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78a5d25dca
The OM2P(-HS)v4 got a variant which uses a slightly different flash. The standard versions used a flash with 256KB blocks which is no longer available. The replacement flash uses a flash with 64K blocks. The padding for the image rootfs is already for 64K and 256K and thus can be flashed on the device without any problems. Unfortunately, the bootloader will check $rootfs_size (rounded down to the nearest 64k block) minus 1x 64k. But it is now possible that the new JFFS2 rootfs_data starts even earlier and modifies the checked region. The check will then fail and the backup image (when available) will be booted. Just setting it to the same number of skipped blocks as other 64K models avoids this problem. Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
100 lines
2.6 KiB
Bash
Executable File
100 lines
2.6 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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FLASH_BS=262144
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MD5_SKIP_BLOCKS=4
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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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FLASH_BS=65536
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MD5_SKIP_BLOCKS=4
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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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FLASH_BS=65536
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MD5_SKIP_BLOCKS=4
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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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FLASH_BS=65536
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MD5_SKIP_BLOCKS=4
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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 $KERNEL_PATH)
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KERNEL_PART_SIZE_KB=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
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KERNEL_PART_SIZE=$(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 "$ROOTFS_PATH")
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ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
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ROOTFS_MD5=$(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_CHECK_BLOCKS * $CHECK_BS)))
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ROOTFS_PART_SIZE_KB=$(($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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