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 <enrique.rodriguez@galgus.net>
Co-Authored-By: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Leon M. Busch-George <leon@georgemail.eu>

diff --git a/target/linux/mediatek/dts/mt7981b-yuncore-ax835.dts b/target/linux/mediatek/dts/mt7981b-yuncore-ax835.dts
new file mode 100644 (file)
index 0000000..b3ca5bf
--- /dev/null
+++ b/target/linux/mediatek/dts/mt7981b-yuncore-ax835.dts
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+/dts-v1/;
+
+#include "mt7981.dtsi"
+
+/ {
+       compatible = "yuncore,ax835", "mediatek,mt7981";
+       model = "YunCore AX835";
+
+       aliases {
+               ethernet0 = &gmac0;
+               led-boot = &led_system;
+               led-failsafe = &led_system;
+               led-running = &led_system;
+               led-upgrade = &led_system;
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               reset {
+                       label = "reset";
+                       linux,code = <KEY_RESTART>;
+                       gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       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>;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led_system: led_system {
+                       label = "red:system";
+                       gpios = <&pio 4 GPIO_ACTIVE_LOW>;
+               };
+
+               led_wifi24 {
+                       label = "green:wifi2";
+                       gpios = <&pio 34 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy0tpt";
+               };
+
+               led_wifi5 {
+                       label = "blue:wifi5";
+                       gpios = <&pio 35 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy1tpt";
+               };
+
+               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>;
+               };
+
+               // there's another "syswatchdog" on gpio2
+       };
+};
+
+&eth {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mdio_pins>;
+
+       status = "okay";
+
+       gmac0: mac@0 {
+               compatible = "mediatek,eth-mac";
+               reg = <0>;
+               phy-mode = "2500base-x";
+
+               fixed-link {
+                       speed = <2500>;
+                       full-duplex;
+                       pause;
+               };
+       };
+};
+
+&mdio_bus {
+       switch: switch@1f {
+               compatible = "mediatek,mt7531";
+               reg = <31>;
+               reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+       };
+};
+
+&pio {
+       spi0_flash_pins: spi0-pins {
+               mux {
+                       function = "spi";
+                       groups = "spi0", "spi0_wp_hold";
+               };
+       };
+
+       spi2_flash_pins: spi2-pins {
+               mux {
+                       function = "spi";
+                       groups = "spi2", "spi2_wp_hold";
+               };
+
+               conf-pu {
+                       pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
+                       drive-strength = <8>;
+                       bias-pull-up = <103>;
+               };
+
+               conf-pd {
+                       pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
+                       drive-strength = <8>;
+                       bias-pull-down = <103>;
+               };
+       };
+};
+
+&spi0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi0_flash_pins>;
+       status = "disabled";
+};
+
+&spi2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi2_flash_pins>;
+       status = "okay";
+
+       flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+
+               spi-max-frequency = <52000000>;
+               spi-tx-buswidth = <4>;
+               spi-rx-buswidth = <4>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@00000 {
+                               label = "BL2";
+                               reg = <0x00000 0x40000>;
+                               read-only;
+                       };
+
+                       partition@40000 {
+                               label = "u-boot-env";
+                               reg = <0x40000 0x10000>;
+                               read-only;
+                       };
+
+                       factory: partition@50000 {
+                               label = "Factory";
+                               reg = <0x50000 0x10000>;
+                               read-only;
+
+                               compatible = "nvmem-cells";
+                               #address-cells = <1>;
+                               #size-cells = <1>;
+
+                               eeprom_factory: eeprom@0 {
+                                       reg = <0x0 0x1000>;
+                               };
+
+                               macaddr_factory_4: macaddr@4 {
+                                       reg = <0x4 0x6>;
+                               };
+
+                               macaddr_factory_24: macaddr@24 {
+                                       reg = <0x24 0x6>;
+                               };
+
+                               macaddr_factory_2a: macaddr@2a {
+                                       reg = <0x2a 0x6>;
+                               };
+                       };
+
+                       partition@100000 {
+                               label = "FIP";
+                               reg = <0x100000 0x80000>;
+                               read-only;
+                       };
+
+                       partition@180000 {
+                               compatible = "denx,fit";
+                               label = "firmware";
+                               reg = <0x180000 0xe00000>;
+                       };
+               };
+       };
+};
+
+&switch {
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               lan: port@3 {
+                       reg = <3>;
+                       label = "lan";
+
+                       nvmem-cell-names = "mac-address";
+                       nvmem-cells = <&macaddr_factory_2a 0>;
+               };
+
+               port@4 {
+                       reg = <4>;
+                       label = "wan";
+
+                       nvmem-cell-names = "mac-address";
+                       nvmem-cells = <&macaddr_factory_2a 0>;
+               };
+
+               port@6 {
+                       reg = <6>;
+                       label = "cpu";
+                       ethernet = <&gmac0>;
+                       phy-mode = "2500base-x";
+
+                       fixed-link {
+                               speed = <2500>;
+                               full-duplex;
+                               pause;
+                       };
+               };
+       };
+};
+
+&uart0 {
+       status = "okay";
+};
+
+&watchdog {
+       status = "okay";
+};
+
+&wifi {
+       status = "okay";
+       nvmem-cells = <&eeprom_factory 0>;
+       nvmem-cell-names = "eeprom";
+};

diff --git a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
index dd3464b72cc31fb734074be4277d2527ea031e7f..2a6a97919df4ee6bd6b851f0b521b3a302496705 100644 (file)
--- a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
+++ b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
@@ -66,7 +66,8 @@ mediatek_setup_interfaces()
                ucidef_set_interface_lan "eth0"
                ;;
        smartrg,sdg-8622|\
-       smartrg,sdg-8632)
+       smartrg,sdg-8632|\
+       yuncore,ax835)
                ucidef_set_interfaces_lan_wan lan wan
                ;;
        tplink,tl-xdr6086)
@@ -170,6 +171,9 @@ mediatek_setup_macs()
                wan_mac=$(mtd_get_mac_ascii Bdata ethaddr_wan)
                label_mac=$wan_mac
                ;;
+       yuncore,ax835)
+               label_mac=$(mtd_get_mac_binary "Factory" 0x4)
+               ;;
        esac
 
        [ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" $lan_mac

diff --git a/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
index 65ec5d8271e3cf05b3f8b0a351d701c54c1df98a..517f4520e143c08d0bbcc73f8bb8e12a1c57d9ff 100755 (executable)
--- a/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh
@@ -111,7 +111,8 @@ platform_do_upgrade() {
                        ;;
                esac
                ;;
-       cudy,wr3000-v1)
+       cudy,wr3000-v1|\
+       yuncore,ax835)
                default_do_upgrade "$1"
                ;;
        glinet,gl-mt2500|\

diff --git a/target/linux/mediatek/image/filogic.mk b/target/linux/mediatek/image/filogic.mk
index c079fae0b00428ff3166f477fd2d0865432ad863..d0c9907635fb3d8fdbd6359cba7f654d60de47a3 100644 (file)
--- a/target/linux/mediatek/image/filogic.mk
+++ b/target/linux/mediatek/image/filogic.mk
@@ -880,6 +880,25 @@ endif
 endef
 TARGET_DEVICES += xiaomi_redmi-router-ax6000-ubootmod
 
+define Device/yuncore_ax835
+  DEVICE_VENDOR := YunCore
+  DEVICE_MODEL := AX835
+  DEVICE_DTS := mt7981b-yuncore-ax835
+  DEVICE_DTS_DIR := ../dts
+  DEVICE_DTS_LOADADDR := 0x47000000
+  IMAGES := sysupgrade.bin
+  IMAGE_SIZE := 14336k
+  SUPPORTED_DEVICES += mediatek,mt7981-spim-nor-rfb
+  KERNEL := kernel-bin | lzma | \
+       fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
+  KERNEL_INITRAMFS := kernel-bin | lzma | \
+       fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd | pad-to 64k
+  IMAGE/sysupgrade.bin := append-kernel | pad-to 128k | append-rootfs | pad-rootfs | check-size | append-metadata
+  DEVICE_PACKAGES := kmod-mt7981-firmware mt7981-wo-firmware
+endef
+TARGET_DEVICES += yuncore_ax835
+
+
 define Device/zbtlink_zbt-z8102ax
   DEVICE_VENDOR := Zbtlink
   DEVICE_MODEL := ZBT-Z8102AX