Add the required CPU code so that TPL builds correctly. Also update the SPL code to deal with being booted from TPL.
Reviewed-by: Bin Meng bmeng.cn@gmail.com Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v3: - Rebase to x86/master
Changes in v2: None
arch/x86/include/asm/spl.h | 17 ++++- arch/x86/lib/Makefile | 9 ++- arch/x86/lib/spl.c | 44 ++++++++++- arch/x86/lib/tpl.c | 118 ++++++++++++++++++++++++++++++ include/configs/chromebook_link.h | 3 - include/configs/qemu-x86.h | 5 -- 6 files changed, 183 insertions(+), 13 deletions(-) create mode 100644 arch/x86/lib/tpl.c
diff --git a/arch/x86/include/asm/spl.h b/arch/x86/include/asm/spl.h index 8cf59d14e7c..27432b28979 100644 --- a/arch/x86/include/asm/spl.h +++ b/arch/x86/include/asm/spl.h @@ -2,6 +2,19 @@ /* * Copyright (C) 2017 Google, Inc * Written by Simon Glass sjg@chromium.org - * - * This file is required for SPL to build, but is empty. */ + +#ifndef __asm_spl_h +#define __asm_spl_h + +#define CONFIG_SPL_BOARD_LOAD_IMAGE + +enum { + BOOT_DEVICE_SPI = 10, + BOOT_DEVICE_BOARD, + BOOT_DEVICE_CROS_VBOOT, +}; + +void jump_to_spl(ulong entry); + +#endif diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 56fd680033b..436252dd831 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -43,7 +43,14 @@ ifndef CONFIG_SPL_BUILD obj-$(CONFIG_CMD_ZBOOT) += zimage.o endif obj-$(CONFIG_HAVE_FSP) += fsp/ -obj-$(CONFIG_SPL_BUILD) += spl.o + +ifdef CONFIG_SPL_BUILD +ifdef CONFIG_TPL_BUILD +obj-y += tpl.o +else +obj-y += spl.o +endif +endif
lib-$(CONFIG_USE_PRIVATE_LIBGCC) += div64.o
diff --git a/arch/x86/lib/spl.c b/arch/x86/lib/spl.c index 7d290740bfa..5d5d1a9ca74 100644 --- a/arch/x86/lib/spl.c +++ b/arch/x86/lib/spl.c @@ -5,8 +5,10 @@
#include <common.h> #include <debug_uart.h> +#include <malloc.h> #include <spl.h> #include <asm/cpu.h> +#include <asm/mrccache.h> #include <asm/mtrr.h> #include <asm/processor.h> #include <asm-generic/sections.h> @@ -20,6 +22,7 @@ __weak int arch_cpu_init_dm(void)
static int x86_spl_init(void) { +#ifndef CONFIG_TPL /* * TODO(sjg@chromium.org): We use this area of RAM for the stack * and global_data in SPL. Once U-Boot starts up and releocates it @@ -27,6 +30,7 @@ static int x86_spl_init(void) * place it immediately below CONFIG_SYS_TEXT_BASE. */ char *ptr = (char *)0x110000; +#endif int ret;
debug("%s starting\n", __func__); @@ -35,27 +39,44 @@ static int x86_spl_init(void) debug("%s: spl_init() failed\n", __func__); return ret; } +#ifdef CONFIG_TPL + /* Do a mini-init if TPL has already done the full init */ + ret = x86_cpu_reinit_f(); +#else ret = arch_cpu_init(); +#endif if (ret) { debug("%s: arch_cpu_init() failed\n", __func__); return ret; } +#ifndef CONFIG_TPL ret = arch_cpu_init_dm(); if (ret) { debug("%s: arch_cpu_init_dm() failed\n", __func__); return ret; } +#endif preloader_console_init(); +#ifndef CONFIG_TPL ret = print_cpuinfo(); if (ret) { debug("%s: print_cpuinfo() failed\n", __func__); return ret; } +#endif ret = dram_init(); if (ret) { debug("%s: dram_init() failed\n", __func__); return ret; } + if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE)) { + ret = mrccache_spl_save(); + if (ret) + debug("%s: Failed to write to mrccache (err=%d)\n", + __func__, ret); + } + +#ifndef CONFIG_TPL memset(&__bss_start, 0, (ulong)&__bss_end - (ulong)&__bss_start);
/* TODO(sjg@chromium.org): Consider calling cpu_init_r() here */ @@ -80,9 +101,11 @@ static int x86_spl_init(void) (1ULL << 32) - CONFIG_XIP_ROM_SIZE, CONFIG_XIP_ROM_SIZE); if (ret) { - debug("%s: SPI cache setup failed\n", __func__); + debug("%s: SPI cache setup failed (err=%d)\n", __func__, ret); return ret; } + mtrr_commit(true); +#endif
return 0; } @@ -96,9 +119,17 @@ void board_init_f(ulong flags) debug("Error %d\n", ret); hang(); } - +#ifdef CONFIG_TPL + gd->bd = malloc(sizeof(*gd->bd)); + if (!gd->bd) { + printf("Out of memory for bd_info size %x\n", sizeof(*gd->bd)); + hang(); + } + board_init_r(gd, 0); +#else /* Uninit CAR and jump to board_init_f_r() */ board_init_f_r_trampoline(gd->start_addr_sp); +#endif }
void board_init_f_r(void) @@ -144,6 +175,7 @@ int spl_spi_load_image(void) return -EPERM; }
+#ifdef CONFIG_X86_RUN_64BIT void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) { int ret; @@ -154,3 +186,11 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) while (1) ; } +#endif + +void spl_board_init(void) +{ +#ifndef CONFIG_TPL + preloader_console_init(); +#endif +} diff --git a/arch/x86/lib/tpl.c b/arch/x86/lib/tpl.c new file mode 100644 index 00000000000..492a2d65216 --- /dev/null +++ b/arch/x86/lib/tpl.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 Google, Inc + */ + +#include <common.h> +#include <debug_uart.h> +#include <spl.h> +#include <asm/cpu.h> +#include <asm/mtrr.h> +#include <asm/processor.h> +#include <asm-generic/sections.h> + +DECLARE_GLOBAL_DATA_PTR; + +__weak int arch_cpu_init_dm(void) +{ + return 0; +} + +static int x86_tpl_init(void) +{ + int ret; + + debug("%s starting\n", __func__); + ret = spl_init(); + if (ret) { + debug("%s: spl_init() failed\n", __func__); + return ret; + } + ret = arch_cpu_init(); + if (ret) { + debug("%s: arch_cpu_init() failed\n", __func__); + return ret; + } + ret = arch_cpu_init_dm(); + if (ret) { + debug("%s: arch_cpu_init_dm() failed\n", __func__); + return ret; + } + preloader_console_init(); + ret = print_cpuinfo(); + if (ret) { + debug("%s: print_cpuinfo() failed\n", __func__); + return ret; + } + + return 0; +} + +void board_init_f(ulong flags) +{ + int ret; + + ret = x86_tpl_init(); + if (ret) { + debug("Error %d\n", ret); + hang(); + } + + /* Uninit CAR and jump to board_init_f_r() */ + board_init_r(gd, 0); +} + +void board_init_f_r(void) +{ + /* Not used since we never call board_init_f_r_trampoline() */ + while (1); +} + +u32 spl_boot_device(void) +{ + return IS_ENABLED(CONFIG_CHROMEOS) ? BOOT_DEVICE_CROS_VBOOT : + BOOT_DEVICE_BOARD; +} + +int spl_start_uboot(void) +{ + return 0; +} + +void spl_board_announce_boot_device(void) +{ + printf("SPI flash"); +} + +static int spl_board_load_image(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev) +{ + spl_image->size = CONFIG_SYS_MONITOR_LEN; /* We don't know SPL size */ + spl_image->entry_point = CONFIG_SPL_TEXT_BASE; + spl_image->load_addr = CONFIG_SPL_TEXT_BASE; + spl_image->os = IH_OS_U_BOOT; + spl_image->name = "U-Boot"; + + debug("Loading to %lx\n", spl_image->load_addr); + + return 0; +} +SPL_LOAD_IMAGE_METHOD("SPI", 0, BOOT_DEVICE_BOARD, spl_board_load_image); + +int spl_spi_load_image(void) +{ + return -EPERM; +} + +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) +{ + printf("Jumping to U-Boot SPL at %lx\n", (ulong)spl_image->entry_point); + jump_to_spl(spl_image->entry_point); + while (1) + ; +} + +void spl_board_init(void) +{ + preloader_console_init(); +} diff --git a/include/configs/chromebook_link.h b/include/configs/chromebook_link.h index ca592768925..f26e463fe53 100644 --- a/include/configs/chromebook_link.h +++ b/include/configs/chromebook_link.h @@ -18,9 +18,6 @@ #define CONFIG_ENV_SECT_SIZE 0x1000 #define CONFIG_ENV_OFFSET 0x003f8000
-#define BOOT_DEVICE_SPI 10 - #define CONFIG_SPL_BOARD_LOAD_IMAGE -#define BOOT_DEVICE_BOARD 11
#endif /* __CONFIG_H */ diff --git a/include/configs/qemu-x86.h b/include/configs/qemu-x86.h index 4cd1cac3bd2..64e7a60b8a0 100644 --- a/include/configs/qemu-x86.h +++ b/include/configs/qemu-x86.h @@ -33,11 +33,6 @@ #define CONFIG_SYS_ATA_IDE1_OFFSET 0x170 #define CONFIG_ATAPI
-/* SPI is not supported */ - -#define BOOT_DEVICE_SPI 10 - #define CONFIG_SPL_BOARD_LOAD_IMAGE -#define BOOT_DEVICE_BOARD 11
#endif /* __CONFIG_H */