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https://github.com/u-boot/u-boot.git
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123 lines
3.0 KiB
C
123 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2012 Stefan Roese <sr@denx.de>
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*/
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#include <common.h>
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#include <image.h>
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#include <log.h>
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#include <spl.h>
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static ulong spl_nor_load_read(struct spl_load_info *load, ulong sector,
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ulong count, void *buf)
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{
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debug("%s: sector %lx, count %lx, buf %p\n",
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__func__, sector, count, buf);
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memcpy(buf, (void *)sector, count);
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return count;
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}
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unsigned long __weak spl_nor_get_uboot_base(void)
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{
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return CONFIG_SYS_UBOOT_BASE;
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}
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static int spl_nor_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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__maybe_unused const struct image_header *header;
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__maybe_unused struct spl_load_info load;
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/*
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* Loading of the payload to SDRAM is done with skipping of
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* the mkimage header in this SPL NOR driver
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*/
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spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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/*
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* Load Linux from its location in NOR flash to its defined
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* location in SDRAM
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*/
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header = (const struct image_header *)CONFIG_SYS_OS_BASE;
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#ifdef CONFIG_SPL_LOAD_FIT
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if (image_get_magic(header) == FDT_MAGIC) {
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int ret;
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debug("Found FIT\n");
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load.bl_len = 1;
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load.read = spl_nor_load_read;
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ret = spl_load_simple_fit(spl_image, &load,
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CONFIG_SYS_OS_BASE,
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(void *)header);
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#if defined CONFIG_SYS_SPL_ARGS_ADDR && defined CONFIG_CMD_SPL_NOR_OFS
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memcpy((void *)CONFIG_SYS_SPL_ARGS_ADDR,
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(void *)CONFIG_CMD_SPL_NOR_OFS,
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CONFIG_CMD_SPL_WRITE_SIZE);
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#endif
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return ret;
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}
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#endif
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if (image_get_os(header) == IH_OS_LINUX) {
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/* happy - was a Linux */
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int ret;
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ret = spl_parse_image_header(spl_image, header);
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if (ret)
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return ret;
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memcpy((void *)spl_image->load_addr,
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(void *)(CONFIG_SYS_OS_BASE +
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sizeof(struct image_header)),
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spl_image->size);
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#ifdef CONFIG_SYS_FDT_BASE
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spl_image->arg = (void *)CONFIG_SYS_FDT_BASE;
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#endif
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return 0;
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} else {
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puts("The Expected Linux image was not found.\n"
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"Please check your NOR configuration.\n"
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"Trying to start u-boot now...\n");
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}
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}
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#endif
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/*
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* Load real U-Boot from its location in NOR flash to its
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* defined location in SDRAM
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*/
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#ifdef CONFIG_SPL_LOAD_FIT
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header = (const struct image_header *)spl_nor_get_uboot_base();
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if (image_get_magic(header) == FDT_MAGIC) {
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debug("Found FIT format U-Boot\n");
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load.bl_len = 1;
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load.read = spl_nor_load_read;
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return spl_load_simple_fit(spl_image, &load,
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spl_nor_get_uboot_base(),
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(void *)header);
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}
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#endif
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if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
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load.bl_len = 1;
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load.read = spl_nor_load_read;
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return spl_load_imx_container(spl_image, &load,
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spl_nor_get_uboot_base());
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}
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/* Legacy image handling */
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if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_SUPPORT)) {
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load.bl_len = 1;
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load.read = spl_nor_load_read;
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return spl_load_legacy_img(spl_image, &load,
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spl_nor_get_uboot_base());
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}
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return 0;
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}
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SPL_LOAD_IMAGE_METHOD("NOR", 0, BOOT_DEVICE_NOR, spl_nor_load_image);
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