The Boot ROM on PH1-LD11/LD20 exports built-in APIs to load images from an eMMC device. They are useful to reduce the memory footprint of SPL, rather than compiling the whole MMC framework.

Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---

arch/arm/mach-uniphier/boot-mode/Makefile | 4 + arch/arm/mach-uniphier/boot-mode/boot-mode.c | 25 +++++- arch/arm/mach-uniphier/boot-mode/spl_board.c | 128 +++++++++++++++++++++++++++ include/configs/uniphier.h | 4 +- 4 files changed, 157 insertions(+), 4 deletions(-) create mode 100644 arch/arm/mach-uniphier/boot-mode/spl_board.c

diff --git a/arch/arm/mach-uniphier/boot-mode/Makefile b/arch/arm/mach-uniphier/boot-mode/Makefile index d7fefc5..a898021 100644 --- a/arch/arm/mach-uniphier/boot-mode/Makefile +++ b/arch/arm/mach-uniphier/boot-mode/Makefile @@ -14,4 +14,8 @@ obj-$(CONFIG_ARCH_UNIPHIER_LD6B) += boot-mode-pxs2.o obj-$(CONFIG_ARCH_UNIPHIER_LD11) += boot-mode-ld20.o obj-$(CONFIG_ARCH_UNIPHIER_LD20) += boot-mode-ld20.o

+ifdef CONFIG_SPL_BUILD +obj-$(CONFIG_SPL_BOARD_LOAD_IMAGE) += spl_board.o +else obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o +endif diff --git a/arch/arm/mach-uniphier/boot-mode/boot-mode.c b/arch/arm/mach-uniphier/boot-mode/boot-mode.c index 4b744da..d34b9af 100644 --- a/arch/arm/mach-uniphier/boot-mode/boot-mode.c +++ b/arch/arm/mach-uniphier/boot-mode/boot-mode.c @@ -51,11 +51,30 @@ u32 spl_boot_device_raw(void)

u32 spl_boot_device(void) { - u32 ret; + u32 mode;

- ret = spl_boot_device_raw(); + mode = spl_boot_device_raw();

- return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret; + switch (uniphier_get_soc_type()) { +#if defined(CONFIG_ARCH_UNIPHIER_PXS2) || defined(CONFIG_ARCH_UNIPHIER_LD6B) + case SOC_UNIPHIER_PXS2: + case SOC_UNIPHIER_LD6B: + if (mode == BOOT_DEVICE_USB) + mode = BOOT_DEVICE_NOR; + break; +#endif +#if defined(CONFIG_ARCH_UNIPHIER_LD11) || defined(CONFIG_ARCH_UNIPHIER_LD20) + case SOC_UNIPHIER_LD11: + case SOC_UNIPHIER_LD20: + if (mode == BOOT_DEVICE_MMC1 || mode == BOOT_DEVICE_USB) + mode = BOOT_DEVICE_BOARD; + break; +#endif + default: + break; + } + + return mode; }

u32 spl_boot_mode(void) diff --git a/arch/arm/mach-uniphier/boot-mode/spl_board.c b/arch/arm/mach-uniphier/boot-mode/spl_board.c new file mode 100644 index 0000000..86292b6 --- /dev/null +++ b/arch/arm/mach-uniphier/boot-mode/spl_board.c @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada yamada.masahiro@socionext.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spl.h> +#include <linux/io.h> +#include <asm/processor.h> + +#include "../soc-info.h" + +void spl_board_announce_boot_device(void) +{ + printf("eMMC"); +} + +struct uniphier_romfunc_table { + void *mmc_send_cmd; + void *mmc_card_blockaddr; + void *mmc_switch_part; + void *mmc_load_image; +}; + +static const struct uniphier_romfunc_table uniphier_ld11_romfunc_table = { + .mmc_send_cmd = (void *)0x20d8, + .mmc_card_blockaddr = (void *)0x1b68, + .mmc_switch_part = (void *)0x1c38, + .mmc_load_image = (void *)0x2e48, +}; + +static const struct uniphier_romfunc_table uniphier_ld20_romfunc_table = { + .mmc_send_cmd = (void *)0x2130, + .mmc_card_blockaddr = (void *)0x1ba0, + .mmc_switch_part = (void *)0x1c70, + .mmc_load_image = (void *)0x2ef0, +}; + +int uniphier_rom_get_mmc_funcptr(int (**send_cmd)(u32, u32), + int (**card_blockaddr)(u32), + int (**switch_part)(int), + int (**load_image)(u32, uintptr_t, u32)) +{ + const struct uniphier_romfunc_table *table; + + switch (uniphier_get_soc_type()) { + case SOC_UNIPHIER_LD11: + table = &uniphier_ld11_romfunc_table; + break; + case SOC_UNIPHIER_LD20: + table = &uniphier_ld20_romfunc_table; + break; + default: + printf("unsupported SoC\n"); + return -EINVAL; + } + + *send_cmd = table->mmc_send_cmd; + *card_blockaddr = table->mmc_card_blockaddr; + *switch_part = table->mmc_switch_part; + *load_image = table->mmc_load_image; + + return 0; +} + +int spl_board_load_image(void) +{ + int (*send_cmd)(u32 cmd, u32 arg); + int (*card_blockaddr)(u32 rca); + int (*switch_part)(int part); + int (*load_image)(u32 dev_addr, uintptr_t load_addr, u32 block_cnt); + u32 dev_addr = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR; + const u32 rca = 0x1000; /* RCA assigned by Boot ROM */ + int ret; + + ret = uniphier_rom_get_mmc_funcptr(&send_cmd, &card_blockaddr, + &switch_part, &load_image); + if (ret) + return ret; + + /* + * deselect card before SEND_CSD command. + * Do not check the return code. It fails, but it is OK. + */ + (*send_cmd)(0x071a0000, 0); /* CMD7 (arg=0) */ + + /* reset CMD Line */ + writeb(0x6, 0x5a00022f); + while (readb(0x5a00022f)) + cpu_relax(); + + ret = (*card_blockaddr)(rca); + if (ret) { + debug("card is block addressing\n"); + } else { + debug("card is byte addressing\n"); + dev_addr *= 512; + } + + ret = (*send_cmd)(0x071a0000, rca << 16); /* CMD7: select card again */ + if (ret) + printf("failed to select card\n"); + + ret = (*switch_part)(1); /* Switch to Boot Partition 1 */ + if (ret) + printf("failed to switch partition\n"); + + ret = (*load_image)(dev_addr, CONFIG_SYS_TEXT_BASE, 1); + if (ret) { + printf("failed to load image\n"); + return ret; + } + + ret = spl_parse_image_header((void *)CONFIG_SYS_TEXT_BASE); + if (ret) + return ret; + + ret = (*load_image)(dev_addr, spl_image.load_addr, + spl_image.size / 512); + if (ret) { + printf("failed to load image\n"); + return ret; + } + + return 0; +} diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index 10fd8c2..058ccd8 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -288,7 +288,9 @@ #define CONFIG_SPL_FRAMEWORK #define CONFIG_SPL_SERIAL_SUPPORT #define CONFIG_SPL_NOR_SUPPORT -#ifndef CONFIG_ARM64 +#ifdef CONFIG_ARM64 +#define CONFIG_SPL_BOARD_LOAD_IMAGE +#else #define CONFIG_SPL_NAND_SUPPORT #define CONFIG_SPL_MMC_SUPPORT #endif