This commit prints out DTB build information (build time, dts source
version used, ...) if "Build-info" property exists in DTB root node.
Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxx>
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 2cdf64d2456f..df5f54f9582a 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1224,9 +1224,18 @@ bool __init early_init_dt_scan(void *params)
*/
void __init unflatten_device_tree(void)
{
+ const char *build_info;
+ unsigned long dt_root;
+
__unflatten_device_tree(initial_boot_params, NULL, &of_root,
early_init_dt_alloc_memory_arch, false);
+ /* If available, provide dtb build information */
+ dt_root = of_get_flat_dt_root();
+ build_info = of_get_flat_dt_prop(dt_root, "Build-info", NULL);
+ if (build_info)
+ pr_info("%s\n", build_info);
+
/* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */
of_alias_scan(early_init_dt_alloc_memory_arch);
--
2.17.1
