arm64: dts: add description for solidrun cn9130 som and clearfog boards

Add description for the SolidRun CN9130 SoM, and Clearfog Base / Pro
reference boards.

The SoM has been designed as a pin-compatible replacement for the older
Armada 388 based SoM. Therefore it supports the same boards and a
similar feature set.

Most notable upgrades:
- 4x Cortex-A72
- 10Gbps SFP
- Both eMMC and SD supported at the same time

The developer first supporting this product at SolidRun decided to use
different filenames for the DTBs: Armada 388 uses the full
"clearfog" string while cn9130 uses the abbreviation "cf".
This name is already hard-coded in pre-installed vendor u-boot and can
not be changed easily.

NOTICE IN CASE ANYBODY WANTS TO SELF-UPGRADE:
CN9130 SoM has a different footprint from Armada 388 SoM.
Components on the carrier board below the SoM may collide causing
damage, such as on Clearfog Base.

Signed-off-by: Josua Mayer <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>

Author: Josua-SR

arch/arm64/boot/dts/marvell/Makefile

@@ -28,3 +28,5 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-A.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-B.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += ac5x-rd-carrier-cn9131.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += ac5-98dx35xx-rd.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += cn9130-cf-base.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += cn9130-cf-pro.dtb

arch/arm64/boot/dts/marvell/cn9130-cf-base.dts

@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2024 Josua Mayer <[email protected]>
+ *
+ * DTS for SolidRun CN9130 Clearfog Base.
+ *
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+#include "cn9130.dtsi"
+#include "cn9130-sr-som.dtsi"
+#include "cn9130-cf.dtsi"
+
+/ {
+	model = "SolidRun CN9130 Clearfog Base";
+	compatible = "solidrun,cn9130-clearfog-base",
+		     "solidrun,cn9130-sr-som", "marvell,cn9130";
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&rear_button_pins>;
+		pinctrl-names = "default";
+
+		button-0 {
+			/* The rear SW3 button */
+			label = "Rear Button";
+			gpios = <&cp0_gpio1 31 GPIO_ACTIVE_LOW>;
+			linux,can-disable;
+			linux,code = <BTN_0>;
+		};
+	};
+
+	rfkill-m2-gnss {
+		compatible = "rfkill-gpio";
+		label = "m.2 GNSS";
+		radio-type = "gps";
+		/* rfkill-gpio inverts internally */
+		shutdown-gpios = <&expander0 9 GPIO_ACTIVE_HIGH>;
+	};
+
+	/* M.2 is B-keyed, so w-disable is for WWAN */
+	rfkill-m2-wwan {
+		compatible = "rfkill-gpio";
+		label = "m.2 WWAN";
+		radio-type = "wwan";
+		/* rfkill-gpio inverts internally */
+		shutdown-gpios = <&expander0 8 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+/* SRDS #3 - SGMII 1GE */
+&cp0_eth1 {
+	phy = <&phy1>;
+	phys = <&cp0_comphy3 1>;
+	phy-mode = "sgmii";
+	status = "okay";
+};
+
+&cp0_eth2_phy {
+	/*
+	 * Configure LEDs default behaviour:
+	 * - LED[0]: link/activity: On/blink (green)
+	 * - LED[1]: link is 100/1000Mbps: On (yellow)
+	 * - LED[2]: high impedance (floating)
+	 */
+	marvell,reg-init = <3 16 0xf000 0x0a61>;
+
+	leds {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		led@0 {
+			reg = <0>;
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WAN;
+			default-state = "keep";
+		};
+
+		led@1 {
+			reg = <1>;
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_WAN;
+			default-state = "keep";
+		};
+	};
+};
+
+&cp0_gpio1 {
+	sim-select-hog {
+		gpio-hog;
+		gpios = <27 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "sim-select";
+	};
+};
+
+&cp0_mdio {
+	phy1: ethernet-phy@1 {
+		reg = <1>;
+		/*
+		 * Configure LEDs default behaviour:
+		 * - LED[0]: link/activity: On/blink (green)
+		 * - LED[1]: link is 100/1000Mbps: On (yellow)
+		 * - LED[2]: high impedance (floating)
+		 *
+		 * Configure LEDs electrical polarity
+		 * - on-state: low
+		 * - off-state: high (not hi-z, to avoid residual glow)
+		 */
+		marvell,reg-init = <3 16 0xf000 0x0a61>,
+				   <3 17 0x003f 0x000a>;
+
+		leds {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			led@0 {
+				reg = <0>;
+				color = <LED_COLOR_ID_GREEN>;
+				function = LED_FUNCTION_LAN;
+				default-state = "keep";
+			};
+
+			led@1 {
+				reg = <1>;
+				color = <LED_COLOR_ID_YELLOW>;
+				function = LED_FUNCTION_LAN;
+				default-state = "keep";
+			};
+		};
+	};
+};
+
+&cp0_pinctrl {
+	pinctrl-0 = <&sim_select_pins>;
+	pintrl-names = "default";
+
+	rear_button_pins: cp0-rear-button-pins {
+		marvell,pins = "mpp31";
+		marvell,function = "gpio";
+	};
+
+	sim_select_pins: cp0-sim-select-pins {
+		marvell,pins = "mpp27";
+		marvell,function = "gpio";
+	};
+};
+
+/*
+ * SRDS #4 - USB 3.0 host on M.2 connector
+ * USB-2.0 Host on Type-A connector
+ */
+&cp0_usb3_1 {
+	phys = <&cp0_comphy4 1>, <&cp0_utmi1>;
+	phy-names = "comphy", "utmi";
+	dr_mode = "host";
+	status = "okay";
+};
+
+&expander0 {
+	m2-full-card-power-off-hog {
+		gpio-hog;
+		gpios = <2 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "m2-full-card-power-off";
+	};
+
+	m2-reset-hog {
+		gpio-hog;
+		gpios = <10 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "m2-reset";
+	};
+};