ath79: add support for MikroTik RouterBOARD 962UiGS-5HacT2HnT (hAP ac)

This patch adds support for the MikroTik RouterBOARD 962UiGS-5HacT2HnT (hAP ac)

Specifications:
- SoC: QCA9558
- RAM: 128 MB
- Flash: 16 MB SPI
- 2.4GHz WLAN: 3x3:3 802.11n on SoC
- 5GHz WLAN: 3x3:3 802.11ac on QCA9880 connected via PCIe
- Switch: 5x 1000/100/10 on QCA8337 connected via RGMII
- SFP cage: connected via SGMII (tested with genuine & generic GLC-T)
- USB: 1x type A, GPIO power switch
- PoE: Passive input on Ether1, GPIO switched passthrough to Ether5
- Reset button
- "SFP" LED connected to SoC
- Ethernet LEDs connected to QCA8337 switch
- Green WLAN LED connected to QCA9880

Not working:
- Red WLAN LED

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

Signed-off-by: Ryan Mounce <ryan@mounce.com.au>
(cherry picked from commit c2140e32ce32b9cc60f7d408e20bdf45dce6a634)

2 files changed, 235 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9558_mikrotik_routerboard-962uigs-5hact2hnt.dts b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-962uigs-5hact2hnt.dts
new file mode 100644
index 0000000000..f3fc31af14
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-962uigs-5hact2hnt.dts
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca9558_mikrotik_routerboard-96x.dtsi"
+
+/ {
+	compatible = "mikrotik,routerboard-962uigs-5hact2hnt", "qca,qca9558";
+	model = "MikroTik RouterBOARD 962UiGS-5HacT2HnT (hAP ac)";
+
+	gpio-export {
+		compatible = "gpio-export";
+
+		port5_poe {
+			gpio-export,name = "port5-poe";
+			gpio-export,output = <1>;
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio {
+	input-poe-out-compat {
+		gpio-hog;
+		gpios = <2 GPIO_ACTIVE_HIGH>;
+		input;
+		line-name = "PoE out compat";
+	};
+};
+
+&wmac {
+	status = "okay";
+
+	qca,no-eeprom;
+};
+
+&pcie1 {
+	status = "okay";
+};
diff --git a/target/linux/ath79/dts/qca9558_mikrotik_routerboard-96x.dtsi b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-96x.dtsi
new file mode 100644
index 0000000000..e1de96e40c
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-96x.dtsi
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca955x.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	aliases {
+		led-boot = &led_user;
+		led-failsafe = &led_user;
+		led-upgrade = &led_user;
+		serial0 = &uart;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_user: user {
+			label = "green:user";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+
+		buzzer {
+			/* Beeper requires PWM for frequency selection */
+			gpio-export,name = "buzzer";
+			gpio-export,output = <0>;
+			gpios = <&gpio 4 GPIO_ACTIVE_HIGH>;
+		};
+
+		usb_power {
+			gpio-export,name = "usb-power";
+			gpio-export,output = <0>;
+			gpios = <&gpio 13 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	i2c: i2c {
+		compatible = "i2c-gpio";
+
+		sda-gpios = <&gpio 18 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpio 19 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		i2c-gpio,delay-us = <5>;
+		i2c-gpio,timeout-ms = <1>;
+	};
+
+	sfp1: sfp {
+		compatible = "sff,sfp";
+
+		i2c-bus = <&i2c>;
+		maximum-power-milliwatt = <1000>;
+		los-gpios = <&gpio 21 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		tx-disable-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		// Toggling GPIO16 actually enables/disables the transmitter,
+		// but the SFP driver does not seem to be using it.
+	};
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "RouterBoot";
+				reg = <0x0 0x20000>;
+				read-only;
+				compatible = "mikrotik,routerboot-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "bootloader1";
+					reg = <0x0 0x0>;
+					read-only;
+				};
+
+				hard_config {
+					read-only;
+				};
+
+				bios {
+					size = <0x1000>;
+					read-only;
+				};
+
+				partition@10000 {
+					label = "bootloader2";
+					reg = <0x10000 0x0>;
+					read-only;
+				};
+
+				soft_config {
+				};
+			};
+
+			partition@20000 {
+				compatible = "mikrotik,minor";
+				label = "firmware";
+				reg = <0x020000 0xfe0000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+
+		qca,ar8327-initvals = <
+			/* PAD0_MODE from vendor firmware
+			 * RGMII_EN, TX/RXCLK_DELAY_EN, TXCLK_DELAY_SEL=1
+			 */
+			0x04 0x07400000 /* PAD0_MODE */
+			0x50 0xc737c737 /* LED_CTRL0 */
+			0x54 0x00000000 /* LED_CTRL1 */
+			0x58 0x00000000 /* LED_CTRL2 */
+			0x5c 0x0030c300 /* LED_CTRL3 */
+			0x7c 0x0000007e /* PORT0_STATUS */
+			>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&phy0>;
+	/* gigabit pll-data from vendor firmware
+	 * TX_INVERT, TX_DELAY=3, GIGE, OFFSET_PHASE
+	 */
+	pll-data = <0x8f000000 0x00000101 0x00001616>;
+
+	gmac-config {
+		device = <&gmac>;
+		rgmii-enabled = <1>;
+	};
+};
+
+&mdio1 {
+	status = "okay";
+
+	phy_sfp: ethernet-phy@0 {
+		reg = <0>;
+		phy-mode = "sgmii";
+		sfp = <&sfp1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	phy-handle = <&phy_sfp>;
+	pll-data = <0x03000000 0x00000101 0x00001616>;
+	qca955x-sgmii-fixup;
+
+	gmac-config {
+		device = <&gmac>;
+	};
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&usb0 {
+	status = "okay";
+};
+
+&usb_phy0 {
+	status = "okay";
+};