[openwrt/openwrt] mediatek: Xiaomi AX3000t: fix soft brick for the rd23 model

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-24.10:
https://git.openwrt.org/939550bfbfc8423873348f890d2507eb6732ffec

commit 939550bfbfc8423873348f890d2507eb6732ffec
Author: Mikhail Zhilkin <csharper2005 at gmail.com>
AuthorDate: Sat Jan 11 14:55:17 2025 +0000

    mediatek: Xiaomi AX3000t: fix soft brick for the rd23 model
    
    This commit fixes Xiaomi AX3000t soft bricks. Issue affects at least rd23
    model (Global version) users:
    Link: https://forum.openwrt.org/t/openwrt-support-for-xiaomi-ax3000t/180490/452
    
    I also found that these nvram settings are wrong for the rd23 model and
    U-Boot erase them:
    '''
    flag_try_sys1_failed 8
    flag_try_sys2_failed 8
    '''
    As a result, platform.sh -> xiaomi_initial_setup() function sometimes ends
    early without applying settings for the rd23 model.
    
    RD03 model strategy:
    1. Don't touch values those were set up by platform.sh ->
    xiaomi_initial_setup() function
    
    RD23 model strategy:
    1. Apply correct nvram settings at every boot
    2. Use bulk fw_setenv call
    
    I didn't find opened issue for AX3000t. Similar AX3200 issue:
    Link: https://github.com/openwrt/openwrt/issues/16347
    So, other Xiaomi devices (e.g. Xiaomi WR30U) may also require fix.
    
    Fixes: 7dbcc1215a56cc1da68c81bf92d7efa174c5e051 ("mediatek: filogic: add support for Xiaomi AX3000T")
    Signed-off-by: Mikhail Zhilkin <csharper2005 at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/17580
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
    (cherry picked from commit 42a253c7e8992e2274628b1770a0263ac433d0bc)
---
 .../mediatek/filogic/base-files/etc/init.d/bootcount   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/target/linux/mediatek/filogic/base-files/etc/init.d/bootcount b/target/linux/mediatek/filogic/base-files/etc/init.d/bootcount
index c52d004c63..a0e7d40862 100755
--- a/target/linux/mediatek/filogic/base-files/etc/init.d/bootcount
+++ b/target/linux/mediatek/filogic/base-files/etc/init.d/bootcount
@@ -5,6 +5,24 @@ START=99
 
 boot() {
 	case $(board_name) in
+	xiaomi,mi-router-ax3000t)
+		. /lib/upgrade/common.sh
+		[ "$(rootfs_type)" = "tmpfs" ] && \
+			logger "bootcount: initramfs mode detected, exit" && \
+			return 0
+		[ "$(fw_printenv -n flag_try_sys2_failed 2>&1)" = "8" ] && \
+			logger "bootcount: rd03 model detected, exit" && \
+			return 0
+		fw_setenv -s - <<-EOF
+			flag_boot_rootfs 0
+			flag_boot_success 1
+			flag_last_success 0
+			flag_ota_reboot 0
+			flag_try_sys1_failed 0
+			flag_try_sys2_failed 0
+		EOF
+		logger "bootcount: rd23 model detected, nvram was updated"
+		;;
 	zyxel,ex5700-telenor)
 		fw_setenv uboot_bootcount 0
 		;;