Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33133
Change subject: cpu/allwinner: Remove support ......................................................................
cpu/allwinner: Remove support
The Allwinner code was never completed and lacks a driver to load romstage from the bootblock.
Change-Id: If2bae9e28a6e1ed6bfe0e9cb022ca410918cc4db Signed-off-by: Arthur Heymans arthur@aheymans.xyz --- D src/cpu/allwinner/Kconfig D src/cpu/allwinner/Makefile.inc D src/cpu/allwinner/a10/Kconfig D src/cpu/allwinner/a10/Makefile.inc D src/cpu/allwinner/a10/bootblock.c D src/cpu/allwinner/a10/bootblock_media.c D src/cpu/allwinner/a10/cbmem.c D src/cpu/allwinner/a10/chip.h D src/cpu/allwinner/a10/clock.c D src/cpu/allwinner/a10/clock.h D src/cpu/allwinner/a10/cpu.c D src/cpu/allwinner/a10/dramc.h D src/cpu/allwinner/a10/gpio.c D src/cpu/allwinner/a10/gpio.h D src/cpu/allwinner/a10/memmap.h D src/cpu/allwinner/a10/monotonic_timer.c D src/cpu/allwinner/a10/pinmux.c D src/cpu/allwinner/a10/ram_segs.h D src/cpu/allwinner/a10/raminit.c D src/cpu/allwinner/a10/timer.c D src/cpu/allwinner/a10/timer.h D src/cpu/allwinner/a10/twi.c D src/cpu/allwinner/a10/twi.h D src/cpu/allwinner/a10/uart.c D src/cpu/allwinner/a10/uart.h D src/cpu/allwinner/a10/uart_console.c 26 files changed, 0 insertions(+), 2,673 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/33133/1
diff --git a/src/cpu/allwinner/Kconfig b/src/cpu/allwinner/Kconfig deleted file mode 100644 index d97cb64..0000000 --- a/src/cpu/allwinner/Kconfig +++ /dev/null @@ -1 +0,0 @@ -source src/cpu/allwinner/a10/Kconfig diff --git a/src/cpu/allwinner/Makefile.inc b/src/cpu/allwinner/Makefile.inc deleted file mode 100644 index e52a12e..0000000 --- a/src/cpu/allwinner/Makefile.inc +++ /dev/null @@ -1 +0,0 @@ -subdirs-$(CONFIG_CPU_ALLWINNER_A10) += a10 diff --git a/src/cpu/allwinner/a10/Kconfig b/src/cpu/allwinner/a10/Kconfig deleted file mode 100644 index 87693ed..0000000 --- a/src/cpu/allwinner/a10/Kconfig +++ /dev/null @@ -1,18 +0,0 @@ -config CPU_ALLWINNER_A10 - bool - default n - -if CPU_ALLWINNER_A10 - -config CPU_SPECIFIC_OPTIONS - def_bool y - select ARCH_BOOTBLOCK_ARMV7 - select ARCH_VERSTAGE_ARMV7 - select ARCH_ROMSTAGE_ARMV7 - select ARCH_RAMSTAGE_ARMV7 - select HAVE_MONOTONIC_TIMER - select HAVE_UART_SPECIAL - select UART_OVERRIDE_REFCLK - select BOOT_DEVICE_NOT_SPI_FLASH - -endif # if CPU_ALLWINNER_A10 diff --git a/src/cpu/allwinner/a10/Makefile.inc b/src/cpu/allwinner/a10/Makefile.inc deleted file mode 100644 index a6cd4b4..0000000 --- a/src/cpu/allwinner/a10/Makefile.inc +++ /dev/null @@ -1,56 +0,0 @@ -bootblock-y += bootblock.c -bootblock-y += bootblock_media.c -bootblock-y += clock.c -bootblock-y += gpio.c -bootblock-y += pinmux.c -bootblock-y += raminit.c -bootblock-y += timer.c - -romstage-y += bootblock_media.c -romstage-y += cbmem.c -romstage-y += clock.c -romstage-y += pinmux.c -romstage-y += timer.c -romstage-y += twi.c - -ramstage-y += bootblock_media.c -ramstage-y += cbmem.c -ramstage-y += clock.c -ramstage-y += cpu.c -ramstage-y += monotonic_timer.c -ramstage-y += timer.c -ramstage-y += twi.c - -bootblock-y += uart.c uart_console.c -romstage-y += uart.c uart_console.c -ramstage-y += uart.c uart_console.c - -real-target: $(obj)/BOOT0 - -get_bootblock_size= \ - $(eval bb_s=$(shell $(CBFSTOOL) $(1) print | grep bootblocksize | \ - sed 's/[^0-9 ]//g')) \ - $(shell echo $$(($(word 2, $(strip $(bb_s)))))) - -# This tool is used to prepend a header to coreboot.rom to trick the SoC into -# loading out bootblock -# -MKSUNXIBOOT:=$(objutil)/mksunxiboot -$(MKSUNXIBOOT): $(top)/util/arm_boot_tools/mksunxiboot/mksunxiboot.c - @printf " HOSTCC $(subst $(obj)/,,$(@))\n" - $(HOSTCC) $(HOSTCFLAGS) -o $@ $< - -# The boot ROM in the SoC will start loading code if a special BOOT0 header is -# found (at an offset of 8KiB in either NAND or SD), and the checksum is -# correct. This header is added by the 'mxsunxiboot' tool, which is provided -# under util/arm_boot_tools/mksunxiboot. The boot ROM will load at most 24KiB of -# data to SRAM. The BOOT0 header takes 32 bytes, so bootblock is limited to -# 24KiB - 32 bytes. -# TODO: make mksunxiboot take the bootblock size as a parameter -# TODO: print an error if bootblock is too large (maybe place ROMSTAGE at the -# exact offset needed to collide with the bootblock) -# FIXME: A10 loads 24KiB. According to Oliver other chips load a little more -# -$(obj)/BOOT0: $(obj)/coreboot.rom $(MKSUNXIBOOT) - @printf " BOOT0 $(subst $(obj)/,,$(^))\n" - $(MKSUNXIBOOT) $(word 1, $^) $@ diff --git a/src/cpu/allwinner/a10/bootblock.c b/src/cpu/allwinner/a10/bootblock.c deleted file mode 100644 index 471104b..0000000 --- a/src/cpu/allwinner/a10/bootblock.c +++ /dev/null @@ -1,33 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Google Inc. - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 bootblock initialization - * - */ - -#include <types.h> -#include <arch/cache.h> -#include <bootblock_common.h> - -void bootblock_soc_init(void) -{ - uint32_t sctlr; - - /* enable dcache */ - sctlr = read_sctlr(); - sctlr |= SCTLR_C; - write_sctlr(sctlr); -} diff --git a/src/cpu/allwinner/a10/bootblock_media.c b/src/cpu/allwinner/a10/bootblock_media.c deleted file mode 100644 index c89cac0..0000000 --- a/src/cpu/allwinner/a10/bootblock_media.c +++ /dev/null @@ -1,26 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * CBFS accessors for bootblock stage. - * - */ -#include <boot_device.h> -#include <console/console.h> - -const struct region_device *boot_device_ro(void) -{ - printk(BIOS_ERR, "Oh my! I don't know how to access CBFS yet."); - return NULL; -} diff --git a/src/cpu/allwinner/a10/cbmem.c b/src/cpu/allwinner/a10/cbmem.c deleted file mode 100644 index a4c563a3..0000000 --- a/src/cpu/allwinner/a10/cbmem.c +++ /dev/null @@ -1,26 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Provides cbmem utilities for romstage and ramstage - * - */ - -#include "ram_segs.h" -#include <cbmem.h> - -void *cbmem_top(void) -{ - return a1x_get_cbmem_top(); -} diff --git a/src/cpu/allwinner/a10/chip.h b/src/cpu/allwinner/a10/chip.h deleted file mode 100644 index af419ea..0000000 --- a/src/cpu/allwinner/a10/chip.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinnwer A10 devicetree config struct - * - */ - -#include <types.h> - -struct cpu_allwinner_a10_config { -}; diff --git a/src/cpu/allwinner/a10/clock.c b/src/cpu/allwinner/a10/clock.c deleted file mode 100644 index 76198b7..0000000 --- a/src/cpu/allwinner/a10/clock.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Helpers for clock control and gating on Allwinner CPUs - */ - -#include "clock.h" - -#include <device/mmio.h> -#include <console/console.h> -#include <delay.h> -#include <lib.h> -#include <stdlib.h> - -static struct a10_ccm *const ccm = (void *)A1X_CCM_BASE; - -/** - * \brief Enable the clock source for the peripheral - * - * @param[in] periph peripheral and clock type to enable @see a1x_clken - */ -void a1x_periph_clock_enable(enum a1x_clken periph) -{ - void *addr; - u32 reg32; - - addr = (void *)A1X_CCM_BASE + (periph >> 5); - reg32 = read32(addr); - reg32 |= 1 << (periph & 0x1f); - write32(addr, reg32); -} - -/** - * \brief Disable the clock source for the peripheral - * - * @param[in] periph peripheral and clock type to disable @see a1x_clken - */ -void a1x_periph_clock_disable(enum a1x_clken periph) -{ - void *addr; - u32 reg32; - - addr = (void *)A1X_CCM_BASE + (periph >> 5); - reg32 = read32(addr); - reg32 &= ~(1 << (periph & 0x1f)); - write32(addr, reg32); -} - -/** - * \brief Configure PLL5 factors - * - * This is a low-level accessor to configure the divisors and multipliers of - * PLL5. PLL5 uses two factors to multiply the 24MHz oscillator clock to - * generate a pre-clock. The pre-divided clock is then divided by one of two - * independent divisors, one for DRAM, and another for peripherals clocked from - * this PLL. If the PLL was previously disabled, this function will enable it. - * Other than that, this function only modifies these factors, and leaves the - * other settings unchanged. - * - * The output clocks are given by the following formulas: - * - * Pre-clock = (24 MHz * N * K) <- Must be between 240MHz and 2GHz - * DRAM clock = pre / M - * Other module = pre / P - * - * It is the caller's responsibility to make sure the pre-divided clock falls - * within the operational range of the PLL, and that the divisors and - * multipliers are within their ranges. - * - * @param[in] mul_n Multiplier N, between 0 and 32 - * @param[in] mul_k Multiplier K, between 1 and 4 - * @param[in] div_m DRAM clock divisor, between 1 and 4 - * @param[in] exp_div_p Peripheral clock divisor exponent, between 0 and 3 - * (P = 1/2/4/8, respectively) - */ -void a1x_pll5_configure(u8 mul_n, u8 mul_k, u8 div_m, u8 exp_div_p) -{ - u32 reg32; - - reg32 = read32(&ccm->pll5_cfg); - reg32 &= ~(PLL5_FACTOR_M_MASK | PLL5_FACTOR_N_MASK | - PLL5_FACTOR_K_MASK | PLL5_DIV_EXP_P_MASK); - /* The M1 factor is not documented in the datasheet, and the reference - * raminit code does not use it. Whether this is a fractional divisor, - * or an additional divisor is unknown, so don't use it for now */ - reg32 &= ~PLL5_FACTOR_M1_MASK; - reg32 |= (PLL5_FACTOR_M(div_m) | PLL5_FACTOR_N(mul_n) | - PLL5_FACTOR_K(mul_k) | PLL5_DIV_EXP_P(exp_div_p)); - reg32 |= PLL5_PLL_ENABLE; - write32(&ccm->pll5_cfg, reg32); -} - -/** - * \brief Enable the clock output to DRAM chips - * - * This enables the DRAM clock to be sent to DRAM chips. This should normally be - * done after PLL5 is configured and locked. Note that the clock may be gated, - * and also needs to be ungated in order to reach the DDR chips. - * Also see @ref clock_ungate_dram_clk_output - */ -void a1x_pll5_enable_dram_clock_output(void) -{ - setbits_le32(&ccm->pll5_cfg, PLL5_DDR_CLK_OUT_EN); -} - -/** - * \brief Ungate the clock to DRAM chips - * - * Although the DRAM clock output may be enabled, it is by default gated. It - * needs to be ungated before reaching DRAM. - */ -void a1x_ungate_dram_clock_output(void) -{ - setbits_le32(&ccm->dram_clk_cfg, DRAM_CTRL_DCLK_OUT); -} - -/** - * \brief Gate the clock to DRAM chips - * - * Disable the clock to DRAM without altering PLL configuration, by closing the - * DRAM clock gate. - */ -void a1x_gate_dram_clock_output(void) -{ - clrbits_le32(&ccm->dram_clk_cfg, DRAM_CTRL_DCLK_OUT); -} - -/* - * Linker doesn't garbage collect and the function below adds about half - * kilobyte to the bootblock, and log2_ceil is not available in the bootblock. - */ -#ifndef __BOOTBLOCK__ - -#define PLL1_CFG(N, K, M, P_EXP) \ - ((1 << 31 | 0 << 30 | 8 << 26 | 0 << 25 | 16 << 20 | 2 << 13) | \ - (P_EXP) << 16 | (N) << 8 | \ - (K - 1) << 4 | 0 << 3 | 0 << 2 | (M -1) << 0) - -static const struct { - u32 pll1_cfg; - u16 freq_mhz; -} pll1_table[] = { - /* PLL1 output = (24MHz * N * K) / (M * P) */ - { PLL1_CFG(16, 1, 1, 0), 384 }, - { PLL1_CFG(16, 2, 1, 0), 768 }, - { PLL1_CFG(20, 2, 1, 0), 960 }, - { PLL1_CFG(21, 2, 1, 0), 1008 }, - { PLL1_CFG(22, 2, 1, 0), 1056 }, - { PLL1_CFG(23, 2, 1, 0), 1104 }, - { PLL1_CFG(24, 2, 1, 0), 1152 }, - { PLL1_CFG(25, 2, 1, 0), 1200 }, - { PLL1_CFG(26, 2, 1, 0), 1248 }, - { PLL1_CFG(27, 2, 1, 0), 1296 }, - { PLL1_CFG(28, 2, 1, 0), 1344 }, - { PLL1_CFG(29, 2, 1, 0), 1392 }, - { PLL1_CFG(30, 2, 1, 0), 1440 }, - { PLL1_CFG(31, 2, 1, 0), 1488 }, - { PLL1_CFG(20, 4, 1, 0), 1944 }, -}; - -static void cpu_clk_src_switch(u32 clksel_bits) -{ - u32 reg32; - - reg32 = read32(&ccm->cpu_ahb_apb0_cfg); - reg32 &= ~CPU_CLK_SRC_MASK; - reg32 |= clksel_bits & CPU_CLK_SRC_MASK; - write32(&ccm->cpu_ahb_apb0_cfg, reg32); -} - -static void change_sys_divisors(u8 axi, u8 ahb_exp, u8 apb0_exp) -{ - u32 reg32; - - reg32 = read32(&ccm->cpu_ahb_apb0_cfg); - /* Not a typo: We want to keep only the CLK_SRC bits */ - reg32 &= CPU_CLK_SRC_MASK; - reg32 |= ((axi - 1) << 0) & AXI_DIV_MASK; - reg32 |= (ahb_exp << 4) & AHB_DIV_MASK; - reg32 |= (apb0_exp << 8) & APB0_DIV_MASK; - write32(&ccm->cpu_ahb_apb0_cfg, reg32); -} - -static void spin_delay(u32 loops) -{ - volatile u32 x = loops; - while (x--); -} - -/** - * \brief Configure the CPU clock and PLL1 - * - * To run at full speed, the CPU uses PLL1 as the clock source. AXI, AHB, and - * APB0 are derived from the CPU clock, and need to be kept within certain - * limits. This function configures PLL1 as close as possible to the desired - * frequency, based on a set of known working configurations for PLL1. It then - * calculates and applies the appropriate divisors for the AXI/AHB/APB0 clocks, - * before finally switching the CPU to run from the new clock. - * No further configuration of the CPU clock or divisors is needed. after - * calling this function. - * - * @param[in] cpu_clk_mhz Desired CPU clock, in MHz - */ -void a1x_set_cpu_clock(u16 cpu_clk_mhz) -{ - int i = 0; - u8 axi, ahb, ahb_exp, apb0, apb0_exp; - u32 actual_mhz; - - /* - * Rated clock for PLL1 is 2000 MHz, but there is no combination of - * parameters that yields that exact frequency. 1944 MHz is the highest. - */ - if (cpu_clk_mhz > 1944) { - printk(BIOS_CRIT, "BUG! maximum PLL1 clock is 1944 MHz," - "but asked to clock CPU at %d MHz\n", - cpu_clk_mhz); - cpu_clk_mhz = 1944; - } - /* Find target frequency */ - while (pll1_table[i].freq_mhz < cpu_clk_mhz) - i++; - - actual_mhz = pll1_table[i].freq_mhz; - - if (cpu_clk_mhz != actual_mhz) { - printk(BIOS_WARNING, "Parameters for %d MHz not available, " - "setting CPU clock at %d MHz\n", - cpu_clk_mhz, actual_mhz); - } - - /* - * Calculate system clock divisors: - * The minimum clock divisor for APB0 is 2, which guarantees that AHB0 - * will always be in spec, as long as AHB is in spec, although the max - * AHB0 clock we can get is 125 MHz - */ - axi = DIV_ROUND_UP(actual_mhz, 450); /* Max 450 MHz */ - ahb = DIV_ROUND_UP(actual_mhz/axi, 250); /* Max 250 MHz */ - apb0 = 2; /* Max 150 MHz */ - - ahb_exp = log2_ceil(ahb); - ahb = 1 << ahb_exp; - apb0_exp = 1; - - printk(BIOS_INFO, "CPU: %d MHz, AXI %d Mhz, AHB: %d MHz APB0: %d MHz\n", - actual_mhz, - actual_mhz / axi, - actual_mhz / (axi * ahb), - actual_mhz / (axi * ahb * apb0)); - - /* Keep the CPU off PLL1 while we change PLL parameters */ - cpu_clk_src_switch(CPU_CLK_SRC_OSC24M); - /* - * We can't use udelay() here. udelay() relies on timer 0, but timers - * have the habit of not ticking when the CPU is clocked from the main - * oscillator. - */ - spin_delay(8); - - change_sys_divisors(axi, ahb_exp, apb0_exp); - - /* Configure PLL1 at the desired frequency */ - write32(&ccm->pll1_cfg, pll1_table[i].pll1_cfg); - spin_delay(8); - - cpu_clk_src_switch(CPU_CLK_SRC_PLL1); - /* Here, we're running from PLL, so timers will tick */ - udelay(1); -} - -#endif /* __BOOTBLOCK__ */ diff --git a/src/cpu/allwinner/a10/clock.h b/src/cpu/allwinner/a10/clock.h deleted file mode 100644 index 110a6f8..0000000 --- a/src/cpu/allwinner/a10/clock.h +++ /dev/null @@ -1,283 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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. or (at your option) - * any later version. - * - * 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. - * - * Definitions for clock control and gating on Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_CLOCK_H -#define CPU_ALLWINNER_A10_CLOCK_H - -#include "memmap.h" -#include <types.h> - -/* CPU_AHB_APB0 config values */ -#define CPU_CLK_SRC_MASK (3 << 16) -#define CPU_CLK_SRC_OSC24M (1 << 16) -#define CPU_CLK_SRC_PLL1 (2 << 16) -#define APB0_DIV_MASK (3 << 8) -#define APB0_DIV_1 (0 << 8) -#define APB0_DIV_2 (1 << 8) -#define APB0_DIV_4 (2 << 8) -#define APB0_DIV_8 (3 << 8) -#define AHB_DIV_MASK (3 << 4) -#define AHB_DIV_1 (0 << 4) -#define AHB_DIV_2 (1 << 4) -#define AHB_DIV_4 (2 << 4) -#define AHB_DIV_8 (3 << 4) -#define AXI_DIV_MASK (3 << 0) -#define AXI_DIV_1 (0 << 0) -#define AXI_DIV_2 (1 << 0) -#define AXI_DIV_3 (2 << 0) -#define AXI_DIV_4 (3 << 0) - -/* APB1_CLK_DIV values */ -#define APB1_CLK_SRC_MASK (3 << 24) -#define APB1_CLK_SRC_OSC24M (0 << 24) -#define APB1_CLK_SRC_PLL6 (1 << 24) -#define APB1_CLK_SRC_32K (2 << 24) -#define APB1_RAT_N_MASK (3 << 16) -#define APB1_RAT_N(m) (((m) & 0x3) << 16) -#define APB1_RAT_M_MASK (0x1f << 0) -#define APB1_RAT_M(n) (((n) & 0x1f) << 0) - -/* PLL5_CFG values */ -#define PLL5_PLL_ENABLE (1 << 31) -#define PLL5_OUT_BYPASS_EN (1 << 30) -#define PLL5_DDR_CLK_OUT_EN (1 << 29) -#define PLL5_DIV_EXP_P_MASK (0x3 << 16) -#define PLL5_DIV_EXP_P(ep) ((ep << 16) & PLL5_DIV_EXP_P_MASK) -#define PLL5_DIV_P_1 (0x0 << 16) -#define PLL5_DIV_P_2 (0x1 << 16) -#define PLL5_DIV_P_4 (0x2 << 16) -#define PLL5_DIV_P_8 (0x3 << 16) -#define PLL5_FACTOR_N_MASK (0x1f << 8) -#define PLL5_FACTOR_N(n) ((n << 8) & PLL5_FACTOR_N_MASK) -#define PLL5_LDO_EN (1 << 7) -#define PLL5_FACTOR_K_MASK (0x3 << 4) -#define PLL5_FACTOR_K(k) ((((k) - 1) << 4) & PLL5_FACTOR_K_MASK) -#define PLL5_FACTOR_M1_MASK (0x3 << 2) -#define PLL5_FACTOR_M1(m1) (((m1) << 2) & PLL5_FACTOR_M1_MASK) -#define PLL5_FACTOR_M_MASK (0x3 << 0) -#define PLL5_FACTOR_M(m) ((((m) - 1) << 0) & PLL5_FACTOR_M_MASK) - -/* DRAM_CLK values*/ -#define DRAM_CTRL_DCLK_OUT (1 << 15) - -/* SDx_CLK values */ -#define SDx_CLK_GATE (1 << 31) -#define SDx_CLK_SRC_MASK (3 << 24) -#define SDx_CLK_SRC_OSC24M (0 << 24) -#define SDx_CLK_SRC_PLL6 (1 << 24) -#define SDx_CLK_SRC_PLL5 (2 << 24) -#define SDx_RAT_EXP_N_MASK (3 << 16) -#define SDx_RAT_EXP_N(n) (((n) << 16) & SDx_RAT_EXP_N_MASK) -#define SDx_RAT_M_MASK (0xf << 0) -#define SDx_RAT_M(m) ((((m) - 1) << 0) & SDx_RAT_M_MASK) -/** - * \brief Clock gating definitions - * - * The definitions are specified in the form: - * 31:5 register offset from A1X_CCM_BASE for the clock register - * 4:0 bit offset for the given peripheral - * - * The names have the form [periph_type][periph_number] - * - * These definitions are meant to be used with @ref a1x_periph_clock_enable and - * @ref a1x_periph_clock_disable - */ - -enum a1x_clken { - /* AXI module clock gating */ - A1X_CLKEN_DRAM_AXI = (0x5C << 5), - /* AHB0 module clock gating */ - A1X_CLKEN_USB0 = (0x60 << 5), - A1X_CLKEN_EHCI0, - RSVD_0x60_2, - A1X_CLKEN_EHCI1, - RSVD_0x60_4, - A1X_CLKEN_SS, - A1X_CLKEN_DMA, - A1X_CLKEN_BIST, - A1X_CLKEN_MMC0, - A1X_CLKEN_MMC1, - A1X_CLKEN_MMC2, - A1X_CLKEN_MMC3, - A1X_CLKEN_NC, - A1X_CLKEN_NAND, - A1X_CLKEN_SDRAM, - RSVD_0x60_15, - A1X_CLKEN_ACE, - A1X_CLKEN_EMAC, - A1X_CLKEN_TS, - RSVD_0x60_19, - A1X_CLKEN_SPI0, - A1X_CLKEN_SPI1, - A1X_CLKEN_SPI2, - A1X_CLKEN_SPI3, - A1X_CLKEN_PATA, - RSVD_0x60_25, - A1X_CLKEN_GPS, - /* AHB1 module clock gating */ - A1X_CLKEN_DRAM_VE = (0x64 << 5), - A1X_CLKEN_TVD, - A1X_CLKEN_TVE0, - A1X_CLKEN_TVE1, - A1X_CLKEN_LCD0, - A1X_CLKEN_LCD1, - RSVD_0x64_6, - RSVD_0x64_7, - A1X_CLKEN_CSI0, - A1X_CLKEN_CSI1, - RSVD_0x64_10, - A1X_CLKEN_HDMI, - A1X_CLKEN_DE_BE0, - A1X_CLKEN_DE_BE1, - A1X_CLKEN_DE_FE0, - A1X_CLKEN_DE_FE1, - RSVD_0x64_16, - RSVD_0x64_17, - A1X_CLKEN_MP, - RSVD_0x64_19, - A1X_CLKEN_MALI400, - /* APB0 module clock gating */ - A1X_CLKEN_CODEC = (0x68 << 5), - A1X_CLKEN_NC_APB, - A1X_CLKEN_AC97, - A1X_CLKEN_IIS, - RSVD_0x68_4, - A1X_CLKEN_PIO, - A1X_CLKEN_IR0, - A1X_CLKEN_IR1, - RSVD_0x68_8, - RSVD_0x68_9, - A1X_CLKEN_KEYPAD, - /* APB1 module clock gating */ - A1X_CLKEN_TWI0 = (0x6C << 5), - A1X_CLKEN_TWI1, - A1X_CLKEN_TWI2, - RSVD_0x6C_3, - A1X_CLKEN_CAN, - A1X_CLKEN_SCR, - A1X_CLKEN_PS20, - A1X_CLKEN_PS21, - RSVD_0x6C_8, - RSVD_0x6C_9, - RSVD_0x6C_10, - RSVD_0x6C_11, - RSVD_0x6C_12, - RSVD_0x6C_13, - RSVD_0x6C_14, - RSVD_0x6C_15, - A1X_CLKEN_UART0, - A1X_CLKEN_UART1, - A1X_CLKEN_UART2, - A1X_CLKEN_UART3, - A1X_CLKEN_UART4, - A1X_CLKEN_UART5, - A1X_CLKEN_UART6, - A1X_CLKEN_UART7, -}; - -struct a10_ccm { - u32 pll1_cfg; /* 0x00 pll1 control */ - u32 pll1_tun; /* 0x04 pll1 tuning */ - u32 pll2_cfg; /* 0x08 pll2 control */ - u32 pll2_tun; /* 0x0c pll2 tuning */ - u32 pll3_cfg; /* 0x10 pll3 control */ - u8 res0[0x4]; - u32 pll4_cfg; /* 0x18 pll4 control */ - u8 res1[0x4]; - u32 pll5_cfg; /* 0x20 pll5 control */ - u32 pll5_tun; /* 0x24 pll5 tuning */ - u32 pll6_cfg; /* 0x28 pll6 control */ - u32 pll6_tun; /* 0x2c pll6 tuning */ - u32 pll7_cfg; /* 0x30 pll7 control */ - u32 pll1_tun2; /* 0x34 pll5 tuning2 */ - u8 res2[0x4]; - u32 pll5_tun2; /* 0x3c pll5 tuning2 */ - u8 res3[0xc]; - u32 pll_lock_dbg; /* 0x4c pll lock time debug */ - u32 osc24m_cfg; /* 0x50 osc24m control */ - u32 cpu_ahb_apb0_cfg; /* 0x54 CPU, ahb and apb0 divide ratio */ - u32 apb1_clk_div_cfg; /* 0x58 apb1 clock dividor */ - u32 axi_gate; /* 0x5c axi module clock gating */ - u32 ahb_gate0; /* 0x60 ahb module clock gating 0 */ - u32 ahb_gate1; /* 0x64 ahb module clock gating 1 */ - u32 apb0_gate; /* 0x68 apb0 module clock gating */ - u32 apb1_gate; /* 0x6c apb1 module clock gating */ - u8 res4[0x10]; - u32 nand_sclk_cfg; /* 0x80 nand sub clock control */ - u32 ms_sclk_cfg; /* 0x84 memory stick sub clock control */ - u32 sd0_clk_cfg; /* 0x88 sd0 clock control */ - u32 sd1_clk_cfg; /* 0x8c sd1 clock control */ - u32 sd2_clk_cfg; /* 0x90 sd2 clock control */ - u32 sd3_clk_cfg; /* 0x94 sd3 clock control */ - u32 ts_clk_cfg; /* 0x98 transport stream clock control */ - u32 ss_clk_cfg; /* 0x9c */ - u32 spi0_clk_cfg; /* 0xa0 */ - u32 spi1_clk_cfg; /* 0xa4 */ - u32 spi2_clk_cfg; /* 0xa8 */ - u32 pata_clk_cfg; /* 0xac */ - u32 ir0_clk_cfg; /* 0xb0 */ - u32 ir1_clk_cfg; /* 0xb4 */ - u32 iis_clk_cfg; /* 0xb8 */ - u32 ac97_clk_cfg; /* 0xbc */ - u32 spdif_clk_cfg; /* 0xc0 */ - u32 keypad_clk_cfg; /* 0xc4 */ - u32 sata_clk_cfg; /* 0xc8 */ - u32 usb_clk_cfg; /* 0xcc */ - u32 gps_clk_cfg; /* 0xd0 */ - u32 spi3_clk_cfg; /* 0xd4 */ - u8 res5[0x28]; - u32 dram_clk_cfg; /* 0x100 */ - u32 be0_clk_cfg; /* 0x104 */ - u32 be1_clk_cfg; /* 0x108 */ - u32 fe0_clk_cfg; /* 0x10c */ - u32 fe1_clk_cfg; /* 0x110 */ - u32 mp_clk_cfg; /* 0x114 */ - u32 lcd0_ch0_clk_cfg; /* 0x118 */ - u32 lcd1_ch0_clk_cfg; /* 0x11c */ - u32 csi_isp_clk_cfg; /* 0x120 */ - u8 res6[0x4]; - u32 tvd_clk_reg; /* 0x128 */ - u32 lcd0_ch1_clk_cfg; /* 0x12c */ - u32 lcd1_ch1_clk_cfg; /* 0x130 */ - u32 csi0_clk_cfg; /* 0x134 */ - u32 csi1_clk_cfg; /* 0x138 */ - u32 ve_clk_cfg; /* 0x13c */ - u32 audio_codec_clk_cfg; /* 0x140 */ - u32 avs_clk_cfg; /* 0x144 */ - u32 ace_clk_cfg; /* 0x148 */ - u32 lvds_clk_cfg; /* 0x14c */ - u32 hdmi_clk_cfg; /* 0x150 */ - u32 mali_clk_cfg; /* 0x154 */ - u8 res7[0x4]; - u32 mbus_clk_cfg; /* 0x15c */ -} __packed; - -void a1x_periph_clock_enable(enum a1x_clken periph); -void a1x_periph_clock_disable(enum a1x_clken periph); - -void a1x_pll5_configure(u8 mul_n, u8 mul_k, u8 div_m, u8 exp_div_p); -void a1x_pll5_enable_dram_clock_output(void); -void a1x_ungate_dram_clock_output(void); -void a1x_gate_dram_clock_output(void); - -/* Not available in bootblock */ -void a1x_set_cpu_clock(u16 cpu_clk_mhz); - -#endif /* CPU_ALLWINNER_A10_CLOCK_H */ diff --git a/src/cpu/allwinner/a10/cpu.c b/src/cpu/allwinner/a10/cpu.c deleted file mode 100644 index 09f6766..0000000 --- a/src/cpu/allwinner/a10/cpu.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Ramstage initialization for Allwinner CPUs - * - */ - -#include <device/device.h> -#include <symbols.h> - -static void cpu_enable_resources(struct device *dev) -{ - ram_resource(dev, 0, (uintptr_t)_dram/KiB, - CONFIG_DRAM_SIZE_MB << 10); - /* TODO: Declare CBFS cache as reserved? There's no guarantee we won't - * overwrite it. It seems to stay intact, being so high in RAM - */ -} - -static void cpu_init(struct device *dev) -{ - /* TODO: Check if anything else needs to be explicitly initialized */ -} - -static struct device_operations cpu_ops = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = cpu_enable_resources, - .init = cpu_init, - .scan_bus = NULL, -}; - -static void a1x_cpu_enable_dev(struct device *dev) -{ - dev->ops = &cpu_ops; -} - -struct chip_operations cpu_allwinner_a10_ops = { - CHIP_NAME("CPU Allwinner A10") - .enable_dev = a1x_cpu_enable_dev, -}; diff --git a/src/cpu/allwinner/a10/dramc.h b/src/cpu/allwinner/a10/dramc.h deleted file mode 100644 index fe50acd..0000000 --- a/src/cpu/allwinner/a10/dramc.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2012 Allwinner Technology Co., Ltd. - * Berg Xing bergxing@allwinnertech.com - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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.or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 platform dram register definition. - * - * Based on sun4i Linux kernel sources mach-sunxi/pm/standby/dram*.c - * and earlier U-Boot Allwiner A10 SPL work - */ - -#ifndef CPU_ALLWINNER_A10_DRAMC_H -#define CPU_ALLWINNER_A10_DRAMC_H - -#include <types.h> - -#define DRAM_CCR_COMMAND_RATE_1T (0x1 << 5) -#define DRAM_CCR_DQS_GATE (0x1 << 14) -#define DRAM_CCR_DQS_DRIFT_COMP (0x1 << 17) -#define DRAM_CCR_ITM_OFF (0x1 << 28) -#define DRAM_CCR_DATA_TRAINING (0x1 << 30) -#define DRAM_CCR_INIT (0x1 << 31) - -#define DRAM_MEMORY_TYPE_DDR1 1 -#define DRAM_MEMORY_TYPE_DDR2 2 -#define DRAM_MEMORY_TYPE_DDR3 3 -#define DRAM_MEMORY_TYPE_LPDDR2 4 -#define DRAM_MEMORY_TYPE_LPDDR 5 -#define DRAM_DCR_TYPE (0x1 << 0) -#define DRAM_DCR_TYPE_DDR2 0x0 -#define DRAM_DCR_TYPE_DDR3 0x1 -#define DRAM_DCR_IO_WIDTH(n) (((n) & 0x3) << 1) -#define DRAM_DCR_IO_WIDTH_MASK DRAM_DCR_IO_WIDTH(0x3) -#define DRAM_DCR_IO_WIDTH_8BIT 0x0 -#define DRAM_DCR_IO_WIDTH_16BIT 0x1 -#define DRAM_DCR_CHIP_DENSITY(n) (((n) & 0x7) << 3) -#define DRAM_DCR_CHIP_DENSITY_MASK DRAM_DCR_CHIP_DENSITY(0x7) -#define DRAM_DCR_CHIP_DENSITY_256M 0x0 -#define DRAM_DCR_CHIP_DENSITY_512M 0x1 -#define DRAM_DCR_CHIP_DENSITY_1024M 0x2 -#define DRAM_DCR_CHIP_DENSITY_2048M 0x3 -#define DRAM_DCR_CHIP_DENSITY_4096M 0x4 -#define DRAM_DCR_CHIP_DENSITY_8192M 0x5 -#define DRAM_DCR_BUS_WIDTH(n) (((n) & 0x7) << 6) -#define DRAM_DCR_BUS_WIDTH_MASK DRAM_DCR_BUS_WIDTH(0x7) -#define DRAM_DCR_BUS_WIDTH_32BIT 0x3 -#define DRAM_DCR_BUS_WIDTH_16BIT 0x1 -#define DRAM_DCR_BUS_WIDTH_8BIT 0x0 -#define DRAM_DCR_NR_DLLCR_32BIT 5 -#define DRAM_DCR_NR_DLLCR_16BIT 3 -#define DRAM_DCR_NR_DLLCR_8BIT 2 -#define DRAM_DCR_RANK_SEL(n) (((n) & 0x3) << 10) -#define DRAM_DCR_RANK_SEL_MASK DRAM_DCR_CMD_RANK(0x3) -#define DRAM_DCR_CMD_RANK_ALL (0x1 << 12) -#define DRAM_DCR_MODE(n) (((n) & 0x3) << 13) -#define DRAM_DCR_MODE_MASK DRAM_DCR_MODE(0x3) -#define DRAM_DCR_MODE_SEQ 0x0 -#define DRAM_DCR_MODE_INTERLEAVE 0x1 - -#define DRAM_CSR_FAILED (0x1 << 20) - -#define DRAM_MCR_MODE_NORM(n) (((n) & 0x3) << 0) -#define DRAM_MCR_MODE_NORM_MASK DRAM_MCR_MOD_NORM(0x3) -#define DRAM_MCR_MODE_DQ_OUT(n) (((n) & 0x3) << 2) -#define DRAM_MCR_MODE_DQ_OUT_MASK DRAM_MCR_MODE_DQ_OUT(0x3) -#define DRAM_MCR_MODE_ADDR_OUT(n) (((n) & 0x3) << 4) -#define DRAM_MCR_MODE_ADDR_OUT_MASK DRAM_MCR_MODE_ADDR_OUT(0x3) -#define DRAM_MCR_MODE_DQ_IN_OUT(n) (((n) & 0x3) << 6) -#define DRAM_MCR_MODE_DQ_IN_OUT_MASK DRAM_MCR_MODE_DQ_IN_OUT(0x3) -#define DRAM_MCR_MODE_DQ_TURNON_DELAY(n) (((n) & 0x7) << 8) -#define DRAM_MCR_MODE_DQ_TURNON_DELAY_MASK DRAM_MCR_MODE_DQ_TURNON_DELAY(0x7) -#define DRAM_MCR_MODE_ADDR_IN (0x1 << 11) -#define DRAM_MCR_RESET (0x1 << 12) -#define DRAM_MCR_MODE_EN(n) (((n) & 0x3) << 13) -#define DRAM_MCR_MODE_EN_MASK DRAM_MCR_MOD_EN(0x3) -#define DRAM_MCR_DCLK_OUT (0x1 << 16) - -#define DRAM_DLLCR_NRESET (0x1 << 30) -#define DRAM_DLLCR_DISABLE (0x1 << 31) - -#define DRAM_ZQCR0_IMP_DIV(n) (((n) & 0xff) << 20) -#define DRAM_ZQCR0_IMP_DIV_MASK DRAM_ZQCR0_IMP_DIV(0xff) - -#define DRAM_IOCR_ODT_EN(n) ((((n) & 0x3) << 30) | ((n) & 0x3) << 0) -#define DRAM_IOCR_ODT_EN_MASK DRAM_IOCR_ODT_EN(0x3) - -#define DRAM_MR_BURST_LENGTH(n) (((n) & 0x7) << 0) -#define DRAM_MR_BURST_LENGTH_MASK DRAM_MR_BURST_LENGTH(0x7) -#define DRAM_MR_CAS_LAT(n) (((n) & 0x7) << 4) -#define DRAM_MR_CAS_LAT_MASK DRAM_MR_CAS_LAT(0x7) -#define DRAM_MR_WRITE_RECOVERY(n) (((n) & 0x7) << 9) -#define DRAM_MR_WRITE_RECOVERY_MASK DRAM_MR_WRITE_RECOVERY(0x7) -#define DRAM_MR_POWER_DOWN (0x1 << 12) - -#define DRAM_CSEL_MAGIC 0x16237495 - -struct a1x_dramc { - u32 ccr; /* 0x00 controller configuration register */ - u32 dcr; /* 0x04 dram configuration register */ - u32 iocr; /* 0x08 i/o configuration register */ - u32 csr; /* 0x0c controller status register */ - u32 drr; /* 0x10 dram refresh register */ - u32 tpr0; /* 0x14 dram timing parameters register 0 */ - u32 tpr1; /* 0x18 dram timing parameters register 1 */ - u32 tpr2; /* 0x1c dram timing parameters register 2 */ - u32 gdllcr; /* 0x20 global dll control register */ - u8 res0[0x28]; - u32 rslr0; /* 0x4c rank system latency register */ - u32 rslr1; /* 0x50 rank system latency register */ - u8 res1[0x8]; - u32 rdgr0; /* 0x5c rank dqs gating register */ - u32 rdgr1; /* 0x60 rank dqs gating register */ - u8 res2[0x34]; - u32 odtcr; /* 0x98 odt configuration register */ - u32 dtr0; /* 0x9c data training register 0 */ - u32 dtr1; /* 0xa0 data training register 1 */ - u32 dtar; /* 0xa4 data training address register */ - u32 zqcr0; /* 0xa8 zq control register 0 */ - u32 zqcr1; /* 0xac zq control register 1 */ - u32 zqsr; /* 0xb0 zq status register */ - u32 idcr; /* 0xb4 initializaton delay configure reg */ - u8 res3[0x138]; - u32 mr; /* 0x1f0 mode register */ - u32 emr; /* 0x1f4 extended mode register */ - u32 emr2; /* 0x1f8 extended mode register */ - u32 emr3; /* 0x1fc extended mode register */ - u32 dllctr; /* 0x200 dll control register */ - u32 dllcr[5]; /* 0x204 dll control register 0(byte 0) */ - /* 0x208 dll control register 1(byte 1) */ - /* 0x20c dll control register 2(byte 2) */ - /* 0x210 dll control register 3(byte 3) */ - /* 0x214 dll control register 4(byte 4) */ - u32 dqtr0; /* 0x218 dq timing register */ - u32 dqtr1; /* 0x21c dq timing register */ - u32 dqtr2; /* 0x220 dq timing register */ - u32 dqtr3; /* 0x224 dq timing register */ - u32 dqstr; /* 0x228 dqs timing register */ - u32 dqsbtr; /* 0x22c dqsb timing register */ - u32 mcr; /* 0x230 mode configure register */ - u8 res[0x8]; - u32 ppwrsctl; /* 0x23c pad power save control */ - u32 apr; /* 0x240 arbiter period register */ - u32 pldtr; /* 0x244 priority level data threshold reg */ - u8 res5[0x8]; - u32 hpcr[32]; /* 0x250 host port configure register */ - u8 res6[0x10]; - u32 csel; /* 0x2e0 controller select register */ -}; - -struct dram_para { - u32 clock; - u32 type; - u32 rank_num; - u32 density; - u32 io_width; - u32 bus_width; - u32 cas; - u32 zq; - u32 odt_en; - u32 size; - u32 tpr0; - u32 tpr1; - u32 tpr2; - u32 tpr3; - u32 tpr4; - u32 tpr5; - u32 emr1; - u32 emr2; - u32 emr3; -}; - -unsigned long dramc_init(struct dram_para *para); - -#endif /* CPU_ALLWINNER_A10_DRAMC_H */ diff --git a/src/cpu/allwinner/a10/gpio.c b/src/cpu/allwinner/a10/gpio.c deleted file mode 100644 index 7f6bbd8..0000000 --- a/src/cpu/allwinner/a10/gpio.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Basic GPIO helpers for Allwinner CPUs - */ - -#include "gpio.h" - -#include <device/mmio.h> - -static struct a10_gpio *const gpio = (void *)GPIO_BASE; - -/** - * \brief Set a single output pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - */ -void gpio_set(u8 port, u8 pin) -{ - u32 reg32; - - if ((port > GPS)) - return; - - reg32 = gpio_read(port); - reg32 |= (1 << pin); - gpio_write(port, reg32); -} - -/** - * \brief Clear a single output pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - */ -void gpio_clear(u8 port, u8 pin) -{ - u32 reg32; - if ((port > GPS)) - return; - - reg32 = gpio_read(port); - reg32 &= ~(1 << pin); - gpio_write(port, reg32); -} - -/** - * \brief Get the status of a single input pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - * @return 1 if the pin is high, or 0 if the pin is low - */ -int gpio_get(u8 port, u8 pin) -{ - if ((port > GPS)) - return 0; - - return (gpio_read(port) & (1 << pin)) ? 1 : 0; -} - -/** - * \brief Write to a GPIO port - * - * Write the state of all output pins in the GPIO port. This only affects pins - * configured as output pins. - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] val 32-bit mask indicating which pins to set. For a set bit, the - * corresponding pin will be set. Otherwise, it will be cleared - */ -void gpio_write(u8 port, u32 val) -{ - if ((port > GPS)) - return; - - write32(&gpio->port[port].dat, val); -} - -/** - * \brief Write to a GPIO port - * - * Read the state of all input pins in the GPIO port. - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @return 32-bit mask indicating which pins are high. For each set bit, the - * corresponding pin is high. The value of bits corresponding to pins - * which are not configured as inputs is undefined. - */ -u32 gpio_read(u8 port) -{ - if ((port > GPS)) - return 0; - - return read32(&gpio->port[port].dat); -} diff --git a/src/cpu/allwinner/a10/gpio.h b/src/cpu/allwinner/a10/gpio.h deleted file mode 100644 index c05122f..0000000 --- a/src/cpu/allwinner/a10/gpio.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions for GPIO and pin multiplexing on Allwinner CPUs - */ - -#ifndef __CPU_ALLWINNER_A10_PINMUX_H -#define __CPU_ALLWINNER_A10_PINMUX_H - -#include <types.h> - -#define GPIO_BASE 0x01C20800 - -#define GPA 0 -#define GPB 1 -#define GPC 2 -#define GPD 3 -#define GPE 4 -#define GPF 5 -#define GPG 6 -#define GPH 7 -#define GPI 8 -#define GPS 9 - -/* GPIO pad functions valid for all pins */ -#define GPIO_PIN_FUNC_INPUT 0 -#define GPIO_PIN_FUNC_OUTPUT 1 - -struct a10_gpio_port { - u32 cfg[4]; - u32 dat; - u32 drv[2]; - u32 pul[2]; -} __packed; - -struct a10_gpio { - struct a10_gpio_port port[10]; - u8 reserved_0x168[0x98]; - - /* Offset 0x200 */ - u32 int_cfg[4]; - - u32 int_ctl; - u32 int_sta; - u8 reserved_0x21C[4]; - u32 int_deb; - - u32 sdr_pad_drv; - u32 sdr_pad_pul; -} __packed; - -/* gpio.c */ -void gpio_set(u8 port, u8 pin); -void gpio_clear(u8 port, u8 pin); -int gpio_get(u8 port, u8 pin); -void gpio_write(u8 port, u32 val); -u32 gpio_read(u8 port); - -/* pinmux.c */ -void gpio_set_pin_func(u8 port, u8 pin, u8 pad_func); -void gpio_set_multipin_func(u8 port, u32 pin_mask, u8 pad_func); - -#endif /* __CPU_ALLWINNER_A10_PINMUX_H */ diff --git a/src/cpu/allwinner/a10/memmap.h b/src/cpu/allwinner/a10/memmap.h deleted file mode 100644 index 2c02ec8..0000000 --- a/src/cpu/allwinner/a10/memmap.h +++ /dev/null @@ -1,128 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Memory map definitions for Allwinner A10 CPUs - */ - -#ifndef CPU_ALLWINNER_A10_MEMMAP_H -#define CPU_ALLWINNER_A10_MEMMAP_H - -#define A1X_SRAM_A1_BASE 0x00000000 -#define A1X_SRAM_A1_SIZE (16 * 1024) /* 16 kiB */ - -#define A1X_SRAM_A2_BASE 0x00004000 /* 16 kiB */ -#define A1X_SRAM_A3_BASE 0x00008000 /* 13 kiB */ -#define A1X_SRAM_A4_BASE 0x0000b400 /* 3 kiB */ -#define A1X_SRAM_D_BASE 0x01c00000 -#define A1X_SRAM_B_BASE 0x01c00000 /* 64 kiB (secure) */ - -#define A1X_SRAMC_BASE 0x01c00000 -#define A1X_DRAMC_BASE 0x01c01000 -#define A1X_DMA_BASE 0x01c02000 -#define A1X_NFC_BASE 0x01c03000 -#define A1X_TS_BASE 0x01c04000 -#define A1X_SPI0_BASE 0x01c05000 -#define A1X_SPI1_BASE 0x01c06000 -#define A1X_MS_BASE 0x01c07000 -#define A1X_TVD_BASE 0x01c08000 -#define A1X_CSI0_BASE 0x01c09000 -#define A1X_TVE0_BASE 0x01c0a000 -#define A1X_EMAC_BASE 0x01c0b000 -#define A1X_LCD0_BASE 0x01c0C000 -#define A1X_LCD1_BASE 0x01c0d000 -#define A1X_VE_BASE 0x01c0e000 -#define A1X_MMC0_BASE 0x01c0f000 -#define A1X_MMC1_BASE 0x01c10000 -#define A1X_MMC2_BASE 0x01c11000 -#define A1X_MMC3_BASE 0x01c12000 -#define A1X_USB0_BASE 0x01c13000 -#define A1X_USB1_BASE 0x01c14000 -#define A1X_SS_BASE 0x01c15000 -#define A1X_HDMI_BASE 0x01c16000 -#define A1X_SPI2_BASE 0x01c17000 -#define A1X_SATA_BASE 0x01c18000 -#define A1X_PATA_BASE 0x01c19000 -#define A1X_ACE_BASE 0x01c1a000 -#define A1X_TVE1_BASE 0x01c1b000 -#define A1X_USB2_BASE 0x01c1c000 -#define A1X_CSI1_BASE 0x01c1d000 -#define A1X_TZASC_BASE 0x01c1e000 -#define A1X_SPI3_BASE 0x01c1f000 - -#define A1X_CCM_BASE 0x01c20000 -#define A1X_INTC_BASE 0x01c20400 -#define A1X_PIO_BASE 0x01c20800 -#define A1X_TIMER_BASE 0x01c20c00 -#define A1X_SPDIF_BASE 0x01c21000 -#define A1X_AC97_BASE 0x01c21400 -#define A1X_IR0_BASE 0x01c21800 -#define A1X_IR1_BASE 0x01c21c00 - -#define A1X_IIS_BASE 0x01c22400 -#define A1X_LRADC_BASE 0x01c22800 -#define A1X_AD_DA_BASE 0x01c22c00 -#define A1X_KEYPAD_BASE 0x01c23000 -#define A1X_TZPC_BASE 0x01c23400 -#define A1X_SID_BASE 0x01c23800 -#define A1X_SJTAG_BASE 0x01c23c00 - -#define A1X_TP_BASE 0x01c25000 -#define A1X_PMU_BASE 0x01c25400 -#define A1X_CPUCFG_BASE 0x01c25c00 /* sun7i only ? */ - -#define A1X_UART0_BASE 0x01c28000 -#define A1X_UART1_BASE 0x01c28400 -#define A1X_UART2_BASE 0x01c28800 -#define A1X_UART3_BASE 0x01c28c00 -#define A1X_UART4_BASE 0x01c29000 -#define A1X_UART5_BASE 0x01c29400 -#define A1X_UART6_BASE 0x01c29800 -#define A1X_UART7_BASE 0x01c29c00 -#define A1X_PS2_0_BASE 0x01c2a000 -#define A1X_PS2_1_BASE 0x01c2a400 - -#define A1X_TWI0_BASE 0x01c2ac00 -#define A1X_TWI1_BASE 0x01c2b000 -#define A1X_TWI2_BASE 0x01c2b400 - -#define A1X_CAN_BASE 0x01c2bc00 - -#define A1X_SCR_BASE 0x01c2c400 - -#define A1X_GPS_BASE 0x01c30000 -#define A1X_MALI400_BASE 0x01c40000 - -/* module sram */ -#define A1X_SRAM_C_BASE 0x01d00000 - -#define A1X_DE_FE0_BASE 0x01e00000 -#define A1X_DE_FE1_BASE 0x01e20000 -#define A1X_DE_BE0_BASE 0x01e60000 -#define A1X_DE_BE1_BASE 0x01e40000 -#define A1X_MP_BASE 0x01e80000 -#define A1X_AVG_BASE 0x01ea0000 - -/* CoreSight Debug Module */ -#define A1X_CSDM_BASE 0x3f500000 - -#define A1X_DRAM_BASE 0x40000000 /* 2 GiB */ - -#define A1X_BROM_BASE 0xffff0000 /* 32 kiB */ - -#define A1X_CPU_CFG (A1X_TIMER_BASE + 0x13c) - -#endif /* CPU_ALLWINNER_A10_MEMMAP_H */ diff --git a/src/cpu/allwinner/a10/monotonic_timer.c b/src/cpu/allwinner/a10/monotonic_timer.c deleted file mode 100644 index 479dee9..0000000 --- a/src/cpu/allwinner/a10/monotonic_timer.c +++ /dev/null @@ -1,25 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 Licenseor (at your option) - * any later version. - * - * 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. - * - * Placeholder for code to come (needed to complete build) - * - */ - -#include <timer.h> - -void timer_monotonic_get(struct mono_time *mt) -{ - (void)mt; -} diff --git a/src/cpu/allwinner/a10/pinmux.c b/src/cpu/allwinner/a10/pinmux.c deleted file mode 100644 index 3415e4f..0000000 --- a/src/cpu/allwinner/a10/pinmux.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * - * Helpers to multiplex and configure pins on Allwinner SoCs - * - */ - -#include "gpio.h" - -#include <device/mmio.h> - -static struct a10_gpio *const gpio = (void *)GPIO_BASE; - -/** - * \brief Set the pad function of a single pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - * @param[in] pad_func The peripheral function to which to connect this pin - */ -void gpio_set_pin_func(u8 port, u8 pin, u8 pad_func) -{ - u8 reg, bit; - u32 reg32; - - if ((port > GPS)) - return; - - pin &= 0x1f; - reg = pin / 8; - bit = (pin % 8) * 4; - - reg32 = read32(&gpio->port[port].cfg[reg]); - reg32 &= ~(0xf << bit); - reg32 |= (pad_func & 0xf) << bit; - write32(&gpio->port[port].cfg[reg], reg32); -} - -/** - * \brief Set the pad function of a group of pins - * - * Multiplex a group of pins to the same pad function. This is useful for - * peripherals that use the same function number for several pins. This function - * allows those pins to be set with a single call. - * - * Example: - * gpio_set_multipin_func(GPB, (1 << 23) | (1 << 22), 2); - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin_mask 32-bit mask indicating which pins to re-multiplex. For - * each set bit, the corresponding pin will be multiplexed. - * @param[in] pad_func The peripheral function to which to connect the pins - */ -void gpio_set_multipin_func(u8 port, u32 pin_mask, u8 pad_func) -{ - int j; - u8 reg, bit; - u32 reg32, mask_offset; - - if ((port > GPS)) - return; - - for (reg = 0; reg < 4; reg++) { - mask_offset = 8 * reg; - /* Don't run the inner loop if we're not touching any pins */ - if (!(pin_mask & (0xff << mask_offset))) - continue; - - reg32 = read32(&gpio->port[port].cfg[reg]); - for (j = 0; j < 8; j++) { - if (!(pin_mask & (1 << (j + mask_offset)))) - continue; - bit = j * 4; - reg32 &= ~(0xf << bit); - reg32 |= (pad_func & 0xf) << bit; - } - write32(&gpio->port[port].cfg[reg], reg32); - } -} diff --git a/src/cpu/allwinner/a10/ram_segs.h b/src/cpu/allwinner/a10/ram_segs.h deleted file mode 100644 index fa915cd..0000000 --- a/src/cpu/allwinner/a10/ram_segs.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * - * How we use DRAM on Allwinner CPUs - */ - -#include <symbols.h> - -/* - * Put CBMEM at top of RAM - */ -static inline void *a1x_get_cbmem_top(void) -{ - return _dram + (CONFIG_DRAM_SIZE_MB << 20); -} - -/* - * By CBFS cache, we mean a cached copy, in RAM, of the entire CBFS region. - */ -static inline void *a1x_get_cbfs_cache_top(void) -{ - /* Arbitrary 16 MiB gap for cbmem tables and bouncebuffer */ - return a1x_get_cbmem_top() - (16 << 20); -} - -static inline void *a1x_get_cbfs_cache_base(void) -{ - return a1x_get_cbfs_cache_top() - CONFIG_ROM_SIZE; -} diff --git a/src/cpu/allwinner/a10/raminit.c b/src/cpu/allwinner/a10/raminit.c deleted file mode 100644 index 3c18183..0000000 --- a/src/cpu/allwinner/a10/raminit.c +++ /dev/null @@ -1,478 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Henrik Nordstrom henrik@henriknordstrom.net - * Copyright (C) 2013 Luke Kenneth Casson Leighton lkcl@lkcl.net - * Copyright (C) 2007-2012 Allwinner Technology Co., Ltd. - * Berg Xing bergxing@allwinnertech.com - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 DRAM controller initialization - * - * Based on sun4i Linux kernel sources mach-sunxi/pm/standby/dram*.c - * and earlier U-Boot Allwiner A10 SPL work - */ - -#include "clock.h" -#include "dramc.h" -#include "memmap.h" -#include "timer.h" - -#include <device/mmio.h> -#include <delay.h> - -static struct a1x_dramc *const dram = (void *)A1X_DRAMC_BASE; - -static void mctl_ddr3_reset(void) -{ - if (a1x_get_cpu_chip_revision() != A1X_CHIP_REV_A) { - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(2); - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - } else { - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(2); - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - } -} - -static void mctl_set_drive(void) -{ - clrsetbits_le32(&dram->mcr, DRAM_MCR_MODE_NORM(0x3), - DRAM_MCR_MODE_EN(0x3) | 0xffc); -} - -static void mctl_itm_disable(void) -{ - clrsetbits_le32(&dram->ccr, DRAM_CCR_INIT, DRAM_CCR_ITM_OFF); -} - -static void mctl_itm_enable(void) -{ - clrbits_le32(&dram->ccr, DRAM_CCR_ITM_OFF); -} - -static void mctl_enable_dll0(u32 phase) -{ - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - ((phase >> 16) & 0x3f) << 6); - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET, DRAM_DLLCR_DISABLE); - udelay(2); - - clrbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET | DRAM_DLLCR_DISABLE); - udelay(22); - - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_DISABLE, DRAM_DLLCR_NRESET); - udelay(22); -} - -/* - * Note: This differs from pm/standby in that it checks the bus width - */ -static void mctl_enable_dllx(u32 phase) -{ - u32 i, n, bus_width; - - bus_width = read32(&dram->dcr); - - if ((bus_width & DRAM_DCR_BUS_WIDTH_MASK) == - DRAM_DCR_BUS_WIDTH(DRAM_DCR_BUS_WIDTH_32BIT)) - n = DRAM_DCR_NR_DLLCR_32BIT; - else - n = DRAM_DCR_NR_DLLCR_16BIT; - - for (i = 1; i < n; i++) { - clrsetbits_le32(&dram->dllcr[i], 0x4 << 14, - (phase & 0xf) << 14); - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET, - DRAM_DLLCR_DISABLE); - phase >>= 4; - } - udelay(2); - - for (i = 1; i < n; i++) - clrbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET | - DRAM_DLLCR_DISABLE); - udelay(22); - - for (i = 1; i < n; i++) - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_DISABLE, - DRAM_DLLCR_NRESET); - udelay(22); -} - -static u32 hpcr_value[32] = { - 0x0301, 0x0301, 0x0301, 0x0301, - 0x0301, 0x0301, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0x1031, 0x1031, 0x0735, 0x1035, - 0x1035, 0x0731, 0x1031, 0x0735, - 0x1035, 0x1031, 0x0731, 0x1035, - 0x1031, 0x0301, 0x0301, 0x0731 -}; - -static void mctl_configure_hostport(void) -{ - u32 i; - - for (i = 0; i < 32; i++) - write32(&dram->hpcr[i], hpcr_value[i]); -} - -static void mctl_setup_dram_clock(u32 clk) -{ - /* setup DRAM PLL */ - a1x_pll5_configure(clk / 24, 2, 2, 1); - - /* FIXME: This bit is not documented for A10, and altering it doesn't - * seem to change anything. - * - * #define CCM_PLL5_CTRL_VCO_GAIN (0x1 << 19) - * reg_val = read32(&ccm->pll5_cfg); - * reg_val &= ~CCM_PLL5_CTRL_VCO_GAIN; // PLL VCO Gain off - * write32(reg_val, &ccm->pll5_cfg); - */ - udelay(5500); - - a1x_pll5_enable_dram_clock_output(); - - /* reset GPS */ - /* FIXME: These bits are also undocumented, and seem to have no effect - * on A10. - * - * #define CCM_GPS_CTRL_RESET (0x1 << 0) - * #define CCM_GPS_CTRL_GATE (0x1 << 1) - * clrbits_le32(&ccm->gps_clk_cfg, CCM_GPS_CTRL_RESET | CCM_GPS_CTRL_GATE); - */ - a1x_periph_clock_enable(A1X_CLKEN_GPS); - udelay(1); - a1x_periph_clock_disable(A1X_CLKEN_GPS); - - /* setup MBUS clock */ - /* FIXME: The MBUS does not seem to be present or do anything on A10. It - * is documented in the A13 user manual, but changing settings on A10 - * has no effect. - * - * #define CCM_MBUS_CTRL_M(n) (((n) & 0xf) << 0) - * #define CCM_MBUS_CTRL_M_MASK CCM_MBUS_CTRL_M(0xf) - * #define CCM_MBUS_CTRL_M_X(n) ((n) - 1) - * #define CCM_MBUS_CTRL_N(n) (((n) & 0xf) << 16) - * #define CCM_MBUS_CTRL_N_MASK CCM_MBUS_CTRL_N(0xf) - * #define CCM_MBUS_CTRL_N_X(n) (((n) >> 3) ? 3 : (((n) >> 2) ? 2 : (((n) >> 1) ? 1 : 0))) - * #define CCM_MBUS_CTRL_CLK_SRC(n) (((n) & 0x3) << 24) - * #define CCM_MBUS_CTRL_CLK_SRC_MASK CCM_MBUS_CTRL_CLK_SRC(0x3) - * #define CCM_MBUS_CTRL_CLK_SRC_HOSC 0x0 - * #define CCM_MBUS_CTRL_CLK_SRC_PLL6 0x1 - * #define CCM_MBUS_CTRL_CLK_SRC_PLL5 0x2 - * #define CCM_MBUS_CTRL_GATE (0x1 << 31) - * reg_val = CCM_MBUS_CTRL_GATE | - * CCM_MBUS_CTRL_CLK_SRC(CCM_MBUS_CTRL_CLK_SRC_PLL5) | - * CCM_MBUS_CTRL_N(CCM_MBUS_CTRL_N_X(1)) | - * CCM_MBUS_CTRL_M(CCM_MBUS_CTRL_M_X(2)); - * write32(reg_val, &ccm->mbus_clk_cfg); - */ - /* - * open DRAMC AHB & DLL register clock - * close it first - */ - a1x_periph_clock_disable(A1X_CLKEN_SDRAM); - - udelay(22); - - /* then open it */ - a1x_periph_clock_enable(A1X_CLKEN_SDRAM); - udelay(22); -} - -static int dramc_scan_readpipe(void) -{ - u32 reg32; - - /* data training trigger */ - setbits_le32(&dram->ccr, DRAM_CCR_DATA_TRAINING); - - /* check whether data training process has completed */ - while (read32(&dram->ccr) & DRAM_CCR_DATA_TRAINING); - - /* check data training result */ - reg32 = read32(&dram->csr); - if (reg32 & DRAM_CSR_FAILED) - return -1; - - return 0; -} - -static int dramc_scan_dll_para(void) -{ - const u32 dqs_dly[7] = { 0x3, 0x2, 0x1, 0x0, 0xe, 0xd, 0xc }; - const u32 clk_dly[15] = { 0x07, 0x06, 0x05, 0x04, 0x03, - 0x02, 0x01, 0x00, 0x08, 0x10, - 0x18, 0x20, 0x28, 0x30, 0x38 - }; - u32 clk_dqs_count[15]; - u32 dqs_i, clk_i, cr_i; - u32 max_val, min_val; - u32 dqs_index, clk_index; - - /* Find DQS_DLY Pass Count for every CLK_DLY */ - for (clk_i = 0; clk_i < 15; clk_i++) { - clk_dqs_count[clk_i] = 0; - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - (clk_dly[clk_i] & 0x3f) << 6); - for (dqs_i = 0; dqs_i < 7; dqs_i++) { - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_i] & 0x4f) << 14); - } - udelay(2); - if (dramc_scan_readpipe() == 0) - clk_dqs_count[clk_i]++; - } - } - /* Test DQS_DLY Pass Count for every CLK_DLY from up to down */ - for (dqs_i = 15; dqs_i > 0; dqs_i--) { - max_val = 15; - min_val = 15; - for (clk_i = 0; clk_i < 15; clk_i++) { - if (clk_dqs_count[clk_i] == dqs_i) { - max_val = clk_i; - if (min_val == 15) - min_val = clk_i; - } - } - if (max_val < 15) - break; - } - - /* Check if Find a CLK_DLY failed */ - if (!dqs_i) - goto fail; - - /* Find the middle index of CLK_DLY */ - clk_index = (max_val + min_val) >> 1; - if ((max_val == (15 - 1)) && (min_val > 0)) - /* if CLK_DLY[MCTL_CLK_DLY_COUNT] is very good, then the middle - * value can be more close to the max_val - */ - clk_index = (15 + clk_index) >> 1; - else if ((max_val < (15 - 1)) && (min_val == 0)) - /* if CLK_DLY[0] is very good, then the middle value can be more - * close to the min_val - */ - clk_index >>= 1; - if (clk_dqs_count[clk_index] < dqs_i) - clk_index = min_val; - - /* Find the middle index of DQS_DLY for the CLK_DLY got above, and Scan - * read pipe again - */ - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - (clk_dly[clk_index] & 0x3f) << 6); - max_val = 7; - min_val = 7; - for (dqs_i = 0; dqs_i < 7; dqs_i++) { - clk_dqs_count[dqs_i] = 0; - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_i] & 0x4f) << 14); - } - udelay(2); - if (dramc_scan_readpipe() == 0) { - clk_dqs_count[dqs_i] = 1; - max_val = dqs_i; - if (min_val == 7) - min_val = dqs_i; - } - } - - if (max_val < 7) { - dqs_index = (max_val + min_val) >> 1; - if ((max_val == (7 - 1)) && (min_val > 0)) - dqs_index = (7 + dqs_index) >> 1; - else if ((max_val < (7 - 1)) && (min_val == 0)) - dqs_index >>= 1; - if (!clk_dqs_count[dqs_index]) - dqs_index = min_val; - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_index] & 0x4f) << 14); - } - udelay(2); - return dramc_scan_readpipe(); - } - -fail: - clrbits_le32(&dram->dllcr[0], 0x3f << 6); - for (cr_i = 1; cr_i < 5; cr_i++) - clrbits_le32(&dram->dllcr[cr_i], 0x4f << 14); - udelay(2); - - return dramc_scan_readpipe(); -} - -static void dramc_set_autorefresh_cycle(u32 clk) -{ - u32 reg32; - u32 tmp_val; - u32 reg_dcr; - - if (clk < 600) { - reg_dcr = read32(&dram->dcr); - if ((reg_dcr & DRAM_DCR_CHIP_DENSITY_MASK) <= - DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_1024M)) - reg32 = (131 * clk) >> 10; - else - reg32 = (336 * clk) >> 10; - - tmp_val = (7987 * clk) >> 10; - tmp_val = tmp_val * 9 - 200; - reg32 |= tmp_val << 8; - reg32 |= 0x8 << 24; - write32(&dram->drr, reg32); - } else { - write32(&dram->drr, 0x0); - } -} - -unsigned long dramc_init(struct dram_para *para) -{ - u32 reg32; - int ret_val; - - /* check input dram parameter structure */ - if (!para) - return 0; - - /* setup DRAM relative clock */ - mctl_setup_dram_clock(para->clock); - - /* reset external DRAM */ - mctl_ddr3_reset(); - - mctl_set_drive(); - - /* dram clock off */ - a1x_gate_dram_clock_output(); - - /* select dram controller 1 */ - write32(&dram->csel, DRAM_CSEL_MAGIC); - - mctl_itm_disable(); - mctl_enable_dll0(para->tpr3); - - /* configure external DRAM */ - reg32 = 0x0; - if (para->type == DRAM_MEMORY_TYPE_DDR3) - reg32 |= DRAM_DCR_TYPE_DDR3; - reg32 |= DRAM_DCR_IO_WIDTH(para->io_width >> 3); - - if (para->density == 256) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_256M); - else if (para->density == 512) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_512M); - else if (para->density == 1024) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_1024M); - else if (para->density == 2048) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_2048M); - else if (para->density == 4096) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_4096M); - else if (para->density == 8192) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_8192M); - else - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_256M); - - reg32 |= DRAM_DCR_BUS_WIDTH((para->bus_width >> 3) - 1); - reg32 |= DRAM_DCR_RANK_SEL(para->rank_num - 1); - reg32 |= DRAM_DCR_CMD_RANK_ALL; - reg32 |= DRAM_DCR_MODE(DRAM_DCR_MODE_INTERLEAVE); - write32(&dram->dcr, reg32); - - /* dram clock on */ - a1x_ungate_dram_clock_output(); - - udelay(1); - - while (read32(&dram->ccr) & DRAM_CCR_INIT); - - mctl_enable_dllx(para->tpr3); - - /* set odt impendance divide ratio */ - reg32 = ((para->zq) >> 8) & 0xfffff; - reg32 |= ((para->zq) & 0xff) << 20; - reg32 |= (para->zq) & 0xf0000000; - write32(&dram->zqcr0, reg32); - - /* set I/O configure register */ - reg32 = 0x00cc0000; - reg32 |= (para->odt_en) & 0x3; - reg32 |= ((para->odt_en) & 0x3) << 30; - write32(&dram->iocr, reg32); - - /* set refresh period */ - dramc_set_autorefresh_cycle(para->clock); - - /* set timing parameters */ - write32(&dram->tpr0, para->tpr0); - write32(&dram->tpr1, para->tpr1); - write32(&dram->tpr2, para->tpr2); - - if (para->type == DRAM_MEMORY_TYPE_DDR3) { - reg32 = DRAM_MR_BURST_LENGTH(0x0); - reg32 |= DRAM_MR_CAS_LAT(para->cas - 4); - reg32 |= DRAM_MR_WRITE_RECOVERY(0x5); - } else if (para->type == DRAM_MEMORY_TYPE_DDR2) { - reg32 = DRAM_MR_BURST_LENGTH(0x2); - reg32 |= DRAM_MR_CAS_LAT(para->cas); - reg32 |= DRAM_MR_WRITE_RECOVERY(0x5); - } - write32(&dram->mr, reg32); - - write32(&dram->emr, para->emr1); - write32(&dram->emr2, para->emr2); - write32(&dram->emr3, para->emr3); - - /* set DQS window mode */ - clrsetbits_le32(&dram->ccr, DRAM_CCR_DQS_DRIFT_COMP, DRAM_CCR_DQS_GATE); - - /* reset external DRAM */ - setbits_le32(&dram->ccr, DRAM_CCR_INIT); - while (read32(&dram->ccr) & DRAM_CCR_INIT); - - /* scan read pipe value */ - mctl_itm_enable(); - if (para->tpr3 & (0x1 << 31)) { - ret_val = dramc_scan_dll_para(); - if (ret_val == 0) - para->tpr3 = - (((read32(&dram->dllcr[0]) >> 6) & 0x3f) << 16) | - (((read32(&dram->dllcr[1]) >> 14) & 0xf) << 0) | - (((read32(&dram->dllcr[2]) >> 14) & 0xf) << 4) | - (((read32(&dram->dllcr[3]) >> 14) & 0xf) << 8) | - (((read32(&dram->dllcr[4]) >> 14) & 0xf) << 12); - } else { - ret_val = dramc_scan_readpipe(); - } - - if (ret_val < 0) - return 0; - - /* configure all host port */ - mctl_configure_hostport(); - - return para->size; -} diff --git a/src/cpu/allwinner/a10/timer.c b/src/cpu/allwinner/a10/timer.c deleted file mode 100644 index 87228a0..0000000 --- a/src/cpu/allwinner/a10/timer.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Timer control and delays for Allwinner CPUs - * - */ - -#include <device/mmio.h> -#include <delay.h> - -#include "timer.h" - -struct a1x_timer_module *const timer_module = (void *)A1X_TIMER_BASE; -struct a1x_timer *const tmr0 = - &((struct a1x_timer_module *)A1X_TIMER_BASE)->timer[0]; - -static inline u32 read_timer(void) -{ - return read32(&tmr0->val); -} - -void init_timer(void) -{ - u32 reg32; - /* Load the timer rollover value */ - write32(&tmr0->interval, 0xffffffff); - /* Configure the timer to run from 24MHz oscillator, no prescaler */ - reg32 = TIMER_CTRL_PRESC_DIV_EXP(0); - reg32 |= TIMER_CTRL_CLK_SRC_OSC24M; - reg32 |= TIMER_CTRL_RELOAD; - reg32 |= TIMER_CTRL_TMR_EN; - write32(&tmr0->ctrl, reg32); -} - -void udelay(unsigned usec) -{ - u32 curr_tick, last_tick; - s32 ticks_left; - - last_tick = read_timer(); - /* 24 timer ticks per microsecond (24 MHz, divided by 1) */ - ticks_left = usec * 24; - - /* FIXME: Should we consider timer rollover? - * From when we start the timer, we have almost three minutes before it - * rolls over, so we should be long into having booted our payload. - */ - while (ticks_left > 0) { - curr_tick = read_timer(); - /* Timer value decreases with each tick */ - ticks_left -= last_tick - curr_tick; - last_tick = curr_tick; - } - -} - -/* - * This function has nothing to do with timers; however, the chip revision - * register is in the timer module, so keep this function here. - */ -u8 a1x_get_cpu_chip_revision(void) -{ - write32(&timer_module->cpu_cfg, 0); - return (read32(&timer_module->cpu_cfg) >> 6) & 0x3; -} diff --git a/src/cpu/allwinner/a10/timer.h b/src/cpu/allwinner/a10/timer.h deleted file mode 100644 index b7658da..0000000 --- a/src/cpu/allwinner/a10/timer.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version - * - * 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. - * - * Definitions for timer control on Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_TIMER_H -#define CPU_ALLWINNER_A10_TIMER_H - -#include "memmap.h" -#include <types.h> - -/* TMRx_CTRL values */ -#define TIMER_CTRL_MODE_SINGLE (1 << 7) -#define TIMER_CTRL_PRESC_MASK (0x7 << 4) -#define TIMER_CTRL_PRESC_DIV_EXP(ep) ((ep << 4) & TIMER_CTRL_PRESC_MASK) -#define TIMER_CTRL_CLK_SRC_MASK (0x3 << 2) -#define TIMER_CTRL_CLK_SRC_LOSC (0x0 << 2) -#define TIMER_CTRL_CLK_SRC_OSC24M (0x1 << 2) -#define TIMER_CTRL_CLK_SRC_PLL6 (0x2 << 2) -#define TIMER_CTRL_RELOAD (1 << 1) -#define TIMER_CTRL_TMR_EN (1 << 0) - -/* Chip revision definitions (found in CPU_CFG register) */ -#define A1X_CHIP_REV_A 0x0 -#define A1X_CHIP_REV_C1 0x1 -#define A1X_CHIP_REV_C2 0x2 -#define A1X_CHIP_REV_B 0x3 - - -/* General purpose timer */ -struct a1x_timer { - u32 ctrl; - u32 interval; - u32 val; - u8 res[4]; -} __packed; - -/* Audio video sync*/ -struct a1x_avs { - u32 ctrl; /* 0x80 */ - u32 cnt0; /* 0x84 */ - u32 cnt1; /* 0x88 */ - u32 div; /* 0x8c */ -} __packed; - -/* Watchdog */ -struct a1x_wdog { - u32 ctrl; /* 0x90 */ - u32 mode; /* 0x94 */ -} __packed; - -/* 64 bit counter */ -struct a1x_64cnt { - u32 ctrl; /* 0xa0 */ - u32 lo; /* 0xa4 */ - u32 hi; /* 0xa8 */ -} __packed; - -/* Rtc */ -struct a1x_rtc { - u32 ctrl; /* 0x100 */ - u32 yymmdd; /* 0x104 */ - u32 hhmmss; /* 0x108 */ -} __packed; - -/* Alarm */ -struct a1x_alarm { - u32 ddhhmmss; /* 0x10c */ - u32 hhmmss; /* 0x110 */ - u32 en; /* 0x114 */ - u32 irq_en; /* 0x118 */ - u32 irq_sta; /* 0x11c */ -} __packed; - -struct a1x_timer_module { - u32 irq_en; /* 0x00 */ - u32 irq_sta; /* 0x04 */ - u8 res1[8]; - struct a1x_timer timer[6]; /* We have 6 timers */ - u8 res2[16]; - struct a1x_avs avs; - struct a1x_wdog wdog; - u8 res3[8]; - struct a1x_64cnt cnt64; - u8 res4[0x58]; - struct a1x_rtc rtc; - struct a1x_alarm alarm; - u32 gp_data[4]; - u8 res5[8]; - u32 cpu_cfg; -} __packed; - -u8 a1x_get_cpu_chip_revision(void); - -#endif /* CPU_ALLWINNER_A10_TIMER_H */ diff --git a/src/cpu/allwinner/a10/twi.c b/src/cpu/allwinner/a10/twi.c deleted file mode 100644 index 6e7f9e2..0000000 --- a/src/cpu/allwinner/a10/twi.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Henrik Nordstrom henrik@henriknordstrom.net - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Setup helpers for Two Wire Interface (TWI) (I2C) Allwinner CPUs - * - * Only functionality for I2C master is provided. - * Largely based on the uboot-sunxi code. - */ - -#include "memmap.h" -#include "twi.h" - -#include <device/mmio.h> -#include <delay.h> -#include <device/i2c_simple.h> - -#define TWI_BASE(n) (A1X_TWI0_BASE + 0x400 * (n)) - -#define TWI_TIMEOUT (50 * 1000) - -static u8 is_busy(struct a1x_twi *twi) -{ - return (read32(&twi->stat) != TWI_STAT_IDLE); -} - -static enum cb_err wait_until_idle(struct a1x_twi *twi) -{ - u32 i = TWI_TIMEOUT; - while (i-- && is_busy((twi))) - udelay(1); - return i ? CB_SUCCESS : CB_ERR; -} - -/* FIXME: This function is basic, and unintelligent */ -static void configure_clock(struct a1x_twi *twi, u32 speed_hz) -{ - /* FIXME: We assume clock is 24MHz, which may not be the case */ - u32 apb_clk = 24000000, m, n; - - /* Pre-divide the clock by 8 */ - n = 3; - m = (apb_clk >> n) / speed_hz; - write32(&twi->clk, TWI_CLK_M(m) | TWI_CLK_N(n)); -} - -void a1x_twi_init(u8 bus, u32 speed_hz) -{ - u32 i = TWI_TIMEOUT; - struct a1x_twi *twi = (void *)TWI_BASE(bus); - - configure_clock(twi, speed_hz); - - /* Enable the I2C bus */ - write32(&twi->ctl, TWI_CTL_BUS_EN); - /* Issue soft reset */ - write32(&twi->reset, 1); - - while (i-- && read32(&twi->reset)) - udelay(1); -} - -static void clear_interrupt_flag(struct a1x_twi *twi) -{ - write32(&twi->ctl, read32(&twi->ctl) & ~TWI_CTL_INT_FLAG); -} - -static void i2c_send_data(struct a1x_twi *twi, u8 data) -{ - write32(&twi->data, data); - clear_interrupt_flag(twi); -} - -static enum twi_status wait_for_status(struct a1x_twi *twi) -{ - u32 i = TWI_TIMEOUT; - /* Wait until interrupt is asserted again */ - while (i-- && !(read32(&twi->ctl) & TWI_CTL_INT_FLAG)) - udelay(1); - /* A timeout here most likely indicates a bus error */ - return i ? read32(&twi->stat) : TWI_STAT_BUS_ERROR; -} - -static void i2c_send_start(struct a1x_twi *twi) -{ - u32 reg32, i; - - /* Send START condition */ - reg32 = read32(&twi->ctl); - reg32 &= ~TWI_CTL_INT_FLAG; - reg32 |= TWI_CTL_M_START; - write32(&twi->ctl, reg32); - - /* M_START is automatically cleared after condition is transmitted */ - i = TWI_TIMEOUT; - while (i-- && (read32(&twi->ctl) & TWI_CTL_M_START)) - udelay(1); -} - -static void i2c_send_stop(struct a1x_twi *twi) -{ - u32 reg32; - - /* Send STOP condition */ - reg32 = read32(&twi->ctl); - reg32 &= ~TWI_CTL_INT_FLAG; - reg32 |= TWI_CTL_M_STOP; - write32(&twi->ctl, reg32); -} - -static int i2c_read(struct a1x_twi *twi, uint8_t chip, - uint8_t *buf, size_t len) -{ - unsigned count = len; - enum twi_status expected_status; - - /* Send restart for read */ - i2c_send_start(twi); - if (wait_for_status(twi) != TWI_STAT_TX_RSTART) - return CB_ERR; - - /* Send chip address */ - i2c_send_data(twi, chip << 1 | 1); - if (wait_for_status(twi) != TWI_STAT_TX_AR_ACK) - return CB_ERR; - - /* Start ACK-ing received data */ - setbits_le32(&twi->ctl, TWI_CTL_A_ACK); - expected_status = TWI_STAT_RXD_ACK; - - /* Read data */ - while (count > 0) { - if (count == 1) { - /* Do not ACK the last byte */ - clrbits_le32(&twi->ctl, TWI_CTL_A_ACK); - expected_status = TWI_STAT_RXD_NAK; - } - - clear_interrupt_flag(twi); - - if (wait_for_status(twi) != expected_status) - return CB_ERR; - - *buf++ = read32(&twi->data); - count--; - } - - return len; -} - -static int i2c_write(struct a1x_twi *twi, uint8_t chip, - const uint8_t *buf, size_t len) -{ - size_t count = len; - - i2c_send_start(twi); - if (wait_for_status(twi) != TWI_STAT_TX_START) - return CB_ERR; - - /* Send chip address */ - i2c_send_data(twi, chip << 1); - if (wait_for_status(twi) != TWI_STAT_TX_AW_ACK) - return CB_ERR; - - /* Send data */ - while (count > 0) { - i2c_send_data(twi, *buf++); - if (wait_for_status(twi) != TWI_STAT_TXD_ACK) - return CB_ERR; - count--; - } - - return len; -} - -int platform_i2c_transfer(unsigned bus, struct i2c_msg *segments, int count) -{ - int i, ret = CB_SUCCESS; - struct i2c_msg *seg = segments; - struct a1x_twi *twi = (void *)TWI_BASE(bus); - - - if (wait_until_idle(twi) != CB_SUCCESS) - return CB_ERR; - - for (i = 0; i < count; i++) { - seg = segments + i; - - if (seg->flags & I2C_M_RD) { - ret = i2c_read(twi, seg->slave, seg->buf, seg->len); - if (ret < 0) - break; - } else { - ret = i2c_write(twi, seg->slave, seg->buf, seg->len); - if (ret < 0) - break; - } - } - - /* Don't worry about the status. STOP is on a best-effort basis */ - i2c_send_stop(twi); - - return ret; -} diff --git a/src/cpu/allwinner/a10/twi.h b/src/cpu/allwinner/a10/twi.h deleted file mode 100644 index 833b1dc..0000000 --- a/src/cpu/allwinner/a10/twi.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions Two Wire Interface (TWI) (I2C) Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_TWI_H -#define CPU_ALLWINNER_A10_TWI_H - -#include <types.h> - -/* TWI_CTL values */ -#define TWI_CTL_INT_EN (1 << 7) -#define TWI_CTL_BUS_EN (1 << 6) -#define TWI_CTL_M_START (1 << 5) -#define TWI_CTL_M_STOP (1 << 4) -#define TWI_CTL_INT_FLAG (1 << 3) -#define TWI_CTL_A_ACK (1 << 2) - -/* TWI_STAT values */ -enum twi_status { - TWI_STAT_BUS_ERROR = 0x00, /**< Bus error */ - TWI_STAT_TX_START = 0x08, /**< START sent */ - TWI_STAT_TX_RSTART = 0x10, /**< Repeated START sent */ - TWI_STAT_TX_AW_ACK = 0x18, /**< Sent address+read, ACK */ - TWI_STAT_TX_AW_NAK = 0x20, /**< Sent address+read, NAK */ - TWI_STAT_TXD_ACK = 0x28, /**< Sent data, got ACK */ - TWI_STAT_TXD_NAK = 0x30, /**< Sent data, no ACK */ - TWI_STAT_LOST_ARB = 0x38, /**< Lost arbitration */ - TWI_STAT_TX_AR_ACK = 0x40, /**< Sent address+write, ACK */ - TWI_STAT_TX_AR_NAK = 0x48, /**< Sent address+write, NAK */ - TWI_STAT_RXD_ACK = 0x50, /**< Got data, sent ACK */ - TWI_STAT_RXD_NAK = 0x58, /**< Got data, no ACK */ - TWI_STAT_IDLE = 0xf8, /**< Bus idle*/ -}; - -/* TWI_CLK values */ -#define TWI_CLK_M_MASK (0xf << 3) -#define TWI_CLK_M(m) (((m - 1) << 3) & TWI_CLK_M_MASK) -#define TWI_CLK_N_MASK (0x7 << 0) -#define TWI_CLK_N(n) ((n) & TWI_CLK_N_MASK) - -struct a1x_twi { - u32 addr; /**< 0x00: Slave address */ - u32 xaddr; /**< 0x04: Extended slave address */ - u32 data; /**< 0x08: Data byte */ - u32 ctl; /**< 0x0C: Control register */ - u32 stat; /**< 0x10: Status register */ - u32 clk; /**< 0x14: Clock control register */ - u32 reset; /**< 0x18: Software reset */ - u32 efr; /**< 0x1C: Enhanced Feature register */ - u32 lcr; /**< 0x20: Line control register */ -}; - -void a1x_twi_init(u8 bus, u32 speed_hz); - -#endif /* CPU_ALLWINNER_A10_TWI_H */ diff --git a/src/cpu/allwinner/a10/uart.c b/src/cpu/allwinner/a10/uart.c deleted file mode 100644 index c721a67..0000000 --- a/src/cpu/allwinner/a10/uart.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 (at your option) - * any later version. - * - * 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. - * - * Uart setup helpers for Allwinner SoCs - * - * - */ - -#include "uart.h" -#include <device/mmio.h> -#include <console/uart.h> -#include <drivers/uart/uart8250reg.h> - -/** - * \brief Configure line control settings for UART - */ -static void a10_uart_configure(struct a10_uart *uart, u32 baud_rate, u8 data_bits, - enum uart_parity parity, u8 stop_bits) -{ - u32 reg32; - u16 div; - - div = (u16) uart_baudrate_divisor(baud_rate, - uart_platform_refclk(), 16); - /* Enable access to Divisor Latch register */ - write32(&uart->lcr, UART8250_LCR_DLAB); - /* Set baudrate */ - write32(&uart->dlh, (div >> 8) & 0xff); - write32(&uart->dll, div & 0xff); - /* Set line control */ - reg32 = (data_bits - 5) & UART8250_LCR_WLS_MSK; - switch (parity) { - case UART_PARITY_ODD: - reg32 |= UART8250_LCR_PEN; - break; - case UART_PARITY_EVEN: - reg32 |= UART8250_LCR_PEN; - reg32 |= UART8250_LCR_EPS; - break; - case UART_PARITY_NONE: /* Fall through */ - default: - break; - } - write32(&uart->lcr, reg32); -} - -static void a10_uart_enable_fifos(struct a10_uart *uart) -{ - write32(&uart->fcr, UART8250_FCR_FIFO_EN); -} - -static int tx_fifo_full(struct a10_uart *uart) -{ - /* This may be a misnomer, or a typo in the datasheet. THRE indicates - * that the TX register is empty, not that the FIFO is not full, but - * this may be due to a datasheet typo. Keep the current name to signal - * intent. */ - return !(read32(&uart->lsr) & UART8250_LSR_THRE); -} - -static int rx_fifo_empty(struct a10_uart *uart) -{ - return !(read32(&uart->lsr) & UART8250_LSR_DR); -} - -/** - * \brief Read a single byte from the UART. - * - * Blocks until at least a byte is available. - */ -static u8 a10_uart_rx_blocking(struct a10_uart *uart) -{ - while (rx_fifo_empty(uart)); - - return read32(&uart->rbr); -} - -/** - * \brief Write a single byte to the UART. - * - * Blocks until there is space in the FIFO. - */ -static void a10_uart_tx_blocking(struct a10_uart *uart, u8 data) -{ - while (tx_fifo_full(uart)); - - return write32(&uart->thr, data); -} - - -void uart_init(int idx) -{ - struct a10_uart *uart_base = uart_platform_baseptr(idx); - - /* Use default 8N1 encoding */ - a10_uart_configure(uart_base, get_uart_baudrate(), - 8, UART_PARITY_NONE, 1); - a10_uart_enable_fifos(uart_base); -} - -unsigned char uart_rx_byte(int idx) -{ - return a10_uart_rx_blocking(uart_platform_baseptr(idx)); -} - -void uart_tx_byte(int idx, unsigned char data) -{ - a10_uart_tx_blocking(uart_platform_baseptr(idx), data); -} - -void uart_tx_flush(int idx) -{ -} diff --git a/src/cpu/allwinner/a10/uart.h b/src/cpu/allwinner/a10/uart.h deleted file mode 100644 index a57fc9c..0000000 --- a/src/cpu/allwinner/a10/uart.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions for UART on Allwinner CPUs - * - * The UART on the A10 seems to be 8250-compatible, however, this has not been - * verified. Our 8250mem code is specific to x86, and does not yet work, so we - * have to re-implement it ARM-style for the time being. The register - * definitions are present in <uart7250.h>, and are not redefined here. - * - */ - -#ifndef CPU_ALLWINNER_A10_UART_H -#define CPU_ALLWINNER_A10_UART_H - -#include <types.h> - -struct a10_uart { - union { - /* operational mode */ - u32 rbr; /* receiver buffer (read) */ - u32 thr; /* transmit holding (write) */ - /* config mode (DLAB set) */ - u32 dll; /* divisor latches low */ - }; - - union { - /* operational mode */ - u32 ier; /* interrupt enable */ - /* config mode (DLAB set) */ - u32 dlh; /* divisor latches high */ - }; - - union { - u32 iir; /* interrupt ID (read) */ - u32 fcr; /* FIFO control (write) */ - }; - - u32 lcr; /* line control */ - - /* 0x10 */ - u32 mcr; /* modem control */ - u32 lsr; /* line status, read-only */ - u32 msr; /* modem status */ - u32 sch; /* scratch register */ - - u8 reserved_0x20[0x50]; - - /* 0x70 */ - u8 reserved_0x70[0xc]; - u32 usr; /* UART status register */ - - /* 0x80 */ - u32 tfl; /* Transmit FIFO level */ - u32 rfl; /* Receive FIFO level */ - u8 reserved_0x88[0x18]; - - /* 0xa0 */ - u8 reserved_0xa0[4]; - u32 halt; /* Halt register */ - -} __packed; - -enum uart_parity { - UART_PARITY_NONE, - UART_PARITY_EVEN, - UART_PARITY_ODD, -}; - -#endif /* CPU_ALLWINNER_A10_UART_H */ diff --git a/src/cpu/allwinner/a10/uart_console.c b/src/cpu/allwinner/a10/uart_console.c deleted file mode 100644 index 363a41a..0000000 --- a/src/cpu/allwinner/a10/uart_console.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Glue to UART code to enable serial console - */ - -#include <types.h> -#include <console/uart.h> -#include <boot/coreboot_tables.h> - -#include "memmap.h" - -uintptr_t uart_platform_base(int idx) -{ - /* UART blocks are mapped 0x400 bytes apart */ - if (idx < 8) - return A1X_UART0_BASE + 0x400 * idx; - else - return 0; -} - -/* FIXME: We assume clock is 24MHz, which may not be the case. */ -unsigned int uart_platform_refclk(void) -{ - return 24000000; -} - -#ifndef __PRE_RAM__ -void uart_fill_lb(void *data) -{ - struct lb_serial serial; - serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; - serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE); - serial.baud = get_uart_baudrate(); - serial.regwidth = 1; - serial.input_hertz = uart_platform_refclk(); - serial.uart_pci_addr = 0; - lb_add_serial(&serial, data); - - lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); -} -#endif
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33133 )
Change subject: cpu/allwinner: Remove support ......................................................................
Patch Set 1: Code-Review+2
Maybe wait with merge until coreboot 4.10 to have a clean cut.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33133 )
Change subject: cpu/allwinner: Remove support ......................................................................
Patch Set 1: Code-Review+2
Christian Walter has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33133 )
Change subject: cpu/allwinner: Remove support ......................................................................
Patch Set 1: Code-Review+1
Hello Angel Pons, Christian Walter, build bot (Jenkins), Nico Huber,
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/33133
to look at the new patch set (#2).
Change subject: cpu/allwinner: Remove support ......................................................................
cpu/allwinner: Remove support
The Allwinner code was never completed and lacks a driver to load romstage from the bootblock.
Change-Id: If2bae9e28a6e1ed6bfe0e9cb022ca410918cc4db Signed-off-by: Arthur Heymans arthur@aheymans.xyz --- D src/cpu/allwinner/Kconfig D src/cpu/allwinner/Makefile.inc D src/cpu/allwinner/a10/Kconfig D src/cpu/allwinner/a10/Makefile.inc D src/cpu/allwinner/a10/bootblock.c D src/cpu/allwinner/a10/bootblock_media.c D src/cpu/allwinner/a10/cbmem.c D src/cpu/allwinner/a10/chip.h D src/cpu/allwinner/a10/clock.c D src/cpu/allwinner/a10/clock.h D src/cpu/allwinner/a10/cpu.c D src/cpu/allwinner/a10/dramc.h D src/cpu/allwinner/a10/gpio.c D src/cpu/allwinner/a10/gpio.h D src/cpu/allwinner/a10/memmap.h D src/cpu/allwinner/a10/pinmux.c D src/cpu/allwinner/a10/ram_segs.h D src/cpu/allwinner/a10/raminit.c D src/cpu/allwinner/a10/timer.c D src/cpu/allwinner/a10/timer.h D src/cpu/allwinner/a10/twi.c D src/cpu/allwinner/a10/twi.h D src/cpu/allwinner/a10/uart.c D src/cpu/allwinner/a10/uart.h D src/cpu/allwinner/a10/uart_console.c 25 files changed, 0 insertions(+), 2,647 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/33133/2
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33133 )
Change subject: cpu/allwinner: Remove support ......................................................................
Patch Set 2: Code-Review+2
Patrick Georgi has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/33133 )
Change subject: cpu/allwinner: Remove support ......................................................................
cpu/allwinner: Remove support
The Allwinner code was never completed and lacks a driver to load romstage from the bootblock.
Change-Id: If2bae9e28a6e1ed6bfe0e9cb022ca410918cc4db Signed-off-by: Arthur Heymans arthur@aheymans.xyz Reviewed-on: https://review.coreboot.org/c/coreboot/+/33133 Reviewed-by: Angel Pons th3fanbus@gmail.com Tested-by: build bot (Jenkins) no-reply@coreboot.org --- D src/cpu/allwinner/Kconfig D src/cpu/allwinner/Makefile.inc D src/cpu/allwinner/a10/Kconfig D src/cpu/allwinner/a10/Makefile.inc D src/cpu/allwinner/a10/bootblock.c D src/cpu/allwinner/a10/bootblock_media.c D src/cpu/allwinner/a10/cbmem.c D src/cpu/allwinner/a10/chip.h D src/cpu/allwinner/a10/clock.c D src/cpu/allwinner/a10/clock.h D src/cpu/allwinner/a10/cpu.c D src/cpu/allwinner/a10/dramc.h D src/cpu/allwinner/a10/gpio.c D src/cpu/allwinner/a10/gpio.h D src/cpu/allwinner/a10/memmap.h D src/cpu/allwinner/a10/pinmux.c D src/cpu/allwinner/a10/ram_segs.h D src/cpu/allwinner/a10/raminit.c D src/cpu/allwinner/a10/timer.c D src/cpu/allwinner/a10/timer.h D src/cpu/allwinner/a10/twi.c D src/cpu/allwinner/a10/twi.h D src/cpu/allwinner/a10/uart.c D src/cpu/allwinner/a10/uart.h D src/cpu/allwinner/a10/uart_console.c 25 files changed, 0 insertions(+), 2,647 deletions(-)
Approvals: build bot (Jenkins): Verified Angel Pons: Looks good to me, approved
diff --git a/src/cpu/allwinner/Kconfig b/src/cpu/allwinner/Kconfig deleted file mode 100644 index d97cb64..0000000 --- a/src/cpu/allwinner/Kconfig +++ /dev/null @@ -1 +0,0 @@ -source src/cpu/allwinner/a10/Kconfig diff --git a/src/cpu/allwinner/Makefile.inc b/src/cpu/allwinner/Makefile.inc deleted file mode 100644 index e52a12e..0000000 --- a/src/cpu/allwinner/Makefile.inc +++ /dev/null @@ -1 +0,0 @@ -subdirs-$(CONFIG_CPU_ALLWINNER_A10) += a10 diff --git a/src/cpu/allwinner/a10/Kconfig b/src/cpu/allwinner/a10/Kconfig deleted file mode 100644 index 0b5d9bf..0000000 --- a/src/cpu/allwinner/a10/Kconfig +++ /dev/null @@ -1,18 +0,0 @@ -config CPU_ALLWINNER_A10 - bool - default n - -if CPU_ALLWINNER_A10 - -config CPU_SPECIFIC_OPTIONS - def_bool y - select ARCH_BOOTBLOCK_ARMV7 - select ARCH_VERSTAGE_ARMV7 - select ARCH_ROMSTAGE_ARMV7 - select ARCH_RAMSTAGE_ARMV7 - select NO_MONOTONIC_TIMER - select HAVE_UART_SPECIAL - select UART_OVERRIDE_REFCLK - select BOOT_DEVICE_NOT_SPI_FLASH - -endif # if CPU_ALLWINNER_A10 diff --git a/src/cpu/allwinner/a10/Makefile.inc b/src/cpu/allwinner/a10/Makefile.inc deleted file mode 100644 index cbdb5ae..0000000 --- a/src/cpu/allwinner/a10/Makefile.inc +++ /dev/null @@ -1,55 +0,0 @@ -bootblock-y += bootblock.c -bootblock-y += bootblock_media.c -bootblock-y += clock.c -bootblock-y += gpio.c -bootblock-y += pinmux.c -bootblock-y += raminit.c -bootblock-y += timer.c - -romstage-y += bootblock_media.c -romstage-y += cbmem.c -romstage-y += clock.c -romstage-y += pinmux.c -romstage-y += timer.c -romstage-y += twi.c - -ramstage-y += bootblock_media.c -ramstage-y += cbmem.c -ramstage-y += clock.c -ramstage-y += cpu.c -ramstage-y += timer.c -ramstage-y += twi.c - -bootblock-y += uart.c uart_console.c -romstage-y += uart.c uart_console.c -ramstage-y += uart.c uart_console.c - -real-target: $(obj)/BOOT0 - -get_bootblock_size= \ - $(eval bb_s=$(shell $(CBFSTOOL) $(1) print | grep bootblocksize | \ - sed 's/[^0-9 ]//g')) \ - $(shell echo $$(($(word 2, $(strip $(bb_s)))))) - -# This tool is used to prepend a header to coreboot.rom to trick the SoC into -# loading out bootblock -# -MKSUNXIBOOT:=$(objutil)/mksunxiboot -$(MKSUNXIBOOT): $(top)/util/arm_boot_tools/mksunxiboot/mksunxiboot.c - @printf " HOSTCC $(subst $(obj)/,,$(@))\n" - $(HOSTCC) $(HOSTCFLAGS) -o $@ $< - -# The boot ROM in the SoC will start loading code if a special BOOT0 header is -# found (at an offset of 8KiB in either NAND or SD), and the checksum is -# correct. This header is added by the 'mxsunxiboot' tool, which is provided -# under util/arm_boot_tools/mksunxiboot. The boot ROM will load at most 24KiB of -# data to SRAM. The BOOT0 header takes 32 bytes, so bootblock is limited to -# 24KiB - 32 bytes. -# TODO: make mksunxiboot take the bootblock size as a parameter -# TODO: print an error if bootblock is too large (maybe place ROMSTAGE at the -# exact offset needed to collide with the bootblock) -# FIXME: A10 loads 24KiB. According to Oliver other chips load a little more -# -$(obj)/BOOT0: $(obj)/coreboot.rom $(MKSUNXIBOOT) - @printf " BOOT0 $(subst $(obj)/,,$(^))\n" - $(MKSUNXIBOOT) $(word 1, $^) $@ diff --git a/src/cpu/allwinner/a10/bootblock.c b/src/cpu/allwinner/a10/bootblock.c deleted file mode 100644 index 471104b..0000000 --- a/src/cpu/allwinner/a10/bootblock.c +++ /dev/null @@ -1,33 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Google Inc. - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 bootblock initialization - * - */ - -#include <types.h> -#include <arch/cache.h> -#include <bootblock_common.h> - -void bootblock_soc_init(void) -{ - uint32_t sctlr; - - /* enable dcache */ - sctlr = read_sctlr(); - sctlr |= SCTLR_C; - write_sctlr(sctlr); -} diff --git a/src/cpu/allwinner/a10/bootblock_media.c b/src/cpu/allwinner/a10/bootblock_media.c deleted file mode 100644 index c89cac0..0000000 --- a/src/cpu/allwinner/a10/bootblock_media.c +++ /dev/null @@ -1,26 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * CBFS accessors for bootblock stage. - * - */ -#include <boot_device.h> -#include <console/console.h> - -const struct region_device *boot_device_ro(void) -{ - printk(BIOS_ERR, "Oh my! I don't know how to access CBFS yet."); - return NULL; -} diff --git a/src/cpu/allwinner/a10/cbmem.c b/src/cpu/allwinner/a10/cbmem.c deleted file mode 100644 index a4c563a3..0000000 --- a/src/cpu/allwinner/a10/cbmem.c +++ /dev/null @@ -1,26 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Provides cbmem utilities for romstage and ramstage - * - */ - -#include "ram_segs.h" -#include <cbmem.h> - -void *cbmem_top(void) -{ - return a1x_get_cbmem_top(); -} diff --git a/src/cpu/allwinner/a10/chip.h b/src/cpu/allwinner/a10/chip.h deleted file mode 100644 index af419ea..0000000 --- a/src/cpu/allwinner/a10/chip.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinnwer A10 devicetree config struct - * - */ - -#include <types.h> - -struct cpu_allwinner_a10_config { -}; diff --git a/src/cpu/allwinner/a10/clock.c b/src/cpu/allwinner/a10/clock.c deleted file mode 100644 index 9e4e93d..0000000 --- a/src/cpu/allwinner/a10/clock.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Helpers for clock control and gating on Allwinner CPUs - */ - -#include "clock.h" - -#include <device/mmio.h> -#include <console/console.h> -#include <delay.h> -#include <lib.h> - -static struct a10_ccm *const ccm = (void *)A1X_CCM_BASE; - -/** - * \brief Enable the clock source for the peripheral - * - * @param[in] periph peripheral and clock type to enable @see a1x_clken - */ -void a1x_periph_clock_enable(enum a1x_clken periph) -{ - void *addr; - u32 reg32; - - addr = (void *)A1X_CCM_BASE + (periph >> 5); - reg32 = read32(addr); - reg32 |= 1 << (periph & 0x1f); - write32(addr, reg32); -} - -/** - * \brief Disable the clock source for the peripheral - * - * @param[in] periph peripheral and clock type to disable @see a1x_clken - */ -void a1x_periph_clock_disable(enum a1x_clken periph) -{ - void *addr; - u32 reg32; - - addr = (void *)A1X_CCM_BASE + (periph >> 5); - reg32 = read32(addr); - reg32 &= ~(1 << (periph & 0x1f)); - write32(addr, reg32); -} - -/** - * \brief Configure PLL5 factors - * - * This is a low-level accessor to configure the divisors and multipliers of - * PLL5. PLL5 uses two factors to multiply the 24MHz oscillator clock to - * generate a pre-clock. The pre-divided clock is then divided by one of two - * independent divisors, one for DRAM, and another for peripherals clocked from - * this PLL. If the PLL was previously disabled, this function will enable it. - * Other than that, this function only modifies these factors, and leaves the - * other settings unchanged. - * - * The output clocks are given by the following formulas: - * - * Pre-clock = (24 MHz * N * K) <- Must be between 240MHz and 2GHz - * DRAM clock = pre / M - * Other module = pre / P - * - * It is the caller's responsibility to make sure the pre-divided clock falls - * within the operational range of the PLL, and that the divisors and - * multipliers are within their ranges. - * - * @param[in] mul_n Multiplier N, between 0 and 32 - * @param[in] mul_k Multiplier K, between 1 and 4 - * @param[in] div_m DRAM clock divisor, between 1 and 4 - * @param[in] exp_div_p Peripheral clock divisor exponent, between 0 and 3 - * (P = 1/2/4/8, respectively) - */ -void a1x_pll5_configure(u8 mul_n, u8 mul_k, u8 div_m, u8 exp_div_p) -{ - u32 reg32; - - reg32 = read32(&ccm->pll5_cfg); - reg32 &= ~(PLL5_FACTOR_M_MASK | PLL5_FACTOR_N_MASK | - PLL5_FACTOR_K_MASK | PLL5_DIV_EXP_P_MASK); - /* The M1 factor is not documented in the datasheet, and the reference - * raminit code does not use it. Whether this is a fractional divisor, - * or an additional divisor is unknown, so don't use it for now */ - reg32 &= ~PLL5_FACTOR_M1_MASK; - reg32 |= (PLL5_FACTOR_M(div_m) | PLL5_FACTOR_N(mul_n) | - PLL5_FACTOR_K(mul_k) | PLL5_DIV_EXP_P(exp_div_p)); - reg32 |= PLL5_PLL_ENABLE; - write32(&ccm->pll5_cfg, reg32); -} - -/** - * \brief Enable the clock output to DRAM chips - * - * This enables the DRAM clock to be sent to DRAM chips. This should normally be - * done after PLL5 is configured and locked. Note that the clock may be gated, - * and also needs to be ungated in order to reach the DDR chips. - * Also see @ref clock_ungate_dram_clk_output - */ -void a1x_pll5_enable_dram_clock_output(void) -{ - setbits_le32(&ccm->pll5_cfg, PLL5_DDR_CLK_OUT_EN); -} - -/** - * \brief Ungate the clock to DRAM chips - * - * Although the DRAM clock output may be enabled, it is by default gated. It - * needs to be ungated before reaching DRAM. - */ -void a1x_ungate_dram_clock_output(void) -{ - setbits_le32(&ccm->dram_clk_cfg, DRAM_CTRL_DCLK_OUT); -} - -/** - * \brief Gate the clock to DRAM chips - * - * Disable the clock to DRAM without altering PLL configuration, by closing the - * DRAM clock gate. - */ -void a1x_gate_dram_clock_output(void) -{ - clrbits_le32(&ccm->dram_clk_cfg, DRAM_CTRL_DCLK_OUT); -} - -/* - * Linker doesn't garbage collect and the function below adds about half - * kilobyte to the bootblock, and log2_ceil is not available in the bootblock. - */ -#ifndef __BOOTBLOCK__ - -#define PLL1_CFG(N, K, M, P_EXP) \ - ((1 << 31 | 0 << 30 | 8 << 26 | 0 << 25 | 16 << 20 | 2 << 13) | \ - (P_EXP) << 16 | (N) << 8 | \ - (K - 1) << 4 | 0 << 3 | 0 << 2 | (M -1) << 0) - -static const struct { - u32 pll1_cfg; - u16 freq_mhz; -} pll1_table[] = { - /* PLL1 output = (24MHz * N * K) / (M * P) */ - { PLL1_CFG(16, 1, 1, 0), 384 }, - { PLL1_CFG(16, 2, 1, 0), 768 }, - { PLL1_CFG(20, 2, 1, 0), 960 }, - { PLL1_CFG(21, 2, 1, 0), 1008 }, - { PLL1_CFG(22, 2, 1, 0), 1056 }, - { PLL1_CFG(23, 2, 1, 0), 1104 }, - { PLL1_CFG(24, 2, 1, 0), 1152 }, - { PLL1_CFG(25, 2, 1, 0), 1200 }, - { PLL1_CFG(26, 2, 1, 0), 1248 }, - { PLL1_CFG(27, 2, 1, 0), 1296 }, - { PLL1_CFG(28, 2, 1, 0), 1344 }, - { PLL1_CFG(29, 2, 1, 0), 1392 }, - { PLL1_CFG(30, 2, 1, 0), 1440 }, - { PLL1_CFG(31, 2, 1, 0), 1488 }, - { PLL1_CFG(20, 4, 1, 0), 1944 }, -}; - -static void cpu_clk_src_switch(u32 clksel_bits) -{ - u32 reg32; - - reg32 = read32(&ccm->cpu_ahb_apb0_cfg); - reg32 &= ~CPU_CLK_SRC_MASK; - reg32 |= clksel_bits & CPU_CLK_SRC_MASK; - write32(&ccm->cpu_ahb_apb0_cfg, reg32); -} - -static void change_sys_divisors(u8 axi, u8 ahb_exp, u8 apb0_exp) -{ - u32 reg32; - - reg32 = read32(&ccm->cpu_ahb_apb0_cfg); - /* Not a typo: We want to keep only the CLK_SRC bits */ - reg32 &= CPU_CLK_SRC_MASK; - reg32 |= ((axi - 1) << 0) & AXI_DIV_MASK; - reg32 |= (ahb_exp << 4) & AHB_DIV_MASK; - reg32 |= (apb0_exp << 8) & APB0_DIV_MASK; - write32(&ccm->cpu_ahb_apb0_cfg, reg32); -} - -static void spin_delay(u32 loops) -{ - volatile u32 x = loops; - while (x--); -} - -/** - * \brief Configure the CPU clock and PLL1 - * - * To run at full speed, the CPU uses PLL1 as the clock source. AXI, AHB, and - * APB0 are derived from the CPU clock, and need to be kept within certain - * limits. This function configures PLL1 as close as possible to the desired - * frequency, based on a set of known working configurations for PLL1. It then - * calculates and applies the appropriate divisors for the AXI/AHB/APB0 clocks, - * before finally switching the CPU to run from the new clock. - * No further configuration of the CPU clock or divisors is needed. after - * calling this function. - * - * @param[in] cpu_clk_mhz Desired CPU clock, in MHz - */ -void a1x_set_cpu_clock(u16 cpu_clk_mhz) -{ - int i = 0; - u8 axi, ahb, ahb_exp, apb0, apb0_exp; - u32 actual_mhz; - - /* - * Rated clock for PLL1 is 2000 MHz, but there is no combination of - * parameters that yields that exact frequency. 1944 MHz is the highest. - */ - if (cpu_clk_mhz > 1944) { - printk(BIOS_CRIT, "BUG! maximum PLL1 clock is 1944 MHz," - "but asked to clock CPU at %d MHz\n", - cpu_clk_mhz); - cpu_clk_mhz = 1944; - } - /* Find target frequency */ - while (pll1_table[i].freq_mhz < cpu_clk_mhz) - i++; - - actual_mhz = pll1_table[i].freq_mhz; - - if (cpu_clk_mhz != actual_mhz) { - printk(BIOS_WARNING, "Parameters for %d MHz not available, " - "setting CPU clock at %d MHz\n", - cpu_clk_mhz, actual_mhz); - } - - /* - * Calculate system clock divisors: - * The minimum clock divisor for APB0 is 2, which guarantees that AHB0 - * will always be in spec, as long as AHB is in spec, although the max - * AHB0 clock we can get is 125 MHz - */ - axi = DIV_ROUND_UP(actual_mhz, 450); /* Max 450 MHz */ - ahb = DIV_ROUND_UP(actual_mhz/axi, 250); /* Max 250 MHz */ - apb0 = 2; /* Max 150 MHz */ - - ahb_exp = log2_ceil(ahb); - ahb = 1 << ahb_exp; - apb0_exp = 1; - - printk(BIOS_INFO, "CPU: %d MHz, AXI %d Mhz, AHB: %d MHz APB0: %d MHz\n", - actual_mhz, - actual_mhz / axi, - actual_mhz / (axi * ahb), - actual_mhz / (axi * ahb * apb0)); - - /* Keep the CPU off PLL1 while we change PLL parameters */ - cpu_clk_src_switch(CPU_CLK_SRC_OSC24M); - /* - * We can't use udelay() here. udelay() relies on timer 0, but timers - * have the habit of not ticking when the CPU is clocked from the main - * oscillator. - */ - spin_delay(8); - - change_sys_divisors(axi, ahb_exp, apb0_exp); - - /* Configure PLL1 at the desired frequency */ - write32(&ccm->pll1_cfg, pll1_table[i].pll1_cfg); - spin_delay(8); - - cpu_clk_src_switch(CPU_CLK_SRC_PLL1); - /* Here, we're running from PLL, so timers will tick */ - udelay(1); -} - -#endif /* __BOOTBLOCK__ */ diff --git a/src/cpu/allwinner/a10/clock.h b/src/cpu/allwinner/a10/clock.h deleted file mode 100644 index 110a6f8..0000000 --- a/src/cpu/allwinner/a10/clock.h +++ /dev/null @@ -1,283 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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. or (at your option) - * any later version. - * - * 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. - * - * Definitions for clock control and gating on Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_CLOCK_H -#define CPU_ALLWINNER_A10_CLOCK_H - -#include "memmap.h" -#include <types.h> - -/* CPU_AHB_APB0 config values */ -#define CPU_CLK_SRC_MASK (3 << 16) -#define CPU_CLK_SRC_OSC24M (1 << 16) -#define CPU_CLK_SRC_PLL1 (2 << 16) -#define APB0_DIV_MASK (3 << 8) -#define APB0_DIV_1 (0 << 8) -#define APB0_DIV_2 (1 << 8) -#define APB0_DIV_4 (2 << 8) -#define APB0_DIV_8 (3 << 8) -#define AHB_DIV_MASK (3 << 4) -#define AHB_DIV_1 (0 << 4) -#define AHB_DIV_2 (1 << 4) -#define AHB_DIV_4 (2 << 4) -#define AHB_DIV_8 (3 << 4) -#define AXI_DIV_MASK (3 << 0) -#define AXI_DIV_1 (0 << 0) -#define AXI_DIV_2 (1 << 0) -#define AXI_DIV_3 (2 << 0) -#define AXI_DIV_4 (3 << 0) - -/* APB1_CLK_DIV values */ -#define APB1_CLK_SRC_MASK (3 << 24) -#define APB1_CLK_SRC_OSC24M (0 << 24) -#define APB1_CLK_SRC_PLL6 (1 << 24) -#define APB1_CLK_SRC_32K (2 << 24) -#define APB1_RAT_N_MASK (3 << 16) -#define APB1_RAT_N(m) (((m) & 0x3) << 16) -#define APB1_RAT_M_MASK (0x1f << 0) -#define APB1_RAT_M(n) (((n) & 0x1f) << 0) - -/* PLL5_CFG values */ -#define PLL5_PLL_ENABLE (1 << 31) -#define PLL5_OUT_BYPASS_EN (1 << 30) -#define PLL5_DDR_CLK_OUT_EN (1 << 29) -#define PLL5_DIV_EXP_P_MASK (0x3 << 16) -#define PLL5_DIV_EXP_P(ep) ((ep << 16) & PLL5_DIV_EXP_P_MASK) -#define PLL5_DIV_P_1 (0x0 << 16) -#define PLL5_DIV_P_2 (0x1 << 16) -#define PLL5_DIV_P_4 (0x2 << 16) -#define PLL5_DIV_P_8 (0x3 << 16) -#define PLL5_FACTOR_N_MASK (0x1f << 8) -#define PLL5_FACTOR_N(n) ((n << 8) & PLL5_FACTOR_N_MASK) -#define PLL5_LDO_EN (1 << 7) -#define PLL5_FACTOR_K_MASK (0x3 << 4) -#define PLL5_FACTOR_K(k) ((((k) - 1) << 4) & PLL5_FACTOR_K_MASK) -#define PLL5_FACTOR_M1_MASK (0x3 << 2) -#define PLL5_FACTOR_M1(m1) (((m1) << 2) & PLL5_FACTOR_M1_MASK) -#define PLL5_FACTOR_M_MASK (0x3 << 0) -#define PLL5_FACTOR_M(m) ((((m) - 1) << 0) & PLL5_FACTOR_M_MASK) - -/* DRAM_CLK values*/ -#define DRAM_CTRL_DCLK_OUT (1 << 15) - -/* SDx_CLK values */ -#define SDx_CLK_GATE (1 << 31) -#define SDx_CLK_SRC_MASK (3 << 24) -#define SDx_CLK_SRC_OSC24M (0 << 24) -#define SDx_CLK_SRC_PLL6 (1 << 24) -#define SDx_CLK_SRC_PLL5 (2 << 24) -#define SDx_RAT_EXP_N_MASK (3 << 16) -#define SDx_RAT_EXP_N(n) (((n) << 16) & SDx_RAT_EXP_N_MASK) -#define SDx_RAT_M_MASK (0xf << 0) -#define SDx_RAT_M(m) ((((m) - 1) << 0) & SDx_RAT_M_MASK) -/** - * \brief Clock gating definitions - * - * The definitions are specified in the form: - * 31:5 register offset from A1X_CCM_BASE for the clock register - * 4:0 bit offset for the given peripheral - * - * The names have the form [periph_type][periph_number] - * - * These definitions are meant to be used with @ref a1x_periph_clock_enable and - * @ref a1x_periph_clock_disable - */ - -enum a1x_clken { - /* AXI module clock gating */ - A1X_CLKEN_DRAM_AXI = (0x5C << 5), - /* AHB0 module clock gating */ - A1X_CLKEN_USB0 = (0x60 << 5), - A1X_CLKEN_EHCI0, - RSVD_0x60_2, - A1X_CLKEN_EHCI1, - RSVD_0x60_4, - A1X_CLKEN_SS, - A1X_CLKEN_DMA, - A1X_CLKEN_BIST, - A1X_CLKEN_MMC0, - A1X_CLKEN_MMC1, - A1X_CLKEN_MMC2, - A1X_CLKEN_MMC3, - A1X_CLKEN_NC, - A1X_CLKEN_NAND, - A1X_CLKEN_SDRAM, - RSVD_0x60_15, - A1X_CLKEN_ACE, - A1X_CLKEN_EMAC, - A1X_CLKEN_TS, - RSVD_0x60_19, - A1X_CLKEN_SPI0, - A1X_CLKEN_SPI1, - A1X_CLKEN_SPI2, - A1X_CLKEN_SPI3, - A1X_CLKEN_PATA, - RSVD_0x60_25, - A1X_CLKEN_GPS, - /* AHB1 module clock gating */ - A1X_CLKEN_DRAM_VE = (0x64 << 5), - A1X_CLKEN_TVD, - A1X_CLKEN_TVE0, - A1X_CLKEN_TVE1, - A1X_CLKEN_LCD0, - A1X_CLKEN_LCD1, - RSVD_0x64_6, - RSVD_0x64_7, - A1X_CLKEN_CSI0, - A1X_CLKEN_CSI1, - RSVD_0x64_10, - A1X_CLKEN_HDMI, - A1X_CLKEN_DE_BE0, - A1X_CLKEN_DE_BE1, - A1X_CLKEN_DE_FE0, - A1X_CLKEN_DE_FE1, - RSVD_0x64_16, - RSVD_0x64_17, - A1X_CLKEN_MP, - RSVD_0x64_19, - A1X_CLKEN_MALI400, - /* APB0 module clock gating */ - A1X_CLKEN_CODEC = (0x68 << 5), - A1X_CLKEN_NC_APB, - A1X_CLKEN_AC97, - A1X_CLKEN_IIS, - RSVD_0x68_4, - A1X_CLKEN_PIO, - A1X_CLKEN_IR0, - A1X_CLKEN_IR1, - RSVD_0x68_8, - RSVD_0x68_9, - A1X_CLKEN_KEYPAD, - /* APB1 module clock gating */ - A1X_CLKEN_TWI0 = (0x6C << 5), - A1X_CLKEN_TWI1, - A1X_CLKEN_TWI2, - RSVD_0x6C_3, - A1X_CLKEN_CAN, - A1X_CLKEN_SCR, - A1X_CLKEN_PS20, - A1X_CLKEN_PS21, - RSVD_0x6C_8, - RSVD_0x6C_9, - RSVD_0x6C_10, - RSVD_0x6C_11, - RSVD_0x6C_12, - RSVD_0x6C_13, - RSVD_0x6C_14, - RSVD_0x6C_15, - A1X_CLKEN_UART0, - A1X_CLKEN_UART1, - A1X_CLKEN_UART2, - A1X_CLKEN_UART3, - A1X_CLKEN_UART4, - A1X_CLKEN_UART5, - A1X_CLKEN_UART6, - A1X_CLKEN_UART7, -}; - -struct a10_ccm { - u32 pll1_cfg; /* 0x00 pll1 control */ - u32 pll1_tun; /* 0x04 pll1 tuning */ - u32 pll2_cfg; /* 0x08 pll2 control */ - u32 pll2_tun; /* 0x0c pll2 tuning */ - u32 pll3_cfg; /* 0x10 pll3 control */ - u8 res0[0x4]; - u32 pll4_cfg; /* 0x18 pll4 control */ - u8 res1[0x4]; - u32 pll5_cfg; /* 0x20 pll5 control */ - u32 pll5_tun; /* 0x24 pll5 tuning */ - u32 pll6_cfg; /* 0x28 pll6 control */ - u32 pll6_tun; /* 0x2c pll6 tuning */ - u32 pll7_cfg; /* 0x30 pll7 control */ - u32 pll1_tun2; /* 0x34 pll5 tuning2 */ - u8 res2[0x4]; - u32 pll5_tun2; /* 0x3c pll5 tuning2 */ - u8 res3[0xc]; - u32 pll_lock_dbg; /* 0x4c pll lock time debug */ - u32 osc24m_cfg; /* 0x50 osc24m control */ - u32 cpu_ahb_apb0_cfg; /* 0x54 CPU, ahb and apb0 divide ratio */ - u32 apb1_clk_div_cfg; /* 0x58 apb1 clock dividor */ - u32 axi_gate; /* 0x5c axi module clock gating */ - u32 ahb_gate0; /* 0x60 ahb module clock gating 0 */ - u32 ahb_gate1; /* 0x64 ahb module clock gating 1 */ - u32 apb0_gate; /* 0x68 apb0 module clock gating */ - u32 apb1_gate; /* 0x6c apb1 module clock gating */ - u8 res4[0x10]; - u32 nand_sclk_cfg; /* 0x80 nand sub clock control */ - u32 ms_sclk_cfg; /* 0x84 memory stick sub clock control */ - u32 sd0_clk_cfg; /* 0x88 sd0 clock control */ - u32 sd1_clk_cfg; /* 0x8c sd1 clock control */ - u32 sd2_clk_cfg; /* 0x90 sd2 clock control */ - u32 sd3_clk_cfg; /* 0x94 sd3 clock control */ - u32 ts_clk_cfg; /* 0x98 transport stream clock control */ - u32 ss_clk_cfg; /* 0x9c */ - u32 spi0_clk_cfg; /* 0xa0 */ - u32 spi1_clk_cfg; /* 0xa4 */ - u32 spi2_clk_cfg; /* 0xa8 */ - u32 pata_clk_cfg; /* 0xac */ - u32 ir0_clk_cfg; /* 0xb0 */ - u32 ir1_clk_cfg; /* 0xb4 */ - u32 iis_clk_cfg; /* 0xb8 */ - u32 ac97_clk_cfg; /* 0xbc */ - u32 spdif_clk_cfg; /* 0xc0 */ - u32 keypad_clk_cfg; /* 0xc4 */ - u32 sata_clk_cfg; /* 0xc8 */ - u32 usb_clk_cfg; /* 0xcc */ - u32 gps_clk_cfg; /* 0xd0 */ - u32 spi3_clk_cfg; /* 0xd4 */ - u8 res5[0x28]; - u32 dram_clk_cfg; /* 0x100 */ - u32 be0_clk_cfg; /* 0x104 */ - u32 be1_clk_cfg; /* 0x108 */ - u32 fe0_clk_cfg; /* 0x10c */ - u32 fe1_clk_cfg; /* 0x110 */ - u32 mp_clk_cfg; /* 0x114 */ - u32 lcd0_ch0_clk_cfg; /* 0x118 */ - u32 lcd1_ch0_clk_cfg; /* 0x11c */ - u32 csi_isp_clk_cfg; /* 0x120 */ - u8 res6[0x4]; - u32 tvd_clk_reg; /* 0x128 */ - u32 lcd0_ch1_clk_cfg; /* 0x12c */ - u32 lcd1_ch1_clk_cfg; /* 0x130 */ - u32 csi0_clk_cfg; /* 0x134 */ - u32 csi1_clk_cfg; /* 0x138 */ - u32 ve_clk_cfg; /* 0x13c */ - u32 audio_codec_clk_cfg; /* 0x140 */ - u32 avs_clk_cfg; /* 0x144 */ - u32 ace_clk_cfg; /* 0x148 */ - u32 lvds_clk_cfg; /* 0x14c */ - u32 hdmi_clk_cfg; /* 0x150 */ - u32 mali_clk_cfg; /* 0x154 */ - u8 res7[0x4]; - u32 mbus_clk_cfg; /* 0x15c */ -} __packed; - -void a1x_periph_clock_enable(enum a1x_clken periph); -void a1x_periph_clock_disable(enum a1x_clken periph); - -void a1x_pll5_configure(u8 mul_n, u8 mul_k, u8 div_m, u8 exp_div_p); -void a1x_pll5_enable_dram_clock_output(void); -void a1x_ungate_dram_clock_output(void); -void a1x_gate_dram_clock_output(void); - -/* Not available in bootblock */ -void a1x_set_cpu_clock(u16 cpu_clk_mhz); - -#endif /* CPU_ALLWINNER_A10_CLOCK_H */ diff --git a/src/cpu/allwinner/a10/cpu.c b/src/cpu/allwinner/a10/cpu.c deleted file mode 100644 index 09f6766..0000000 --- a/src/cpu/allwinner/a10/cpu.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Ramstage initialization for Allwinner CPUs - * - */ - -#include <device/device.h> -#include <symbols.h> - -static void cpu_enable_resources(struct device *dev) -{ - ram_resource(dev, 0, (uintptr_t)_dram/KiB, - CONFIG_DRAM_SIZE_MB << 10); - /* TODO: Declare CBFS cache as reserved? There's no guarantee we won't - * overwrite it. It seems to stay intact, being so high in RAM - */ -} - -static void cpu_init(struct device *dev) -{ - /* TODO: Check if anything else needs to be explicitly initialized */ -} - -static struct device_operations cpu_ops = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = cpu_enable_resources, - .init = cpu_init, - .scan_bus = NULL, -}; - -static void a1x_cpu_enable_dev(struct device *dev) -{ - dev->ops = &cpu_ops; -} - -struct chip_operations cpu_allwinner_a10_ops = { - CHIP_NAME("CPU Allwinner A10") - .enable_dev = a1x_cpu_enable_dev, -}; diff --git a/src/cpu/allwinner/a10/dramc.h b/src/cpu/allwinner/a10/dramc.h deleted file mode 100644 index fe50acd..0000000 --- a/src/cpu/allwinner/a10/dramc.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2012 Allwinner Technology Co., Ltd. - * Berg Xing bergxing@allwinnertech.com - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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.or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 platform dram register definition. - * - * Based on sun4i Linux kernel sources mach-sunxi/pm/standby/dram*.c - * and earlier U-Boot Allwiner A10 SPL work - */ - -#ifndef CPU_ALLWINNER_A10_DRAMC_H -#define CPU_ALLWINNER_A10_DRAMC_H - -#include <types.h> - -#define DRAM_CCR_COMMAND_RATE_1T (0x1 << 5) -#define DRAM_CCR_DQS_GATE (0x1 << 14) -#define DRAM_CCR_DQS_DRIFT_COMP (0x1 << 17) -#define DRAM_CCR_ITM_OFF (0x1 << 28) -#define DRAM_CCR_DATA_TRAINING (0x1 << 30) -#define DRAM_CCR_INIT (0x1 << 31) - -#define DRAM_MEMORY_TYPE_DDR1 1 -#define DRAM_MEMORY_TYPE_DDR2 2 -#define DRAM_MEMORY_TYPE_DDR3 3 -#define DRAM_MEMORY_TYPE_LPDDR2 4 -#define DRAM_MEMORY_TYPE_LPDDR 5 -#define DRAM_DCR_TYPE (0x1 << 0) -#define DRAM_DCR_TYPE_DDR2 0x0 -#define DRAM_DCR_TYPE_DDR3 0x1 -#define DRAM_DCR_IO_WIDTH(n) (((n) & 0x3) << 1) -#define DRAM_DCR_IO_WIDTH_MASK DRAM_DCR_IO_WIDTH(0x3) -#define DRAM_DCR_IO_WIDTH_8BIT 0x0 -#define DRAM_DCR_IO_WIDTH_16BIT 0x1 -#define DRAM_DCR_CHIP_DENSITY(n) (((n) & 0x7) << 3) -#define DRAM_DCR_CHIP_DENSITY_MASK DRAM_DCR_CHIP_DENSITY(0x7) -#define DRAM_DCR_CHIP_DENSITY_256M 0x0 -#define DRAM_DCR_CHIP_DENSITY_512M 0x1 -#define DRAM_DCR_CHIP_DENSITY_1024M 0x2 -#define DRAM_DCR_CHIP_DENSITY_2048M 0x3 -#define DRAM_DCR_CHIP_DENSITY_4096M 0x4 -#define DRAM_DCR_CHIP_DENSITY_8192M 0x5 -#define DRAM_DCR_BUS_WIDTH(n) (((n) & 0x7) << 6) -#define DRAM_DCR_BUS_WIDTH_MASK DRAM_DCR_BUS_WIDTH(0x7) -#define DRAM_DCR_BUS_WIDTH_32BIT 0x3 -#define DRAM_DCR_BUS_WIDTH_16BIT 0x1 -#define DRAM_DCR_BUS_WIDTH_8BIT 0x0 -#define DRAM_DCR_NR_DLLCR_32BIT 5 -#define DRAM_DCR_NR_DLLCR_16BIT 3 -#define DRAM_DCR_NR_DLLCR_8BIT 2 -#define DRAM_DCR_RANK_SEL(n) (((n) & 0x3) << 10) -#define DRAM_DCR_RANK_SEL_MASK DRAM_DCR_CMD_RANK(0x3) -#define DRAM_DCR_CMD_RANK_ALL (0x1 << 12) -#define DRAM_DCR_MODE(n) (((n) & 0x3) << 13) -#define DRAM_DCR_MODE_MASK DRAM_DCR_MODE(0x3) -#define DRAM_DCR_MODE_SEQ 0x0 -#define DRAM_DCR_MODE_INTERLEAVE 0x1 - -#define DRAM_CSR_FAILED (0x1 << 20) - -#define DRAM_MCR_MODE_NORM(n) (((n) & 0x3) << 0) -#define DRAM_MCR_MODE_NORM_MASK DRAM_MCR_MOD_NORM(0x3) -#define DRAM_MCR_MODE_DQ_OUT(n) (((n) & 0x3) << 2) -#define DRAM_MCR_MODE_DQ_OUT_MASK DRAM_MCR_MODE_DQ_OUT(0x3) -#define DRAM_MCR_MODE_ADDR_OUT(n) (((n) & 0x3) << 4) -#define DRAM_MCR_MODE_ADDR_OUT_MASK DRAM_MCR_MODE_ADDR_OUT(0x3) -#define DRAM_MCR_MODE_DQ_IN_OUT(n) (((n) & 0x3) << 6) -#define DRAM_MCR_MODE_DQ_IN_OUT_MASK DRAM_MCR_MODE_DQ_IN_OUT(0x3) -#define DRAM_MCR_MODE_DQ_TURNON_DELAY(n) (((n) & 0x7) << 8) -#define DRAM_MCR_MODE_DQ_TURNON_DELAY_MASK DRAM_MCR_MODE_DQ_TURNON_DELAY(0x7) -#define DRAM_MCR_MODE_ADDR_IN (0x1 << 11) -#define DRAM_MCR_RESET (0x1 << 12) -#define DRAM_MCR_MODE_EN(n) (((n) & 0x3) << 13) -#define DRAM_MCR_MODE_EN_MASK DRAM_MCR_MOD_EN(0x3) -#define DRAM_MCR_DCLK_OUT (0x1 << 16) - -#define DRAM_DLLCR_NRESET (0x1 << 30) -#define DRAM_DLLCR_DISABLE (0x1 << 31) - -#define DRAM_ZQCR0_IMP_DIV(n) (((n) & 0xff) << 20) -#define DRAM_ZQCR0_IMP_DIV_MASK DRAM_ZQCR0_IMP_DIV(0xff) - -#define DRAM_IOCR_ODT_EN(n) ((((n) & 0x3) << 30) | ((n) & 0x3) << 0) -#define DRAM_IOCR_ODT_EN_MASK DRAM_IOCR_ODT_EN(0x3) - -#define DRAM_MR_BURST_LENGTH(n) (((n) & 0x7) << 0) -#define DRAM_MR_BURST_LENGTH_MASK DRAM_MR_BURST_LENGTH(0x7) -#define DRAM_MR_CAS_LAT(n) (((n) & 0x7) << 4) -#define DRAM_MR_CAS_LAT_MASK DRAM_MR_CAS_LAT(0x7) -#define DRAM_MR_WRITE_RECOVERY(n) (((n) & 0x7) << 9) -#define DRAM_MR_WRITE_RECOVERY_MASK DRAM_MR_WRITE_RECOVERY(0x7) -#define DRAM_MR_POWER_DOWN (0x1 << 12) - -#define DRAM_CSEL_MAGIC 0x16237495 - -struct a1x_dramc { - u32 ccr; /* 0x00 controller configuration register */ - u32 dcr; /* 0x04 dram configuration register */ - u32 iocr; /* 0x08 i/o configuration register */ - u32 csr; /* 0x0c controller status register */ - u32 drr; /* 0x10 dram refresh register */ - u32 tpr0; /* 0x14 dram timing parameters register 0 */ - u32 tpr1; /* 0x18 dram timing parameters register 1 */ - u32 tpr2; /* 0x1c dram timing parameters register 2 */ - u32 gdllcr; /* 0x20 global dll control register */ - u8 res0[0x28]; - u32 rslr0; /* 0x4c rank system latency register */ - u32 rslr1; /* 0x50 rank system latency register */ - u8 res1[0x8]; - u32 rdgr0; /* 0x5c rank dqs gating register */ - u32 rdgr1; /* 0x60 rank dqs gating register */ - u8 res2[0x34]; - u32 odtcr; /* 0x98 odt configuration register */ - u32 dtr0; /* 0x9c data training register 0 */ - u32 dtr1; /* 0xa0 data training register 1 */ - u32 dtar; /* 0xa4 data training address register */ - u32 zqcr0; /* 0xa8 zq control register 0 */ - u32 zqcr1; /* 0xac zq control register 1 */ - u32 zqsr; /* 0xb0 zq status register */ - u32 idcr; /* 0xb4 initializaton delay configure reg */ - u8 res3[0x138]; - u32 mr; /* 0x1f0 mode register */ - u32 emr; /* 0x1f4 extended mode register */ - u32 emr2; /* 0x1f8 extended mode register */ - u32 emr3; /* 0x1fc extended mode register */ - u32 dllctr; /* 0x200 dll control register */ - u32 dllcr[5]; /* 0x204 dll control register 0(byte 0) */ - /* 0x208 dll control register 1(byte 1) */ - /* 0x20c dll control register 2(byte 2) */ - /* 0x210 dll control register 3(byte 3) */ - /* 0x214 dll control register 4(byte 4) */ - u32 dqtr0; /* 0x218 dq timing register */ - u32 dqtr1; /* 0x21c dq timing register */ - u32 dqtr2; /* 0x220 dq timing register */ - u32 dqtr3; /* 0x224 dq timing register */ - u32 dqstr; /* 0x228 dqs timing register */ - u32 dqsbtr; /* 0x22c dqsb timing register */ - u32 mcr; /* 0x230 mode configure register */ - u8 res[0x8]; - u32 ppwrsctl; /* 0x23c pad power save control */ - u32 apr; /* 0x240 arbiter period register */ - u32 pldtr; /* 0x244 priority level data threshold reg */ - u8 res5[0x8]; - u32 hpcr[32]; /* 0x250 host port configure register */ - u8 res6[0x10]; - u32 csel; /* 0x2e0 controller select register */ -}; - -struct dram_para { - u32 clock; - u32 type; - u32 rank_num; - u32 density; - u32 io_width; - u32 bus_width; - u32 cas; - u32 zq; - u32 odt_en; - u32 size; - u32 tpr0; - u32 tpr1; - u32 tpr2; - u32 tpr3; - u32 tpr4; - u32 tpr5; - u32 emr1; - u32 emr2; - u32 emr3; -}; - -unsigned long dramc_init(struct dram_para *para); - -#endif /* CPU_ALLWINNER_A10_DRAMC_H */ diff --git a/src/cpu/allwinner/a10/gpio.c b/src/cpu/allwinner/a10/gpio.c deleted file mode 100644 index 7f6bbd8..0000000 --- a/src/cpu/allwinner/a10/gpio.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Basic GPIO helpers for Allwinner CPUs - */ - -#include "gpio.h" - -#include <device/mmio.h> - -static struct a10_gpio *const gpio = (void *)GPIO_BASE; - -/** - * \brief Set a single output pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - */ -void gpio_set(u8 port, u8 pin) -{ - u32 reg32; - - if ((port > GPS)) - return; - - reg32 = gpio_read(port); - reg32 |= (1 << pin); - gpio_write(port, reg32); -} - -/** - * \brief Clear a single output pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - */ -void gpio_clear(u8 port, u8 pin) -{ - u32 reg32; - if ((port > GPS)) - return; - - reg32 = gpio_read(port); - reg32 &= ~(1 << pin); - gpio_write(port, reg32); -} - -/** - * \brief Get the status of a single input pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - * @return 1 if the pin is high, or 0 if the pin is low - */ -int gpio_get(u8 port, u8 pin) -{ - if ((port > GPS)) - return 0; - - return (gpio_read(port) & (1 << pin)) ? 1 : 0; -} - -/** - * \brief Write to a GPIO port - * - * Write the state of all output pins in the GPIO port. This only affects pins - * configured as output pins. - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] val 32-bit mask indicating which pins to set. For a set bit, the - * corresponding pin will be set. Otherwise, it will be cleared - */ -void gpio_write(u8 port, u32 val) -{ - if ((port > GPS)) - return; - - write32(&gpio->port[port].dat, val); -} - -/** - * \brief Write to a GPIO port - * - * Read the state of all input pins in the GPIO port. - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @return 32-bit mask indicating which pins are high. For each set bit, the - * corresponding pin is high. The value of bits corresponding to pins - * which are not configured as inputs is undefined. - */ -u32 gpio_read(u8 port) -{ - if ((port > GPS)) - return 0; - - return read32(&gpio->port[port].dat); -} diff --git a/src/cpu/allwinner/a10/gpio.h b/src/cpu/allwinner/a10/gpio.h deleted file mode 100644 index c05122f..0000000 --- a/src/cpu/allwinner/a10/gpio.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions for GPIO and pin multiplexing on Allwinner CPUs - */ - -#ifndef __CPU_ALLWINNER_A10_PINMUX_H -#define __CPU_ALLWINNER_A10_PINMUX_H - -#include <types.h> - -#define GPIO_BASE 0x01C20800 - -#define GPA 0 -#define GPB 1 -#define GPC 2 -#define GPD 3 -#define GPE 4 -#define GPF 5 -#define GPG 6 -#define GPH 7 -#define GPI 8 -#define GPS 9 - -/* GPIO pad functions valid for all pins */ -#define GPIO_PIN_FUNC_INPUT 0 -#define GPIO_PIN_FUNC_OUTPUT 1 - -struct a10_gpio_port { - u32 cfg[4]; - u32 dat; - u32 drv[2]; - u32 pul[2]; -} __packed; - -struct a10_gpio { - struct a10_gpio_port port[10]; - u8 reserved_0x168[0x98]; - - /* Offset 0x200 */ - u32 int_cfg[4]; - - u32 int_ctl; - u32 int_sta; - u8 reserved_0x21C[4]; - u32 int_deb; - - u32 sdr_pad_drv; - u32 sdr_pad_pul; -} __packed; - -/* gpio.c */ -void gpio_set(u8 port, u8 pin); -void gpio_clear(u8 port, u8 pin); -int gpio_get(u8 port, u8 pin); -void gpio_write(u8 port, u32 val); -u32 gpio_read(u8 port); - -/* pinmux.c */ -void gpio_set_pin_func(u8 port, u8 pin, u8 pad_func); -void gpio_set_multipin_func(u8 port, u32 pin_mask, u8 pad_func); - -#endif /* __CPU_ALLWINNER_A10_PINMUX_H */ diff --git a/src/cpu/allwinner/a10/memmap.h b/src/cpu/allwinner/a10/memmap.h deleted file mode 100644 index 2c02ec8..0000000 --- a/src/cpu/allwinner/a10/memmap.h +++ /dev/null @@ -1,128 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Memory map definitions for Allwinner A10 CPUs - */ - -#ifndef CPU_ALLWINNER_A10_MEMMAP_H -#define CPU_ALLWINNER_A10_MEMMAP_H - -#define A1X_SRAM_A1_BASE 0x00000000 -#define A1X_SRAM_A1_SIZE (16 * 1024) /* 16 kiB */ - -#define A1X_SRAM_A2_BASE 0x00004000 /* 16 kiB */ -#define A1X_SRAM_A3_BASE 0x00008000 /* 13 kiB */ -#define A1X_SRAM_A4_BASE 0x0000b400 /* 3 kiB */ -#define A1X_SRAM_D_BASE 0x01c00000 -#define A1X_SRAM_B_BASE 0x01c00000 /* 64 kiB (secure) */ - -#define A1X_SRAMC_BASE 0x01c00000 -#define A1X_DRAMC_BASE 0x01c01000 -#define A1X_DMA_BASE 0x01c02000 -#define A1X_NFC_BASE 0x01c03000 -#define A1X_TS_BASE 0x01c04000 -#define A1X_SPI0_BASE 0x01c05000 -#define A1X_SPI1_BASE 0x01c06000 -#define A1X_MS_BASE 0x01c07000 -#define A1X_TVD_BASE 0x01c08000 -#define A1X_CSI0_BASE 0x01c09000 -#define A1X_TVE0_BASE 0x01c0a000 -#define A1X_EMAC_BASE 0x01c0b000 -#define A1X_LCD0_BASE 0x01c0C000 -#define A1X_LCD1_BASE 0x01c0d000 -#define A1X_VE_BASE 0x01c0e000 -#define A1X_MMC0_BASE 0x01c0f000 -#define A1X_MMC1_BASE 0x01c10000 -#define A1X_MMC2_BASE 0x01c11000 -#define A1X_MMC3_BASE 0x01c12000 -#define A1X_USB0_BASE 0x01c13000 -#define A1X_USB1_BASE 0x01c14000 -#define A1X_SS_BASE 0x01c15000 -#define A1X_HDMI_BASE 0x01c16000 -#define A1X_SPI2_BASE 0x01c17000 -#define A1X_SATA_BASE 0x01c18000 -#define A1X_PATA_BASE 0x01c19000 -#define A1X_ACE_BASE 0x01c1a000 -#define A1X_TVE1_BASE 0x01c1b000 -#define A1X_USB2_BASE 0x01c1c000 -#define A1X_CSI1_BASE 0x01c1d000 -#define A1X_TZASC_BASE 0x01c1e000 -#define A1X_SPI3_BASE 0x01c1f000 - -#define A1X_CCM_BASE 0x01c20000 -#define A1X_INTC_BASE 0x01c20400 -#define A1X_PIO_BASE 0x01c20800 -#define A1X_TIMER_BASE 0x01c20c00 -#define A1X_SPDIF_BASE 0x01c21000 -#define A1X_AC97_BASE 0x01c21400 -#define A1X_IR0_BASE 0x01c21800 -#define A1X_IR1_BASE 0x01c21c00 - -#define A1X_IIS_BASE 0x01c22400 -#define A1X_LRADC_BASE 0x01c22800 -#define A1X_AD_DA_BASE 0x01c22c00 -#define A1X_KEYPAD_BASE 0x01c23000 -#define A1X_TZPC_BASE 0x01c23400 -#define A1X_SID_BASE 0x01c23800 -#define A1X_SJTAG_BASE 0x01c23c00 - -#define A1X_TP_BASE 0x01c25000 -#define A1X_PMU_BASE 0x01c25400 -#define A1X_CPUCFG_BASE 0x01c25c00 /* sun7i only ? */ - -#define A1X_UART0_BASE 0x01c28000 -#define A1X_UART1_BASE 0x01c28400 -#define A1X_UART2_BASE 0x01c28800 -#define A1X_UART3_BASE 0x01c28c00 -#define A1X_UART4_BASE 0x01c29000 -#define A1X_UART5_BASE 0x01c29400 -#define A1X_UART6_BASE 0x01c29800 -#define A1X_UART7_BASE 0x01c29c00 -#define A1X_PS2_0_BASE 0x01c2a000 -#define A1X_PS2_1_BASE 0x01c2a400 - -#define A1X_TWI0_BASE 0x01c2ac00 -#define A1X_TWI1_BASE 0x01c2b000 -#define A1X_TWI2_BASE 0x01c2b400 - -#define A1X_CAN_BASE 0x01c2bc00 - -#define A1X_SCR_BASE 0x01c2c400 - -#define A1X_GPS_BASE 0x01c30000 -#define A1X_MALI400_BASE 0x01c40000 - -/* module sram */ -#define A1X_SRAM_C_BASE 0x01d00000 - -#define A1X_DE_FE0_BASE 0x01e00000 -#define A1X_DE_FE1_BASE 0x01e20000 -#define A1X_DE_BE0_BASE 0x01e60000 -#define A1X_DE_BE1_BASE 0x01e40000 -#define A1X_MP_BASE 0x01e80000 -#define A1X_AVG_BASE 0x01ea0000 - -/* CoreSight Debug Module */ -#define A1X_CSDM_BASE 0x3f500000 - -#define A1X_DRAM_BASE 0x40000000 /* 2 GiB */ - -#define A1X_BROM_BASE 0xffff0000 /* 32 kiB */ - -#define A1X_CPU_CFG (A1X_TIMER_BASE + 0x13c) - -#endif /* CPU_ALLWINNER_A10_MEMMAP_H */ diff --git a/src/cpu/allwinner/a10/pinmux.c b/src/cpu/allwinner/a10/pinmux.c deleted file mode 100644 index 3415e4f..0000000 --- a/src/cpu/allwinner/a10/pinmux.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * - * Helpers to multiplex and configure pins on Allwinner SoCs - * - */ - -#include "gpio.h" - -#include <device/mmio.h> - -static struct a10_gpio *const gpio = (void *)GPIO_BASE; - -/** - * \brief Set the pad function of a single pin - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin the pin number in the given port (1 -> 31) - * @param[in] pad_func The peripheral function to which to connect this pin - */ -void gpio_set_pin_func(u8 port, u8 pin, u8 pad_func) -{ - u8 reg, bit; - u32 reg32; - - if ((port > GPS)) - return; - - pin &= 0x1f; - reg = pin / 8; - bit = (pin % 8) * 4; - - reg32 = read32(&gpio->port[port].cfg[reg]); - reg32 &= ~(0xf << bit); - reg32 |= (pad_func & 0xf) << bit; - write32(&gpio->port[port].cfg[reg], reg32); -} - -/** - * \brief Set the pad function of a group of pins - * - * Multiplex a group of pins to the same pad function. This is useful for - * peripherals that use the same function number for several pins. This function - * allows those pins to be set with a single call. - * - * Example: - * gpio_set_multipin_func(GPB, (1 << 23) | (1 << 22), 2); - * - * @param[in] port GPIO port of the pin (GPA -> GPS) - * @param[in] pin_mask 32-bit mask indicating which pins to re-multiplex. For - * each set bit, the corresponding pin will be multiplexed. - * @param[in] pad_func The peripheral function to which to connect the pins - */ -void gpio_set_multipin_func(u8 port, u32 pin_mask, u8 pad_func) -{ - int j; - u8 reg, bit; - u32 reg32, mask_offset; - - if ((port > GPS)) - return; - - for (reg = 0; reg < 4; reg++) { - mask_offset = 8 * reg; - /* Don't run the inner loop if we're not touching any pins */ - if (!(pin_mask & (0xff << mask_offset))) - continue; - - reg32 = read32(&gpio->port[port].cfg[reg]); - for (j = 0; j < 8; j++) { - if (!(pin_mask & (1 << (j + mask_offset)))) - continue; - bit = j * 4; - reg32 &= ~(0xf << bit); - reg32 |= (pad_func & 0xf) << bit; - } - write32(&gpio->port[port].cfg[reg], reg32); - } -} diff --git a/src/cpu/allwinner/a10/ram_segs.h b/src/cpu/allwinner/a10/ram_segs.h deleted file mode 100644 index fa915cd..0000000 --- a/src/cpu/allwinner/a10/ram_segs.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * - * How we use DRAM on Allwinner CPUs - */ - -#include <symbols.h> - -/* - * Put CBMEM at top of RAM - */ -static inline void *a1x_get_cbmem_top(void) -{ - return _dram + (CONFIG_DRAM_SIZE_MB << 20); -} - -/* - * By CBFS cache, we mean a cached copy, in RAM, of the entire CBFS region. - */ -static inline void *a1x_get_cbfs_cache_top(void) -{ - /* Arbitrary 16 MiB gap for cbmem tables and bouncebuffer */ - return a1x_get_cbmem_top() - (16 << 20); -} - -static inline void *a1x_get_cbfs_cache_base(void) -{ - return a1x_get_cbfs_cache_top() - CONFIG_ROM_SIZE; -} diff --git a/src/cpu/allwinner/a10/raminit.c b/src/cpu/allwinner/a10/raminit.c deleted file mode 100644 index 3c18183..0000000 --- a/src/cpu/allwinner/a10/raminit.c +++ /dev/null @@ -1,478 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Henrik Nordstrom henrik@henriknordstrom.net - * Copyright (C) 2013 Luke Kenneth Casson Leighton lkcl@lkcl.net - * Copyright (C) 2007-2012 Allwinner Technology Co., Ltd. - * Berg Xing bergxing@allwinnertech.com - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Allwinner A10 DRAM controller initialization - * - * Based on sun4i Linux kernel sources mach-sunxi/pm/standby/dram*.c - * and earlier U-Boot Allwiner A10 SPL work - */ - -#include "clock.h" -#include "dramc.h" -#include "memmap.h" -#include "timer.h" - -#include <device/mmio.h> -#include <delay.h> - -static struct a1x_dramc *const dram = (void *)A1X_DRAMC_BASE; - -static void mctl_ddr3_reset(void) -{ - if (a1x_get_cpu_chip_revision() != A1X_CHIP_REV_A) { - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(2); - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - } else { - clrbits_le32(&dram->mcr, DRAM_MCR_RESET); - udelay(2); - setbits_le32(&dram->mcr, DRAM_MCR_RESET); - } -} - -static void mctl_set_drive(void) -{ - clrsetbits_le32(&dram->mcr, DRAM_MCR_MODE_NORM(0x3), - DRAM_MCR_MODE_EN(0x3) | 0xffc); -} - -static void mctl_itm_disable(void) -{ - clrsetbits_le32(&dram->ccr, DRAM_CCR_INIT, DRAM_CCR_ITM_OFF); -} - -static void mctl_itm_enable(void) -{ - clrbits_le32(&dram->ccr, DRAM_CCR_ITM_OFF); -} - -static void mctl_enable_dll0(u32 phase) -{ - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - ((phase >> 16) & 0x3f) << 6); - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET, DRAM_DLLCR_DISABLE); - udelay(2); - - clrbits_le32(&dram->dllcr[0], DRAM_DLLCR_NRESET | DRAM_DLLCR_DISABLE); - udelay(22); - - clrsetbits_le32(&dram->dllcr[0], DRAM_DLLCR_DISABLE, DRAM_DLLCR_NRESET); - udelay(22); -} - -/* - * Note: This differs from pm/standby in that it checks the bus width - */ -static void mctl_enable_dllx(u32 phase) -{ - u32 i, n, bus_width; - - bus_width = read32(&dram->dcr); - - if ((bus_width & DRAM_DCR_BUS_WIDTH_MASK) == - DRAM_DCR_BUS_WIDTH(DRAM_DCR_BUS_WIDTH_32BIT)) - n = DRAM_DCR_NR_DLLCR_32BIT; - else - n = DRAM_DCR_NR_DLLCR_16BIT; - - for (i = 1; i < n; i++) { - clrsetbits_le32(&dram->dllcr[i], 0x4 << 14, - (phase & 0xf) << 14); - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET, - DRAM_DLLCR_DISABLE); - phase >>= 4; - } - udelay(2); - - for (i = 1; i < n; i++) - clrbits_le32(&dram->dllcr[i], DRAM_DLLCR_NRESET | - DRAM_DLLCR_DISABLE); - udelay(22); - - for (i = 1; i < n; i++) - clrsetbits_le32(&dram->dllcr[i], DRAM_DLLCR_DISABLE, - DRAM_DLLCR_NRESET); - udelay(22); -} - -static u32 hpcr_value[32] = { - 0x0301, 0x0301, 0x0301, 0x0301, - 0x0301, 0x0301, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0x1031, 0x1031, 0x0735, 0x1035, - 0x1035, 0x0731, 0x1031, 0x0735, - 0x1035, 0x1031, 0x0731, 0x1035, - 0x1031, 0x0301, 0x0301, 0x0731 -}; - -static void mctl_configure_hostport(void) -{ - u32 i; - - for (i = 0; i < 32; i++) - write32(&dram->hpcr[i], hpcr_value[i]); -} - -static void mctl_setup_dram_clock(u32 clk) -{ - /* setup DRAM PLL */ - a1x_pll5_configure(clk / 24, 2, 2, 1); - - /* FIXME: This bit is not documented for A10, and altering it doesn't - * seem to change anything. - * - * #define CCM_PLL5_CTRL_VCO_GAIN (0x1 << 19) - * reg_val = read32(&ccm->pll5_cfg); - * reg_val &= ~CCM_PLL5_CTRL_VCO_GAIN; // PLL VCO Gain off - * write32(reg_val, &ccm->pll5_cfg); - */ - udelay(5500); - - a1x_pll5_enable_dram_clock_output(); - - /* reset GPS */ - /* FIXME: These bits are also undocumented, and seem to have no effect - * on A10. - * - * #define CCM_GPS_CTRL_RESET (0x1 << 0) - * #define CCM_GPS_CTRL_GATE (0x1 << 1) - * clrbits_le32(&ccm->gps_clk_cfg, CCM_GPS_CTRL_RESET | CCM_GPS_CTRL_GATE); - */ - a1x_periph_clock_enable(A1X_CLKEN_GPS); - udelay(1); - a1x_periph_clock_disable(A1X_CLKEN_GPS); - - /* setup MBUS clock */ - /* FIXME: The MBUS does not seem to be present or do anything on A10. It - * is documented in the A13 user manual, but changing settings on A10 - * has no effect. - * - * #define CCM_MBUS_CTRL_M(n) (((n) & 0xf) << 0) - * #define CCM_MBUS_CTRL_M_MASK CCM_MBUS_CTRL_M(0xf) - * #define CCM_MBUS_CTRL_M_X(n) ((n) - 1) - * #define CCM_MBUS_CTRL_N(n) (((n) & 0xf) << 16) - * #define CCM_MBUS_CTRL_N_MASK CCM_MBUS_CTRL_N(0xf) - * #define CCM_MBUS_CTRL_N_X(n) (((n) >> 3) ? 3 : (((n) >> 2) ? 2 : (((n) >> 1) ? 1 : 0))) - * #define CCM_MBUS_CTRL_CLK_SRC(n) (((n) & 0x3) << 24) - * #define CCM_MBUS_CTRL_CLK_SRC_MASK CCM_MBUS_CTRL_CLK_SRC(0x3) - * #define CCM_MBUS_CTRL_CLK_SRC_HOSC 0x0 - * #define CCM_MBUS_CTRL_CLK_SRC_PLL6 0x1 - * #define CCM_MBUS_CTRL_CLK_SRC_PLL5 0x2 - * #define CCM_MBUS_CTRL_GATE (0x1 << 31) - * reg_val = CCM_MBUS_CTRL_GATE | - * CCM_MBUS_CTRL_CLK_SRC(CCM_MBUS_CTRL_CLK_SRC_PLL5) | - * CCM_MBUS_CTRL_N(CCM_MBUS_CTRL_N_X(1)) | - * CCM_MBUS_CTRL_M(CCM_MBUS_CTRL_M_X(2)); - * write32(reg_val, &ccm->mbus_clk_cfg); - */ - /* - * open DRAMC AHB & DLL register clock - * close it first - */ - a1x_periph_clock_disable(A1X_CLKEN_SDRAM); - - udelay(22); - - /* then open it */ - a1x_periph_clock_enable(A1X_CLKEN_SDRAM); - udelay(22); -} - -static int dramc_scan_readpipe(void) -{ - u32 reg32; - - /* data training trigger */ - setbits_le32(&dram->ccr, DRAM_CCR_DATA_TRAINING); - - /* check whether data training process has completed */ - while (read32(&dram->ccr) & DRAM_CCR_DATA_TRAINING); - - /* check data training result */ - reg32 = read32(&dram->csr); - if (reg32 & DRAM_CSR_FAILED) - return -1; - - return 0; -} - -static int dramc_scan_dll_para(void) -{ - const u32 dqs_dly[7] = { 0x3, 0x2, 0x1, 0x0, 0xe, 0xd, 0xc }; - const u32 clk_dly[15] = { 0x07, 0x06, 0x05, 0x04, 0x03, - 0x02, 0x01, 0x00, 0x08, 0x10, - 0x18, 0x20, 0x28, 0x30, 0x38 - }; - u32 clk_dqs_count[15]; - u32 dqs_i, clk_i, cr_i; - u32 max_val, min_val; - u32 dqs_index, clk_index; - - /* Find DQS_DLY Pass Count for every CLK_DLY */ - for (clk_i = 0; clk_i < 15; clk_i++) { - clk_dqs_count[clk_i] = 0; - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - (clk_dly[clk_i] & 0x3f) << 6); - for (dqs_i = 0; dqs_i < 7; dqs_i++) { - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_i] & 0x4f) << 14); - } - udelay(2); - if (dramc_scan_readpipe() == 0) - clk_dqs_count[clk_i]++; - } - } - /* Test DQS_DLY Pass Count for every CLK_DLY from up to down */ - for (dqs_i = 15; dqs_i > 0; dqs_i--) { - max_val = 15; - min_val = 15; - for (clk_i = 0; clk_i < 15; clk_i++) { - if (clk_dqs_count[clk_i] == dqs_i) { - max_val = clk_i; - if (min_val == 15) - min_val = clk_i; - } - } - if (max_val < 15) - break; - } - - /* Check if Find a CLK_DLY failed */ - if (!dqs_i) - goto fail; - - /* Find the middle index of CLK_DLY */ - clk_index = (max_val + min_val) >> 1; - if ((max_val == (15 - 1)) && (min_val > 0)) - /* if CLK_DLY[MCTL_CLK_DLY_COUNT] is very good, then the middle - * value can be more close to the max_val - */ - clk_index = (15 + clk_index) >> 1; - else if ((max_val < (15 - 1)) && (min_val == 0)) - /* if CLK_DLY[0] is very good, then the middle value can be more - * close to the min_val - */ - clk_index >>= 1; - if (clk_dqs_count[clk_index] < dqs_i) - clk_index = min_val; - - /* Find the middle index of DQS_DLY for the CLK_DLY got above, and Scan - * read pipe again - */ - clrsetbits_le32(&dram->dllcr[0], 0x3f << 6, - (clk_dly[clk_index] & 0x3f) << 6); - max_val = 7; - min_val = 7; - for (dqs_i = 0; dqs_i < 7; dqs_i++) { - clk_dqs_count[dqs_i] = 0; - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_i] & 0x4f) << 14); - } - udelay(2); - if (dramc_scan_readpipe() == 0) { - clk_dqs_count[dqs_i] = 1; - max_val = dqs_i; - if (min_val == 7) - min_val = dqs_i; - } - } - - if (max_val < 7) { - dqs_index = (max_val + min_val) >> 1; - if ((max_val == (7 - 1)) && (min_val > 0)) - dqs_index = (7 + dqs_index) >> 1; - else if ((max_val < (7 - 1)) && (min_val == 0)) - dqs_index >>= 1; - if (!clk_dqs_count[dqs_index]) - dqs_index = min_val; - for (cr_i = 1; cr_i < 5; cr_i++) { - clrsetbits_le32(&dram->dllcr[cr_i], - 0x4f << 14, - (dqs_dly[dqs_index] & 0x4f) << 14); - } - udelay(2); - return dramc_scan_readpipe(); - } - -fail: - clrbits_le32(&dram->dllcr[0], 0x3f << 6); - for (cr_i = 1; cr_i < 5; cr_i++) - clrbits_le32(&dram->dllcr[cr_i], 0x4f << 14); - udelay(2); - - return dramc_scan_readpipe(); -} - -static void dramc_set_autorefresh_cycle(u32 clk) -{ - u32 reg32; - u32 tmp_val; - u32 reg_dcr; - - if (clk < 600) { - reg_dcr = read32(&dram->dcr); - if ((reg_dcr & DRAM_DCR_CHIP_DENSITY_MASK) <= - DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_1024M)) - reg32 = (131 * clk) >> 10; - else - reg32 = (336 * clk) >> 10; - - tmp_val = (7987 * clk) >> 10; - tmp_val = tmp_val * 9 - 200; - reg32 |= tmp_val << 8; - reg32 |= 0x8 << 24; - write32(&dram->drr, reg32); - } else { - write32(&dram->drr, 0x0); - } -} - -unsigned long dramc_init(struct dram_para *para) -{ - u32 reg32; - int ret_val; - - /* check input dram parameter structure */ - if (!para) - return 0; - - /* setup DRAM relative clock */ - mctl_setup_dram_clock(para->clock); - - /* reset external DRAM */ - mctl_ddr3_reset(); - - mctl_set_drive(); - - /* dram clock off */ - a1x_gate_dram_clock_output(); - - /* select dram controller 1 */ - write32(&dram->csel, DRAM_CSEL_MAGIC); - - mctl_itm_disable(); - mctl_enable_dll0(para->tpr3); - - /* configure external DRAM */ - reg32 = 0x0; - if (para->type == DRAM_MEMORY_TYPE_DDR3) - reg32 |= DRAM_DCR_TYPE_DDR3; - reg32 |= DRAM_DCR_IO_WIDTH(para->io_width >> 3); - - if (para->density == 256) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_256M); - else if (para->density == 512) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_512M); - else if (para->density == 1024) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_1024M); - else if (para->density == 2048) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_2048M); - else if (para->density == 4096) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_4096M); - else if (para->density == 8192) - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_8192M); - else - reg32 |= DRAM_DCR_CHIP_DENSITY(DRAM_DCR_CHIP_DENSITY_256M); - - reg32 |= DRAM_DCR_BUS_WIDTH((para->bus_width >> 3) - 1); - reg32 |= DRAM_DCR_RANK_SEL(para->rank_num - 1); - reg32 |= DRAM_DCR_CMD_RANK_ALL; - reg32 |= DRAM_DCR_MODE(DRAM_DCR_MODE_INTERLEAVE); - write32(&dram->dcr, reg32); - - /* dram clock on */ - a1x_ungate_dram_clock_output(); - - udelay(1); - - while (read32(&dram->ccr) & DRAM_CCR_INIT); - - mctl_enable_dllx(para->tpr3); - - /* set odt impendance divide ratio */ - reg32 = ((para->zq) >> 8) & 0xfffff; - reg32 |= ((para->zq) & 0xff) << 20; - reg32 |= (para->zq) & 0xf0000000; - write32(&dram->zqcr0, reg32); - - /* set I/O configure register */ - reg32 = 0x00cc0000; - reg32 |= (para->odt_en) & 0x3; - reg32 |= ((para->odt_en) & 0x3) << 30; - write32(&dram->iocr, reg32); - - /* set refresh period */ - dramc_set_autorefresh_cycle(para->clock); - - /* set timing parameters */ - write32(&dram->tpr0, para->tpr0); - write32(&dram->tpr1, para->tpr1); - write32(&dram->tpr2, para->tpr2); - - if (para->type == DRAM_MEMORY_TYPE_DDR3) { - reg32 = DRAM_MR_BURST_LENGTH(0x0); - reg32 |= DRAM_MR_CAS_LAT(para->cas - 4); - reg32 |= DRAM_MR_WRITE_RECOVERY(0x5); - } else if (para->type == DRAM_MEMORY_TYPE_DDR2) { - reg32 = DRAM_MR_BURST_LENGTH(0x2); - reg32 |= DRAM_MR_CAS_LAT(para->cas); - reg32 |= DRAM_MR_WRITE_RECOVERY(0x5); - } - write32(&dram->mr, reg32); - - write32(&dram->emr, para->emr1); - write32(&dram->emr2, para->emr2); - write32(&dram->emr3, para->emr3); - - /* set DQS window mode */ - clrsetbits_le32(&dram->ccr, DRAM_CCR_DQS_DRIFT_COMP, DRAM_CCR_DQS_GATE); - - /* reset external DRAM */ - setbits_le32(&dram->ccr, DRAM_CCR_INIT); - while (read32(&dram->ccr) & DRAM_CCR_INIT); - - /* scan read pipe value */ - mctl_itm_enable(); - if (para->tpr3 & (0x1 << 31)) { - ret_val = dramc_scan_dll_para(); - if (ret_val == 0) - para->tpr3 = - (((read32(&dram->dllcr[0]) >> 6) & 0x3f) << 16) | - (((read32(&dram->dllcr[1]) >> 14) & 0xf) << 0) | - (((read32(&dram->dllcr[2]) >> 14) & 0xf) << 4) | - (((read32(&dram->dllcr[3]) >> 14) & 0xf) << 8) | - (((read32(&dram->dllcr[4]) >> 14) & 0xf) << 12); - } else { - ret_val = dramc_scan_readpipe(); - } - - if (ret_val < 0) - return 0; - - /* configure all host port */ - mctl_configure_hostport(); - - return para->size; -} diff --git a/src/cpu/allwinner/a10/timer.c b/src/cpu/allwinner/a10/timer.c deleted file mode 100644 index 87228a0..0000000 --- a/src/cpu/allwinner/a10/timer.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Timer control and delays for Allwinner CPUs - * - */ - -#include <device/mmio.h> -#include <delay.h> - -#include "timer.h" - -struct a1x_timer_module *const timer_module = (void *)A1X_TIMER_BASE; -struct a1x_timer *const tmr0 = - &((struct a1x_timer_module *)A1X_TIMER_BASE)->timer[0]; - -static inline u32 read_timer(void) -{ - return read32(&tmr0->val); -} - -void init_timer(void) -{ - u32 reg32; - /* Load the timer rollover value */ - write32(&tmr0->interval, 0xffffffff); - /* Configure the timer to run from 24MHz oscillator, no prescaler */ - reg32 = TIMER_CTRL_PRESC_DIV_EXP(0); - reg32 |= TIMER_CTRL_CLK_SRC_OSC24M; - reg32 |= TIMER_CTRL_RELOAD; - reg32 |= TIMER_CTRL_TMR_EN; - write32(&tmr0->ctrl, reg32); -} - -void udelay(unsigned usec) -{ - u32 curr_tick, last_tick; - s32 ticks_left; - - last_tick = read_timer(); - /* 24 timer ticks per microsecond (24 MHz, divided by 1) */ - ticks_left = usec * 24; - - /* FIXME: Should we consider timer rollover? - * From when we start the timer, we have almost three minutes before it - * rolls over, so we should be long into having booted our payload. - */ - while (ticks_left > 0) { - curr_tick = read_timer(); - /* Timer value decreases with each tick */ - ticks_left -= last_tick - curr_tick; - last_tick = curr_tick; - } - -} - -/* - * This function has nothing to do with timers; however, the chip revision - * register is in the timer module, so keep this function here. - */ -u8 a1x_get_cpu_chip_revision(void) -{ - write32(&timer_module->cpu_cfg, 0); - return (read32(&timer_module->cpu_cfg) >> 6) & 0x3; -} diff --git a/src/cpu/allwinner/a10/timer.h b/src/cpu/allwinner/a10/timer.h deleted file mode 100644 index b7658da..0000000 --- a/src/cpu/allwinner/a10/timer.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2011 Allwinner Technology Co., Ltd. - * Tom Cubie tangliang@allwinnertech.com - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version - * - * 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. - * - * Definitions for timer control on Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_TIMER_H -#define CPU_ALLWINNER_A10_TIMER_H - -#include "memmap.h" -#include <types.h> - -/* TMRx_CTRL values */ -#define TIMER_CTRL_MODE_SINGLE (1 << 7) -#define TIMER_CTRL_PRESC_MASK (0x7 << 4) -#define TIMER_CTRL_PRESC_DIV_EXP(ep) ((ep << 4) & TIMER_CTRL_PRESC_MASK) -#define TIMER_CTRL_CLK_SRC_MASK (0x3 << 2) -#define TIMER_CTRL_CLK_SRC_LOSC (0x0 << 2) -#define TIMER_CTRL_CLK_SRC_OSC24M (0x1 << 2) -#define TIMER_CTRL_CLK_SRC_PLL6 (0x2 << 2) -#define TIMER_CTRL_RELOAD (1 << 1) -#define TIMER_CTRL_TMR_EN (1 << 0) - -/* Chip revision definitions (found in CPU_CFG register) */ -#define A1X_CHIP_REV_A 0x0 -#define A1X_CHIP_REV_C1 0x1 -#define A1X_CHIP_REV_C2 0x2 -#define A1X_CHIP_REV_B 0x3 - - -/* General purpose timer */ -struct a1x_timer { - u32 ctrl; - u32 interval; - u32 val; - u8 res[4]; -} __packed; - -/* Audio video sync*/ -struct a1x_avs { - u32 ctrl; /* 0x80 */ - u32 cnt0; /* 0x84 */ - u32 cnt1; /* 0x88 */ - u32 div; /* 0x8c */ -} __packed; - -/* Watchdog */ -struct a1x_wdog { - u32 ctrl; /* 0x90 */ - u32 mode; /* 0x94 */ -} __packed; - -/* 64 bit counter */ -struct a1x_64cnt { - u32 ctrl; /* 0xa0 */ - u32 lo; /* 0xa4 */ - u32 hi; /* 0xa8 */ -} __packed; - -/* Rtc */ -struct a1x_rtc { - u32 ctrl; /* 0x100 */ - u32 yymmdd; /* 0x104 */ - u32 hhmmss; /* 0x108 */ -} __packed; - -/* Alarm */ -struct a1x_alarm { - u32 ddhhmmss; /* 0x10c */ - u32 hhmmss; /* 0x110 */ - u32 en; /* 0x114 */ - u32 irq_en; /* 0x118 */ - u32 irq_sta; /* 0x11c */ -} __packed; - -struct a1x_timer_module { - u32 irq_en; /* 0x00 */ - u32 irq_sta; /* 0x04 */ - u8 res1[8]; - struct a1x_timer timer[6]; /* We have 6 timers */ - u8 res2[16]; - struct a1x_avs avs; - struct a1x_wdog wdog; - u8 res3[8]; - struct a1x_64cnt cnt64; - u8 res4[0x58]; - struct a1x_rtc rtc; - struct a1x_alarm alarm; - u32 gp_data[4]; - u8 res5[8]; - u32 cpu_cfg; -} __packed; - -u8 a1x_get_cpu_chip_revision(void); - -#endif /* CPU_ALLWINNER_A10_TIMER_H */ diff --git a/src/cpu/allwinner/a10/twi.c b/src/cpu/allwinner/a10/twi.c deleted file mode 100644 index 01ee5a5..0000000 --- a/src/cpu/allwinner/a10/twi.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Henrik Nordstrom henrik@henriknordstrom.net - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Setup helpers for Two Wire Interface (TWI) (I2C) Allwinner CPUs - * - * Only functionality for I2C master is provided. - * Largely based on the uboot-sunxi code. - */ - -#include <device/mmio.h> -#include <delay.h> -#include <device/i2c_simple.h> -#include <types.h> - -#include "memmap.h" -#include "twi.h" - -#define TWI_BASE(n) (A1X_TWI0_BASE + 0x400 * (n)) - -#define TWI_TIMEOUT (50 * 1000) - -static u8 is_busy(struct a1x_twi *twi) -{ - return (read32(&twi->stat) != TWI_STAT_IDLE); -} - -static enum cb_err wait_until_idle(struct a1x_twi *twi) -{ - u32 i = TWI_TIMEOUT; - while (i-- && is_busy((twi))) - udelay(1); - return i ? CB_SUCCESS : CB_ERR; -} - -/* FIXME: This function is basic, and unintelligent */ -static void configure_clock(struct a1x_twi *twi, u32 speed_hz) -{ - /* FIXME: We assume clock is 24MHz, which may not be the case */ - u32 apb_clk = 24000000, m, n; - - /* Pre-divide the clock by 8 */ - n = 3; - m = (apb_clk >> n) / speed_hz; - write32(&twi->clk, TWI_CLK_M(m) | TWI_CLK_N(n)); -} - -void a1x_twi_init(u8 bus, u32 speed_hz) -{ - u32 i = TWI_TIMEOUT; - struct a1x_twi *twi = (void *)TWI_BASE(bus); - - configure_clock(twi, speed_hz); - - /* Enable the I2C bus */ - write32(&twi->ctl, TWI_CTL_BUS_EN); - /* Issue soft reset */ - write32(&twi->reset, 1); - - while (i-- && read32(&twi->reset)) - udelay(1); -} - -static void clear_interrupt_flag(struct a1x_twi *twi) -{ - write32(&twi->ctl, read32(&twi->ctl) & ~TWI_CTL_INT_FLAG); -} - -static void i2c_send_data(struct a1x_twi *twi, u8 data) -{ - write32(&twi->data, data); - clear_interrupt_flag(twi); -} - -static enum twi_status wait_for_status(struct a1x_twi *twi) -{ - u32 i = TWI_TIMEOUT; - /* Wait until interrupt is asserted again */ - while (i-- && !(read32(&twi->ctl) & TWI_CTL_INT_FLAG)) - udelay(1); - /* A timeout here most likely indicates a bus error */ - return i ? read32(&twi->stat) : TWI_STAT_BUS_ERROR; -} - -static void i2c_send_start(struct a1x_twi *twi) -{ - u32 reg32, i; - - /* Send START condition */ - reg32 = read32(&twi->ctl); - reg32 &= ~TWI_CTL_INT_FLAG; - reg32 |= TWI_CTL_M_START; - write32(&twi->ctl, reg32); - - /* M_START is automatically cleared after condition is transmitted */ - i = TWI_TIMEOUT; - while (i-- && (read32(&twi->ctl) & TWI_CTL_M_START)) - udelay(1); -} - -static void i2c_send_stop(struct a1x_twi *twi) -{ - u32 reg32; - - /* Send STOP condition */ - reg32 = read32(&twi->ctl); - reg32 &= ~TWI_CTL_INT_FLAG; - reg32 |= TWI_CTL_M_STOP; - write32(&twi->ctl, reg32); -} - -static int i2c_read(struct a1x_twi *twi, uint8_t chip, - uint8_t *buf, size_t len) -{ - unsigned count = len; - enum twi_status expected_status; - - /* Send restart for read */ - i2c_send_start(twi); - if (wait_for_status(twi) != TWI_STAT_TX_RSTART) - return CB_ERR; - - /* Send chip address */ - i2c_send_data(twi, chip << 1 | 1); - if (wait_for_status(twi) != TWI_STAT_TX_AR_ACK) - return CB_ERR; - - /* Start ACK-ing received data */ - setbits_le32(&twi->ctl, TWI_CTL_A_ACK); - expected_status = TWI_STAT_RXD_ACK; - - /* Read data */ - while (count > 0) { - if (count == 1) { - /* Do not ACK the last byte */ - clrbits_le32(&twi->ctl, TWI_CTL_A_ACK); - expected_status = TWI_STAT_RXD_NAK; - } - - clear_interrupt_flag(twi); - - if (wait_for_status(twi) != expected_status) - return CB_ERR; - - *buf++ = read32(&twi->data); - count--; - } - - return len; -} - -static int i2c_write(struct a1x_twi *twi, uint8_t chip, - const uint8_t *buf, size_t len) -{ - size_t count = len; - - i2c_send_start(twi); - if (wait_for_status(twi) != TWI_STAT_TX_START) - return CB_ERR; - - /* Send chip address */ - i2c_send_data(twi, chip << 1); - if (wait_for_status(twi) != TWI_STAT_TX_AW_ACK) - return CB_ERR; - - /* Send data */ - while (count > 0) { - i2c_send_data(twi, *buf++); - if (wait_for_status(twi) != TWI_STAT_TXD_ACK) - return CB_ERR; - count--; - } - - return len; -} - -int platform_i2c_transfer(unsigned bus, struct i2c_msg *segments, int count) -{ - int i, ret = CB_SUCCESS; - struct i2c_msg *seg = segments; - struct a1x_twi *twi = (void *)TWI_BASE(bus); - - - if (wait_until_idle(twi) != CB_SUCCESS) - return CB_ERR; - - for (i = 0; i < count; i++) { - seg = segments + i; - - if (seg->flags & I2C_M_RD) { - ret = i2c_read(twi, seg->slave, seg->buf, seg->len); - if (ret < 0) - break; - } else { - ret = i2c_write(twi, seg->slave, seg->buf, seg->len); - if (ret < 0) - break; - } - } - - /* Don't worry about the status. STOP is on a best-effort basis */ - i2c_send_stop(twi); - - return ret; -} diff --git a/src/cpu/allwinner/a10/twi.h b/src/cpu/allwinner/a10/twi.h deleted file mode 100644 index 833b1dc..0000000 --- a/src/cpu/allwinner/a10/twi.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions Two Wire Interface (TWI) (I2C) Allwinner CPUs - */ - -#ifndef CPU_ALLWINNER_A10_TWI_H -#define CPU_ALLWINNER_A10_TWI_H - -#include <types.h> - -/* TWI_CTL values */ -#define TWI_CTL_INT_EN (1 << 7) -#define TWI_CTL_BUS_EN (1 << 6) -#define TWI_CTL_M_START (1 << 5) -#define TWI_CTL_M_STOP (1 << 4) -#define TWI_CTL_INT_FLAG (1 << 3) -#define TWI_CTL_A_ACK (1 << 2) - -/* TWI_STAT values */ -enum twi_status { - TWI_STAT_BUS_ERROR = 0x00, /**< Bus error */ - TWI_STAT_TX_START = 0x08, /**< START sent */ - TWI_STAT_TX_RSTART = 0x10, /**< Repeated START sent */ - TWI_STAT_TX_AW_ACK = 0x18, /**< Sent address+read, ACK */ - TWI_STAT_TX_AW_NAK = 0x20, /**< Sent address+read, NAK */ - TWI_STAT_TXD_ACK = 0x28, /**< Sent data, got ACK */ - TWI_STAT_TXD_NAK = 0x30, /**< Sent data, no ACK */ - TWI_STAT_LOST_ARB = 0x38, /**< Lost arbitration */ - TWI_STAT_TX_AR_ACK = 0x40, /**< Sent address+write, ACK */ - TWI_STAT_TX_AR_NAK = 0x48, /**< Sent address+write, NAK */ - TWI_STAT_RXD_ACK = 0x50, /**< Got data, sent ACK */ - TWI_STAT_RXD_NAK = 0x58, /**< Got data, no ACK */ - TWI_STAT_IDLE = 0xf8, /**< Bus idle*/ -}; - -/* TWI_CLK values */ -#define TWI_CLK_M_MASK (0xf << 3) -#define TWI_CLK_M(m) (((m - 1) << 3) & TWI_CLK_M_MASK) -#define TWI_CLK_N_MASK (0x7 << 0) -#define TWI_CLK_N(n) ((n) & TWI_CLK_N_MASK) - -struct a1x_twi { - u32 addr; /**< 0x00: Slave address */ - u32 xaddr; /**< 0x04: Extended slave address */ - u32 data; /**< 0x08: Data byte */ - u32 ctl; /**< 0x0C: Control register */ - u32 stat; /**< 0x10: Status register */ - u32 clk; /**< 0x14: Clock control register */ - u32 reset; /**< 0x18: Software reset */ - u32 efr; /**< 0x1C: Enhanced Feature register */ - u32 lcr; /**< 0x20: Line control register */ -}; - -void a1x_twi_init(u8 bus, u32 speed_hz); - -#endif /* CPU_ALLWINNER_A10_TWI_H */ diff --git a/src/cpu/allwinner/a10/uart.c b/src/cpu/allwinner/a10/uart.c deleted file mode 100644 index c721a67..0000000 --- a/src/cpu/allwinner/a10/uart.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 (at your option) - * any later version. - * - * 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. - * - * Uart setup helpers for Allwinner SoCs - * - * - */ - -#include "uart.h" -#include <device/mmio.h> -#include <console/uart.h> -#include <drivers/uart/uart8250reg.h> - -/** - * \brief Configure line control settings for UART - */ -static void a10_uart_configure(struct a10_uart *uart, u32 baud_rate, u8 data_bits, - enum uart_parity parity, u8 stop_bits) -{ - u32 reg32; - u16 div; - - div = (u16) uart_baudrate_divisor(baud_rate, - uart_platform_refclk(), 16); - /* Enable access to Divisor Latch register */ - write32(&uart->lcr, UART8250_LCR_DLAB); - /* Set baudrate */ - write32(&uart->dlh, (div >> 8) & 0xff); - write32(&uart->dll, div & 0xff); - /* Set line control */ - reg32 = (data_bits - 5) & UART8250_LCR_WLS_MSK; - switch (parity) { - case UART_PARITY_ODD: - reg32 |= UART8250_LCR_PEN; - break; - case UART_PARITY_EVEN: - reg32 |= UART8250_LCR_PEN; - reg32 |= UART8250_LCR_EPS; - break; - case UART_PARITY_NONE: /* Fall through */ - default: - break; - } - write32(&uart->lcr, reg32); -} - -static void a10_uart_enable_fifos(struct a10_uart *uart) -{ - write32(&uart->fcr, UART8250_FCR_FIFO_EN); -} - -static int tx_fifo_full(struct a10_uart *uart) -{ - /* This may be a misnomer, or a typo in the datasheet. THRE indicates - * that the TX register is empty, not that the FIFO is not full, but - * this may be due to a datasheet typo. Keep the current name to signal - * intent. */ - return !(read32(&uart->lsr) & UART8250_LSR_THRE); -} - -static int rx_fifo_empty(struct a10_uart *uart) -{ - return !(read32(&uart->lsr) & UART8250_LSR_DR); -} - -/** - * \brief Read a single byte from the UART. - * - * Blocks until at least a byte is available. - */ -static u8 a10_uart_rx_blocking(struct a10_uart *uart) -{ - while (rx_fifo_empty(uart)); - - return read32(&uart->rbr); -} - -/** - * \brief Write a single byte to the UART. - * - * Blocks until there is space in the FIFO. - */ -static void a10_uart_tx_blocking(struct a10_uart *uart, u8 data) -{ - while (tx_fifo_full(uart)); - - return write32(&uart->thr, data); -} - - -void uart_init(int idx) -{ - struct a10_uart *uart_base = uart_platform_baseptr(idx); - - /* Use default 8N1 encoding */ - a10_uart_configure(uart_base, get_uart_baudrate(), - 8, UART_PARITY_NONE, 1); - a10_uart_enable_fifos(uart_base); -} - -unsigned char uart_rx_byte(int idx) -{ - return a10_uart_rx_blocking(uart_platform_baseptr(idx)); -} - -void uart_tx_byte(int idx, unsigned char data) -{ - a10_uart_tx_blocking(uart_platform_baseptr(idx), data); -} - -void uart_tx_flush(int idx) -{ -} diff --git a/src/cpu/allwinner/a10/uart.h b/src/cpu/allwinner/a10/uart.h deleted file mode 100644 index a57fc9c..0000000 --- a/src/cpu/allwinner/a10/uart.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Definitions for UART on Allwinner CPUs - * - * The UART on the A10 seems to be 8250-compatible, however, this has not been - * verified. Our 8250mem code is specific to x86, and does not yet work, so we - * have to re-implement it ARM-style for the time being. The register - * definitions are present in <uart7250.h>, and are not redefined here. - * - */ - -#ifndef CPU_ALLWINNER_A10_UART_H -#define CPU_ALLWINNER_A10_UART_H - -#include <types.h> - -struct a10_uart { - union { - /* operational mode */ - u32 rbr; /* receiver buffer (read) */ - u32 thr; /* transmit holding (write) */ - /* config mode (DLAB set) */ - u32 dll; /* divisor latches low */ - }; - - union { - /* operational mode */ - u32 ier; /* interrupt enable */ - /* config mode (DLAB set) */ - u32 dlh; /* divisor latches high */ - }; - - union { - u32 iir; /* interrupt ID (read) */ - u32 fcr; /* FIFO control (write) */ - }; - - u32 lcr; /* line control */ - - /* 0x10 */ - u32 mcr; /* modem control */ - u32 lsr; /* line status, read-only */ - u32 msr; /* modem status */ - u32 sch; /* scratch register */ - - u8 reserved_0x20[0x50]; - - /* 0x70 */ - u8 reserved_0x70[0xc]; - u32 usr; /* UART status register */ - - /* 0x80 */ - u32 tfl; /* Transmit FIFO level */ - u32 rfl; /* Receive FIFO level */ - u8 reserved_0x88[0x18]; - - /* 0xa0 */ - u8 reserved_0xa0[4]; - u32 halt; /* Halt register */ - -} __packed; - -enum uart_parity { - UART_PARITY_NONE, - UART_PARITY_EVEN, - UART_PARITY_ODD, -}; - -#endif /* CPU_ALLWINNER_A10_UART_H */ diff --git a/src/cpu/allwinner/a10/uart_console.c b/src/cpu/allwinner/a10/uart_console.c deleted file mode 100644 index 363a41a..0000000 --- a/src/cpu/allwinner/a10/uart_console.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * Copyright (C) 2013 Alexandru Gagniuc mr.nuke.me@gmail.com - * - * 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 or (at your option) - * any later version. - * - * 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. - * - * Glue to UART code to enable serial console - */ - -#include <types.h> -#include <console/uart.h> -#include <boot/coreboot_tables.h> - -#include "memmap.h" - -uintptr_t uart_platform_base(int idx) -{ - /* UART blocks are mapped 0x400 bytes apart */ - if (idx < 8) - return A1X_UART0_BASE + 0x400 * idx; - else - return 0; -} - -/* FIXME: We assume clock is 24MHz, which may not be the case. */ -unsigned int uart_platform_refclk(void) -{ - return 24000000; -} - -#ifndef __PRE_RAM__ -void uart_fill_lb(void *data) -{ - struct lb_serial serial; - serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; - serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE); - serial.baud = get_uart_baudrate(); - serial.regwidth = 1; - serial.input_hertz = uart_platform_refclk(); - serial.uart_pci_addr = 0; - lb_add_serial(&serial, data); - - lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); -} -#endif
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