Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12587
-gerrit
commit 200c1c05ccdf49255908844fbc491b378349c121 Author: Yidi Lin yidi.lin@mediatek.com Date: Fri Jul 31 17:10:40 2015 +0800
mediatek/mt8173: Add a stub implementation of the MT8173 SoC
BUG=chrome-os-partner:36682 TEST=emerge-oak coreboot BRANCH=none
Change-Id: I748752d5abca813a0469d3a76e4d40fcbeb9b959 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: ece2f412d94f071a6f5f1dbed4dfaea504da9e1a Original-Change-Id: I1dd5567a10d20840313703cfcd328bec591b4941 Original-Signed-off-by: Yidi Lin yidi.lin@mediatek.com Original-Reviewed-on: https://chromium-review.googlesource.com/292558 Original-Reviewed-by: Julius Werner jwerner@chromium.org --- src/mainboard/google/oak/Kconfig | 49 ++++++ src/mainboard/google/oak/Kconfig.name | 2 + src/mainboard/google/oak/Makefile.inc | 31 ++++ src/mainboard/google/oak/bootblock.c | 33 ++++ src/mainboard/google/oak/chromeos.c | 40 +++++ src/mainboard/google/oak/devicetree.cb | 24 +++ src/mainboard/google/oak/mainboard.c | 38 +++++ src/mainboard/google/oak/memlayout.ld | 1 + src/mainboard/google/oak/romstage.c | 38 +++++ src/soc/mediatek/mt8173/Kconfig | 49 ++++++ src/soc/mediatek/mt8173/Makefile.inc | 50 ++++++ src/soc/mediatek/mt8173/bootblock.c | 24 +++ src/soc/mediatek/mt8173/cbfs.c | 25 +++ src/soc/mediatek/mt8173/cbmem.c | 27 ++++ src/soc/mediatek/mt8173/include/soc/addressmap.h | 62 ++++++++ src/soc/mediatek/mt8173/include/soc/infracfg.h | 56 +++++++ src/soc/mediatek/mt8173/include/soc/mcucfg.h | 111 +++++++++++++ src/soc/mediatek/mt8173/include/soc/memlayout.ld | 53 +++++++ src/soc/mediatek/mt8173/include/soc/pericfg.h | 96 ++++++++++++ src/soc/mediatek/mt8173/include/soc/spm.h | 163 +++++++++++++++++++ src/soc/mediatek/mt8173/include/soc/timer.h | 75 +++++++++ src/soc/mediatek/mt8173/soc.c | 49 ++++++ src/soc/mediatek/mt8173/timer.c | 65 ++++++++ src/soc/mediatek/mt8173/uart.c | 189 +++++++++++++++++++++++ 24 files changed, 1350 insertions(+)
diff --git a/src/mainboard/google/oak/Kconfig b/src/mainboard/google/oak/Kconfig new file mode 100644 index 0000000..a7904ca --- /dev/null +++ b/src/mainboard/google/oak/Kconfig @@ -0,0 +1,49 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2015 MediaTek Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +if BOARD_GOOGLE_OAK + +config BOARD_SPECIFIC_OPTIONS + def_bool y + select SOC_MEDIATEK_MT8173 + select CHROMEOS_VBNV_EC + select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC_SPI + select EC_SOFTWARE_SYNC + select MAINBOARD_HAS_NATIVE_VGA_INIT + select MAINBOARD_DO_NATIVE_VGA_INIT + select VIRTUAL_DEV_SWITCH + +config MAINBOARD_DIR + string + default google/oak + +config MAINBOARD_PART_NUMBER + string + default "oak" + +config DRAM_SIZE_MB + int + default 2048 + +config EC_GOOGLE_CHROMEEC_SPI_BUS + hex + default 0 + +endif # BOARD_GOOGLE_OAK diff --git a/src/mainboard/google/oak/Kconfig.name b/src/mainboard/google/oak/Kconfig.name new file mode 100644 index 0000000..49e27d7 --- /dev/null +++ b/src/mainboard/google/oak/Kconfig.name @@ -0,0 +1,2 @@ +config BOARD_GOOGLE_OAK + bool "Oak" diff --git a/src/mainboard/google/oak/Makefile.inc b/src/mainboard/google/oak/Makefile.inc new file mode 100644 index 0000000..dbfc1db --- /dev/null +++ b/src/mainboard/google/oak/Makefile.inc @@ -0,0 +1,31 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2015 MediaTek Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +bootblock-y += bootblock.c +bootblock-y += memlayout.ld +bootblock-y += chromeos.c + +romstage-y += chromeos.c +romstage-y += romstage.c +romstage-y += memlayout.ld + +ramstage-y += mainboard.c +ramstage-y += chromeos.c +ramstage-y += memlayout.ld + diff --git a/src/mainboard/google/oak/bootblock.c b/src/mainboard/google/oak/bootblock.c new file mode 100644 index 0000000..ddd71b3 --- /dev/null +++ b/src/mainboard/google/oak/bootblock.c @@ -0,0 +1,33 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include <bootblock_common.h> +#include <delay.h> +#include <soc/pericfg.h> + +void bootblock_mainboard_early_init(void) +{ + /* Clear UART0 power down signal */ + clrbits_le32(&mt8173_pericfg->pdn0_set, PERICFG_UART0_PDN); +} + +void bootblock_mainboard_init(void) +{ +} diff --git a/src/mainboard/google/oak/chromeos.c b/src/mainboard/google/oak/chromeos.c new file mode 100644 index 0000000..8d45a13 --- /dev/null +++ b/src/mainboard/google/oak/chromeos.c @@ -0,0 +1,40 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <boot/coreboot_tables.h> +#include <vendorcode/google/chromeos/chromeos.h> + +void fill_lb_gpios(struct lb_gpios *gpios) +{ +} + +int get_developer_mode_switch(void) +{ + return 0; +} + +int get_recovery_mode_switch(void) +{ + return 0; +} + +int get_write_protect_state(void) +{ + return 0; +} diff --git a/src/mainboard/google/oak/devicetree.cb b/src/mainboard/google/oak/devicetree.cb new file mode 100644 index 0000000..75045c6 --- /dev/null +++ b/src/mainboard/google/oak/devicetree.cb @@ -0,0 +1,24 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2015 MediaTek Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +chip soc/mediatek/mt8173 + device cpu_cluster 0 on + device cpu 0 on end + end +end diff --git a/src/mainboard/google/oak/mainboard.c b/src/mainboard/google/oak/mainboard.c new file mode 100644 index 0000000..6e0617e --- /dev/null +++ b/src/mainboard/google/oak/mainboard.c @@ -0,0 +1,38 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/cache.h> +#include <arch/io.h> +#include <boardid.h> +#include <boot/coreboot_tables.h> +#include <device/device.h> + +static void mainboard_init(device_t dev) +{ +} + +static void mainboard_enable(device_t dev) +{ + dev->ops->init = &mainboard_init; +} + +struct chip_operations mainboard_ops = { + .name = "oak", + .enable_dev = mainboard_enable, +}; diff --git a/src/mainboard/google/oak/memlayout.ld b/src/mainboard/google/oak/memlayout.ld new file mode 100644 index 0000000..ead7f47 --- /dev/null +++ b/src/mainboard/google/oak/memlayout.ld @@ -0,0 +1 @@ +#include <soc/memlayout.ld> diff --git a/src/mainboard/google/oak/romstage.c b/src/mainboard/google/oak/romstage.c new file mode 100644 index 0000000..268f15f --- /dev/null +++ b/src/mainboard/google/oak/romstage.c @@ -0,0 +1,38 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <arch/cache.h> +#include <arch/cpu.h> +#include <arch/exception.h> +#include <arch/io.h> + +#include <cbfs.h> +#include <console/console.h> +#include <delay.h> +#include <program_loading.h> +#include <romstage_handoff.h> +#include <symbols.h> + +void main(void) +{ + /* init uart baudrate when pll on */ + console_init(); + exception_init(); + + run_ramstage(); +} diff --git a/src/soc/mediatek/mt8173/Kconfig b/src/soc/mediatek/mt8173/Kconfig new file mode 100644 index 0000000..0f0b134 --- /dev/null +++ b/src/soc/mediatek/mt8173/Kconfig @@ -0,0 +1,49 @@ +config SOC_MEDIATEK_MT8173 + bool + default n + select ARM64_A53_ERRATUM_843419 + select ARCH_BOOTBLOCK_ARMV8_64 + select ARCH_RAMSTAGE_ARMV8_64 + select ARCH_ROMSTAGE_ARMV8_64 + select ARCH_VERSTAGE_ARMV8_64 + select BOOTBLOCK_CONSOLE + select HAVE_UART_SPECIAL + select SPI_ATOMIC_SEQUENCING + select HAVE_MONOTONIC_TIMER + select GENERIC_UDELAY + select HAS_PRECBMEM_TIMESTAMP_REGION + +if SOC_MEDIATEK_MT8173 + +config DEBUG_SOC_DRIVER + bool "The top level switch for soc driver debug message" + default n + select DEBUG_DRAM + select DEBUG_I2C + select DEBUG_PMIC + select DEBUG_PMIC_WRAP + +config DEBUG_DRAM + bool "Output verbose DRAM related debug message" + default n + help + This option enables additional DRAM related debug messages. + +config DEBUG_I2C + bool "Output verbose I2C related debug message" + default n + help + This option enables I2C related debug message. + +config DEBUG_PMIC + bool "Output verbose PMIC related debug message" + default n + help + This option enables PMIC related debug message. + +config DEBUG_PMIC_WRAP + bool "Output verbose PMIC WRAP related debug message" + default n + help + This option enables PMIC WRAP related debug message. +endif diff --git a/src/soc/mediatek/mt8173/Makefile.inc b/src/soc/mediatek/mt8173/Makefile.inc new file mode 100644 index 0000000..74a7618 --- /dev/null +++ b/src/soc/mediatek/mt8173/Makefile.inc @@ -0,0 +1,50 @@ +## +## This file is part of the coreboot project. +## +## Copyright 2015 MediaTek Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +ifeq ($(CONFIG_SOC_MEDIATEK_MT8173),y) + +bootblock-y += bootblock.c +bootblock-y += cbfs.c +bootblock-y += timer.c + +ifeq ($(CONFIG_BOOTBLOCK_CONSOLE),y) +bootblock-$(CONFIG_DRIVERS_UART) += uart.c +endif + +################################################################################ + +romstage-y += cbfs.c +romstage-y += timer.c + +romstage-$(CONFIG_DRIVERS_UART) += uart.c +romstage-y += cbmem.c + +################################################################################ + +ramstage-y += cbmem.c +ramstage-y += cbfs.c +ramstage-y += soc.c +ramstage-y += timer.c +ramstage-$(CONFIG_DRIVERS_UART) += uart.c + +################################################################################ + +CPPFLAGS_common += -Isrc/soc/mediatek/mt8173/include + +endif diff --git a/src/soc/mediatek/mt8173/bootblock.c b/src/soc/mediatek/mt8173/bootblock.c new file mode 100644 index 0000000..232a655 --- /dev/null +++ b/src/soc/mediatek/mt8173/bootblock.c @@ -0,0 +1,24 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <bootblock_common.h> + +void bootblock_soc_init(void) +{ +} diff --git a/src/soc/mediatek/mt8173/cbfs.c b/src/soc/mediatek/mt8173/cbfs.c new file mode 100644 index 0000000..71f7ef5 --- /dev/null +++ b/src/soc/mediatek/mt8173/cbfs.c @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <boot_device.h> + +const struct region_device *boot_device_ro(void) +{ + return NULL; +} diff --git a/src/soc/mediatek/mt8173/cbmem.c b/src/soc/mediatek/mt8173/cbmem.c new file mode 100644 index 0000000..9a8ae7c --- /dev/null +++ b/src/soc/mediatek/mt8173/cbmem.c @@ -0,0 +1,27 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cbmem.h> +#include <stddef.h> +#include <symbols.h> + +void *cbmem_top(void) +{ + return (void *)((uintptr_t) _dram + (CONFIG_DRAM_SIZE_MB << 20)); +} diff --git a/src/soc/mediatek/mt8173/include/soc/addressmap.h b/src/soc/mediatek/mt8173/include/soc/addressmap.h new file mode 100644 index 0000000..37a22ab --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/addressmap.h @@ -0,0 +1,62 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_INCLUDE_SOC_ADDRESS_MAP_H__ +#define __SOC_MEDIATEK_MT8173_INCLUDE_SOC_ADDRESS_MAP_H__ + +#include <stddef.h> +#include <stdint.h> + +enum { + VER_BASE = 0x08000000, + IO_PHYS = 0x10000000, + DDR_BASE = 0x40000000 +}; + +enum { + CKSYS_BASE = IO_PHYS, + INFRACFG_AO_BASE = IO_PHYS + 0x1000, + PERI_CON_BASE = IO_PHYS + 0x3000, + CHA_DRAMCAO_BASE = IO_PHYS + 0x4000, + GPIO_BASE = IO_PHYS + 0x5000, + SPM_BASE = IO_PHYS + 0x6000, + RGU_BASE = IO_PHYS + 0x7000, + GPT_BASE = IO_PHYS + 0x8000, + PMIC_WRAP_BASE = IO_PHYS + 0xD000, + CHA_DDRPHY_BASE = IO_PHYS + 0xF000, + CHB_DRAMCAO_BASE = IO_PHYS + 0x11000, + CHB_DDRPHY_BASE = IO_PHYS + 0x12000, + MCUCFG_BASE = IO_PHYS + 0x200000, + EMI_BASE = IO_PHYS + 0x203000, + EFUSE_BASE = IO_PHYS + 0x206000, + APMIXED_BASE = IO_PHYS + 0x209000, + CHA_DRAMCNAO_BASE = IO_PHYS + 0x20E000, + CHB_DRAMCNAO_BASE = IO_PHYS + 0x213000, + ANA_MIPI_CS1_BASE = IO_PHYS + 0x218000, + UART0_BASE = IO_PHYS + 0x1002000, + SPI_BASE = IO_PHYS + 0x100A000, + I2C_BASE = IO_PHYS + 0x1007000, + I2C_DMA_BASE = IO_PHYS + 0x1000080, + SFLASH_REG_BASE = IO_PHYS + 0x100D000, + SSUSB_MAC_BASE = IO_PHYS + 0x1270000, + SSUSB_IPPC_BASE = IO_PHYS + 0x1280700, + SSUSB_SIF_BASE = IO_PHYS + 0x1290800, +}; + +#endif /* __SOC_MEDIATEK_MT8173_INCLUDE_SOC_ADDRESS_MAP_H___ */ diff --git a/src/soc/mediatek/mt8173/include/soc/infracfg.h b/src/soc/mediatek/mt8173/include/soc/infracfg.h new file mode 100644 index 0000000..5761420 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/infracfg.h @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_INFRACFG_H__ +#define __SOC_MEDIATEK_MT8173_INFRACFG_H__ + +#include <soc/addressmap.h> +#include <types.h> + +struct mt8173_infracfg_regs { + u32 top_ckmuxsel; + u32 reserved0; + u32 top_ckdiv1; + u32 reserved1; + u32 top_dcmctl; + u32 top_dcmdbc; + u32 reserved2[6]; + u32 infra_rst0; + u32 infra_rst1; + u32 reserved3[2]; + u32 infra_pdn0; + u32 infra_pdn1; + u32 reserved4[118]; + u32 topaxi_prot_en; + u32 topaxi_prot_sta0; + u32 topaxi_prot_sta1; /* 0x228 */ +}; + +check_member(mt8173_infracfg_regs, infra_pdn0, 0x40); +check_member(mt8173_infracfg_regs, topaxi_prot_sta1, 0x228); + +static struct mt8173_infracfg_regs *const mt8173_infracfg = + (void *)INFRACFG_AO_BASE; + +enum { + INFRA_PMIC_WRAP_RST = 1 << 7, + L2C_SRAM_PDN = 1 << 7 +}; + +#endif /* __SOC_MEDIATEK_MT8173_INFRACFG_H__ */ diff --git a/src/soc/mediatek/mt8173/include/soc/mcucfg.h b/src/soc/mediatek/mt8173/include/soc/mcucfg.h new file mode 100644 index 0000000..5ac3474 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/mcucfg.h @@ -0,0 +1,111 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_MCUCFG_H__ +#define __SOC_MEDIATEK_MT8173_MCUCFG_H__ + +#include <soc/addressmap.h> + +struct mt8173_mcucfg_regs { + u32 mp0_ca7l_cache_config; + struct { + u32 mem_delsel0; + u32 mem_delsel1; + } mp0_cpu[4]; + u32 mp0_cache_mem_delsel0; + u32 mp0_cache_mem_delsel1; + u32 mp0_axi_config; + u32 mp0_misc_config[10]; + u32 mp0_ca7l_cfg_dis; + u32 mp0_ca7l_clken_ctrl; + u32 mp0_ca7l_rst_ctrl; + u32 mp0_ca7l_misc_config; + u32 mp0_ca7l_dbg_pwr_ctrl; + u32 mp0_rw_rsvd0; + u32 mp0_rw_rsvd1; + u32 mp0_ro_rsvd; + u32 reserved0_0[100]; + u32 mp1_cpucfg; + u32 mp1_miscdbg; + u32 reserved0_1[13]; + u32 mp1_rst_ctl; + u32 mp1_clkenm_div; + u32 reserved0_2[7]; + u32 mp1_config_res; + u32 reserved0_3[101]; + u32 mp0_rst_status; /* 0x400 */ + u32 mp0_dbg_ctrl; + u32 mp0_dbg_flag; + u32 mp0_ca7l_ir_mon; + struct { + u32 pc_lw; + u32 pc_hw; + u32 fp_arch32; + u32 sp_arch32; + u32 fp_arch64_lw; + u32 fp_arch64_hw; + u32 sp_arch64_lw; + u32 sp_arch64_hw; + } mp0_dbg_core[4]; + u32 dfd_ctrl; + u32 dfd_cnt_l; + u32 dfd_cnt_h; + u32 misccfg_mp0_rw_rsvd; + u32 misccfg_sec_vio_status0; + u32 misccfg_sec_vio_status1; + u32 reserved1[22]; + u32 misccfg_rw_rsvd; /* 0x500 */ + u32 mcusys_dbg_mon_sel_a; + u32 mcusys_dbg_mon; + u32 reserved2[61]; + u32 mcusys_config_a; /* 0x600 */ + u32 mcusys_config1_a; + u32 mcusys_gic_peribase_a; + u32 reserved3; + u32 sec_range0_start; /* 0x610 */ + u32 sec_range0_end; + u32 sec_range_enable; + u32 reserved4; + u32 int_pol_ctl[8]; /* 0x620 */ + u32 aclken_div; /* 0x640 */ + u32 pclken_div; + u32 l2c_sram_ctrl; + u32 armpll_jit_ctrl; + u32 cci_addrmap; /* 0x650 */ + u32 cci_config; + u32 cci_periphbase; + u32 cci_nevntcntovfl; + u32 cci_clk_ctrl; /* 0x660 */ + u32 cci_acel_s1_ctrl; + u32 bus_fabric_dcm_ctrl; + u32 reserved5; + u32 xgpt_ctl; /* 0x670 */ + u32 xgpt_idx; + u32 ptpod2_ctl0; + u32 ptpod2_ctl1; + u32 mcusys_revid; + u32 mcusys_rw_rsvd0; + u32 mcusys_rw_rsvd1; +}; + +check_member(mt8173_mcucfg_regs, mcusys_rw_rsvd1, 0x688); + +static struct mt8173_mcucfg_regs * const mt8173_mcucfg = (void *)MCUCFG_BASE; + +#endif /* __SOC_MEDIATEK_MT8173_MCUCFG_H__ */ diff --git a/src/soc/mediatek/mt8173/include/soc/memlayout.ld b/src/soc/mediatek/mt8173/include/soc/memlayout.ld new file mode 100644 index 0000000..a703808 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/memlayout.ld @@ -0,0 +1,53 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <memlayout.h> + +#include <arch/header.ld> + +/* + * SRAM_L2C is the half part of L2 cache that we borrow it to be used as SRAM. + * It will be returned before starting the ramstage. + * SRAM_L2C and SRAM can be cached, but only SRAM is DMA-able. + */ +#define SRAM_L2C_START(addr) SYMBOL(sram_l2c, addr) +#define SRAM_L2C_END(addr) SYMBOL(esram_l2c, addr) + +SECTIONS +{ + SRAM_L2C_START(0x000C0000) + BOOTBLOCK(0x000C1000, 85K) + VERSTAGE(0x000D7000, 114K) + PRERAM_CBFS_CACHE(0x000F6000, 16K) + SRAM_L2C_END(0x00100000) + + SRAM_START(0x00100000) + VBOOT2_WORK(0x00100000, 12K) + PRERAM_CBMEM_CONSOLE(0x00103000, 16K) + TIMESTAMP(0x00107000, 4K) + ROMSTAGE(0x00108000, 92K) + STACK(0x00124000, 16K) + TTB(0x00128000, 28K) + DMA_COHERENT(0x0012F000, 4K) + SRAM_END(0x00130000) + + DRAM_START(0x40000000) + POSTRAM_CBFS_CACHE(0x40100000, 1M) + RAMSTAGE(0x40200000, 256K) +} diff --git a/src/soc/mediatek/mt8173/include/soc/pericfg.h b/src/soc/mediatek/mt8173/include/soc/pericfg.h new file mode 100644 index 0000000..d2ea0de --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/pericfg.h @@ -0,0 +1,96 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_PERICFG_H__ +#define __SOC_MEDIATEK_MT8173_PERICFG_H__ + +#include <soc/addressmap.h> +#include <types.h> + +struct mt8173_pericfg_regs { + u32 rst0; + u32 rst1; + u32 pdn0_set; + u32 pdn1_set; + u32 pdn0_clr; + u32 pdn1_clr; + u32 pdn0_sta; + u32 pdn1_sta; + u32 pdn_md1_set; + u32 pdn_md2_set; + u32 pdn_md1_clr; + u32 pdn_md2_clr; + u32 pdn_md1_sta; + u32 pdn_md2_sta; + u32 pdn_md_mask; + u32 reserved0[5]; + u32 dcmctl; + u32 dcmdbc; + u32 dcmfsel; + u32 cksel; + u32 reserved1[104]; + u32 axi_bus_ctl1; + u32 axi_bus_ctl2; + u32 axi_bus_ctl3; + u32 axi_si0_ctl; + u32 axi_si1_ctl; + u32 axi_mi_sta; + u32 reserved2[58]; + u32 axi_ahb_lmt_con1; + u32 axi_ahb_lmt_con2; + u32 axi_ahb_lmt_con3; + u32 axi_ahb_lmt_con4; + u32 axi_ahb_lmt_con5; + u32 axi_ahb_lmt_con6; + u32 reserved3[2]; + u32 axi_axi_lmt_con1; + u32 axi_axi_lmt_con2; + u32 axi_axi_lmt_con3; + u32 axi_axi_lmt_con4; + u32 axi_axi_lmt_con5; + u32 axi_axi_lmt_con6; + u32 axi_axi_lmt_con7; + u32 axi_axi_lmt_con8; + u32 axi_axi_lmt_con9; + u32 reserved4[47]; + u32 usb_wakeup_dec_con0; + u32 usb_wakeup_dec_con1; + u32 usb_wakeup_dec_con2; + u32 uart_ck_source_sel; + u32 reserved5[1]; + u32 usb_wakeup_dec_con3a; + u32 reserved6[58]; + u32 ssusb_rst; + u32 ssusb_pdn_set; + u32 ssusb_pdn_clr; + u32 ssusb_pdn_sta; +}; + +static struct mt8173_pericfg_regs * const mt8173_pericfg = + (void *)PERI_CON_BASE; + +/* + * UART power down control + */ + +enum { + PERICFG_UART0_PDN = 1 << 19 +}; + +#endif /* __SOC_MEDIATEK_MT8173_PERICFG_H__ */ diff --git a/src/soc/mediatek/mt8173/include/soc/spm.h b/src/soc/mediatek/mt8173/include/soc/spm.h new file mode 100644 index 0000000..a4d6d64 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/spm.h @@ -0,0 +1,163 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_SPM_H__ +#define __SOC_MEDIATEK_MT8173_SPM_H__ + +#include <soc/addressmap.h> +#include <stddef.h> + +enum { + SPM_PROJECT_CODE = 0xb16 +}; + +struct mt8173_spm_regs { + u32 poweron_config_set; + u32 reserved1[3]; + u32 power_on_val0; /* 0x010 */ + u32 power_on_val1; + u32 reserved2[58]; + u32 clk_settle; /* 0x100 */ + u32 reserved3[63]; + u32 ca7_cpu0_pwr_con; /* 0x200 */ + u32 ca7_dbg_pwr_con; + u32 ca7_cputop_pwr_con; + u32 reserved4; + u32 vde_pwr_con; /* 0x210 */ + u32 mfg_pwr_con; + u32 ca7_cpu1_pwr_con; /* 0x218 */ + u32 ca7_cpu2_pwr_con; + u32 ca7_cpu3_pwr_con; /* 0x220 */ + u32 reserved5[3]; + u32 ven_pwr_con; /* 0x230 */ + u32 ifr_pwr_con; + u32 isp_pwr_con; + u32 dis_pwr_con; + u32 dpy_pwr_con; /* 0x240 */ + u32 ca7_cputop_l2_pdn; /* 0x244 */ + u32 ca7_cputop_l2_sleep; + u32 reserved6[4]; + struct { /* 0x25c */ + u32 l1_pdn; + u32 reserved; + } ca7_cpu[4]; + u32 gcpu_sram_con; /* 0x27c */ + u32 dpy2_pwr_con; /* 0x280 */ + u32 md_pwr_con; + u32 reserved11[2]; + u32 mcu_pwr_con; /* 0x290 */ + u32 ifr_sramrom_con; + u32 mjc_pwr_con; + u32 audio_pwr_con; + u32 ca15_cpu_pwr_con[4]; /* 0x2a0 */ + u32 ca15_cputop_pwr_con; /* 0x2b0 */ + u32 ca15_l1_pwr_con; /* 0x2b4 */ + u32 ca15_l2_pwr_con; /* 0x2b8 */ + u32 reserved12; + u32 mfg_2d_pwr_con; /* 0x2c0 */ + u32 mfg_async_pwr_con; + u32 vpu_sram_con; + u32 reserved13[17]; + u32 pcm_con0; /* 0x310 */ + u32 pcm_con1; + u32 pcm_im_ptr; + u32 pcm_im_len; + u32 pcm_reg_data_ini; /* 0x320 */ + u32 reserved14[7]; + u32 pcm_event_vector0; /* 0x340 */ + u32 pcm_event_vector1; + u32 pcm_event_vector2; + u32 pcm_event_vector3; + u32 reserved15; + u32 pcm_mas_pause_mask; /* 0x354 */ + u32 pcm_pwr_io_en; + u32 pcm_timer_val; + u32 pcm_timer_out; + u32 reserved16[7]; + u32 pcm_reg_data[16]; /* 0x380 */ + u32 pcm_event_reg_sta; + u32 pcm_fsm_sta; + u32 pcm_im_host_rw_ptr; + u32 pcm_im_host_rw_dat; + u32 pcm_event_vector4; + u32 pcm_event_vector5; + u32 pcm_event_vector6; + u32 pcm_event_vector7; + u32 pcm_sw_int_set; + u32 pcm_sw_int_clear; + u32 reserved17[6]; + u32 clk_con; /* 0x400 */ + u32 sleep_dual_vcore_pwr_con; /* 0x404 */ + u32 sleep_ptpod2_con; + u32 reserved18[125]; + u32 apmcu_pwrctl; /* 0x600 */ + u32 ap_dvfs_con_set; + u32 ap_stanby_con; + u32 pwr_status; /* 0x60c */ + u32 pwr_status_2nd; /* 0x610 */ + u32 ap_bsi_req; + u8 reserved19[0x720 - 0x618]; + u32 sleep_timer_sta; /* 0x720 */ + u32 reserved20[15]; + u32 sleep_twam_con; /* 0x760 */ + u32 sleep_twam_status0; + u32 sleep_twam_status1; + u32 sleep_twam_status2; + u32 sleep_twam_status3; /* 0x770 */ + u32 reserved21[39]; + u32 sleep_wakeup_event_mask; /* 0x810 */ + u32 sleep_cpu_wakeup_event; + u32 sleep_md32_wakeup_event_mask; + u32 reserved22[2]; + u32 pcm_wdt_timer_val; /* 0x824 */ + u32 pcm_wdt_timer_out; + u32 reserved23; + u32 pcm_md32_mailbox; /* 0x830 */ + u32 pcm_md32_irq; + u32 reserved24[50]; + u32 sleep_isr_mask; /* 0x900 */ + u32 sleep_isr_status; + u32 reserved25[2]; + u32 sleep_isr_raw_sta; /* 0x910 */ + u32 sleep_md32_isr_raw_sta; + u32 sleep_wakeup_misc; + u32 sleep_bus_protect_rdy; + u32 sleep_subsys_idle_sta; /* 0x920 */ + u8 reserved26[0xb00 - 0x924]; + u32 pcm_reserve; /* 0xb00 */ + u32 pcm_reserve2; + u32 pcm_flags; + u32 pcm_src_req; + u32 reserved27[4]; + u32 pcm_debug_con; /* 0xb20 */ + u32 reserved28[3]; + u32 ca7_cpu_irq_mask[4]; /* 0xb30 */ + u32 ca15_cpu_irq_mask[4]; + u32 reserved29[4]; + u32 pcm_pasr_dpd[4]; /* 0xb60 */ + u8 reserved30[0xf00 - 0xb70]; + u32 sleep_ca7_wfi_en[4]; /* 0xf00 */ + u32 sleep_ca15_wfi_en[4]; +}; + +check_member(mt8173_spm_regs, sleep_ca15_wfi_en[3], 0xf1c); + +static struct mt8173_spm_regs * const mt8173_spm = (void *)SPM_BASE; + +#endif /* __SOC_MEDIATEK_MT8173_SPM_H__ */ diff --git a/src/soc/mediatek/mt8173/include/soc/timer.h b/src/soc/mediatek/mt8173/include/soc/timer.h new file mode 100644 index 0000000..b38feb0 --- /dev/null +++ b/src/soc/mediatek/mt8173/include/soc/timer.h @@ -0,0 +1,75 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_MEDIATEK_MT8173_TIMER_H__ +#define __SOC_MEDIATEK_MT8173_TIMER_H__ + +#include <soc/addressmap.h> +#include <types.h> + +struct mt8173_gpt_regs { + u32 irqen; + u32 irqsta; + u32 irqack; + u32 reserved0; + u32 gpt1_con; + u32 gpt1_clk; + u32 gpt1_cnt; + u32 gpt1_compare; + u32 gpt2_con; + u32 gpt2_clk; + u32 gpt2_cnt; + u32 gpt2_compare; + u32 gpt3_con; + u32 gpt3_clk; + u32 gpt3_cnt; + u32 gpt3_compare; + u32 gpt4_con; + u32 gpt4_clk; + u32 gpt4_cnt; + u32 gpt4_compare; + u32 gpt5_con; + u32 gpt5_clk; + u32 gpt5_cnt; + u32 gpt5_compare; + u32 gpt6_con; + u32 gpt6_clk; + u32 gpt6_cntl; + u32 gpt6_comparel; + u32 reserved1[2]; + u32 gpt6_cnth; + u32 gpt6_compareh; + u32 apxgpt_irqmask; + u32 apxgpt_irqmask1; +}; + +static struct mt8173_gpt_regs * const mt8173_gpt = (void *)GPT_BASE; + +enum { + GPT_CON_EN = 0x01, + GPT_CON_CLR = 0x02, + GPT_MODE_ONE_SHOT = 0x00, + GPT_MODE_REPEAT = 0x10, + GPT_MODE_KEEP_GO = 0x20, + GPT_MODE_FREERUN = 0x30, + GPT_SYS_CLK = 0x00, + GPT_SYS_RTC = 0x01, +}; + +#endif /* __SOC_MEDIATEK_MT8173_TIMER_H__ */ diff --git a/src/soc/mediatek/mt8173/soc.c b/src/soc/mediatek/mt8173/soc.c new file mode 100644 index 0000000..643c622 --- /dev/null +++ b/src/soc/mediatek/mt8173/soc.c @@ -0,0 +1,49 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cpu/cpu.h> +#include <console/console.h> +#include <device/device.h> + +#include <symbols.h> + +static void soc_read_resources(device_t dev) +{ + ram_resource(dev, 0, (uintptr_t)_dram / KiB, + CONFIG_DRAM_SIZE_MB * KiB); +} + +static void soc_init(device_t dev) +{ +} + +static struct device_operations soc_ops = { + .read_resources = soc_read_resources, + .init = soc_init, +}; + +static void enable_soc_dev(device_t dev) +{ + dev->ops = &soc_ops; +} + +struct chip_operations soc_mediatek_mt8173_ops = { + CHIP_NAME("SOC Mediatek MT8173\n") + .enable_dev = enable_soc_dev, +}; diff --git a/src/soc/mediatek/mt8173/timer.c b/src/soc/mediatek/mt8173/timer.c new file mode 100644 index 0000000..d23c230 --- /dev/null +++ b/src/soc/mediatek/mt8173/timer.c @@ -0,0 +1,65 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include <console/console.h> +#include <timer.h> +#include <delay.h> +#include <thread.h> + +#include <soc/addressmap.h> +#include <soc/mcucfg.h> +#include <soc/timer.h> + +#define GPT4_MHZ 13 + +void timer_monotonic_get(struct mono_time *mt) +{ + mono_time_set_usecs(mt, read32(&mt8173_gpt->gpt4_cnt) / GPT4_MHZ); +} + +/** + * init_timer - initialize timer + */ +void init_timer(void) +{ + /* Set XGPT_IDX to 0, then the bit field of XGPT_CTL will be programmed + * with following definition. + * + * [10: 8] Clock mode + * 100: 26Mhz / 4 + * 010: 26Mhz / 2 + * 001: 26Mhz + * [ 1: 1] Halt-on-debug enable bit + * [ 0: 0] XGPT enable bit + */ + write32(&mt8173_mcucfg->xgpt_idx, 0); + /* Set clock mode to 13Mhz and enable XGPT */ + write32(&mt8173_mcucfg->xgpt_ctl, (0x1 | ((26 / GPT4_MHZ) << 8))); + + /* Disable GPT4 and clear the counter */ + clrbits_le32(&mt8173_gpt->gpt4_con, GPT_CON_EN); + setbits_le32(&mt8173_gpt->gpt4_con, GPT_CON_CLR); + + /* Set clock source to system clock and set clock divider to 1 */ + write32(&mt8173_gpt->gpt4_clk, GPT_SYS_CLK | 0x0); + /* Set operation mode to FREERUN mode and enable GTP4 */ + write32(&mt8173_gpt->gpt4_con, GPT_CON_EN | GPT_MODE_FREERUN); +} + diff --git a/src/soc/mediatek/mt8173/uart.c b/src/soc/mediatek/mt8173/uart.c new file mode 100644 index 0000000..bd239c7 --- /dev/null +++ b/src/soc/mediatek/mt8173/uart.c @@ -0,0 +1,189 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include <boot/coreboot_tables.h> +#include <console/console.h> /* for __console definition */ +#include <console/uart.h> +#include <drivers/uart/uart8250reg.h> +#include <stdint.h> + +#include <soc/addressmap.h> + +struct mtk_uart { + union { + uint32_t thr; /* Transmit holding register. */ + uint32_t rbr; /* Receive buffer register. */ + uint32_t dll; /* Divisor latch lsb. */ + }; + union { + uint32_t ier; /* Interrupt enable register. */ + uint32_t dlm; /* Divisor latch msb. */ + }; + union { + uint32_t iir; /* Interrupt identification register. */ + uint32_t fcr; /* FIFO control register. */ + uint32_t efr; /* Enhanced feature register. */ + }; + uint32_t lcr; /* Line control register. */ + union { + uint32_t mcr; /* Modem control register. */ + uint32_t xn1; /* XON1 */ + }; + union { + uint32_t lsr; /* Line status register. */ + uint32_t xn2; /* XON2 */ + }; + union { + uint32_t msr; /* Modem status register. */ + uint32_t xf1; /* XOFF1 */ + }; + union { + uint32_t scr; /* Scratch register. */ + uint32_t xf2; /* XOFF2 */ + }; + uint32_t autobaud_en; /* Enable auto baudrate. */ + uint32_t highspeed; /* High speed UART. */ +} __attribute__ ((packed)); + +/* Peripheral Reset and Power Down registers */ +struct mtk_peri_globalcon { + uint32_t rst0; + uint32_t rst1; + uint32_t pdn0_set; + uint32_t pdn1_set; + uint32_t pdn0_clr; + uint32_t pdn1_clr; + uint32_t pdn0_sta; + uint32_t pdn1_sta; + uint32_t pdn_md1_set; + uint32_t pdn_md2_set; + uint32_t pdn_md1_clr; + uint32_t pdn_md2_clr; + uint32_t pdn_md1_sta; + uint32_t pdn_md2_sta; + uint32_t pdn_md_mask; +} __attribute__ ((packed)); + +static struct mtk_uart *const uart_ptr = (void *)UART0_BASE; + +static void mtk_uart_tx_flush(void); +static int mtk_uart_tst_byte(void); + +static void mtk_uart_init(void) +{ + /* Use a hardcoded divisor for now. */ + const unsigned uartclk = 26 * MHz; + const unsigned baudrate = CONFIG_TTYS0_BAUD; + const uint8_t line_config = UART8250_LCR_WLS_8; /* 8n1 */ + unsigned highspeed, quot, divisor, remainder; + + if (baudrate <= 115200) { + highspeed = 0; + quot = 16; + } else { + highspeed = 2; + quot = 4; + } + + /* Set divisor DLL and DLH */ + divisor = uartclk / (quot * baudrate); + remainder = uartclk % (quot * baudrate); + + if (remainder >= (quot / 2) * baudrate) + divisor += 1; + + mtk_uart_tx_flush(); + + /* Disable interrupts. */ + write8(&uart_ptr->ier, 0); + /* Force DTR and RTS to high. */ + write8(&uart_ptr->mcr, UART8250_MCR_DTR | UART8250_MCR_RTS); + /* Set High speed UART register. */ + write8(&uart_ptr->highspeed, highspeed); + /* Set line configuration, access divisor latches. */ + write8(&uart_ptr->lcr, UART8250_LCR_DLAB | line_config); + /* Set the divisor. */ + write8(&uart_ptr->dll, divisor & 0xff); + write8(&uart_ptr->dlm, (divisor >> 8) & 0xff); + /* Hide the divisor latches. */ + write8(&uart_ptr->lcr, line_config); + /* Enable FIFOs, and clear receive and transmit. */ + write8(&uart_ptr->fcr, + UART8250_FCR_FIFO_EN | UART8250_FCR_CLEAR_RCVR | + UART8250_FCR_CLEAR_XMIT); + +} + +static void mtk_uart_tx_byte(unsigned char data) +{ + while (!(read8(&uart_ptr->lsr) & UART8250_LSR_THRE)); + write8(&uart_ptr->thr, data); +} + +static void mtk_uart_tx_flush(void) +{ + while (!(read8(&uart_ptr->lsr) & UART8250_LSR_TEMT)); +} + +static unsigned char mtk_uart_rx_byte(void) +{ + if (!mtk_uart_tst_byte()) + return 0; + return read8(&uart_ptr->rbr); +} + +static int mtk_uart_tst_byte(void) +{ + return (read8(&uart_ptr->lsr) & UART8250_LSR_DR) == UART8250_LSR_DR; +} + +void uart_init(int idx) +{ + mtk_uart_init(); +} + +unsigned char uart_rx_byte(int idx) +{ + return mtk_uart_rx_byte(); +} + +void uart_tx_byte(int idx, unsigned char data) +{ + mtk_uart_tx_byte(data); +} + +void uart_tx_flush(int idx) +{ + mtk_uart_tx_flush(); +} + +#ifndef __PRE_RAM__ +void uart_fill_lb(void *data) +{ + struct lb_serial serial; + serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; + serial.baseaddr = UART0_BASE; + serial.baud = default_baudrate(); + serial.regwidth = 1; + lb_add_serial(&serial, data); + + lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); +} +#endif