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fdt: Provide debug info when a device tree cannot be found

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It can be quite confusing with a new platform to figure out why the device
tree cannot be located. Add some debug information for this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-06-23 15:39:09 -06:00
parent c4af6732c4
commit cb5f97f707
1 changed files with 7 additions and 0 deletions
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7
lib/fdtdec.c
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@ -568,6 +568,13 @@ int fdtdec_prepare_fdt(void)
puts("Missing DTB\n");
#else
puts("No valid device tree binary 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");
# ifdef DEBUG
if (gd->fdt_blob) {
printf("fdt_blob=%p\n", gd->fdt_blob);
print_buffer((ulong)gd->fdt_blob, gd->fdt_blob, 4,
32, 0);
}
# endif
#endif
return -1;
}