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SPL: FIT: Enable SPL_FIT_LOAD in RAM based boot mode

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Support loading FIT in SPL for RAM bootmode.
CONFIG_SPL_LOAD_FIT_ADRESS points to address where FIT image is stored
in memory.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Michal Simek
2016-04-28 09:54:16 +02:00
parent f44e603f73
commit 8d16e1d593
1 changed files with 36 additions and 9 deletions
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45
common/spl/spl.c
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@ -140,20 +140,47 @@ __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
image_entry(); image_entry();
} }
#ifndef CONFIG_SPL_LOAD_FIT_ADDRESS
# define CONFIG_SPL_LOAD_FIT_ADDRESS 0
#endif
#ifdef CONFIG_SPL_RAM_DEVICE #ifdef CONFIG_SPL_RAM_DEVICE
static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
ulong count, void *buf)
{
debug("%s: sector %lx, count %lx, buf %lx\n",
__func__, sector, count, (ulong)buf);
memcpy(buf, (void *)(CONFIG_SPL_LOAD_FIT_ADDRESS + sector), count);
return count;
}
static int spl_ram_load_image(void) static int spl_ram_load_image(void)
{ {
const struct image_header *header; struct image_header *header;
/* header = (struct image_header *)CONFIG_SPL_LOAD_FIT_ADDRESS;
* Get the header. It will point to an address defined by handoff
* which will tell where the image located inside the flash. For
* now, it will temporary fixed to address pointed by U-Boot.
*/
header = (struct image_header *)
(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
spl_parse_image_header(header); if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
image_get_magic(header) == FDT_MAGIC) {
struct spl_load_info load;
debug("Found FIT\n");
load.bl_len = 1;
load.read = spl_ram_load_read;
spl_load_simple_fit(&load, 0, header);
} else {
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. For now, it will temporary fixed to address
* pointed by U-Boot.
*/
header = (struct image_header *)
(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
spl_parse_image_header(header);
}
return 0; return 0;
} }