The built-in watchdog is redundant when the device has an external
GPIO based hardware watchdog. And there is a conflict that both of
them will attempt to register the same device entry in sysfs. This
resulted in the built-in watchdog being unable to be activated.
This patch explicitly disables the built-in watchdog for devices
that use GPIO watchdog to fix the error:
[ 1.779206] ath79-wdt 18060008.wdt: unable to register misc device, err=-16
[ 1.786355] ath79-wdt: probe of 18060008.wdt failed with error -16
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18395
Signed-off-by: Robert Marko <robimarko@gmail.com>
Specifications:
Qualcomm/Atheros QCA9531
2x 10/100 Mbps Ethernet, with 48v PoE
2T2R 2.4 GHz, 802.11b/g/n
128MB RAM
16MB SPI Flash
4x LED (Always On Power, LAN, WAN, WLAN)
Flashing instructions:
The original firmware is based on OpenWrt, so flashing the sysupgrade image over the factory firmware is sufficient.
The bootloader has a built-in recovery web-ui. This is the method I used to flash OpenWrt. You can get to the recovery web-ui by holding down the reset button for a few seconds (~5s) while pluggin in the router. The LEDs should start blinking fast and the router should be available on 192.168.1.1 for the recovery.
Tested: Reset button, WAN LED, LAN LED, Power LED (always on, not much to test), WLAN LED, MAC addresses (same as factory firmware).
Signed-off-by: Felix Golatofski <git@xdfr.de>
