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