target/linux/mediatek/image/gen_mt7623_emmc_img.sh

   1 #!/usr/bin/env bash
   2
   3 OUTPUT_FILE=$1
   4 KERNEL_FILE=$2
   5 RECOVERY_FILE=$3
   6 ROOTFS_FILE=$4
   7
   8 BS=512
   9
  10 #These to offsets are relative to the absolute location of the kernel on the mmc
  11 #(0xA00), so their position in the image is -2560 blocks
  12 RECOVERY_OFFSET=67072
  13 ROOTFS_OFFSET=87552
  14
  15 dd bs="$BS" of="$OUTPUT_FILE" if="$KERNEL_FILE"
  16 dd bs="$BS" of="$OUTPUT_FILE" if="$RECOVERY_FILE" seek="$RECOVERY_OFFSET"
  17 dd bs="$BS" of="$OUTPUT_FILE" if="$ROOTFS_FILE" seek="$ROOTFS_OFFSET"
  18 dd if=/dev/zero of="$OUTPUT_FILE" bs=128k count=1 oflag=append conv=notrunc