image_types_fsl.bbclass: add support to skip u-boot padding

u-boot-imx has padding by default and machines using it need to skip
it when generating the sdcard.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

1 files changed, 2 insertions, 1 deletions

diff --git a/classes/image_types_fsl.bbclass b/classes/image_types_fsl.bbclass
index 36f0894..a43e4c6 100644
--- a/classes/image_types_fsl.bbclass
+++ b/classes/image_types_fsl.bbclass
@@ -4,6 +4,7 @@ IMAGE_BOOTLOADER ?= "u-boot"
 
 # Handle u-boot suffixes
 UBOOT_SUFFIX ?= "bin"
+UBOOT_PADDING ?= "0"
 
 #
 # Create an image that can by written onto a SD card using dd.
@@ -51,7 +52,7 @@ IMAGE_CMD_sdcard () {
 
         case "${IMAGE_BOOTLOADER}" in
                 u-boot)
-                dd if=${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX} of=${SDCARD} conv=notrunc seek=2 bs=512
+                dd if=${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX} of=${SDCARD} conv=notrunc seek=2 skip=${UBOOT_PADDING} bs=512
                 ;;
                 barebox)
                 dd if=${DEPLOY_DIR_IMAGE}/barebox-${MACHINE}.bin of=${SDCARD} conv=notrunc seek=1 skip=1 bs=512