ath79: add support for GL.iNet GL-AR750S

Right now this patch adds nor image generation only. NAND image
generation is not supportet at the moment.

Furtheremore support for the MicroSD port is not implemented as of now.

Specification:
- SOC: QCA9563 (775MHz)
- Flash: 16 MiB (W25Q128FVSG)
- RAM: 128 MiB DDR2
- Ethernet: 2x 1Gbps LAN + 1x 1Gbps WAN
- Wireless: 2.4GHz (bgn) and 5GHz (ac)
- USB: 1x USB 2.0 port
- Button: 1x switch button, 1x reset button
- LED: 3x LEDS (green)
  - Another LED can be accessed on GPIO 7 if soldered

Flash instruction:
- Set static ip to 192.168.1.2
- Unplug the power cord
- Hold reset button
- Plug power back in
- Right led will flash 5 times
- Release reset button
- Browse to 192.168.1.1
- Choose sysupgrade image in NOR-flash section
- Press "update nor firmware"
- After successful transfer unplug network cable before device restarts

Signed-off-by: Christoph Krapp <achterin@googlemail.com>
[resolve merge conflicts, rename buttons, use switch input type for mode
switch]
Signed-off-by: Mathias Kresin <dev@kresin.me>

4 files changed, 172 insertions, 4 deletions

diff --git a/target/linux/ath79/base-files/etc/board.d/02_network b/target/linux/ath79/base-files/etc/board.d/02_network
index 1251048e08..cd786c2b79 100755
--- a/target/linux/ath79/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/base-files/etc/board.d/02_network
@@ -93,6 +93,10 @@ ath79_setup_interfaces()
 	glinet,gl-x750)
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		;;
+	glinet,ar750s)
+		ucidef_add_switch "switch0" \
+			"0@eth0" "2:lan:2" "3:lan:1" "1:wan"
+		;;
 	nec,wg800hp)
 		ucidef_add_switch "switch0" \
 			"0@eth0" "2:lan" "3:lan" "4:lan" "1:wan"
diff --git a/target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index b9a987d418..990c40c934 100644
--- a/target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -96,6 +96,11 @@ case "$FIRMWARE" in
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(mtd_get_mac_ascii devdata "wlan5mac")
 		;;
+	glinet,ar750s|\
+	tplink,re450-v2)
+		ath10kcal_extract "art" 20480 2116
+		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
+		;;
 	glinet,gl-x750)
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
@@ -126,10 +131,6 @@ case "$FIRMWARE" in
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) -1)
 		;;
-	tplink,re450-v2)
-		ath10kcal_extract "art" 20480 2116
-		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
-		;;
 	ubnt,unifiac-lite|\
 	ubnt,unifiac-mesh|\
 	ubnt,unifiac-mesh-pro|\
diff --git a/target/linux/ath79/dts/qca9563_glinet_ar750s.dts b/target/linux/ath79/dts/qca9563_glinet_ar750s.dts
new file mode 100644
index 0000000000..ab33bc13e3
--- /dev/null
+++ b/target/linux/ath79/dts/qca9563_glinet_ar750s.dts
@@ -0,0 +1,154 @@
+// 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 "qca956x.dtsi"
+
+/ {
+	compatible = "glinet,ar750s", "qca,qca9563";
+	model = "GL.iNet GL-AR750S";
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	aliases {
+		led-boot = &power;
+		led-failsafe = &power;
+		led-running = &power;
+		led-upgrade = &power;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&jtag_disable_pins>;
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+		};
+
+		mode {
+			label = "mode";
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power: power {
+			label = "gl-ar750s:green:power";
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			default-state = "keep";
+		};
+
+		wlan2g {
+			label = "gl-ar750s:green:wlan2g";
+			gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+
+		wlan5g {
+			label = "gl-ar750s:green:wlan5g";
+			gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "phy0tpt";
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+	num-cs = <0>;
+
+	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>;
+			};
+
+			art: partition@50000 {
+				label = "art";
+				reg = <0x050000 0x010000>;
+			};
+
+			partition@60000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x060000 0xfa0000>;
+			};
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hub_port: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&usb_phy0 {
+	status = "okay";
+};
+
+&mdio0 {
+	status = "okay";
+	phy-mask = <0>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		phy-mode = "sgmii";
+		qca,ar8327-initvals = <
+			0x04 0x00080080 /* PORT0 PAD MODE CTRL */
+			0x7c 0x0000007e /* PORT0_STATUS */
+		>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&art 0x0>;
+	phy-handle = <&phy0>;
+};
+
+&wmac {
+	status = "okay";
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&art 0x1002>;
+};
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 8dd5dab7ca..2f9b2c9d7e 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -266,6 +266,15 @@ define Device/glinet_ar300m-nor
 endef
 TARGET_DEVICES += glinet_ar300m-nor
 
+define Device/glinet_ar750s
+  ATH_SOC := qca9563
+  DEVICE_TITLE := GL.iNet GL-AR750S
+  DEVICE_PACKAGES := kmod-usb2 kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  IMAGE_SIZE := 16000k
+  SUPPORTED_DEVICES += gl-ar750s
+endef
+TARGET_DEVICES += glinet_ar750s
+
 define Device/glinet_gl-x750
   ATH_SOC := qca9531
   DEVICE_TITLE := GL.iNet GL-X750