[PATCH v3] ARM: dts: Introduce the NXP LS1021A-TSN board

[Vladimir Oltean]

The LS1021A-TSN is a development board built by VVDN/Argonboards in
partnership with NXP.

It features the LS1021A SoC and the first-generation SJA1105T Ethernet
switch for prototyping implementations of a subset of IEEE 802.1 TSN
standards.

It has two regular Ethernet ports and four switched, TSN-capable ports.

It also features:
- One Arduino header
- One expansion header
- Two USB 3.0 ports
- One mini PCIe slot
- One SATA interface
- Accelerometer, gyroscope, temperature sensors

Signed-off-by: Vladimir Oltean <olteanv@xxxxxxxxx>
---
Changes from v2:
- Sorted nodes alphabetically
- Renamed SAI2 codec node into audio-codec

v2 patch available at:
https://lkml.org/lkml/2019/5/29/998

Changes from v1:
- Applied Shawn's feedback
- Introduced QSPI flash node

v1 patch available at:
https://patchwork.kernel.org/patch/10930451/

 arch/arm/boot/dts/Makefile        |   1 +
 arch/arm/boot/dts/ls1021a-tsn.dts | 289 ++++++++++++++++++++++++++++++
 2 files changed, 290 insertions(+)
 create mode 100644 arch/arm/boot/dts/ls1021a-tsn.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index dab2914fa293..a4eb4ca5e148 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -602,6 +602,7 @@ dtb-$(CONFIG_SOC_IMX7ULP) += \
 dtb-$(CONFIG_SOC_LS1021A) += \
 	ls1021a-moxa-uc-8410a.dtb \
 	ls1021a-qds.dtb \
+	ls1021a-tsn.dtb \
 	ls1021a-twr.dtb
 dtb-$(CONFIG_SOC_VF610) += \
 	vf500-colibri-eval-v3.dtb \
diff --git a/arch/arm/boot/dts/ls1021a-tsn.dts b/arch/arm/boot/dts/ls1021a-tsn.dts
new file mode 100644
index 000000000000..ef4a0b1e4d47
--- /dev/null
+++ b/arch/arm/boot/dts/ls1021a-tsn.dts
@@ -0,0 +1,289 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2016-2018 NXP Semiconductors
+ * Copyright 2019 Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+
+/dts-v1/;
+#include "ls1021a.dtsi"
+
+/ {
+	model = "NXP LS1021A-TSN Board";
+
+	sys_mclk: clock-mclk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24576000>;
+	};
+
+	reg_vdda_codec: regulator-3V3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3P3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	reg_vddio_codec: regulator-2V5 {
+		compatible = "regulator-fixed";
+		regulator-name = "2P5V";
+		regulator-min-microvolt = <2500000>;
+		regulator-max-microvolt = <2500000>;
+		regulator-always-on;
+	};
+};
+
+&dspi0 {
+	bus-num = <0>;
+	status = "okay";
+
+	/* ADG704BRMZ 1:4 SPI mux/demux */
+	sja1105: ethernet-switch@1 {
+		reg = <0x1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nxp,sja1105t";
+		/* 12 MHz */
+		spi-max-frequency = <12000000>;
+		/* Sample data on trailing clock edge */
+		spi-cpha;
+		/* SPI controller settings for SJA1105 timing requirements */
+		fsl,spi-cs-sck-delay = <1000>;
+		fsl,spi-sck-cs-delay = <1000>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				/* ETH5 written on chassis */
+				label = "swp5";
+				phy-handle = <&rgmii_phy6>;
+				phy-mode = "rgmii-id";
+				reg = <0>;
+			};
+
+			port@1 {
+				/* ETH2 written on chassis */
+				label = "swp2";
+				phy-handle = <&rgmii_phy3>;
+				phy-mode = "rgmii-id";
+				reg = <1>;
+			};
+
+			port@2 {
+				/* ETH3 written on chassis */
+				label = "swp3";
+				phy-handle = <&rgmii_phy4>;
+				phy-mode = "rgmii-id";
+				reg = <2>;
+			};
+
+			port@3 {
+				/* ETH4 written on chassis */
+				label = "swp4";
+				phy-handle = <&rgmii_phy5>;
+				phy-mode = "rgmii-id";
+				reg = <3>;
+			};
+
+			port@4 {
+				/* Internal port connected to eth2 */
+				ethernet = <&enet2>;
+				phy-mode = "rgmii";
+				reg = <4>;
+
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+				};
+			};
+		};
+	};
+};
+
+&i2c0 {
+	status = "okay";
+
+	/* 3 axis accelerometer */
+	accelerometer@1e {
+		compatible = "fsl,fxls8471";
+		position = <0>;
+		reg = <0x1e>;
+	};
+
+	/* Audio codec (SAI2) */
+	audio-codec@2a {
+		compatible = "fsl,sgtl5000";
+		VDDIO-supply = <&reg_vddio_codec>;
+		VDDA-supply = <&reg_vdda_codec>;
+		#sound-dai-cells = <0>;
+		clocks = <&sys_mclk>;
+		reg = <0x2a>;
+	};
+
+	/* Current sensing circuit for 1V VDDCORE PMIC rail */
+	current-sensor@44 {
+		compatible = "ti,ina220";
+		shunt-resistor = <1000>;
+		reg = <0x44>;
+	};
+
+	/* Current sensing circuit for 12V VCC rail */
+	current-sensor@45 {
+		compatible = "ti,ina220";
+		shunt-resistor = <1000>;
+		reg = <0x45>;
+	};
+
+	/* Thermal monitor - case */
+	temperature-sensor@48 {
+		compatible = "national,lm75";
+		reg = <0x48>;
+	};
+
+	/* Thermal monitor - chip */
+	temperature-sensor@4c {
+		compatible = "ti,tmp451";
+		reg = <0x4c>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c32";
+		reg = <0x51>;
+	};
+
+	/* Unsupported devices:
+	 * - FXAS21002C Gyroscope at 0x20
+	 * - TI ADS7924 4-channel ADC at 0x49
+	 */
+};
+
+&ifc {
+	status = "disabled";
+};
+
+&enet0 {
+	tbi-handle = <&tbi0>;
+	phy-handle = <&sgmii_phy2>;
+	phy-mode = "sgmii";
+	status = "okay";
+};
+
+&enet1 {
+	tbi-handle = <&tbi1>;
+	phy-handle = <&sgmii_phy1>;
+	phy-mode = "sgmii";
+	status = "okay";
+};
+
+/* RGMII delays added via PCB traces */
+&enet2 {
+	phy-mode = "rgmii";
+	status = "okay";
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&esdhc {
+	status = "okay";
+};
+
+&lpuart0 {
+	status = "okay";
+};
+
+&lpuart3 {
+	status = "okay";
+};
+
+&mdio0 {
+	/* AR8031 */
+	sgmii_phy1: ethernet-phy@1 {
+		reg = <0x1>;
+	};
+
+	/* AR8031 */
+	sgmii_phy2: ethernet-phy@2 {
+		reg = <0x2>;
+	};
+
+	/* BCM5464 quad PHY */
+	rgmii_phy3: ethernet-phy@3 {
+		reg = <0x3>;
+	};
+
+	rgmii_phy4: ethernet-phy@4 {
+		reg = <0x4>;
+	};
+
+	rgmii_phy5: ethernet-phy@5 {
+		reg = <0x5>;
+	};
+
+	rgmii_phy6: ethernet-phy@6 {
+		reg = <0x6>;
+	};
+
+	/* SGMII PCS for enet0 */
+	tbi0: tbi-phy@1f {
+		reg = <0x1f>;
+		device_type = "tbi-phy";
+	};
+};
+
+&mdio1 {
+	/* SGMII PCS for enet1 */
+	tbi1: tbi-phy@1f {
+		reg = <0x1f>;
+		device_type = "tbi-phy";
+	};
+};
+
+&qspi {
+	status = "okay";
+
+	flash@0 {
+		/* Rev. A uses 64MB flash, Rev. B & C use 32MB flash */
+		compatible = "jedec,spi-nor", "s25fl256s1", "s25fl512s";
+		spi-max-frequency = <20000000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "RCW";
+				reg = <0x0 0x40000>;
+			};
+
+			partition@40000 {
+				label = "U-Boot";
+				reg = <0x40000 0x300000>;
+			};
+
+			partition@340000 {
+				label = "U-Boot Env";
+				reg = <0x340000 0x100000>;
+			};
+		};
+	};
+};
+
+&sai2 {
+	status = "okay";
+};
+
+&sata {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.17.1