mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 03:06:16 +09:00
daade119aa
This image loader works on systems where the flash is directly mapped to the last part of the 32-bit address space. On recent Intel systems (such as apollolake) this is not the case. Reduce the priority of this loader so that another one can override it. While we are here, rename the loader to BOOT_DEVICE_SPI_MMAP since BOOT_DEVICE_BOARD is not very descriptive. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
118 lines
2.1 KiB
C
118 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2018 Google, Inc
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*/
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#include <common.h>
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#include <debug_uart.h>
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#include <spl.h>
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#include <asm/cpu.h>
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#include <asm/mtrr.h>
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#include <asm/processor.h>
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#include <asm-generic/sections.h>
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DECLARE_GLOBAL_DATA_PTR;
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__weak int arch_cpu_init_dm(void)
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{
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return 0;
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}
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static int x86_tpl_init(void)
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{
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int ret;
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debug("%s starting\n", __func__);
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ret = spl_init();
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if (ret) {
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debug("%s: spl_init() failed\n", __func__);
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return ret;
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}
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ret = arch_cpu_init();
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if (ret) {
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debug("%s: arch_cpu_init() failed\n", __func__);
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return ret;
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}
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ret = arch_cpu_init_dm();
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if (ret) {
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debug("%s: arch_cpu_init_dm() failed\n", __func__);
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return ret;
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}
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preloader_console_init();
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ret = print_cpuinfo();
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if (ret) {
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debug("%s: print_cpuinfo() failed\n", __func__);
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return ret;
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}
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return 0;
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}
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void board_init_f(ulong flags)
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{
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int ret;
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ret = x86_tpl_init();
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if (ret) {
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debug("Error %d\n", ret);
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hang();
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}
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/* Uninit CAR and jump to board_init_f_r() */
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board_init_r(gd, 0);
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}
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void board_init_f_r(void)
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{
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/* Not used since we never call board_init_f_r_trampoline() */
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while (1);
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}
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u32 spl_boot_device(void)
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{
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return IS_ENABLED(CONFIG_CHROMEOS) ? BOOT_DEVICE_CROS_VBOOT :
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BOOT_DEVICE_SPI_MMAP;
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}
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int spl_start_uboot(void)
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{
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return 0;
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}
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void spl_board_announce_boot_device(void)
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{
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printf("SPI flash");
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}
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static int spl_board_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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spl_image->size = CONFIG_SYS_MONITOR_LEN; /* We don't know SPL size */
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spl_image->entry_point = CONFIG_SPL_TEXT_BASE;
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spl_image->load_addr = CONFIG_SPL_TEXT_BASE;
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spl_image->os = IH_OS_U_BOOT;
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spl_image->name = "U-Boot";
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debug("Loading to %lx\n", spl_image->load_addr);
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return 0;
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}
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SPL_LOAD_IMAGE_METHOD("SPI", 5, BOOT_DEVICE_SPI_MMAP, spl_board_load_image);
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int spl_spi_load_image(void)
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{
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return -EPERM;
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}
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void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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{
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printf("Jumping to U-Boot SPL at %lx\n", (ulong)spl_image->entry_point);
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jump_to_spl(spl_image->entry_point);
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hang();
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}
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void spl_board_init(void)
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{
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preloader_console_init();
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}
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