arm64: dts: marvell: Add device tree for uDPU board

This adds initial support for micro-DPU (uDPU) board which is based on
Armada-3720 SoC.  micro-DPU is the single-port FTTdp distribution point
unit made by Methode Electronics which offers complete modularity with
replaceable SFP modules both for uplink and downlink (G.hn over
twisted-pair, G.hn over coax, 1G and 2.5G Ethernet over Cat-5e cable).

On-board features:
- 512 MiB DDR3
- 2 x 2.5G SFP via HSGMII SERDES interface to the A3720 SoC
- USB 2.0 Type-C connector
- 4GB eMMC
- ETSI TS 101548 reverse powering via twisted pair (RJ45) or coax (F Type)

Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Luis Torres <luis.torres@methode.com>
Cc: Scott Roberts <scott.roberts@telus.com>
Cc: Paul Arola <paul.arola@telus.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Vladimir Vid <vladimir.vid@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

2 files changed, 163 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile
index 2eff1f927471..caed4334f27d 100644
--- a/arch/arm64/boot/dts/marvell/Makefile
+++ b/arch/arm64/boot/dts/marvell/Makefile
@@ -2,6 +2,7 @@
 # Mvebu SoC Family
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-espressobin.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-uDPU.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-7040-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-8040-clearfog-gt-8k.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-8040-db.dtb
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
new file mode 100644
index 000000000000..bd4aab6092e0
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device tree for the uDPU board.
+ * Based on Marvell Armada 3720 development board (DB-88F3720-DDR3)
+ * Copyright (C) 2016 Marvell
+ * Copyright (C) 2019 Methode Electronics
+ * Copyright (C) 2019 Telus
+ *
+ * Vladimir Vid <vladimir.vid@sartura.hr>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "armada-372x.dtsi"
+
+/ {
+	model = "Methode uDPU Board";
+	compatible = "methode,udpu", "marvell,armada3720";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
+	};
+
+	leds {
+		pinctrl-names = "default";
+		compatible = "gpio-leds";
+
+		power1 {
+			label = "udpu:green:power";
+			gpios = <&gpionb 11 GPIO_ACTIVE_LOW>;
+		};
+
+		power2 {
+			label = "udpu:red:power";
+			gpios = <&gpionb 12 GPIO_ACTIVE_LOW>;
+		};
+
+		network1 {
+			label = "udpu:green:network";
+			gpios = <&gpionb 13 GPIO_ACTIVE_LOW>;
+		};
+
+		network2 {
+			label = "udpu:red:network";
+			gpios = <&gpionb 14 GPIO_ACTIVE_LOW>;
+		};
+
+		alarm1 {
+			label = "udpu:green:alarm";
+			gpios = <&gpionb 15 GPIO_ACTIVE_LOW>;
+		};
+
+		alarm2 {
+			label = "udpu:red:alarm";
+			gpios = <&gpionb 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	sfp_eth0: sfp-eth0 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c0>;
+		los-gpio = <&gpiosb 2 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpio = <&gpiosb 3 GPIO_ACTIVE_LOW>;
+		tx-disable-gpio = <&gpiosb 4 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpio = <&gpiosb 5 GPIO_ACTIVE_HIGH>;
+	};
+
+	sfp_eth1: sfp-eth1 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c1>;
+		los-gpio = <&gpiosb 7 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpio = <&gpiosb 8 GPIO_ACTIVE_LOW>;
+		tx-disable-gpio = <&gpiosb 9 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpio = <&gpiosb 10 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&sdhci0 {
+	status = "okay";
+	bus-width = <8>;
+	mmc-ddr-1_8v;
+	mmc-hs400-1_8v;
+	marvell,pad-type = "fixed-1-8v";
+	non-removable;
+	no-sd;
+	no-sdio;
+};
+
+&spi0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_quad_pins>;
+
+	m25p80@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <54000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			/* only bootloader is located on the SPI */
+			partition@0 {
+				label = "uboot";
+				reg = <0 0x400000>;
+			};
+		};
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+};
+
+&i2c1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+
+	lm75@48 {
+		status = "okay";
+		compatible = "lm75";
+		reg = <0x48>;
+	};
+
+	lm75@49 {
+		status = "okay";
+		compatible = "lm75";
+		reg = <0x49>;
+	};
+};
+
+&eth0 {
+	phy-mode = "sgmii";
+	status = "okay";
+	managed = "in-band-status";
+	sfp = <&sfp_eth0>;
+};
+
+&eth1 {
+	phy-mode = "sgmii";
+	status = "okay";
+	managed = "in-band-status";
+	sfp = <&sfp_eth1>;
+};
+
+&usb3 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};