ramips: add support for Cudy WR1300

Specifications:
 - SoC: MediaTek MT7621AT
 - RAM: 128 MB (DDR3)
 - Flash: 16 MB (SPI NOR)
 - WiFi: MediaTek MT7603E, MediaTek MT7612E
 - Switch: 1 WAN, 4 LAN (Gigabit)
 - Ports: 1 USB 3.0
 - Buttons: Reset, WPS
 - LEDs: Power, System, Wan, Lan 1-4, WiFi 2.4G, WiFi 5G, WPS, USB
 - Power: DC 12V 1A tip positive

UART Serial:
  115200 baud
  Located on unpopulated 4 pin header near J4:

  J4
  [o] Rx
  [o] Tx
  [o] GND
  [ ] Vcc - Do not connect

Installation:

Download and flash the manufacturer's built OpenWRT image available at
http://www.cudytech.com/openwrt_software_download
Install the new OpenWRT image via luci (System -> Backup/Flash firmware)
Be sure to NOT keep settings. The force upgrade may need to be checked
due to differences in router naming conventions.

Recovery:
 - Loads only signed manufacture firmware due to bootloader RSA verification
 - serve tftp-recovery image as /recovery.bin on 192.168.1.88/24
 - connect to any lan ethernet port
 - power on the device while holding the reset button
 - wait at least 8 seconds before releasing reset button for image to
   download
 - See http://www.cudytech.com/newsinfo/547425.html

MAC addresses as verified by OEM firmware:

use   address   source
LAN   *:f0      label
WAN   *:f1      label + 1
2g    *:f0      label
5g    *:f2      label + 2

The label MAC address is found in bdinfo 0xde00.

Signed-off-by: Andrew Pikler <andrew.pikler@gmail.com>

diff --git a/target/linux/ramips/dts/mt7621_cudy_wr1300.dts b/target/linux/ramips/dts/mt7621_cudy_wr1300.dts
new file mode 100644 (file)
index 0000000..a66ce94
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_cudy_wr1300.dts
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+       compatible = "cudy,wr1300", "mediatek,mt7621-soc";
+       model = "Cudy WR1300";
+
+       aliases {
+               led-boot = &led_sys;
+               led-failsafe = &led_sys;
+               led-running = &led_sys;
+               led-upgrade = &led_sys;
+               label-mac-device = &gmac0;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,115200";
+       };
+
+       keys {
+               compatible = "gpio-keys";
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+               };
+
+               wps {
+                       label = "wps";
+                       gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_WPS_BUTTON>;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led_sys: sys {
+                       label = "green:sys";
+                       gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+               };
+
+               usb {
+                       label = "green:usb";
+                       gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+                       trigger-sources = <&xhci_ehci_port1>, <&ehci_port2>;
+                       linux,default-trigger = "usbport";
+               };
+
+               wps {
+                       label = "green:wps";
+                       gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+               };
+       };
+};
+
+&spi0 {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <80000000>;
+               m25p,fast-read;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "u-boot";
+                               reg = <0x0 0x30000>;
+                               read-only;
+                       };
+
+                       partition@30000 {
+                               label = "u-boot-env";
+                               reg = <0x30000 0x10000>;
+                               read-only;
+                       };
+
+                       factory: partition@40000 {
+                               label = "factory";
+                               reg = <0x40000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@50000 {
+                               compatible = "denx,uimage";
+                               label = "firmware";
+                               reg = <0x50000 0xf80000>;
+                       };
+
+                       partition@fd0000 {
+                               label = "debug";
+                               reg = <0xfd0000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@fe0000 {
+                               label = "backup";
+                               reg = <0xfe0000 0x10000>;
+                               read-only;
+                       };
+
+                       bdinfo: partition@ff0000 {
+                               label = "bdinfo";
+                               reg = <0xff0000 0x10000>;
+                               read-only;
+                       };
+               };
+       };
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie0 {
+       wifi@0,0 {
+               compatible = "pci14c3,7603";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x0000>;
+               mtd-mac-address = <&bdinfo 0xde00>;
+               ieee80211-freq-limit = <2400000 2500000>;
+
+               led {
+                       led-active-low;
+               };
+       };
+};
+
+&pcie1 {
+       wifi@0,0 {
+               compatible = "pci14c3,7662";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x8000>;
+               mtd-mac-address = <&bdinfo 0xde00>;
+               mtd-mac-address-increment = <2>;
+               ieee80211-freq-limit = <5000000 6000000>;
+
+               led {
+                       led-sources = <2>;
+                       led-active-low;
+               };
+       };
+};
+
+&gmac0 {
+       mtd-mac-address = <&bdinfo 0xde00>;
+};
+
+&switch0 {
+       ports {
+               port@0 {
+                       status = "okay";
+                       label = "lan4";
+               };
+
+               port@1 {
+                       status = "okay";
+                       label = "lan3";
+               };
+
+               port@2 {
+                       status = "okay";
+                       label = "lan2";
+               };
+
+               port@3 {
+                       status = "okay";
+                       label = "lan1";
+               };
+
+               port@4 {
+                       status = "okay";
+                       label = "wan";
+                       mtd-mac-address = <&bdinfo 0xde00>;
+                       mtd-mac-address-increment = <1>;
+               };
+       };
+};
+
+&state_default {
+       gpio {
+               groups = "wdt", "i2c", "jtag";
+               function = "gpio";
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 39a4d03a425ddfb519f264d6c5c6a6f38e93b5fb..203ca1b90836f97f38556206da9b08ccf64cf8b1 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -222,6 +222,16 @@ define Device/buffalo_wsr-600dhp
 endef
 TARGET_DEVICES += buffalo_wsr-600dhp
 
+define Device/cudy_wr1300
+  $(Device/dsa-migration)
+  IMAGE_SIZE := 15872k
+  DEVICE_VENDOR := Cudy
+  DEVICE_MODEL := WR1300
+  DEVICE_PACKAGES := kmod-mt7603 kmod-mt76x2 kmod-usb2 kmod-usb3 \
+       kmod-usb-ledtrig-usbport
+endef
+TARGET_DEVICES += cudy_wr1300
+
 define Device/dlink_dir-8xx-a1
   $(Device/dsa-migration)
   IMAGE_SIZE := 16000k