ath79: add support for MikroTik RouterBOARD wAPR-2nD (wAP R)

This patch adds support for the MikroTik RouterBOARD wAPR-2nD (wAP R)
router, a weatherproof 2.4 GHz access point with a miniPCI-e slot and
a SIM card slot.

Specifications:

 - SoC: Qualcomm Atheros QCA9533
 - Flash: 16 MB (SPI)
 - RAM: 64 MB
 - Ethernet: 1x 10/100 Mbps (PoE in)
 - WiFi: AR9531 2T2R 2.4 GHz (SoC)
 - miniPCI-e slot
 - 4x green LEDs (1x WiFi, 3x RSSI)
 - 1x reset button

 See https://mikrotik.com/product/RBwAPR-2nD for more details.

Flashing:
 TFTP boot initramfs image and then perform sysupgrade. Follow common
 MikroTik procedure as in https://openwrt.org/toh/mikrotik/common.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>

1 files changed, 71 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9533_mikrotik_routerboard-wapr-2nd.dts b/target/linux/ath79/dts/qca9533_mikrotik_routerboard-wapr-2nd.dts
new file mode 100644
index 0000000000..ba674c13d8
--- /dev/null
+++ b/target/linux/ath79/dts/qca9533_mikrotik_routerboard-wapr-2nd.dts
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca9533_mikrotik_routerboard-16m.dtsi"
+
+/ {
+	compatible = "mikrotik,routerboard-wapr-2nd", "qca,qca9533";
+	model = "MikroTik RouterBOARD wAPR-2nD (wAP R)";
+
+	aliases {
+		led-boot = &led_rssilow;
+		led-failsafe = &led_rssilow;
+		led-upgrade = &led_rssilow;
+		led-running = &led_rssilow;
+		serial0 = &uart;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+
+		led_rssilow: rssilow {
+			label = "green:rssilow";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+
+		rssimedium {
+			label = "green:rssimedium";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		rssihigh {
+			label = "green:rssihigh";
+			gpios = <&gpio 3 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan {
+			label = "green:wlan";
+			gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "phy0tpt";
+		};
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+
+		minipcie {
+			gpio-export,name = "minipcie";
+			gpio-export,output = <1>;
+			gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy0>;
+
+	gmac-config {
+		device = <&gmac>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&eth1 {
+	compatible = "syscon", "simple-mfd";
+};
+
+&pcie0 {
+	status = "okay";
+};