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fdt: Enable selecting correct DTB from appended FIT Image

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This patch gives U-boot the runtime support to have the board specific
code decide which FDT to use. This is especially useful for devices
that need this type of runtime determination and also doesn't use SPL.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Cooper Jr., Franklin 2017-06-16 17:25:07 -05:00 committed by Tom Rini
parent 92926bc80c
commit 2059ecf30f
1 changed files with 10 additions and 0 deletions
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10
lib/fdtdec.c
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@ -4,6 +4,7 @@
*/
#ifndef USE_HOSTCC
#include <boot_fit.h>
#include <common.h>
#include <dm.h>
#include <errno.h>
@ -1221,6 +1222,15 @@ int fdtdec_setup(void)
gd->fdt_blob = (ulong *)&_image_binary_end;
else
gd->fdt_blob = (ulong *)&__bss_end;
# elif defined CONFIG_FIT_EMBED
gd->fdt_blob = locate_dtb_in_fit(&_end);
if (gd->fdt_blob == NULL || gd->fdt_blob <= ((void *)&_end)) {
puts("Failed to find proper dtb in embedded FIT Image\n");
return -1;
}
# else
/* FDT is at end of image */
gd->fdt_blob = (ulong *)&_end;