ath79: add support for D-Link DIR-505

This commit adds support for the D-Link DIR-505, previously supported in
ar71xx.

Hardware
--------
SoC:   Atheros AR9330
FLASH: 8M SPI-NOR
RAM:   64M
WIFI:  1T1R 1SS Atheros AR9330
LED:   Power green, Status red
BTN:   WPS, Reset

Installation
------------
Currently, installation is only possible by sysupgrading from an earlier
OpenWrt version, U-Boot TFTP or a modded U-Boot. I do not have the
original bootloader from D-Link on my device anymore, so i cannot test
the factory image.

Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/ath79/dts/ar9330_dlink_dir-505.dts

@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9330.dtsi"
+
+/ {
+	model = "D-Link DIR-505";
+	compatible = "dlink,dir-505", "qca,ar9330";
+
+	aliases {
+		serial0 = &uart;
+		led-boot = &led_power_green;
+		led-failsafe = &led_status_red;
+		led-running = &led_power_green;
+		led-upgrade = &led_status_red;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "WPS button";
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		reset {
+			label = "Reset button";
+			gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&jtag_disable_pins>;
+
+		led_power_green: power {
+			label = "d-link:green:power";
+			gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_red: status {
+			label = "d-link:red:status";
+			gpios = <&gpio 26 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};
+
+&gpio {
+	status = "okay";
+
+	led_enable {
+		gpio-hog;
+		output-low;
+		gpios = <1 GPIO_ACTIVE_LOW>;
+		line-name = "d-link:power:led";
+	};
+};
+
+&usb {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&eth0 {
+	status = "okay";
+
+	gmac-config {
+		device = <&gmac>;
+		switch-phy-addr-swap = <0>;
+		switch-phy-swap = <0>;
+	};
+};
+
+&eth1 {
+	compatible = "syscon", "simple-mfd";
+	status = "okay";
+};
+
+&spi {
+	num-chipselects = <1>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		reg = <0>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x10000>;
+				read-only;
+			};
+
+			art: partition@10000 {
+				label = "art";
+				reg = <0x10000 0x10000>;
+				read-only;
+			};
+
+			mac: partition@20000 {
+				label = "mac";
+				reg = <0x20000 0x10000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "nvram";
+				reg = <0x30000 0x10000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "language";
+				reg = <0x40000 0x40000>;
+				read-only;
+			};
+
+			partition@80000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x80000 0x780000>;
+			};
+		};
+	};
+};
+
+&wmac {
+	status = "okay";
+	qca,no-eeprom;
+};

target/linux/ath79/generic/base-files/etc/board.d/02_network

@@ -18,6 +18,7 @@ ath79_setup_interfaces()
 	devolo,dvl1750c|\
 	devolo,dvl1750i|\
 	devolo,dvl1750x|\
+	dlink,dir-505|\
 	engenius,ecb1750|\
 	glinet,gl-ar300m-lite|\
 	netgear,ex6400|\
@@ -315,6 +316,9 @@ ath79_setup_macs()
 		lan_mac=$(mtd_get_mac_text "caldata" 0xffa0)
 		wan_mac=$(mtd_get_mac_text "caldata" 0xffb4)
 		;;
+	dlink,dir-505)
+		lan_mac=$(mtd_get_mac_text "mac" 0x4)
+		;;
 	dlink,dir-825-c1|\
 	dlink,dir-835-a1)
 		lan_mac=$(mtd_get_mac_text "mac" 0x4)

target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom

@@ -12,6 +12,7 @@ case "$FIRMWARE" in
 	avm,fritz4020)
 		caldata_extract_reverse "urlader" 0x1541 0x440
 		;;
+	dlink,dir-505|\
 	dlink,dir-825-c1|\
 	dlink,dir-835-a1)
 		caldata_extract "art" 0x1000 0x440

target/linux/ath79/image/generic.mk

@@ -373,6 +373,16 @@ define Device/devolo_dvl1750x
 endef
 TARGET_DEVICES += devolo_dvl1750x
 
+define Device/dlink_dir-505
+  SOC := ar9330
+  DEVICE_VENDOR := D-Link
+  DEVICE_MODEL := DIR-505
+  IMAGE_SIZE := 7680k
+  DEVICE_PACKAGES := kmod-usb2
+  SUPPORTED_DEVICES += dir-505-a1
+endef
+TARGET_DEVICES += dlink_dir-505
+
 define Device/dlink_dir-825-b1
   SOC := ar7161
   DEVICE_VENDOR := D-Link