ath79: add support for TP-Link TL-WR941HP v1

Specifications:
    SOC:        Qualcomm Atheros TP9343 (750 MHz)
    Flash:      8 Mb (GigaDevice GD25Q64CSIG)
    RAM:        64 Mb (Zentel A3R12E40DBF-8E)
    Serial:     yes, 4-pin header
    Wlan:       Qualcomm Atheros TP9343, antenna: MIM0 3x3:3 RP-SMA
                3 x 2.4GHz power amp module Skyworks (SiGe) SE2576L
    Ethernet:   Qualcomm Atheros TP9343
    Lan speed:  100M ports: 4
    Lan speed:  100M ports: 1
    Other info: same case, ram and flash that TP-Link TL-WR841HP,
                different SOC

    https://forum.openwrt.org/t/adding-device-support-tp-link-wr941hp/

Label MAC addresses based on vendor firmware:
    LAN   *:ee  label
    WAN   *:ef  label +1
    WLAN  *:ee  label

    The label MAC address found in "config" partition at 0x8

Flash instruction:
    Upload the generated factory firmware on web interface.

Signed-off-by: Diogenes Rengo <rengocbx250@gmail.com>
[remove various whitespace issues, squash commits, use short 0x0]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 154 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/tp9343_tplink_tl-wr941hp-v1.dts b/target/linux/ath79/dts/tp9343_tplink_tl-wr941hp-v1.dts
new file mode 100644
index 0000000000..7451f00740
--- /dev/null
+++ b/target/linux/ath79/dts/tp9343_tplink_tl-wr941hp-v1.dts
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca956x.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "tplink,tl-wr941hp-v1", "qca,tp9343";
+	model = "TP-Link TL-WR941HP v1";
+
+	aliases {
+		label-mac-device = &wmac;
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		re {
+			label = "blue:re";
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+		};
+
+		wifi {
+			label = "blue:wifi";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led_power: power {
+			label = "blue:power";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		wan_blue {
+			label = "blue:wan";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		wan_red {
+			label = "red:wan";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan {
+			label = "blue:lan";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+		};
+
+		wps {
+			label = "blue:wps";
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		re {
+			label = "range extender button";
+			linux,code = <BTN_0>;
+			gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		wifi {
+			label = "wifi button";
+			linux,code = <KEY_RFKILL>;
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps button";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uboot: partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				compatible = "tplink,firmware";
+				label = "firmware";
+				reg = <0x020000 0x730000>;
+			};
+
+			config: partition@750000 {
+				label = "config";
+				reg = <0x750000 0x0a0000>;
+				read-only;
+			};
+
+			art: partition@7f0000 {
+				label = "art";
+				reg = <0x7f0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy0>;
+
+	mtd-mac-address = <&config 0x8>;
+	mtd-mac-address-increment = <1>;
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&config 0x8>;
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&config 0x8>;
+};