ath79: add support for devolo WiFi pro 1200e

Hardware
--------
CPU:   Qualcomm Atheros QCA9558
RAM:   128M DDR2
FLASH: 16MiB
ETH:   1x Atheros AR8035 (PoE in)
       1x Atheros AR8033
WiFi2: QCA9558 2T2R
WiFi5: QCA9880 2T2R
BTN:   1x Reset
LED:   1x LED blue
       1x LED red
BEEP:  1x GPIO attached piezo beeper
UART:  3.3V GND TX RX (115200-N-8) (3.3V is square pad)
       Header is located next to reset-button

Installation
------------
Make sure you set a password for the root user as prompted on first
setup!

1. Upload OpenWRT sysupgrade image via SSH to the device.
Use /tmp as the destination folder on the device.
User is root, password the one set in the web interface.

2. Install OpenWRT with

> sysupgrade -n -F /tmp/<openwrt-image-name>

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

2 files changed, 196 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9558_devolo_dvl1200e.dts b/target/linux/ath79/dts/qca9558_devolo_dvl1200e.dts
new file mode 100644
index 0000000000..3bca23cc57
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_devolo_dvl1200e.dts
@@ -0,0 +1,47 @@
+// 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 "qca9558_devolo_dvl1xxx.dtsi"
+
+/ {
+	compatible = "devolo,dvl1200e", "qca,qca9557";
+	model = "devolo WiFi pro 1200e";
+
+	aliases {
+		led-boot = &status_blue;
+		led-failsafe = &status_red;
+		led-running = &status_blue;
+		led-upgrade = &status_red;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		status_blue: status_blue {
+			label = "dvl1200e:blue:status";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		status_red: status_red {
+			label = "dvl1200e:red:status";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	beeper {
+		compatible = "gpio-beeper";
+		gpios = <&gpio 4 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&mdio1 {
+	status = "okay";
+};
+
+&eth1 {
+	status = "okay";
+};
diff --git a/target/linux/ath79/dts/qca9558_devolo_dvl1xxx.dtsi b/target/linux/ath79/dts/qca9558_devolo_dvl1xxx.dtsi
new file mode 100644
index 0000000000..9937186b1e
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_devolo_dvl1xxx.dtsi
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/*
+ * The hardware of this board family is most likely shared with other devices
+ * from other manufacturers.
+ * Devolo seems to use hardware from Edimax, namely the Edimax WAP1750.
+ *
+ * The base board is identical but the single models differ in number of
+ * buttons, ethernet ports, external console, USB, external / internal
+ * antennas and number of spatial streams.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "qca9557.dtsi"
+
+/ {
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "Reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	watchdog {
+		compatible = "linux,wdt-gpio";
+		gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		hw_algo = "toggle";
+		hw_margin_ms = <300>;
+		always-running;
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&gpio {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x040000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x040000 0x010000>;
+				read-only;
+			};
+
+			art: partition@50000 {
+				label = "art";
+				reg = <0x050000 0x010000>;
+				read-only;
+			};
+
+			partition@60000 {
+				label = "art_bak";
+				reg = <0x060000 0x010000>;
+				read-only;
+			};
+
+			partition@70000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x070000 0xf90000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy4: ethernet-phy@4 {
+		reg = <4>;
+		at803x-disable-smarteee;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&art 0x00>;
+	phy-handle = <&phy4>;
+	pll-data = <0xae000000 0x80000101 0x80001313>;
+
+	gmac_config: gmac-config {
+		device = <&gmac>;
+
+		rxdv-delay = <3>;
+		rxd-delay = <3>;
+		txen-delay = <0>;
+		txd-delay = <0>;
+		rgmii-enabled = <1>;
+	};
+};
+
+&mdio1 {
+	phy1: ethernet-phy@1 {
+		reg = <1>;
+	};
+};
+
+&eth1 {
+	mtd-mac-address = <&art 0x00>;
+	mtd-mac-address-increment = <1>;
+	phy-handle = <&phy1>;
+	pll-data = <0x03000101 0x00000101 0x00001313>;
+};
+
+&wmac {
+	status = "okay";
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&art 0x00>;
+	mtd-mac-address-increment = <(-2)>;
+};