u-boot/common/spl/spl_nor.c
Vikas Manocha 5bf5250e9d spl: make image arg or fdt blob address reconfigurable
At present fdt blob or argument address being passed to kernel is fixed at
compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob from
different media like nand, nor flash are copied to the address pointed
by the macro.
The problem is, it makes args/fdt blob compulsory to copy which is not required
in cases like for NOR Flash. This patch removes this limitation.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-08 11:38:40 -04:00

68 lines
1.6 KiB
C

/*
* Copyright (C) 2012 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spl.h>
static int spl_nor_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
int ret;
/*
* 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()) {
const struct image_header *header;
/*
* Load Linux from its location in NOR flash to its defined
* location in SDRAM
*/
header = (const struct image_header *)CONFIG_SYS_OS_BASE;
if (image_get_os(header) == IH_OS_LINUX) {
/* happy - was a Linux */
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);
spl_image->arg = (void *)CONFIG_SYS_FDT_BASE;
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
*/
ret = spl_parse_image_header(spl_image,
(const struct image_header *)CONFIG_SYS_UBOOT_BASE);
if (ret)
return ret;
memcpy((void *)(unsigned long)spl_image->load_addr,
(void *)(CONFIG_SYS_UBOOT_BASE + sizeof(struct image_header)),
spl_image->size);
return 0;
}
SPL_LOAD_IMAGE_METHOD("NOR", 0, BOOT_DEVICE_NOR, spl_nor_load_image);