ramips: add support for I-O DATA WN-AX1167GR2
I-O DATA WN-AX1167GR2 is a 2.4/5 GHz band 11ac router, based on MediaTek
MT7621A.
Specification:
- SoC : MediaTek MT7621A
- RAM : DDR3 128 MiB
- Flash : NAND 128 MiB
- WLAN : MediaTek MT7615D (2.4/5 GHz, 2T2R)
- Ethernet : 5x 10/100/1000 Mbps
- Switch : MediaTek MT7621A (MT7530)
- LEDs/Input : 2x/3x (2x buttons, 1x slide-switch)
- UART : through-hole on PCB
- J5: Vcc, TX, RX, NC, GND
- 57600 bps
Flash instruction using initramfs image:
1. Boot WN-AX1167GR2 normally
2. Access to "http://192.168.0.1/" and open firmware update page
("ファームウェア")
3. Select the OpenWrt initramfs image and click update ("更新")
button to perform firmware update
4. On the initramfs image, perform sysupgrade with squashfs-sysupgrade
image
5. Wait ~120 seconds to complete flashing
Notes:
- configuration in DeviceTree of DBDC (Dual-Band-Dual-Concurrent) mode
for MT7615D chip is not supported in mt76 driver
- last 0x80000 (512 KiB) in NAND flash is not used on stock firmware
- stock firmware requires "customized uImage header" by MSTC
(MitraStar Technology Corp.), but U-Boot doesn't
- uImage magic (0x0 - 0x3) : 0x434F4D42 (COMB)
- header crc32 (0x4 - 0x7) : with data length and data crc32
- image name (0x20 - 0x37) : model ID and firmware versions
- data length (0x38 - 0x3b): kernel + rootfs
- data crc32 (0x3c - 0x3f) : kernel + rootfs
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Reviewed-by: Sungbo Eo <mans0n@gorani.run>
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