From b3770eaca39f223faecfcc0d169a1bb2f6f9464a Mon Sep 17 00:00:00 2001 From: Jeff Kletsky Date: Wed, 10 Apr 2019 08:28:01 -0700 Subject: mtd: base-files: Unify dual-firmware devices (Linksys) Consistently handle boot-count reset and upgrade across ipq40xx, ipq806x, kirkwood, mvebu Dual-firmware devices often utilize a specific MTD partition to record the number of times the boot loader has initiated boot. Most of these devices are NAND, typically with a 2k erase size. When this code was ported to the ipq40xx platform, the device in hand used NOR for this partition, with a 16-byte "record" size. As the implementation of `mtd resetbc` is by-platform, the hard-coded nature of this change prevented proper operation of a NAND-based device. * Unified the "NOR" variant with the rest of the Linksys variants * Added logging to indicate success and failure * Provided a meaningful return value for scripting * "Protected" the use of `mtd resetbc` in start-up scripts so that failure does not end the boot sequence * Moved Linksys-specific actions into common `/etc/init.d/bootcount` For upgrade, these devices need to determine which partition to flash, as well as set certain U-Boot envirnment variables to change the next boot to the newly flashed version. * Moved upgrade-related environment changes out of bootcount * Combined multiple flashes of environment into single one * Current-partition detection now handles absence of `boot_part` Runtime-tested: Linksys EA8300 Signed-off-by: Jeff Kletsky Signed-off-by: Christian Lamparter [checkpatch.pl fixes, traded split strings for 80+ chars per line] --- .../linux/ipq806x/base-files/etc/init.d/bootcount | 13 +++++ .../ipq806x/base-files/etc/init.d/linksys_recovery | 19 -------- .../ipq806x/base-files/lib/upgrade/linksys.sh | 57 ++++++++++++++-------- 3 files changed, 51 insertions(+), 38 deletions(-) create mode 100755 target/linux/ipq806x/base-files/etc/init.d/bootcount delete mode 100755 target/linux/ipq806x/base-files/etc/init.d/linksys_recovery (limited to 'target/linux/ipq806x/base-files') diff --git a/target/linux/ipq806x/base-files/etc/init.d/bootcount b/target/linux/ipq806x/base-files/etc/init.d/bootcount new file mode 100755 index 0000000000..6a5a6d52ad --- /dev/null +++ b/target/linux/ipq806x/base-files/etc/init.d/bootcount @@ -0,0 +1,13 @@ +#!/bin/sh /etc/rc.common + +START=99 + +start() { + . /lib/functions.sh + + case $(board_name) in + linksys,ea8500) + mtd resetbc s_env || true + ;; + esac +} diff --git a/target/linux/ipq806x/base-files/etc/init.d/linksys_recovery b/target/linux/ipq806x/base-files/etc/init.d/linksys_recovery deleted file mode 100755 index 6b4b38ec7b..0000000000 --- a/target/linux/ipq806x/base-files/etc/init.d/linksys_recovery +++ /dev/null @@ -1,19 +0,0 @@ -#!/bin/sh /etc/rc.common -# Copyright (C) 2015 OpenWrt.org - -START=97 -boot() { -. /lib/functions.sh - -case $(board_name) in - linksys,ea8500) - # make sure auto_recovery in uboot is always on - AUTO_RECOVERY_ENA="`fw_printenv -n auto_recovery`" - if [ "$AUTO_RECOVERY_ENA" != "yes" ] ; then - fw_setenv auto_recovery yes - fi - # reset the boot counter - mtd resetbc s_env - ;; -esac -} diff --git a/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh b/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh index 0234ce0a51..2aa6e0f08c 100644 --- a/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh +++ b/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh @@ -3,28 +3,47 @@ # linksys_get_target_firmware() { - cur_boot_part=`/usr/sbin/fw_printenv -n boot_part` - target_firmware="" - if [ "$cur_boot_part" = "1" ] - then - # current primary boot - update alt boot - target_firmware="kernel2" - fw_setenv boot_part 2 - #In EA8500 bootcmd is always "bootipq", so don't change - #fw_setenv bootcmd "run altnandboot" - elif [ "$cur_boot_part" = "2" ] - then - # current alt boot - update primary boot - target_firmware="kernel1" - fw_setenv boot_part 1 - #In EA8500 bootcmd is always "bootipq", so don't change - #fw_setenv bootcmd "run nandboot" + + local cur_boot_part mtd_ubi0 + + cur_boot_part=$(/usr/sbin/fw_printenv -n boot_part) + if [ -z "${cur_boot_part}" ] ; then + mtd_ubi0=$(cat /sys/devices/virtual/ubi/ubi0/mtd_num) + case $(egrep ^mtd${mtd_ubi0}: /proc/mtd | cut -d '"' -f 2) in + kernel1|rootfs1) + cur_boot_part=1 + ;; + kernel2|rootfs2) + cur_boot_part=2 + ;; + esac + >&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \ + "${cur_boot_part}" "${mtd_ubi0}" fi - # re-enable recovery so we get back if the new firmware is broken - fw_setenv auto_recovery yes + cur_boot_part=`/usr/sbin/fw_printenv -n boot_part` - echo "$target_firmware" + case $cur_boot_part in + 1) + fw_setenv -s - <<-EOF + boot_part 2 + auto_recovery yes + EOF + printf "kernel2" + return + ;; + 2) + fw_setenv -s - <<-EOF + boot_part 1 + auto_recovery yes + EOF + printf "kernel1" + return + ;; + *) + return + ;; + esac } linksys_get_root_magic() { -- cgit v1.2.3