Chen Minqiang 7d79346581 mediatek: filogic: add support for Tenda BE12 Pro
This patch adds support for Tenda BE12 Pro.

The stock bootloader requires a specific 16-byte header (Magic: "God1")
to correctly verify and boot the Linux kernel from flash. A new image
command `tenda-mkdualimageheader` is added to generate this header and
append the checksum/size information required for the device to boot
successfully.

Hardware Specification:
- SoC: MediaTek MT7987A (Quad-core ARM Cortex-A53 2.0 GHz)
- RAM: 512 MiB DDR4
- Flash: 128 MiB SPI-NAND
- WiFi: MediaTek MT7992E (WiFi 7)
  - 2.4GHz: b/g/n/ax/be (4x4 MIMO)
  - 5GHz: a/n/ac/ax/be (4x4 MIMO)
- Ethernet:
  - 3x 10/100/1000 Mbps LAN (Airoha AN8855AE Switch)
  - 1x 10/100/1000/2500 Mbps LAN (SoC internal PHY)
  - 1x 10/100/1000/2500 Mbps WAN (Airoha EN8811H PHY)
- Buttons: Reset, WPS
- LEDs: 2x (Blue: System/Run, Red: Alarm)
- UART: 115200 8n1 (VCC, RX, TX, GND)

Flash Layout:
- 0x000000 - 0x300000 : Bootloader
- 0x300000 - 0x380000 : u-boot-env
- 0x380000 - 0x780000 : Factory
- 0x780000 - 0xd80000 : kernel
- 0xd80000 - 0x6780000 : ubi (rootfs)
- 0x6780000 - 0x6b80000 : CFG
- 0x6b80000 - 0x6f80000 : MISC2

MAC Addresses (NVMEM):
- Base MAC located at Factory partition offset 0x4
- gmac2 (WAN) : Base - 2 (Label MAC)
- gmac0 (LAN) : Base - 1
- gmac1 (LAN) : Base - 3
- 2.4 GHz     : Base
- 5 GHz       : Base + 1

Installation:
1. Connect via UART and interrupt U-Boot by pressing 'Ctrl+C' during boot.
2. Set up a TFTP server on a computer (IP 192.168.1.2) containing
   'openwrt-initramfs.bin'.
3. Load the initramfs image:
   tftpboot openwrt-initramfs.bin
4. Boot the image:
   bootm
5. Once booted into OpenWrt initramfs, perform a sysupgrade with the
   sysupgrade image.

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/21461
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2026-01-20 00:58:22 +01:00
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