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authorJeff Kletsky <git-commits@allycomm.com>2019-04-10 08:28:01 -0700
committerChristian Lamparter <chunkeey@gmail.com>2019-05-18 13:43:51 +0200
commitb3770eaca39f223faecfcc0d169a1bb2f6f9464a (patch)
tree4697e1277e06775e1fdf0e36aadbe1f636b22806 /target/linux/ipq806x/base-files/lib/upgrade
parent4bdc873a5fda60557478a4294983cf71e7eccea6 (diff)
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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 <git-commits@allycomm.com> Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [checkpatch.pl fixes, traded split strings for 80+ chars per line]
Diffstat (limited to 'target/linux/ipq806x/base-files/lib/upgrade')
-rw-r--r--target/linux/ipq806x/base-files/lib/upgrade/linksys.sh57
1 files changed, 38 insertions, 19 deletions
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() {