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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016
* Xilinx, Inc.
*
* (C) Copyright 2016
* Toradex AG
*
* Michal Simek <michal.simek@amd.com>
* Stefan Agner <stefan.agner@toradex.com>
*/
#include <binman_sym.h>
#include <image.h>
#include <log.h>
#include <mapmem.h>
#include <spl.h>
#include <linux/libfdt.h>
static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
ulong count, void *buf)
{
ulong addr = 0;
debug("%s: sector %lx, count %lx, buf %lx\n",
__func__, sector, count, (ulong)buf);
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
addr = IF_ENABLED_INT(CONFIG_SPL_LOAD_FIT,
CONFIG_SPL_LOAD_FIT_ADDRESS);
}
addr += sector;
if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD))
addr += image_load_offset;
memcpy(buf, (void *)addr, count);
return count;
}
static int spl_ram_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
struct legacy_img_hdr *header;
ulong addr = 0;
int ret;
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
addr = IF_ENABLED_INT(CONFIG_SPL_LOAD_FIT,
CONFIG_SPL_LOAD_FIT_ADDRESS);
}
if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD)) {
ret = image_pre_load(addr);
if (ret)
return ret;
addr += image_load_offset;
}
header = map_sysmem(addr, 0);
#if CONFIG_IS_ENABLED(DFU)
if (bootdev->boot_device == BOOT_DEVICE_DFU)
spl_dfu_cmd(0, "dfu_alt_info_ram", "ram", "0");
#endif
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
image_get_magic(header) == FDT_MAGIC) {
struct spl_load_info load;
debug("Found FIT\n");
spl_set_bl_len(&load, 1);
load.read = spl_ram_load_read;
ret = spl_load_simple_fit(spl_image, &load, 0, header);
} else {
ulong u_boot_pos = spl_get_image_pos();
debug("Legacy image\n");
/*
* Get the header. It will point to an address defined by
* handoff which will tell where the image located inside
* the flash.
*/
debug("u_boot_pos = %lx\n", u_boot_pos);
if (u_boot_pos == BINMAN_SYM_MISSING) {
/*
* No binman support or no information. For now, fix it
* to the address pointed to by U-Boot.
*/
u_boot_pos = (ulong)spl_get_load_buffer(-sizeof(*header),
sizeof(*header));
}
header = map_sysmem(u_boot_pos, 0);
ret = spl_parse_image_header(spl_image, bootdev, header);
}
return ret;
}
#if CONFIG_IS_ENABLED(RAM_DEVICE)
SPL_LOAD_IMAGE_METHOD("RAM", 0, BOOT_DEVICE_RAM, spl_ram_load_image);
#endif
#if CONFIG_IS_ENABLED(DFU)
SPL_LOAD_IMAGE_METHOD("DFU", 0, BOOT_DEVICE_DFU, spl_ram_load_image);
#endif
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