[PATCH u-boot-mvebu 3/5] tools: kwboot: Fix inserting UART data checksum without -B option

["Pali Rohár" <pali@kernel.org>]

Commit 7665ed2fa04e ("tools: kwboot: Fix parsing UART image without data
checksum") added fixup code to insert place for data checksum if UART image
does not have it. Together with option -B (change baudrate), kwboot
calculates this checksum. Without option -B, it inserts only place for
checksum but does not calculate it.

This commit fix above logic and calculate data checksum also when kwboot is
used without -B option.

Fixes: 7665ed2fa04e ("tools: kwboot: Fix parsing UART image without data checksum")
Signed-off-by: Pali Rohár <pali@kernel.org>
---
 tools/kwboot.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/kwboot.c b/tools/kwboot.c
index dd894e80db1c..23a893a9b9f8 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -2082,6 +2082,8 @@ kwboot_img_patch(void *img, size_t *size, int baudrate)
 			goto err;
 		}
 		kwboot_img_grow_data_right(img, size, sizeof(uint32_t));
+		/* Update the 32-bit data checksum */
+		*kwboot_img_csum32_ptr(img) = kwboot_img_csum32(img);
 	}
 
 	if (!kwboot_img_has_ddr_init(img) &&
-- 
2.20.1