ath79: add support for MikroTik RouterBOARD wAP G-5HacT2HnD

This commit adds support for the MikroTik RouterBOARD wAP G-5HacT2HnD
(wAP AC), a small weatherproof dual band, dual-radio 802.11ac
wireless AP with integrated omnidirectional anntennae and one
10/100/1000 Mbps Ethernet port.

See https://mikrotik.com/product/RBwAPG-5HacT2HnD for more info.

Specifications:
 - SoC: Qualcomm Atheros QCA9556
 - RAM: 64 MB
 - Storage: 16 MB NOR
 - Wireless:
   · Atheros AR9550 (SoC) 802.11b/g/n 2x2:2, 2 dBi antennae
   · Qualcomm QCA9880 802.11a/n/ac 3x3:3, 2 dBi antennae
 - Ethernet: Atheros AG71xx (SoC, AR8033), 1x 1000/100/10 port,
   passive PoE in

Working:
 - Board/system detection
 - Sysupgrade
 - Serial console
 - Ethernet
 - 2.4 GHz radio
 - 5 GHz radio and LED
 - Reset button

Not working/Unsupported:
 - 2.4 GHz LED
 - AP/CAP LED
 - ZT2046Q SPI temperature and voltage sensor

This adds the basic features for supporting MikroTik devices:
 - a common recipe for mikrotik images in common-mikrotik.mk
 - support for minor (MikroTik NOR) split firmware (only for
   generic subtarget so far)

Acknowledgments: Robert Marko <robimarko@gmail.com>
                 Andrew Cameron <apcameron@softhome.net>
                 Koen Vandeputte <koen.vandeputte@ncentric.com>
                 Chuanhong Guo <gch981213@gmail.com>

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Co-developed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9556_mikrotik_routerboard-wap-g-5hact2hnd.dts b/target/linux/ath79/dts/qca9556_mikrotik_routerboard-wap-g-5hact2hnd.dts
new file mode 100644
index 0000000000..e13b58b600
--- /dev/null
+++ b/target/linux/ath79/dts/qca9556_mikrotik_routerboard-wap-g-5hact2hnd.dts
@@ -0,0 +1,138 @@
+// 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 "qca9557.dtsi"
+
+/ {
+	compatible = "mikrotik,routerboard-wap-g-5hact2hnd", "qca,qca9556";
+	model = "MikroTik RouterBOARD wAP G-5HacT2HnD";
+
+	aliases {
+		label-mac-device = &eth1;
+		mdio-gpio1 = &mdio2;
+		serial0 = &uart;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	mdio2: mdio {
+		compatible = "virtual,mdio-gpio";
+
+		gpios = <&gpio 12 GPIO_ACTIVE_HIGH>, /* MDC */
+			<&gpio 11 GPIO_ACTIVE_HIGH>; /* MDIO */
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+			device_type = "ethernet-phy";
+
+			phy-mode = "sgmii";
+
+			at803x-override-sgmii-link-check;
+		};
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&art 0x10>;
+
+	pll-data = <0x03000101 0x80000101 0x80001313>;
+	phy-handle = <&phy0>;
+
+	qca955x-sgmii-fixup;
+
+	gmac-config {
+		device = <&gmac>;
+	};
+};
+
+&spi {
+	status = "okay";
+
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <104000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "routerboot";
+				reg = <0x000000 0x00e000>;
+				read-only;
+			};
+
+			art: partition@e000 {
+				label = "art";
+				reg = <0x000e000 0x001000>;
+				read-only;
+			};
+
+			partition@f000 {
+				label = "bios";
+				reg = <0x000f000 0x001000>;
+				read-only;
+			};
+
+			partition@10000 {
+				label = "routerboot2";
+				reg = <0x010000 0x00f000>;
+				read-only;
+			};
+
+			partition@1f000 {
+				label = "soft_config";
+				reg = <0x001f000 0x001000>;
+			};
+
+			partition@20000 {
+				compatible = "mikrotik,minor";
+				label = "firmware";
+				reg = <0x020000 0xfe0000>;
+			};
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+
+	qca,no-eeprom;
+};
+
+&pcie0 {
+	status = "okay";
+
+	wifi@0,0 {
+		compatible = "qcom,ath10k";
+		reg = <0 0 0 0 0>;
+	};
+};