ath79: add support for Hak5 Packet Squirrel

Hak5 Packet Squirrel is a pocket-sized device dedicated for pentesters
(MITM attacks). This device is based on Atheros AR9331 but it lacks
WiFi. Support for it was first introduced in 950b278c81 (ar71xx).

Specifications:

- Atheros AR9331
- 400/400/200 MHz (CPU/DDR/AHB)
- 64 MB of RAM (DDR2)
- 16 MB of flash (SPI NOR)
- 2x RJ45 10/100 Mbps Ethernet (AR9331)
- 1x USB 2.0
- 1x RGB LED, 1x button, 1x 4-way mechanical switch
- 1x Micro USB Type-B for main power input

Flash instruction:

You can use sysupgrade image directly in vendor firmware which is based
on OpenWrt/LEDE.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

3 files changed, 167 insertions, 95 deletions

diff --git a/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dts b/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dts
index e6f083482f..8b9ece07ef 100644
--- a/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dts
+++ b/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dts
@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 
-#include "ar9331.dtsi"
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/input/input.h>
+#include "ar9331_hak5_lan-turtle.dtsi"
 
 / {
 	model = "Hak5 LAN Turtle";
@@ -13,21 +10,6 @@
 		led-boot = &led_system;
 		led-failsafe = &led_system;
 		led-upgrade = &led_system;
-		serial0 = &uart;
-	};
-
-	keys {
-		compatible = "gpio-keys";
-
-		pinctrl-names = "default";
-		pinctrl-0 = <&enable_gpio11>;
-
-		reset {
-			label = "reset";
-			linux,code = <KEY_RESTART>;
-			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
-			debounce-interval = <60>;
-		};
 	};
 
 	leds {
@@ -42,79 +24,3 @@
 		};
 	};
 };
-
-&eth0 {
-	status = "okay";
-
-	mtd-mac-address = <&uboot 0x1fc00>;
-	mtd-mac-address-increment = <(-1)>;
-
-	gmac-config {
-		device = <&gmac>;
-
-		switch-phy-addr-swap = <1>;
-		switch-phy-swap = <1>;
-	};
-};
-
-&eth1 {
-	status = "okay";
-
-	mtd-mac-address = <&uboot 0x1fc00>;
-	mtd-mac-address-increment = <1>;
-};
-
-&pinmux {
-	enable_gpio11: pinmux_enable_gpio11 {
-		pinctrl-single,bits = <0x0 0x0 0x4>;
-	};
-};
-
-&spi {
-	status = "okay";
-
-	num-cs = <1>;
-
-	flash@0 {
-		compatible = "jedec,spi-nor";
-		reg = <0>;
-		spi-max-frequency = <50000000>;
-		m25p,fast-read;
-
-		partitions {
-			compatible = "fixed-partitions";
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			uboot: partition@0 {
-				label = "u-boot";
-				reg = <0x000000 0x020000>;
-				read-only;
-			};
-
-			partition@20000 {
-				label = "firmware";
-				reg = <0x020000 0xfd0000>;
-				compatible = "tplink,firmware";
-			};
-
-			partition@ff0000 {
-				label = "art";
-				reg = <0xff0000 0x010000>;
-				read-only;
-			};
-		};
-	};
-};
-
-&uart {
-	status = "okay";
-};
-
-&usb {
-	status = "okay";
-};
-
-&usb_phy {
-	status = "okay";
-};
diff --git a/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dtsi b/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dtsi
new file mode 100644
index 0000000000..c5770a7512
--- /dev/null
+++ b/target/linux/ath79/dts/ar9331_hak5_lan-turtle.dtsi
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar9331.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	aliases {
+		serial0 = &uart;
+	};
+
+	keys: keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&enable_gpio11>;
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <(-1)>;
+
+	gmac-config {
+		device = <&gmac>;
+
+		switch-phy-addr-swap = <1>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <1>;
+};
+
+&pinmux {
+	enable_gpio11: pinmux_enable_gpio11 {
+		pinctrl-single,bits = <0x0 0x0 0x4>;
+	};
+};
+
+&spi {
+	status = "okay";
+
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uboot: partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				label = "firmware";
+				reg = <0x020000 0xfd0000>;
+				compatible = "tplink,firmware";
+			};
+
+			partition@ff0000 {
+				label = "art";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
diff --git a/target/linux/ath79/dts/ar9331_hak5_packet-squirrel.dts b/target/linux/ath79/dts/ar9331_hak5_packet-squirrel.dts
new file mode 100644
index 0000000000..d19214d3f4
--- /dev/null
+++ b/target/linux/ath79/dts/ar9331_hak5_packet-squirrel.dts
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar9331_hak5_lan-turtle.dtsi"
+
+/ {
+	model = "Hak5 Packet Squirrel";
+	compatible = "hak5,packet-squirrel", "qca,ar9331";
+
+	aliases {
+		led-boot = &led_system_green;
+		led-failsafe = &led_system_green;
+		led-running = &led_system_green;
+		led-upgrade = &led_system_green;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_system_green: system-green {
+			label = "packet-squirrel:green:system";
+			gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+		};
+
+		system-blue {
+			label = "packet-squirrel:blue:system";
+			gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+		};
+
+		system-red {
+			label = "packet-squirrel:red:system";
+			gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&keys {
+	sw1 {
+		label = "sw1";
+		linux,code = <BTN_0>;
+		gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+		debounce-interval = <60>;
+	};
+
+	sw2 {
+		label = "sw2";
+		linux,code = <BTN_1>;
+		gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+		debounce-interval = <60>;
+	};
+
+	sw3 {
+		label = "sw3";
+		linux,code = <BTN_2>;
+		gpios = <&gpio 21 GPIO_ACTIVE_LOW>;
+		debounce-interval = <60>;
+	};
+
+	sw4 {
+		label = "sw4";
+		linux,code = <BTN_3>;
+		gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
+		debounce-interval = <60>;
+	};
+};