openwrt/target/linux
Coia Prant 05db6b3c5a ramips: add support for Hongdian H7920 v40
This is an industrial 4G router equipped with OpenWrt SNAPSHOT OEM
customized version

WARNING: The original firmware device tree is modified from evb
boards, and the device tree name is evb board. This submitted device
tree is a modified version, which deletes the non-this-device parts
and adds GPIO watchdog.

Specification:
- SoC: MediaTek MT7628NN
- Flash: 16 MB
- RAM: 128 MB
- Power: DC 5V-36V 1.5A
- Ethernet: 1x WAN [slot not install], 1x LAN (10/100 Mbps)
- Wireless radio: 802.11n 2.4g-only [antenna not install]
- LED:
  System/Power (RUN): GPIO/37 active-low
  Modem: GPIO/3 active-low
  RF (Modem Signal): GPIO/2 active-low
- Button:
  WPS / RESET: GPIO/11 active-low
- UART: 1x UART on PCB - 115200 8N1
- Serial / COM: 1X RS232/RS485 on board (GPIO/6 hi:RS485 lo:RS232)
- GPIO Watchdog: GPIO/0 mode=toggle timeout=1s
- Modem: 1x Built-in modem on board (Power: GPIO/4 active-high)
- PCIe: 1x miniPCIe for modem [slot not install]
- SIM Slots: 1x SIM Slots

Issue:
- Factory partition not store mac address on original firmware

Flash instruction:
Using SSH/Telnet:
1. Connect the board to the computer via RJ45 Ethernet
2. Login 192.168.8.1 with root password "superzxmn" (SSH Port 22, Telnet Port 5188)
3. Download openwrt firmware on the computer.
4. Use scp or sftp put firmware to board /tmp
5. Use command "mtd -r write openwrt-ramips-mt76x8-hongdian_h7920-v40-squashfs-sysupgrade.bin firmware"
   to flash

Original Firmware Dump / More details:
https://blog.gov.cooking/archives/research-hongdian-h7920-v40-and-flash.html

Signed-off-by: Coia Prant <coiaprant@gmail.com>
Tested-by: Coia Prant <coiaprant@gmail.com>
(cherry picked from commit ebee946227)
Link: https://github.com/openwrt/openwrt/pull/19716
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-08-21 22:43:43 +02:00
..
airoha airoha: backport upstream patch for Flow Offload support for AN7581 2025-08-20 08:47:47 +02:00
apm821xx apm821xx: NETGEAR WNDR4700: Fix compat version 2025-01-27 23:53:29 +01:00
archs38 kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
armsr armsr: change image names to 'combined-efi' 2025-01-16 21:07:53 +01:00
at91 kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
ath79 ath79: enable USB by default on hAP ac 2025-07-08 09:41:44 +02:00
bcm27xx kernel: bump 6.6 to 6.6.100 2025-07-27 19:40:40 +02:00
bcm47xx kernel: bump 6.6 to 6.6.78 2025-02-25 23:16:17 +01:00
bcm53xx kernel: bump 6.6 to 6.6.97 2025-07-17 20:49:02 +02:00
bcm4908 kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
bmips bmips: add missing NAND config symbol 2025-05-14 11:39:20 +02:00
d1 kernel: bump 6.6 to 6.6.93 2025-06-15 13:37:46 +02:00
gemini kernel: bump 6.6 to 6.6.95 2025-07-06 14:51:08 +02:00
generic generic: backport some flow offload helper patch 2025-08-21 17:06:50 +02:00
imx imx: venice: disable PCI AER 2025-06-25 21:02:35 +02:00
ipq40xx ipq40xx: config-6.6: add new option 2025-06-15 13:37:46 +02:00
ipq806x ipq806x: fix Extreme Networks AP3935 LAN/WAN ports 2025-06-22 13:40:28 +02:00
ixp4xx ixp4xx: Break out mv88e6060 DSA switch to package 2025-01-04 19:27:05 +01:00
kirkwood kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
lantiq kernel: bump 6.6 to 6.6.88 2025-05-07 20:53:16 +02:00
layerscape kernel: bump 6.6 to 6.6.88 2025-05-07 20:53:16 +02:00
loongarch64 generic: globally enable CONFIG_PCPU_DEV_REFCNT 2025-03-19 09:24:43 +01:00
malta kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
mediatek mediatek: Ruijie RG-X60 Pro: Fix LAN port status light 2025-07-29 23:18:45 +02:00
mpc85xx mpc85xx: tl-wdr4900: add back 5ghz LED 2025-08-13 09:58:03 +02:00
mvebu kernel: bump 6.6 to 6.6.95 2025-07-06 14:51:08 +02:00
mxs mxs: run kernel_oldconfig 2024-11-28 18:48:55 +00:00
octeon octeon: ubnt-usg: add board name to supported devices 2025-01-27 02:10:46 +01:00
omap kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
pistachio kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
qoriq kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
qualcommax kernel: bump 6.6 to 6.6.94 2025-06-29 15:19:56 +02:00
ramips ramips: add support for Hongdian H7920 v40 2025-08-21 22:43:43 +02:00
realtek kernel: bump 6.6 to 6.6.100 2025-07-27 19:40:40 +02:00
rockchip rockchip: backport PCIe MSI fixes for RK356x SoC 2025-07-06 17:03:31 +02:00
sifiveu kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
siflower kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
starfive kernel: bump 6.6 to 6.6.97 2025-07-17 20:49:02 +02:00
stm32 stm32: add missing config option 2025-05-28 13:22:00 +02:00
sunxi kernel: bump 6.6 to 6.6.61 2024-11-24 22:46:21 +01:00
tegra tegra: bring back workaround for spurious interrupts 2025-07-28 23:20:46 +02:00
uml uml: fix glibc-static check with GCC14 2024-06-22 22:06:06 +02:00
x86 kernel: bump 6.6 to 6.6.97 2025-07-17 20:49:02 +02:00
zynq kernel: filter out compiler opts from config 2024-11-28 18:47:54 +00:00
Makefile linux: fix missing default packages in profiles.json 2025-01-03 11:14:12 +01:00