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spl: Add option to enable SPL Legacy image support

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Add a Kconfig option that enables Legacy image support, this allows
boards to explicitly disable this, for instance when needed for
security reasons.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Move to common/spl/Kconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Andrew F. Davis 2017-02-16 11:18:39 -06:00 • committed by Tom Rini
parent 24eb39b575
commit 722a6b1741
2 changed files with 16 additions and 2 deletions
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8
common/spl/Kconfig
View file

@ -23,6 +23,14 @@ config SPL_RAW_IMAGE_SUPPORT
is y. If this is not set, SPL will move on to other available is y. If this is not set, SPL will move on to other available
boot media to find a suitable image. boot media to find a suitable image.
config SPL_LEGACY_IMAGE_SUPPORT
bool "Support SPL loading and booting of Legacy images"
default y
help
SPL will support loading and booting Legacy images when this option
is y. If this is not set, SPL will move on to other available
boot media to find a suitable image.
config SPL_SYS_MALLOC_SIMPLE config SPL_SYS_MALLOC_SIMPLE
bool bool
depends on SPL depends on SPL

10
common/spl/spl.c
View file

@ -93,9 +93,10 @@ void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
int spl_parse_image_header(struct spl_image_info *spl_image, int spl_parse_image_header(struct spl_image_info *spl_image,
const struct image_header *header) const struct image_header *header)
{ {
u32 header_size = sizeof(struct image_header);
if (image_get_magic(header) == IH_MAGIC) { if (image_get_magic(header) == IH_MAGIC) {
#ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
u32 header_size = sizeof(struct image_header);
if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) { if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
/* /*
* On some system (e.g. powerpc), the load-address and * On some system (e.g. powerpc), the load-address and
@ -118,6 +119,11 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
debug("spl: payload image: %.*s load addr: 0x%lx size: %d\n", debug("spl: payload image: %.*s load addr: 0x%lx size: %d\n",
(int)sizeof(spl_image->name), spl_image->name, (int)sizeof(spl_image->name), spl_image->name,
spl_image->load_addr, spl_image->size); spl_image->load_addr, spl_image->size);
#else
/* LEGACY image not supported */
debug("Legacy boot image support not enabled, proceeding to other boot methods");
return -EINVAL;
#endif
} else { } else {
#ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
/* /*