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a4c30d9399
The rootfs is padded to the full block size by padjffs2 and a 4 byte magic
value ("deadc0de") is added to the end. On first boot, the JFFS2 is
replacing the "deadc0de" marker when the rootfs_data is initialized.
The static part of the rootfs is therefore $rootfs_size - 4 and not
$rootfs_size - 262144 - 4.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
93 lines
2.3 KiB
Bash
Executable File
93 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (C) 2011 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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usage() {
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echo "Usage: $0 <OM2P|OM5P|OM5PAC|MR600|MR900|MR1750|A60|A42|A62> <out file path> <kernel path> <rootfs path>"
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rm -f $CFG_OUT
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exit 1
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}
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[ "$#" -lt 4 ] && usage
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CE_TYPE=$1
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CFG_OUT=$2
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KERNEL_PATH=$3
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ROOTFS_PATH=$4
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case $CE_TYPE in
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OM2P)
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MAX_PART_SIZE=7168
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KERNEL_FLASH_ADDR=0x1c0000
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SIZE_FACTOR=1
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SIZE_FORMAT="%d"
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;;
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OM5P|OM5PAC|MR600|MR900|MR1750|A60)
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MAX_PART_SIZE=7808
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KERNEL_FLASH_ADDR=0xb0000
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SIZE_FACTOR=1
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SIZE_FORMAT="%d"
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;;
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A42)
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MAX_PART_SIZE=15616
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KERNEL_FLASH_ADDR=0x180000
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SIZE_FACTOR=1024
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SIZE_FORMAT="0x%08x"
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;;
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A62)
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MAX_PART_SIZE=15552
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KERNEL_FLASH_ADDR=0x1a0000
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SIZE_FACTOR=1024
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SIZE_FORMAT="0x%08x"
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;;
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*)
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echo "Error - unsupported ce type: $CE_TYPE"
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exit 1
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;;
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esac
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CHECK_BS=65536
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KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
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KERNEL_MD5=$(mkhash md5 $KERNEL_PATH)
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KERNEL_SHA256=$(mkhash sha256 $KERNEL_PATH)
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KERNEL_PART_SIZE_KB=$((KERNEL_SIZE / 1024))
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KERNEL_PART_SIZE=$(printf $SIZE_FORMAT $(($KERNEL_PART_SIZE_KB * $SIZE_FACTOR)))
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ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE_KB * 1024))); printf "0x%x" $addr)
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ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
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ROOTFS_SQUASHFS_SIZE=$((ROOTFS_SIZE-4))
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ROOTFS_CHECK_BLOCKS=$((ROOTFS_SQUASHFS_SIZE / CHECK_BS))
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ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
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ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
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ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
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ROOTFS_CHECK_SIZE=$(printf '0x%x' $ROOTFS_SQUASHFS_SIZE)
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ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
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ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))
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cat << EOF > $CFG_OUT
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[vmlinux]
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filename=kernel
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md5sum=$KERNEL_MD5
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filemd5sum=$KERNEL_MD5
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filesha256sum=$KERNEL_SHA256
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flashaddr=$KERNEL_FLASH_ADDR
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checksize=0x0
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cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
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cmd_fail=reset
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[rootfs]
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filename=rootfs
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md5sum=$ROOTFS_MD5
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filemd5sum=$ROOTFS_MD5_FULL
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filesha256sum=$ROOTFS_SHA256_FULL
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flashaddr=$ROOTFS_FLASH_ADDR
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checksize=$ROOTFS_CHECK_SIZE
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cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
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cmd_fail=reset
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EOF
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