diff --git a/obmc-flash-bmc b/obmc-flash-bmc
index b76ad62..833a565 100644
--- a/obmc-flash-bmc
+++ b/obmc-flash-bmc
@@ -629,6 +629,33 @@
     fw_setenv bootside "${flashid}"
 }
 
+function mmc_mirroruboot() {
+    # Get current boot device; 0-primary_bootdev device; 1 - alt_bootdev
+    bootdev=$(cat /sys/kernel/debug/aspeed/sbc/abr_image)
+    if [[ "${bootdev}" == "0" ]]; then
+        bootPartition="mmcblk0boot0"
+        alt_bootPartition="mmcblk0boot1"
+    else
+        bootPartition="mmcblk0boot1"
+        alt_bootPartition="mmcblk0boot0"
+    fi
+
+    devUBoot="/dev/${bootPartition}"
+    alt_devUBoot="/dev/${alt_bootPartition}"
+
+    checksum_UBoot="$(md5sum "${devUBoot}")"
+    checksum_UBoot="${checksum_UBoot% *}"
+    checksum_alt_UBoot="$(md5sum "${alt_devUBoot}")"
+    checksum_alt_UBoot="${checksum_alt% *}"
+
+    if [[ "${checksum_UBoot}" != "${checksum_alt_UBoot}" ]]; then
+        echo "Mirroring U-boot to alt chip"
+        echo 0 > "/sys/block/${alt_bootPartition}/force_ro"
+        dd if="${devUBoot}" of="${alt_devUBoot}"
+        echo 1 > "/sys/block/${alt_bootPartition}/force_ro"
+    fi
+}
+
 case "$1" in
     mtduboot)
         reqmtd="$2"
@@ -709,6 +736,9 @@
         flashid="$2"
         mmc_setprimary
         ;;
+    mmc-mirroruboot)
+        mmc_mirroruboot
+        ;;
     static-altfs)
         mount_static_alt "$2" "$3" "$4"
         ;;