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spl: nand: support loading legacy image with payload compressed

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Add support to load legacy image with payload compressed. This redirects
the boot flow for all legacy images. If the payload is not compressed, the
actual behavior will remain unchanged.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
This commit is contained in:
Weijie Gao 2022-05-20 11:24:04 +08:00 committed by Daniel Schwierzeck
parent fdc03bf4e9
commit 4620e8aabc
1 changed files with 27 additions and 0 deletions
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27
common/spl/spl_nand.c
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@ -56,6 +56,21 @@ static ulong spl_nand_fit_read(struct spl_load_info *load, ulong offs,
return size / load->bl_len;
}
static ulong spl_nand_legacy_read(struct spl_load_info *load, ulong offs,
ulong size, void *dst)
{
int err;
debug("%s: offs %lx, size %lx, dst %p\n",
__func__, offs, size, dst);
err = nand_spl_load_image(offs, size, dst);
if (err)
return 0;
return size;
}
struct mtd_info * __weak nand_get_mtd(void)
{
return NULL;
@ -93,6 +108,18 @@ static int spl_nand_load_element(struct spl_image_info *spl_image,
load.bl_len = bl_len;
load.read = spl_nand_fit_read;
return spl_load_imx_container(spl_image, &load, offset / bl_len);
} else if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_FORMAT) &&
image_get_magic(header) == IH_MAGIC) {
struct spl_load_info load;
debug("Found legacy image\n");
load.dev = NULL;
load.priv = NULL;
load.filename = NULL;
load.bl_len = 1;
load.read = spl_nand_legacy_read;
return spl_load_legacy_img(spl_image, bootdev, &load, offset);
} else {
err = spl_parse_image_header(spl_image, bootdev, header);
if (err)