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SPL: Add support for parsing board / BootROM specific image types 

Platform specific BootROM may use its own image type for loading SPL or
U-Boot proper. In some cases it makes sense to not use BootROM supplied
code for booting U-Boot proper but rather to use U-Boot SPL for this,
e.g. when U-Boot SPL can load U-Boot proper faster than BootROM. In this
case it is required for platform board code to parse and load U-Boot in
BootROM specific image type.

This change adds support for parsing platform / board / BootROM specific
image types via weak function spl_parse_board_header() which is called
before marking boot image as a raw.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2021-07-23 11:14:28 +02:00 committed by Stefan Roese
parent 5fce287556
commit 9baab60b80
1 changed files with 9 additions and 0 deletions
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9
common/spl/spl.c
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@ -300,6 +300,12 @@ static int spl_load_fit_image(struct spl_image_info *spl_image,
}
#endif
__weak int spl_parse_board_header(struct spl_image_info *spl_image,
const void *image_header, size_t size)
{
return -EINVAL;
}
__weak int spl_parse_legacy_header(struct spl_image_info *spl_image,
const struct image_header *header)
{
@ -352,6 +358,9 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
}
#endif
if (!spl_parse_board_header(spl_image, (const void *)header, sizeof(*header)))
return 0;
#ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
/* Signature not found - assume u-boot.bin */
debug("mkimage signature not found - ih_magic = %x\n",