mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 07:16:04 +09:00
db41d65a97
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2013 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <cpu_func.h>
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#include <hang.h>
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#include <spi_flash.h>
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#include <malloc.h>
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#define ESPI_BOOT_IMAGE_SIZE 0x48
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#define ESPI_BOOT_IMAGE_ADDR 0x50
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#define CONFIG_CFG_DATA_SECTOR 0
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void fsl_spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst)
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{
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struct spi_flash *flash;
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flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (flash == NULL) {
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puts("\nspi_flash_probe failed");
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hang();
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}
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spi_flash_read(flash, offs, size, vdst);
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}
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/*
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* The main entry for SPI booting. It's necessary that SDRAM is already
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* configured and available since this code loads the main U-Boot image
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* from SPI into SDRAM and starts it from there.
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*/
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void fsl_spi_boot(void)
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{
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void (*uboot)(void) __noreturn;
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u32 offset, code_len, copy_len = 0;
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#ifndef CONFIG_FSL_CORENET
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unsigned char *buf = NULL;
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#endif
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struct spi_flash *flash;
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flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
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CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
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if (flash == NULL) {
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puts("\nspi_flash_probe failed");
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hang();
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}
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#ifdef CONFIG_FSL_CORENET
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offset = CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS;
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code_len = CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE;
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#else
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/*
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* Load U-Boot image from SPI flash into RAM
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*/
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buf = malloc(flash->page_size);
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if (buf == NULL) {
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puts("\nmalloc failed");
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hang();
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}
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memset(buf, 0, flash->page_size);
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spi_flash_read(flash, CONFIG_CFG_DATA_SECTOR,
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flash->page_size, (void *)buf);
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offset = *(u32 *)(buf + ESPI_BOOT_IMAGE_ADDR);
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/* Skip spl code */
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offset += CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS;
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/* Get the code size from offset 0x48 */
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code_len = *(u32 *)(buf + ESPI_BOOT_IMAGE_SIZE);
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/* Skip spl code */
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code_len = code_len - CONFIG_SPL_MAX_SIZE;
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#endif
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/* copy code to DDR */
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printf("Loading second stage boot loader ");
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while (copy_len <= code_len) {
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spi_flash_read(flash, offset + copy_len, 0x2000,
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(void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST
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+ copy_len));
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copy_len = copy_len + 0x2000;
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putc('.');
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}
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/*
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* Jump to U-Boot image
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*/
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flush_cache(CONFIG_SYS_SPI_FLASH_U_BOOT_DST, code_len);
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uboot = (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_START;
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(*uboot)();
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}
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