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fdt: Skip checking FDT if the pointer is NULL

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If we have no FDT, don't attempt to read from it. This allows sandbox to
run without an FDT if required.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2013-04-20 08:42:46 +00:00
committed by Tom Rini
parent a92fd6577e
commit c309c2da14
1 changed files with 2 additions and 1 deletions
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3
lib/fdtdec.c
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@@ -354,7 +354,8 @@ int fdtdec_check_fdt(void)
*/
int fdtdec_prepare_fdt(void)
{
if (((uintptr_t)gd->fdt_blob & 3) || fdt_check_header(gd->fdt_blob)) {
if (!gd->fdt_blob || ((uintptr_t)gd->fdt_blob & 3) ||
fdt_check_header(gd->fdt_blob)) {
printf("No valid FDT found - please append one to U-Boot "
"binary, use u-boot-dtb.bin or define "
"CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>\n");