mediatek: filogic: add support for Xiaomi AX3000T
**SoC**: MediaTek MT7981B 2x A53
**Flash**: ESMT F50L1G41LB 128MB
**RAM**: NT52B128M16JR-FL 256MB
**Ethernet**: 4x 10/100/1000 Mbps
**Switch**: MediaTek MT7531AE
**WiFi**: MediaTek MT7976C
**Buttons**: Reset, Mesh
**Power**: DC 12V 1A
1. Get ssh access. Supported stock firmware **1.0.47**
```
curl -X POST "http://192.168.31.1/cgi-bin/luci/;stok=*******/api/misystem/arn_switch" -d "open=1&model=1&level=%0Anvram%20set%20ssh_en%3D1%0A"
curl -X POST "http://192.168.31.1/cgi-bin/luci/;stok=*******/api/misystem/arn_switch" -d "open=1&model=1&level=%0Anvram%20commit%0A"
curl -X POST "http://192.168.31.1/cgi-bin/luci/;stok=*******/api/misystem/arn_switch" -d "open=1&model=1&level=%0Ased%20-i%20's%2Fchannel%3D.*%2Fchannel%3D%22debug%22%2Fg'%20%2Fetc%2Finit.d%2Fdropbear%0A"
curl -X POST "http://192.168.31.1/cgi-bin/luci/;stok=*******/api/misystem/arn_switch" -d "open=1&model=1&level=%0A%2Fetc%2Finit.d%2Fdropbear%20start%0A"
curl -X POST "http://192.168.31.1/cgi-bin/luci/;stok=********/api/misystem/arn_switch" -d "open=1&model=1&level=%0Apasswd%20-d%20root%0A
```
2. Backup stock partitions
```
nanddump -f /tmp/BL2.bin /dev/mtd1
nanddump -f /tmp/Nvram.bin /dev/mtd2
nanddump -f /tmp/Bdata.bin /dev/mtd3
nanddump -f /tmp/Factory.bin /dev/mtd4
nanddump -f /tmp/FIP.bin /dev/mtd5
nanddump -f /tmp/ubi.bin /dev/mtd8
nanddump -f /tmp/KF.bin /dev/mtd12
```
Then transfer them to your computer in a safe place.
3. Get firmware information `cat /proc/cmdline`
4. Copy openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-initramfs-factory.ubi to **/tmp** and flash
If **firmware=0**
```
ubiformat /dev/mtd9 -y -f /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-initramfs-factory.ubi
nvram set boot_wait=on
nvram set uart_en=1
nvram set flag_boot_rootfs=1
nvram set flag_last_success=1
nvram set flag_boot_success=1
nvram set flag_try_sys1_failed=0
nvram set flag_try_sys2_failed=0
nvram commit
reboot
```
If **firmware=1**
```
ubiformat /dev/mtd8 -y -f /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-initramfs-factory.ubi
nvram set boot_wait=on
nvram set uart_en=1
nvram set flag_boot_rootfs=0
nvram set flag_last_success=0
nvram set flag_boot_success=1
nvram set flag_try_sys1_failed=0
nvram set flag_try_sys2_failed=0
nvram commit
reboot
```
Then reboot your router, it should boot to the OpenWrt initramfs system now.
5. Flash openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-squashfs-sysupgrade.bin
`sysupgrade -n /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-squashfs-sysupgrade.bin`
1. Flash openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb
`ubiformat /dev/mtd8 -y -f /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb`
`reboot`
2. Install kmod-mtd-rw
`opkg update && opkg install kmod-mtd-rw`
`insmod /lib/modules/$(uname -r)/mtd-rw.ko i_want_a_brick=1`
3. Format ubi and create new ubootenv volume
```
ubidetach -p /dev/mtd8; ubiformat /dev/mtd8 -y; ubiattach -p /dev/mtd8
ubimkvol /dev/ubi0 -n 0 -N ubootenv -s 128KiB
ubimkvol /dev/ubi0 -n 1 -N ubootenv2 -s 128KiB
```
4. *(Optional **-10Mb** free space) Add recovery boot feature.*
```
ubimkvol /dev/ubi0 -n 2 -N recovery -s 10MiB
ubiupdatevol /dev/ubi0_2 /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb
```
5. Flash Openwrt U-Boot
```
mtd write /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-preloader.bin BL2
mtd write /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-bl31-uboot.fip FIP
```
6. Flash openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-squashfs-sysupgrade.itb
`sysupgrade -n /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-squashfs-sysupgrade.itb`
1. Force flash openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb
`sysupgrade -F -n /tmp/openwrt-mediatek-filogic-xiaomi_mi-router-ax3000t-ubootmod-initramfs-recovery.itb`
2. Format ubi and Nvram
```
ubidetach -p /dev/mtd8; ubiformat /dev/mtd8 -y; ubiattach -p /dev/mtd8
mtd erase Nvram
```
3. Install kmod-mtd-rw
`opkg update && opkg install kmod-mtd-rw`
`insmod /lib/modules/$(uname -r)/mtd-rw.ko i_want_a_brick=1`
4. Flash stock images from backup
```
mtd write /tmp/BL2.bin BL2
mtd write /tmp/FIP.bin FIP
mtd write /tmp/ubi.bin ubi
```
Then reboot your router, waiting it finished rollback in minutes.
`ubiformat /dev/mtd7 -y -f /tmp/ubi.bin`
Then reboot your router, waiting it finished rollback in minutes.
Signed-off-by: Dim Fish <dimfish@gmail.com>
12 files changed: