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https://github.com/brain-hackers/u-boot-brain
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![Chia-Wei, Wang](/assets/img/avatar_default.png)
Add low level platform initialization for the AST2600 SoC. The 2-stage booting with U-Boot SPL are leveraged to support different booting mode. However, currently the patch supports only the booting from memory-mapped SPI flash. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com> Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) Aspeed Technology 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 <dm.h>
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#include <spl.h>
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#include <init.h>
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#include <asm/io.h>
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#include <asm/arch/scu_ast2600.h>
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DECLARE_GLOBAL_DATA_PTR;
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void board_init_f(ulong dummy)
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{
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spl_early_init();
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preloader_console_init();
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timer_init();
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dram_init();
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}
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u32 spl_boot_device(void)
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{
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return BOOT_DEVICE_RAM;
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}
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struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
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{
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/*
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* When boot from SPI, AST2600 already remap 0x00000000 ~ 0x0fffffff
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* to BMC SPI memory space 0x20000000 ~ 0x2fffffff. The next stage BL
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* has been located in SPI for XIP. In this case, the load buffer for
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* SPL image loading will be set to the remapped address of the next
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* BL instead of the DRAM space CONFIG_SYS_LOAD_ADDR
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*/
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return (struct image_header *)(CONFIG_SYS_TEXT_BASE);
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}
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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/* boot linux */
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return 0;
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}
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#endif
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#ifdef CONFIG_SPL_LOAD_FIT
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int board_fit_config_name_match(const char *name)
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{
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/* just empty function now - can't decide what to choose */
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debug("%s: %s\n", __func__, name);
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return 0;
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}
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#endif
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