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mediatek: add support for YunCore AX835
Hardware specification: SoC: MediaTek MT7981B 2x A53 Flash: 16MB NOR RAM: 256MB Ethernet: 2x 10/100/1000 Mbps Switch: MediaTek MT7531AE WiFi: MediaTek MT7976C Button: Reset Power: DC 12V 1A, PoE 802.3af 48V Flash instructions: Option #1 - SSH I was able to SSH into the stock firmware of my device. 1. Attach the router to the network 2. Use scp (-O) to copy the sysupgrade image 3. Connect using SSH and run `sysupgrade -n` Option #2 - U-Boot One way to use the bootloader for flashing is using TFTP: 1. Connect to the router using an ethernet cable 2 Spin up a TFTP server serving the sysupgrade file 3. Open the case and attach a UART 4. Attach power to the router and interrupt the countdown by pressing any key 5. Select option #2 (Upgrade firmware) 6. Enter IP address information and image name 7. Wait patiently Co-Authored-By: Enrique Rodríguez Valencia <[email protected]> Co-Authored-By: Hauke Mehrtens <[email protected]> Signed-off-by: Leon M. Busch-George <[email protected]> (cherry picked from commit b4086f4)
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| @@ -0,0 +1,259 @@ | ||
| // SPDX-License-Identifier: (GPL-2.0 OR MIT) | ||
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| /dts-v1/; | ||
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| #include "mt7981.dtsi" | ||
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| / { | ||
| compatible = "yuncore,ax835", "mediatek,mt7981"; | ||
| model = "YunCore AX835"; | ||
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| aliases { | ||
| ethernet0 = &gmac0; | ||
| led-boot = &led_system; | ||
| led-failsafe = &led_system; | ||
| led-running = &led_system; | ||
| led-upgrade = &led_system; | ||
| serial0 = &uart0; | ||
| }; | ||
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| chosen { | ||
| stdout-path = "serial0:115200n8"; | ||
| }; | ||
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| gpio-keys { | ||
| compatible = "gpio-keys"; | ||
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| reset { | ||
| label = "reset"; | ||
| linux,code = <KEY_RESTART>; | ||
| gpios = <&pio 1 GPIO_ACTIVE_LOW>; | ||
| }; | ||
| }; | ||
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| reg_led_vbus { | ||
| compatible = "regulator-fixed"; | ||
| regulator-name = "led_vbus"; | ||
| regulator-min-microvolt = <3300000>; | ||
| regulator-max-microvolt = <3300000>; | ||
| regulator-always-on; | ||
| gpio = <&pio 5 GPIO_ACTIVE_HIGH>; | ||
| }; | ||
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| leds { | ||
| compatible = "gpio-leds"; | ||
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| led_system: led_system { | ||
| label = "red:system"; | ||
| gpios = <&pio 4 GPIO_ACTIVE_LOW>; | ||
| }; | ||
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| led_wifi24 { | ||
| label = "green:wifi2"; | ||
| gpios = <&pio 34 GPIO_ACTIVE_LOW>; | ||
| linux,default-trigger = "phy0tpt"; | ||
| }; | ||
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| led_wifi5 { | ||
| label = "blue:wifi5"; | ||
| gpios = <&pio 35 GPIO_ACTIVE_LOW>; | ||
| linux,default-trigger = "phy1tpt"; | ||
| }; | ||
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| led_hwwatchdog { | ||
| // a gpio-wdt watchdog couldn't be made to work. | ||
| // the device rebooted after 5 minutes. | ||
| label = "hwwatchdog"; | ||
| gpios = <&pio 7 GPIO_ACTIVE_LOW>; | ||
| linux,default-trigger = "timer"; | ||
| led-pattern = <1000>, <1000>; | ||
| }; | ||
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| // there's another "syswatchdog" on gpio2 | ||
| }; | ||
| }; | ||
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| ð { | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&mdio_pins>; | ||
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| status = "okay"; | ||
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| gmac0: mac@0 { | ||
| compatible = "mediatek,eth-mac"; | ||
| reg = <0>; | ||
| phy-mode = "2500base-x"; | ||
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| fixed-link { | ||
| speed = <2500>; | ||
| full-duplex; | ||
| pause; | ||
| }; | ||
| }; | ||
| }; | ||
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| &mdio_bus { | ||
| switch: switch@1f { | ||
| compatible = "mediatek,mt7531"; | ||
| reg = <31>; | ||
| reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>; | ||
| }; | ||
| }; | ||
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| &pio { | ||
| spi0_flash_pins: spi0-pins { | ||
| mux { | ||
| function = "spi"; | ||
| groups = "spi0", "spi0_wp_hold"; | ||
| }; | ||
| }; | ||
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| spi2_flash_pins: spi2-pins { | ||
| mux { | ||
| function = "spi"; | ||
| groups = "spi2", "spi2_wp_hold"; | ||
| }; | ||
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| conf-pu { | ||
| pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP"; | ||
| drive-strength = <8>; | ||
| bias-pull-up = <103>; | ||
| }; | ||
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| conf-pd { | ||
| pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO"; | ||
| drive-strength = <8>; | ||
| bias-pull-down = <103>; | ||
| }; | ||
| }; | ||
| }; | ||
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| &spi0 { | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&spi0_flash_pins>; | ||
| status = "disabled"; | ||
| }; | ||
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| &spi2 { | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&spi2_flash_pins>; | ||
| status = "okay"; | ||
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| flash@0 { | ||
| #address-cells = <1>; | ||
| #size-cells = <1>; | ||
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| compatible = "jedec,spi-nor"; | ||
| reg = <0>; | ||
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| spi-max-frequency = <52000000>; | ||
| spi-tx-buswidth = <4>; | ||
| spi-rx-buswidth = <4>; | ||
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| partitions { | ||
| compatible = "fixed-partitions"; | ||
| #address-cells = <1>; | ||
| #size-cells = <1>; | ||
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| partition@00000 { | ||
| label = "BL2"; | ||
| reg = <0x00000 0x40000>; | ||
| read-only; | ||
| }; | ||
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| partition@40000 { | ||
| label = "u-boot-env"; | ||
| reg = <0x40000 0x10000>; | ||
| read-only; | ||
| }; | ||
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| factory: partition@50000 { | ||
| label = "Factory"; | ||
| reg = <0x50000 0x10000>; | ||
| read-only; | ||
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| compatible = "nvmem-cells"; | ||
| #address-cells = <1>; | ||
| #size-cells = <1>; | ||
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| eeprom_factory: eeprom@0 { | ||
| reg = <0x0 0x1000>; | ||
| }; | ||
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| macaddr_factory_4: macaddr@4 { | ||
| reg = <0x4 0x6>; | ||
| }; | ||
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| macaddr_factory_24: macaddr@24 { | ||
| reg = <0x24 0x6>; | ||
| }; | ||
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| macaddr_factory_2a: macaddr@2a { | ||
| reg = <0x2a 0x6>; | ||
| }; | ||
| }; | ||
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| partition@100000 { | ||
| label = "FIP"; | ||
| reg = <0x100000 0x80000>; | ||
| read-only; | ||
| }; | ||
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| partition@180000 { | ||
| compatible = "denx,fit"; | ||
| label = "firmware"; | ||
| reg = <0x180000 0xe00000>; | ||
| }; | ||
| }; | ||
| }; | ||
| }; | ||
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| &switch { | ||
| ports { | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
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| lan: port@3 { | ||
| reg = <3>; | ||
| label = "lan"; | ||
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| nvmem-cell-names = "mac-address"; | ||
| nvmem-cells = <&macaddr_factory_2a 0>; | ||
| }; | ||
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| port@4 { | ||
| reg = <4>; | ||
| label = "wan"; | ||
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| nvmem-cell-names = "mac-address"; | ||
| nvmem-cells = <&macaddr_factory_2a 0>; | ||
| }; | ||
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| port@6 { | ||
| reg = <6>; | ||
| label = "cpu"; | ||
| ethernet = <&gmac0>; | ||
| phy-mode = "2500base-x"; | ||
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| fixed-link { | ||
| speed = <2500>; | ||
| full-duplex; | ||
| pause; | ||
| }; | ||
| }; | ||
| }; | ||
| }; | ||
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| &uart0 { | ||
| status = "okay"; | ||
| }; | ||
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| &watchdog { | ||
| status = "okay"; | ||
| }; | ||
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| &wifi { | ||
| status = "okay"; | ||
| nvmem-cells = <&eeprom_factory 0>; | ||
| nvmem-cell-names = "eeprom"; | ||
| }; |
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