[][mt7986: Add emmc image]
[Description]
Add mmc image, enable related kernel options and dts.
[Release-log]
N/A
Change-Id: I1727e72b19c67f971d9fab00f12ef6456dccc70d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4632363
diff --git a/target/linux/mediatek/image/gen_mt7986_emmc_img.sh b/target/linux/mediatek/image/gen_mt7986_emmc_img.sh
new file mode 100755
index 0000000..d74068c
--- /dev/null
+++ b/target/linux/mediatek/image/gen_mt7986_emmc_img.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+OUTPUT_FILE=$1
+KERNEL_FILE=$2
+RECOVERY_FILE=$3
+ROOTFS_FILE=$4
+
+BS=512
+
+#RECOVERY_OFFSET= kernel size / BS = 20M / 512 (blocks)
+RECOVERY_OFFSET=40960
+
+#ROOTFS_OFFSET = RECOVERY_OFFSET + (RECOVERY_SIZE / BS)
+# = 40960 + (10M / 512) (blocks)
+ROOTFS_OFFSET=61440
+dd bs="$BS" of="$OUTPUT_FILE" if="$KERNEL_FILE"
+dd bs="$BS" of="$OUTPUT_FILE" if="$RECOVERY_FILE" seek="$RECOVERY_OFFSET"
+dd bs="$BS" of="$OUTPUT_FILE" if="$ROOTFS_FILE" seek="$ROOTFS_OFFSET"
+dd if=/dev/zero of="$OUTPUT_FILE" bs=128k count=1 oflag=append conv=notrunc