Gabe Black (gabeblack@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3644
-gerrit
commit 3152b1ddad460c29e4c1deb20ef7a8e7e32afff7 Author: Gabe Black gabeblack@google.com Date: Thu May 16 05:45:57 2013 -0700
pit: Create an exynos5420 directory which is nearly a copy of exynos5250.
This change creates an exynos5420 directory with code that will eventually implement support for the exynos5420 cpu from Samsung. Currently it's a copy of the exynos5250 directory with the name changed. There are going to be some problems where headers in src/cpu/samsung/exynos-common include headers in the exynos5250 directory directly.
Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1 Signed-off-by: Gabe Black gabeblack@chromium.org --- src/cpu/samsung/Kconfig | 16 +- src/cpu/samsung/Makefile.inc | 3 +- src/cpu/samsung/exynos5420/Kconfig | 133 +++++ src/cpu/samsung/exynos5420/Makefile.inc | 55 ++ src/cpu/samsung/exynos5420/bootblock.c | 43 ++ src/cpu/samsung/exynos5420/chip.h | 40 ++ src/cpu/samsung/exynos5420/clk.h | 624 ++++++++++++++++++++++ src/cpu/samsung/exynos5420/clock.c | 691 ++++++++++++++++++++++++ src/cpu/samsung/exynos5420/clock_init.c | 445 ++++++++++++++++ src/cpu/samsung/exynos5420/cpu.c | 181 +++++++ src/cpu/samsung/exynos5420/cpu.h | 130 +++++ src/cpu/samsung/exynos5420/dmc.h | 343 ++++++++++++ src/cpu/samsung/exynos5420/dmc_common.c | 183 +++++++ src/cpu/samsung/exynos5420/dmc_init_ddr3.c | 277 ++++++++++ src/cpu/samsung/exynos5420/dp-core.h | 268 ++++++++++ src/cpu/samsung/exynos5420/dp-reg.c | 495 ++++++++++++++++++ src/cpu/samsung/exynos5420/dp.h | 497 ++++++++++++++++++ src/cpu/samsung/exynos5420/dsim.h | 109 ++++ src/cpu/samsung/exynos5420/fb.c | 597 +++++++++++++++++++++ src/cpu/samsung/exynos5420/fimd.h | 138 +++++ src/cpu/samsung/exynos5420/gpio.c | 279 ++++++++++ src/cpu/samsung/exynos5420/gpio.h | 578 ++++++++++++++++++++ src/cpu/samsung/exynos5420/i2c.c | 405 ++++++++++++++ src/cpu/samsung/exynos5420/i2c.h | 41 ++ src/cpu/samsung/exynos5420/i2s-regs.h | 142 +++++ src/cpu/samsung/exynos5420/mct.c | 104 ++++ src/cpu/samsung/exynos5420/monotonic_timer.c | 57 ++ src/cpu/samsung/exynos5420/periph.h | 69 +++ src/cpu/samsung/exynos5420/pinmux.c | 298 +++++++++++ src/cpu/samsung/exynos5420/pinmux.h | 55 ++ src/cpu/samsung/exynos5420/power.c | 138 +++++ src/cpu/samsung/exynos5420/power.h | 90 ++++ src/cpu/samsung/exynos5420/pwm.c | 191 +++++++ src/cpu/samsung/exynos5420/pwm.h | 70 +++ src/cpu/samsung/exynos5420/reset.c | 26 + src/cpu/samsung/exynos5420/setup.h | 753 +++++++++++++++++++++++++++ src/cpu/samsung/exynos5420/spi.c | 222 ++++++++ src/cpu/samsung/exynos5420/spi.h | 98 ++++ src/cpu/samsung/exynos5420/sysreg.h | 37 ++ src/cpu/samsung/exynos5420/timer.c | 110 ++++ src/cpu/samsung/exynos5420/timer.h | 25 + src/cpu/samsung/exynos5420/tmu.c | 215 ++++++++ src/cpu/samsung/exynos5420/tmu.h | 134 +++++ src/cpu/samsung/exynos5420/uart.c | 200 +++++++ src/cpu/samsung/exynos5420/uart.h | 54 ++ src/cpu/samsung/exynos5420/wakeup.c | 50 ++ src/cpu/samsung/exynos5420/wakeup.h | 42 ++ src/mainboard/google/snow/Kconfig | 2 +- 48 files changed, 9749 insertions(+), 4 deletions(-)
diff --git a/src/cpu/samsung/Kconfig b/src/cpu/samsung/Kconfig index 9e2ec4c..3b6df9e 100644 --- a/src/cpu/samsung/Kconfig +++ b/src/cpu/samsung/Kconfig @@ -1,4 +1,4 @@ -config CPU_SAMSUNG_EXYNOS5 +config CPU_SAMSUNG_EXYNOS5250 depends on ARCH_ARMV7 select HAVE_MONOTONIC_TIMER select HAVE_UART_SPECIAL @@ -6,6 +6,18 @@ config CPU_SAMSUNG_EXYNOS5 bool default n
-if CPU_SAMSUNG_EXYNOS5 +config CPU_SAMSUNG_EXYNOS5420 + depends on ARCH_ARMV7 + select HAVE_MONOTONIC_TIMER + select HAVE_UART_SPECIAL + select DEFAULT_EARLY_CONSOLE + bool + default n + +if CPU_SAMSUNG_EXYNOS5250 source src/cpu/samsung/exynos5250/Kconfig endif + +if CPU_SAMSUNG_EXYNOS5420 +source src/cpu/samsung/exynos5420/Kconfig +endif diff --git a/src/cpu/samsung/Makefile.inc b/src/cpu/samsung/Makefile.inc index 9110983..496b5f7 100644 --- a/src/cpu/samsung/Makefile.inc +++ b/src/cpu/samsung/Makefile.inc @@ -1 +1,2 @@ -subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5) += exynos5250 +subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5250) += exynos5250 +subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5420) += exynos5420 diff --git a/src/cpu/samsung/exynos5420/Kconfig b/src/cpu/samsung/exynos5420/Kconfig new file mode 100644 index 0000000..2f7ea94 --- /dev/null +++ b/src/cpu/samsung/exynos5420/Kconfig @@ -0,0 +1,133 @@ +config BOOTBLOCK_CPU_INIT + string + default "cpu/samsung/exynos5420/bootblock.c" + help + CPU/SoC-specific bootblock code. This is useful if the + bootblock must load microcode or copy data from ROM before + searching for the bootblock. + +config EXYNOS_ACE_SHA + bool + default n + +config BL1_SIZE_KB + int + default 8 + +# Example SRAM/iRAM map for Exynos5420 platform: +# +# 0x0202_0000: vendor-provided BL1 +# 0x0202_3400: bootblock, assume up to 32KB in size +# 0x0203_0000: romstage, assume up to 128KB in size. +# 0x0207_8000: stack pointer + +config BOOTBLOCK_BASE + hex + default 0x02023400 + +config ROMSTAGE_BASE + hex + default 0x02030000 + +config ROMSTAGE_SIZE + hex + default 0x10000 + +# Stack may reside in either IRAM or DRAM. We will define it to live +# at the top of IRAM for now. +# +# Stack grows downward, push operation stores register contents in +# consecutive memory locations ending just below SP +config STACK_TOP + hex + default 0x02078000 + +config STACK_BOTTOM + hex + default 0x02077000 + +config STACK_SIZE + hex + default 0x1000 + +config CBFS_ROM_OFFSET + # Calculated by BL1 + max bootblock size. + hex "offset of CBFS data in ROM" + default 0x0A000 + +# TODO Change this to some better address not overlapping bootblock when +# cbfstool supports creating header in arbitrary location. +config CBFS_HEADER_ROM_OFFSET + hex "offset of master CBFS header in ROM" + default 0x2040 + +# TODO We may probably move this to board-specific implementation files instead +# of KConfig values. +config CBFS_CACHE_ADDRESS + hex "memory address to put CBFS cache data" + default 0x02060000 + +config CBFS_CACHE_SIZE + hex "size of CBFS cache data" + default 0x000017000 + +# FIXME: This is for copying SPI content into SRAM temporarily and +# will be removed when we have the SPI streaming driver implemented. +config SPI_IMAGE_HACK + hex + default 0x02060000 + +# FIXME: other magic numbers that should probably go away +config XIP_ROM_SIZE + hex + default ROMSTAGE_SIZE + +config SYS_SDRAM_BASE + hex + default 0x40000000 + +config SYS_TEXT_BASE + hex + default 0x43e00000 + +config COREBOOT_TABLES_SIZE + hex + default 0x4000000 + +choice CONSOLE_SERIAL_UART_CHOICES + prompt "Serial Console UART" + default CONSOLE_SERIAL_UART3 + depends on CONSOLE_SERIAL_UART + +config CONSOLE_SERIAL_UART0 + bool "UART0" + help + Serial console on UART0 + +config CONSOLE_SERIAL_UART1 + bool "UART1" + help + Serial console on UART1 + +config CONSOLE_SERIAL_UART2 + bool "UART2" + help + Serial console on UART2 + +config CONSOLE_SERIAL_UART3 + bool "UART3" + help + Serial console on UART3 + +endchoice + +config CONSOLE_SERIAL_UART_ADDRESS + hex + depends on CONSOLE_SERIAL_UART + default 0x12c00000 if CONSOLE_SERIAL_UART0 + default 0x12c10000 if CONSOLE_SERIAL_UART1 + default 0x12c20000 if CONSOLE_SERIAL_UART2 + default 0x12c30000 if CONSOLE_SERIAL_UART3 + help + Map the UART names to the respective MMIO address. + diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc new file mode 100644 index 0000000..4099b12 --- /dev/null +++ b/src/cpu/samsung/exynos5420/Makefile.inc @@ -0,0 +1,55 @@ +# Run an intermediate step when producing coreboot.rom +# that adds additional components to the final firmware +# image outside of CBFS +INTERMEDIATE += exynos5420_add_bl1 + +bootblock-y += spi.c +bootblock-y += pinmux.c mct.c power.c +# Clock is required for UART +bootblock-$(CONFIG_EARLY_CONSOLE) += clock_init.c +bootblock-$(CONFIG_EARLY_CONSOLE) += clock.c +bootblock-$(CONFIG_EARLY_CONSOLE) += monotonic_timer.c +bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c +bootblock-y += wakeup.c +bootblock-y += gpio.c +bootblock-$(CONFIG_EARLY_CONSOLE) += pwm.c +bootblock-$(CONFIG_EARLY_CONSOLE) += timer.c + +romstage-y += spi.c +romstage-y += clock.c +romstage-y += clock_init.c +romstage-y += pinmux.c # required by s3c24x0_i2c and uart. +romstage-y += dmc_common.c +romstage-y += dmc_init_ddr3.c +romstage-y += power.c +romstage-y += mct.c +romstage-y += monotonic_timer.c +romstage-$(CONFIG_EARLY_CONSOLE) += uart.c +romstage-y += wakeup.c +romstage-y += pwm.c # needed by timer.c +romstage-y += gpio.c +romstage-y += timer.c +romstage-y += i2c.c +#romstage-y += wdt.c + +ramstage-y += spi.c +ramstage-y += clock.c +ramstage-y += clock_init.c +ramstage-y += pinmux.c +ramstage-y += power.c +ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c +ramstage-y += cpu.c +ramstage-y += tmu.c +ramstage-y += mct.c +ramstage-y += monotonic_timer.c +ramstage-y += pwm.c # needed by timer.c +ramstage-y += timer.c +ramstage-y += gpio.c +ramstage-y += i2c.c +ramstage-y += dp-reg.c +ramstage-y += fb.c + +exynos5420_add_bl1: $(obj)/coreboot.pre + printf " DD Adding Samsung Exynos5420 BL1\n" + dd if=3rdparty/cpu/samsung/exynos5420/E5420.nbl1.bin \ + of=$(obj)/coreboot.pre conv=notrunc >/dev/null 2>&1 diff --git a/src/cpu/samsung/exynos5420/bootblock.c b/src/cpu/samsung/exynos5420/bootblock.c new file mode 100644 index 0000000..f523428 --- /dev/null +++ b/src/cpu/samsung/exynos5420/bootblock.c @@ -0,0 +1,43 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include "clk.h" +#include "wakeup.h" + +void bootblock_cpu_init(void); +void bootblock_cpu_init(void) +{ + /* kick off the multi-core timer. + * We want to do this as early as we can. + */ + mct_start(); + + if (get_wakeup_state() == WAKEUP_DIRECT) { + wakeup(); + /* Never returns. */ + } + + /* For most ARM systems, we have to initialize firmware media source + * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is + * already handled by iROM so there's no need to setup again. + */ + + console_init(); +} diff --git a/src/cpu/samsung/exynos5420/chip.h b/src/cpu/samsung/exynos5420/chip.h new file mode 100644 index 0000000..7f1aadc --- /dev/null +++ b/src/cpu/samsung/exynos5420/chip.h @@ -0,0 +1,40 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_H +#define CPU_SAMSUNG_EXYNOS5420_H + +struct cpu_samsung_exynos5420_config { + /* special magic numbers! */ + int clkval_f; + int upper_margin; + int lower_margin; + int vsync; + int left_margin; + int right_margin; + int hsync; + + int xres; + int yres; + int bpp; + + u32 lcdbase; +}; + +#endif /* CPU_SAMSUNG_EXYNOS5420_H */ diff --git a/src/cpu/samsung/exynos5420/clk.h b/src/cpu/samsung/exynos5420/clk.h new file mode 100644 index 0000000..631b637 --- /dev/null +++ b/src/cpu/samsung/exynos5420/clk.h @@ -0,0 +1,624 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_CLK_H +#define CPU_SAMSUNG_EXYNOS5420_CLK_H + +#include <stdint.h> + +enum periph_id; + +#define APLL 0 +#define MPLL 1 +#define EPLL 2 +#define HPLL 3 +#define VPLL 4 +#define BPLL 5 + +enum pll_src_bit { + SRC_MPLL = 6, + SRC_EPLL, + SRC_VPLL, +}; + +/* * + * This structure is to store the src bit, div bit and prediv bit + * positions of the peripheral clocks of the src and div registers + */ +struct clk_bit_info { + s8 src_bit; /* offset in register to clock source field */ + s8 n_src_bits; /* number of bits in 'src_bit' field */ + s8 div_bit; + s8 prediv_bit; +}; + +unsigned long get_pll_clk(int pllreg); +unsigned long get_arm_clk(void); +unsigned long get_pwm_clk(void); +unsigned long get_uart_clk(int dev_index); +void set_mmc_clk(int dev_index, unsigned int div); + +/** + * get the clk frequency of the required peripherial + * + * @param peripherial Peripherial id + * + * @return frequency of the peripherial clk + */ +unsigned long clock_get_periph_rate(enum periph_id peripheral); + +#include "pinmux.h" + + +#define MCT_ADDRESS 0x101c0000 + +#define MCT_HZ 24000000 + +/* + * Set mshci controller instances clock drivder + * + * @param enum periph_id instance of the mshci controller + * + * Return 0 if ok else -1 + */ +int clock_set_mshci(enum periph_id peripheral); + +/* + * Sets the epll clockrate + * + * @param rate Required clock rate to the presacaler in Hz + * + * Return 0 if ok else -1 + */ +int clock_epll_set_rate(unsigned long rate); + +/* + * selects the clk source for I2S MCLK + */ +void clock_select_i2s_clk_source(void); + +/* + * Set prescaler division based on input and output frequency + * for i2s audio clock + * + * @param src_frq Source frequency in Hz + * @param dst_frq Required MCLK frequency in Hz + * + * Return 0 if ok else -1 + */ +int clock_set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq); + +struct exynos5_clock { + unsigned int apll_lock; /* base + 0 */ + unsigned char res1[0xfc]; + unsigned int apll_con0; + unsigned int apll_con1; + unsigned char res2[0xf8]; + unsigned int src_cpu; + unsigned char res3[0x1fc]; + unsigned int mux_stat_cpu; + unsigned char res4[0xfc]; + unsigned int div_cpu0; + unsigned int div_cpu1; + unsigned char res5[0xf8]; + unsigned int div_stat_cpu0; + unsigned int div_stat_cpu1; + unsigned char res6[0x1f8]; + unsigned int gate_sclk_cpu; + unsigned char res7[0x1fc]; + unsigned int clkout_cmu_cpu; + unsigned int clkout_cmu_cpu_div_stat; + unsigned char res8[0x5f8]; + + unsigned int armclk_stopctrl; /* base + 0x1000 */ + unsigned int atclk_stopctrl; + unsigned char res9[0x8]; + unsigned int parityfail_status; + unsigned int parityfail_clear; + unsigned char res10[0x8]; + unsigned int pwr_ctrl; + unsigned int pwr_ctr2; + unsigned char res11[0xd8]; + unsigned int apll_con0_l8; + unsigned int apll_con0_l7; + unsigned int apll_con0_l6; + unsigned int apll_con0_l5; + unsigned int apll_con0_l4; + unsigned int apll_con0_l3; + unsigned int apll_con0_l2; + unsigned int apll_con0_l1; + unsigned int iem_control; + unsigned char res12[0xdc]; + unsigned int apll_con1_l8; + unsigned int apll_con1_l7; + unsigned int apll_con1_l6; + unsigned int apll_con1_l5; + unsigned int apll_con1_l4; + unsigned int apll_con1_l3; + unsigned int apll_con1_l2; + unsigned int apll_con1_l1; + unsigned char res13[0xe0]; + unsigned int div_iem_l8; + unsigned int div_iem_l7; + unsigned int div_iem_l6; + unsigned int div_iem_l5; + unsigned int div_iem_l4; + unsigned int div_iem_l3; + unsigned int div_iem_l2; + unsigned int div_iem_l1; + unsigned char res14[0x2ce0]; + + unsigned int mpll_lock; /* base + 0x4000 */ + unsigned char res15[0xfc]; + unsigned int mpll_con0; + unsigned int mpll_con1; + unsigned char res16[0xf8]; + unsigned int src_core0; + unsigned int src_core1; + unsigned char res17[0xf8]; + unsigned int src_mask_core; + unsigned char res18[0x100]; + unsigned int mux_stat_core1; + unsigned char res19[0xf8]; + unsigned int div_core0; + unsigned int div_core1; + unsigned int div_sysrgt; + unsigned char res20[0xf4]; + unsigned int div_stat_core0; + unsigned int div_stat_core1; + unsigned int div_stat_sysrgt; + unsigned char res21[0x2f4]; + unsigned int gate_ip_core; + unsigned int gate_ip_sysrgt; + unsigned char res22[0xf8]; + unsigned int clkout_cmu_core; + unsigned int clkout_cmu_core_div_stat; + unsigned char res23[0x5f8]; + + unsigned int dcgidx_map0; /* base + 0x5000 */ + unsigned int dcgidx_map1; + unsigned int dcgidx_map2; + unsigned char res24[0x14]; + unsigned int dcgperf_map0; + unsigned int dcgperf_map1; + unsigned char res25[0x18]; + unsigned int dvcidx_map; + unsigned char res26[0x1c]; + unsigned int freq_cpu; + unsigned int freq_dpm; + unsigned char res27[0x18]; + unsigned int dvsemclk_en; + unsigned int maxperf; + unsigned char res28[0x3478]; + + unsigned int div_acp; /* base + 0x8500 */ + unsigned char res29[0xfc]; + unsigned int div_stat_acp; + unsigned char res30[0x1fc]; + unsigned int gate_ip_acp; + unsigned char res31a[0xfc]; + unsigned int div_syslft; + unsigned char res31b[0xc]; + unsigned int div_stat_syslft; + unsigned char res31c[0xc]; + unsigned int gate_bus_syslft; + unsigned char res31d[0xdc]; + unsigned int clkout_cmu_acp; + unsigned int clkout_cmu_acp_div_stat; + unsigned char res32[0x38f8]; + + unsigned int div_isp0; /* base + 0xc300 */ + unsigned int div_isp1; + unsigned int div_isp2; + unsigned char res33[0xf4]; + + unsigned int div_stat_isp0; /* base + 0xc400 */ + unsigned int div_stat_isp1; + unsigned int div_stat_isp2; + unsigned char res34[0x3f4]; + + unsigned int gate_ip_isp0; /* base + 0xc800 */ + unsigned int gate_ip_isp1; + unsigned char res35[0xf8]; + unsigned int gate_sclk_isp; + unsigned char res36[0xc]; + unsigned int mcuisp_pwr_ctrl; + unsigned char res37[0xec]; + unsigned int clkout_cmu_isp; + unsigned int clkout_cmu_isp_div_stat; + unsigned char res38[0x3618]; + + unsigned int cpll_lock; /* base + 0x10020 */ + unsigned char res39[0xc]; + unsigned int epll_lock; + unsigned char res40[0xc]; + unsigned int vpll_lock; + unsigned char res41a[0xc]; + unsigned int gpll_lock; + unsigned char res41b[0xcc]; + unsigned int cpll_con0; + unsigned int cpll_con1; + unsigned char res42[0x8]; + unsigned int epll_con0; + unsigned int epll_con1; + unsigned int epll_con2; + unsigned char res43[0x4]; + unsigned int vpll_con0; + unsigned int vpll_con1; + unsigned int vpll_con2; + unsigned char res44a[0x4]; + unsigned int gpll_con0; + unsigned int gpll_con1; + unsigned char res44b[0xb8]; + unsigned int src_top0; + unsigned int src_top1; + unsigned int src_top2; + unsigned int src_top3; + unsigned int src_gscl; + unsigned int src_disp0_0; + unsigned int src_disp0_1; + unsigned int src_disp1_0; + unsigned int src_disp1_1; + unsigned char res46[0xc]; + unsigned int src_mau; + unsigned int src_fsys; + unsigned char res47[0x8]; + unsigned int src_peric0; + unsigned int src_peric1; + unsigned char res48[0x18]; + unsigned int sclk_src_isp; + unsigned char res49[0x9c]; + unsigned int src_mask_top; + unsigned char res50[0xc]; + unsigned int src_mask_gscl; + unsigned int src_mask_disp0_0; + unsigned int src_mask_disp0_1; + unsigned int src_mask_disp1_0; + unsigned int src_mask_disp1_1; + unsigned int src_mask_maudio; + unsigned char res52[0x8]; + unsigned int src_mask_fsys; + unsigned char res53[0xc]; + unsigned int src_mask_peric0; + unsigned int src_mask_peric1; + unsigned char res54[0x18]; + unsigned int src_mask_isp; + unsigned char res55[0x9c]; + unsigned int mux_stat_top0; + unsigned int mux_stat_top1; + unsigned int mux_stat_top2; + unsigned int mux_stat_top3; + unsigned char res56[0xf0]; + unsigned int div_top0; + unsigned int div_top1; + unsigned char res57[0x8]; + unsigned int div_gscl; + unsigned int div_disp0_0; + unsigned int div_disp0_1; + unsigned int div_disp1_0; + unsigned int div_disp1_1; + unsigned char res59[0x8]; + unsigned int div_gen; + unsigned char res60[0x4]; + unsigned int div_mau; + unsigned int div_fsys0; + unsigned int div_fsys1; + unsigned int div_fsys2; + unsigned int div_fsys3; + unsigned int div_peric0; + unsigned int div_peric1; + unsigned int div_peric2; + unsigned int div_peric3; + unsigned int div_peric4; + unsigned int div_peric5; + unsigned char res61[0x10]; + unsigned int sclk_div_isp; + unsigned char res62[0xc]; + unsigned int div2_ratio0; + unsigned int div2_ratio1; + unsigned char res63[0x8]; + unsigned int div4_ratio; + unsigned char res64[0x6c]; + unsigned int div_stat_top0; + unsigned int div_stat_top1; + unsigned char res65[0x8]; + unsigned int div_stat_gscl; + unsigned int div_stat_disp0_0; + unsigned int div_stat_disp0_1; + unsigned int div_stat_disp1_0; + unsigned int div_stat_disp1_1; + unsigned char res67[0x8]; + unsigned int div_stat_gen; + unsigned char res68[0x4]; + unsigned int div_stat_maudio; + unsigned int div_stat_fsys0; + unsigned int div_stat_fsys1; + unsigned int div_stat_fsys2; + unsigned int div_stat_fsys3; + unsigned int div_stat_peric0; + unsigned int div_stat_peric1; + unsigned int div_stat_peric2; + unsigned int div_stat_peric3; + unsigned int div_stat_peric4; + unsigned int div_stat_peric5; + unsigned char res69[0x10]; + unsigned int sclk_div_stat_isp; + unsigned char res70[0xc]; + unsigned int div2_stat0; + unsigned int div2_stat1; + unsigned char res71[0x8]; + unsigned int div4_stat; + unsigned char res72[0x180]; + unsigned int gate_top_sclk_disp0; + unsigned int gate_top_sclk_disp1; + unsigned int gate_top_sclk_gen; + unsigned char res74[0xc]; + unsigned int gate_top_sclk_mau; + unsigned int gate_top_sclk_fsys; + unsigned char res75[0xc]; + unsigned int gate_top_sclk_peric; + unsigned char res76[0x1c]; + unsigned int gate_top_sclk_isp; + unsigned char res77[0xac]; + unsigned int gate_ip_gscl; + unsigned int gate_ip_disp0; + unsigned int gate_ip_disp1; + unsigned int gate_ip_mfc; + unsigned int gate_ip_g3d; + unsigned int gate_ip_gen; + unsigned char res79[0xc]; + unsigned int gate_ip_fsys; + unsigned char res80[0x4]; + unsigned int gate_ip_gps; + unsigned int gate_ip_peric; + unsigned char res81[0xc]; + unsigned int gate_ip_peris; + unsigned char res82[0x1c]; + unsigned int gate_block; + unsigned char res83[0x7c]; + unsigned int clkout_cmu_top; + unsigned int clkout_cmu_top_div_stat; + unsigned char res84[0x37f8]; + + unsigned int src_lex; /* base + 0x14200 */ + unsigned char res85[0x1fc]; + unsigned int mux_stat_lex; + unsigned char res85b[0xfc]; + unsigned int div_lex; + unsigned char res86[0xfc]; + unsigned int div_stat_lex; + unsigned char res87[0x1fc]; + unsigned int gate_ip_lex; + unsigned char res88[0x1fc]; + unsigned int clkout_cmu_lex; + unsigned int clkout_cmu_lex_div_stat; + unsigned char res89[0x3af8]; + + unsigned int div_r0x; /* base + 0x18500 */ + unsigned char res90[0xfc]; + unsigned int div_stat_r0x; + unsigned char res91[0x1fc]; + unsigned int gate_ip_r0x; + unsigned char res92[0x1fc]; + unsigned int clkout_cmu_r0x; + unsigned int clkout_cmu_r0x_div_stat; + unsigned char res94[0x3af8]; + + unsigned int div_r1x; /* base + 0x1c500 */ + unsigned char res95[0xfc]; + unsigned int div_stat_r1x; + unsigned char res96[0x1fc]; + unsigned int gate_ip_r1x; + unsigned char res97[0x1fc]; + unsigned int clkout_cmu_r1x; + unsigned int clkout_cmu_r1x_div_stat; + unsigned char res98[0x3608]; + + unsigned int bpll_lock; /* base + 0x2000c */ + unsigned char res99[0xfc]; + unsigned int bpll_con0; + unsigned int bpll_con1; + unsigned char res100[0xe8]; + unsigned int src_cdrex; + unsigned char res101[0x1fc]; + unsigned int mux_stat_cdrex; + unsigned char res102[0xfc]; + unsigned int div_cdrex; + unsigned int div_cdrex2; + unsigned char res103[0xf8]; + unsigned int div_stat_cdrex; + unsigned char res104[0x2fc]; + unsigned int gate_ip_cdrex; + unsigned char res105[0xc]; + unsigned int c2c_monitor; + unsigned int dmc_pwr_ctrl; + unsigned char res106[0x4]; + unsigned int drex2_pause; + unsigned char res107[0xe0]; + unsigned int clkout_cmu_cdrex; + unsigned int clkout_cmu_cdrex_div_stat; + unsigned char res108[0x8]; + unsigned int lpddr3phy_ctrl; + unsigned char res109a[0xc]; + unsigned int lpddr3phy_con3; + unsigned int pll_div2_sel; + unsigned char res109b[0xf5e4]; +}; + +struct exynos5_mct_regs { + uint32_t mct_cfg; + uint8_t reserved0[0xfc]; + uint32_t g_cnt_l; + uint32_t g_cnt_u; + uint8_t reserved1[0x8]; + uint32_t g_cnt_wstat; + uint8_t reserved2[0xec]; + uint32_t g_comp0_l; + uint32_t g_comp0_u; + uint32_t g_comp0_addr_incr; + uint8_t reserved3[0x4]; + uint32_t g_comp1_l; + uint32_t g_comp1_u; + uint32_t g_comp1_addr_incr; + uint8_t reserved4[0x4]; + uint32_t g_comp2_l; + uint32_t g_comp2_u; + uint32_t g_comp2_addr_incr; + uint8_t reserved5[0x4]; + uint32_t g_comp3_l; + uint32_t g_comp3_u; + uint32_t g_comp3_addr_incr; + uint8_t reserved6[0x4]; + uint32_t g_tcon; + uint32_t g_int_cstat; + uint32_t g_int_enb; + uint32_t g_wstat; + uint8_t reserved7[0xb0]; + uint32_t l0_tcntb; + uint32_t l0_tcnto; + uint32_t l0_icntb; + uint32_t l0_icnto; + uint32_t l0_frcntb; + uint32_t l0_frcnto; + uint8_t reserved8[0x8]; + uint32_t l0_tcon; + uint8_t reserved9[0xc]; + uint32_t l0_int_cstat; + uint32_t l0_int_enb; + uint8_t reserved10[0x8]; + uint32_t l0_wstat; + uint8_t reserved11[0xbc]; + uint32_t l1_tcntb; + uint32_t l1_tcnto; + uint32_t l1_icntb; + uint32_t l1_icnto; + uint32_t l1_frcntb; + uint32_t l1_frcnto; + uint8_t reserved12[0x8]; + uint32_t l1_tcon; + uint8_t reserved13[0xc]; + uint32_t l1_int_cstat; + uint32_t l1_int_enb; + uint8_t reserved14[0x8]; + uint32_t l1_wstat; +}; + +#define EXYNOS5_EPLLCON0_LOCKED_SHIFT 29 /* EPLL Locked bit position*/ +#define EPLL_SRC_CLOCK 24000000 /*24 MHz Cristal Input */ +#define TIMEOUT_EPLL_LOCK 1000 + +#define AUDIO_0_RATIO_MASK 0x0f +#define AUDIO_1_RATIO_MASK 0x0f + +#define CLK_SRC_PERIC1 0x254 +#define AUDIO1_SEL_MASK 0xf +#define CLK_SRC_AUDIOCDCLK1 0x0 +#define CLK_SRC_XXTI 0x1 +#define CLK_SRC_SCLK_EPLL 0x7 + +/* CON0 bit-fields */ +#define EPLL_CON0_MDIV_MASK 0x1ff +#define EPLL_CON0_PDIV_MASK 0x3f +#define EPLL_CON0_SDIV_MASK 0x7 +#define EPLL_CON0_LOCKED_SHIFT 29 +#define EPLL_CON0_MDIV_SHIFT 16 +#define EPLL_CON0_PDIV_SHIFT 8 +#define EPLL_CON0_SDIV_SHIFT 0 +#define EPLL_CON0_LOCK_DET_EN_SHIFT 28 +#define EPLL_CON0_LOCK_DET_EN_MASK 1 + +/* structure for epll configuration used in audio clock configuration */ +struct st_epll_con_val { + unsigned int freq_out; /* frequency out */ + unsigned int en_lock_det; /* enable lock detect */ + unsigned int m_div; /* m divider value */ + unsigned int p_div; /* p divider value */ + unsigned int s_div; /* s divider value */ + unsigned int k_dsm; /* k value of delta signal modulator */ +}; + +/** + * Low-level function to set the clock pre-ratio for a peripheral + * + * @param periph_id Peripheral ID of peripheral to change + * @param divisor New divisor for this peripheral's clock + */ +void clock_ll_set_pre_ratio(enum periph_id periph_id, unsigned divisor); + +/** + * Low-level function to set the clock ratio for a peripheral + * + * @param periph_id Peripheral ID of peripheral to change + * @param divisor New divisor for this peripheral's clock + */ +void clock_ll_set_ratio(enum periph_id periph_id, unsigned divisor); + +/** + * Low-level function that selects the best clock scalars for a given rate and + * sets up the given peripheral's clock accordingly. + * + * @param periph_id Peripheral ID of peripheral to change + * @param rate Desired clock rate in Hz + * + * @return zero on success, negative on error + */ +int clock_set_rate(enum periph_id periph_id, unsigned int rate); + +/* Clock gate unused IP */ +void clock_gate(void); + +void mct_start(void); +uint64_t mct_raw_value(void); + +#include "dmc.h" + +/* These are the ratio's for configuring ARM clock */ +struct arm_clk_ratios { + unsigned int arm_freq_mhz; /* Frequency of ARM core in MHz */ + + unsigned int apll_mdiv; + unsigned int apll_pdiv; + unsigned int apll_sdiv; + + unsigned int arm2_ratio; + unsigned int apll_ratio; + unsigned int pclk_dbg_ratio; + unsigned int atb_ratio; + unsigned int periph_ratio; + unsigned int acp_ratio; + unsigned int cpud_ratio; + unsigned int arm_ratio; +}; + +/** + * Get the clock ratios for CPU configuration + * + * @return pointer to the clock ratios that we should use + */ +struct arm_clk_ratios *get_arm_clk_ratios(void); + +/* + * Initialize clock for the device + */ +struct mem_timings; +void system_clock_init(struct mem_timings *mem, + struct arm_clk_ratios *arm_clk_ratio); + +#endif diff --git a/src/cpu/samsung/exynos5420/clock.c b/src/cpu/samsung/exynos5420/clock.c new file mode 100644 index 0000000..e199e6b --- /dev/null +++ b/src/cpu/samsung/exynos5420/clock.c @@ -0,0 +1,691 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <stdlib.h> +#include <assert.h> +#include <arch/io.h> +#include "timer.h" +#include "clk.h" +#include "cpu.h" + +/* input clock of PLL: SMDK5420 has 24MHz input clock */ +#define CONFIG_SYS_CLK_FREQ 24000000 + +static struct arm_clk_ratios arm_clk_ratios[] = { + { + .arm_freq_mhz = 600, + + .apll_mdiv = 0xc8, + .apll_pdiv = 0x4, + .apll_sdiv = 0x1, + + .arm2_ratio = 0x0, + .apll_ratio = 0x1, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x2, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x1, + .arm_ratio = 0x0, + }, { + .arm_freq_mhz = 800, + + .apll_mdiv = 0x64, + .apll_pdiv = 0x3, + .apll_sdiv = 0x0, + + .arm2_ratio = 0x0, + .apll_ratio = 0x1, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x3, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x2, + .arm_ratio = 0x0, + }, { + .arm_freq_mhz = 1000, + + .apll_mdiv = 0x7d, + .apll_pdiv = 0x3, + .apll_sdiv = 0x0, + + .arm2_ratio = 0x0, + .apll_ratio = 0x1, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x4, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x2, + .arm_ratio = 0x0, + }, { + .arm_freq_mhz = 1200, + + .apll_mdiv = 0x96, + .apll_pdiv = 0x3, + .apll_sdiv = 0x0, + + .arm2_ratio = 0x0, + .apll_ratio = 0x3, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x5, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x3, + .arm_ratio = 0x0, + }, { + .arm_freq_mhz = 1400, + + .apll_mdiv = 0xaf, + .apll_pdiv = 0x3, + .apll_sdiv = 0x0, + + .arm2_ratio = 0x0, + .apll_ratio = 0x3, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x6, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x3, + .arm_ratio = 0x0, + }, { + .arm_freq_mhz = 1700, + + .apll_mdiv = 0x1a9, + .apll_pdiv = 0x6, + .apll_sdiv = 0x0, + + .arm2_ratio = 0x0, + .apll_ratio = 0x3, + .pclk_dbg_ratio = 0x1, + .atb_ratio = 0x6, + .periph_ratio = 0x7, + .acp_ratio = 0x7, + .cpud_ratio = 0x3, + .arm_ratio = 0x0, + } +}; + +/* src_bit div_bit prediv_bit */ +static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = { + {0, 4, 0, -1}, + {4, 4, 4, -1}, + {8, 4, 8, -1}, + {12, 4, 12, -1}, + {0, 4, 0, 8}, + {4, 4, 16, 24}, + {8, 4, 0, 8}, + {12, 4, 16, 24}, + {-1, -1, -1, -1}, + {16, 4, 0, 8}, /* PERIPH_ID_SROMC */ + {20, 4, 16, 24}, + {24, 4, 0, 8}, + {0, 4, 0, 4}, + {4, 4, 12, 16}, + {-1, 4, -1, -1}, + {-1, 4, -1, -1}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {-1, 4, 24, 0}, + {24, 4, 0, -1}, + {24, 4, 0, -1}, + {24, 4, 0, -1}, + {24, 4, 0, -1}, + {24, 4, 0, -1}, + {-1, -1, -1, -1}, + {-1, -1, -1, -1}, + {-1, -1, -1, -1}, /* PERIPH_ID_I2S1 */ + {24, 1, 20, -1}, /* PERIPH_ID_SATA */ +}; + +/* Epll Clock division values to achive different frequency output */ +static struct st_epll_con_val epll_div[] = { + { 192000000, 0, 48, 3, 1, 0 }, + { 180000000, 0, 45, 3, 1, 0 }, + { 73728000, 1, 73, 3, 3, 47710 }, + { 67737600, 1, 90, 4, 3, 20762 }, + { 49152000, 0, 49, 3, 3, 9961 }, + { 45158400, 0, 45, 3, 3, 10381 }, + { 180633600, 0, 45, 3, 1, 10381 } +}; + +/* exynos5: return pll clock frequency */ +unsigned long get_pll_clk(int pllreg) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned long r, m, p, s, k = 0, mask, fout; + unsigned int freq; + + switch (pllreg) { + case APLL: + r = readl(&clk->apll_con0); + break; + case BPLL: + r = readl(&clk->bpll_con0); + break; + case MPLL: + r = readl(&clk->mpll_con0); + break; + case EPLL: + r = readl(&clk->epll_con0); + k = readl(&clk->epll_con1); + break; + case VPLL: + r = readl(&clk->vpll_con0); + k = readl(&clk->vpll_con1); + break; + default: + printk(BIOS_DEBUG, "Unsupported PLL (%d)\n", pllreg); + return 0; + } + + /* + * APLL_CON: MIDV [25:16] + * MPLL_CON: MIDV [25:16] + * EPLL_CON: MIDV [24:16] + * VPLL_CON: MIDV [24:16] + */ + if (pllreg == APLL || pllreg == BPLL || pllreg == MPLL) + mask = 0x3ff; + else + mask = 0x1ff; + + m = (r >> 16) & mask; + + /* PDIV [13:8] */ + p = (r >> 8) & 0x3f; + /* SDIV [2:0] */ + s = r & 0x7; + + freq = CONFIG_SYS_CLK_FREQ; + + if (pllreg == EPLL) { + k = k & 0xffff; + /* FOUT = (MDIV + K / 65536) * FIN / (PDIV * 2^SDIV) */ + fout = (m + k / 65536) * (freq / (p * (1 << s))); + } else if (pllreg == VPLL) { + k = k & 0xfff; + /* FOUT = (MDIV + K / 1024) * FIN / (PDIV * 2^SDIV) */ + fout = (m + k / 1024) * (freq / (p * (1 << s))); + } else { + /* FOUT = MDIV * FIN / (PDIV * 2^SDIV) */ + fout = m * (freq / (p * (1 << s))); + } + + return fout; +} + +unsigned long clock_get_periph_rate(enum periph_id peripheral) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + struct clk_bit_info *bit_info = &clk_bit_info[peripheral]; + unsigned long sclk, sub_clk; + unsigned int src, div, sub_div; + + switch (peripheral) { + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART2: + case PERIPH_ID_UART3: + src = readl(&clk->src_peric0); + div = readl(&clk->div_peric0); + break; + case PERIPH_ID_PWM0: + case PERIPH_ID_PWM1: + case PERIPH_ID_PWM2: + case PERIPH_ID_PWM3: + case PERIPH_ID_PWM4: + src = readl(&clk->src_peric0); + div = readl(&clk->div_peric3); + break; + case PERIPH_ID_SPI0: + case PERIPH_ID_SPI1: + src = readl(&clk->src_peric1); + div = readl(&clk->div_peric1); + break; + case PERIPH_ID_SPI2: + src = readl(&clk->src_peric1); + div = readl(&clk->div_peric2); + break; + case PERIPH_ID_SPI3: + case PERIPH_ID_SPI4: + src = readl(&clk->sclk_src_isp); + div = readl(&clk->sclk_div_isp); + break; + case PERIPH_ID_SATA: + src = readl(&clk->src_fsys); + div = readl(&clk->div_fsys0); + break; + case PERIPH_ID_SDMMC0: + case PERIPH_ID_SDMMC1: + case PERIPH_ID_SDMMC2: + case PERIPH_ID_SDMMC3: + src = readl(&clk->src_fsys); + div = readl(&clk->div_fsys1); + break; + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + case PERIPH_ID_I2C4: + case PERIPH_ID_I2C5: + case PERIPH_ID_I2C6: + case PERIPH_ID_I2C7: + sclk = get_pll_clk(MPLL); + sub_div = ((readl(&clk->div_top1) >> bit_info->div_bit) & 0x7) + 1; + div = ((readl(&clk->div_top0) >> bit_info->prediv_bit) & 0x7) + 1; + return (sclk / sub_div) / div; + default: + printk(BIOS_DEBUG, "%s: invalid peripheral %d", __func__, peripheral); + return -1; + }; + + src = (src >> bit_info->src_bit) & ((1 << bit_info->n_src_bits) - 1); + if (peripheral == PERIPH_ID_SATA) { + if (src) + sclk = get_pll_clk(BPLL); + else + sclk = get_pll_clk(MPLL); + } else { + if (src == SRC_MPLL) + sclk = get_pll_clk(MPLL); + else if (src == SRC_EPLL) + sclk = get_pll_clk(EPLL); + else if (src == SRC_VPLL) + sclk = get_pll_clk(VPLL); + else + return 0; + } + + sub_div = (div >> bit_info->div_bit) & 0xf; + sub_clk = sclk / (sub_div + 1); + + if (peripheral == PERIPH_ID_SDMMC0 || peripheral == PERIPH_ID_SDMMC2) { + div = (div >> bit_info->prediv_bit) & 0xff; + return sub_clk / (div + 1); + } + + return sub_clk; +} + +/* exynos5: return ARM clock frequency */ +unsigned long get_arm_clk(void) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned long div; + unsigned long armclk; + unsigned int arm_ratio; + unsigned int arm2_ratio; + + div = readl(&clk->div_cpu0); + + /* ARM_RATIO: [2:0], ARM2_RATIO: [30:28] */ + arm_ratio = (div >> 0) & 0x7; + arm2_ratio = (div >> 28) & 0x7; + + armclk = get_pll_clk(APLL) / (arm_ratio + 1); + armclk /= (arm2_ratio + 1); + + return armclk; +} + +struct arm_clk_ratios *get_arm_clk_ratios(void) +{ + struct arm_clk_ratios *arm_ratio; + unsigned long arm_freq = 1700; /* FIXME: use get_arm_clk() */ + int i; + + for (i = 0, arm_ratio = arm_clk_ratios; i < ARRAY_SIZE(arm_clk_ratios); + i++, arm_ratio++) { + if (arm_ratio->arm_freq_mhz == arm_freq) + return arm_ratio; + } + + return NULL; +} + +/* exynos5: set the mmc clock */ +void set_mmc_clk(int dev_index, unsigned int div) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned int *addr; + unsigned int val; + + /* + * CLK_DIV_FSYS1 + * MMC0_PRE_RATIO [15:8], MMC1_PRE_RATIO [31:24] + * CLK_DIV_FSYS2 + * MMC2_PRE_RATIO [15:8], MMC3_PRE_RATIO [31:24] + */ + if (dev_index < 2) { + addr = &clk->div_fsys1; + } else { + addr = &clk->div_fsys2; + dev_index -= 2; + } + + val = readl(addr); + val &= ~(0xff << ((dev_index << 4) + 8)); + val |= (div & 0xff) << ((dev_index << 4) + 8); + writel(val, addr); +} + +void clock_ll_set_pre_ratio(enum periph_id periph_id, unsigned divisor) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned shift; + unsigned mask = 0xff; + u32 *reg; + + /* + * For now we only handle a very small subset of peipherals here. + * Others will need to (and do) mangle the clock registers + * themselves, At some point it is hoped that this function can work + * from a table or calculated register offset / mask. For now this + * is at least better than spreading clock control code around + * U-Boot. + */ + switch (periph_id) { + case PERIPH_ID_SPI0: + reg = &clk->div_peric1; + shift = 8; + break; + case PERIPH_ID_SPI1: + reg = &clk->div_peric1; + shift = 24; + break; + case PERIPH_ID_SPI2: + reg = &clk->div_peric2; + shift = 8; + break; + case PERIPH_ID_SPI3: + reg = &clk->sclk_div_isp; + shift = 4; + break; + case PERIPH_ID_SPI4: + reg = &clk->sclk_div_isp; + shift = 16; + break; + default: + printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__, + periph_id); + return; + } + clrsetbits_le32(reg, mask << shift, (divisor & mask) << shift); +} + +void clock_ll_set_ratio(enum periph_id periph_id, unsigned divisor) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned shift; + unsigned mask = 0xff; + u32 *reg; + + switch (periph_id) { + case PERIPH_ID_SPI0: + reg = &clk->div_peric1; + shift = 0; + break; + case PERIPH_ID_SPI1: + reg = &clk->div_peric1; + shift = 16; + break; + case PERIPH_ID_SPI2: + reg = &clk->div_peric2; + shift = 0; + break; + case PERIPH_ID_SPI3: + reg = &clk->sclk_div_isp; + shift = 0; + break; + case PERIPH_ID_SPI4: + reg = &clk->sclk_div_isp; + shift = 12; + break; + default: + printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__, + periph_id); + return; + } + clrsetbits_le32(reg, mask << shift, (divisor & mask) << shift); +} + +/** + * Linearly searches for the most accurate main and fine stage clock scalars + * (divisors) for a specified target frequency and scalar bit sizes by checking + * all multiples of main_scalar_bits values. Will always return scalars up to or + * slower than target. + * + * @param main_scalar_bits Number of main scalar bits, must be > 0 and < 32 + * @param fine_scalar_bits Number of fine scalar bits, must be > 0 and < 32 + * @param input_freq Clock frequency to be scaled in Hz + * @param target_freq Desired clock frequency in Hz + * @param best_fine_scalar Pointer to store the fine stage divisor + * + * @return best_main_scalar Main scalar for desired frequency or -1 if none + * found + */ +static int clock_calc_best_scalar(unsigned int main_scaler_bits, + unsigned int fine_scalar_bits, unsigned int input_rate, + unsigned int target_rate, unsigned int *best_fine_scalar) +{ + int i; + int best_main_scalar = -1; + unsigned int best_error = target_rate; + const unsigned int cap = (1 << fine_scalar_bits) - 1; + const unsigned int loops = 1 << main_scaler_bits; + + printk(BIOS_DEBUG, "Input Rate is %u, Target is %u, Cap is %u\n", input_rate, + target_rate, cap); + + ASSERT(best_fine_scalar != NULL); + ASSERT(main_scaler_bits <= fine_scalar_bits); + + *best_fine_scalar = 1; + + if (input_rate == 0 || target_rate == 0) + return -1; + + if (target_rate >= input_rate) + return 1; + + for (i = 1; i <= loops; i++) { + const unsigned int effective_div = MAX(MIN(input_rate / i / + target_rate, cap), 1); + const unsigned int effective_rate = input_rate / i / + effective_div; + const int error = target_rate - effective_rate; + + printk(BIOS_DEBUG, "%d|effdiv:%u, effrate:%u, error:%d\n", i, effective_div, + effective_rate, error); + + if (error >= 0 && error <= best_error) { + best_error = error; + best_main_scalar = i; + *best_fine_scalar = effective_div; + } + } + + return best_main_scalar; +} + +int clock_set_rate(enum periph_id periph_id, unsigned int rate) +{ + int main; + unsigned int fine; + + switch (periph_id) { + case PERIPH_ID_SPI0: + case PERIPH_ID_SPI1: + case PERIPH_ID_SPI2: + case PERIPH_ID_SPI3: + case PERIPH_ID_SPI4: + main = clock_calc_best_scalar(4, 8, 400000000, rate, &fine); + if (main < 0) { + printk(BIOS_DEBUG, "%s: Cannot set clock rate for periph %d", + __func__, periph_id); + return -1; + } + clock_ll_set_ratio(periph_id, main - 1); + clock_ll_set_pre_ratio(periph_id, fine - 1); + break; + default: + printk(BIOS_DEBUG, "%s: Unsupported peripheral ID %d\n", __func__, + periph_id); + return -1; + } + + return 0; +} + +int clock_set_mshci(enum periph_id peripheral) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + u32 *addr; + unsigned int clock; + unsigned int tmp; + unsigned int i; + + /* get mpll clock */ + clock = get_pll_clk(MPLL) / 1000000; + + /* + * CLK_DIV_FSYS1 + * MMC0_PRE_RATIO [15:8], MMC0_RATIO [3:0] + * CLK_DIV_FSYS2 + * MMC2_PRE_RATIO [15:8], MMC2_RATIO [3:0] + */ + switch (peripheral) { + case PERIPH_ID_SDMMC0: + addr = &clk->div_fsys1; + break; + case PERIPH_ID_SDMMC2: + addr = &clk->div_fsys2; + break; + default: + printk(BIOS_DEBUG, "invalid peripheral\n"); + return -1; + } + tmp = readl(addr) & ~0xff0f; + for (i = 0; i <= 0xf; i++) { + if ((clock / (i + 1)) <= 400) { + writel(tmp | i << 0, addr); + break; + } + } + return 0; +} + +int clock_epll_set_rate(unsigned long rate) +{ + unsigned int epll_con, epll_con_k; + unsigned int i; + unsigned int lockcnt; + unsigned int start; + struct exynos5_clock *clk = + samsung_get_base_clock(); + + epll_con = readl(&clk->epll_con0); + epll_con &= ~((EPLL_CON0_LOCK_DET_EN_MASK << + EPLL_CON0_LOCK_DET_EN_SHIFT) | + EPLL_CON0_MDIV_MASK << EPLL_CON0_MDIV_SHIFT | + EPLL_CON0_PDIV_MASK << EPLL_CON0_PDIV_SHIFT | + EPLL_CON0_SDIV_MASK << EPLL_CON0_SDIV_SHIFT); + + for (i = 0; i < ARRAY_SIZE(epll_div); i++) { + if (epll_div[i].freq_out == rate) + break; + } + + if (i == ARRAY_SIZE(epll_div)) + return -1; + + epll_con_k = epll_div[i].k_dsm << 0; + epll_con |= epll_div[i].en_lock_det << EPLL_CON0_LOCK_DET_EN_SHIFT; + epll_con |= epll_div[i].m_div << EPLL_CON0_MDIV_SHIFT; + epll_con |= epll_div[i].p_div << EPLL_CON0_PDIV_SHIFT; + epll_con |= epll_div[i].s_div << EPLL_CON0_SDIV_SHIFT; + + /* + * Required period ( in cycles) to genarate a stable clock output. + * The maximum clock time can be up to 3000 * PDIV cycles of PLLs + * frequency input (as per spec) + */ + lockcnt = 3000 * epll_div[i].p_div; + + writel(lockcnt, &clk->epll_lock); + writel(epll_con, &clk->epll_con0); + writel(epll_con_k, &clk->epll_con1); + + start = get_timer(0); + + while (!(readl(&clk->epll_con0) & + (0x1 << EXYNOS5_EPLLCON0_LOCKED_SHIFT))) { + if (get_timer(start) > TIMEOUT_EPLL_LOCK) { + printk(BIOS_DEBUG, "%s: Timeout waiting for EPLL lock\n", __func__); + return -1; + } + } + + return 0; +} + +void clock_select_i2s_clk_source(void) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + + clrsetbits_le32(&clk->src_peric1, AUDIO1_SEL_MASK, + (CLK_SRC_SCLK_EPLL)); +} + +int clock_set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq) +{ + struct exynos5_clock *clk = + samsung_get_base_clock(); + unsigned int div ; + + if ((dst_frq == 0) || (src_frq == 0)) { + printk(BIOS_DEBUG, "%s: Invalid requency input for prescaler\n", __func__); + printk(BIOS_DEBUG, "src frq = %d des frq = %d ", src_frq, dst_frq); + return -1; + } + + div = (src_frq / dst_frq); + if (div > AUDIO_1_RATIO_MASK) { + printk(BIOS_DEBUG, "%s: Frequency ratio is out of range\n", __func__); + printk(BIOS_DEBUG, "src frq = %d des frq = %d ", src_frq, dst_frq); + return -1; + } + clrsetbits_le32(&clk->div_peric4, AUDIO_1_RATIO_MASK, + (div & AUDIO_1_RATIO_MASK)); + return 0; +} diff --git a/src/cpu/samsung/exynos5420/clock_init.c b/src/cpu/samsung/exynos5420/clock_init.c new file mode 100644 index 0000000..2986cab --- /dev/null +++ b/src/cpu/samsung/exynos5420/clock_init.c @@ -0,0 +1,445 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Clock setup for SMDK5420 board based on EXYNOS5 */ + +#include <console/console.h> +#include <delay.h> +#include "clk.h" +#include "cpu.h" +#include "dp.h" +#include "setup.h" + +void system_clock_init(struct mem_timings *mem, + struct arm_clk_ratios *arm_clk_ratio) +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + struct exynos5_mct_regs *mct_regs = + (struct exynos5_mct_regs *)EXYNOS5_MULTI_CORE_TIMER_BASE; + u32 val, tmp; + + /* Turn on the MCT as early as possible. */ + mct_regs->g_tcon |= (1 << 8); + + clrbits_le32(&clk->src_cpu, MUX_APLL_SEL_MASK); + do { + val = readl(&clk->mux_stat_cpu); + } while ((val | MUX_APLL_SEL_MASK) != val); + + clrbits_le32(&clk->src_core1, MUX_MPLL_SEL_MASK); + do { + val = readl(&clk->mux_stat_core1); + } while ((val | MUX_MPLL_SEL_MASK) != val); + + clrbits_le32(&clk->src_top2, MUX_CPLL_SEL_MASK); + clrbits_le32(&clk->src_top2, MUX_EPLL_SEL_MASK); + clrbits_le32(&clk->src_top2, MUX_VPLL_SEL_MASK); + clrbits_le32(&clk->src_top2, MUX_GPLL_SEL_MASK); + tmp = MUX_CPLL_SEL_MASK | MUX_EPLL_SEL_MASK | MUX_VPLL_SEL_MASK + | MUX_GPLL_SEL_MASK; + do { + val = readl(&clk->mux_stat_top2); + } while ((val | tmp) != val); + + clrbits_le32(&clk->src_cdrex, MUX_BPLL_SEL_MASK); + do { + val = readl(&clk->mux_stat_cdrex); + } while ((val | MUX_BPLL_SEL_MASK) != val); + + /* PLL locktime */ + writel(APLL_LOCK_VAL, &clk->apll_lock); + + writel(MPLL_LOCK_VAL, &clk->mpll_lock); + + writel(BPLL_LOCK_VAL, &clk->bpll_lock); + + writel(CPLL_LOCK_VAL, &clk->cpll_lock); + + writel(GPLL_LOCK_VAL, &clk->gpll_lock); + + writel(EPLL_LOCK_VAL, &clk->epll_lock); + + writel(VPLL_LOCK_VAL, &clk->vpll_lock); + + writel(CLK_REG_DISABLE, &clk->pll_div2_sel); + + writel(MUX_HPM_SEL_MASK, &clk->src_cpu); + do { + val = readl(&clk->mux_stat_cpu); + } while ((val | HPM_SEL_SCLK_MPLL) != val); + + val = arm_clk_ratio->arm2_ratio << 28 + | arm_clk_ratio->apll_ratio << 24 + | arm_clk_ratio->pclk_dbg_ratio << 20 + | arm_clk_ratio->atb_ratio << 16 + | arm_clk_ratio->periph_ratio << 12 + | arm_clk_ratio->acp_ratio << 8 + | arm_clk_ratio->cpud_ratio << 4 + | arm_clk_ratio->arm_ratio; + writel(val, &clk->div_cpu0); + do { + val = readl(&clk->div_stat_cpu0); + } while (0 != val); + + writel(CLK_DIV_CPU1_VAL, &clk->div_cpu1); + do { + val = readl(&clk->div_stat_cpu1); + } while (0 != val); + + /* Set APLL */ + writel(APLL_CON1_VAL, &clk->apll_con1); + val = set_pll(arm_clk_ratio->apll_mdiv, arm_clk_ratio->apll_pdiv, + arm_clk_ratio->apll_sdiv); + writel(val, &clk->apll_con0); + while ((readl(&clk->apll_con0) & APLL_CON0_LOCKED) == 0) + ; + + /* Set MPLL */ + writel(MPLL_CON1_VAL, &clk->mpll_con1); + val = set_pll(mem->mpll_mdiv, mem->mpll_pdiv, mem->mpll_sdiv); + writel(val, &clk->mpll_con0); + while ((readl(&clk->mpll_con0) & MPLL_CON0_LOCKED) == 0) + ; + + /* + * Configure MUX_MPLL_FOUT to choose the direct clock source + * path and avoid the fixed DIV/2 block to save power + */ + setbits_le32(&clk->pll_div2_sel, MUX_MPLL_FOUT_SEL); + + /* Set BPLL */ + if (mem->use_bpll) { + writel(BPLL_CON1_VAL, &clk->bpll_con1); + val = set_pll(mem->bpll_mdiv, mem->bpll_pdiv, mem->bpll_sdiv); + writel(val, &clk->bpll_con0); + while ((readl(&clk->bpll_con0) & BPLL_CON0_LOCKED) == 0) + ; + + setbits_le32(&clk->pll_div2_sel, MUX_BPLL_FOUT_SEL); + } + + /* Set CPLL */ + writel(CPLL_CON1_VAL, &clk->cpll_con1); + val = set_pll(mem->cpll_mdiv, mem->cpll_pdiv, mem->cpll_sdiv); + writel(val, &clk->cpll_con0); + while ((readl(&clk->cpll_con0) & CPLL_CON0_LOCKED) == 0) + ; + + /* Set GPLL */ + writel(GPLL_CON1_VAL, &clk->gpll_con1); + val = set_pll(mem->gpll_mdiv, mem->gpll_pdiv, mem->gpll_sdiv); + writel(val, &clk->gpll_con0); + while ((readl(&clk->gpll_con0) & GPLL_CON0_LOCKED) == 0) + ; + + /* Set EPLL */ + writel(EPLL_CON2_VAL, &clk->epll_con2); + writel(EPLL_CON1_VAL, &clk->epll_con1); + val = set_pll(mem->epll_mdiv, mem->epll_pdiv, mem->epll_sdiv); + writel(val, &clk->epll_con0); + while ((readl(&clk->epll_con0) & EPLL_CON0_LOCKED) == 0) + ; + + /* Set VPLL */ + writel(VPLL_CON2_VAL, &clk->vpll_con2); + writel(VPLL_CON1_VAL, &clk->vpll_con1); + val = set_pll(mem->vpll_mdiv, mem->vpll_pdiv, mem->vpll_sdiv); + writel(val, &clk->vpll_con0); + while ((readl(&clk->vpll_con0) & VPLL_CON0_LOCKED) == 0) + ; + + writel(CLK_SRC_CORE0_VAL, &clk->src_core0); + writel(CLK_DIV_CORE0_VAL, &clk->div_core0); + while (readl(&clk->div_stat_core0) != 0) + ; + + writel(CLK_DIV_CORE1_VAL, &clk->div_core1); + while (readl(&clk->div_stat_core1) != 0) + ; + + writel(CLK_DIV_SYSRGT_VAL, &clk->div_sysrgt); + while (readl(&clk->div_stat_sysrgt) != 0) + ; + + writel(CLK_DIV_ACP_VAL, &clk->div_acp); + while (readl(&clk->div_stat_acp) != 0) + ; + + writel(CLK_DIV_SYSLFT_VAL, &clk->div_syslft); + while (readl(&clk->div_stat_syslft) != 0) + ; + + writel(CLK_SRC_TOP0_VAL, &clk->src_top0); + writel(CLK_SRC_TOP1_VAL, &clk->src_top1); + writel(TOP2_VAL, &clk->src_top2); + writel(CLK_SRC_TOP3_VAL, &clk->src_top3); + + writel(CLK_DIV_TOP0_VAL, &clk->div_top0); + while (readl(&clk->div_stat_top0)) + ; + + writel(CLK_DIV_TOP1_VAL, &clk->div_top1); + while (readl(&clk->div_stat_top1)) + ; + + writel(CLK_SRC_LEX_VAL, &clk->src_lex); + while (1) { + val = readl(&clk->mux_stat_lex); + if (val == (val | 1)) + break; + } + + writel(CLK_DIV_LEX_VAL, &clk->div_lex); + while (readl(&clk->div_stat_lex)) + ; + + writel(CLK_DIV_R0X_VAL, &clk->div_r0x); + while (readl(&clk->div_stat_r0x)) + ; + + writel(CLK_DIV_R0X_VAL, &clk->div_r0x); + while (readl(&clk->div_stat_r0x)) + ; + + writel(CLK_DIV_R1X_VAL, &clk->div_r1x); + while (readl(&clk->div_stat_r1x)) + ; + + if (mem->use_bpll) { + writel(MUX_BPLL_SEL_MASK | MUX_MCLK_CDREX_SEL | + MUX_MCLK_DPHY_SEL, &clk->src_cdrex); + } else { + writel(CLK_REG_DISABLE, &clk->src_cdrex); + } + + writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex); + while (readl(&clk->div_stat_cdrex)) + ; + + val = readl(&clk->src_cpu); + val |= CLK_SRC_CPU_VAL; + writel(val, &clk->src_cpu); + + val = readl(&clk->src_top2); + val |= CLK_SRC_TOP2_VAL; + writel(val, &clk->src_top2); + + val = readl(&clk->src_core1); + val |= CLK_SRC_CORE1_VAL; + writel(val, &clk->src_core1); + + writel(CLK_SRC_FSYS0_VAL, &clk->src_fsys); + writel(CLK_DIV_FSYS0_VAL, &clk->div_fsys0); + while (readl(&clk->div_stat_fsys0)) + ; + + writel(CLK_REG_DISABLE, &clk->clkout_cmu_cpu); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_core); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_acp); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_top); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_lex); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_r0x); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_r1x); + writel(CLK_REG_DISABLE, &clk->clkout_cmu_cdrex); + + writel(CLK_SRC_PERIC0_VAL, &clk->src_peric0); + writel(CLK_DIV_PERIC0_VAL, &clk->div_peric0); + + writel(CLK_SRC_PERIC1_VAL, &clk->src_peric1); + writel(CLK_DIV_PERIC1_VAL, &clk->div_peric1); + writel(CLK_DIV_PERIC2_VAL, &clk->div_peric2); + writel(SCLK_SRC_ISP_VAL, &clk->sclk_src_isp); + writel(SCLK_DIV_ISP_VAL, &clk->sclk_div_isp); + writel(CLK_DIV_ISP0_VAL, &clk->div_isp0); + writel(CLK_DIV_ISP1_VAL, &clk->div_isp1); + writel(CLK_DIV_ISP2_VAL, &clk->div_isp2); + + /* FIMD1 SRC CLK SELECTION */ + writel(CLK_SRC_DISP1_0_VAL, &clk->src_disp1_0); + + val = MMC2_PRE_RATIO_VAL << MMC2_PRE_RATIO_OFFSET + | MMC2_RATIO_VAL << MMC2_RATIO_OFFSET + | MMC3_PRE_RATIO_VAL << MMC3_PRE_RATIO_OFFSET + | MMC3_RATIO_VAL << MMC3_RATIO_OFFSET; + writel(val, &clk->div_fsys2); +} + +void clock_gate(void) +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + + /* CLK_GATE_IP_SYSRGT */ + clrbits_le32(&clk->gate_ip_sysrgt, CLK_C2C_MASK); + + /* CLK_GATE_IP_ACP */ + clrbits_le32(&clk->gate_ip_acp, CLK_SMMUG2D_MASK | + CLK_SMMUSSS_MASK | + CLK_SMMUMDMA_MASK | + CLK_ID_REMAPPER_MASK | + CLK_G2D_MASK | + CLK_SSS_MASK | + CLK_MDMA_MASK | + CLK_SECJTAG_MASK); + + /* CLK_GATE_BUS_SYSLFT */ + clrbits_le32(&clk->gate_bus_syslft, CLK_EFCLK_MASK); + + /* CLK_GATE_IP_ISP0 */ + clrbits_le32(&clk->gate_ip_isp0, CLK_UART_ISP_MASK | + CLK_WDT_ISP_MASK | + CLK_PWM_ISP_MASK | + CLK_MTCADC_ISP_MASK | + CLK_I2C1_ISP_MASK | + CLK_I2C0_ISP_MASK | + CLK_MPWM_ISP_MASK | + CLK_MCUCTL_ISP_MASK | + CLK_INT_COMB_ISP_MASK | + CLK_SMMU_MCUISP_MASK | + CLK_SMMU_SCALERP_MASK | + CLK_SMMU_SCALERC_MASK | + CLK_SMMU_FD_MASK | + CLK_SMMU_DRC_MASK | + CLK_SMMU_ISP_MASK | + CLK_GICISP_MASK | + CLK_ARM9S_MASK | + CLK_MCUISP_MASK | + CLK_SCALERP_MASK | + CLK_SCALERC_MASK | + CLK_FD_MASK | + CLK_DRC_MASK | + CLK_ISP_MASK); + + /* CLK_GATE_IP_ISP1 */ + clrbits_le32(&clk->gate_ip_isp1, CLK_SPI1_ISP_MASK | + CLK_SPI0_ISP_MASK | + CLK_SMMU3DNR_MASK | + CLK_SMMUDIS1_MASK | + CLK_SMMUDIS0_MASK | + CLK_SMMUODC_MASK | + CLK_3DNR_MASK | + CLK_DIS_MASK | + CLK_ODC_MASK); + + /* CLK_GATE_SCLK_ISP */ + clrbits_le32(&clk->gate_sclk_isp, SCLK_MPWM_ISP_MASK); + + /* CLK_GATE_IP_GSCL */ + clrbits_le32(&clk->gate_ip_gscl, CLK_SMMUFIMC_LITE2_MASK | + CLK_SMMUFIMC_LITE1_MASK | + CLK_SMMUFIMC_LITE0_MASK | + CLK_SMMUGSCL3_MASK | + CLK_SMMUGSCL2_MASK | + CLK_SMMUGSCL1_MASK | + CLK_SMMUGSCL0_MASK | + CLK_GSCL_WRAP_B_MASK | + CLK_GSCL_WRAP_A_MASK | + CLK_CAMIF_TOP_MASK | + CLK_GSCL3_MASK | + CLK_GSCL2_MASK | + CLK_GSCL1_MASK | + CLK_GSCL0_MASK); + + /* CLK_GATE_IP_DISP1 */ + clrbits_le32(&clk->gate_ip_disp1, CLK_SMMUTVX_MASK | + CLK_ASYNCTVX_MASK | + CLK_HDMI_MASK | + CLK_MIXER_MASK | + CLK_DSIM1_MASK); + + /* CLK_GATE_IP_MFC */ + clrbits_le32(&clk->gate_ip_mfc, CLK_SMMUMFCR_MASK | + CLK_SMMUMFCL_MASK | + CLK_MFC_MASK); + + /* CLK_GATE_IP_GEN */ + clrbits_le32(&clk->gate_ip_gen, CLK_SMMUMDMA1_MASK | + CLK_SMMUJPEG_MASK | + CLK_SMMUROTATOR_MASK | + CLK_MDMA1_MASK | + CLK_JPEG_MASK | + CLK_ROTATOR_MASK); + + /* CLK_GATE_IP_FSYS */ + clrbits_le32(&clk->gate_ip_fsys, CLK_WDT_IOP_MASK | + CLK_SMMUMCU_IOP_MASK | + CLK_SATA_PHY_I2C_MASK | + CLK_SATA_PHY_CTRL_MASK | + CLK_MCUCTL_MASK | + CLK_NFCON_MASK | + CLK_SMMURTIC_MASK | + CLK_RTIC_MASK | + CLK_MIPI_HSI_MASK | + CLK_USBOTG_MASK | + CLK_SATA_MASK | + CLK_PDMA1_MASK | + CLK_PDMA0_MASK | + CLK_MCU_IOP_MASK); + + /* CLK_GATE_IP_PERIC */ + clrbits_le32(&clk->gate_ip_peric, CLK_HS_I2C3_MASK | + CLK_HS_I2C2_MASK | + CLK_HS_I2C1_MASK | + CLK_HS_I2C0_MASK | + CLK_AC97_MASK | + CLK_SPDIF_MASK | + CLK_PCM2_MASK | + CLK_PCM1_MASK | + CLK_I2S2_MASK | + CLK_SPI2_MASK | + CLK_SPI0_MASK); + + /* + * CLK_GATE_IP_PERIS + * Note: Keep CHIPID_APBIF ungated to ensure reading the product ID + * register (PRO_ID) works correctly when the OS kernel determines + * which chip it is running on. + */ + clrbits_le32(&clk->gate_ip_peris, CLK_RTC_MASK | + CLK_TZPC9_MASK | + CLK_TZPC8_MASK | + CLK_TZPC7_MASK | + CLK_TZPC6_MASK | + CLK_TZPC5_MASK | + CLK_TZPC4_MASK | + CLK_TZPC3_MASK | + CLK_TZPC2_MASK | + CLK_TZPC1_MASK | + CLK_TZPC0_MASK); + + /* CLK_GATE_BLOCK */ + clrbits_le32(&clk->gate_block, CLK_ACP_MASK); + + /* CLK_GATE_IP_CDREX */ + clrbits_le32(&clk->gate_ip_cdrex, CLK_DPHY0_MASK | + CLK_DPHY1_MASK | + CLK_TZASC_DRBXR_MASK); + +} + +void clock_init_dp_clock(void) +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + + /* DP clock enable */ + setbits_le32(&clk->gate_ip_disp1, CLK_GATE_DP1_ALLOW); + + /* We run DP at 267 Mhz */ + setbits_le32(&clk->div_disp1_0, CLK_DIV_DISP1_0_FIMD1); +} + diff --git a/src/cpu/samsung/exynos5420/cpu.c b/src/cpu/samsung/exynos5420/cpu.c new file mode 100644 index 0000000..0abc0a3 --- /dev/null +++ b/src/cpu/samsung/exynos5420/cpu.c @@ -0,0 +1,181 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdlib.h> +#include <string.h> +#include <stddef.h> +#include <delay.h> +#include <console/console.h> +#include <device/device.h> +#include <cbmem.h> +#include <arch/cache.h> +#include "fimd.h" +#include "dp-core.h" +#include "cpu.h" +#include "clk.h" +#include "chip.h" + +#define RAM_BASE_KB (CONFIG_SYS_SDRAM_BASE >> 10) +#define RAM_SIZE_KB (CONFIG_DRAM_SIZE_MB << 10UL) + +static unsigned int cpu_id; +static unsigned int cpu_rev; + +static void set_cpu_id(void) +{ + cpu_id = readl((void *)EXYNOS_PRO_ID); + cpu_id = (0xC000 | ((cpu_id & 0x00FFF000) >> 12)); + + /* + * 0xC200: EXYNOS4210 EVT0 + * 0xC210: EXYNOS4210 EVT1 + */ + if (cpu_id == 0xC200) { + cpu_id |= 0x10; + cpu_rev = 0; + } else if (cpu_id == 0xC210) { + cpu_rev = 1; + } +} + +/* we distinguish a display port device from a raw graphics device + * because there are dramatic differences in startup depending on + * graphics usage. To make startup fast and easier to understand and + * debug we explicitly name this common case. The alternate approach, + * involving lots of machine and callbacks, is hard to debug and + * verify. + */ +static void exynos_displayport_init(device_t dev) +{ + int ret; + struct cpu_samsung_exynos5420_config *conf = dev->chip_info; + /* put these on the stack. If, at some point, we want to move + * this code to a pre-ram stage, it will be much easier. + */ + vidinfo_t vi; + struct exynos5_fimd_panel panel; + unsigned long int fb_size; + u32 lcdbase; + + memset(&vi, 0, sizeof(vi)); + memset(&panel, 0, sizeof(panel)); + + panel.is_dp = 1; /* Display I/F is eDP */ + /* while it is true that we did a memset to zero, + * we leave some 'set to zero' entries here to make + * it clear what's going on. Graphics is confusing. + */ + panel.is_mipi = 0; + panel.fixvclk = 0; + panel.ivclk = 0; + panel.clkval_f = conf->clkval_f; + panel.upper_margin = conf->upper_margin; + panel.lower_margin = conf->lower_margin; + panel.vsync = conf->vsync; + panel.left_margin = conf->left_margin; + panel.right_margin = conf->right_margin; + panel.hsync = conf->hsync; + panel.xres = conf->xres; + panel.yres = conf->yres; + + vi.vl_col = conf->xres; + vi.vl_row = conf->yres; + vi.vl_bpix = conf->bpp; + /* + * The size is a magic number from hardware. Allocate enough for the + * frame buffer and color map. + */ + fb_size = conf->xres * conf->yres * (conf->bpp / 8); + lcdbase = (uintptr_t)cbmem_add(CBMEM_ID_CONSOLE, fb_size + 64*KiB); + printk(BIOS_SPEW, "LCD colormap base is %p\n", (void *)(lcdbase)); + mmio_resource(dev, 0, lcdbase/KiB, 64); + vi.cmap = (void *)lcdbase; + + /* + * We need to clean and invalidate the framebuffer region and disable + * caching as well. We assume that our dcache <--> memory address + * space is identity-mapped in 1MB chunks, so align accordingly. + * + * Note: We may want to do something clever to ensure the framebuffer + * region is aligned such that we don't change dcache policy for other + * stuff inadvertantly. + * + * FIXME: Is disabling/re-enabling the MMU entirely necessary? + */ + uint32_t lower = ALIGN_DOWN(lcdbase, MiB); + uint32_t upper = ALIGN_UP(lcdbase + fb_size + 64*KiB, MiB); + dcache_clean_invalidate_by_mva(lower, upper - lower); + dcache_mmu_disable(); + mmu_config_range(lower/MiB, (upper - lower)/MiB, DCACHE_OFF); + dcache_mmu_enable(); + + lcdbase += 64*KiB; + mmio_resource(dev, 1, lcdbase/KiB, (fb_size + KiB - 1)/KiB); + printk(BIOS_DEBUG, + "Initializing Exynos VGA, base %p\n", (void *)lcdbase); + memset((void *)lcdbase, 0, fb_size); /* clear the framebuffer */ + ret = lcd_ctrl_init(&vi, &panel, (void *)lcdbase); +} + +static void cpu_init(device_t dev) +{ + exynos_displayport_init(dev); + ram_resource(dev, 0, RAM_BASE_KB, RAM_SIZE_KB); + + set_cpu_id(); + + printk(BIOS_INFO, "CPU: S5P%X @ %ldMHz\n", + cpu_id, get_arm_clk() / (1024*1024)); +} + +static void cpu_noop(device_t dev) +{ +} + +static struct device_operations cpu_ops = { + .read_resources = cpu_noop, + .set_resources = cpu_noop, + .enable_resources = cpu_init, + .init = cpu_noop, + .scan_bus = 0, +}; + +static void enable_exynos5420_dev(device_t dev) +{ + dev->ops = &cpu_ops; +} + +struct chip_operations cpu_samsung_exynos5420_ops = { + CHIP_NAME("CPU Samsung Exynos 5420") + .enable_dev = enable_exynos5420_dev, +}; + +void exynos5420_config_l2_cache(void) +{ + uint32_t val; + + /* + * Bit 9 - L2 tag RAM setup (1 cycle) + * Bits 8:6 - L2 tag RAM latency (3 cycles) + * Bit 5 - L2 data RAM setup (1 cycle) + * Bits 2:0 - L2 data RAM latency (3 cycles) + */ + val = (1 << 9) | (0x2 << 6) | (1 << 5) | (0x2); + write_l2ctlr(val); +} diff --git a/src/cpu/samsung/exynos5420/cpu.h b/src/cpu/samsung/exynos5420/cpu.h new file mode 100644 index 0000000..62ff424 --- /dev/null +++ b/src/cpu/samsung/exynos5420/cpu.h @@ -0,0 +1,130 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_CPU_H +#define CPU_SAMSUNG_EXYNOS5420_CPU_H + +#include <arch/io.h> + +#define DEVICE_NOT_AVAILABLE 0 + +#define EXYNOS_PRO_ID 0x10000000 + +/* Address of address of function that copys data from SD or MMC */ +#define EXYNOS_COPY_MMC_FNPTR_ADDR 0x02020030 + +/* Address of address of function that copys data from SPI */ +#define EXYNOS_COPY_SPI_FNPTR_ADDR 0x02020058 + +/* Address of address of function that copys data through USB */ +#define EXYNOS_COPY_USB_FNPTR_ADDR 0x02020070 + +/* Boot mode values */ +#define EXYNOS_USB_SECONDARY_BOOT 0xfeed0002 + +#define EXYNOS_IRAM_SECONDARY_BASE 0x02020018 + +#define EXYNOS_I2C_SPACING 0x10000 + +/* EXYNOS5 */ +#define EXYNOS5_GPIO_PART6_BASE 0x03860000 /* Z<6:0> */ +#define EXYNOS5_PRO_ID 0x10000000 +#define EXYNOS5_CLOCK_BASE 0x10010000 +#define EXYNOS5_POWER_BASE 0x10040000 +#define EXYNOS5_SWRESET 0x10040400 +#define EXYNOS5_SYSREG_BASE 0x10050000 +#define EXYNOS5_TZPC1_DECPROT1SET 0x10110810 +#define EXYNOS5_MULTI_CORE_TIMER_BASE 0x101C0000 +#define EXYNOS5_WATCHDOG_BASE 0x101D0000 +#define EXYNOS5_ACE_SFR_BASE 0x10830000 +#define EXYNOS5_DMC_PHY0_BASE 0x10C00000 +#define EXYNOS5_DMC_PHY1_BASE 0x10C10000 +#define EXYNOS5_GPIO_PART4_BASE 0x10D10000 /* V00..V37 */ +#define EXYNOS5_GPIO_PART5_BASE 0x10D100C0 /* V40..V47 */ +#define EXYNOS5_DMC_CTRL_BASE 0x10DD0000 +#define EXYNOS5_GPIO_PART1_BASE 0x11400000 /* A00..Y67 */ +#define EXYNOS5_GPIO_PART2_BASE 0x11400c00 /* X00..X37 */ +#define EXYNOS5_USB_HOST_EHCI_BASE 0x12110000 +#define EXYNOS5_USBPHY_BASE 0x12130000 +#define EXYNOS5_USBOTG_BASE 0x12140000 + +#define EXYNOS5_MMC_BASE 0x12200000 +#define EXYNOS5_MSHC_BASE 0x12240000 + +#define EXYNOS5_SROMC_BASE 0x12250000 +#define EXYNOS5_UART_BASE 0x12C00000 + +#define EXYNOS5_SPI1_BASE 0x12D30000 +#define EXYNOS5_I2C_BASE 0x12C60000 +#define EXYNOS5_SPI_BASE 0x12D20000 +#define EXYNOS5_PWMTIMER_BASE 0x12DD0000 +#define EXYNOS5_SPI_ISP_BASE 0x131A0000 +#define EXYNOS5_I2S_BASE 0x12D60000 +#define EXYNOS5_GPIO_PART3_BASE 0x13400000 /* E00..H17 */ +#define EXYNOS5_FIMD_BASE 0x14400000 +#define EXYNOS5_DISP1_CTRL_BASE 0x14420000 +#define EXYNOS5_MIPI_DSI1_BASE 0x14500000 + +#define EXYNOS5_ADC_BASE DEVICE_NOT_AVAILABLE +#define EXYNOS5_MODEM_BASE DEVICE_NOT_AVAILABLE + +/* Compatibility defines */ +#define EXYNOS_POWER_BASE EXYNOS5_POWER_BASE + +/* Marker values stored at the bottom of IRAM stack by SPL */ +#define EXYNOS5_SPL_MARKER 0xb004f1a9 /* hexspeak word: bootflag */ + +/* Distance between each Trust Zone PC register set */ +#define TZPC_BASE_OFFSET 0x10000 + +#define samsung_get_base_adc() ((struct exynos5_adc *)EXYNOS5_ADC_BASE) +#define samsung_get_base_clock() ((struct exynos5_clock *)EXYNOS5_CLOCK_BASE) +#define samsung_get_base_ace_sfr() ((struct exynos5_ace_sfr *)EXYNOS5_ACE_SFR_BASE) +#define samsung_get_base_dsim() ((struct exynos5_dsim *)EXYNOS5_MIPI_DSI1_BASE) +#define samsung_get_base_disp_ctrl() ((struct exynos5_disp_ctrl *)EXYNOS5_DISP1_CTRL_BASE) +#define samsung_get_base_fimd() ((struct exynos5_fimd *)EXYNOS5_FIMD_BASE) +#define samsung_get_base_pro_id() ((struct exynos5_pro_id *)EXYNOS5_PRO_ID) + +#define samsung_get_base_mmc() ((struct exynos5_mmc *)EXYNOS5_MMC_BASE) +#define samsung_get_base_mshci() ((struct exynos5_mshci *)EXYNOS5_MSHC_BASE) + +#define samsung_get_base_modem() ((struct exynos5_modem *)EXYNOS5_MODEM_BASE) +#define samsung_get_base_sromc() ((struct exynos5_sromc *)EXYNOS5_SROMC_BASE) +#define samsung_get_base_swreset() ((struct exynos5_swreset *)EXYNOS5_SWRESET) +#define samsung_get_base_sysreg() ((struct exynos5_sysreg *)EXYNOS5_SYSREG_BASE) +#define samsung_get_base_timer() ((struct s5p_timer *)EXYNOS5_PWMTIMER_BASE) +#define samsung_get_base_uart() ((struct exynos5_uart *)EXYNOS5_UART_BASE) +#define samsung_get_base_usb_phy() ((struct exynos5_usb_phy *)EXYNOS5_USBPHY_BASE) +#define samsung_get_base_usb_otg() ((struct exynos5_usb_otg *)EXYNOS5_USBOTG_BASE) +#define samsung_get_base_watchdog() ((struct exynos5_watchdog *)EXYNOS5_WATCHDOG_BASE) +#define samsung_get_base_power() ((struct exynos5_power *)EXYNOS5_POWER_BASE) +#define samsung_get_base_i2s() ((struct exynos5_i2s *)EXYNOS5_I2S_BASE) +#define samsung_get_base_spi1() ((struct exynos5_spi1 *)EXYNOS5_SPI1_BASE) +#define samsung_get_base_i2c() ((struct exynos5_i2c *)EXYNOS5_I2C_BASE) +#define samsung_get_base_spi() ((struct exynos5_spi *)EXYNOS5_SPI_BASE) +#define samsung_get_base_spi_isp() ((struct exynos5_spi_isp *)EXYNOS5_SPI_ISP_BASE) + +#define EXYNOS5_SPI_NUM_CONTROLLERS 5 +#define EXYNOS_I2C_MAX_CONTROLLERS 8 + +void exynos5420_config_l2_cache(void); + +extern struct tmu_info exynos5420_tmu_info; + +#endif /* _EXYNOS5420_CPU_H */ diff --git a/src/cpu/samsung/exynos5420/dmc.h b/src/cpu/samsung/exynos5420/dmc.h new file mode 100644 index 0000000..cd5ff23 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dmc.h @@ -0,0 +1,343 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_DMC_H +#define CPU_SAMSUNG_EXYNOS5420_DMC_H + +#ifndef __ASSEMBLER__ +struct exynos5_dmc { + unsigned int concontrol; + unsigned int memcontrol; + unsigned int memconfig0; + unsigned int memconfig1; + unsigned int directcmd; + unsigned int prechconfig; + unsigned int phycontrol0; + unsigned char res1[0xc]; + unsigned int pwrdnconfig; + unsigned int timingpzq; + unsigned int timingref; + unsigned int timingrow; + unsigned int timingdata; + unsigned int timingpower; + unsigned int phystatus; + unsigned char res2[0x4]; + unsigned int chipstatus_ch0; + unsigned int chipstatus_ch1; + unsigned char res3[0x4]; + unsigned int mrstatus; + unsigned char res4[0x8]; + unsigned int qoscontrol0; + unsigned char resr5[0x4]; + unsigned int qoscontrol1; + unsigned char res6[0x4]; + unsigned int qoscontrol2; + unsigned char res7[0x4]; + unsigned int qoscontrol3; + unsigned char res8[0x4]; + unsigned int qoscontrol4; + unsigned char res9[0x4]; + unsigned int qoscontrol5; + unsigned char res10[0x4]; + unsigned int qoscontrol6; + unsigned char res11[0x4]; + unsigned int qoscontrol7; + unsigned char res12[0x4]; + unsigned int qoscontrol8; + unsigned char res13[0x4]; + unsigned int qoscontrol9; + unsigned char res14[0x4]; + unsigned int qoscontrol10; + unsigned char res15[0x4]; + unsigned int qoscontrol11; + unsigned char res16[0x4]; + unsigned int qoscontrol12; + unsigned char res17[0x4]; + unsigned int qoscontrol13; + unsigned char res18[0x4]; + unsigned int qoscontrol14; + unsigned char res19[0x4]; + unsigned int qoscontrol15; + unsigned char res20[0x14]; + unsigned int ivcontrol; + unsigned int wrtra_config; + unsigned int rdlvl_config; + unsigned char res21[0x8]; + unsigned int brbrsvconfig; + unsigned int brbqosconfig; + unsigned int membaseconfig0; + unsigned int membaseconfig1; + unsigned char res22[0xc]; + unsigned int wrlvl_config; + unsigned char res23[0xc]; + unsigned int perevcontrol; + unsigned int perev0config; + unsigned int perev1config; + unsigned int perev2config; + unsigned int perev3config; + unsigned char res24[0xdebc]; + unsigned int pmnc_ppc_a; + unsigned char res25[0xc]; + unsigned int cntens_ppc_a; + unsigned char res26[0xc]; + unsigned int cntenc_ppc_a; + unsigned char res27[0xc]; + unsigned int intens_ppc_a; + unsigned char res28[0xc]; + unsigned int intenc_ppc_a; + unsigned char res29[0xc]; + unsigned int flag_ppc_a; + unsigned char res30[0xac]; + unsigned int ccnt_ppc_a; + unsigned char res31[0xc]; + unsigned int pmcnt0_ppc_a; + unsigned char res32[0xc]; + unsigned int pmcnt1_ppc_a; + unsigned char res33[0xc]; + unsigned int pmcnt2_ppc_a; + unsigned char res34[0xc]; + unsigned int pmcnt3_ppc_a; +}; + +struct exynos5_phy_control { + unsigned int phy_con0; + unsigned int phy_con1; + unsigned int phy_con2; + unsigned int phy_con3; + unsigned int phy_con4; + unsigned char res1[4]; + unsigned int phy_con6; + unsigned char res2[4]; + unsigned int phy_con8; + unsigned int phy_con9; + unsigned int phy_con10; + unsigned char res3[4]; + unsigned int phy_con12; + unsigned int phy_con13; + unsigned int phy_con14; + unsigned int phy_con15; + unsigned int phy_con16; + unsigned char res4[4]; + unsigned int phy_con17; + unsigned int phy_con18; + unsigned int phy_con19; + unsigned int phy_con20; + unsigned int phy_con21; + unsigned int phy_con22; + unsigned int phy_con23; + unsigned int phy_con24; + unsigned int phy_con25; + unsigned int phy_con26; + unsigned int phy_con27; + unsigned int phy_con28; + unsigned int phy_con29; + unsigned int phy_con30; + unsigned int phy_con31; + unsigned int phy_con32; + unsigned int phy_con33; + unsigned int phy_con34; + unsigned int phy_con35; + unsigned int phy_con36; + unsigned int phy_con37; + unsigned int phy_con38; + unsigned int phy_con39; + unsigned int phy_con40; + unsigned int phy_con41; + unsigned int phy_con42; +}; + +enum ddr_mode { + DDR_MODE_DDR2, + DDR_MODE_DDR3, + DDR_MODE_LPDDR2, + DDR_MODE_LPDDR3, + + DDR_MODE_COUNT, +}; + +/* For reasons unknown, people are in the habit of taking a 32-bit + * field with 2 possible values and packing it with, say, 2 bits. A + * non-robust encoding, using only 2 bits of a 32-bit field, is + * incredibly difficult to deal with when things go wrong, because + * there are a lot of things that get expressed as 0, 1, or 2. If + * you're scanning with jtag or dumping memory it is really hard to + * tell when you've hit the beginning of the struct. So, let's be a + * bit smart here. First, while it's common to let the enum count + * entries for you, when there are two of them, we can do the + * counting. And, let's set the values to something we can easily scan + * for in memory. Since '1' and '2' are rather common, we pick + * something that's actually of some value when things go wrong. This + * setup motivated by a use case: something's going wrong and having a + * manuf name of '1' or '2' is completely useless! + */ +enum mem_manuf { + MEM_MANUF_AUTODETECT, + MEM_MANUF_ELPIDA = 0xe7b1da, + MEM_MANUF_SAMSUNG = 0x5a5096, + + MEM_MANUF_COUNT = 2, // fancy that. +}; + +enum { + MEM_TIMINGS_MSR_COUNT = 4, +}; + +#define DMC_INTERLEAVE_SIZE 0x1f + +/* CONCONTROL register fields */ +#define CONCONTROL_DFI_INIT_START_SHIFT 28 +#define CONCONTROL_RD_FETCH_SHIFT 12 +#define CONCONTROL_RD_FETCH_MASK (0x7 << CONCONTROL_RD_FETCH_SHIFT) +#define CONCONTROL_AREF_EN_SHIFT 5 + +/* PRECHCONFIG register field */ +#define PRECHCONFIG_TP_CNT_SHIFT 24 + +/* PWRDNCONFIG register field */ +#define PWRDNCONFIG_DPWRDN_CYC_SHIFT 0 +#define PWRDNCONFIG_DSREF_CYC_SHIFT 16 + +/* PHY_CON0 register fields */ +#define PHY_CON0_T_WRRDCMD_SHIFT 17 +#define PHY_CON0_T_WRRDCMD_MASK (0x7 << PHY_CON0_T_WRRDCMD_SHIFT) +#define PHY_CON0_CTRL_DDR_MODE_SHIFT 11 + +/* PHY_CON1 register fields */ +#define PHY_CON1_RDLVL_RDDATA_ADJ_SHIFT 0 + +/* PHY_CON12 register fields */ +#define PHY_CON12_CTRL_START_POINT_SHIFT 24 +#define PHY_CON12_CTRL_INC_SHIFT 16 +#define PHY_CON12_CTRL_FORCE_SHIFT 8 +#define PHY_CON12_CTRL_START_SHIFT 6 +#define PHY_CON12_CTRL_START_MASK (1 << PHY_CON12_CTRL_START_SHIFT) +#define PHY_CON12_CTRL_DLL_ON_SHIFT 5 +#define PHY_CON12_CTRL_DLL_ON_MASK (1 << PHY_CON12_CTRL_DLL_ON_SHIFT) +#define PHY_CON12_CTRL_REF_SHIFT 1 + +/* PHY_CON16 register fields */ +#define PHY_CON16_ZQ_MODE_DDS_SHIFT 24 +#define PHY_CON16_ZQ_MODE_DDS_MASK (0x7 << PHY_CON16_ZQ_MODE_DDS_SHIFT) + +#define PHY_CON16_ZQ_MODE_TERM_SHIFT 21 +#define PHY_CON16_ZQ_MODE_TERM_MASK (0x7 << PHY_CON16_ZQ_MODE_TERM_SHIFT) + +#define PHY_CON16_ZQ_MODE_NOTERM_MASK (1 << 19) + +/* PHY_CON42 register fields */ +#define PHY_CON42_CTRL_BSTLEN_SHIFT 8 +#define PHY_CON42_CTRL_BSTLEN_MASK (0xff << PHY_CON42_CTRL_BSTLEN_SHIFT) + +#define PHY_CON42_CTRL_RDLAT_SHIFT 0 +#define PHY_CON42_CTRL_RDLAT_MASK (0x1f << PHY_CON42_CTRL_RDLAT_SHIFT) + +/* These are the memory timings for a particular memory type and speed */ +struct mem_timings { + enum mem_manuf mem_manuf; /* Memory manufacturer */ + enum ddr_mode mem_type; /* Memory type */ + unsigned int frequency_mhz; /* Frequency of memory in MHz */ + + /* Here follow the timing parameters for the selected memory */ + uint8_t apll_mdiv; + uint8_t apll_pdiv; + uint8_t apll_sdiv; + uint8_t mpll_mdiv; + uint8_t mpll_pdiv; + uint8_t mpll_sdiv; + uint8_t cpll_mdiv; + uint8_t cpll_pdiv; + uint8_t cpll_sdiv; + uint8_t gpll_pdiv; + uint16_t gpll_mdiv; + uint8_t gpll_sdiv; + uint8_t epll_mdiv; + uint8_t epll_pdiv; + uint8_t epll_sdiv; + uint8_t vpll_mdiv; + uint8_t vpll_pdiv; + uint8_t vpll_sdiv; + uint8_t bpll_mdiv; + uint8_t bpll_pdiv; + uint8_t bpll_sdiv; + uint8_t use_bpll; /* 1 to use BPLL for cdrex, 0 to use MPLL */ + uint8_t pclk_cdrex_ratio; + unsigned int direct_cmd_msr[MEM_TIMINGS_MSR_COUNT]; + + unsigned int timing_ref; + unsigned int timing_row; + unsigned int timing_data; + unsigned int timing_power; + + /* DQS, DQ, DEBUG offsets */ + unsigned int phy0_dqs; + unsigned int phy1_dqs; + unsigned int phy0_dq; + unsigned int phy1_dq; + uint8_t phy0_tFS; + uint8_t phy1_tFS; + uint8_t phy0_pulld_dqs; + uint8_t phy1_pulld_dqs; + + uint8_t lpddr3_ctrl_phy_reset; + uint8_t ctrl_start_point; + uint8_t ctrl_inc; + uint8_t ctrl_start; + uint8_t ctrl_dll_on; + uint8_t ctrl_ref; + + uint8_t ctrl_force; + uint8_t ctrl_rdlat; + uint8_t ctrl_bstlen; + + uint8_t fp_resync; + uint8_t iv_size; + uint8_t dfi_init_start; + uint8_t aref_en; + + uint8_t rd_fetch; + + uint8_t zq_mode_dds; + uint8_t zq_mode_term; + uint8_t zq_mode_noterm; /* 1 to allow termination disable */ + + unsigned int memcontrol; + unsigned int memconfig; + + unsigned int membaseconfig0; + unsigned int membaseconfig1; + unsigned int prechconfig_tp_cnt; + unsigned int dpwrdn_cyc; + unsigned int dsref_cyc; + unsigned int concontrol; + /* Channel and Chip Selection */ + uint8_t dmc_channels; /* number of memory channels */ + uint8_t chips_per_channel; /* number of chips per channel */ + uint8_t chips_to_configure; /* number of chips to configure */ + uint8_t send_zq_init; /* 1 to send this command */ + unsigned int impedance; /* drive strength impedeance */ + uint8_t gate_leveling_enable; /* check gate leveling is enabled */ +}; + +/** + * Get the correct memory timings for our selected memory type and speed. + * + * @return pointer to the memory timings that we should use + */ +struct mem_timings *get_mem_timings(void); + +#endif +#endif diff --git a/src/cpu/samsung/exynos5420/dmc_common.c b/src/cpu/samsung/exynos5420/dmc_common.c new file mode 100644 index 0000000..3abc3d3 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dmc_common.c @@ -0,0 +1,183 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Mem setup common file for different types of DDR present on SMDK5420 boards. + */ + +#include <console/console.h> +#include <arch/io.h> +#include <delay.h> +#include "setup.h" +#include "dmc.h" +#include "clk.h" +#include "setup.h" + +#define ZQ_INIT_TIMEOUT 10000 + +int dmc_config_zq(struct mem_timings *mem, + struct exynos5_phy_control *phy0_ctrl, + struct exynos5_phy_control *phy1_ctrl) +{ + unsigned long val = 0; + int i; + + /* + * ZQ Calibration: + * Select Driver Strength, + * long calibration for manual calibration + */ + val = PHY_CON16_RESET_VAL; + val |= mem->zq_mode_dds << PHY_CON16_ZQ_MODE_DDS_SHIFT; + val |= mem->zq_mode_term << PHY_CON16_ZQ_MODE_TERM_SHIFT; + val |= ZQ_CLK_DIV_EN; + writel(val, &phy0_ctrl->phy_con16); + writel(val, &phy1_ctrl->phy_con16); + + /* Disable termination */ + if (mem->zq_mode_noterm) + val |= PHY_CON16_ZQ_MODE_NOTERM_MASK; + writel(val, &phy0_ctrl->phy_con16); + writel(val, &phy1_ctrl->phy_con16); + + /* ZQ_MANUAL_START: Enable */ + val |= ZQ_MANUAL_STR; + writel(val, &phy0_ctrl->phy_con16); + writel(val, &phy1_ctrl->phy_con16); + + /* ZQ_MANUAL_START: Disable */ + val &= ~ZQ_MANUAL_STR; + + /* + * Since we are manaully calibrating the ZQ values, + * we are looping for the ZQ_init to complete. + */ + i = ZQ_INIT_TIMEOUT; + while ((readl(&phy0_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { + udelay(1); + i--; + } + if (!i) + return -1; + writel(val, &phy0_ctrl->phy_con16); + + i = ZQ_INIT_TIMEOUT; + while ((readl(&phy1_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) { + udelay(1); + i--; + } + if (!i) + return -1; + writel(val, &phy1_ctrl->phy_con16); + + return 0; +} + +void update_reset_dll(struct exynos5_dmc *dmc, enum ddr_mode mode) +{ + unsigned long val; + + if (mode == DDR_MODE_DDR3) { + val = MEM_TERM_EN | PHY_TERM_EN | DMC_CTRL_SHGATE; + writel(val, &dmc->phycontrol0); + } + + /* Update DLL Information: Force DLL Resyncronization */ + val = readl(&dmc->phycontrol0); + val |= FP_RSYNC; + writel(val, &dmc->phycontrol0); + + /* Reset Force DLL Resyncronization */ + val = readl(&dmc->phycontrol0); + val &= ~FP_RSYNC; + writel(val, &dmc->phycontrol0); +} + +void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc) +{ + int channel, chip; + + for (channel = 0; channel < mem->dmc_channels; channel++) { + unsigned long mask; + + mask = channel << DIRECT_CMD_CHANNEL_SHIFT; + for (chip = 0; chip < mem->chips_to_configure; chip++) { + int i; + + mask |= chip << DIRECT_CMD_CHIP_SHIFT; + + /* Sending NOP command */ + writel(DIRECT_CMD_NOP | mask, &dmc->directcmd); + + /* + * TODO(alim.akhtar@samsung.com): Do we need these + * delays? This one and the next were not there for + * DDR3. + */ + udelay(100); + + /* Sending EMRS/MRS commands */ + for (i = 0; i < MEM_TIMINGS_MSR_COUNT; i++) { + writel(mem->direct_cmd_msr[i] | mask, + &dmc->directcmd); + udelay(100); + } + + if (mem->send_zq_init) { + /* Sending ZQINIT command */ + writel(DIRECT_CMD_ZQINIT | mask, + &dmc->directcmd); + /* + * FIXME: This was originally sdelay(10000) + * in the imported u-boot code. That may have + * been meant to be sdelay(0x10000) since that + * was used elsewhere in this function. Either + * way seems to work, though. + */ + udelay(12); + } + } + } +} + +void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc) +{ + int channel, chip; + + for (channel = 0; channel < mem->dmc_channels; channel++) { + unsigned long mask; + + mask = channel << DIRECT_CMD_CHANNEL_SHIFT; + for (chip = 0; chip < mem->chips_per_channel; chip++) { + mask |= chip << DIRECT_CMD_CHIP_SHIFT; + + /* PALL (all banks precharge) CMD */ + writel(DIRECT_CMD_PALL | mask, &dmc->directcmd); + udelay(100); + } + } +} + +void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc) +{ + writel(mem->memconfig, &dmc->memconfig0); + writel(mem->memconfig, &dmc->memconfig1); + writel(DMC_MEMBASECONFIG0_VAL, &dmc->membaseconfig0); + writel(DMC_MEMBASECONFIG1_VAL, &dmc->membaseconfig1); +} + diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c new file mode 100644 index 0000000..2d78087 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c @@ -0,0 +1,277 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* DDR3 mem setup file for SMDK5420 board based on EXYNOS5 */ + +#include <console/console.h> +#include <delay.h> +#include <arch/io.h> +#include "clk.h" +#include "cpu.h" +#include "dmc.h" +#include "setup.h" + +#define RDLVL_COMPLETE_TIMEOUT 10000 + +static void reset_phy_ctrl(void) +{ + struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE; + + writel(LPDDR3PHY_CTRL_PHY_RESET_OFF, &clk->lpddr3phy_ctrl); + writel(LPDDR3PHY_CTRL_PHY_RESET, &clk->lpddr3phy_ctrl); + +#if 0 + /* + * For proper memory initialization there should be a minimum delay of + * 500us after the LPDDR3PHY_CTRL_PHY_RESET signal. + * The below value is an approximate value whose calculation in done + * considering that sdelay takes 2 instruction for every 1 delay cycle. + * And assuming each instruction takes 1 clock cycle i.e 1/(1.7 Ghz)sec + * So for 500 usec, the number of delay cycle should be + * (500 * 10^-6) * (1.7 * 10^9) / 2 = 425000 + * + * TODO(hatim.rv@samsung.com): Implement the delay using timer/counter + */ + sdelay(425000); +#endif + udelay(500); +} + +int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size, + int mem_reset) +{ + unsigned int val; + struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl; + struct exynos5_dmc *dmc; + int i; + + phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE; + phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE; + dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE; + + if (mem_reset) { + printk(BIOS_SPEW, "%s: reset phy: ", __func__); + reset_phy_ctrl(); + printk(BIOS_SPEW, "done\n"); + } else { + printk(BIOS_SPEW, "%s: skip mem_reset.\n", __func__); + } + + /* Set Impedance Output Driver */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set Impedance Output Driver\n"); + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: mem->impedance 0x%x\n", + mem->impedance); + val = (mem->impedance << CA_CK_DRVR_DS_OFFSET) | + (mem->impedance << CA_CKE_DRVR_DS_OFFSET) | + (mem->impedance << CA_CS_DRVR_DS_OFFSET) | + (mem->impedance << CA_ADR_DRVR_DS_OFFSET); + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: val 0x%x\n", val); + writel(val, &phy0_ctrl->phy_con39); + writel(val, &phy1_ctrl->phy_con39); + + /* Set Read Latency and Burst Length for PHY0 and PHY1 */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Set Read Latency and Burst Length for PHY0 and PHY1\n"); + val = (mem->ctrl_bstlen << PHY_CON42_CTRL_BSTLEN_SHIFT) | + (mem->ctrl_rdlat << PHY_CON42_CTRL_RDLAT_SHIFT); + writel(val, &phy0_ctrl->phy_con42); + writel(val, &phy1_ctrl->phy_con42); + + /* ZQ Calibration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: ZQ Calibration\n"); + if (dmc_config_zq(mem, phy0_ctrl, phy1_ctrl)) + return SETUP_ERR_ZQ_CALIBRATION_FAILURE; + + /* DQ Signal */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQ Signal\n"); + writel(mem->phy0_pulld_dqs, &phy0_ctrl->phy_con14); + writel(mem->phy1_pulld_dqs, &phy1_ctrl->phy_con14); + + writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) + | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT), + &dmc->concontrol); + + update_reset_dll(dmc, DDR_MODE_DDR3); + + /* DQS Signal */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: DQS Signal\n"); + writel(mem->phy0_dqs, &phy0_ctrl->phy_con4); + writel(mem->phy1_dqs, &phy1_ctrl->phy_con4); + + writel(mem->phy0_dq, &phy0_ctrl->phy_con6); + writel(mem->phy1_dq, &phy1_ctrl->phy_con6); + + writel(mem->phy0_tFS, &phy0_ctrl->phy_con10); + writel(mem->phy1_tFS, &phy1_ctrl->phy_con10); + + val = (mem->ctrl_start_point << PHY_CON12_CTRL_START_POINT_SHIFT) | + (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) | + (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) | + (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT); + writel(val, &phy0_ctrl->phy_con12); + writel(val, &phy1_ctrl->phy_con12); + + /* Start DLL locking */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Start DLL Locking\n"); + writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT), + &phy0_ctrl->phy_con12); + writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT), + &phy1_ctrl->phy_con12); + + update_reset_dll(dmc, DDR_MODE_DDR3); + + writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT), + &dmc->concontrol); + + /* Memory Channel Inteleaving Size */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Memory Channel Inteleaving Size\n"); + writel(mem->iv_size, &dmc->ivcontrol); + + /* Set DMC MEMCONTROL register */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Set DMC MEMCONTROL register\n"); + val = mem->memcontrol & ~DMC_MEMCONTROL_DSREF_ENABLE; + writel(val, &dmc->memcontrol); + + writel(mem->memconfig, &dmc->memconfig0); + writel(mem->memconfig, &dmc->memconfig1); + writel(mem->membaseconfig0, &dmc->membaseconfig0); + writel(mem->membaseconfig1, &dmc->membaseconfig1); + + /* Precharge Configuration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Precharge Configuration\n"); + writel(mem->prechconfig_tp_cnt << PRECHCONFIG_TP_CNT_SHIFT, + &dmc->prechconfig); + + /* Power Down mode Configuration */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Power Down mode Configuraation\n"); + writel(mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT | + mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT, + &dmc->pwrdnconfig); + + /* TimingRow, TimingData, TimingPower and Timingaref + * values as per Memory AC parameters + */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "TimingRow, TimingData, TimingPower and Timingaref\n"); + writel(mem->timing_ref, &dmc->timingref); + writel(mem->timing_row, &dmc->timingrow); + writel(mem->timing_data, &dmc->timingdata); + writel(mem->timing_power, &dmc->timingpower); + + /* Send PALL command */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n"); + dmc_config_prech(mem, dmc); + + /* Send NOP, MRS and ZQINIT commands */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send NOP, MRS, and ZQINIT\n"); + dmc_config_mrs(mem, dmc); + + if (mem->gate_leveling_enable) { + val = PHY_CON0_RESET_VAL; + val |= P0_CMD_EN; + writel(val, &phy0_ctrl->phy_con0); + writel(val, &phy1_ctrl->phy_con0); + + val = PHY_CON2_RESET_VAL; + val |= INIT_DESKEW_EN; + writel(val, &phy0_ctrl->phy_con2); + writel(val, &phy1_ctrl->phy_con2); + + val = PHY_CON0_RESET_VAL; + val |= P0_CMD_EN; + val |= BYTE_RDLVL_EN; + writel(val, &phy0_ctrl->phy_con0); + writel(val, &phy1_ctrl->phy_con0); + + val = (mem->ctrl_start_point << + PHY_CON12_CTRL_START_POINT_SHIFT) | + (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) | + (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) | + (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) | + (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT); + writel(val, &phy0_ctrl->phy_con12); + writel(val, &phy1_ctrl->phy_con12); + + val = PHY_CON2_RESET_VAL; + val |= INIT_DESKEW_EN; + val |= RDLVL_GATE_EN; + writel(val, &phy0_ctrl->phy_con2); + writel(val, &phy1_ctrl->phy_con2); + + val = PHY_CON0_RESET_VAL; + val |= P0_CMD_EN; + val |= BYTE_RDLVL_EN; + val |= CTRL_SHGATE; + writel(val, &phy0_ctrl->phy_con0); + writel(val, &phy1_ctrl->phy_con0); + + val = PHY_CON1_RESET_VAL; + val &= ~(CTRL_GATEDURADJ_MASK); + writel(val, &phy0_ctrl->phy_con1); + writel(val, &phy1_ctrl->phy_con1); + + writel(CTRL_RDLVL_GATE_ENABLE, &dmc->rdlvl_config); + i = RDLVL_COMPLETE_TIMEOUT; + while ((readl(&dmc->phystatus) & + (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1)) != + (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1) && i > 0) { + /* + * TODO(waihong): Comment on how long this take to + * timeout + */ + udelay(1); + i--; + } + if (!i){ + printk(BIOS_SPEW, "Timeout on RDLVL. No DRAM.\n"); + return SETUP_ERR_RDLV_COMPLETE_TIMEOUT; + } + writel(CTRL_RDLVL_GATE_DISABLE, &dmc->rdlvl_config); + + writel(0, &phy0_ctrl->phy_con14); + writel(0, &phy1_ctrl->phy_con14); + + val = (mem->ctrl_start_point << + PHY_CON12_CTRL_START_POINT_SHIFT) | + (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) | + (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) | + (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) | + (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) | + (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT); + writel(val, &phy0_ctrl->phy_con12); + writel(val, &phy1_ctrl->phy_con12); + + update_reset_dll(dmc, DDR_MODE_DDR3); + } + + /* Send PALL command */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: Send PALL Command\n"); + dmc_config_prech(mem, dmc); + + writel(mem->memcontrol, &dmc->memcontrol); + + /* Set DMC Concontrol and enable auto-refresh counter */ + printk(BIOS_SPEW, "ddr3_mem_ctrl_init: " + "Set DMC Concontrol and enable auto-refresh counter\n"); + writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) + | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT), &dmc->concontrol); + return 0; +} diff --git a/src/cpu/samsung/exynos5420/dp-core.h b/src/cpu/samsung/exynos5420/dp-core.h new file mode 100644 index 0000000..7b81037 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dp-core.h @@ -0,0 +1,268 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Header file for Samsung DP (Display Port) interface driver. */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_DP_CORE_H +#define CPU_SAMSUNG_EXYNOS5420_DP_CORE_H + +#define STREAM_ON_TIMEOUT 100 +#define PLL_LOCK_TIMEOUT 10 +#define DP_INIT_TRIES 10 +#define MAX_CR_LOOP 5 +#define MAX_EQ_LOOP 4 + +/* Link tare type */ +enum link_rate { + LINK_RATE_1_62GBPS = 0x06, + LINK_RATE_2_70GBPS = 0x0a +}; + +/* Number of lanes supported */ +enum link_lane_count { + LANE_COUNT1 = 1, + LANE_COUNT2 = 2, + LANE_COUNT4 = 4 +}; + +/* Pre emphasis level */ +enum pre_emphasis_level { + PRE_EMPHASIS_LEVEL_0, + PRE_EMPHASIS_LEVEL_1, + PRE_EMPHASIS_LEVEL_2, + PRE_EMPHASIS_LEVEL_3, +}; + +/* Type of color space */ +enum color_space { + COLOR_RGB, + COLOR_YCBCR422, + COLOR_YCBCR444 +}; + +/* Video input Bit Per Color */ +enum color_depth { + COLOR_6, + COLOR_8, + COLOR_10, + COLOR_12 +}; + +/* Type of YCbCr coefficient */ +enum color_coefficient { + COLOR_YCBCR601, + COLOR_YCBCR709 +}; + +/* Color range */ +enum dynamic_range { + VESA, + CEA +}; + +/* Status of PLL clock */ +enum pll_status { + PLL_UNLOCKED, + PLL_LOCKED +}; + +/* To choose type of m_value */ +enum clock_recovery_m_value_type { + CALCULATED_M, + REGISTER_M +}; + +struct video_info { + enum color_space color_space; + enum dynamic_range dynamic_range; + enum color_coefficient ycbcr_coeff; + enum color_depth color_depth; + + enum link_rate link_rate; + enum link_lane_count lane_count; + + char *name; + + unsigned int h_sync_polarity:1; + unsigned int v_sync_polarity:1; + unsigned int interlaced:1; +}; + +struct link_train { + u8 link_rate; + u8 lane_count; +}; + +struct s5p_dp_device { + unsigned int irq; + struct exynos5_dp *base; + struct video_info *video_info; + struct link_train link_train; +}; + +/* this struct is used by mainboards to pass mode info to the driver */ +typedef struct vidinfo { + u16 vl_col; + u16 vl_row; + u8 vl_bpix; + u16 *cmap; +} vidinfo_t; + +/* s5p_dp_reg.c */ + +/* + * Reset DP module + * + * param dp pointer to main s5p-dp structure + */ +void s5p_dp_reset(struct s5p_dp_device *dp); +/* + * Initialize DP to recieve video stream + * + * param dp pointer to main s5p-dp structure + */ +void s5p_dp_init_video(struct s5p_dp_device *dp); +/* + * Check whether PLL is locked + * + * param dp pointer to main s5p-dp structure + * return Lock status + */ +unsigned int s5p_dp_get_pll_lock_status(struct s5p_dp_device *dp); +/* + * Initialize analog functions of DP + * + * param dp pointer to main s5p-dp structure + * return 0 on success + */ +int s5p_dp_init_analog_func(struct s5p_dp_device *dp); +/* + * Initialize DP for AUX transaction + * + * param dp pointer to main s5p-dp structure + */ +void s5p_dp_init_aux(struct s5p_dp_device *dp); + +/* + * Start an AUX transaction. + * + * param dp pointer to main s5p-dp structure + */ +int s5p_dp_start_aux_transaction(struct s5p_dp_device *dp); + +/* + * Write a byte to DPCD register + * + * param dp pointer to main s5p-dp structure + * param reg_addr DPCD register to be written + * param data byte data to be written + * return write status + */ +int s5p_dp_write_byte_to_dpcd(struct s5p_dp_device *dp, + unsigned int reg_addr, + unsigned char data); +/* + * Read a byte from DPCD register + * + * param dp pointer to main s5p-dp structure + * param reg_addr DPCD register to read + * param data read byte data + * return read status + */ +int s5p_dp_read_byte_from_dpcd(struct s5p_dp_device *dp, + unsigned int reg_addr, + unsigned char *data); +/* + * Initialize DP video functions + * + * param dp pointer to main s5p-dp structure + */ +//void s5p_dp_init_video(struct s5p_dp_device *dp); + +/* + * Set color parameters for display + * + * param dp pointer to main s5p-dp structure + * param color_depth Video input Bit Per Color + * param color_space Colorimetric format of input video + * param dynamic_range VESA range or CEA range + * param coeff YCbCr Coefficients of input video + */ +void s5p_dp_set_video_color_format(struct s5p_dp_device *dp, + unsigned int color_depth, + unsigned int color_space, + unsigned int dynamic_range, + unsigned int coeff); +/* + * Check whether video clock is on + * + * param dp pointer to main s5p-dp structure + * return clock status + */ +int s5p_dp_is_slave_video_stream_clock_on(struct s5p_dp_device *dp); +/* + * Check whether video clock is on + * + * param dp pointer to main s5p-dp structure + * param type clock_recovery_m_value_type + * param m_value to caluculate m_vid value + * param n_value to caluculate n_vid value + */ +void s5p_dp_set_video_cr_mn(struct s5p_dp_device *dp, + enum clock_recovery_m_value_type type, + unsigned int m_value, + unsigned int n_value); +/* + * Set DP to video slave mode thereby enabling video master + * + * param dp pointer to main s5p-dp structure + */ +void s5p_dp_enable_video_master(struct s5p_dp_device *dp); +/* + * Check whether video stream is on + * + * param dp pointer to main s5p-dp structure + * return video stream status + */ +int s5p_dp_is_video_stream_on(struct s5p_dp_device *dp); +/* + * Configure DP in slave mode + * + * param dp pointer to main s5p-dp structure + * param video_info pointer to main video_info structure. + */ +void s5p_dp_config_video_slave_mode(struct s5p_dp_device *dp, + struct video_info *video_info); + +/* + * Wait unitl HW link training done + * + * param dp pointer to main s5p-dp structure + */ +void s5p_dp_wait_hw_link_training_done(struct s5p_dp_device *dp); + +/* startup and init */ +struct exynos5_fimd_panel; +void fb_init(vidinfo_t *panel_info, void *lcdbase, + struct exynos5_fimd_panel *pd); +int dp_controller_init(struct s5p_dp_device *dp_device); +int lcd_ctrl_init(vidinfo_t *panel_info, + struct exynos5_fimd_panel *panel_data, void *lcdbase); +#endif /* CPU_SAMSUNG_EXYNOS5420_DP_CORE_H */ diff --git a/src/cpu/samsung/exynos5420/dp-reg.c b/src/cpu/samsung/exynos5420/dp-reg.c new file mode 100644 index 0000000..eb53356 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dp-reg.c @@ -0,0 +1,495 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Samsung DP (Display port) register interface driver. */ + +#include <console/console.h> +#include <arch/io.h> +#include <delay.h> +#include "timer.h" +#include "clk.h" +#include "cpu.h" +#include "periph.h" +#include "dp.h" +#include "fimd.h" +#include "dp-core.h" + +void s5p_dp_reset(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + writel(RESET_DP_TX, &base->dp_tx_sw_reset); + + /* Stop Video */ + clrbits_le32(&base->video_ctl_1, VIDEO_EN); + clrbits_le32(&base->video_ctl_1, HDCP_VIDEO_MUTE); + + reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N | + AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N | + HDCP_FUNC_EN_N | SW_FUNC_EN_N; + writel(reg, &base->func_en_1); + + reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N | + SERDES_FIFO_FUNC_EN_N | + LS_CLK_DOMAIN_FUNC_EN_N; + writel(reg, &base->func_en_2); + + udelay(20); + + reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 | + LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0; + + writel(reg, &base->lane_map); + + writel(0x0, &base->sys_ctl_1); + writel(0x40, &base->sys_ctl_2); + writel(0x0, &base->sys_ctl_3); + writel(0x0, &base->sys_ctl_4); + + writel(0x0, &base->pkt_send_ctl); + writel(0x0, &base->dp_hdcp_ctl); + + writel(0x5e, &base->dp_hpd_deglitch_l); + writel(0x1a, &base->dp_hpd_deglitch_h); + + writel(0x10, &base->dp_debug_ctl); + + writel(0x0, &base->dp_phy_test); + + writel(0x0, &base->dp_video_fifo_thrd); + writel(0x20, &base->dp_audio_margin); + + writel(0x4, &base->m_vid_gen_filter_th); + writel(0x2, &base->m_aud_gen_filter_th); + + writel(0x00000101, &base->soc_general_ctl); + + /* Set Analog Parameters */ + writel(0x10, &base->analog_ctl_1); + writel(0x0C, &base->analog_ctl_2); + writel(0x85, &base->analog_ctl_3); + writel(0x66, &base->pll_filter_ctl_1); + writel(0x0, &base->tx_amp_tuning_ctl); + + /* Set interrupt pin assertion polarity as high */ + writel(INT_POL0 | INT_POL1, &base->int_ctl); + + /* Clear pending regisers */ + writel(0xff, &base->common_int_sta_1); + writel(0x4f, &base->common_int_sta_2); + writel(0xe0, &base->common_int_sta_3); + writel(0xe7, &base->common_int_sta_4); + writel(0x63, &base->dp_int_sta); + + /* 0:mask,1: unmask */ + writel(0x00, &base->common_int_mask_1); + writel(0x00, &base->common_int_mask_2); + writel(0x00, &base->common_int_mask_3); + writel(0x00, &base->common_int_mask_4); + writel(0x00, &base->int_sta_mask); +} + +unsigned int s5p_dp_get_pll_lock_status(struct s5p_dp_device *dp) +{ + u32 reg; + + reg = readl(&dp->base->dp_debug_ctl); + if (reg & PLL_LOCK) + return PLL_LOCKED; + else + return PLL_UNLOCKED; +} + +int s5p_dp_init_analog_func(struct s5p_dp_device *dp) +{ + u32 reg; + u32 start; + struct exynos5_dp *base = dp->base; + + writel(0x00, &base->dp_phy_pd); + + reg = PLL_LOCK_CHG; + writel(reg, &base->common_int_sta_1); + + clrbits_le32(&base->dp_debug_ctl, (F_PLL_LOCK | PLL_LOCK_CTRL)); + + /* Power up PLL */ + if (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) { + + clrbits_le32(&base->dp_pll_ctl, DP_PLL_PD); + + start = get_timer(0); + while (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) { + if (get_timer(start) > PLL_LOCK_TIMEOUT) { + printk(BIOS_ERR, "%s: PLL is not locked\n", + __func__); + return -1; + } + } + } + + /* Enable Serdes FIFO function and Link symbol clock domain module */ + clrbits_le32(&base->func_en_2, (SERDES_FIFO_FUNC_EN_N | + LS_CLK_DOMAIN_FUNC_EN_N | AUX_FUNC_EN_N)); + return 0; +} + +void s5p_dp_init_aux(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + /* Clear inerrupts related to AUX channel */ + reg = RPLY_RECEIV | AUX_ERR; + writel(reg, &base->dp_int_sta); + + /* Disable AUX channel module */ + setbits_le32(&base->func_en_2, AUX_FUNC_EN_N); + + /* Disable AUX transaction H/W retry */ + reg = (3 & AUX_BIT_PERIOD_MASK) << AUX_BIT_PERIOD_SHIFT; + reg |= (0 & AUX_HW_RETRY_COUNT_MASK) << AUX_HW_RETRY_COUNT_SHIFT; + reg |= (AUX_HW_RETRY_INTERVAL_600_US << AUX_HW_RETRY_INTERVAL_SHIFT); + writel(reg, &base->aux_hw_retry_ctl) ; + + /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */ + reg = DEFER_CTRL_EN; + reg |= (1 & DEFER_COUNT_MASK) << DEFER_COUNT_SHIFT; + writel(reg, &base->aux_ch_defer_dtl); + + /* Enable AUX channel module */ + clrbits_le32(&base->func_en_2, AUX_FUNC_EN_N); +} + +int s5p_dp_start_aux_transaction(struct s5p_dp_device *dp) +{ + int reg; + struct exynos5_dp *base = dp->base; + + /* Enable AUX CH operation */ + setbits_le32(&base->aux_ch_ctl_2, AUX_EN); + + /* Is AUX CH command reply received? */ + reg = readl(&base->dp_int_sta); + while (!(reg & RPLY_RECEIV)) + reg = readl(&base->dp_int_sta); + + /* Clear interrupt source for AUX CH command reply */ + writel(RPLY_RECEIV, &base->dp_int_sta); + + /* Clear interrupt source for AUX CH access error */ + reg = readl(&base->dp_int_sta); + if (reg & AUX_ERR) { + printk(BIOS_ERR, "%s: AUX_ERR encountered, dp_int_sta: " + "0x%02x\n", __func__, reg); + writel(AUX_ERR, &base->dp_int_sta); + return -1; + } + + /* Check AUX CH error access status */ + reg = readl(&base->dp_int_sta); + if ((reg & AUX_STATUS_MASK) != 0) { + printk(BIOS_ERR, "AUX CH error happens: %d\n\n", + reg & AUX_STATUS_MASK); + return -1; + } + + return 0; +} + +int s5p_dp_write_byte_to_dpcd(struct s5p_dp_device *dp, + unsigned int reg_addr, + unsigned char data) +{ + u32 reg; + int i; + int retval; + struct exynos5_dp *base = dp->base; + + for (i = 0; i < MAX_AUX_RETRY_COUNT; i++) { + /* Clear AUX CH data buffer */ + writel(BUF_CLR, &base->buf_data_ctl); + + /* Select DPCD device address */ + reg = reg_addr >> AUX_ADDR_7_0_SHIFT; + reg &= AUX_ADDR_7_0_MASK; + writel(reg, &base->aux_addr_7_0); + reg = reg_addr >> AUX_ADDR_15_8_SHIFT; + reg &= AUX_ADDR_15_8_MASK; + writel(reg, &base->aux_addr_15_8); + reg = reg_addr >> AUX_ADDR_19_16_SHIFT; + reg &= AUX_ADDR_19_16_MASK; + writel(reg, &base->aux_addr_19_16); + + /* Write data buffer */ + reg = (unsigned int)data; + writel(reg, &base->buf_data_0); + + /* + * Set DisplayPort transaction and write 1 byte + * If bit 3 is 1, DisplayPort transaction. + * If Bit 3 is 0, I2C transaction. + */ + reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE; + writel(reg, &base->aux_ch_ctl_1); + + /* Start AUX transaction */ + retval = s5p_dp_start_aux_transaction(dp); + if (retval == 0) + break; + else + printk(BIOS_DEBUG, "Aux Transaction fail!\n"); + } + + return retval; +} + +int s5p_dp_read_byte_from_dpcd(struct s5p_dp_device *dp, + unsigned int reg_addr, + unsigned char *data) +{ + u32 reg; + int i; + int retval; + struct exynos5_dp *base = dp->base; + + for (i = 0; i < MAX_AUX_RETRY_COUNT; i++) { + /* Clear AUX CH data buffer */ + writel(BUF_CLR, &base->buf_data_ctl); + + /* Select DPCD device address */ + reg = reg_addr >> AUX_ADDR_7_0_SHIFT; + reg &= AUX_ADDR_7_0_MASK; + writel(reg, &base->aux_addr_7_0); + reg = reg_addr >> AUX_ADDR_15_8_SHIFT; + reg &= AUX_ADDR_15_8_MASK; + writel(reg, &base->aux_addr_15_8); + reg = reg_addr >> AUX_ADDR_19_16_SHIFT; + reg &= AUX_ADDR_19_16_MASK; + writel(reg, &base->aux_addr_19_16); + + /* + * Set DisplayPort transaction and read 1 byte + * If bit 3 is 1, DisplayPort transaction. + * If Bit 3 is 0, I2C transaction. + */ + reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ; + writel(reg, &base->aux_ch_ctl_1); + + /* Start AUX transaction */ + retval = s5p_dp_start_aux_transaction(dp); + if (retval == 0) + break; + else + printk(BIOS_DEBUG, "Aux Transaction fail!\n"); + } + + /* Read data buffer */ + if (!retval) { + reg = readl(&base->buf_data_0); + *data = (unsigned char)(reg & 0xff); + } + + return retval; +} + +void s5p_dp_init_video(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG; + writel(reg, &base->common_int_sta_1); + + reg = 0x0; + writel(reg, &base->sys_ctl_1); + + reg = (4 & CHA_CRI_MASK) << CHA_CRI_SHIFT; + reg |= CHA_CTRL; + writel(reg, &base->sys_ctl_2); + + reg = 0x0; + writel(reg, &base->sys_ctl_3); +} + +void s5p_dp_set_video_color_format(struct s5p_dp_device *dp, + unsigned int color_depth, + unsigned int color_space, + unsigned int dynamic_range, + unsigned int coeff) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + /* Configure the input color depth, color space, dynamic range */ + reg = (dynamic_range << IN_D_RANGE_SHIFT) | + (color_depth << IN_BPC_SHIFT) | + (color_space << IN_COLOR_F_SHIFT); + writel(reg, &base->video_ctl_2); + + /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */ + reg = readl(&base->video_ctl_3); + reg &= ~IN_YC_COEFFI_MASK; + if (coeff) + reg |= IN_YC_COEFFI_ITU709; + else + reg |= IN_YC_COEFFI_ITU601; + writel(reg, &base->video_ctl_3); +} + +int s5p_dp_is_slave_video_stream_clock_on(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = readl(&base->sys_ctl_1); + writel(reg, &base->sys_ctl_1); + + reg = readl(&base->sys_ctl_1); + + if (!(reg & DET_STA)) + return -1; + + reg = readl(&base->sys_ctl_2); + writel(reg, &base->sys_ctl_2); + + reg = readl(&base->sys_ctl_2); + + if (reg & CHA_STA) { + printk(BIOS_DEBUG, "Input stream clk is changing\n"); + return -1; + } + + return 0; +} + +void s5p_dp_set_video_cr_mn(struct s5p_dp_device *dp, + enum clock_recovery_m_value_type type, + unsigned int m_value, + unsigned int n_value) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + if (type == REGISTER_M) { + setbits_le32(&base->sys_ctl_4, FIX_M_VID); + + reg = m_value >> M_VID_0_VALUE_SHIFT; + writel(reg, &base->m_vid_0); + + reg = (m_value >> M_VID_1_VALUE_SHIFT); + writel(reg, &base->m_vid_1); + + reg = (m_value >> M_VID_2_VALUE_SHIFT); + writel(reg, &base->m_vid_2); + + reg = n_value >> N_VID_0_VALUE_SHIFT; + writel(reg, &base->n_vid_0); + + reg = (n_value >> N_VID_1_VALUE_SHIFT); + writel(reg, &base->n_vid_1); + + reg = (n_value >> N_VID_2_VALUE_SHIFT); + writel(reg, &base->n_vid_2); + } else { + clrbits_le32(&base->sys_ctl_4, FIX_M_VID); + + writel(0x00, &base->n_vid_0); + writel(0x80, &base->n_vid_1); + writel(0x00, &base->n_vid_2); + } +} + +void s5p_dp_enable_video_master(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = readl(&base->soc_general_ctl); + reg &= ~VIDEO_MODE_MASK; + reg |= VIDEO_MODE_SLAVE_MODE; + writel(reg, &base->soc_general_ctl); +} + +int s5p_dp_is_video_stream_on(struct s5p_dp_device *dp) +{ + u32 reg, i = 0; + u32 start; + struct exynos5_dp *base = dp->base; + + /* Wait for 4 VSYNC_DET interrupts */ + start = get_timer(0); + do { + reg = readl(&base->common_int_sta_1); + if (reg & VSYNC_DET) { + i++; + writel(reg | VSYNC_DET, &base->common_int_sta_1); + } + if (i == 4) + break; + } while (get_timer(start) <= STREAM_ON_TIMEOUT); + + if (i != 4) { + printk(BIOS_DEBUG, "s5p_dp_is_video_stream_on timeout\n"); + return -1; + } + + return 0; +} + +void s5p_dp_config_video_slave_mode(struct s5p_dp_device *dp, + struct video_info *video_info) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = readl(&base->func_en_1); + reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N); + reg |= MASTER_VID_FUNC_EN_N; + writel(reg, &base->func_en_1); + + reg = readl(&base->video_ctl_10); + reg &= ~INTERACE_SCAN_CFG; + reg |= (video_info->interlaced << 2); + writel(reg, &base->video_ctl_10); + + reg = readl(&base->video_ctl_10); + reg &= ~VSYNC_POLARITY_CFG; + reg |= (video_info->v_sync_polarity << 1); + writel(reg, &base->video_ctl_10); + + reg = readl(&base->video_ctl_10); + reg &= ~HSYNC_POLARITY_CFG; + reg |= (video_info->h_sync_polarity << 0); + writel(reg, &base->video_ctl_10); + + reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE; + writel(reg, &base->soc_general_ctl); +} + +void s5p_dp_wait_hw_link_training_done(struct s5p_dp_device *dp) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = readl(&base->dp_hw_link_training); + while (reg & HW_TRAINING_EN) + reg = readl(&base->dp_hw_link_training); +} diff --git a/src/cpu/samsung/exynos5420/dp.h b/src/cpu/samsung/exynos5420/dp.h new file mode 100644 index 0000000..46579b3 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dp.h @@ -0,0 +1,497 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 DP */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_DP_H +#define CPU_SAMSUNG_EXYNOS5420_DP_H + +/* DSIM register map */ +struct exynos5_dp { + u8 res1[0x10]; + u32 dp_tx_version; + u32 dp_tx_sw_reset; + u32 func_en_1; + u32 func_en_2; + u32 video_ctl_1; + u32 video_ctl_2; + u32 video_ctl_3; + u32 video_ctl_4; + u32 clr_blue_cb; + u32 clr_green_y; + u32 clr_red_cr; + u32 video_ctl_8; + u8 res2[0x4]; + u32 video_ctl_10; + u32 total_line_l; + u32 total_line_h; + u32 active_line_l; + u32 active_line_h; + u32 v_f_porch; + u32 vsync; + u32 v_b_porch; + u32 total_pixel_l; + u32 total_pixel_h; + u32 active_pixel_l; + u32 active_pixel_h; + u32 h_f_porch_l; + u32 h_f_porch_h; + u32 hsync_l; + u32 hysnc_h; + u32 h_b_porch_l; + u32 h_b_porch_h; + u32 vid_status; + u32 total_line_sta_l; + u32 total_line_sta_h; + u32 active_line_sta_l; + u32 active_line_sta_h; + u32 v_f_porch_sta; + u32 vsync_sta; + u32 v_b_porch_sta; + u32 total_pixel_sta_l; + u32 total_pixel_sta_h; + u32 active_pixel_sta_l; + u32 active_pixel_sta_h; + u32 h_f_porch_sta_l; + u32 h_f_porch_sta_h; + u32 hsync_sta_l; + u32 hsync_sta_h; + u32 h_b_porch_sta_l; + u32 h_b_porch__sta_h; + u8 res3[0x288]; + u32 lane_map; + u8 res4[0x10]; + u32 analog_ctl_1; + u32 analog_ctl_2; + u32 analog_ctl_3; + u32 pll_filter_ctl_1; + u32 tx_amp_tuning_ctl; + u8 res5[0xc]; + u32 aux_hw_retry_ctl; + u8 res6[0x2c]; + u32 int_state; + u32 common_int_sta_1; + u32 common_int_sta_2; + u32 common_int_sta_3; + u32 common_int_sta_4; + u8 res7[0x8]; + u32 dp_int_sta; + u32 common_int_mask_1; + u32 common_int_mask_2; + u32 common_int_mask_3; + u32 common_int_mask_4; + u8 res8[0x08]; + u32 int_sta_mask; + u32 int_ctl; + u8 res9[0x200]; + u32 sys_ctl_1; + u32 sys_ctl_2; + u32 sys_ctl_3; + u32 sys_ctl_4; + u32 dp_vid_ctl; + u8 res10[0x2c]; + u32 pkt_send_ctl; + u8 res11[0x4]; + u32 dp_hdcp_ctl; + u8 res12[0x34]; + u32 link_bw_set; + u32 lane_count_set; + u32 dp_training_ptn_set; + u32 ln0_link_trn_ctl; + u32 ln1_link_trn_ctl; + u32 ln2_link_trn_ctl; + u32 ln3_link_trn_ctl; + u32 dp_dn_spread; + u32 dp_hw_link_training; + u8 res13[0x1c]; + u32 dp_debug_ctl; + u32 dp_hpd_deglitch_l; + u32 dp_hpd_deglitch_h; + u8 res14[0x14]; + u32 dp_link_debug_ctl; + u8 res15[0x1c]; + u32 m_vid_0; + u32 m_vid_1; + u32 m_vid_2; + u32 n_vid_0; + u32 n_vid_1; + u32 n_vid_2; + u32 m_vid_mon; + u32 dp_pll_ctl; + u32 dp_phy_pd; + u32 dp_phy_test; + u8 res16[0x8]; + u32 dp_video_fifo_thrd; + u8 res17[0x8]; + u32 dp_audio_margin; + u32 dp_dn_spread_ctl_1; + u32 dp_dn_spread_ctl_2; + u8 res18[0x18]; + u32 dp_m_cal_ctl; + u32 m_vid_gen_filter_th; + u8 res19[0x14]; + u32 m_aud_gen_filter_th; + u32 aux_ch_sta; + u32 aux_err_num; + u32 aux_ch_defer_dtl; + u32 aux_rx_comm; + u32 buf_data_ctl; + u32 aux_ch_ctl_1; + u32 aux_addr_7_0; + u32 aux_addr_15_8; + u32 aux_addr_19_16; + u32 aux_ch_ctl_2; + u8 res20[0x18]; + u32 buf_data_0; + u8 res21[0x3c]; + u32 soc_general_ctl; +}; +/* DP_TX_SW_RESET */ +#define RESET_DP_TX (1 << 0) + +/* DP_FUNC_EN_1 */ +#define MASTER_VID_FUNC_EN_N (1 << 7) +#define SLAVE_VID_FUNC_EN_N (1 << 5) +#define AUD_FIFO_FUNC_EN_N (1 << 4) +#define AUD_FUNC_EN_N (1 << 3) +#define HDCP_FUNC_EN_N (1 << 2) +#define CRC_FUNC_EN_N (1 << 1) +#define SW_FUNC_EN_N (1 << 0) + +/* DP_FUNC_EN_2 */ +#define SSC_FUNC_EN_N (1 << 7) +#define AUX_FUNC_EN_N (1 << 2) +#define SERDES_FIFO_FUNC_EN_N (1 << 1) +#define LS_CLK_DOMAIN_FUNC_EN_N (1 << 0) + +/* DP_VIDEO_CTL_1 */ +#define VIDEO_EN (1 << 7) +#define HDCP_VIDEO_MUTE (1 << 6) + +/* DP_VIDEO_CTL_1 */ +#define IN_D_RANGE_MASK (1 << 7) +#define IN_D_RANGE_SHIFT (7) +#define IN_D_RANGE_CEA (1 << 7) +#define IN_D_RANGE_VESA (0 << 7) +#define IN_BPC_MASK (7 << 4) +#define IN_BPC_SHIFT (4) +#define IN_BPC_12_BITS (3 << 4) +#define IN_BPC_10_BITS (2 << 4) +#define IN_BPC_8_BITS (1 << 4) +#define IN_BPC_6_BITS (0 << 4) +#define IN_COLOR_F_MASK (3 << 0) +#define IN_COLOR_F_SHIFT (0) +#define IN_COLOR_F_YCBCR444 (2 << 0) +#define IN_COLOR_F_YCBCR422 (1 << 0) +#define IN_COLOR_F_RGB (0 << 0) + +/* DP_VIDEO_CTL_3 */ +#define IN_YC_COEFFI_MASK (1 << 7) +#define IN_YC_COEFFI_SHIFT (7) +#define IN_YC_COEFFI_ITU709 (1 << 7) +#define IN_YC_COEFFI_ITU601 (0 << 7) +#define VID_CHK_UPDATE_TYPE_MASK (1 << 4) +#define VID_CHK_UPDATE_TYPE_SHIFT (4) +#define VID_CHK_UPDATE_TYPE_1 (1 << 4) +#define VID_CHK_UPDATE_TYPE_0 (0 << 4) + +/* DP_VIDEO_CTL_10 */ +#define FORMAT_SEL (1 << 4) +#define INTERACE_SCAN_CFG (1 << 2) +#define VSYNC_POLARITY_CFG (1 << 1) +#define HSYNC_POLARITY_CFG (1 << 0) + +/* DP_LANE_MAP */ +#define LANE3_MAP_LOGIC_LANE_0 (0 << 6) +#define LANE3_MAP_LOGIC_LANE_1 (1 << 6) +#define LANE3_MAP_LOGIC_LANE_2 (2 << 6) +#define LANE3_MAP_LOGIC_LANE_3 (3 << 6) +#define LANE2_MAP_LOGIC_LANE_0 (0 << 4) +#define LANE2_MAP_LOGIC_LANE_1 (1 << 4) +#define LANE2_MAP_LOGIC_LANE_2 (2 << 4) +#define LANE2_MAP_LOGIC_LANE_3 (3 << 4) +#define LANE1_MAP_LOGIC_LANE_0 (0 << 2) +#define LANE1_MAP_LOGIC_LANE_1 (1 << 2) +#define LANE1_MAP_LOGIC_LANE_2 (2 << 2) +#define LANE1_MAP_LOGIC_LANE_3 (3 << 2) +#define LANE0_MAP_LOGIC_LANE_0 (0 << 0) +#define LANE0_MAP_LOGIC_LANE_1 (1 << 0) +#define LANE0_MAP_LOGIC_LANE_2 (2 << 0) +#define LANE0_MAP_LOGIC_LANE_3 (3 << 0) + +/* DP_AUX_HW_RETRY_CTL */ +#define AUX_BIT_PERIOD_SHIFT 8 +#define AUX_BIT_PERIOD_MASK 7 + +#define AUX_HW_RETRY_INTERVAL_SHIFT 3 +#define AUX_HW_RETRY_INTERVAL_600_US 0 +#define AUX_HW_RETRY_INTERVAL_800_US 1 +#define AUX_HW_RETRY_INTERVAL_1000_US 2 +#define AUX_HW_RETRY_INTERVAL_1800_US 3 +#define AUX_HW_RETRY_COUNT_SHIFT 0 +#define AUX_HW_RETRY_COUNT_MASK 7 + +/* DP_COMMON_INT_STA_1 */ +#define VSYNC_DET (1 << 7) +#define PLL_LOCK_CHG (1 << 6) +#define SPDIF_ERR (1 << 5) +#define SPDIF_UNSTBL (1 << 4) +#define VID_FORMAT_CHG (1 << 3) +#define AUD_CLK_CHG (1 << 2) +#define VID_CLK_CHG (1 << 1) +#define SW_INT (1 << 0) + +/* DP_COMMON_INT_STA_2 */ +#define ENC_EN_CHG (1 << 6) +#define HW_BKSV_RDY (1 << 3) +#define HW_SHA_DONE (1 << 2) +#define HW_AUTH_STATE_CHG (1 << 1) +#define HW_AUTH_DONE (1 << 0) + +/* DP_COMMON_INT_STA_3 */ +#define AFIFO_UNDER (1 << 7) +#define AFIFO_OVER (1 << 6) +#define R0_CHK_FLAG (1 << 5) + +/* DP_COMMON_INT_STA_4 */ +#define PSR_ACTIVE (1 << 7) +#define PSR_INACTIVE (1 << 6) +#define SPDIF_BI_PHASE_ERR (1 << 5) +#define HOTPLUG_CHG (1 << 2) +#define HPD_LOST (1 << 1) +#define PLUG (1 << 0) + +/* DP_INT_STA */ +#define INT_HPD (1 << 6) +#define HW_TRAINING_FINISH (1 << 5) +#define RPLY_RECEIV (1 << 1) +#define AUX_ERR (1 << 0) + +/* DP_INT_CTL */ +#define INT_POL0 (1 << 0) +#define INT_POL1 (1 << 1) +#define SOFT_INT_CTRL (1 << 2) + +/* DP_SYS_CTL_1 */ +#define DET_STA (1 << 2) +#define FORCE_DET (1 << 1) +#define DET_CTRL (1 << 0) + +/* DP_SYS_CTL_2 */ +#define CHA_CRI_SHIFT 4 +#define CHA_CRI_MASK 0xf +#define CHA_STA (1 << 2) +#define FORCE_CHA (1 << 1) +#define CHA_CTRL (1 << 0) + +/* DP_SYS_CTL_3 */ +#define HPD_STATUS (1 << 6) +#define F_HPD (1 << 5) +#define HPD_CTRL (1 << 4) +#define HDCP_RDY (1 << 3) +#define STRM_VALID (1 << 2) +#define F_VALID (1 << 1) +#define VALID_CTRL (1 << 0) + +/* DP_SYS_CTL_4 */ +#define FIX_M_AUD (1 << 4) +#define ENHANCED (1 << 3) +#define FIX_M_VID (1 << 2) +#define M_VID_UPDATE_CTRL (3 << 0) + +/* DP_TRAINING_PTN_SET */ +#define SCRAMBLER_TYPE (1 << 9) +#define HW_LINK_TRAINING_PATTERN (1 << 8) +#define SCRAMBLING_DISABLE (1 << 5) +#define SCRAMBLING_ENABLE (0 << 5) +#define LINK_QUAL_PATTERN_SET_MASK (3 << 2) +#define LINK_QUAL_PATTERN_SET_PRBS7 (3 << 2) +#define LINK_QUAL_PATTERN_SET_D10_2 (1 << 2) +#define LINK_QUAL_PATTERN_SET_DISABLE (0 << 2) +#define SW_TRAINING_PATTERN_SET_MASK (3 << 0) +#define SW_TRAINING_PATTERN_SET_PTN2 (2 << 0) +#define SW_TRAINING_PATTERN_SET_PTN1 (1 << 0) +#define SW_TRAINING_PATTERN_SET_NORMAL (0 << 0) + +/* DP_LN0_LINK_TRAINING_CTL */ +#define PRE_EMPHASIS_SET_SHIFT (3) + +/* DP_DEBUG_CTL */ +#define PLL_LOCK (1 << 4) +#define F_PLL_LOCK (1 << 3) +#define PLL_LOCK_CTRL (1 << 2) +#define PN_INV (1 << 0) + +/* DP_M_VID */ +#define M_VID_0_VALUE_SHIFT 0 +#define M_VID_1_VALUE_SHIFT 8 +#define M_VID_2_VALUE_SHIFT 16 + +/* DP_M_VID */ +#define N_VID_0_VALUE_SHIFT 0 +#define N_VID_1_VALUE_SHIFT 8 +#define N_VID_2_VALUE_SHIFT 16 + +/* DP_PLL_CTL */ +#define DP_PLL_PD (1 << 7) +#define DP_PLL_RESET (1 << 6) +#define DP_PLL_LOOP_BIT_DEFAULT (1 << 4) +#define DP_PLL_REF_BIT_1_1250V (5 << 0) +#define DP_PLL_REF_BIT_1_2500V (7 << 0) + +/* DP_PHY_PD */ +#define DP_PHY_PD (1 << 5) +#define AUX_PD (1 << 4) +#define CH3_PD (1 << 3) +#define CH2_PD (1 << 2) +#define CH1_PD (1 << 1) +#define CH0_PD (1 << 0) + +/* DP_PHY_TEST */ +#define MACRO_RST (1 << 5) +#define CH1_TEST (1 << 1) +#define CH0_TEST (1 << 0) + +/* DP_AUX_CH_STA */ +#define AUX_BUSY (1 << 4) +#define AUX_STATUS_MASK (0xf << 0) + +/* DP_AUX_CH_DEFER_CTL */ +#define DEFER_CTRL_EN (1 << 7) +#define DEFER_COUNT_SHIFT 0 +#define DEFER_COUNT_MASK 0x7f + +/* DP_AUX_RX_COMM */ +#define AUX_RX_COMM_I2C_DEFER (2 << 2) +#define AUX_RX_COMM_AUX_DEFER (2 << 0) + +/* DP_BUFFER_DATA_CTL */ +#define BUF_CLR (1 << 7) + +/* Maximum number of tries for Aux Transaction */ +#define MAX_AUX_RETRY_COUNT 10 + +/* DP_AUX_CH_CTL_1 */ +#define AUX_LENGTH_SHIFT 4 +#define AUX_LENGTH_MASK 0xf + +#define AUX_TX_COMM_MASK (0xf << 0) +#define AUX_TX_COMM_DP_TRANSACTION (1 << 3) +#define AUX_TX_COMM_I2C_TRANSACTION (0 << 3) +#define AUX_TX_COMM_MOT (1 << 2) +#define AUX_TX_COMM_WRITE (0 << 0) +#define AUX_TX_COMM_READ (1 << 0) + +/* DP_AUX_ADDR_7_0 */ +#define AUX_ADDR_7_0_SHIFT 0 +#define AUX_ADDR_7_0_MASK 0xff + +/* DP_AUX_ADDR_15_8 */ +#define AUX_ADDR_15_8_SHIFT 8 +#define AUX_ADDR_15_8_MASK 0xff + +/* DP_AUX_ADDR_19_16 */ +#define AUX_ADDR_19_16_SHIFT 16 +#define AUX_ADDR_19_16_MASK 0x0f + +/* DP_AUX_CH_CTL_2 */ +#define ADDR_ONLY (1 << 1) +#define AUX_EN (1 << 0) + +/* DP_SOC_GENERAL_CTL */ +#define AUDIO_MODE_SPDIF_MODE (1 << 8) +#define AUDIO_MODE_MASTER_MODE (0 << 8) +#define MASTER_VIDEO_INTERLACE_EN (1 << 4) +#define VIDEO_MASTER_CLK_SEL (1 << 2) +#define VIDEO_MASTER_MODE_EN (1 << 1) +#define VIDEO_MODE_MASK (1 << 0) +#define VIDEO_MODE_SLAVE_MODE (1 << 0) +#define VIDEO_MODE_MASTER_MODE (0 << 0) + +#define HW_TRAINING_ERROR_CODE (7<<4) +#define HW_TRAINING_EN (1<<0) + +/* I2C EDID Chip ID, Slave Address */ +#define I2C_EDID_DEVICE_ADDR 0x50 +#define I2C_E_EDID_DEVICE_ADDR 0x30 + +#define EDID_BLOCK_LENGTH 0x80 +#define EDID_HEADER_PATTERN 0x00 +#define EDID_EXTENSION_FLAG 0x7e +#define EDID_CHECKSUM 0x7f + +/* Definition for DPCD Register */ +#define DPCD_ADDR_DPCD_REV 0x0000 +#define DPCD_ADDR_MAX_LINK_RATE 0x0001 +#define DPCD_ADDR_MAX_LANE_COUNT 0x0002 +#define DPCD_ADDR_LINK_BW_SET 0x0100 +#define DPCD_ADDR_LANE_COUNT_SET 0x0101 +#define DPCD_ADDR_TRAINING_PATTERN_SET 0x0102 +#define DPCD_ADDR_TRAINING_LANE0_SET 0x0103 +#define DPCD_ADDR_LANE0_1_STATUS 0x0202 +#define DPCD_ADDR_LANE_ALIGN__STATUS_UPDATED 0x0204 +#define DPCD_ADDR_ADJUST_REQUEST_LANE0_1 0x0206 +#define DPCD_ADDR_ADJUST_REQUEST_LANE2_3 0x0207 +#define DPCD_ADDR_TEST_REQUEST 0x0218 +#define DPCD_ADDR_TEST_RESPONSE 0x0260 +#define DPCD_ADDR_TEST_EDID_CHECKSUM 0x0261 +#define DPCD_ADDR_SINK_POWER_STATE 0x0600 + +/* DPCD_ADDR_MAX_LANE_COUNT */ +#define DPCD_MAX_LANE_COUNT_MASK 0x1f + +/* DPCD_ADDR_LANE_COUNT_SET */ +#define DPCD_ENHANCED_FRAME_EN (1 << 7) +#define DPCD_LANE_COUNT_SET_MASK 0x1f + +/* DPCD_ADDR_TRAINING_PATTERN_SET */ +#define DPCD_SCRAMBLING_DISABLED (1 << 5) +#define DPCD_SCRAMBLING_ENABLED (0 << 5) +#define DPCD_TRAINING_PATTERN_2 (2 << 0) +#define DPCD_TRAINING_PATTERN_1 (1 << 0) +#define DPCD_TRAINING_PATTERN_DISABLED (0 << 0) + +/* DPCD_ADDR_LANE0_1_STATUS */ +#define DPCD_LANE_SYMBOL_LOCKED (1 << 2) +#define DPCD_LANE_CHANNEL_EQ_DONE (1 << 1) +#define DPCD_LANE_CR_DONE (1 << 0) +#define DPCD_CHANNEL_EQ_BITS (DPCD_LANE_CR_DONE | \ + DPCD_LANE_CHANNEL_EQ_DONE | \ + DPCD_LANE_SYMBOL_LOCKED) + +/* DPCD_ADDR_LANE_ALIGN__STATUS_UPDATED */ +#define DPCD_LINK_STATUS_UPDATED (1 << 7) +#define DPCD_DOWNSTREAM_PORT_STATUS_CHANGED (1 << 6) +#define DPCD_INTERLANE_ALIGN_DONE (1 << 0) + +/* DPCD_ADDR_TEST_REQUEST */ +#define DPCD_TEST_EDID_READ (1 << 2) + +/* DPCD_ADDR_TEST_RESPONSE */ +#define DPCD_TEST_EDID_CHECKSUM_WRITE (1 << 2) + +/* DPCD_ADDR_SINK_POWER_STATE */ +#define DPCD_SET_POWER_STATE_D0 (1 << 0) +#define DPCD_SET_POWER_STATE_D4 (2 << 0) + +/* Allow DP Gating clock and set FIMD source to 267 Mhz for DP */ +void clock_init_dp_clock(void); + +#endif diff --git a/src/cpu/samsung/exynos5420/dsim.h b/src/cpu/samsung/exynos5420/dsim.h new file mode 100644 index 0000000..25015a2 --- /dev/null +++ b/src/cpu/samsung/exynos5420/dsim.h @@ -0,0 +1,109 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 MIPI-DSIM */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_DSIM_H +#define CPU_SAMSUNG_EXYNOS5420_DSIM_H + +/* DSIM register map */ +struct exynos5_dsim { + unsigned int status; + unsigned int swrst; + unsigned int clkctrl; + unsigned int timeout; + unsigned int config; + unsigned int escmode; + unsigned int mdresol; + unsigned int mvporch; + unsigned int mhporch; + unsigned int msync; + unsigned int sdresol; + unsigned int intsrc; + unsigned int intmsk; + unsigned int pkthdr; + unsigned int payload; + unsigned int rxfifo; + unsigned int res1; + unsigned int fifoctrl; + unsigned int res2; + unsigned int pllctrl; + unsigned int plltmr; + unsigned int phyacchr; + unsigned int phyacchr1; +}; + +#define ENABLE 1 +#define DISABLE 0 + +#define DSIM_SWRST (1 << 0) +#define NUM_OF_DAT_LANE_IS_FOUR (3 << 5) +#define DATA_LANE_0_EN (1 << 0) +#define DATA_LANE_1_EN (1 << 1) +#define DATA_LANE_2_EN (1 << 2) +#define DATA_LANE_3_EN (1 << 3) +#define CLK_LANE_EN (1 << 4) +#define ENABLE_ALL_DATA_LANE DATA_LANE_0_EN | \ + DATA_LANE_1_EN | \ + DATA_LANE_2_EN | \ + DATA_LANE_3_EN +#define MAIN_PIX_FORMAT_OFFSET 12 +#define RGB_565_16_BIT 0x4 +#define VIDEO_MODE (1 << 25) +#define BURST_MODE (1 << 26) + + +#define DSIM_PHYACCHR_AFC_EN (1 << 14) +#define DSIM_PHYACCHR_AFC_CTL_OFFSET 5 + +#define DSIM_PLLCTRL_PMS_OFFSET 1 +#define DSIM_FREQ_BAND_OFFSET 24 + +#define LANE_ESC_CLK_EN_ALL (0x1f << 19) +#define BYTE_CLK_EN (1 << 24) +#define DSIM_ESC_CLK_EN (1 << 28) +#define TXREQUEST_HS_CLK_ON (1 << 31) + +#define LP_MODE_ENABLE (1 << 7) +#define STOP_STATE_CNT_OFFSET 21 + +#define MAIN_VBP_OFFSET 0 +#define STABLE_VFP_OFFSET 16 +#define CMD_ALLOW_OFFSET 28 + +#define MAIN_HBP_OFFSET 0 +#define MAIN_HFP_OFFSET 16 + +#define MAIN_HSA_OFFSET 0 +#define MAIN_VSA_OFFSET 22 + +#define MAIN_STANDBY (1 << 31) +#define MAIN_VRESOL_OFFSET 16 +#define MAIN_HRESOL_OFFSET 0 + +#define SFR_FIFO_EMPTY (1 << 29) + +#define DSIM_PLL_EN_SHIFT (1 << 23) +#define PLL_STABLE (1 << 31) + +#define DSIM_STOP_STATE_DAT(x) (((x) & 0xf) << 0) +#define DSIM_STOP_STATE_CLK (1 << 8) +#define DSIM_TX_READY_HS_CLK (1 << 10) + +#endif diff --git a/src/cpu/samsung/exynos5420/fb.c b/src/cpu/samsung/exynos5420/fb.c new file mode 100644 index 0000000..d4c3d44 --- /dev/null +++ b/src/cpu/samsung/exynos5420/fb.c @@ -0,0 +1,597 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* LCD driver for Exynos */ + +#include <arch/io.h> +#include <stdlib.h> +#include <string.h> +#include <timer.h> +#include <delay.h> +#include <console/console.h> +#include "timer.h" +#include "cpu.h" +#include "power.h" +#include "sysreg.h" +#include <drivers/maxim/max77686/max77686.h> + +#include "device/i2c.h" +#include "i2c.h" +#include "fimd.h" +#include "dp.h" +#include "dp-core.h" + +/* + * Here is the rough outline of how we bring up the display: + * 1. Upon power-on Sink generates a hot plug detection pulse thru HPD + * 2. Source determines video mode by reading DPCD receiver capability field + * (DPCD 00000h to 0000Dh) including eDP CP capability register (DPCD + * 0000Dh). + * 3. Sink replies DPCD receiver capability field. + * 4. Source starts EDID read thru I2C-over-AUX. + * 5. Sink replies EDID thru I2C-over-AUX. + * 6. Source determines link configuration, such as MAX_LINK_RATE and + * MAX_LANE_COUNT. Source also determines which type of eDP Authentication + * method to use and writes DPCD link configuration field (DPCD 00100h to + * 0010Ah) including eDP configuration set (DPCD 0010Ah). + * 7. Source starts link training. Sink does clock recovery and equalization. + * 8. Source reads DPCD link status field (DPCD 00200h to 0020Bh). + * 9. Sink replies DPCD link status field. If main link is not stable, Source + * repeats Step 7. + * 10. Source sends MSA (Main Stream Attribute) data. Sink extracts video + * parameters and recovers stream clock. + * 11. Source sends video data. + */ + +/* To help debug any init errors here, define a list of possible errors */ +enum { + ERR_PLL_NOT_UNLOCKED = 2, + ERR_VIDEO_CLOCK_BAD, + ERR_VIDEO_STREAM_BAD, + ERR_DPCD_READ_ERROR1, /* 5 */ + + ERR_DPCD_WRITE_ERROR1, + ERR_DPCD_READ_ERROR2, + ERR_DPCD_WRITE_ERROR2, + ERR_INVALID_LANE, + ERR_PLL_NOT_LOCKED, /* 10 */ + + ERR_PRE_EMPHASIS_LEVELS, + ERR_LINK_RATE_ABNORMAL, + ERR_MAX_LANE_COUNT_ABNORMAL, + ERR_LINK_TRAINING_FAILURE, + ERR_MISSING_DP_BASE, /* 15 */ + + ERR_NO_FDT_NODE, +}; +/* ok, this is stupid, but we're going to leave the variables in here until we + * know it works. One cleanup task at a time. + */ +enum stage_t { + STAGE_START = 0, + STAGE_LCD_VDD, + STAGE_BRIDGE_SETUP, + STAGE_BRIDGE_INIT, + STAGE_BRIDGE_RESET, + STAGE_HOTPLUG, + STAGE_DP_CONTROLLER, + STAGE_BACKLIGHT_VDD, + STAGE_BACKLIGHT_PWM, + STAGE_BACKLIGHT_EN, + STAGE_DONE, +}; + +int lcd_line_length; +int lcd_color_fg; +int lcd_color_bg; + +void *lcd_console_address; /* Start of console buffer */ + +short console_col; +short console_row; + +/* Bypass FIMD of DISP1_BLK */ +static void fimd_bypass(void) +{ + struct exynos5_sysreg *sysreg = samsung_get_base_sysreg(); + + setbits_le32(&sysreg->disp1blk_cfg, FIMDBYPASS_DISP1); + sysreg->disp1blk_cfg &= ~FIMDBYPASS_DISP1; +} + +/* Calculate the size of Framebuffer from the resolution */ +static u32 calc_fbsize(vidinfo_t *panel_info) +{ + /* They had PAGE_SIZE here instead of 4096. + * but that's a totally arbitrary number -- everything nowadays + * has lots of page sizes. + * So keep it obvious. + */ + return ALIGN((panel_info->vl_col * panel_info->vl_row * + ((1<<panel_info->vl_bpix) / 8)), 4096); +} + +/* + * Initialize display controller. + * + * @param lcdbase pointer to the base address of framebuffer. + * @pd pointer to the main panel_data structure + */ +void fb_init(vidinfo_t *panel_info, void *lcdbase, + struct exynos5_fimd_panel *pd) +{ + unsigned int val; + u32 fbsize; + struct exynos5_fimd *fimd = samsung_get_base_fimd(); + struct exynos5_disp_ctrl *disp_ctrl = samsung_get_base_disp_ctrl(); + + writel(pd->ivclk | pd->fixvclk, &disp_ctrl->vidcon1); + val = ENVID_ON | ENVID_F_ON | (pd->clkval_f << CLKVAL_F_OFFSET); + writel(val, &fimd->vidcon0); + + val = (pd->vsync << VSYNC_PULSE_WIDTH_OFFSET) | + (pd->lower_margin << V_FRONT_PORCH_OFFSET) | + (pd->upper_margin << V_BACK_PORCH_OFFSET); + writel(val, &disp_ctrl->vidtcon0); + + val = (pd->hsync << HSYNC_PULSE_WIDTH_OFFSET) | + (pd->right_margin << H_FRONT_PORCH_OFFSET) | + (pd->left_margin << H_BACK_PORCH_OFFSET); + writel(val, &disp_ctrl->vidtcon1); + + val = ((pd->xres - 1) << HOZVAL_OFFSET) | + ((pd->yres - 1) << LINEVAL_OFFSET); + writel(val, &disp_ctrl->vidtcon2); + + writel((unsigned int)lcdbase, &fimd->vidw00add0b0); + + fbsize = calc_fbsize(panel_info); + writel((unsigned int)lcdbase + fbsize, &fimd->vidw00add1b0); + + writel(pd->xres * 2, &fimd->vidw00add2); + + val = ((pd->xres - 1) << OSD_RIGHTBOTX_F_OFFSET); + val |= ((pd->yres - 1) << OSD_RIGHTBOTY_F_OFFSET); + writel(val, &fimd->vidosd0b); + writel(pd->xres * pd->yres, &fimd->vidosd0c); + + setbits_le32(&fimd->shadowcon, CHANNEL0_EN); + + val = BPPMODE_F_RGB_16BIT_565 << BPPMODE_F_OFFSET; + val |= ENWIN_F_ENABLE | HALF_WORD_SWAP_EN; + writel(val, &fimd->wincon0); + + /* DPCLKCON_ENABLE */ + writel(1 << 1, &fimd->dpclkcon); +} + +#ifdef UNUSED_CODE +void exynos_fimd_disable(void) +{ + struct exynos5_fimd *fimd = samsung_get_base_fimd(); + + writel(0, &fimd->wincon0); + clrbits_le32(&fimd->shadowcon, CHANNEL0_EN); +} +#endif + +/* + * Configure DP in slave mode and wait for video stream. + * + * param dp pointer to main s5p-dp structure + * param video_info pointer to main video_info structure. + * return status + */ +static int s5p_dp_config_video(struct s5p_dp_device *dp, + struct video_info *video_info) +{ + int timeout = 0; + struct exynos5_dp *base = dp->base; + struct mono_time start, current, end; + s5p_dp_config_video_slave_mode(dp, video_info); + + s5p_dp_set_video_color_format(dp, video_info->color_depth, + video_info->color_space, + video_info->dynamic_range, + video_info->ycbcr_coeff); + + if (s5p_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) { + printk(BIOS_DEBUG, "PLL is not locked yet.\n"); + return -ERR_PLL_NOT_UNLOCKED; + } + + timer_monotonic_get(&start); + end = current = start; + mono_time_add_usecs(&end, STREAM_ON_TIMEOUT * USECS_PER_MSEC); + do { + if (s5p_dp_is_slave_video_stream_clock_on(dp) == 0) { + timeout++; + break; + } + timer_monotonic_get(¤t); + } while (mono_time_before(¤t, &end)); + + if (!timeout) { + printk(BIOS_ERR, "Video Clock Not ok after %ldus.\n", + mono_time_diff_microseconds(&start, &end)); + return -ERR_VIDEO_CLOCK_BAD; + } + + /* Set to use the register calculated M/N video */ + s5p_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0); + + clrbits_le32(&base->video_ctl_10, FORMAT_SEL); + + /* Disable video mute */ + clrbits_le32(&base->video_ctl_1, HDCP_VIDEO_MUTE); + + /* Configure video slave mode */ + s5p_dp_enable_video_master(dp); + + /* Enable video */ + setbits_le32(&base->video_ctl_1, VIDEO_EN); + timeout = s5p_dp_is_video_stream_on(dp); + + if (timeout) { + printk(BIOS_DEBUG, "Video Stream Not on\n"); + return -ERR_VIDEO_STREAM_BAD; + } + + return 0; +} + +/* + * Set DP to enhanced mode. We use this for EVT1 + * param dp pointer to main s5p-dp structure + * return status + */ +static int s5p_dp_enable_rx_to_enhanced_mode(struct s5p_dp_device *dp) +{ + u8 data; + + if (s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_LANE_COUNT_SET, &data)) { + printk(BIOS_DEBUG, "DPCD read error\n"); + return -ERR_DPCD_READ_ERROR1; + } + if (s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_LANE_COUNT_SET, + DPCD_ENHANCED_FRAME_EN | + (data & DPCD_LANE_COUNT_SET_MASK))) { + printk(BIOS_DEBUG, "DPCD write error\n"); + return -ERR_DPCD_WRITE_ERROR1; + } + + return 0; +} + +/* + * Enable scrambles mode. We use this for EVT1 + * param dp pointer to main s5p-dp structure + * return status + */ +static int s5p_dp_enable_scramble(struct s5p_dp_device *dp) +{ + u8 data; + struct exynos5_dp *base = dp->base; + + clrbits_le32(&base->dp_training_ptn_set, SCRAMBLING_DISABLE); + + if (s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_TRAINING_PATTERN_SET, + &data)) { + printk(BIOS_DEBUG, "DPCD read error\n"); + return -ERR_DPCD_READ_ERROR2; + } + + if (s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_TRAINING_PATTERN_SET, + (u8)(data & ~DPCD_SCRAMBLING_DISABLED))) { + printk(BIOS_DEBUG, "DPCD write error\n"); + return -ERR_DPCD_WRITE_ERROR2; + } + + return 0; +} + +/* + * Reset DP and prepare DP for init training + * param dp pointer to main s5p-dp structure + */ +static int s5p_dp_init_dp(struct s5p_dp_device *dp) +{ + int ret, i; + struct exynos5_dp *base = dp->base; + + for (i = 0; i < DP_INIT_TRIES; i++) { + s5p_dp_reset(dp); + + /* SW defined function Normal operation */ + clrbits_le32(&base->func_en_1, SW_FUNC_EN_N); + + ret = s5p_dp_init_analog_func(dp); + if (!ret) + break; + + udelay(5000); + printk(BIOS_DEBUG, "LCD retry init, attempt=%d ret=%d\n", i, ret); + } + if (i == DP_INIT_TRIES) { + printk(BIOS_DEBUG, "LCD initialization failed, ret=%d\n", ret); + return ret; + } + + s5p_dp_init_aux(dp); + + return ret; +} + +/* + * Set pre-emphasis level + * param dp pointer to main s5p-dp structure + * param pre_emphasis pre-emphasis level + * param lane lane number(0 - 3) + * return status + */ +static int s5p_dp_set_lane_lane_pre_emphasis(struct s5p_dp_device *dp, + int pre_emphasis, int lane) +{ + u32 reg; + struct exynos5_dp *base = dp->base; + + reg = pre_emphasis << PRE_EMPHASIS_SET_SHIFT; + switch (lane) { + case 0: + writel(reg, &base->ln0_link_trn_ctl); + break; + case 1: + writel(reg, &base->ln1_link_trn_ctl); + break; + + case 2: + writel(reg, &base->ln2_link_trn_ctl); + break; + + case 3: + writel(reg, &base->ln3_link_trn_ctl); + break; + default: + printk(BIOS_DEBUG, "%s: Invalid lane %d\n", __func__, lane); + return -ERR_INVALID_LANE; + } + return 0; +} + +/* + * Read supported bandwidth type + * param dp pointer to main s5p-dp structure + * param bandwidth pointer to variable holding bandwidth type + */ +static void s5p_dp_get_max_rx_bandwidth(struct s5p_dp_device *dp, + u8 *bandwidth) +{ + u8 data; + + /* + * For DP rev.1.1, Maximum link rate of Main Link lanes + * 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps + */ + s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_MAX_LINK_RATE, &data); + *bandwidth = data; +} + +/* + * Reset DP and prepare DP for init training + * param dp pointer to main s5p-dp structure + * param lane_count pointer to variable holding no of lanes + */ +static void s5p_dp_get_max_rx_lane_count(struct s5p_dp_device *dp, + u8 *lane_count) +{ + u8 data; + + /* + * For DP rev.1.1, Maximum number of Main Link lanes + * 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes + */ + s5p_dp_read_byte_from_dpcd(dp, DPCD_ADDR_MAX_LANE_COUNT, &data); + *lane_count = data & DPCD_MAX_LANE_COUNT_MASK; +} + +/* + * DP H/w Link Training. Set DPCD link rate and bandwidth. + * param dp pointer to main s5p-dp structure + * param max_lane No of lanes + * param max_rate bandwidth + * return status + */ +static int s5p_dp_hw_link_training(struct s5p_dp_device *dp, + unsigned int max_lane, + unsigned int max_rate) +{ + int pll_is_locked = 0; + u32 data; + u32 start; + int lane; + struct exynos5_dp *base = dp->base; + + /* Stop Video */ + clrbits_le32(&base->video_ctl_1, VIDEO_EN); + + start = get_timer(0); + while ((pll_is_locked = s5p_dp_get_pll_lock_status(dp)) == PLL_UNLOCKED) { + if (get_timer(start) > PLL_LOCK_TIMEOUT) { + /* Ignore this error, and try to continue */ + printk(BIOS_ERR, "PLL is not locked yet.\n"); + break; + } + } + printk(BIOS_SPEW, "PLL is %slocked\n", + pll_is_locked == PLL_LOCKED ? "": "not "); + /* Reset Macro */ + setbits_le32(&base->dp_phy_test, MACRO_RST); + + /* 10 us is the minimum reset time. */ + udelay(10); + + clrbits_le32(&base->dp_phy_test, MACRO_RST); + + /* Set TX pre-emphasis to minimum */ + for (lane = 0; lane < max_lane; lane++) + if (s5p_dp_set_lane_lane_pre_emphasis(dp, + PRE_EMPHASIS_LEVEL_0, lane)) { + printk(BIOS_DEBUG, "Unable to set pre emphasis level\n"); + return -ERR_PRE_EMPHASIS_LEVELS; + } + + /* All DP analog module power up */ + writel(0x00, &base->dp_phy_pd); + + /* Initialize by reading RX's DPCD */ + s5p_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate); + s5p_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count); + + printk(BIOS_SPEW, "%s: rate 0x%x, lane_count %d\n", __func__, + dp->link_train.link_rate, dp->link_train.lane_count); + + if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) && + (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) { + printk(BIOS_DEBUG, "Rx Max Link Rate is abnormal :%x !\n", + dp->link_train.link_rate); + /* Not Retrying */ + return -ERR_LINK_RATE_ABNORMAL; + } + + if (dp->link_train.lane_count == 0) { + printk(BIOS_DEBUG, "Rx Max Lane count is abnormal :%x !\n", + dp->link_train.lane_count); + /* Not retrying */ + return -ERR_MAX_LANE_COUNT_ABNORMAL; + } + + /* Setup TX lane count & rate */ + if (dp->link_train.lane_count > max_lane) + dp->link_train.lane_count = max_lane; + if (dp->link_train.link_rate > max_rate) + dp->link_train.link_rate = max_rate; + + /* Set link rate and count as you want to establish*/ + writel(dp->link_train.lane_count, &base->lane_count_set); + writel(dp->link_train.link_rate, &base->link_bw_set); + + /* Set sink to D0 (Sink Not Ready) mode. */ + s5p_dp_write_byte_to_dpcd(dp, DPCD_ADDR_SINK_POWER_STATE, + DPCD_SET_POWER_STATE_D0); + + /* Start HW link training */ + writel(HW_TRAINING_EN, &base->dp_hw_link_training); + + /* Wait until HW link training done */ + s5p_dp_wait_hw_link_training_done(dp); + + /* Get hardware link training status */ + data = readl(&base->dp_hw_link_training); + printk(BIOS_SPEW, "hardware link training status: 0x%08x\n", data); + if (data != 0) { + printk(BIOS_ERR, " H/W link training failure: 0x%x\n", data); + return -ERR_LINK_TRAINING_FAILURE; + } + + /* Get Link Bandwidth */ + data = readl(&base->link_bw_set); + + dp->link_train.link_rate = data; + + data = readl(&base->lane_count_set); + dp->link_train.lane_count = data; + printk(BIOS_SPEW, "Done training: Link bandwidth: 0x%x, lane_count: %d\n", + dp->link_train.link_rate, data); + + return 0; +} + +/* + * Initialize DP display + */ +int dp_controller_init(struct s5p_dp_device *dp_device) +{ + int ret; + struct s5p_dp_device *dp = dp_device; + struct exynos5_dp *base; + + clock_init_dp_clock(); + + power_enable_dp_phy(); + ret = s5p_dp_init_dp(dp); + if (ret) { + printk(BIOS_ERR, "%s: Could not initialize dp\n", __func__); + return ret; + } + + ret = s5p_dp_hw_link_training(dp, dp->video_info->lane_count, + dp->video_info->link_rate); + if (ret) { + printk(BIOS_ERR, "unable to do link train\n"); + return ret; + } + /* Minimum delay after H/w Link training */ + udelay(1000); + + ret = s5p_dp_enable_scramble(dp); + if (ret) { + printk(BIOS_ERR, "unable to set scramble mode\n"); + return ret; + } + + ret = s5p_dp_enable_rx_to_enhanced_mode(dp); + if (ret) { + printk(BIOS_ERR, "unable to set enhanced mode\n"); + return ret; + } + + + base = dp->base; + /* Enable enhanced mode */ + setbits_le32(&base->sys_ctl_4, ENHANCED); + + writel(dp->link_train.lane_count, &base->lane_count_set); + writel(dp->link_train.link_rate, &base->link_bw_set); + + s5p_dp_init_video(dp); + ret = s5p_dp_config_video(dp, dp->video_info); + if (ret) { + printk(BIOS_ERR, "unable to config video\n"); + return ret; + } + + return 0; +} + +/** + * Init the LCD controller + * + * @param lcdbase Base address of LCD frame buffer + * @return 0 if ok, -ve error code on error + */ +int lcd_ctrl_init(vidinfo_t *panel_info, + struct exynos5_fimd_panel *panel_data, void *lcdbase) +{ + int ret = 0; + + fimd_bypass(); + fb_init(panel_info, lcdbase, panel_data); + return ret; +} diff --git a/src/cpu/samsung/exynos5420/fimd.h b/src/cpu/samsung/exynos5420/fimd.h new file mode 100644 index 0000000..661ed9e --- /dev/null +++ b/src/cpu/samsung/exynos5420/fimd.h @@ -0,0 +1,138 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 FIMD */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_FIMD_H +#define CPU_SAMSUNG_EXYNOS5420_FIMD_H + +/* FIMD register map */ +struct exynos5_fimd { + /* This is an incomplete list. Add registers as and when required */ + unsigned int vidcon0; + unsigned char res1[0x1c]; + unsigned int wincon0; + unsigned int wincon1; + unsigned int wincon2; + unsigned int wincon3; + unsigned int wincon4; + unsigned int shadowcon; + unsigned char res2[0x8]; + unsigned int vidosd0a; + unsigned int vidosd0b; + unsigned int vidosd0c; + unsigned char res3[0x54]; + unsigned int vidw00add0b0; + unsigned char res4[0x2c]; + unsigned int vidw00add1b0; + unsigned char res5[0x2c]; + unsigned int vidw00add2; + unsigned char res6[0x3c]; + unsigned int w1keycon0; + unsigned int w1keycon1; + unsigned int w2keycon0; + unsigned int w2keycon1; + unsigned int w3keycon0; + unsigned int w3keycon1; + unsigned int w4keycon0; + unsigned int w4keycon1; + unsigned char res7[0x20]; + unsigned int win0map; + unsigned char res8[0xdc]; + unsigned int blendcon; + unsigned char res9[0x18]; + unsigned int dpclkcon; +}; + +#define W0_SHADOW_PROTECT (0x1 << 10) +#define COMPKEY_F 0xffffff +#define ENVID_F_ON (0x1 << 0) +#define ENVID_ON (0x1 << 1) +#define CLKVAL_F 0xb +#define CLKVAL_F_OFFSET 6 + +/* + * Structure containing display panel specific data for FIMD + */ +struct exynos5_fimd_panel { + unsigned int is_dp:1; /* Display Panel interface is eDP */ + unsigned int is_mipi:1; /* Display Panel interface is MIPI */ + unsigned int fixvclk:2; /* VCLK hold scheme at data underflow */ + + /* + * Polarity of the VCLK active edge + * 0-falling + * 1-rising + */ + unsigned int ivclk:1; + unsigned int clkval_f; /* Divider to create pixel clock */ + + unsigned int upper_margin; /* Vertical Backporch */ + unsigned int lower_margin; /* Vertical frontporch */ + unsigned int vsync; /* Vertical Sync Pulse Width */ + unsigned int left_margin; /* Horizantal Backporch */ + unsigned int right_margin; /* Horizontal Frontporch */ + unsigned int hsync; /* Horizontal Sync Pulse Width */ + unsigned int xres; /* X Resolution */ + unsigned int yres; /* Y Resopultion */ +}; + +/* LCDIF Register Map */ +struct exynos5_disp_ctrl { + unsigned int vidout_con; + unsigned int vidcon1; + unsigned char res1[0x8]; + unsigned int vidtcon0; + unsigned int vidtcon1; + unsigned int vidtcon2; + unsigned int vidtcon3; + unsigned char res2[0x184]; + unsigned int trigcon; +}; + +#define VCLK_RISING_EDGE (1 << 7) +#define VCLK_RUNNING (1 << 9) + +#define CHANNEL0_EN (1 << 0) + +#define VSYNC_PULSE_WIDTH_VAL 0x3 +#define VSYNC_PULSE_WIDTH_OFFSET 0 +#define V_FRONT_PORCH_VAL 0x3 +#define V_FRONT_PORCH_OFFSET 8 +#define V_BACK_PORCH_VAL 0x3 +#define V_BACK_PORCH_OFFSET 16 + +#define HSYNC_PULSE_WIDTH_VAL 0x3 +#define HSYNC_PULSE_WIDTH_OFFSET 0 +#define H_FRONT_PORCH_VAL 0x3 +#define H_FRONT_PORCH_OFFSET 8 +#define H_BACK_PORCH_VAL 0x3 +#define H_BACK_PORCH_OFFSET 16 + +#define HOZVAL_OFFSET 0 +#define LINEVAL_OFFSET 11 + +#define BPPMODE_F_RGB_16BIT_565 0x5 +#define BPPMODE_F_OFFSET 2 +#define ENWIN_F_ENABLE (1 << 0) +#define HALF_WORD_SWAP_EN (1 << 16) + +#define OSD_RIGHTBOTX_F_OFFSET 11 +#define OSD_RIGHTBOTY_F_OFFSET 0 +#endif diff --git a/src/cpu/samsung/exynos5420/gpio.c b/src/cpu/samsung/exynos5420/gpio.c new file mode 100644 index 0000000..b8ebb0a --- /dev/null +++ b/src/cpu/samsung/exynos5420/gpio.c @@ -0,0 +1,279 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <string.h> +#include <delay.h> +#include <assert.h> +#include "gpio.h" +#include "cpu.h" + +#define CON_MASK(x) (0xf << ((x) << 2)) +#define CON_SFR(x, v) ((v) << ((x) << 2)) + +#define DAT_MASK(x) (0x1 << (x)) +#define DAT_SET(x) (0x1 << (x)) + +#define PULL_MASK(x) (0x3 << ((x) << 1)) +#define PULL_MODE(x, v) ((v) << ((x) << 1)) + +#define DRV_MASK(x) (0x3 << ((x) << 1)) +#define DRV_SET(x, m) ((m) << ((x) << 1)) +#define RATE_MASK(x) (0x1 << (x + 16)) +#define RATE_SET(x) (0x1 << (x + 16)) + +struct gpio_info { + unsigned int reg_addr; /* Address of register for this part */ + unsigned int max_gpio; /* Maximum GPIO in this part */ +}; + +static const struct gpio_info gpio_data[EXYNOS_GPIO_NUM_PARTS] = { + { EXYNOS5_GPIO_PART1_BASE, GPIO_MAX_PORT_PART_1 }, + { EXYNOS5_GPIO_PART2_BASE, GPIO_MAX_PORT_PART_2 }, + { EXYNOS5_GPIO_PART3_BASE, GPIO_MAX_PORT_PART_3 }, + { EXYNOS5_GPIO_PART4_BASE, GPIO_MAX_PORT_PART_4 }, + { EXYNOS5_GPIO_PART5_BASE, GPIO_MAX_PORT_PART_5 }, + { EXYNOS5_GPIO_PART6_BASE, GPIO_MAX_PORT }, +}; + +/* This macro gets gpio pin offset from 0..7 */ +#define GPIO_BIT(x) ((x) & 0x7) + +static struct gpio_bank *gpio_get_bank(unsigned int gpio) +{ + const struct gpio_info *data; + unsigned int upto; + int i; + + for (i = upto = 0, data = gpio_data; i < EXYNOS_GPIO_NUM_PARTS; + i++, upto = data->max_gpio, data++) { + if (gpio < data->max_gpio) { + struct gpio_bank *bank; + + bank = (struct gpio_bank *)data->reg_addr; + bank += (gpio - upto) / GPIO_PER_BANK; + return bank; + } + } + + ASSERT(gpio < GPIO_MAX_PORT); /* ...which it will not be */ + return NULL; +} + +/* Common GPIO API - only available on Exynos5 */ +void gpio_cfg_pin(int gpio, int cfg) +{ + unsigned int value; + struct gpio_bank *bank = gpio_get_bank(gpio); + + value = readl(&bank->con); + value &= ~CON_MASK(GPIO_BIT(gpio)); + value |= CON_SFR(GPIO_BIT(gpio), cfg); + writel(value, &bank->con); +} + +static int gpio_get_cfg(int gpio) +{ + struct gpio_bank *bank = gpio_get_bank(gpio); + int shift = GPIO_BIT(gpio) << 2; + + return (readl(&bank->con) & CON_MASK(GPIO_BIT(gpio))) >> shift; +} + +void gpio_set_pull(int gpio, int mode) +{ + unsigned int value; + struct gpio_bank *bank = gpio_get_bank(gpio); + + value = readl(&bank->pull); + value &= ~PULL_MASK(GPIO_BIT(gpio)); + + switch (mode) { + case GPIO_PULL_DOWN: + case GPIO_PULL_UP: + value |= PULL_MODE(GPIO_BIT(gpio), mode); + break; + default: + break; + } + + writel(value, &bank->pull); +} + +void gpio_set_drv(int gpio, int mode) +{ + unsigned int value; + struct gpio_bank *bank = gpio_get_bank(gpio); + + value = readl(&bank->drv); + value &= ~DRV_MASK(GPIO_BIT(gpio)); + + switch (mode) { + case GPIO_DRV_1X: + case GPIO_DRV_2X: + case GPIO_DRV_3X: + case GPIO_DRV_4X: + value |= DRV_SET(GPIO_BIT(gpio), mode); + break; + default: + return; + } + + writel(value, &bank->drv); +} + +void gpio_set_rate(int gpio, int mode) +{ + unsigned int value; + struct gpio_bank *bank = gpio_get_bank(gpio); + + value = readl(&bank->drv); + value &= ~RATE_MASK(GPIO_BIT(gpio)); + + switch (mode) { + case GPIO_DRV_FAST: + case GPIO_DRV_SLOW: + value |= RATE_SET(GPIO_BIT(gpio)); + break; + default: + return; + } + + writel(value, &bank->drv); +} + +int gpio_direction_input(unsigned gpio) +{ + gpio_cfg_pin(gpio, GPIO_INPUT); + + return 0; +} + +int gpio_direction_output(unsigned gpio, int value) +{ + unsigned int val; + struct gpio_bank *bank = gpio_get_bank(gpio); + + gpio_cfg_pin(gpio, GPIO_OUTPUT); + + val = readl(&bank->dat); + val &= ~DAT_MASK(GPIO_BIT(gpio)); + if (value) + val |= DAT_SET(GPIO_BIT(gpio)); + writel(val, &bank->dat); + + return 0; +} + +int gpio_get_value(unsigned gpio) +{ + unsigned int value; + struct gpio_bank *bank = gpio_get_bank(gpio); + + value = readl(&bank->dat); + return !!(value & DAT_MASK(GPIO_BIT(gpio))); +} + +int gpio_set_value(unsigned gpio, int value) +{ + unsigned int val; + struct gpio_bank *bank = gpio_get_bank(gpio); + + val = readl(&bank->dat); + val &= ~DAT_MASK(GPIO_BIT(gpio)); + if (value) + val |= DAT_SET(GPIO_BIT(gpio)); + writel(val, &bank->dat); + + return 0; +} + +/* + * Add a delay here to give the lines time to settle + * TODO(sjg): 1us does not always work, 2 is stable, so use 5 to be safe + * Come back to this and sort out what the datasheet says + */ +#define GPIO_DELAY_US 5 + +#ifndef __BOOT_BLOCK__ +/* + * FIXME(dhendrix): These functions use udelay, which has dependencies on + * pwm code and timer code. These aren't necessary for the bootblock and + * bloat the image significantly. + */ +int gpio_read_mvl3(unsigned gpio) +{ + int high, low; + enum mvl3 value; + + if (gpio >= GPIO_MAX_PORT) + return -1; + + gpio_direction_input(gpio); + gpio_set_pull(gpio, GPIO_PULL_UP); + udelay(GPIO_DELAY_US); + high = gpio_get_value(gpio); + gpio_set_pull(gpio, GPIO_PULL_DOWN); + udelay(GPIO_DELAY_US); + low = gpio_get_value(gpio); + + if (high && low) /* external pullup */ + value = LOGIC_1; + else if (!high && !low) /* external pulldown */ + value = LOGIC_0; + else /* floating */ + value = LOGIC_Z; + + /* + * Check if line is externally pulled high and + * configure the internal pullup to match. For + * floating and pulldowns, the GPIO is already + * configured with an internal pulldown from the + * above test. + */ + if (value == LOGIC_1) + gpio_set_pull(gpio, GPIO_PULL_UP); + + return value; +} +#endif /* __BOOT_BLOCK__ */ + +/* + * Display Exynos GPIO information + */ +void gpio_info(void) +{ + unsigned gpio; + + for (gpio = 0; gpio < GPIO_MAX_PORT; gpio++) { + int cfg = gpio_get_cfg(gpio); + + printk(BIOS_INFO, "GPIO_%-3d: ", gpio); + if (cfg == GPIO_INPUT) + printk(BIOS_INFO, "input"); + else if (cfg == GPIO_OUTPUT) + printk(BIOS_INFO, "output"); + else + printk(BIOS_INFO, "func %d", cfg); + + if (cfg == GPIO_INPUT || cfg == GPIO_OUTPUT) + printk(BIOS_INFO, ", value = %d", gpio_get_value(gpio)); + printk(BIOS_INFO, "\n"); + } +} diff --git a/src/cpu/samsung/exynos5420/gpio.h b/src/cpu/samsung/exynos5420/gpio.h new file mode 100644 index 0000000..0787826 --- /dev/null +++ b/src/cpu/samsung/exynos5420/gpio.h @@ -0,0 +1,578 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_GPIO_H +#define CPU_SAMSUNG_EXYNOS5420_GPIO_H + +struct gpio_bank { + unsigned int con; + unsigned int dat; + unsigned int pull; + unsigned int drv; + unsigned int pdn_con; + unsigned int pdn_pull; + unsigned char res1[8]; +}; + +/* GPIO pins per bank */ +#define GPIO_PER_BANK 8 + +/* Pin configurations */ +#define GPIO_INPUT 0x0 +#define GPIO_OUTPUT 0x1 +#define GPIO_IRQ 0xf +#define GPIO_FUNC(x) (x) + +/* Pull mode */ +#define GPIO_PULL_NONE 0x0 +#define GPIO_PULL_DOWN 0x1 +#define GPIO_PULL_UP 0x3 + +/* Drive Strength level */ +#define GPIO_DRV_1X 0x0 +#define GPIO_DRV_3X 0x1 +#define GPIO_DRV_2X 0x2 +#define GPIO_DRV_4X 0x3 +#define GPIO_DRV_FAST 0x0 +#define GPIO_DRV_SLOW 0x1 + +#define EXYNOS5_GPIO_BASE0 0x11400000 +#define EXYNOS5_GPIO_BASE1 0x13400000 +#define EXYNOS5_GPIO_BASE2 0x10d10000 +#define EXYNOS5_GPIO_BASE3 0x03860000 + +enum exynos5_gpio_port { + /* + * Ordered by base address + offset. + * ETC registers are special, thus not included. + */ + + /* base == EXYNOS_GPIO_BASE0 */ + EXYNOS5_GPA0 = EXYNOS5_GPIO_BASE0 + 0x0000, + EXYNOS5_GPA1 = EXYNOS5_GPIO_BASE0 + 0x0020, + EXYNOS5_GPA2 = EXYNOS5_GPIO_BASE0 + 0x0040, + + EXYNOS5_GPB0 = EXYNOS5_GPIO_BASE0 + 0x0060, + EXYNOS5_GPB1 = EXYNOS5_GPIO_BASE0 + 0x0080, + EXYNOS5_GPB2 = EXYNOS5_GPIO_BASE0 + 0x00a0, + EXYNOS5_GPB3 = EXYNOS5_GPIO_BASE0 + 0x00c0, + + EXYNOS5_GPC0 = EXYNOS5_GPIO_BASE0 + 0x00e0, + EXYNOS5_GPC1 = EXYNOS5_GPIO_BASE0 + 0x0100, + EXYNOS5_GPC2 = EXYNOS5_GPIO_BASE0 + 0x0120, + EXYNOS5_GPC3 = EXYNOS5_GPIO_BASE0 + 0x0140, + + EXYNOS5_GPD0 = EXYNOS5_GPIO_BASE0 + 0x0160, + EXYNOS5_GPD1 = EXYNOS5_GPIO_BASE0 + 0x0180, + + EXYNOS5_GPY0 = EXYNOS5_GPIO_BASE0 + 0x01a0, + EXYNOS5_GPY1 = EXYNOS5_GPIO_BASE0 + 0x01c0, + EXYNOS5_GPY2 = EXYNOS5_GPIO_BASE0 + 0x01e0, + EXYNOS5_GPY3 = EXYNOS5_GPIO_BASE0 + 0x0200, + EXYNOS5_GPY4 = EXYNOS5_GPIO_BASE0 + 0x0220, + EXYNOS5_GPY5 = EXYNOS5_GPIO_BASE0 + 0x0240, + EXYNOS5_GPY6 = EXYNOS5_GPIO_BASE0 + 0x0260, + + EXYNOS5_GPX0 = EXYNOS5_GPIO_BASE0 + 0x0c00, + EXYNOS5_GPX1 = EXYNOS5_GPIO_BASE0 + 0x0c20, + EXYNOS5_GPX2 = EXYNOS5_GPIO_BASE0 + 0x0c40, + EXYNOS5_GPX3 = EXYNOS5_GPIO_BASE0 + 0x0c60, + + /* base == EXYNOS_GPIO_BASE1 */ + EXYNOS5_GPE0 = EXYNOS5_GPIO_BASE1 + 0x0000, + EXYNOS5_GPE1 = EXYNOS5_GPIO_BASE1 + 0x0020, + + EXYNOS5_GPF0 = EXYNOS5_GPIO_BASE1 + 0x0040, + EXYNOS5_GPF1 = EXYNOS5_GPIO_BASE1 + 0x0060, + + EXYNOS5_GPG0 = EXYNOS5_GPIO_BASE1 + 0x0080, + EXYNOS5_GPG1 = EXYNOS5_GPIO_BASE1 + 0x00a0, + EXYNOS5_GPG2 = EXYNOS5_GPIO_BASE1 + 0x00c0, + + EXYNOS5_GPH0 = EXYNOS5_GPIO_BASE1 + 0x00e0, + EXYNOS5_GPH1 = EXYNOS5_GPIO_BASE1 + 0x0100, + + /* base == EXYNOS_GPIO_BASE2 */ + EXYNOS5_GPV0 = EXYNOS5_GPIO_BASE2 + 0x0000, + EXYNOS5_GPV1 = EXYNOS5_GPIO_BASE2 + 0x0020, + EXYNOS5_GPV2 = EXYNOS5_GPIO_BASE2 + 0x0060, + EXYNOS5_GPV3 = EXYNOS5_GPIO_BASE2 + 0x0080, + EXYNOS5_GPV4 = EXYNOS5_GPIO_BASE2 + 0x00c0, + + /* base == EXYNOS_GPIO_BASE3 */ + EXYNOS5_GPZ = EXYNOS5_GPIO_BASE3 + 0x0000, +}; + +enum { + /* GPIO banks are split into this many parts */ + EXYNOS_GPIO_NUM_PARTS = 6 +}; + +/* A list of valid GPIO numbers for the asm-generic/gpio.h interface */ +enum exynos5_gpio_pin { + /* GPIO_PART1_STARTS */ + GPIO_A00, + GPIO_A01, + GPIO_A02, + GPIO_A03, + GPIO_A04, + GPIO_A05, + GPIO_A06, + GPIO_A07, + GPIO_A10, + GPIO_A11, + GPIO_A12, + GPIO_A13, + GPIO_A14, + GPIO_A15, + GPIO_A16, + GPIO_A17, + GPIO_A20, + GPIO_A21, + GPIO_A22, + GPIO_A23, + GPIO_A24, + GPIO_A25, + GPIO_A26, + GPIO_A27, + GPIO_B00, /* 0x18 */ + GPIO_B01, + GPIO_B02, + GPIO_B03, + GPIO_B04, + GPIO_B05, + GPIO_B06, + GPIO_B07, + GPIO_B10, + GPIO_B11, + GPIO_B12, + GPIO_B13, + GPIO_B14, + GPIO_B15, + GPIO_B16, + GPIO_B17, + GPIO_B20, + GPIO_B21, + GPIO_B22, + GPIO_B23, + GPIO_B24, + GPIO_B25, + GPIO_B26, + GPIO_B27, + GPIO_B30, + GPIO_B31, + GPIO_B32, + GPIO_B33, + GPIO_B34, + GPIO_B35, + GPIO_B36, + GPIO_B37, + GPIO_C00, /* 0x38 */ + GPIO_C01, + GPIO_C02, + GPIO_C03, + GPIO_C04, + GPIO_C05, + GPIO_C06, + GPIO_C07, + GPIO_C10, + GPIO_C11, + GPIO_C12, + GPIO_C13, + GPIO_C14, + GPIO_C15, + GPIO_C16, + GPIO_C17, + GPIO_C20, + GPIO_C21, + GPIO_C22, + GPIO_C23, + GPIO_C24, + GPIO_C25, + GPIO_C26, + GPIO_C27, + GPIO_C30, + GPIO_C31, + GPIO_C32, + GPIO_C33, + GPIO_C34, + GPIO_C35, + GPIO_C36, + GPIO_C37, + GPIO_D00, /* 0x58 */ + GPIO_D01, + GPIO_D02, + GPIO_D03, + GPIO_D04, + GPIO_D05, + GPIO_D06, + GPIO_D07, + GPIO_D10, + GPIO_D11, + GPIO_D12, + GPIO_D13, + GPIO_D14, + GPIO_D15, + GPIO_D16, + GPIO_D17, + GPIO_Y00, /* 0x68 */ + GPIO_Y01, + GPIO_Y02, + GPIO_Y03, + GPIO_Y04, + GPIO_Y05, + GPIO_Y06, + GPIO_Y07, + GPIO_Y10, + GPIO_Y11, + GPIO_Y12, + GPIO_Y13, + GPIO_Y14, + GPIO_Y15, + GPIO_Y16, + GPIO_Y17, + GPIO_Y20, + GPIO_Y21, + GPIO_Y22, + GPIO_Y23, + GPIO_Y24, + GPIO_Y25, + GPIO_Y26, + GPIO_Y27, + GPIO_Y30, + GPIO_Y31, + GPIO_Y32, + GPIO_Y33, + GPIO_Y34, + GPIO_Y35, + GPIO_Y36, + GPIO_Y37, + GPIO_Y40, + GPIO_Y41, + GPIO_Y42, + GPIO_Y43, + GPIO_Y44, + GPIO_Y45, + GPIO_Y46, + GPIO_Y47, + GPIO_Y50, + GPIO_Y51, + GPIO_Y52, + GPIO_Y53, + GPIO_Y54, + GPIO_Y55, + GPIO_Y56, + GPIO_Y57, + GPIO_Y60, + GPIO_Y61, + GPIO_Y62, + GPIO_Y63, + GPIO_Y64, + GPIO_Y65, + GPIO_Y66, + GPIO_Y67, + + /* GPIO_PART2_STARTS */ + GPIO_MAX_PORT_PART_1, + GPIO_X00 = GPIO_MAX_PORT_PART_1, /* 0xa0 */ + GPIO_X01, + GPIO_X02, + GPIO_X03, + GPIO_X04, + GPIO_X05, + GPIO_X06, + GPIO_X07, + GPIO_X10, + GPIO_X11, + GPIO_X12, + GPIO_X13, + GPIO_X14, + GPIO_X15, + GPIO_X16, + GPIO_X17, + GPIO_X20, + GPIO_X21, + GPIO_X22, + GPIO_X23, + GPIO_X24, + GPIO_X25, + GPIO_X26, + GPIO_X27, + GPIO_X30, + GPIO_X31, + GPIO_X32, + GPIO_X33, + GPIO_X34, + GPIO_X35, + GPIO_X36, + GPIO_X37, + + /* GPIO_PART3_STARTS */ + GPIO_MAX_PORT_PART_2, + GPIO_E00 = GPIO_MAX_PORT_PART_2, /* 0xc0 */ + GPIO_E01, + GPIO_E02, + GPIO_E03, + GPIO_E04, + GPIO_E05, + GPIO_E06, + GPIO_E07, + GPIO_E10, + GPIO_E11, + GPIO_E12, + GPIO_E13, + GPIO_E14, + GPIO_E15, + GPIO_E16, + GPIO_E17, + GPIO_F00, /* 0xd0 */ + GPIO_F01, + GPIO_F02, + GPIO_F03, + GPIO_F04, + GPIO_F05, + GPIO_F06, + GPIO_F07, + GPIO_F10, + GPIO_F11, + GPIO_F12, + GPIO_F13, + GPIO_F14, + GPIO_F15, + GPIO_F16, + GPIO_F17, + GPIO_G00, + GPIO_G01, + GPIO_G02, + GPIO_G03, + GPIO_G04, + GPIO_G05, + GPIO_G06, + GPIO_G07, + GPIO_G10, + GPIO_G11, + GPIO_G12, + GPIO_G13, + GPIO_G14, + GPIO_G15, + GPIO_G16, + GPIO_G17, + GPIO_G20, + GPIO_G21, + GPIO_G22, + GPIO_G23, + GPIO_G24, + GPIO_G25, + GPIO_G26, + GPIO_G27, + GPIO_H00, + GPIO_H01, + GPIO_H02, + GPIO_H03, + GPIO_H04, + GPIO_H05, + GPIO_H06, + GPIO_H07, + GPIO_H10, + GPIO_H11, + GPIO_H12, + GPIO_H13, + GPIO_H14, + GPIO_H15, + GPIO_H16, + GPIO_H17, + + /* GPIO_PART4_STARTS */ + GPIO_MAX_PORT_PART_3, + GPIO_V00 = GPIO_MAX_PORT_PART_3, + GPIO_V01, + GPIO_V02, + GPIO_V03, + GPIO_V04, + GPIO_V05, + GPIO_V06, + GPIO_V07, + GPIO_V10, + GPIO_V11, + GPIO_V12, + GPIO_V13, + GPIO_V14, + GPIO_V15, + GPIO_V16, + GPIO_V17, + GPIO_V20, + GPIO_V21, + GPIO_V22, + GPIO_V23, + GPIO_V24, + GPIO_V25, + GPIO_V26, + GPIO_V27, + GPIO_V30, + GPIO_V31, + GPIO_V32, + GPIO_V33, + GPIO_V34, + GPIO_V35, + GPIO_V36, + GPIO_V37, + + /* GPIO_PART5_STARTS */ + GPIO_MAX_PORT_PART_4, + GPIO_V40 = GPIO_MAX_PORT_PART_4, + GPIO_V41, + GPIO_V42, + GPIO_V43, + GPIO_V44, + GPIO_V45, + GPIO_V46, + GPIO_V47, + + /* GPIO_PART6_STARTS */ + GPIO_MAX_PORT_PART_5, + GPIO_Z0 = GPIO_MAX_PORT_PART_5, + GPIO_Z1, + GPIO_Z2, + GPIO_Z3, + GPIO_Z4, + GPIO_Z5, + GPIO_Z6, + GPIO_MAX_PORT +}; + +/** + * Set GPIO pin configuration. + * + * @param gpio GPIO pin + * @param cfg Either GPIO_INPUT, GPIO_OUTPUT, or GPIO_IRQ + */ +void gpio_cfg_pin(int gpio, int cfg); + +/** + * Set GPIO pull mode. + * + * @param gpio GPIO pin + * @param mode Either GPIO_PULL_DOWN or GPIO_PULL_UP + */ +void gpio_set_pull(int gpio, int mode); + +/** + * Set GPIO drive strength level. + * + * @param gpio GPIO pin + * @param mode Either GPIO_DRV_1X, GPIO_DRV_2X, GPIO_DRV_3X, or GPIO_DRV_4X + */ +void gpio_set_drv(int gpio, int mode); + +/** + * Set GPIO drive rate. + * + * @param gpio GPIO pin + * @param mode Either GPIO_DRV_FAST or GPIO_DRV_SLOW + */ +void gpio_set_rate(int gpio, int mode); + +/* + * reads only a single GPIO + * + * @param gpio GPIO to read + * @return -1 if the value cannot be determined. Otherwise returns + * the corresponding MVL3 enum value. + */ +int gpio_read_mvl3(unsigned gpio); + +void gpio_info(void); + +/* + * Generic GPIO API for U-Boot + * + * GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined + * by the SOC/architecture. + * + * Each GPIO can be an input or output. If an input then its value can + * be read as 0 or 1. If an output then its value can be set to 0 or 1. + * If you try to write an input then the value is undefined. If you try + * to read an output, barring something very unusual, you will get + * back the value of the output that you previously set. + * + * In some cases the operation may fail, for example if the GPIO number + * is out of range, or the GPIO is not available because its pin is + * being used by another function. In that case, functions may return + * an error value of -1. + */ + +/** + * Make a GPIO an input. + * + * @param gpio GPIO number + * @return 0 if ok, -1 on error + */ +int gpio_direction_input(unsigned gpio); + +/** + * Make a GPIO an output, and set its value. + * + * @param gpio GPIO number + * @param value GPIO value (0 for low or 1 for high) + * @return 0 if ok, -1 on error + */ +int gpio_direction_output(unsigned gpio, int value); + +/** + * Get a GPIO's value. This will work whether the GPIO is an input + * or an output. + * + * @param gpio GPIO number + * @return 0 if low, 1 if high, -1 on error + */ +int gpio_get_value(unsigned gpio); + +/** + * Set an output GPIO's value. The GPIO must already be an output or + * this function may have no effect. + * + * @param gpio GPIO number + * @param value GPIO value (0 for low or 1 for high) + * @return 0 if ok, -1 on error + */ +int gpio_set_value(unsigned gpio, int value); + +/* + * Many-value logic (3 states). This can be used for inputs whereby presence + * of external pull-up or pull-down resistors can be added to overcome internal + * pull-ups/pull-downs and force a single value. + * + * Thus, external pull resistors can force a 0 or 1 and if the value changes + * along with internal pull-up/down enable then the input is floating. + * + * Vpd | Vpu | MVL + * ----------------- + * 0 | 0 | 0 + * ----------------- + * 0 | 1 | Z <-- floating input will follow internal pull up/down + * ----------------- + * 1 | 1 | 1 + */ +enum mvl3 { + LOGIC_0, + LOGIC_1, + LOGIC_Z, /* high impedence / tri-stated / floating */ +}; + +#endif /* CPU_SAMSUNG_EXYNOS5420_GPIO_H */ diff --git a/src/cpu/samsung/exynos5420/i2c.c b/src/cpu/samsung/exynos5420/i2c.c new file mode 100644 index 0000000..98eb641 --- /dev/null +++ b/src/cpu/samsung/exynos5420/i2c.c @@ -0,0 +1,405 @@ +/* + * This file is part of the coreboot project. + * + * (C) Copyright 2002 + * David Mueller, ELSOFT AG, d.mueller@elsoft.ch + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <delay.h> +#include <arch/io.h> +#include <device/i2c.h> +#include "clk.h" +#include "i2c.h" +#include "pinmux.h" + +#define I2C_WRITE 0 +#define I2C_READ 1 + +#define I2C_OK 0 +#define I2C_NOK 1 +#define I2C_NACK 2 +#define I2C_NOK_LA 3 /* Lost arbitration */ +#define I2C_NOK_TOUT 4 /* time out */ + +#define I2CSTAT_BSY 0x20 /* Busy bit */ +#define I2CSTAT_NACK 0x01 /* Nack bit */ +#define I2CCON_ACKGEN 0x80 /* Acknowledge generation */ +#define I2CCON_IRPND 0x10 /* Interrupt pending bit */ +#define I2C_MODE_MT 0xC0 /* Master Transmit Mode */ +#define I2C_MODE_MR 0x80 /* Master Receive Mode */ +#define I2C_START_STOP 0x20 /* START / STOP */ +#define I2C_TXRX_ENA 0x10 /* I2C Tx/Rx enable */ + +/* The timeouts we live by */ +enum { + I2C_XFER_TIMEOUT_MS = 35, /* xfer to complete */ + I2C_INIT_TIMEOUT_MS = 1000, /* bus free on init */ + I2C_IDLE_TIMEOUT_MS = 100, /* waiting for bus idle */ + I2C_STOP_TIMEOUT_US = 200, /* waiting for stop events */ +}; + +static struct s3c24x0_i2c_bus i2c_buses[] = { + { + .bus_num = 0, + .regs = (struct s3c24x0_i2c *)0x12c60000, + .periph_id = PERIPH_ID_I2C0, + }, + { + .bus_num = 1, + .regs = (struct s3c24x0_i2c *)0x12c70000, + .periph_id = PERIPH_ID_I2C1, + }, + { + .bus_num = 2, + .regs = (struct s3c24x0_i2c *)0x12c80000, + .periph_id = PERIPH_ID_I2C2, + }, + { + .bus_num = 3, + .regs = (struct s3c24x0_i2c *)0x12c90000, + .periph_id = PERIPH_ID_I2C3, + }, + { + .bus_num = 4, + .regs = (struct s3c24x0_i2c *)0x12ca0000, + .periph_id = PERIPH_ID_I2C4, + }, + { + .bus_num = 5, + .regs = (struct s3c24x0_i2c *)0x12cb0000, + .periph_id = PERIPH_ID_I2C5, + }, + { + .bus_num = 6, + .regs = (struct s3c24x0_i2c *)0x12cc0000, + .periph_id = PERIPH_ID_I2C6, + }, + { + .bus_num = 7, + .regs = (struct s3c24x0_i2c *)0x12cd0000, + .periph_id = PERIPH_ID_I2C7, + }, +}; + +static int WaitForXfer(struct s3c24x0_i2c *i2c) +{ + int i; + + i = I2C_XFER_TIMEOUT_MS * 20; + while (!(readl(&i2c->iiccon) & I2CCON_IRPND)) { + if (i == 0) { + printk(BIOS_ERR, "%s: i2c xfer timeout\n", __func__); + return I2C_NOK_TOUT; + } + udelay(50); + i--; + } + + return I2C_OK; +} + +static int IsACK(struct s3c24x0_i2c *i2c) +{ + return !(readl(&i2c->iicstat) & I2CSTAT_NACK); +} + +static void ReadWriteByte(struct s3c24x0_i2c *i2c) +{ + uint32_t x; + + x = readl(&i2c->iiccon); + writel(x & ~I2CCON_IRPND, &i2c->iiccon); +} + +static void i2c_ch_init(struct s3c24x0_i2c_bus *bus, int speed, int slaveadd) +{ + unsigned long freq, pres = 16, div; + unsigned long val; + + freq = clock_get_periph_rate(bus->periph_id); + /* calculate prescaler and divisor values */ + if ((freq / pres / (16 + 1)) > speed) + /* set prescaler to 512 */ + pres = 512; + + div = 0; + + while ((freq / pres / (div + 1)) > speed) + div++; + + /* set prescaler, divisor according to freq, also set ACKGEN, IRQ */ + val = (div & 0x0F) | 0xA0 | ((pres == 512) ? 0x40 : 0); + writel(val, &bus->regs->iiccon); + + /* init to SLAVE RECEIVE mode and clear I2CADDn */ + writel(0, &bus->regs->iicstat); + writel(slaveadd, &bus->regs->iicadd); + /* program Master Transmit (and implicit STOP) */ + writel(I2C_MODE_MT | I2C_TXRX_ENA, &bus->regs->iicstat); +} + +/* + * MULTI BUS I2C support + */ +static void i2c_bus_init(struct s3c24x0_i2c_bus *bus, int speed, int slaveadd) +{ + exynos_pinmux_config(bus->periph_id, 0); + i2c_ch_init(bus, speed, slaveadd); +} + +/* + * Verify the whether I2C ACK was received or not + * + * @param i2c pointer to I2C register base + * @param buf array of data + * @param len length of data + * return I2C_OK when transmission done + * I2C_NACK otherwise + */ +static int i2c_send_verify(struct s3c24x0_i2c *i2c, unsigned char buf[], + unsigned char len) +{ + int i, result = I2C_OK; + + if (IsACK(i2c)) { + for (i = 0; (i < len) && (result == I2C_OK); i++) { + writel(buf[i], &i2c->iicds); + ReadWriteByte(i2c); + result = WaitForXfer(i2c); + if (result == I2C_OK && !IsACK(i2c)) + result = I2C_NACK; + } + } else { + result = I2C_NACK; + } + + return result; +} + +void i2c_init(unsigned bus_num, int speed, int slaveadd) +{ + struct s3c24x0_i2c_bus *i2c; + int i; + + i2c = &i2c_buses[bus_num]; + i2c_bus_init(i2c, speed, slaveadd); + + /* wait for some time to give previous transfer a chance to finish */ + i = I2C_INIT_TIMEOUT_MS * 20; + while ((readl(&i2c->regs->iicstat) & I2CSTAT_BSY) && (i > 0)) { + udelay(50); + i--; + } + + i2c_ch_init(i2c, speed, slaveadd); +} + +/* + * Send a STOP event and wait for it to have completed + * + * @param mode If it is a master transmitter or receiver + * @return I2C_OK if the line became idle before timeout I2C_NOK_TOUT otherwise + */ +static int i2c_send_stop(struct s3c24x0_i2c *i2c, int mode) +{ + int timeout; + + /* Setting the STOP event to fire */ + writel(mode | I2C_TXRX_ENA, &i2c->iicstat); + ReadWriteByte(i2c); + + /* Wait for the STOP to send and the bus to go idle */ + for (timeout = I2C_STOP_TIMEOUT_US; timeout > 0; timeout -= 5) { + if (!(readl(&i2c->iicstat) & I2CSTAT_BSY)) + return I2C_OK; + udelay(5); + } + + return I2C_NOK_TOUT; +} + +/* + * cmd_type is 0 for write, 1 for read. + * + * addr_len can take any value from 0-255, it is only limited + * by the char, we could make it larger if needed. If it is + * 0 we skip the address write cycle. + */ +static int i2c_transfer(struct s3c24x0_i2c *i2c, + unsigned char cmd_type, + unsigned char chip, + unsigned char addr[], + unsigned char addr_len, + unsigned char data[], + unsigned short data_len) +{ + int i, result, stop_bit_result; + uint32_t x; + + if (data == 0 || data_len == 0) { + /* Don't support data transfer of no length or to address 0 */ + printk(BIOS_ERR, "i2c_transfer: bad call\n"); + return I2C_NOK; + } + + /* Check I2C bus idle */ + i = I2C_IDLE_TIMEOUT_MS * 20; + while ((readl(&i2c->iicstat) & I2CSTAT_BSY) && (i > 0)) { + udelay(50); + i--; + } + + if (readl(&i2c->iicstat) & I2CSTAT_BSY) { + printk(BIOS_ERR, "%s: bus busy\n", __func__); + return I2C_NOK_TOUT; + } + + x = readl(&i2c->iiccon); + writel(x | I2CCON_ACKGEN, &i2c->iiccon); + + if (addr && addr_len) { + writel(chip, &i2c->iicds); + /* send START */ + writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP, + &i2c->iicstat); + if (WaitForXfer(i2c) == I2C_OK) + result = i2c_send_verify(i2c, addr, addr_len); + else + result = I2C_NACK; + } else + result = I2C_NACK; + + switch (cmd_type) { + case I2C_WRITE: + if (result == I2C_OK) + result = i2c_send_verify(i2c, data, data_len); + else { + writel(chip, &i2c->iicds); + /* send START */ + writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP, + &i2c->iicstat); + if (WaitForXfer(i2c) == I2C_OK) + result = i2c_send_verify(i2c, data, data_len); + } + + if (result == I2C_OK) + result = WaitForXfer(i2c); + + stop_bit_result = i2c_send_stop(i2c, I2C_MODE_MT); + break; + + case I2C_READ: + { + int was_ok = (result == I2C_OK); + + writel(chip, &i2c->iicds); + /* resend START */ + writel(I2C_MODE_MR | I2C_TXRX_ENA | + I2C_START_STOP, &i2c->iicstat); + ReadWriteByte(i2c); + result = WaitForXfer(i2c); + + if (was_ok || IsACK(i2c)) { + i = 0; + while ((i < data_len) && (result == I2C_OK)) { + /* disable ACK for final READ */ + if (i == data_len - 1) { + x = readl(&i2c->iiccon) & ~I2CCON_ACKGEN; + writel(x, &i2c->iiccon); + } + ReadWriteByte(i2c); + result = WaitForXfer(i2c); + data[i] = readl(&i2c->iicds); + i++; + } + } else { + result = I2C_NACK; + } + + stop_bit_result = i2c_send_stop(i2c, I2C_MODE_MR); + break; + } + + default: + printk(BIOS_ERR, "i2c_transfer: bad call\n"); + result = stop_bit_result = I2C_NOK; + break; + } + + /* + * If the transmission went fine, then only the stop bit was left to + * fail. Otherwise, the real failure we're interested in came before + * that, during the actual transmission. + */ + return (result == I2C_OK) ? stop_bit_result : result; +} + +int i2c_read(unsigned bus, unsigned chip, unsigned addr, + unsigned alen, unsigned char *buf, unsigned len) +{ + struct s3c24x0_i2c_bus *i2c; + unsigned char xaddr[4]; + int ret; + + if (alen > 4) { + printk(BIOS_ERR, "I2C read: addr len %d not supported\n", alen); + return 1; + } + + if (alen > 0) { + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + } + + i2c = &i2c_buses[bus]; + ret = i2c_transfer(i2c->regs, I2C_READ, chip << 1, &xaddr[4 - alen], + alen, buf, len); + if (ret) { + printk(BIOS_ERR, "I2c read: failed %d\n", ret); + return 1; + } + return 0; +} + +int i2c_write(unsigned bus, unsigned chip, unsigned addr, + unsigned alen, unsigned char *buf, unsigned len) +{ + struct s3c24x0_i2c_bus *i2c; + unsigned char xaddr[4]; + int ret; + + if (alen > 4) { + printk(BIOS_ERR, "I2C write: addr len %d not supported\n", + alen); + return 1; + } + + if (alen > 0) { + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + } + + i2c = &i2c_buses[bus]; + ret = i2c_transfer(i2c->regs, I2C_WRITE, chip << 1, &xaddr[4 - alen], + alen, buf, len); + + return ret != 0; +} diff --git a/src/cpu/samsung/exynos5420/i2c.h b/src/cpu/samsung/exynos5420/i2c.h new file mode 100644 index 0000000..b14aa79 --- /dev/null +++ b/src/cpu/samsung/exynos5420/i2c.h @@ -0,0 +1,41 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_I2C_H +#define CPU_SAMSUNG_EXYNOS5420_I2C_H + +#include "periph.h" + +struct s3c24x0_i2c { + u32 iiccon; + u32 iicstat; + u32 iicadd; + u32 iicds; + u32 iiclc; +}; + +struct s3c24x0_i2c_bus { + int bus_num; + struct s3c24x0_i2c *regs; + enum periph_id periph_id; +}; + +void i2c_init(unsigned bus, int speed, int slaveadd); + +#endif /* CPU_SAMSUNG_EXYNOS5420_I2C_H */ diff --git a/src/cpu/samsung/exynos5420/i2s-regs.h b/src/cpu/samsung/exynos5420/i2s-regs.h new file mode 100644 index 0000000..28d2685 --- /dev/null +++ b/src/cpu/samsung/exynos5420/i2s-regs.h @@ -0,0 +1,142 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Taken from the kernel code */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H +#define CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H + +#define I2SCON 0x0 +#define I2SMOD 0x4 +#define I2SFIC 0x8 +#define I2SPSR 0xc +#define I2STXD 0x10 +#define I2SRXD 0x14 +#define I2SFICS 0x18 +#define I2STXDS 0x1c +#define I2SAHB 0x20 +#define I2SSTR0 0x24 +#define I2SSIZE 0x28 +#define I2STRNCNT 0x2c +#define I2SLVL0ADDR 0x30 +#define I2SLVL1ADDR 0x34 +#define I2SLVL2ADDR 0x38 +#define I2SLVL3ADDR 0x3c + +#define CON_RSTCLR (1 << 31) +#define CON_FRXOFSTATUS (1 << 26) +#define CON_FRXORINTEN (1 << 25) +#define CON_FTXSURSTAT (1 << 24) +#define CON_FTXSURINTEN (1 << 23) +#define CON_TXSDMA_PAUSE (1 << 20) +#define CON_TXSDMA_ACTIVE (1 << 18) + +#define CON_FTXURSTATUS (1 << 17) +#define CON_FTXURINTEN (1 << 16) +#define CON_TXFIFO2_EMPTY (1 << 15) +#define CON_TXFIFO1_EMPTY (1 << 14) +#define CON_TXFIFO2_FULL (1 << 13) +#define CON_TXFIFO1_FULL (1 << 12) + +#define CON_LRINDEX (1 << 11) +#define CON_TXFIFO_EMPTY (1 << 10) +#define CON_RXFIFO_EMPTY (1 << 9) +#define CON_TXFIFO_FULL (1 << 8) +#define CON_RXFIFO_FULL (1 << 7) +#define CON_TXDMA_PAUSE (1 << 6) +#define CON_RXDMA_PAUSE (1 << 5) +#define CON_TXCH_PAUSE (1 << 4) +#define CON_RXCH_PAUSE (1 << 3) +#define CON_TXDMA_ACTIVE (1 << 2) +#define CON_RXDMA_ACTIVE (1 << 1) +#define CON_ACTIVE (1 << 0) + +#define MOD_OPCLK_CDCLK_OUT (0 << 30) +#define MOD_OPCLK_CDCLK_IN (1 << 30) +#define MOD_OPCLK_BCLK_OUT (2 << 30) +#define MOD_OPCLK_PCLK (3 << 30) +#define MOD_OPCLK_MASK (3 << 30) +#define MOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */ + +#define MOD_BLCS_SHIFT 26 +#define MOD_BLCS_16BIT (0 << MOD_BLCS_SHIFT) +#define MOD_BLCS_8BIT (1 << MOD_BLCS_SHIFT) +#define MOD_BLCS_24BIT (2 << MOD_BLCS_SHIFT) +#define MOD_BLCS_MASK (3 << MOD_BLCS_SHIFT) + +#define MOD_BLCP_SHIFT 24 +#define MOD_BLCP_16BIT (0 << MOD_BLCP_SHIFT) +#define MOD_BLCP_8BIT (1 << MOD_BLCP_SHIFT) +#define MOD_BLCP_24BIT (2 << MOD_BLCP_SHIFT) +#define MOD_BLCP_MASK (3 << MOD_BLCP_SHIFT) + +#define MOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */ +#define MOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */ +#define MOD_C1DD_HHALF (1 << 19) +#define MOD_C1DD_LHALF (1 << 18) +#define MOD_DC2_EN (1 << 17) +#define MOD_DC1_EN (1 << 16) +#define MOD_BLC_16BIT (0 << 13) +#define MOD_BLC_8BIT (1 << 13) +#define MOD_BLC_24BIT (2 << 13) +#define MOD_BLC_MASK (3 << 13) + +#define MOD_IMS_SYSMUX (1 << 10) +#define MOD_SLAVE (1 << 11) +#define MOD_TXONLY (0 << 8) +#define MOD_RXONLY (1 << 8) +#define MOD_TXRX (2 << 8) +#define MOD_MASK (3 << 8) +#define MOD_LR_LLOW (0 << 7) +#define MOD_LR_RLOW (1 << 7) +#define MOD_SDF_IIS (0 << 5) +#define MOD_SDF_MSB (1 << 5) +#define MOD_SDF_LSB (2 << 5) +#define MOD_SDF_MASK (3 << 5) +#define MOD_RCLK_256FS (0 << 3) +#define MOD_RCLK_512FS (1 << 3) +#define MOD_RCLK_384FS (2 << 3) +#define MOD_RCLK_768FS (3 << 3) +#define MOD_RCLK_MASK (3 << 3) +#define MOD_BCLK_32FS (0 << 1) +#define MOD_BCLK_48FS (1 << 1) +#define MOD_BCLK_16FS (2 << 1) +#define MOD_BCLK_24FS (3 << 1) +#define MOD_BCLK_MASK (3 << 1) +#define MOD_8BIT (1 << 0) + +#define MOD_CDCLKCON (1 << 12) + +#define PSR_PSREN (1 << 15) + +#define FIC_TXFLUSH (1 << 15) +#define FIC_RXFLUSH (1 << 7) + +#define AHB_INTENLVL0 (1 << 24) +#define AHB_LVL0INT (1 << 20) +#define AHB_CLRLVL0INT (1 << 16) +#define AHB_DMARLD (1 << 5) +#define AHB_INTMASK (1 << 3) +#define AHB_DMAEN (1 << 0) +#define AHB_LVLINTMASK (0xf << 20) + +#define I2SSIZE_TRNMSK (0xffff) +#define I2SSIZE_SHIFT (16) + +#endif /* CPU_SAMSUNG_EXYNOS5420_I2S_REGS_H */ diff --git a/src/cpu/samsung/exynos5420/mct.c b/src/cpu/samsung/exynos5420/mct.c new file mode 100644 index 0000000..4c5cdd1 --- /dev/null +++ b/src/cpu/samsung/exynos5420/mct.c @@ -0,0 +1,104 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <arch/io.h> +#include "clk.h" + +struct __attribute__((packed)) mct_regs +{ + uint32_t mct_cfg; + uint8_t reserved0[0xfc]; + uint32_t g_cnt_l; + uint32_t g_cnt_u; + uint8_t reserved1[0x8]; + uint32_t g_cnt_wstat; + uint8_t reserved2[0xec]; + uint32_t g_comp0_l; + uint32_t g_comp0_u; + uint32_t g_comp0_addr_incr; + uint8_t reserved3[0x4]; + uint32_t g_comp1_l; + uint32_t g_comp1_u; + uint32_t g_comp1_addr_incr; + uint8_t reserved4[0x4]; + uint32_t g_comp2_l; + uint32_t g_comp2_u; + uint32_t g_comp2_addr_incr; + uint8_t reserved5[0x4]; + uint32_t g_comp3_l; + uint32_t g_comp3_u; + uint32_t g_comp3_addr_incr; + uint8_t reserved6[0x4]; + uint32_t g_tcon; + uint32_t g_int_cstat; + uint32_t g_int_enb; + uint32_t g_wstat; + uint8_t reserved7[0xb0]; + uint32_t l0_tcntb; + uint32_t l0_tcnto; + uint32_t l0_icntb; + uint32_t l0_icnto; + uint32_t l0_frcntb; + uint32_t l0_frcnto; + uint8_t reserved8[0x8]; + uint32_t l0_tcon; + uint8_t reserved9[0xc]; + uint32_t l0_int_cstat; + uint32_t l0_int_enb; + uint8_t reserved10[0x8]; + uint32_t l0_wstat; + uint8_t reserved11[0xbc]; + uint32_t l1_tcntb; + uint32_t l1_tcnto; + uint32_t l1_icntb; + uint32_t l1_icnto; + uint32_t l1_frcntb; + uint32_t l1_frcnto; + uint8_t reserved12[0x8]; + uint32_t l1_tcon; + uint8_t reserved13[0xc]; + uint32_t l1_int_cstat; + uint32_t l1_int_enb; + uint8_t reserved14[0x8]; + uint32_t l1_wstat; +}; + +static int enabled = 0; +static struct mct_regs *const mct = + (struct mct_regs *)MCT_ADDRESS; + +uint64_t mct_raw_value(void) +{ + if (!enabled) { + writel(readl(&mct->g_tcon) | (0x1 << 8), &mct->g_tcon); + enabled = 1; + } + + uint64_t upper = readl(&mct->g_cnt_u); + uint64_t lower = readl(&mct->g_cnt_l); + + return (upper << 32) | lower; +} + +void mct_start(void) +{ + writel(readl(&mct->g_tcon) | (0x1 << 8), &mct->g_tcon); + enabled = 1; +} diff --git a/src/cpu/samsung/exynos5420/monotonic_timer.c b/src/cpu/samsung/exynos5420/monotonic_timer.c new file mode 100644 index 0000000..6350af5 --- /dev/null +++ b/src/cpu/samsung/exynos5420/monotonic_timer.c @@ -0,0 +1,57 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <delay.h> +#include <timer.h> + +#include "clk.h" + +static struct monotonic_counter { + int initialized; + struct mono_time time; + uint64_t last_value; +} mono_counter; + +static const uint32_t clocks_per_usec = MCT_HZ/1000000; + +void timer_monotonic_get(struct mono_time *mt) +{ + uint64_t current_tick; + uint64_t usecs_elapsed; + + if (!mono_counter.initialized) { + init_timer(); + mono_counter.last_value = mct_raw_value(); + mono_counter.initialized = 1; + } + + current_tick = mct_raw_value(); + usecs_elapsed = (current_tick - mono_counter.last_value) / + clocks_per_usec; + + /* Update current time and tick values only if a full tick occurred. */ + if (usecs_elapsed) { + mono_time_add_usecs(&mono_counter.time, usecs_elapsed); + mono_counter.last_value = current_tick; + } + + /* Save result. */ + *mt = mono_counter.time; +} diff --git a/src/cpu/samsung/exynos5420/periph.h b/src/cpu/samsung/exynos5420/periph.h new file mode 100644 index 0000000..3981662 --- /dev/null +++ b/src/cpu/samsung/exynos5420/periph.h @@ -0,0 +1,69 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_PERIPH_H +#define CPU_SAMSUNG_EXYNOS5420_PERIPH_H + +/* + * Peripherals requiring clock/pinmux configuration. List will + * grow with support for more devices getting added. + * + * At present the order is arbitrary - we may be able to take advantage + * of some orthogonality later. + */ +enum periph_id { + PERIPH_ID_UART0, + PERIPH_ID_UART1, + PERIPH_ID_UART2, + PERIPH_ID_UART3, + PERIPH_ID_SDMMC0, + PERIPH_ID_SDMMC1, + PERIPH_ID_SDMMC2, + PERIPH_ID_SDMMC3, + + PERIPH_ID_SROMC = 9, + PERIPH_ID_SPI0, + PERIPH_ID_SPI1, + PERIPH_ID_SPI2, + PERIPH_ID_SPI3, + PERIPH_ID_SPI4, + PERIPH_ID_LCD, + PERIPH_ID_BACKLIGHT, + PERIPH_ID_I2C0, + PERIPH_ID_I2C1, + PERIPH_ID_I2C2, + PERIPH_ID_I2C3, + PERIPH_ID_I2C4, + PERIPH_ID_I2C5, + PERIPH_ID_I2C6, + PERIPH_ID_I2C7, + PERIPH_ID_DPHPD, /* eDP hot plug detect */ + PERIPH_ID_PWM0, + PERIPH_ID_PWM1, + PERIPH_ID_PWM2, + PERIPH_ID_PWM3, + PERIPH_ID_PWM4, + PERIPH_ID_I2S1, + PERIPH_ID_SATA, + + PERIPH_ID_COUNT, + PERIPH_ID_NONE = -1, +}; + +#endif diff --git a/src/cpu/samsung/exynos5420/pinmux.c b/src/cpu/samsung/exynos5420/pinmux.c new file mode 100644 index 0000000..6991dfc --- /dev/null +++ b/src/cpu/samsung/exynos5420/pinmux.c @@ -0,0 +1,298 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <assert.h> +#include "gpio.h" +#include "cpu.h" +#include "pinmux.h" + +int exynos_pinmux_config(enum periph_id peripheral, int flags) +{ + int i, start, count, start_ext, pin_ext, pin, drv; + + switch (peripheral) { + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART2: + case PERIPH_ID_UART3: + switch (peripheral) { + default: + case PERIPH_ID_UART0: + start = GPIO_A00; count = 4; + break; + case PERIPH_ID_UART1: + start = GPIO_A04; count = 4; + break; + case PERIPH_ID_UART2: + start = GPIO_A10; count = 4; + break; + case PERIPH_ID_UART3: + start = GPIO_A14; count = 2; + break; + } + for (i = start; i < start + count; i++) { + gpio_set_pull(i, GPIO_PULL_NONE); + gpio_cfg_pin(i, GPIO_FUNC(0x2)); + } + break; + case PERIPH_ID_SDMMC0: + case PERIPH_ID_SDMMC1: + case PERIPH_ID_SDMMC2: + case PERIPH_ID_SDMMC3: + pin = GPIO_FUNC(0x2); + pin_ext = GPIO_FUNC(0x2); + drv = GPIO_DRV_4X; + switch (peripheral) { + default: + case PERIPH_ID_SDMMC0: + start = GPIO_C00; + start_ext = GPIO_C10; + break; + case PERIPH_ID_SDMMC1: + start = GPIO_C20; + start_ext = 0; + break; + case PERIPH_ID_SDMMC2: + start = GPIO_C30; + /* + * TODO: (alim.akhtar@samsung.com) + * add support for 8 bit mode (needs to be a per-board + * option, so in the FDT). + */ + start_ext = 0; + break; + case PERIPH_ID_SDMMC3: + /* + * TODO: Need to add defintions for GPC4 before + * enabling this. + */ + printk(BIOS_DEBUG, "SDMMC3 not supported yet"); + return -1; + } + if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) { + printk(BIOS_DEBUG, "SDMMC device %d does not support 8bit mode", + peripheral); + return -1; + } + if (flags & PINMUX_FLAG_8BIT_MODE) { + ASSERT(peripheral == PERIPH_ID_SDMMC0); + for (i = 0; i <= 3; i++) { + gpio_cfg_pin(start_ext + i, pin_ext); + gpio_set_pull(start_ext + i, + GPIO_PULL_UP); + gpio_set_drv(start_ext + i, drv); + } + } + for (i = 0; i < 2; i++) { + gpio_cfg_pin(start + i, pin); + gpio_set_pull(start + i, GPIO_PULL_NONE); + gpio_set_drv(start + i, drv); + } + for (i = 2; i <= 6; i++) { + gpio_cfg_pin(start + i, pin); + gpio_set_pull(start + i, GPIO_PULL_UP); + gpio_set_drv(start + i, drv); + } + break; + case PERIPH_ID_SROMC: + /* + * SROM:CS1 and EBI + * + * GPY0[0] SROM_CSn[0] + * GPY0[1] SROM_CSn[1](2) + * GPY0[2] SROM_CSn[2] + * GPY0[3] SROM_CSn[3] + * GPY0[4] EBI_OEn(2) + * GPY0[5] EBI_EEn(2) + * + * GPY1[0] EBI_BEn[0](2) + * GPY1[1] EBI_BEn[1](2) + * GPY1[2] SROM_WAIT(2) + * GPY1[3] EBI_DATA_RDn(2) + */ + gpio_cfg_pin(GPIO_Y00 + (flags & PINMUX_FLAG_BANK), + GPIO_FUNC(2)); + gpio_cfg_pin(GPIO_Y04, GPIO_FUNC(2)); + gpio_cfg_pin(GPIO_Y05, GPIO_FUNC(2)); + + for (i = 2; i < 4; i++) + gpio_cfg_pin(GPIO_Y10 + i, GPIO_FUNC(2)); + + /* + * EBI: 8 Addrss Lines + * + * GPY3[0] EBI_ADDR[0](2) + * GPY3[1] EBI_ADDR[1](2) + * GPY3[2] EBI_ADDR[2](2) + * GPY3[3] EBI_ADDR[3](2) + * GPY3[4] EBI_ADDR[4](2) + * GPY3[5] EBI_ADDR[5](2) + * GPY3[6] EBI_ADDR[6](2) + * GPY3[7] EBI_ADDR[7](2) + * + * EBI: 16 Data Lines + * + * GPY5[0] EBI_DATA[0](2) + * GPY5[1] EBI_DATA[1](2) + * GPY5[2] EBI_DATA[2](2) + * GPY5[3] EBI_DATA[3](2) + * GPY5[4] EBI_DATA[4](2) + * GPY5[5] EBI_DATA[5](2) + * GPY5[6] EBI_DATA[6](2) + * GPY5[7] EBI_DATA[7](2) + * + * GPY6[0] EBI_DATA[8](2) + * GPY6[1] EBI_DATA[9](2) + * GPY6[2] EBI_DATA[10](2) + * GPY6[3] EBI_DATA[11](2) + * GPY6[4] EBI_DATA[12](2) + * GPY6[5] EBI_DATA[13](2) + * GPY6[6] EBI_DATA[14](2) + * GPY6[7] EBI_DATA[15](2) + */ + for (i = 0; i < 8; i++) { + gpio_cfg_pin(GPIO_Y30 + i, GPIO_FUNC(2)); + gpio_set_pull(GPIO_Y30 + i, GPIO_PULL_UP); + + gpio_cfg_pin(GPIO_Y50 + i, GPIO_FUNC(2)); + gpio_set_pull(GPIO_Y50 + i, GPIO_PULL_UP); + + if (flags & PINMUX_FLAG_16BIT) { + gpio_cfg_pin(GPIO_Y60 + i, GPIO_FUNC(2)); + gpio_set_pull(GPIO_Y60 + i, + GPIO_PULL_UP); + } + } + break; + case PERIPH_ID_SPI0: + case PERIPH_ID_SPI1: + case PERIPH_ID_SPI2: + case PERIPH_ID_SPI3: { + int cfg; + + switch (peripheral) { + default: + case PERIPH_ID_SPI0: + start = GPIO_A20; + cfg = 0x2; + break; + case PERIPH_ID_SPI1: + start = GPIO_A24; + cfg = 0x2; + break; + case PERIPH_ID_SPI2: + start = GPIO_B11; + cfg = 0x5; + break; + case PERIPH_ID_SPI3: + start = GPIO_E00; + cfg = 0x2; + break; + } + + for (i = 0; i < 4; i++) + gpio_cfg_pin(start + i, GPIO_FUNC(cfg)); + break; + } + case PERIPH_ID_SPI4: + for (i = 0; i < 2; i++) + gpio_cfg_pin(GPIO_F02 + i, GPIO_FUNC(0x4)); + for (i = 2; i < 4; i++) + gpio_cfg_pin(GPIO_E02 + i, GPIO_FUNC(0x4)); + break; + case PERIPH_ID_BACKLIGHT: + gpio_cfg_pin(GPIO_B20, GPIO_OUTPUT); + gpio_set_value(GPIO_B20, 1); + break; + case PERIPH_ID_LCD: + gpio_cfg_pin(GPIO_Y25, GPIO_OUTPUT); + gpio_set_value(GPIO_Y25, 1); + gpio_cfg_pin(GPIO_X15, GPIO_OUTPUT); + gpio_set_value(GPIO_X15, 1); + gpio_cfg_pin(GPIO_X30, GPIO_OUTPUT); + gpio_set_value(GPIO_X30, 1); + break; + case PERIPH_ID_I2C0: + gpio_cfg_pin(GPIO_B30, GPIO_FUNC(0x2)); + gpio_cfg_pin(GPIO_B31, GPIO_FUNC(0x2)); + gpio_set_pull(GPIO_B30, GPIO_PULL_NONE); + gpio_set_pull(GPIO_B31, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C1: + gpio_cfg_pin(GPIO_B32, GPIO_FUNC(0x2)); + gpio_cfg_pin(GPIO_B33, GPIO_FUNC(0x2)); + gpio_set_pull(GPIO_B32, GPIO_PULL_NONE); + gpio_set_pull(GPIO_B33, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C2: + gpio_cfg_pin(GPIO_A06, GPIO_FUNC(0x3)); + gpio_cfg_pin(GPIO_A07, GPIO_FUNC(0x3)); + gpio_set_pull(GPIO_A06, GPIO_PULL_NONE); + gpio_set_pull(GPIO_A07, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C3: + gpio_cfg_pin(GPIO_A12, GPIO_FUNC(0x3)); + gpio_cfg_pin(GPIO_A13, GPIO_FUNC(0x3)); + gpio_set_pull(GPIO_A12, GPIO_PULL_NONE); + gpio_set_pull(GPIO_A13, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C4: + gpio_cfg_pin(GPIO_A20, GPIO_FUNC(0x3)); + gpio_cfg_pin(GPIO_A21, GPIO_FUNC(0x3)); + gpio_set_pull(GPIO_A20, GPIO_PULL_NONE); + gpio_set_pull(GPIO_A21, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C5: + gpio_cfg_pin(GPIO_A22, GPIO_FUNC(0x3)); + gpio_cfg_pin(GPIO_A23, GPIO_FUNC(0x3)); + gpio_set_pull(GPIO_A22, GPIO_PULL_NONE); + gpio_set_pull(GPIO_A23, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2C6: + gpio_cfg_pin(GPIO_B13, GPIO_FUNC(0x4)); + gpio_cfg_pin(GPIO_B14, GPIO_FUNC(0x4)); + break; + case PERIPH_ID_I2C7: + gpio_cfg_pin(GPIO_B22, GPIO_FUNC(0x3)); + gpio_cfg_pin(GPIO_B23, GPIO_FUNC(0x3)); + gpio_set_pull(GPIO_B22, GPIO_PULL_NONE); + gpio_set_pull(GPIO_B23, GPIO_PULL_NONE); + break; + case PERIPH_ID_DPHPD: + /* Set Hotplug detect for DP */ + gpio_cfg_pin(GPIO_X07, GPIO_FUNC(0x3)); + + /* + * Hotplug detect should have an external pullup; disable the + * internal pulldown so they don't fight. + */ + gpio_set_pull(GPIO_X07, GPIO_PULL_NONE); + break; + case PERIPH_ID_I2S1: + for (i = 0; i < 5; i++) + gpio_cfg_pin(GPIO_B00 + i, GPIO_FUNC(0x02)); + break; + default: + printk(BIOS_DEBUG, "%s: invalid peripheral %d", __func__, peripheral); + return -1; + } + + return 0; +} diff --git a/src/cpu/samsung/exynos5420/pinmux.h b/src/cpu/samsung/exynos5420/pinmux.h new file mode 100644 index 0000000..c94b6eb --- /dev/null +++ b/src/cpu/samsung/exynos5420/pinmux.h @@ -0,0 +1,55 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_PINMUX_H +#define CPU_SAMSUNG_EXYNOS5420_PINMUX_H + +#include "periph.h" + +enum { + PINMUX_FLAG_NONE = 0x00000000, + + /* Flags for eMMC */ + PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */ + + /* + * Flags for SPI. + */ + PINMUX_FLAG_SLAVE_MODE = 1 << 0, /* Slave mode */ + + /* Flags for SROM controller */ + PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */ + PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */ +}; + +/** + * Configures the pinmux for a particular peripheral. + * + * Each gpio can be configured in many different ways (4 bits on exynos) + * such as "input", "output", "special function", "external interrupt" + * etc. This function will configure the peripheral pinmux along with + * pull-up/down and drive strength. + * + * @param peripheral peripheral to be configured + * @param flags configure flags + * @return 0 if ok, -1 on error (e.g. unsupported peripheral) + */ +int exynos_pinmux_config(enum periph_id peripheral, int flags); + +#endif diff --git a/src/cpu/samsung/exynos5420/power.c b/src/cpu/samsung/exynos5420/power.c new file mode 100644 index 0000000..029efc9 --- /dev/null +++ b/src/cpu/samsung/exynos5420/power.c @@ -0,0 +1,138 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Power setup code for EXYNOS5 */ + +#include <console/console.h> +#include <arch/io.h> +#include <arch/hlt.h> +#include "cpu.h" +#include "power.h" +#include "sysreg.h" + +static void ps_hold_setup(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + /* Set PS-Hold high */ + setbits_le32(&power->ps_hold_ctrl, POWER_PS_HOLD_CONTROL_DATA_HIGH); +} + +void power_reset(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + /* Clear inform1 so there's no change we think we've got a wake reset */ + power->inform1 = 0; + + setbits_le32(&power->sw_reset, 1); +} + +/* This function never returns */ +void power_shutdown(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + clrbits_le32(&power->ps_hold_ctrl, POWER_PS_HOLD_CONTROL_DATA_HIGH); + + hlt(); +} + +void power_enable_dp_phy(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + setbits_le32(&power->dptx_phy_control, DPTX_PHY_ENABLE); +} + +void power_enable_usb_phy(void) +{ + struct exynos5_sysreg *sysreg = + samsung_get_base_sysreg(); + struct exynos5_power *power = + samsung_get_base_power(); + unsigned int phy_cfg; + + /* Setting USB20PHY_CONFIG register to USB 2.0 HOST link */ + phy_cfg = readl(&sysreg->usb20_phy_cfg); + if (phy_cfg & USB20_PHY_CFG_EN) { + printk(BIOS_DEBUG, "USB 2.0 HOST link already selected\n"); + } else { + phy_cfg |= USB20_PHY_CFG_EN; + writel(phy_cfg, &sysreg->usb20_phy_cfg); + } + + /* Enabling USBHOST_PHY */ + setbits_le32(&power->usb_host_phy_ctrl, POWER_USB_HOST_PHY_CTRL_EN); +} + +void power_disable_usb_phy(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + /* Disabling USBHost_PHY */ + clrbits_le32(&power->usb_host_phy_ctrl, POWER_USB_HOST_PHY_CTRL_EN); +} + +void power_enable_hw_thermal_trip(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + /* Enable HW thermal trip */ + setbits_le32(&power->ps_hold_ctrl, POWER_ENABLE_HW_TRIP); +} + +uint32_t power_read_reset_status(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + return power->inform1; +} + +void power_exit_wakeup(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + typedef void (*resume_func)(void); + + ((resume_func)power->inform0)(); +} + +int power_init(void) +{ + ps_hold_setup(); + return 0; +} + +void power_enable_xclkout(void) +{ + struct exynos5_power *power = + samsung_get_base_power(); + + /* use xxti for xclk out */ + clrsetbits_le32(&power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK, + PMU_DEBUG_XXTI); +} diff --git a/src/cpu/samsung/exynos5420/power.h b/src/cpu/samsung/exynos5420/power.h new file mode 100644 index 0000000..3c019d6 --- /dev/null +++ b/src/cpu/samsung/exynos5420/power.h @@ -0,0 +1,90 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 PMU */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_POWER_H +#define CPU_SAMSUNG_EXYNOS5420_POWER_H + +/* Enable HW thermal trip with PS_HOLD_CONTROL register ENABLE_HW_TRIP bit */ +void power_enable_hw_thermal_trip(void); + +#define MIPI_PHY1_CONTROL_ENABLE (1 << 0) +#define MIPI_PHY1_CONTROL_M_RESETN (1 << 2) + +#define POWER_USB_HOST_PHY_CTRL_EN (1 << 0) +#define POWER_PS_HOLD_CONTROL_DATA_HIGH (1 << 8) +#define POWER_ENABLE_HW_TRIP (1UL << 31) + +#define DPTX_PHY_ENABLE (1 << 0) + +/* PMU_DEBUG bits [12:8] = 0x1000 selects XXTI clock source */ +#define PMU_DEBUG_XXTI 0x1000 +/* Mask bit[12:8] for xxti clock selection */ +#define PMU_DEBUG_CLKOUT_SEL_MASK 0x1f00 + +/* Power Management Unit register map */ +struct exynos5_power { + /* Add registers as and when required */ + uint8_t reserved1[0x0400]; + uint32_t sw_reset; /* 0x0400 */ + uint8_t reserved2[0x0304]; + uint32_t usb_host_phy_ctrl; /* 0x0708 */ + uint8_t reserved3[0x8]; + uint32_t mipi_phy1_control; /* 0x0714 */ + uint8_t reserved4[0x8]; + uint32_t dptx_phy_control; /* 0x0720 */ + uint8_t reserved5[0xdc]; + uint32_t inform0; /* 0x0800 */ + uint32_t inform1; /* 0x0804 */ + uint8_t reserved6[0x1f8]; + uint32_t pmu_debug; /* 0x0A00*/ + uint8_t reserved7[0x2908]; + uint32_t ps_hold_ctrl; /* 0x330c */ +} __attribute__ ((__packed__)); + +/** + * Perform a software reset. + */ +void power_reset(void); + +/** + * Power off the system; it should never return. + */ +void power_shutdown(void); + +/* Enable DPTX PHY */ +void power_enable_dp_phy(void); + +void power_enable_usb_phy(void); +void power_disable_usb_phy(void); + +/* Initialize the pmic voltages to power up the system */ +int power_init(void); + +/* Read the reset status. */ +uint32_t power_read_reset_status(void); + +/* Read the resume function and call it. */ +void power_exit_wakeup(void); + +/* pmu debug is used for xclkout, enable xclkout with source as XXTI */ +void power_enable_xclkout(void); + +#endif diff --git a/src/cpu/samsung/exynos5420/pwm.c b/src/cpu/samsung/exynos5420/pwm.c new file mode 100644 index 0000000..34fc2b1 --- /dev/null +++ b/src/cpu/samsung/exynos5420/pwm.c @@ -0,0 +1,191 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include "clk.h" +#include "cpu.h" +#include "periph.h" +#include "pwm.h" + +int pwm_enable(int pwm_id) +{ + const struct s5p_timer *pwm = + samsung_get_base_timer(); + unsigned long tcon; + + tcon = readl(&pwm->tcon); + tcon |= TCON_START(pwm_id); + + writel(tcon, &pwm->tcon); + + return 0; +} + +int pwm_check_enabled(int pwm_id) +{ + const struct s5p_timer *pwm = + samsung_get_base_timer(); + const unsigned long tcon = readl(&pwm->tcon); + + return tcon & TCON_START(pwm_id); +} + +void pwm_disable(int pwm_id) +{ + const struct s5p_timer *pwm = + samsung_get_base_timer(); + unsigned long tcon; + + tcon = readl(&pwm->tcon); + tcon &= ~TCON_START(pwm_id); + + writel(tcon, &pwm->tcon); +} + +static unsigned long pwm_calc_tin(int pwm_id, unsigned long freq) +{ + unsigned long tin_parent_rate; + unsigned int div; + + tin_parent_rate = clock_get_periph_rate(PERIPH_ID_PWM0); + + for (div = 2; div <= 16; div *= 2) { + if ((tin_parent_rate / (div << 16)) < freq) + return tin_parent_rate / div; + } + + return tin_parent_rate / 16; +} + +#define NS_IN_SEC 1000000000UL + +int pwm_config(int pwm_id, int duty_ns, int period_ns) +{ + const struct s5p_timer *pwm = + samsung_get_base_timer(); + unsigned int offset; + unsigned long tin_rate; + unsigned long tin_ns; + unsigned long frequency; + unsigned long tcon; + unsigned long tcnt; + unsigned long tcmp; + + /* + * We currently avoid using 64bit arithmetic by using the + * fact that anything faster than 1GHz is easily representable + * by 32bits. + */ + if (period_ns > NS_IN_SEC || duty_ns > NS_IN_SEC || period_ns == 0) + return -1; + + if (duty_ns > period_ns) + return -1; + + frequency = NS_IN_SEC / period_ns; + + /* Check to see if we are changing the clock rate of the PWM */ + tin_rate = pwm_calc_tin(pwm_id, frequency); + + tin_ns = NS_IN_SEC / tin_rate; + tcnt = period_ns / tin_ns; + + /* Note, counters count down */ + tcmp = duty_ns / tin_ns; + tcmp = tcnt - tcmp; + + /* Update the PWM register block. */ + offset = pwm_id * 3; + if (pwm_id < 4) { + writel(tcnt, &pwm->tcntb0 + offset); + writel(tcmp, &pwm->tcmpb0 + offset); + } + + tcon = readl(&pwm->tcon); + tcon |= TCON_UPDATE(pwm_id); + if (pwm_id < 4) + tcon |= TCON_AUTO_RELOAD(pwm_id); + else + tcon |= TCON4_AUTO_RELOAD; + writel(tcon, &pwm->tcon); + + tcon &= ~TCON_UPDATE(pwm_id); + writel(tcon, &pwm->tcon); + + return 0; +} + +int pwm_init(int pwm_id, int div, int invert) +{ + u32 val; + const struct s5p_timer *pwm = + samsung_get_base_timer(); + unsigned long ticks_per_period; + unsigned int offset, prescaler; + + /* + * Timer Freq(HZ) = + * PWM_CLK / { (prescaler_value + 1) * (divider_value) } + */ + + val = readl(&pwm->tcfg0); + if (pwm_id < 2) { + prescaler = PRESCALER_0; + val &= ~0xff; + val |= (prescaler & 0xff); + } else { + prescaler = PRESCALER_1; + val &= ~(0xff << 8); + val |= (prescaler & 0xff) << 8; + } + writel(val, &pwm->tcfg0); + val = readl(&pwm->tcfg1); + val &= ~(0xf << MUX_DIV_SHIFT(pwm_id)); + val |= (div & 0xf) << MUX_DIV_SHIFT(pwm_id); + writel(val, &pwm->tcfg1); + + + if (pwm_id == 4) { + /* + * TODO(sjg): Use this as a countdown timer for now. We count + * down from the maximum value to 0, then reset. + */ + ticks_per_period = -1UL; + } else { + const unsigned long pwm_hz = 1000; + unsigned long timer_rate_hz = clock_get_periph_rate( + PERIPH_ID_PWM0) / ((prescaler + 1) * (1 << div)); + + ticks_per_period = timer_rate_hz / pwm_hz; + } + + /* set count value */ + offset = pwm_id * 3; + + writel(ticks_per_period, &pwm->tcntb0 + offset); + + val = readl(&pwm->tcon) & ~(0xf << TCON_OFFSET(pwm_id)); + if (invert && (pwm_id < 4)) + val |= TCON_INVERTER(pwm_id); + writel(val, &pwm->tcon); + + pwm_enable(pwm_id); + + return 0; +} diff --git a/src/cpu/samsung/exynos5420/pwm.h b/src/cpu/samsung/exynos5420/pwm.h new file mode 100644 index 0000000..4300061 --- /dev/null +++ b/src/cpu/samsung/exynos5420/pwm.h @@ -0,0 +1,70 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_PWM_H +#define CPU_SAMSUNG_EXYNOS5420_PWM_H + +#define PRESCALER_0 (8 - 1) /* prescaler of timer 0, 1 */ +#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */ + +/* Divider MUX */ +#define MUX_DIV_1 0 /* 1/1 period */ +#define MUX_DIV_2 1 /* 1/2 period */ +#define MUX_DIV_4 2 /* 1/4 period */ +#define MUX_DIV_8 3 /* 1/8 period */ +#define MUX_DIV_16 4 /* 1/16 period */ + +#define MUX_DIV_SHIFT(x) (x * 4) + +#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2) + +#define TCON_START(x) (1 << TCON_OFFSET(x)) +#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1)) +#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2)) +#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3)) +#define TCON4_AUTO_RELOAD (1 << 22) + +struct s5p_timer { + unsigned int tcfg0; + unsigned int tcfg1; + unsigned int tcon; + unsigned int tcntb0; + unsigned int tcmpb0; + unsigned int tcnto0; + unsigned int tcntb1; + unsigned int tcmpb1; + unsigned int tcnto1; + unsigned int tcntb2; + unsigned int tcmpb2; + unsigned int tcnto2; + unsigned int tcntb3; + unsigned int tcmpb3; + unsigned int tcnto3; + unsigned int tcntb4; + unsigned int tcnto4; + unsigned int tintcstat; +}; + +int pwm_config(int pwm_id, int duty_ns, int period_ns); +int pwm_check_enabled(int pwm_id); +void pwm_disable(int pwm_id); +int pwm_enable(int pwm_id); +int pwm_init(int pwm_id, int div, int invert); + +#endif diff --git a/src/cpu/samsung/exynos5420/reset.c b/src/cpu/samsung/exynos5420/reset.c new file mode 100644 index 0000000..78571ba --- /dev/null +++ b/src/cpu/samsung/exynos5420/reset.c @@ -0,0 +1,26 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <reset.h> +#include <arch/io.h> + +void soft_reset(void) +{ + writel(0x1, samsung_get_base_swreset()); +} diff --git a/src/cpu/samsung/exynos5420/setup.h b/src/cpu/samsung/exynos5420/setup.h new file mode 100644 index 0000000..7a779ba --- /dev/null +++ b/src/cpu/samsung/exynos5420/setup.h @@ -0,0 +1,753 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Machine Specific Values for SMDK5420 board based on Exynos5 */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_SETUP_H +#define CPU_SAMSUNG_EXYNOS5420_SETUP_H + +struct exynos5_dmc; +enum ddr_mode; +struct exynos5_phy_control; + +/* TZPC : Register Offsets */ +#define TZPC0_BASE 0x10100000 +#define TZPC1_BASE 0x10110000 +#define TZPC2_BASE 0x10120000 +#define TZPC3_BASE 0x10130000 +#define TZPC4_BASE 0x10140000 +#define TZPC5_BASE 0x10150000 +#define TZPC6_BASE 0x10160000 +#define TZPC7_BASE 0x10170000 +#define TZPC8_BASE 0x10180000 +#define TZPC9_BASE 0x10190000 + +/* APLL_CON1 */ +#define APLL_CON1_VAL (0x00203800) + +/* MPLL_CON1 */ +#define MPLL_CON1_VAL (0x00203800) + +/* CPLL_CON1 */ +#define CPLL_CON1_VAL (0x00203800) + +/* GPLL_CON1 */ +#define GPLL_CON1_VAL (0x00203800) + +/* EPLL_CON1, CON2 */ +#define EPLL_CON1_VAL 0x00000000 +#define EPLL_CON2_VAL 0x00000080 + +/* VPLL_CON1, CON2 */ +#define VPLL_CON1_VAL 0x00000000 +#define VPLL_CON2_VAL 0x00000080 + +/* BPLL_CON1 */ +#define BPLL_CON1_VAL 0x00203800 + +/* Set PLL */ +#define set_pll(mdiv, pdiv, sdiv) (1<<31 | mdiv<<16 | pdiv<<8 | sdiv) + +/* CLK_SRC_CPU */ +/* 0 = MOUTAPLL, 1 = SCLKMPLL */ +#define MUX_HPM_SEL 0 +#define MUX_CPU_SEL 0 +#define MUX_APLL_SEL 1 + +#define CLK_SRC_CPU_VAL ((MUX_HPM_SEL << 20) \ + | (MUX_CPU_SEL << 16) \ + | (MUX_APLL_SEL)) + +/* MEMCONTROL register bit fields */ +#define DMC_MEMCONTROL_CLK_STOP_DISABLE (0 << 0) +#define DMC_MEMCONTROL_DPWRDN_DISABLE (0 << 1) +#define DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE (0 << 2) +#define DMC_MEMCONTROL_TP_DISABLE (0 << 4) +#define DMC_MEMCONTROL_DSREF_DISABLE (0 << 5) +#define DMC_MEMCONTROL_DSREF_ENABLE (1 << 5) +#define DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(x) (x << 6) + +#define DMC_MEMCONTROL_MEM_TYPE_LPDDR3 (7 << 8) +#define DMC_MEMCONTROL_MEM_TYPE_DDR3 (6 << 8) +#define DMC_MEMCONTROL_MEM_TYPE_LPDDR2 (5 << 8) + +#define DMC_MEMCONTROL_MEM_WIDTH_32BIT (2 << 12) + +#define DMC_MEMCONTROL_NUM_CHIP_1 (0 << 16) +#define DMC_MEMCONTROL_NUM_CHIP_2 (1 << 16) + +#define DMC_MEMCONTROL_BL_8 (3 << 20) +#define DMC_MEMCONTROL_BL_4 (2 << 20) + +#define DMC_MEMCONTROL_PZQ_DISABLE (0 << 24) + +#define DMC_MEMCONTROL_MRR_BYTE_7_0 (0 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_15_8 (1 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_23_16 (2 << 25) +#define DMC_MEMCONTROL_MRR_BYTE_31_24 (3 << 25) + +/* MEMCONFIG0 register bit fields */ +#define DMC_MEMCONFIGx_CHIP_MAP_INTERLEAVED (1 << 12) +#define DMC_MEMCONFIGx_CHIP_COL_10 (3 << 8) +#define DMC_MEMCONFIGx_CHIP_ROW_14 (2 << 4) +#define DMC_MEMCONFIGx_CHIP_ROW_15 (3 << 4) +#define DMC_MEMCONFIGx_CHIP_BANK_8 (3 << 0) + +#define DMC_MEMBASECONFIGx_CHIP_BASE(x) (x << 16) +#define DMC_MEMBASECONFIGx_CHIP_MASK(x) (x << 0) +#define DMC_MEMBASECONFIG_VAL(x) ( \ + DMC_MEMBASECONFIGx_CHIP_BASE(x) | \ + DMC_MEMBASECONFIGx_CHIP_MASK(0x780) \ +) + +#define DMC_MEMBASECONFIG0_VAL DMC_MEMBASECONFIG_VAL(0x40) +#define DMC_MEMBASECONFIG1_VAL DMC_MEMBASECONFIG_VAL(0x80) + +#define DMC_PRECHCONFIG_VAL 0xFF000000 +#define DMC_PWRDNCONFIG_VAL 0xFFFF00FF + +#define DMC_CONCONTROL_RESET_VAL 0x0FFF0000 +#define DFI_INIT_START (1 << 28) +#define EMPTY (1 << 8) +#define AREF_EN (1 << 5) + +#define DFI_INIT_COMPLETE_CHO (1 << 2) +#define DFI_INIT_COMPLETE_CH1 (1 << 3) + +#define RDLVL_COMPLETE_CHO (1 << 14) +#define RDLVL_COMPLETE_CH1 (1 << 15) + +#define CLK_STOP_EN (1 << 0) +#define DPWRDN_EN (1 << 1) +#define DSREF_EN (1 << 5) + +/* COJCONTROL register bit fields */ +#define DMC_CONCONTROL_IO_PD_CON_DISABLE (0 << 3) +#define DMC_CONCONTROL_AREF_EN_DISABLE (0 << 5) +#define DMC_CONCONTROL_EMPTY_DISABLE (0 << 8) +#define DMC_CONCONTROL_EMPTY_ENABLE (1 << 8) +#define DMC_CONCONTROL_RD_FETCH_DISABLE (0x0 << 12) +#define DMC_CONCONTROL_TIMEOUT_LEVEL0 (0xFFF << 16) +#define DMC_CONCONTROL_DFI_INIT_START_DISABLE (0 << 28) + +/* CLK_DIV_CPU0_VAL */ +#define CLK_DIV_CPU0_VAL ((ARM2_RATIO << 28) \ + | (APLL_RATIO << 24) \ + | (PCLK_DBG_RATIO << 20) \ + | (ATB_RATIO << 16) \ + | (PERIPH_RATIO << 12) \ + | (ACP_RATIO << 8) \ + | (CPUD_RATIO << 4) \ + | (ARM_RATIO)) + + +/* CLK_FSYS */ +#define CLK_SRC_FSYS0_VAL 0x66666 +#define CLK_DIV_FSYS0_VAL 0x0BB00000 + +/* CLK_DIV_CPU1 */ +#define HPM_RATIO 0x2 +#define COPY_RATIO 0x0 + +/* CLK_DIV_CPU1 = 0x00000003 */ +#define CLK_DIV_CPU1_VAL ((HPM_RATIO << 4) \ + | (COPY_RATIO)) + +/* CLK_SRC_CORE0 */ +#define CLK_SRC_CORE0_VAL 0x00000000 + +/* CLK_SRC_CORE1 */ +#define CLK_SRC_CORE1_VAL 0x100 + +/* CLK_DIV_CORE0 */ +#define CLK_DIV_CORE0_VAL 0x00120000 + +/* CLK_DIV_CORE1 */ +#define CLK_DIV_CORE1_VAL 0x07070700 + +/* CLK_DIV_SYSRGT */ +#define CLK_DIV_SYSRGT_VAL 0x00000111 + +/* CLK_DIV_ACP */ +#define CLK_DIV_ACP_VAL 0x12 + +/* CLK_DIV_SYSLFT */ +#define CLK_DIV_SYSLFT_VAL 0x00000311 + +/* CLK_SRC_CDREX */ +#define CLK_SRC_CDREX_VAL 0x1 + +/* CLK_DIV_CDREX */ +#define MCLK_CDREX2_RATIO 0x0 +#define ACLK_EFCON_RATIO 0x1 +#define MCLK_DPHY_RATIO 0x1 +#define MCLK_CDREX_RATIO 0x1 +#define ACLK_C2C_200_RATIO 0x1 +#define C2C_CLK_400_RATIO 0x1 +#define PCLK_CDREX_RATIO 0x1 +#define ACLK_CDREX_RATIO 0x1 + +#define CLK_DIV_CDREX_VAL ((MCLK_DPHY_RATIO << 24) \ + | (C2C_CLK_400_RATIO << 6) \ + | (PCLK_CDREX_RATIO << 4) \ + | (ACLK_CDREX_RATIO)) + +/* CLK_SRC_TOP0 */ +#define MUX_ACLK_300_GSCL_SEL 0x0 +#define MUX_ACLK_300_GSCL_MID_SEL 0x0 +#define MUX_ACLK_400_G3D_MID_SEL 0x0 +#define MUX_ACLK_333_SEL 0x0 +#define MUX_ACLK_300_DISP1_SEL 0x0 +#define MUX_ACLK_300_DISP1_MID_SEL 0x0 +#define MUX_ACLK_200_SEL 0x0 +#define MUX_ACLK_166_SEL 0x0 +#define CLK_SRC_TOP0_VAL ((MUX_ACLK_300_GSCL_SEL << 25) \ + | (MUX_ACLK_300_GSCL_MID_SEL << 24) \ + | (MUX_ACLK_400_G3D_MID_SEL << 20) \ + | (MUX_ACLK_333_SEL << 16) \ + | (MUX_ACLK_300_DISP1_SEL << 15) \ + | (MUX_ACLK_300_DISP1_MID_SEL << 14) \ + | (MUX_ACLK_200_SEL << 12) \ + | (MUX_ACLK_166_SEL << 8)) + +/* CLK_SRC_TOP1 */ +#define MUX_ACLK_400_G3D_SEL 0x1 +#define MUX_ACLK_400_ISP_SEL 0x0 +#define MUX_ACLK_400_IOP_SEL 0x0 +#define MUX_ACLK_MIPI_HSI_TXBASE_SEL 0x0 +#define MUX_ACLK_300_GSCL_MID1_SEL 0x0 +#define MUX_ACLK_300_DISP1_MID1_SEL 0x0 +#define CLK_SRC_TOP1_VAL ((MUX_ACLK_400_G3D_SEL << 28) \ + |(MUX_ACLK_400_ISP_SEL << 24) \ + |(MUX_ACLK_400_IOP_SEL << 20) \ + |(MUX_ACLK_MIPI_HSI_TXBASE_SEL << 16) \ + |(MUX_ACLK_300_GSCL_MID1_SEL << 12) \ + |(MUX_ACLK_300_DISP1_MID1_SEL << 8)) + +/* CLK_SRC_TOP2 */ +#define MUX_GPLL_SEL 0x1 +#define MUX_BPLL_USER_SEL 0x0 +#define MUX_MPLL_USER_SEL 0x0 +#define MUX_VPLL_SEL 0x1 +#define MUX_EPLL_SEL 0x1 +#define MUX_CPLL_SEL 0x1 +#define VPLLSRC_SEL 0x0 +#define CLK_SRC_TOP2_VAL ((MUX_GPLL_SEL << 28) \ + | (MUX_BPLL_USER_SEL << 24) \ + | (MUX_MPLL_USER_SEL << 20) \ + | (MUX_VPLL_SEL << 16) \ + | (MUX_EPLL_SEL << 12) \ + | (MUX_CPLL_SEL << 8) \ + | (VPLLSRC_SEL)) +/* CLK_SRC_TOP3 */ +#define MUX_ACLK_333_SUB_SEL 0x1 +#define MUX_ACLK_400_SUB_SEL 0x1 +#define MUX_ACLK_266_ISP_SUB_SEL 0x1 +#define MUX_ACLK_266_GPS_SUB_SEL 0x0 +#define MUX_ACLK_300_GSCL_SUB_SEL 0x1 +#define MUX_ACLK_266_GSCL_SUB_SEL 0x1 +#define MUX_ACLK_300_DISP1_SUB_SEL 0x1 +#define MUX_ACLK_200_DISP1_SUB_SEL 0x1 +#define CLK_SRC_TOP3_VAL ((MUX_ACLK_333_SUB_SEL << 24) \ + | (MUX_ACLK_400_SUB_SEL << 20) \ + | (MUX_ACLK_266_ISP_SUB_SEL << 16) \ + | (MUX_ACLK_266_GPS_SUB_SEL << 12) \ + | (MUX_ACLK_300_GSCL_SUB_SEL << 10) \ + | (MUX_ACLK_266_GSCL_SUB_SEL << 8) \ + | (MUX_ACLK_300_DISP1_SUB_SEL << 6) \ + | (MUX_ACLK_200_DISP1_SUB_SEL << 4)) + +/* CLK_DIV_TOP0 */ +#define ACLK_300_DISP1_RATIO 0x2 +#define ACLK_400_G3D_RATIO 0x0 +#define ACLK_333_RATIO 0x0 +#define ACLK_266_RATIO 0x2 +#define ACLK_200_RATIO 0x3 +#define ACLK_166_RATIO 0x1 +#define ACLK_133_RATIO 0x1 +#define ACLK_66_RATIO 0x5 + +#define CLK_DIV_TOP0_VAL ((ACLK_300_DISP1_RATIO << 28) \ + | (ACLK_400_G3D_RATIO << 24) \ + | (ACLK_333_RATIO << 20) \ + | (ACLK_266_RATIO << 16) \ + | (ACLK_200_RATIO << 12) \ + | (ACLK_166_RATIO << 8) \ + | (ACLK_133_RATIO << 4) \ + | (ACLK_66_RATIO)) + +/* CLK_DIV_TOP1 */ +#define ACLK_MIPI_HSI_TX_BASE_RATIO 0x3 +#define ACLK_66_PRE_RATIO 0x1 +#define ACLK_400_ISP_RATIO 0x1 +#define ACLK_400_IOP_RATIO 0x1 +#define ACLK_300_GSCL_RATIO 0x2 + +#define CLK_DIV_TOP1_VAL ((ACLK_MIPI_HSI_TX_BASE_RATIO << 28) \ + | (ACLK_66_PRE_RATIO << 24) \ + | (ACLK_400_ISP_RATIO << 20) \ + | (ACLK_400_IOP_RATIO << 16) \ + | (ACLK_300_GSCL_RATIO << 12)) + +/* APLL_LOCK */ +#define APLL_LOCK_VAL (0x546) +/* MPLL_LOCK */ +#define MPLL_LOCK_VAL (0x546) +/* CPLL_LOCK */ +#define CPLL_LOCK_VAL (0x546) +/* GPLL_LOCK */ +#define GPLL_LOCK_VAL (0x546) +/* EPLL_LOCK */ +#define EPLL_LOCK_VAL (0x3A98) +/* VPLL_LOCK */ +#define VPLL_LOCK_VAL (0x3A98) +/* BPLL_LOCK */ +#define BPLL_LOCK_VAL (0x546) + +#define MUX_MCLK_CDREX_SEL (1 << 4) +#define MUX_MCLK_DPHY_SEL (1 << 8) + +#define MUX_APLL_SEL_MASK (1 << 0) +#define MUX_MPLL_FOUT_SEL (1 << 4) +#define MUX_BPLL_FOUT_SEL (1 << 0) +#define MUX_MPLL_SEL_MASK (1 << 8) +#define MPLL_SEL_MOUT_MPLLFOUT (2 << 8) +#define MUX_CPLL_SEL_MASK (1 << 8) +#define MUX_EPLL_SEL_MASK (1 << 12) +#define MUX_VPLL_SEL_MASK (1 << 16) +#define MUX_GPLL_SEL_MASK (1 << 28) +#define MUX_BPLL_SEL_MASK (1 << 0) +#define MUX_HPM_SEL_MASK (1 << 20) +#define HPM_SEL_SCLK_MPLL (1 << 21) +#define APLL_CON0_LOCKED (1 << 29) +#define MPLL_CON0_LOCKED (1 << 29) +#define BPLL_CON0_LOCKED (1 << 29) +#define CPLL_CON0_LOCKED (1 << 29) +#define EPLL_CON0_LOCKED (1 << 29) +#define GPLL_CON0_LOCKED (1 << 29) +#define VPLL_CON0_LOCKED (1 << 29) +#define CLK_REG_DISABLE 0x0 +#define TOP2_VAL 0x0110000 + +/* CLK_SRC_PERIC0 */ +#define PWM_SEL 6 +#define UART3_SEL 6 +#define UART2_SEL 6 +#define UART1_SEL 6 +#define UART0_SEL 6 +/* SRC_CLOCK = SCLK_MPLL */ +#define CLK_SRC_PERIC0_VAL ((PWM_SEL << 24) \ + | (UART3_SEL << 12) \ + | (UART2_SEL << 8) \ + | (UART1_SEL << 4) \ + | (UART0_SEL)) + +/* CLK_SRC_PERIC1 */ +/* SRC_CLOCK = SCLK_MPLL */ +#define SPI0_SEL 6 +#define SPI1_SEL 6 +#define SPI2_SEL 6 +#define CLK_SRC_PERIC1_VAL ((SPI2_SEL << 24) \ + | (SPI1_SEL << 20) \ + | (SPI0_SEL << 16)) + +/* SCLK_SRC_ISP - set SPI0/1 to 6 = SCLK_MPLL_USER */ +#define SPI0_ISP_SEL 6 +#define SPI1_ISP_SEL 6 +#define SCLK_SRC_ISP_VAL (SPI1_ISP_SEL << 4) \ + | (SPI0_ISP_SEL << 0) + +/* SCLK_DIV_ISP - set SPI0/1 to 0xf = divide by 16 */ +#define SPI0_ISP_RATIO 0xf +#define SPI1_ISP_RATIO 0xf +#define SCLK_DIV_ISP_VAL (SPI1_ISP_RATIO << 12) \ + | (SPI0_ISP_RATIO << 0) + +/* CLK_DIV_PERIL0 */ +#define UART5_RATIO 7 +#define UART4_RATIO 7 +#define UART3_RATIO 7 +#define UART2_RATIO 7 +#define UART1_RATIO 7 +#define UART0_RATIO 7 + +#define CLK_DIV_PERIC0_VAL ((UART3_RATIO << 12) \ + | (UART2_RATIO << 8) \ + | (UART1_RATIO << 4) \ + | (UART0_RATIO)) +/* CLK_DIV_PERIC1 */ +#define SPI1_RATIO 0x7 +#define SPI0_RATIO 0xf +#define SPI1_SUB_RATIO 0x0 +#define SPI0_SUB_RATIO 0x0 +#define CLK_DIV_PERIC1_VAL ((SPI1_SUB_RATIO << 24) \ + | ((SPI1_RATIO << 16) \ + | (SPI0_SUB_RATIO << 8) \ + | (SPI0_RATIO << 0))) + +/* CLK_DIV_PERIC2 */ +#define SPI2_RATIO 0xf +#define SPI2_SUB_RATIO 0x0 +#define CLK_DIV_PERIC2_VAL ((SPI2_SUB_RATIO << 8) \ + | (SPI2_RATIO << 0)) +/* CLK_DIV_FSYS2 */ +#define MMC2_RATIO_MASK 0xf +#define MMC2_RATIO_VAL 0x3 +#define MMC2_RATIO_OFFSET 0 + +#define MMC2_PRE_RATIO_MASK 0xff +#define MMC2_PRE_RATIO_VAL 0x9 +#define MMC2_PRE_RATIO_OFFSET 8 + +#define MMC3_RATIO_MASK 0xf +#define MMC3_RATIO_VAL 0x1 +#define MMC3_RATIO_OFFSET 16 + +#define MMC3_PRE_RATIO_MASK 0xff +#define MMC3_PRE_RATIO_VAL 0x0 +#define MMC3_PRE_RATIO_OFFSET 24 + +/* CLK_SRC_LEX */ +#define CLK_SRC_LEX_VAL 0x0 + +/* CLK_DIV_LEX */ +#define CLK_DIV_LEX_VAL 0x10 + +/* CLK_DIV_R0X */ +#define CLK_DIV_R0X_VAL 0x10 + +/* CLK_DIV_L0X */ +#define CLK_DIV_R1X_VAL 0x10 + +/* CLK_DIV_ISP0 */ +#define CLK_DIV_ISP0_VAL 0x31 + +/* CLK_DIV_ISP1 */ +#define CLK_DIV_ISP1_VAL 0x0 + +/* CLK_DIV_ISP2 */ +#define CLK_DIV_ISP2_VAL 0x1 + +/* CLK_SRC_DISP1_0 */ +#define CLK_SRC_DISP1_0_VAL 0x6 + +/* + * DIV_DISP1_0 + * For DP, divisor should be 2 + */ +#define CLK_DIV_DISP1_0_FIMD1 (2 << 0) + +/* CLK_GATE_IP_DISP1 */ +#define CLK_GATE_DP1_ALLOW (1 << 4) + +/* CLK_GATE_IP_SYSRGT */ +#define CLK_C2C_MASK (1 << 1) + +/* CLK_GATE_IP_ACP */ +#define CLK_SMMUG2D_MASK (1 << 7) +#define CLK_SMMUSSS_MASK (1 << 6) +#define CLK_SMMUMDMA_MASK (1 << 5) +#define CLK_ID_REMAPPER_MASK (1 << 4) +#define CLK_G2D_MASK (1 << 3) +#define CLK_SSS_MASK (1 << 2) +#define CLK_MDMA_MASK (1 << 1) +#define CLK_SECJTAG_MASK (1 << 0) + +/* CLK_GATE_BUS_SYSLFT */ +#define CLK_EFCLK_MASK (1 << 16) + +/* CLK_GATE_IP_ISP0 */ +#define CLK_UART_ISP_MASK (1 << 31) +#define CLK_WDT_ISP_MASK (1 << 30) +#define CLK_PWM_ISP_MASK (1 << 28) +#define CLK_MTCADC_ISP_MASK (1 << 27) +#define CLK_I2C1_ISP_MASK (1 << 26) +#define CLK_I2C0_ISP_MASK (1 << 25) +#define CLK_MPWM_ISP_MASK (1 << 24) +#define CLK_MCUCTL_ISP_MASK (1 << 23) +#define CLK_INT_COMB_ISP_MASK (1 << 22) +#define CLK_SMMU_MCUISP_MASK (1 << 13) +#define CLK_SMMU_SCALERP_MASK (1 << 12) +#define CLK_SMMU_SCALERC_MASK (1 << 11) +#define CLK_SMMU_FD_MASK (1 << 10) +#define CLK_SMMU_DRC_MASK (1 << 9) +#define CLK_SMMU_ISP_MASK (1 << 8) +#define CLK_GICISP_MASK (1 << 7) +#define CLK_ARM9S_MASK (1 << 6) +#define CLK_MCUISP_MASK (1 << 5) +#define CLK_SCALERP_MASK (1 << 4) +#define CLK_SCALERC_MASK (1 << 3) +#define CLK_FD_MASK (1 << 2) +#define CLK_DRC_MASK (1 << 1) +#define CLK_ISP_MASK (1 << 0) + +/* CLK_GATE_IP_ISP1 */ +#define CLK_SPI1_ISP_MASK (1 << 13) +#define CLK_SPI0_ISP_MASK (1 << 12) +#define CLK_SMMU3DNR_MASK (1 << 7) +#define CLK_SMMUDIS1_MASK (1 << 6) +#define CLK_SMMUDIS0_MASK (1 << 5) +#define CLK_SMMUODC_MASK (1 << 4) +#define CLK_3DNR_MASK (1 << 2) +#define CLK_DIS_MASK (1 << 1) +#define CLK_ODC_MASK (1 << 0) + +/* CLK_GATE_IP_GSCL */ +#define CLK_SMMUFIMC_LITE2_MASK (1 << 20) +#define CLK_SMMUFIMC_LITE1_MASK (1 << 12) +#define CLK_SMMUFIMC_LITE0_MASK (1 << 11) +#define CLK_SMMUGSCL3_MASK (1 << 10) +#define CLK_SMMUGSCL2_MASK (1 << 9) +#define CLK_SMMUGSCL1_MASK (1 << 8) +#define CLK_SMMUGSCL0_MASK (1 << 7) +#define CLK_GSCL_WRAP_B_MASK (1 << 6) +#define CLK_GSCL_WRAP_A_MASK (1 << 5) +#define CLK_CAMIF_TOP_MASK (1 << 4) +#define CLK_GSCL3_MASK (1 << 3) +#define CLK_GSCL2_MASK (1 << 2) +#define CLK_GSCL1_MASK (1 << 1) +#define CLK_GSCL0_MASK (1 << 0) + +/* CLK_GATE_IP_MFC */ +#define CLK_SMMUMFCR_MASK (1 << 2) +#define CLK_SMMUMFCL_MASK (1 << 1) +#define CLK_MFC_MASK (1 << 0) + +#define SCLK_MPWM_ISP_MASK (1 << 0) + +/* CLK_GATE_IP_DISP1 */ +#define CLK_SMMUTVX_MASK (1 << 9) +#define CLK_ASYNCTVX_MASK (1 << 7) +#define CLK_HDMI_MASK (1 << 6) +#define CLK_MIXER_MASK (1 << 5) +#define CLK_DSIM1_MASK (1 << 3) + +/* CLK_GATE_IP_GEN */ +#define CLK_SMMUMDMA1_MASK (1 << 9) +#define CLK_SMMUJPEG_MASK (1 << 7) +#define CLK_SMMUROTATOR_MASK (1 << 6) +#define CLK_MDMA1_MASK (1 << 4) +#define CLK_JPEG_MASK (1 << 2) +#define CLK_ROTATOR_MASK (1 << 1) + +/* CLK_GATE_IP_FSYS */ +#define CLK_WDT_IOP_MASK (1 << 30) +#define CLK_SMMUMCU_IOP_MASK (1 << 26) +#define CLK_SATA_PHY_I2C_MASK (1 << 25) +#define CLK_SATA_PHY_CTRL_MASK (1 << 24) +#define CLK_MCUCTL_MASK (1 << 23) +#define CLK_NFCON_MASK (1 << 22) +#define CLK_SMMURTIC_MASK (1 << 11) +#define CLK_RTIC_MASK (1 << 9) +#define CLK_MIPI_HSI_MASK (1 << 8) +#define CLK_USBOTG_MASK (1 << 7) +#define CLK_SATA_MASK (1 << 6) +#define CLK_PDMA1_MASK (1 << 2) +#define CLK_PDMA0_MASK (1 << 1) +#define CLK_MCU_IOP_MASK (1 << 0) + +/* CLK_GATE_IP_PERIC */ +#define CLK_HS_I2C3_MASK (1 << 31) +#define CLK_HS_I2C2_MASK (1 << 30) +#define CLK_HS_I2C1_MASK (1 << 29) +#define CLK_HS_I2C0_MASK (1 << 28) +#define CLK_AC97_MASK (1 << 27) +#define CLK_SPDIF_MASK (1 << 26) +#define CLK_PCM2_MASK (1 << 23) +#define CLK_PCM1_MASK (1 << 22) +#define CLK_I2S2_MASK (1 << 21) +#define CLK_I2S1_MASK (1 << 20) +#define CLK_SPI2_MASK (1 << 18) +#define CLK_SPI0_MASK (1 << 16) +#define CLK_I2CHDMI_MASK (1 << 14) +#define CLK_I2C7_MASK (1 << 13) +#define CLK_I2C6_MASK (1 << 12) +#define CLK_I2C5_MASK (1 << 11) +#define CLK_I2C4_MASK (1 << 10) +#define CLK_I2C3_MASK (1 << 9) +#define CLK_I2C2_MASK (1 << 8) +#define CLK_I2C1_MASK (1 << 7) +#define CLK_I2C0_MASK (1 << 6) + +/* CLK_GATE_IP_PERIS */ +#define CLK_RTC_MASK (1 << 20) +#define CLK_TZPC9_MASK (1 << 15) +#define CLK_TZPC8_MASK (1 << 14) +#define CLK_TZPC7_MASK (1 << 13) +#define CLK_TZPC6_MASK (1 << 12) +#define CLK_TZPC5_MASK (1 << 11) +#define CLK_TZPC4_MASK (1 << 10) +#define CLK_TZPC3_MASK (1 << 9) +#define CLK_TZPC2_MASK (1 << 8) +#define CLK_TZPC1_MASK (1 << 7) +#define CLK_TZPC0_MASK (1 << 6) +#define CLK_CHIPID_MASK (1 << 0) + +/* CLK_GATE_BLOCK */ +#define CLK_ACP_MASK (1 << 7) + +/* CLK_GATE_IP_CDREX */ +#define CLK_TZASC_DRBXW_MASK (1 << 23) +#define CLK_TZASC_DRBXR_MASK (1 << 22) +#define CLK_TZASC_XLBXW_MASK (1 << 21) +#define CLK_TZASC_XLBXR_MASK (1 << 20) +#define CLK_TZASC_XR1BXW_MASK (1 << 19) +#define CLK_TZASC_XR1BXR_MASK (1 << 18) +#define CLK_DPHY1_MASK (1 << 5) +#define CLK_DPHY0_MASK (1 << 4) + +/* + * TZPC Register Value : + * R0SIZE: 0x0 : Size of secured ram + */ +#define R0SIZE 0x0 + +/* + * TZPC Decode Protection Register Value : + * DECPROTXSET: 0xFF : Set Decode region to non-secure + */ +#define DECPROTXSET 0xFF + +#define LPDDR3PHY_CTRL_PHY_RESET (1 << 0) +#define LPDDR3PHY_CTRL_PHY_RESET_OFF (0 << 0) + +#define PHY_CON0_RESET_VAL 0x17020a40 +#define P0_CMD_EN (1 << 14) +#define BYTE_RDLVL_EN (1 << 13) +#define CTRL_SHGATE (1 << 8) + +#define PHY_CON1_RESET_VAL 0x09210100 +#define CTRL_GATEDURADJ_MASK (0xf << 20) + +#define PHY_CON2_RESET_VAL 0x00010004 +#define INIT_DESKEW_EN (1 << 6) +#define RDLVL_GATE_EN (1 << 24) + +/*ZQ Configurations */ +#define PHY_CON16_RESET_VAL 0x08000304 + +#define ZQ_CLK_DIV_EN (1 << 18) +#define ZQ_MANUAL_STR (1 << 1) +#define ZQ_DONE (1 << 0) + +#define CTRL_RDLVL_GATE_ENABLE 1 +#define CTRL_RDLVL_GATE_DISABLE 1 + +/* Direct Command */ +#define DIRECT_CMD_NOP 0x07000000 +#define DIRECT_CMD_PALL 0x01000000 +#define DIRECT_CMD_ZQINIT 0x0a000000 +#define DIRECT_CMD_CHANNEL_SHIFT 28 +#define DIRECT_CMD_CHIP_SHIFT 20 + +/* DMC PHY Control0 register */ +#define PHY_CONTROL0_RESET_VAL 0x0 +#define MEM_TERM_EN (1 << 31) /* Termination enable for memory */ +#define PHY_TERM_EN (1 << 30) /* Termination enable for PHY */ +#define DMC_CTRL_SHGATE (1 << 29) /* Duration of DQS gating signal */ +#define FP_RSYNC (1 << 3) /* Force DLL resyncronization */ + +/* Driver strength for CK, CKE, CS & CA */ +#define IMP_OUTPUT_DRV_40_OHM 0x5 +#define IMP_OUTPUT_DRV_30_OHM 0x7 +#define CA_CK_DRVR_DS_OFFSET 9 +#define CA_CKE_DRVR_DS_OFFSET 6 +#define CA_CS_DRVR_DS_OFFSET 3 +#define CA_ADR_DRVR_DS_OFFSET 0 + +#define PHY_CON42_CTRL_BSTLEN_SHIFT 8 +#define PHY_CON42_CTRL_RDLAT_SHIFT 0 + +struct mem_timings; + +/* Errors that we can encourter in low-level setup */ +enum { + SETUP_ERR_OK, + SETUP_ERR_RDLV_COMPLETE_TIMEOUT = -1, + SETUP_ERR_ZQ_CALIBRATION_FAILURE = -2, +}; + +/* Functions common between LPDDR2 and DDR3 */ + +/* CPU info initialization code */ +void cpu_info_init(void); + +void mem_ctrl_init(void); +/* + * Memory variant specific initialization code + * + * @param mem Memory timings for this memory type. + * @param mem_iv_size Memory interleaving size is a configurable parameter + * which the DMC uses to decide how to split a memory + * chunk into smaller chunks to support concurrent + * accesses; may vary across boards. + * @param mem_reset Reset memory during initialization. + * @return 0 if ok, SETUP_ERR_... if there is a problem + */ +int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size, + int mem_reset); + +/* + * Configure ZQ I/O interface + * + * @param mem Memory timings for this memory type. + * @param phy0_ctrl Pointer to struct containing PHY0 control reg + * @param phy1_ctrl Pointer to struct containing PHY1 control reg + * @return 0 if ok, -1 on error + */ +int dmc_config_zq(struct mem_timings *mem, + struct exynos5_phy_control *phy0_ctrl, + struct exynos5_phy_control *phy1_ctrl); + +/* + * Send NOP and MRS/EMRS Direct commands + * + * @param mem Memory timings for this memory type. + * @param dmc Pointer to struct of DMC registers + */ +void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc); + +/* + * Send PALL Direct commands + * + * @param mem Memory timings for this memory type. + * @param dmc Pointer to struct of DMC registers + */ +void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc); + +/* + * Configure the memconfig and membaseconfig registers + * + * @param mem Memory timings for this memory type. + * @param exynos5_dmc Pointer to struct of DMC registers + */ +void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc); + +/* Set the PS-Hold drive value */ +void ps_hold_setup(void); +/* + * Reset the DLL. This function is common between DDR3 and LPDDR2. + * However, the reset value is different. So we are passing a flag + * ddr_mode to distinguish between LPDDR2 and DDR3. + * + * @param exynos5_dmc Pointer to struct of DMC registers + * @param ddr_mode Type of DDR memory + */ +void update_reset_dll(struct exynos5_dmc *, enum ddr_mode); +#endif diff --git a/src/cpu/samsung/exynos5420/spi.c b/src/cpu/samsung/exynos5420/spi.c new file mode 100644 index 0000000..503cee9 --- /dev/null +++ b/src/cpu/samsung/exynos5420/spi.c @@ -0,0 +1,222 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Samsung Electronics + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <arch/io.h> +#include <stdlib.h> +#include <assert.h> +#include "gpio.h" +#include "clk.h" +#include "spi.h" + +#define OM_STAT (0x1f << 1) +#define EXYNOS_BASE_SPI1 ((void *)0x12d30000) + +#if defined(CONFIG_DEBUG_SPI) && CONFIG_DEBUG_SPI +# define DEBUG_SPI(x,...) printk(BIOS_DEBUG, "EXYNOS_SPI: " x) +#else +# define DEBUG_SPI(x,...) +#endif + +static void exynos_spi_rx_tx(struct exynos_spi *regs, int todo, + void *dinp, void const *doutp, int i) +{ + int rx_lvl, tx_lvl; + unsigned int *rxp = (unsigned int *)(dinp + (i * (32 * 1024))); + unsigned int out_bytes, in_bytes; + + // TODO In currrent implementation, every read/write must be aligned to + // 4 bytes, otherwise you may get timeout or other unexpected results. + ASSERT(todo % 4 == 0); + + out_bytes = in_bytes = todo; + setbits_le32(®s->ch_cfg, SPI_CH_RST); + clrbits_le32(®s->ch_cfg, SPI_CH_RST); + writel(((todo * 8) / 32) | SPI_PACKET_CNT_EN, ®s->pkt_cnt); + + while (in_bytes) { + uint32_t spi_sts; + int temp; + + spi_sts = readl(®s->spi_sts); + rx_lvl = ((spi_sts >> 15) & 0x7f); + tx_lvl = ((spi_sts >> 6) & 0x7f); + while (tx_lvl < 32 && out_bytes) { + // TODO The "writing" (tx) is not supported now; that's + // why we write garbage to keep driving FIFO clock. + temp = 0xffffffff; + writel(temp, ®s->tx_data); + out_bytes -= 4; + tx_lvl += 4; + } + while (rx_lvl >= 4 && in_bytes) { + temp = readl(®s->rx_data); + if (rxp) + *rxp++ = temp; + in_bytes -= 4; + rx_lvl -= 4; + } + } +} + +/* set up SPI channel */ +int exynos_spi_open(struct exynos_spi *regs) +{ + /* set the spi1 GPIO */ + + /* set pktcnt and enable it */ + writel(4 | SPI_PACKET_CNT_EN, ®s->pkt_cnt); + /* set FB_CLK_SEL */ + writel(SPI_FB_DELAY_180, ®s->fb_clk); + /* set CH_WIDTH and BUS_WIDTH as word */ + setbits_le32(®s->mode_cfg, + SPI_MODE_CH_WIDTH_WORD | SPI_MODE_BUS_WIDTH_WORD); + clrbits_le32(®s->ch_cfg, SPI_CH_CPOL_L); /* CPOL: active high */ + + /* clear rx and tx channel if set priveously */ + clrbits_le32(®s->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON); + + setbits_le32(®s->swap_cfg, + SPI_RX_SWAP_EN | SPI_RX_BYTE_SWAP | SPI_RX_HWORD_SWAP); + + /* do a soft reset */ + setbits_le32(®s->ch_cfg, SPI_CH_RST); + clrbits_le32(®s->ch_cfg, SPI_CH_RST); + + /* now set rx and tx channel ON */ + setbits_le32(®s->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON | SPI_CH_HS_EN); + clrbits_le32(®s->cs_reg, SPI_SLAVE_SIG_INACT); /* CS low */ + return 0; +} + +int exynos_spi_read(struct exynos_spi *regs, void *dest, u32 len, u32 off) +{ + int upto, todo; + int i; + /* Send read instruction (0x3h) followed by a 24 bit addr */ + writel((SF_READ_DATA_CMD << 24) | off, ®s->tx_data); + + /* waiting for TX done */ + while (!(readl(®s->spi_sts) & SPI_ST_TX_DONE)); + + for (upto = 0, i = 0; upto < len; upto += todo, i++) { + todo = MIN(len - upto, (1 << 15)); + exynos_spi_rx_tx(regs, todo, dest, (void *)(off), i); + } + + setbits_le32(®s->cs_reg, SPI_SLAVE_SIG_INACT);/* make the CS high */ + + /* + * Let put controller mode to BYTE as + * SPI driver does not support WORD mode yet + */ + clrbits_le32(®s->mode_cfg, + SPI_MODE_CH_WIDTH_WORD | SPI_MODE_BUS_WIDTH_WORD); + writel(0, ®s->swap_cfg); + + return len; +} + +int exynos_spi_close(struct exynos_spi *regs) +{ + /* + * Flush spi tx, rx fifos and reset the SPI controller + * and clear rx/tx channel + */ + clrsetbits_le32(®s->ch_cfg, SPI_CH_HS_EN, SPI_CH_RST); + clrbits_le32(®s->ch_cfg, SPI_CH_RST); + clrbits_le32(®s->ch_cfg, SPI_TX_CH_ON | SPI_RX_CH_ON); + return 0; +} + +// SPI as CBFS media. +struct exynos_spi_media { + struct exynos_spi *regs; + struct cbfs_simple_buffer buffer; +}; + +static int exynos_spi_cbfs_open(struct cbfs_media *media) { + struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context; + DEBUG_SPI("exynos_spi_cbfs_open\n"); + return exynos_spi_open(spi->regs); +} + +static int exynos_spi_cbfs_close(struct cbfs_media *media) { + struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context; + DEBUG_SPI("exynos_spi_cbfs_close\n"); + return exynos_spi_close(spi->regs); +} + +static size_t exynos_spi_cbfs_read(struct cbfs_media *media, void *dest, + size_t offset, size_t count) { + struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context; + int bytes; + DEBUG_SPI("exynos_spi_cbfs_read(%u)\n", count); + bytes = exynos_spi_read(spi->regs, dest, count, offset); + // Flush and re-open the device. + exynos_spi_close(spi->regs); + exynos_spi_open(spi->regs); + return bytes; +} + +static void *exynos_spi_cbfs_map(struct cbfs_media *media, size_t offset, + size_t count) { + struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context; + DEBUG_SPI("exynos_spi_cbfs_map\n"); + // See exynos_spi_rx_tx for I/O alignment limitation. + if (count % 4) + count += 4 - (count % 4); + return cbfs_simple_buffer_map(&spi->buffer, media, offset, count); +} + +static void *exynos_spi_cbfs_unmap(struct cbfs_media *media, + const void *address) { + struct exynos_spi_media *spi = (struct exynos_spi_media*)media->context; + DEBUG_SPI("exynos_spi_cbfs_unmap\n"); + return cbfs_simple_buffer_unmap(&spi->buffer, address); +} + +int initialize_exynos_spi_cbfs_media(struct cbfs_media *media, + void *buffer_address, + size_t buffer_size) { + // TODO Replace static variable to support multiple streams. + static struct exynos_spi_media context; + DEBUG_SPI("initialize_exynos_spi_cbfs_media\n"); + + context.regs = EXYNOS_BASE_SPI1; + context.buffer.allocated = context.buffer.last_allocate = 0; + context.buffer.buffer = buffer_address; + context.buffer.size = buffer_size; + media->context = (void*)&context; + media->open = exynos_spi_cbfs_open; + media->close = exynos_spi_cbfs_close; + media->read = exynos_spi_cbfs_read; + media->map = exynos_spi_cbfs_map; + media->unmap = exynos_spi_cbfs_unmap; + + return 0; +} + +int init_default_cbfs_media(struct cbfs_media *media) { + return initialize_exynos_spi_cbfs_media( + media, + (void*)CONFIG_CBFS_CACHE_ADDRESS, + CONFIG_CBFS_CACHE_SIZE); +} diff --git a/src/cpu/samsung/exynos5420/spi.h b/src/cpu/samsung/exynos5420/spi.h new file mode 100644 index 0000000..faf82b0 --- /dev/null +++ b/src/cpu/samsung/exynos5420/spi.h @@ -0,0 +1,98 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_SPI_H +#define CPU_SAMSUNG_EXYNOS5420_SPI_H + +/* This driver serves as a CBFS media source. */ +#include <cbfs.h> + +/* SPI peripheral register map; padded to 64KB */ +struct exynos_spi { + unsigned int ch_cfg; /* 0x00 */ + unsigned char reserved0[4]; + unsigned int mode_cfg; /* 0x08 */ + unsigned int cs_reg; /* 0x0c */ + unsigned char reserved1[4]; + unsigned int spi_sts; /* 0x14 */ + unsigned int tx_data; /* 0x18 */ + unsigned int rx_data; /* 0x1c */ + unsigned int pkt_cnt; /* 0x20 */ + unsigned char reserved2[4]; + unsigned int swap_cfg; /* 0x28 */ + unsigned int fb_clk; /* 0x2c */ + unsigned char padding[0xffd0]; +}; + +#define EXYNOS_SPI_MAX_FREQ 50000000 + +#define SPI_TIMEOUT_MS 10 + +#define SF_READ_DATA_CMD 0x3 + +/* SPI_CHCFG */ +#define SPI_CH_HS_EN (1 << 6) +#define SPI_CH_RST (1 << 5) +#define SPI_SLAVE_MODE (1 << 4) +#define SPI_CH_CPOL_L (1 << 3) +#define SPI_CH_CPHA_B (1 << 2) +#define SPI_RX_CH_ON (1 << 1) +#define SPI_TX_CH_ON (1 << 0) + +/* SPI_MODECFG */ +#define SPI_MODE_CH_WIDTH_WORD (0x2 << 29) +#define SPI_MODE_BUS_WIDTH_WORD (0x2 << 17) + +/* SPI_CSREG */ +#define SPI_SLAVE_SIG_INACT (1 << 0) + +/* SPI_STS */ +#define SPI_ST_TX_DONE (1 << 25) +#define SPI_FIFO_LVL_MASK 0x1ff +#define SPI_TX_LVL_OFFSET 6 +#define SPI_RX_LVL_OFFSET 15 + +/* Feedback Delay */ +#define SPI_CLK_BYPASS (0 << 0) +#define SPI_FB_DELAY_90 (1 << 0) +#define SPI_FB_DELAY_180 (2 << 0) +#define SPI_FB_DELAY_270 (3 << 0) + +/* Packet Count */ +#define SPI_PACKET_CNT_EN (1 << 16) + +/* Swap config */ +#define SPI_TX_SWAP_EN (1 << 0) +#define SPI_TX_BYTE_SWAP (1 << 2) +#define SPI_TX_HWORD_SWAP (1 << 3) +#define SPI_TX_BYTE_SWAP (1 << 2) +#define SPI_RX_SWAP_EN (1 << 4) +#define SPI_RX_BYTE_SWAP (1 << 6) +#define SPI_RX_HWORD_SWAP (1 << 7) + +/* API */ +int exynos_spi_open(struct exynos_spi *regs); +int exynos_spi_read(struct exynos_spi *regs, void *dest, u32 len, u32 off); +int exynos_spi_close(struct exynos_spi *regs); + +/* Serve as CBFS media source */ +int initialize_exynos_spi_cbfs_media(struct cbfs_media *media, + void *buffer_address, + size_t buffer_size); +#endif diff --git a/src/cpu/samsung/exynos5420/sysreg.h b/src/cpu/samsung/exynos5420/sysreg.h new file mode 100644 index 0000000..3af95d2 --- /dev/null +++ b/src/cpu/samsung/exynos5420/sysreg.h @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 sysreg */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_SYSREG_H +#define CPU_SAMSUNG_EXYNOS5420_SYSREG_H + +/* sysreg map */ +struct exynos5_sysreg { + /* Add registers as and when required */ + unsigned char res1[0x214]; + unsigned int disp1blk_cfg; + unsigned char res2[0x18]; + unsigned int usb20_phy_cfg; +}; + +#define FIMDBYPASS_DISP1 (1 << 15) +#define USB20_PHY_CFG_EN (1 << 0) + +#endif diff --git a/src/cpu/samsung/exynos5420/timer.c b/src/cpu/samsung/exynos5420/timer.c new file mode 100644 index 0000000..405effa --- /dev/null +++ b/src/cpu/samsung/exynos5420/timer.c @@ -0,0 +1,110 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <arch/io.h> +#include <timer.h> +#include <delay.h> +#include "timer.h" +#include "pwm.h" +#include "clk.h" +#include "cpu.h" + +static unsigned long long timer_reset_value; +static unsigned long lastinc; + +/* macro to read the 16 bit timer */ +static inline struct s5p_timer *s5p_get_base_timer(void) +{ + return samsung_get_base_timer(); +} + +/** + * Read the countdown timer. + * + * This operates at 1MHz and counts downwards. It will wrap about every + * hour (2^32 microseconds). + * + * @return current value of timer + */ +static unsigned long timer_get_us_down(void) +{ + struct s5p_timer *const timer = s5p_get_base_timer(); + + return readl(&timer->tcnto4); +} + +void init_timer(void) +{ + /* Timer may have been enabled in SPL */ + if (!pwm_check_enabled(4)) { + /* PWM Timer 4 */ + pwm_init(4, MUX_DIV_4, 0); + pwm_config(4, 100000, 100000); + pwm_enable(4); + + /* Use this as the current monotonic time in us */ + timer_reset_value = 0; + + /* Use this as the last timer value we saw */ + lastinc = timer_get_us_down(); + } +} + +/* + * timer without interrupts + */ +unsigned long get_timer(unsigned long base) +{ + unsigned long now = timer_get_us_down(); + + /* + * Increment the time by the amount elapsed since the last read. + * The timer may have wrapped around, but it makes no difference to + * our arithmetic here. + */ + timer_reset_value += lastinc - now; + lastinc = now; + + /* Divide by 1000 to convert from us to ms */ + return timer_reset_value / 1000 - base; +} + +/* delay x useconds */ +void udelay(unsigned usec) +{ + struct mono_time current, end; + + timer_monotonic_get(¤t); + end = current; + mono_time_add_usecs(&end, usec); + + if (mono_time_after(¤t, &end)) { + printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n", + usec); + /* There's not much we can do if usec is too big. Use a long, + * paranoid delay value and hope for the best... */ + end = current; + mono_time_add_usecs(&end, USECS_PER_SEC); + } + + while (mono_time_before(¤t, &end)) + timer_monotonic_get(¤t); +} + diff --git a/src/cpu/samsung/exynos5420/timer.h b/src/cpu/samsung/exynos5420/timer.h new file mode 100644 index 0000000..f02d58a --- /dev/null +++ b/src/cpu/samsung/exynos5420/timer.h @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_TIMER_H +#define CPU_SAMSUNG_EXYNOS5420_TIMER_H + +unsigned long get_timer(unsigned long base); + +#endif diff --git a/src/cpu/samsung/exynos5420/tmu.c b/src/cpu/samsung/exynos5420/tmu.c new file mode 100644 index 0000000..1b04b6c --- /dev/null +++ b/src/cpu/samsung/exynos5420/tmu.c @@ -0,0 +1,215 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* EXYNOS - Thermal Management Unit */ + +#include <console/console.h> +#include <arch/io.h> +#include "power.h" +#include "tmu.h" + +#define TRIMINFO_RELOAD 1 +#define CORE_EN 1 +#define THERM_TRIP_EN (1 << 12) + +#define INTEN_RISE0 1 +#define INTEN_RISE1 (1 << 4) +#define INTEN_RISE2 (1 << 8) +#define INTEN_FALL0 (1 << 16) +#define INTEN_FALL1 (1 << 20) +#define INTEN_FALL2 (1 << 24) + +#define TRIM_INFO_MASK 0xff + +#define INTCLEAR_RISE0 1 +#define INTCLEAR_RISE1 (1 << 4) +#define INTCLEAR_RISE2 (1 << 8) +#define INTCLEAR_FALL0 (1 << 16) +#define INTCLEAR_FALL1 (1 << 20) +#define INTCLEAR_FALL2 (1 << 24) +#define INTCLEARALL (INTCLEAR_RISE0 | INTCLEAR_RISE1 | \ + INTCLEAR_RISE2 | INTCLEAR_FALL0 | \ + INTCLEAR_FALL1 | INTCLEAR_FALL2) + +struct tmu_info exynos5420_tmu_info = { + .tmu_base = 0x10060000, + .tmu_mux = 6, + .data = { + .ts = { + .min_val = 25, + .max_val = 125, + .start_warning = 95, + .start_tripping = 105, + .hardware_tripping = 110, + }, + .efuse_min_value = 40, + .efuse_value = 55, + .efuse_max_value = 100, + .slope = 0x10008802, + }, + .dc_value = 25, +}; + +/* + * After reading temperature code from register, compensating + * its value and calculating celsius temperatue, + * get current temperatue. + * + * @return current temperature of the chip as sensed by TMU + */ +static int get_cur_temp(struct tmu_info *info) +{ + int cur_temp; + struct tmu_reg *reg = (struct tmu_reg *)info->tmu_base; + + /* Temperature code range between min 25 and max 125 */ + cur_temp = readl(®->current_temp) & 0xff; + + /* Calibrate current temperature */ + if (cur_temp) + cur_temp = cur_temp - info->te1 + info->dc_value; + + return cur_temp; +} + +/* + * Monitors status of the TMU device and exynos temperature + * + * @info TMU info + * @temp pointer to the current temperature value + * @return enum tmu_status_t value, code indicating event to execute + */ +enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp) +{ + if (info->tmu_state == TMU_STATUS_INIT) + return -1; + + int cur_temp; + struct tmu_data *data = &info->data; + + /* Read current temperature of the SOC */ + cur_temp = get_cur_temp(info); + *temp = cur_temp; + + /* Temperature code lies between min 25 and max 125 */ + if (cur_temp >= data->ts.start_tripping && + cur_temp <= data->ts.max_val) + return TMU_STATUS_TRIPPED; + else if (cur_temp >= data->ts.start_warning) + return TMU_STATUS_WARNING; + else if (cur_temp < data->ts.start_warning && + cur_temp >= data->ts.min_val) + return TMU_STATUS_NORMAL; + /* Temperature code does not lie between min 25 and max 125 */ + else { + info->tmu_state = TMU_STATUS_INIT; + printk(BIOS_DEBUG, "EXYNOS_TMU: Thermal reading failed\n"); + return -1; + } + return 0; +} + +/* + * Calibrate and calculate threshold values and + * enable interrupt levels + * + * @param info pointer to the tmu_info struct + */ +static void tmu_setup_parameters(struct tmu_info *info) +{ + unsigned int te_temp, con; + unsigned int warning_code, trip_code, hwtrip_code; + unsigned int cooling_temp; + unsigned int rising_value; + struct tmu_data *data = &info->data; + struct tmu_reg *reg = (struct tmu_reg *)info->tmu_base; + + /* Must reload for using efuse value at EXYNOS */ + writel(TRIMINFO_RELOAD, ®->triminfo_control); + + /* Get the compensation parameter */ + te_temp = readl(®->triminfo); + info->te1 = te_temp & TRIM_INFO_MASK; + info->te2 = ((te_temp >> 8) & TRIM_INFO_MASK); + + if ((data->efuse_min_value > info->te1) || + (info->te1 > data->efuse_max_value) + || (info->te2 != 0)) + info->te1 = data->efuse_value; + + /* Get RISING & FALLING Threshold value */ + warning_code = data->ts.start_warning + + info->te1 - info->dc_value; + trip_code = data->ts.start_tripping + + info->te1 - info->dc_value; + hwtrip_code = data->ts.hardware_tripping + + info->te1 - info->dc_value; + + cooling_temp = 0; + + rising_value = ((warning_code << 8) | + (trip_code << 16) | + (hwtrip_code << 24)); + + /* Set interrupt level */ + writel(rising_value, ®->threshold_temp_rise); + writel(cooling_temp, ®->threshold_temp_fall); + + /* + * Need to init all register settings after getting parameter info + * [28:23] vref [11:8] slope - Tuning parameter + * + * WARNING: this slope value writes into many bits in the tmu_control + * register, with the default FDT value of 268470274 (0x10008802) + * we are using this essentially sets the default register setting + * from the TRM for tmu_control. + * TODO(bhthompson): rewrite this code such that we are not performing + * a hard wipe of tmu_control and re verify functionality. + */ + writel(data->slope, ®->tmu_control); + + writel(INTCLEARALL, ®->intclear); + /* TMU core enable */ + con = readl(®->tmu_control); + con |= (info->tmu_mux << 20) | THERM_TRIP_EN | CORE_EN; + + writel(con, ®->tmu_control); + + /* Enable HW thermal trip */ + power_enable_hw_thermal_trip(); + + /* LEV1 LEV2 interrupt enable */ + writel(INTEN_RISE1 | INTEN_RISE2, ®->inten); +} + +/* + * Initialize TMU device + * + * @return int value, 0 for success + */ +int tmu_init(struct tmu_info *info) +{ + info->tmu_state = TMU_STATUS_INIT; + + tmu_setup_parameters(info); + info->tmu_state = TMU_STATUS_NORMAL; + + return 0; +} diff --git a/src/cpu/samsung/exynos5420/tmu.h b/src/cpu/samsung/exynos5420/tmu.h new file mode 100644 index 0000000..cf81b9a --- /dev/null +++ b/src/cpu/samsung/exynos5420/tmu.h @@ -0,0 +1,134 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* EXYNOS - Thermal Management Unit */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_TMU_H +#define CPU_SAMSUNG_EXYNOS5420_TMU_H + +struct tmu_reg { + unsigned triminfo; + unsigned rsvd1; + unsigned rsvd2; + unsigned rsvd3; + unsigned rsvd4; + unsigned triminfo_control; + unsigned rsvd5; + unsigned rsvd6; + unsigned tmu_control; + unsigned rsvd7; + unsigned tmu_status; + unsigned sampling_internal; + unsigned counter_value0; + unsigned counter_value1; + unsigned rsvd8; + unsigned rsvd9; + unsigned current_temp; + unsigned rsvd10; + unsigned rsvd11; + unsigned rsvd12; + unsigned threshold_temp_rise; + unsigned threshold_temp_fall; + unsigned rsvd13; + unsigned rsvd14; + unsigned past_temp3_0; + unsigned past_temp7_4; + unsigned past_temp11_8; + unsigned past_temp15_12; + unsigned inten; + unsigned intstat; + unsigned intclear; + unsigned rsvd15; + unsigned emul_con; +}; + +enum tmu_status_t { + TMU_STATUS_INIT = 0, + TMU_STATUS_NORMAL, + TMU_STATUS_WARNING, + TMU_STATUS_TRIPPED, +}; + +/* Tmeperature threshold values for various thermal events */ +struct temperature_params { + /* minimum value in temperature code range */ + unsigned int min_val; + /* maximum value in temperature code range */ + unsigned int max_val; + /* temperature threshold to start warning */ + unsigned int start_warning; + /* temperature threshold CPU tripping */ + unsigned int start_tripping; + /* temperature threshold for HW tripping */ + unsigned int hardware_tripping; +}; + +/* Pre-defined values and thresholds for calibration of current temperature */ +struct tmu_data { + /* pre-defined temperature thresholds */ + struct temperature_params ts; + /* pre-defined efuse range minimum value */ + unsigned int efuse_min_value; + /* pre-defined efuse value for temperature calibration */ + unsigned int efuse_value; + /* pre-defined efuse range maximum value */ + unsigned int efuse_max_value; + /* current temperature sensing slope */ + unsigned int slope; +}; + +/* TMU device specific details and status */ +struct tmu_info { + /* base Address for the TMU */ + unsigned tmu_base; + /* mux Address for the TMU */ + int tmu_mux; + /* pre-defined values for calibration and thresholds */ + struct tmu_data data; + /* value required for triminfo_25 calibration */ + unsigned int te1; + /* value required for triminfo_85 calibration */ + unsigned int te2; + /* TMU DC value for threshold calculation */ + int dc_value; + /* enum value indicating status of the TMU */ + int tmu_state; +}; + +extern struct tmu_info *tmu_info; + +/* + * Monitors status of the TMU device and exynos temperature + * + * @info pointer to TMU info struct + * @temp pointer to the current temperature value + * @return enum tmu_status_t value, code indicating event to execute + * and -1 on error + */ +enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp); + +/* + * Initialize TMU device + * + * @info pointer to TMU info struct + * @return int value, 0 for success + */ +int tmu_init(struct tmu_info *info); + +#endif /* CPU_SAMSUNG_EXYNOS5420_TMU_H */ diff --git a/src/cpu/samsung/exynos5420/uart.c b/src/cpu/samsung/exynos5420/uart.c new file mode 100644 index 0000000..2dea033 --- /dev/null +++ b/src/cpu/samsung/exynos5420/uart.c @@ -0,0 +1,200 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> /* for __console definition */ +#include <uart.h> +#include <arch/io.h> +#include "uart.h" +#include "clk.h" +#include "cpu.h" + +#define RX_FIFO_COUNT_MASK 0xff +#define RX_FIFO_FULL_MASK (1 << 8) +#define TX_FIFO_FULL_MASK (1 << 24) + +/* FIXME(dhendrix): exynos5 has 4 UARTs and its functions in u-boot take a + base_port argument. However console_driver functions do not. */ +static uint32_t base_port = CONFIG_CONSOLE_SERIAL_UART_ADDRESS; + +/* + * The coefficient, used to calculate the baudrate on S5P UARTs is + * calculated as + * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT + * however, section 31.6.11 of the datasheet doesn't recomment using 1 for 1, + * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants: + */ +static const int udivslot[] = { + 0, + 0x0080, + 0x0808, + 0x0888, + 0x2222, + 0x4924, + 0x4a52, + 0x54aa, + 0x5555, + 0xd555, + 0xd5d5, + 0xddd5, + 0xdddd, + 0xdfdd, + 0xdfdf, + 0xffdf, +}; + +static void serial_setbrg_dev(void) +{ + struct s5p_uart *uart = (struct s5p_uart *)base_port; + u32 uclk; + u32 baudrate = CONFIG_TTYS0_BAUD; + u32 val; + + // All UARTs share the same clock. + uclk = clock_get_periph_rate(PERIPH_ID_UART3); + val = uclk / baudrate; + + writel(val / 16 - 1, &uart->ubrdiv); + + /* + * FIXME(dhendrix): the original uart.h had a "br_rest" value which + * does not seem relevant to the exynos5420... not entirely sure + * where/if we need to worry about it here + */ +#if 0 + if (s5p_uart_divslot()) + writel(udivslot[val % 16], &uart->rest.slot); + else + writeb(val % 16, &uart->rest.value); +#endif +} + +/* + * Initialise the serial port with the given baudrate. The settings + * are always 8 data bits, no parity, 1 stop bit, no start bits. + */ +static void exynos5_init_dev(void) +{ + struct s5p_uart *uart = (struct s5p_uart *)base_port; + + // TODO initialize with correct peripheral id by base_port. + exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE); + + /* enable FIFOs */ + writel(0x1, &uart->ufcon); + writel(0, &uart->umcon); + /* 8N1 */ + writel(0x3, &uart->ulcon); + /* No interrupts, no DMA, pure polling */ + writel(0x245, &uart->ucon); + + serial_setbrg_dev(); +} + +static int exynos5_uart_err_check(int op) +{ + struct s5p_uart *uart = (struct s5p_uart *)base_port; + unsigned int mask; + + /* + * UERSTAT + * Break Detect [3] + * Frame Err [2] : receive operation + * Parity Err [1] : receive operation + * Overrun Err [0] : receive operation + */ + if (op) + mask = 0x8; + else + mask = 0xf; + + return readl(&uart->uerstat) & mask; +} + +/* + * Read a single byte from the serial port. Returns 1 on success, 0 + * otherwise. When the function is succesfull, the character read is + * written into its argument c. + */ +static unsigned char exynos5_uart_rx_byte(void) +{ + struct s5p_uart *uart = (struct s5p_uart *)base_port; + + /* wait for character to arrive */ + while (!(readl(&uart->ufstat) & (RX_FIFO_COUNT_MASK | + RX_FIFO_FULL_MASK))) { + if (exynos5_uart_err_check(0)) + return 0; + } + + return readb(&uart->urxh) & 0xff; +} + +/* + * Output a single byte to the serial port. + */ +static void exynos5_uart_tx_byte(unsigned char data) +{ + struct s5p_uart *uart = (struct s5p_uart *)base_port; + + /* wait for room in the tx FIFO */ + while ((readl(&uart->ufstat) & TX_FIFO_FULL_MASK)) { + if (exynos5_uart_err_check(1)) + return; + } + + writeb(data, &uart->utxh); +} + +#if !defined(__PRE_RAM__) + +static const struct console_driver exynos5_uart_console __console = { + .init = exynos5_init_dev, + .tx_byte = exynos5_uart_tx_byte, +// .tx_flush = exynos5_uart_tx_flush, + .rx_byte = exynos5_uart_rx_byte, +// .tst_byte = exynos5_uart_tst_byte, +}; + +uint32_t uartmem_getbaseaddr(void) +{ + return base_port; +} + +#else + +void uart_init(void) +{ + exynos5_init_dev(); +} + +unsigned char uart_rx_byte(void) +{ + return exynos5_uart_rx_byte(); +} + +void uart_tx_byte(unsigned char data) +{ + exynos5_uart_tx_byte(data); +} + +void uart_tx_flush(void) +{ +} + +#endif diff --git a/src/cpu/samsung/exynos5420/uart.h b/src/cpu/samsung/exynos5420/uart.h new file mode 100644 index 0000000..dcf9ed7 --- /dev/null +++ b/src/cpu/samsung/exynos5420/uart.h @@ -0,0 +1,54 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * Copyright (C) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_UART_H +#define CPU_SAMSUNG_EXYNOS5420_UART_H + +#define EXYNOS5_UART0_BASE 0x12c00000 +#define EXYNOS5_UART1_BASE 0x12c10000 +#define EXYNOS5_UART2_BASE 0x12c20000 +#define EXYNOS5_UART3_BASE 0x12c30000 +#define EXYNOS5_ISP_UART_BASE 0x13190000 + +/* baudrate rest value */ +union br_rest { + unsigned short slot; /* udivslot */ + unsigned char value; /* ufracval */ +}; + +struct s5p_uart { + unsigned int ulcon; + unsigned int ucon; + unsigned int ufcon; + unsigned int umcon; + unsigned int utrstat; + unsigned int uerstat; + unsigned int ufstat; + unsigned int umstat; + unsigned char utxh; + unsigned char res1[3]; + unsigned char urxh; + unsigned char res2[3]; + unsigned int ubrdiv; + union br_rest rest; + unsigned char res3[0xffd0]; +}; + +#endif diff --git a/src/cpu/samsung/exynos5420/wakeup.c b/src/cpu/samsung/exynos5420/wakeup.c new file mode 100644 index 0000000..5764c83 --- /dev/null +++ b/src/cpu/samsung/exynos5420/wakeup.c @@ -0,0 +1,50 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include "power.h" +#include "wakeup.h" + +void wakeup(void) +{ + if (wakeup_need_reset()) + power_reset(); + + power_init(); /* Ensure ps_hold_setup() for early wakeup. */ + power_exit_wakeup(); + /* Should never return. */ + die("Failed to wake up.\n"); +} + +int get_wakeup_state(void) +{ + uint32_t status = power_read_reset_status(); + + /* DIDLE/LPA can be resumed without clock reset (ex, bootblock), + * and SLEEP requires resetting clock (should be done in ROM stage). + */ + + if (status == S5P_CHECK_DIDLE || status == S5P_CHECK_LPA) + return WAKEUP_DIRECT; + + if (status == S5P_CHECK_SLEEP) + return WAKEUP_NEED_CLOCK_RESET; + + return IS_NOT_WAKEUP; +} diff --git a/src/cpu/samsung/exynos5420/wakeup.h b/src/cpu/samsung/exynos5420/wakeup.h new file mode 100644 index 0000000..2658875 --- /dev/null +++ b/src/cpu/samsung/exynos5420/wakeup.h @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_WAKEUP_H +#define CPU_SAMSUNG_EXYNOS5420_WAKEUP_H + +/* Power Down Modes */ +#define S5P_CHECK_SLEEP 0x00000BAD +#define S5P_CHECK_DIDLE 0xBAD00000 +#define S5P_CHECK_LPA 0xABAD0000 + +enum { + // A normal boot (not suspend/resume) + IS_NOT_WAKEUP, + // A wake up event that can be resumed any time + WAKEUP_DIRECT, + // A wake up event that must be resumed only after + // clock and memory controllers are re-initialized + WAKEUP_NEED_CLOCK_RESET, +}; + +int wakeup_need_reset(void); +int get_wakeup_state(void); +void wakeup(void); + +#endif /* CPU_SAMSUNG_EXYNOS5420_WAKEUP_H */ diff --git a/src/mainboard/google/snow/Kconfig b/src/mainboard/google/snow/Kconfig index 3ebaa58..91bd66d 100644 --- a/src/mainboard/google/snow/Kconfig +++ b/src/mainboard/google/snow/Kconfig @@ -22,7 +22,7 @@ if BOARD_GOOGLE_SNOW config BOARD_SPECIFIC_OPTIONS # dummy def_bool y select ARCH_ARMV7 - select CPU_SAMSUNG_EXYNOS5 + select CPU_SAMSUNG_EXYNOS5250 select HAVE_UART_MEMORY_MAPPED select EC_GOOGLE_CHROMEEC select EC_GOOGLE_CHROMEEC_I2C