From dc5fe5f73f7cef3282fb6f529f4d91b8cf764706 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 16 Jun 2014 18:57:20 +0000 Subject: ramips: RT-N56U support fixes and factory image creation Signed-off-by: Mikko Hissa SVN-Revision: 41224 --- .../preinit/04_disable_wnce2001_flash_checksumming | 43 ----------------- .../base-files/lib/preinit/04_handle_checksumming | 56 ++++++++++++++++++++++ 2 files changed, 56 insertions(+), 43 deletions(-) delete mode 100644 target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming create mode 100644 target/linux/ramips/base-files/lib/preinit/04_handle_checksumming (limited to 'target/linux/ramips/base-files') diff --git a/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming b/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming deleted file mode 100644 index 67a1746..0000000 --- a/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming +++ /dev/null @@ -1,43 +0,0 @@ -#!/bin/sh - -# Netgear WNCE2001 has does a checksum check on boot and goes into recovery -# tftp mode when the check fails. Initializing the JFFS2 partition triggers -# this, so we make sure to zero checksum and size to be checksummed before -# that happens, so this needs to run very early during boot. - -do_wnce2001_checksumming_disable() { - . /lib/ramips.sh - - local board=$(ramips_board_name) - - case "$board" in - wnce2001) - echo "Board is WNCE2001, updating checksum partition..." - local zeroes=/dev/zero - local tmpfile=/tmp/wnce2001_checksum - local partname=checksum - local mtd=$(find_mtd_part $partname) - dd if=$mtd of=$tmpfile bs=80 count=1 2>/dev/null - signature=$(dd if=$tmpfile bs=1 skip=24 count=20 2>/dev/null) - checksum=$(dd if=$tmpfile bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"') - if [ "$signature" != "RT3052-AP-WNCE2001-3" ]; then - echo "Signature of checksum partition is wrong, bailing." - return 0 - fi - if [ "$checksum" != "00000000" ]; then - echo "Checksum is set, zeroing." - # zero out checksum - dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=0 count=4 2>/dev/null - # zero out bytecount to be checksummed - dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=60 count=4 2>/dev/null - mtd write $tmpfile $partname - else - echo "Checksum is already zero, nothing to do." - fi - ;; - esac - - return 0 -} - -boot_hook_add preinit_main do_wnce2001_checksumming_disable diff --git a/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming b/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming new file mode 100644 index 0000000..fd06d20 --- /dev/null +++ b/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming @@ -0,0 +1,56 @@ +#!/bin/sh + +# Netgear WNCE2001 has does a checksum check on boot and goes into recovery +# tftp mode when the check fails. Initializing the JFFS2 partition triggers +# this, so we make sure to zero checksum and size to be checksummed before +# that happens, so this needs to run very early during boot. + +do_checksumming_disable() { + . /lib/ramips.sh + + local board=$(ramips_board_name) + + case "$board" in + wnce2001) + echo "Board is WNCE2001, updating checksum partition..." + local zeroes=/dev/zero + local tmpfile=/tmp/wnce2001_checksum + local partname=checksum + local mtd=$(find_mtd_part $partname) + dd if=$mtd of=$tmpfile bs=80 count=1 2>/dev/null + signature=$(dd if=$tmpfile bs=1 skip=24 count=20 2>/dev/null) + checksum=$(dd if=$tmpfile bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"') + if [ "$signature" != "RT3052-AP-WNCE2001-3" ]; then + echo "Signature of checksum partition is wrong, bailing." + return 0 + fi + if [ "$checksum" != "00000000" ]; then + echo "Checksum is set, zeroing." + # zero out checksum + dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=0 count=4 2>/dev/null + # zero out bytecount to be checksummed + dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=60 count=4 2>/dev/null + mtd write $tmpfile $partname + else + echo "Checksum is already zero, nothing to do." + fi + ;; + rt-n56u) + echo "Board is ASUS RT-N56U, replacing uImage header..." + local firmware_mtd=$(find_mtd_part firmware) + local rootfs_mtd=$(find_mtd_part rootfs) + local rootfs_data_mtd=$(find_mtd_part rootfs_data) + local rootfs_len=$(grep \"rootfs\" /proc/mtd | awk -F' ' '{print "0x"$2}') + local rootfs_data_len=$(grep \"rootfs_data\" /proc/mtd | awk -F' ' '{print "0x"$2}') + local offset=$(echo "$rootfs_len $rootfs_data_len 0x40" | awk -F' ' '{printf "%i",$1-$2-$3}') + local signature=$(dd if=$rootfs_mtd skip=$offset bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"') + if [ "$signature" == "27051956" ]; then + dd conv=notrunc if=$rootfs_mtd skip=$offset of=$firmware_mtd bs=1 count=64 2>/dev/null + fi + ;; + esac + + return 0 +} + +boot_hook_add preinit_main do_checksumming_disable -- cgit v1.1