add support to generate uboot environment images

create uboot environment images to populate the sdcard
images.  This allows non-default uboot environments to be
used without the need for changing / patching uboot

1 files changed, 8 insertions, 1 deletions

diff --git a/classes/sdcard_image-socfpga.bbclass b/classes/sdcard_image-socfpga.bbclass
index 879c2c1..8ac12b1 100644
--- a/classes/sdcard_image-socfpga.bbclass
+++ b/classes/sdcard_image-socfpga.bbclass
@@ -24,6 +24,9 @@ BOOT_SPACE ?= "2048"
 # Fat partition size
 FAT_SPACE ?= "102400"
 
+# uBoot ENV offset
+SDIMG_UBOOT_ENV_OFFSET ?= "512"
+
 # Boot partition begin at sector 1024
 # This is required as for c5/a5 mainline uboot hard codes the location
 # of the uboot image in the sdcard to 0xa00 sector
@@ -167,6 +170,10 @@ IMAGE_CMD_socfpga-sdimg () {
             dd if=${DEPLOY_DIR_IMAGE}/${SPL_BINARY} of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
         else
             bbfatal "${SPL_BINARY} does not exist."
-        fi      
+        fi
+        
+        if [ -e "${DEPLOY_DIR_IMAGE}/u-boot-env-${ENV_BASE_NAME}.bin" ]; then 
+                dd if=${DEPLOY_DIR_IMAGE}/u-boot-env-${ENV_BASE_NAME}.bin of=${SDIMG} bs=1 seek=${SDIMG_UBOOT_ENV_OFFSET}
+        fi
         
 }