mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
90 lines
2.2 KiB
C
90 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 <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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