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authorSimon Glass <sjg@chromium.org>2015-06-23 15:39:09 -0600
committerSimon Glass <sjg@chromium.org>2015-07-21 17:39:28 -0600
commitcb5f97f70766fdabc90847bbbc25eb759b2b4797 (patch)
treed529ed0452d9fe19a022b99c95f97e3b1ce99ea3
parentc4af6732c4021ffe8b3d0c82bdcf1eebb263bfc3 (diff)
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fdt: Provide debug info when a device tree cannot be found
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>
-rw-r--r--lib/fdtdec.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index f6c2b19..232ca74 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -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;
}