[U-Boot] [PATCH v1] fdt: Allow non-FDT kernels to boot when CONFIG_OF_LIBFDT is defined

[Suriyan Ramasami]

The boot commands - bootz/bootm mandate a third argument which is the
address to the FDT blob. In cases where this argument is not specified,
boot fails with a message indicating a missing FDT.

This causes non-FDT kernels to fail to boot. This patch allows both FDT
and non-FDT kernels to boot by making the third parameter to the bootm/bootz
optional.

Signed-off-by: Suriyan Ramasami <suriyan.r at gmail.com>
---

Changes in v1:
- First try

 common/image-fdt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/image-fdt.c b/common/image-fdt.c
index a39ae1b..1a02166 100644
--- a/common/image-fdt.c
+++ b/common/image-fdt.c
@@ -430,6 +430,10 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
 error:
 	*of_flat_tree = NULL;
 	*of_size = 0;
+	if (argc <= 2) {
+		debug("Continuing to boot without FDT\n");
+		return 0;
+	}
 	return 1;
 }
 
-- 
1.8.3.1