ramips: add support for HUMAX E2

HUMAX E2 (also known as HUMAX QUANTUM E2) is a 2.4/5GHz band AC router,
based on MediaTek MT7620A.

Specifications:
- SoC: MT7620A
- RAM: DDR2 64MB
- Flash: SPI NOR 8MB (MXIC MX25L6405D)
- WiFi:
  - 2.4GHz: SoC internal
  - 5GHz: MT7610E
- Ethernet: 1x 10/100Mbps
  - Switch: SoC internal
- UART: J2 (57600 8N1)
  - pinout: [3V3] (RXD) (GND) (TXD)

Installation and Recovery via TFTP:
1. Connect ethernet cable between Router port and PC Ethernet port.
2. Set your computer to a static IP **192.168.1.1**
3. Turn the device off and wait a few seconds. Hold the WPS button on front
   of device and insert power.
4. Send a firmware image to **192.168.1.6** using TFTP.
   You can use any TFTP client. (tftp, curl, Tftpd64...)
5. Wait until Power LED stop flashing. **DO NOT TURN OFF DEVICE!**
   The device will be automatically rebooted.

Signed-off-by: Kyoungkyu Park <choryu.park@choryu.space>

diff --git a/target/linux/ramips/dts/mt7620a_humax_e2.dts b/target/linux/ramips/dts/mt7620a_humax_e2.dts
new file mode 100644 (file)
index 0000000..2a2ad90
--- /dev/null
+++ b/target/linux/ramips/dts/mt7620a_humax_e2.dts
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/mtd/partitions/uimage.h>
+
+/ {
+       compatible = "humax,e2", "ralink,mt7620a-soc";
+       model = "HUMAX E2";
+
+       aliases {
+               led-boot = &led_power;
+               led-failsafe = &led_power;
+               led-running = &led_power;
+               led-upgrade = &led_power;
+               label-mac-device = &ethernet;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led_power: power {
+                       label = "green:power";
+                       gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
+               };
+
+               pairing {
+                       label = "green:pairing";
+                       gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+               };
+
+               wlan {
+                       label = "green:wlan";
+                       gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+               };
+
+               lan {
+                       label = "green:lan";
+                       gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+               };
+
+               wps {
+                       label = "green:wps";
+                       gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       keys {
+               compatible = "gpio-keys";
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+               };
+       };
+};
+
+&gpio1 {
+       status = "okay";
+};
+
+&spi0 {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <50000000>;
+
+               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 0x30000>;
+                               read-only;
+
+                               compatible = "nvmem-cells";
+                               #address-cells = <1>;
+                               #size-cells = <1>;
+
+                               macaddr_factory_10007: macaddr@10007 {
+                                       reg = <0x10007 0x6>;
+                               };
+                       };
+
+                       partition@70000 {
+                               compatible = "openwrt,uimage", "denx,uimage";
+                               openwrt,offset = <FW_EDIMAX_OFFSET>;
+                               openwrt,partition-magic = <FW_MAGIC_EDIMAX>;
+                               label = "firmware";
+                               reg = <0x70000 0x790000>;
+                       };
+               };
+       };
+};
+
+&ethernet {
+       nvmem-cells = <&macaddr_factory_10007>;
+       nvmem-cell-names = "mac-address";
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie0 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x8000>;
+               ieee80211-freq-limit = <5000000 6000000>;
+       };
+};
+
+&wmac {
+       ralink,mtd-eeprom = <&factory 0x0>;
+};
+
+&state_default {
+       gpio {
+               groups = "rgmii1";
+               function = "gpio";
+       };
+};

diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index c758da5795d99d16ed21dcb147884b4926435aed..498170236a75821d29666ea5672e31a47a2c5498 100644 (file)
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -526,6 +526,20 @@ define Device/hnet_c108
 endef
 TARGET_DEVICES += hnet_c108
 
+define Device/humax_e2
+  SOC := mt7620a
+  IMAGE_SIZE := 7744k
+  DEVICE_VENDOR := HUMAX
+  DEVICE_MODEL := E2
+  DEVICE_ALT0_VENDOR := HUMAX
+  DEVICE_ALT0_MODEL := QUANTUM E2
+  IMAGE/sysupgrade.bin := append-kernel | append-rootfs | \
+       edimax-header -s CSYS -m RN75 -f 0x70000 -S 0x01100000 | pad-rootfs | \
+       check-size | append-metadata
+  DEVICE_PACKAGES := kmod-mt76x0e
+endef
+TARGET_DEVICES += humax_e2
+
 define Device/sunvalley_filehub_common
   SOC := mt7620n
   IMAGE_SIZE := 6144k

diff --git a/target/linux/ramips/mt7620/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7620/base-files/etc/board.d/01_leds
index 694f3d15411086b1ee65c44ea75903671bc11134..8d438538fc6d36e68ba48a0d4f3bec63fe98e95b 100644 (file)
--- a/target/linux/ramips/mt7620/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7620/base-files/etc/board.d/01_leds
@@ -125,6 +125,9 @@ hnet,c108)
        ucidef_set_led_netdev "lan" "lan" "green:lan" "eth0"
        ucidef_set_led_netdev "modem" "modem" "green:modem" "wwan0"
        ;;
+humax,e2)
+       ucidef_set_led_netdev "lan" "lan" "green:lan" "eth0"
+       ;;
 iodata,wn-ac1167gr|\
 iodata,wn-ac733gr3)
        ucidef_set_led_wlan "wlan5g" "WLAN5G" "green:wlan5g" "phy0radio"

diff --git a/target/linux/ramips/mt7620/base-files/etc/board.d/02_network b/target/linux/ramips/mt7620/base-files/etc/board.d/02_network
index a64891f94a2655de036f97c4eb5abdb699c185d0..ea8394ec59c833f0dbad1b4c690bb982bd61f3fb 100644 (file)
--- a/target/linux/ramips/mt7620/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt7620/base-files/etc/board.d/02_network
@@ -100,7 +100,8 @@ ramips_setup_interfaces()
                        "0:lan:1" "1:lan:2" "2:lan:3" "3:lan:4" "4:wan:5" "6@eth0"
                ;;
        comfast,cf-wr800n|\
-       hnet,c108)
+       hnet,c108|\
+       humax,e2)
                ucidef_add_switch "switch0" \
                        "4:lan" "6@eth0"
                ;;