ramips: add support for ASUS RT-N56U B1

Specifications:

SoC: MediaTek MT7621ST (880 MHz)
FLASH: 16 MiB (Macronix MX25L12835FM2I-10G)
RAM: 128 MiB (Nanya NT5CB64M16FP-DH)
WiFi: MediaTek MT7603EN bgn 2x2:2
WiFi: MediaTek MT7612EN an 2x2:2
BTN: Reset, WPS
LED: - Power
- WiFi 2.4 GHz
- WiFi 5 GHz
- WAN
- LAN {1-4}
- USB {1-2}
UART: UART is present as pin hole next to the aluminium capacitor.
3V3 - RX - GND - TX / 115200-8N1
3V3 is the nearest on the aluminium capacitor and nut hole (pin1).
USB: 2 ports
POWER: 12VDC, 1.5A (Barrel 5.5x2.1)

Installation:

Via TFTP:
    Set your computers IP-Address to 192.168.1.75
    Power up the Router with the Reset button pressed.
    Release the Reset button after 5 seconds.
    Upload OpenWRT sysupgrade image via TFTP:
    tftp -4 -v -m binary 192.168.1.1 -c put IMAGE

MAC addresses:

0x4     *:98  2g/wan, label
0x22    *:9c
0x28    *:98
0x8004  *:9c  5g/lan

Though addresses are written to 0x22 and 0x28, it appears that the
vendor firmware actually only uses 0x4 and 0x8004. Thus, we do the
same here.

Signed-off-by: Pavel Chervontsev <cherpash@gmail.com>
[add MAC address overview, add label-mac-device, fix IMAGE_SIZE]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

diff --git a/target/linux/ramips/dts/mt7621_asus_rt-n56u-b1.dts b/target/linux/ramips/dts/mt7621_asus_rt-n56u-b1.dts
new file mode 100644 (file)
index 0000000..b78e594
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_asus_rt-n56u-b1.dts
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+       compatible = "asus,rt-n56u-b1", "mediatek,mt7621-soc";
+       model = "ASUS RT-N56U B1";
+
+       aliases {
+               label-mac-device = &wan;
+               led-boot = &led_power;
+               led-failsafe = &led_power;
+               led-running = &led_power;
+               led-upgrade = &led_power;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,115200";
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led_power: power {
+                       label = "blue:power";
+                       gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+               };
+
+               wlan2g {
+                       label = "blue:wlan2g";
+                       gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy0tpt";
+               };
+
+               wlan5g {
+                       label = "blue:wlan5g";
+                       gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy1tpt";
+               };
+
+               wan {
+                       label = "blue:wan";
+                       gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+               };
+
+               lan {
+                       label = "blue:lan";
+                       gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+               };
+
+               usb {
+                       label = "blue:usb";
+                       gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+                       trigger-sources = <&xhci_ehci_port1>, <&ehci_port2>;
+                       linux,default-trigger = "usbport";
+               };
+       };
+
+       keys {
+               compatible = "gpio-keys";
+
+               wps {
+                       label = "wps";
+                       gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+                       linux,code = <KEY_WPS_BUTTON>;
+                       debounce-interval = <60>;
+               };
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+                       debounce-interval = <60>;
+               };
+       };
+};
+
+&spi0 {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <50000000>;
+               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 = "config";
+                               reg = <0x30000 0x10000>;
+                               read-only;
+                       };
+
+                       factory: partition@40000 {
+                               label = "factory";
+                               reg = <0x40000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@50000 {
+                               compatible = "denx,uimage";
+                               label = "firmware";
+                               reg = <0x50000 0xfb0000>;
+                       };
+               };
+       };
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie0 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x8000>;
+       };
+};
+
+&pcie1 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x0000>;
+       };
+};
+
+&gmac0 {
+       mtd-mac-address = <&factory 0x8004>;
+};
+
+&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";
+               };
+
+               wan: port@4 {
+                       status = "okay";
+                       label = "wan";
+                       mtd-mac-address = <&factory 0x4>;
+               };
+       };
+};
+
+&state_default {
+       gpio {
+               groups = "uart3", "uart2", "jtag", "wdt";
+               function = "gpio";
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index ce9a3ae3d23f4004c64b13d55f1fad919bc82154..7b8a73c1bd7b09c7dd0bfc277371a5e613fca6db 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -188,6 +188,17 @@ define Device/asus_rt-ac85p
 endef
 TARGET_DEVICES += asus_rt-ac85p
 
+define Device/asus_rt-n56u-b1
+  $(Device/dsa-migration)
+  DEVICE_VENDOR := ASUS
+  DEVICE_MODEL := RT-N56U
+  DEVICE_VARIANT := B1
+  IMAGE_SIZE := 16064k
+  DEVICE_PACKAGES := kmod-mt7603 kmod-mt76x2 kmod-usb3 \
+       kmod-usb-ledtrig-usbport
+endef
+TARGET_DEVICES += asus_rt-n56u-b1
+
 define Device/buffalo_wsr-1166dhp
   $(Device/dsa-migration)
   $(Device/uimage-lzma-loader)

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 3dd2a218b9a5543168ee3a0991bc5eff551576bc..cd1814cc2bfb3fd9255a95d87e88f199965a6d47 100755 (executable)
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -8,6 +8,10 @@ board=$(board_name)
 board_config_update
 
 case $board in
+asus,rt-n56u-b1)
+       ucidef_set_led_netdev "lan" "LAN link" "blue:lan" "br-lan"
+       ucidef_set_led_netdev "wan" "WAN link" "blue:wan" "wan"
+       ;;
 d-team,newifi-d2)
        ucidef_set_led_netdev "internet" "internet" "amber:internet" "wan"
        ucidef_set_led_netdev "wlan2g" "WiFi 2.4GHz" "blue:wlan2g" "wlan0"