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https://github.com/brain-hackers/u-boot-brain
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![Simon Glass](/assets/img/avatar_default.png)
Add the required CPU code so that TPL builds correctly. Also update the SPL code to deal with being booted from TPL. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
119 lines
2.1 KiB
C
119 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_BOARD;
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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", 0, BOOT_DEVICE_BOARD, 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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while (1)
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;
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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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