Commit 518272af authored by Leonard Göhrs's avatar Leonard Göhrs Committed by Alexandre Torgue
Browse files

ARM: dts: stm32: lxa-tac: add Linux Automation GmbH TAC 

The Linux Automation Test Automation Controller (LXA TAC)[1] is an embedded
software development tool built around the Octavo Systems OSD32MP15x SiP.

The device contains an eMMC for storage, a DSA-capable on board ethernet
switch with two external ports, dual CAN busses, a power switch to turn
a device under test on or off and some other I/O.

As of now there are two STM32MP157 based hardware generations (Gen 1 and
Gen 2) that have most of their hardware config in common.
In the future there will also be a STM32MP153 based hardware generation.

[1]: https://www.linux-automation.com/en/products/lxa-tac.html



Signed-off-by: default avatarLeonard Göhrs <l.goehrs@pengutronix.de>
Signed-off-by: default avatarAlexandre Torgue <alexandre.torgue@foss.st.com>
parent e5894408

arch/arm/boot/dts/st/Makefile

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@@ -56,6 +56,8 @@ dtb-$(CONFIG_ARCH_STM32) += \ 
	stm32mp157c-ev1.dtb \

	stm32mp157c-ev1-scmi.dtb \

	stm32mp157c-lxa-mc1.dtb \

	stm32mp157c-lxa-tac-gen1.dtb \

	stm32mp157c-lxa-tac-gen2.dtb \

	stm32mp157c-odyssey.dtb \

	stm32mp157c-phycore-stm32mp1-3.dtb

dtb-$(CONFIG_ARCH_U8500) += \

arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen1.dts

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// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)

/*

 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved

 * Copyright (C) 2021 Rouven Czerwinski, Pengutronix

 * Copyright (C) 2023 Leonard Göhrs, Pengutronix

 */



/dts-v1/;



#include "stm32mp157.dtsi"

#include "stm32mp15xc-lxa-tac.dtsi"



/ {

	model = "Linux Automation Test Automation Controller (TAC) Gen 1";

	compatible = "lxa,stm32mp157c-tac-gen1", "oct,stm32mp15xx-osd32", "st,stm32mp157";



	backlight: backlight {

		compatible = "pwm-backlight";

		power-supply = <&v3v3>;



		brightness-levels = <0 31 63 95 127 159 191 223 255>;

		default-brightness-level = <7>;

		pwms = <&backlight_pwm 1 1000000 0>;

	};



	reg_iobus_12v: regulator-iobus-12v {

		compatible = "regulator-fixed";

		vin-supply = <&reg_12v>;



		gpio = <&gpioh 13 GPIO_ACTIVE_HIGH>;

		enable-active-high;

		regulator-max-microvolt = <12000000>;

		regulator-min-microvolt = <12000000>;

		regulator-name = "12V_IOBUS";

	};

};



&gpioa {

	gpio-line-names = "", "", "STACK_CS2", "", "STACK_CS3", /*  0 */

	"ETH_GPIO1", "ETH_INT", "", "", "",                     /*  5 */

	"", "", "", "BOOTROM_LED", "ETH_LAB_LEDRP",             /* 10 */

	"";                                                     /* 15 */

};



&gpioc {

	gpio-line-names = "", "STACK_CS1", "", "", "", /*  0 */

	"", "", "", "", "",                            /*  5 */

	"", "";                                        /* 10 */

};



&gpu {

	status = "disabled";

};



&i2c1 {

	powerboard_gpio: gpio@24 {

		compatible = "nxp,pca9570";

		reg = <0x24>;



		#gpio-cells = <2>;

		gpio-controller;

		gpio-line-names = "DUT_PWR_EN", "DUT_PWR_DISCH", "DUT_PWR_ADCRST", "";

	};

};



&spi2 {

	adc@0 {

		compatible = "ti,lmp92064";

		reg = <0>;

		spi-max-frequency = <5000000>;

		vdd-supply = <&reg_pb_3v3>;

		vdig-supply = <&reg_pb_3v3>;

		reset-gpios = <&powerboard_gpio 2 GPIO_ACTIVE_HIGH>;



		shunt-resistor-micro-ohms = <15000>;

	};

};



&timers1 {

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";



	backlight_pwm: pwm {

		pinctrl-names = "default", "sleep";

		pinctrl-0 = <&pwm1_pins_c>;

		pinctrl-1 = <&pwm1_sleep_pins_c>;



		status = "okay";

	};

};

arch/arm/boot/dts/st/stm32mp157c-lxa-tac-gen2.dts

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// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)

/*

 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved

 * Copyright (C) 2021 Rouven Czerwinski, Pengutronix

 * Copyright (C) 2023 Leonard Göhrs, Pengutronix

 */



/dts-v1/;



#include "stm32mp157.dtsi"

#include "stm32mp15xc-lxa-tac.dtsi"



/ {

	model = "Linux Automation Test Automation Controller (TAC) Gen 2";

	compatible = "lxa,stm32mp157c-tac-gen2", "oct,stm32mp15xx-osd32", "st,stm32mp157";



	backlight: backlight {

		compatible = "pwm-backlight";

		power-supply = <&v3v3>;



		brightness-levels = <0 31 63 95 127 159 191 223 255>;

		default-brightness-level = <7>;

		pwms = <&led_pwm 3 1000000 0>;

	};



	reg_iobus_12v: regulator-iobus-12v {

		compatible = "regulator-fixed";

		vin-supply = <&reg_12v>;

		gpio = <&gpioh 13 GPIO_ACTIVE_LOW>;

		regulator-max-microvolt = <12000000>;

		regulator-min-microvolt = <12000000>;

		regulator-name = "12V_IOBUS";

	};



	led-controller-1 {

		compatible = "pwm-leds-multicolor";



		multi-led {

			color = <LED_COLOR_ID_RGB>;

			function = LED_FUNCTION_STATUS;

			max-brightness = <65535>;



			led-red {

				active-low;

				color = <LED_COLOR_ID_RED>;

				pwms = <&led_pwm 0 1000000 0>;

			};



			led-green {

				active-low;

				color = <LED_COLOR_ID_GREEN>;

				pwms = <&led_pwm 2 1000000 0>;

			};



			led-blue {

				active-low;

				color = <LED_COLOR_ID_BLUE>;

				pwms = <&led_pwm 1 1000000 0>;

			};

		};

	};



	led-controller-2 {

		compatible = "gpio-leds";



		led-5 {

			label = "tac:green:iobus";

			gpios = <&gpiog 1 GPIO_ACTIVE_HIGH>;

		};



		led-6 {

			label = "tac:green:can";

			gpios = <&gpiof 3 GPIO_ACTIVE_HIGH>;

		};



		led-7 {

			label = "tac:green:out0";

			gpios = <&gpiob 8 GPIO_ACTIVE_HIGH>;

		};



		led-8 {

			label = "tac:green:out1";

			gpios = <&gpiog 3 GPIO_ACTIVE_HIGH>;

		};



		led-9 {

			label = "tac:green:uarttx";

			gpios = <&gpiod 3 GPIO_ACTIVE_HIGH>;

		};



		led-10 {

			label = "tac:green:uartrx";

			gpios = <&gpiof 6 GPIO_ACTIVE_HIGH>;

		};



		led-11 {

			label = "tac:green:usbh1";

			gpios = <&gpioc 8 GPIO_ACTIVE_HIGH>;

		};



		led-12 {

			label = "tac:green:usbh2";

			gpios = <&gpiod 6 GPIO_ACTIVE_HIGH>;

		};



		led-13 {

			label = "tac:green:usbh3";

			gpios = <&gpiob 9 GPIO_ACTIVE_HIGH>;

		};



		led-14 {

			label = "tac:green:usbg";

			gpios = <&gpiod 14 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "usb-gadget";

		};



		led-15 {

			label = "tac:green:dutpwr";

			gpios = <&gpioa 15 GPIO_ACTIVE_HIGH>;

		};

	};

};



&gpioa {

	gpio-line-names = "", "", "DUT_PWR_EN", "", "STACK_CS3", /*  0 */

	"ETH_GPIO1", "ETH_INT", "", "", "",                      /*  5 */

	"", "", "", "BOOTROM_LED", "ETH_LAB_LEDRP",              /* 10 */

	"";                                                      /* 15 */

};



&gpioc {

	gpio-line-names = "", "DUT_PWR_DISCH", "", "", "", /*  0 */

	"", "", "", "", "",                                /*  5 */

	"", "";                                            /* 10 */

};



&gpu {

	status = "disabled";

};



&m_can2 {

	termination-gpios = <&gpioe 4 GPIO_ACTIVE_HIGH>;

	termination-ohms = <120>;

};



&spi2 {

	adc@0 {

		compatible = "ti,lmp92064";

		reg = <0>;



		reset-gpios = <&gpioa 4 GPIO_ACTIVE_HIGH>;

		shunt-resistor-micro-ohms = <15000>;

		spi-max-frequency = <5000000>;

		vdd-supply = <&reg_pb_3v3>;

		vdig-supply = <&reg_pb_3v3>;

	};

};



&timers8 {

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";



	led_pwm: pwm {

		pinctrl-names = "default", "sleep";

		pinctrl-0 = <&pwm8_pins_b>;

		pinctrl-1 = <&pwm8_sleep_pins_b>;

		status = "okay";

	};

};

arch/arm/boot/dts/st/stm32mp15xc-lxa-tac.dtsi

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// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)

/*

 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved

 * Copyright (C) 2021 Rouven Czerwinski, Pengutronix

 * Copyright (C) 2023 Leonard Göhrs, Pengutronix

 */



#include "stm32mp15xc.dtsi"

#include "stm32mp15xx-osd32.dtsi"

#include "stm32mp15xxac-pinctrl.dtsi"



#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/input/input.h>

#include <dt-bindings/leds/common.h>

#include <dt-bindings/pwm/pwm.h>



/ {

	aliases {

		ethernet0 = &ethernet0;

		ethernet1 = &port_uplink;

		ethernet2 = &port_dut;

		mmc1 = &sdmmc2;

		serial0 = &uart4;

		serial1 = &usart3;

	};



	chosen {

		stdout-path = &uart4;

	};



	led-controller-0 {

		compatible = "gpio-leds";



		led-0 {

			label = "tac:green:user1";

			gpios = <&gpiof 10 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "heartbeat";

		};



		led-1 {

			label = "tac:green:user2";

			gpios = <&gpiog 7 GPIO_ACTIVE_HIGH>;

		};



		led-2 {

			label = "tac:green:statusdut";

			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;

		};



		/* led-3 and led-4 are internally connected antiparallel to one

		 * another inside the ethernet jack like this:

		 * GPIOA14 ---+---|led-3|>--+--- GPIOD15

		 *            +--<|led-4|---+

		 * E.g. only one of the LEDs can be illuminated at a time while

		 * the other output must be driven low.

		 * This should likely be implemented using a multi color LED

		 * driver for antiparallel LEDs.

		 */

		led-3 {

			label = "tac:green:statuslab";

			gpios = <&gpioa 14 GPIO_ACTIVE_HIGH>;

		};



		led-4 {

			label = "tac:orange:statuslab";

			gpios = <&gpiod 15 GPIO_ACTIVE_HIGH>;

		};

	};



	gpio-keys {

		compatible = "gpio-keys";



		button-lower {

			label = "USER_BTN2";

			linux,code = <KEY_ESC>;

			gpios = <&gpioe 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

		};



		button-upper {

			label = "USER_BTN";

			linux,code = <KEY_HOME>;

			gpios = <&gpioi 11 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

		};

	};



	/* supplied by either barrel connector or PoE */

	reg_12v: regulator-12v {

		compatible = "regulator-fixed";

		regulator-name = "12V";

		regulator-min-microvolt = <12000000>;

		regulator-max-microvolt = <12000000>;

		regulator-always-on;

	};



	reg_5v: regulator-5v {

		compatible = "regulator-fixed";

		regulator-name = "5V";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

		vin-supply = <&reg_12v>;

	};



	reg_1v2: regulator-1v2 {

		compatible = "regulator-fixed";

		regulator-name = "1V2";

		regulator-min-microvolt = <1200000>;

		regulator-max-microvolt = <1200000>;

		regulator-always-on;

		vin-supply = <&reg_5v>;

	};



	reg_pb_5v: regulator-pb-5v {

		compatible = "regulator-fixed";

		regulator-name = "5V_POWERBOARD";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

		vin-supply = <&reg_5v>;

	};



	reg_pb_3v3: regulator-pb-3v3 {

		compatible = "regulator-fixed";

		regulator-name = "3V3_POWERBOARD";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-always-on;

		vin-supply = <&reg_pb_5v>;

	};



	output-iobus-12v {

		compatible = "regulator-output";

		vout-supply = <&reg_iobus_12v>;

	};



	output-vuart {

		compatible = "regulator-output";

		vout-supply = <&v3v3_hdmi>;

	};

};



baseboard_eeprom: &sip_eeprom {

};



&adc {

	pinctrl-names = "default";

	pinctrl-0 = <&adc1_ain_pins_a>;

	vdd-supply = <&vdd>;

	vdda-supply = <&vdda>;

	vref-supply = <&vrefbuf>;

	status = "okay";



	adc1: adc@0 {

		st,adc-channels = <0 1 2 5 9 10 13 15>;

		st,min-sample-time-nsecs = <5000>;

		#address-cells = <1>;

		#size-cells = <0>;

		status = "okay";



		channel@0 {

			reg = <0>;

			label = "HOST_2_CURR_FB";

		};



		channel@1 {

			reg = <1>;

			label = "HOST_3_CURR_FB";

		};



		channel@2 {

			reg = <2>;

			label = "OUT_0_FB";

		};



		channel@5 {

			reg = <5>;

			label = "IOBUS_CURR_FB";

		};



		channel@9 {

			reg = <9>;

			label = "IOBUS_VOLT_FB";

		};



		channel@10 {

			reg = <10>;

			label = "OUT_1_FB";

		};



		channel@13 {

			reg = <13>;

			label = "HOST_CURR_FB";

		};



		channel@15 {

			reg = <15>;

			label = "HOST_1_CURR_FB";

		};

	};



	adc2: adc@100 {

		st,adc-channels = <12>;

		st,min-sample-time-nsecs = <500000>;

		#address-cells = <1>;

		#size-cells = <0>;

		status = "okay";



		channel@12 {

			reg = <12>;

			label = "TEMP_INTERNAL";

		};

	};

};



&crc1 {

	status = "okay";

};



&cryp1 {

	status = "okay";

};



&dts {

	status = "okay";

};



&ethernet0 {

	assigned-clocks = <&rcc ETHCK_K>, <&rcc PLL4_P>;

	assigned-clock-parents = <&rcc PLL4_P>;

	assigned-clock-rates = <125000000>; /* Clock PLL4 to 750Mhz in ATF */



	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&ethernet0_rgmii_pins_e>;

	pinctrl-1 = <&ethernet0_rgmii_sleep_pins_e>;



	st,eth-clk-sel;

	phy-mode = "rgmii-id";



	status = "okay";



	fixed-link {

		speed = <1000>;

		full-duplex;

	};

};



&ethernet0_rgmii_pins_e {

	pins1 {

		/* Reduce EMI emission by reducing RGMII drive strength */

		slew-rate = <1>;

	};

};



&gpiob {

	gpio-line-names = "", "", "", "", "", /*  0 */

	"", "USB_RESET", "", "", "",          /*  5 */

	"", "", "", "", "",                   /* 10 */

	"";                                   /* 15 */

};



&gpiod {

	gpio-line-names = "", "", "", "", "TP38", /*  0 */

	"TP39", "", "", "TP41", "TP42",           /*  5 */

	"OLED_DC", "", "", "ETH_CS", "",          /* 10 */

	"ETH_LAB_LEDRN";                          /* 15 */

};



&gpioe {

	gpio-line-names = "TP35", "", "", "", "CAN_1_120R", /*  0 */

	"", "", "USER_BTN2", "TP48", "UART_TX_EN",          /*  5 */

	"UART_RX_EN", "TP24", "", "TP25", "TP26",           /* 10 */

	"TP27";                                             /* 15 */

};



&gpiof {

	gpio-line-names = "TP36", "TP37", "", "", "OLED_CS", /*  0 */

	"", "", "", "", "",                                  /*  5 */

	"USER_LED1", "", "STACK_CS0", "", "",                /* 10 */

	"";                                                  /* 15 */

};



&gpiog {

	gpio-line-names = "ETH_RESET", "", "", "", "",               /*  0 */

	"IOBUS_FLT_FB", "", "USER_LED2", "ETH1_PPS_A", "CAN_0_120R", /*  5 */

	"TP49", "", "", "", "",                                      /* 10 */

	"";                                                          /* 15 */

};



&gpioh {

	gpio-line-names = "", "", "OUT_1", "OUT_0", "OLED_RESET", /*  0 */

	"", "", "", "", "",                                       /*  5 */

	"ETH1_PPS_B", "ETH_GPIO2", "", "IOBUS_PWR_EN", "",        /* 10 */

	"TP33";                                                   /* 15 */

};



&gpioi {

	gpio-line-names = "TIM_RTS", "", "", "", "DEVICE_DATA_EN", /*  0 */

	"", "", "", "ETH_WOL", "TP43",                             /*  5 */

	"", "USER_BTN";                                            /* 10 */

};



&gpioz {

	gpio-line-names = "HWID0", "HWID1", "HWID2", "HWID3", "", /*  0 */

	"", "HWID4", "HWID5";                                     /*  5 */

};



&hash1 {

	status = "okay";

};



&i2c1 {

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&i2c1_pins_b>;

	pinctrl-1 = <&i2c1_sleep_pins_b>;

	status = "okay";



	powerboard_eeprom: eeprom@50 {

		compatible = "atmel,24c02";

		reg = <0x50>;

		vcc-supply = <&v3v3>;

	};



	temperature-sensor@48 {

		compatible = "national,lm75a";

		reg = <0x48>;

		status = "disabled";

	};

};



&i2c5 {

	/delete-property/dmas;

	/delete-property/dma-names;



	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&i2c5_pins_b>;

	pinctrl-1 = <&i2c5_sleep_pins_b>;



	status = "okay";



	usbhub: usbhub@2c {

		compatible ="microchip,usb2514b";

		reg = <0x2c>;

		vdd-supply = <&v3v3>;

		reset-gpios = <&gpiob 6 GPIO_ACTIVE_LOW>;

	};

};



&iwdg2 {

	timeout-sec = <8>;

	status = "okay";

};



&m_can1 {

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&m_can1_pins_b>;

	pinctrl-1 = <&m_can1_sleep_pins_b>;

	status = "okay";

};



&m_can2 {

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&m_can2_pins_a>;

	pinctrl-1 = <&m_can2_sleep_pins_a>;

	status = "okay";

};



&pmic {

	regulators {

		buck1-supply = <&reg_5v>;	/* VIN */

		buck2-supply = <&reg_5v>;	/* VIN */

		buck3-supply = <&reg_5v>;	/* VIN */

		buck4-supply = <&reg_5v>;	/* VIN */

		ldo2-supply = <&reg_5v>;	/* PMIC_LDO25IN */

		ldo4-supply = <&reg_5v>;	/* VIN */

		ldo5-supply = <&reg_5v>;	/* PMIC_LDO25IN */

		vref_ddr-supply = <&reg_5v>;	/* VIN */

		boost-supply = <&reg_5v>;	/* PMIC_BSTIN */

		pwr_sw2-supply = <&bst_out>;	/* PMIC_SWIN */

	};

};



&pwr_regulators {

	vdd-supply = <&vdd>;

	vdd_3v3_usbfs-supply = <&vdd_usb>;

};



&rtc {

	status = "okay";

};



&sdmmc2 {

	pinctrl-names = "default", "opendrain", "sleep";

	pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_b>;

	pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_b>;

	pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_b>;

	vmmc-supply = <&v3v3>;



	bus-width = <8>;

	mmc-ddr-3_3v;

	no-1-8-v;

	non-removable;

	no-sd;

	no-sdio;

	st,neg-edge;



	status = "okay";

};



&spi2 {

	pinctrl-names = "default";

	pinctrl-0 = <&spi2_pins_c>;

	cs-gpios = <&gpiof 12 GPIO_ACTIVE_LOW>;

	status = "okay";

};



&spi4 {

	pinctrl-names = "default";

	pinctrl-0 = <&spi4_pins_a>;

	cs-gpios = <&gpiof 4 GPIO_ACTIVE_LOW>;

	status = "okay";



	lcd: display@0 {

		compatible = "shineworld,lh133k", "panel-mipi-dbi-spi";

		reg = <0>;

		power-supply = <&v3v3>;

		io-supply = <&v3v3>;

		backlight = <&backlight>;

		dc-gpios = <&gpiod 10 GPIO_ACTIVE_HIGH>;

		reset-gpios = <&gpioh 4 GPIO_ACTIVE_HIGH>;

		spi-3wire;

		spi-max-frequency = <32000000>;



		width-mm = <23>;

		height-mm = <23>;

		rotation = <180>;



		panel-timing {

			hactive = <240>;

			vactive = <240>;

			hback-porch = <0>;

			vback-porch = <0>;



			clock-frequency = <0>;

			hfront-porch = <0>;

			hsync-len = <0>;

			vfront-porch = <0>;

			vsync-len = <0>;

		};

	};

};



&spi5 {

	pinctrl-names = "default";

	pinctrl-0 = <&spi5_pins_a>;



	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	cs-gpios = <&gpiod 13 GPIO_ACTIVE_LOW>;



	status = "okay";



	switch: switch@0 {

		compatible = "microchip,ksz9563";

		reg = <0>;



		reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>;

		spi-max-frequency = <44000000>;



		interrupt-parent = <&gpioa>;

		interrupts = <6 IRQ_TYPE_EDGE_RISING>;



		ports {

			#address-cells = <1>;

			#size-cells = <0>;

			port_dut: port@0 {

				reg = <0>;

				label = "dut";

			};



			port_uplink: port@1 {

				reg = <1>;

				label = "uplink";

			};



			port_cpu: port@2 {

				reg = <2>;

				label = "cpu";



				ethernet = <&ethernet0>;



				phy-mode = "rgmii-id";

				rx-internal-delay-ps = <2000>;

				tx-internal-delay-ps = <2000>;



				fixed-link {

					speed = <1000>;

					full-duplex;

				};

			};

		};

	};

};



&timers2 {

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";



	timer@1 {

		status = "okay";

	};

};



&timers3 {

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";



	timer@2 {

		status = "okay";

	};

};



&timers4 {

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";



	timer@3 {

		status = "okay";

	};

};



&uart4 {

	label = "debug";



	pinctrl-names = "default";

	pinctrl-0 = <&uart4_pins_a>;



	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";

};



&usart3 {

	label = "dut";

	uart-has-rtscts;



	pinctrl-names = "default";

	pinctrl-0 = <&usart3_pins_f>;



	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;



	status = "okay";

};



&usbh_ehci {

	phys = <&usbphyc_port0>;

	phy-names = "usb";



	status = "okay";

};



&usbotg_hs {

	phys = <&usbphyc_port1 0>;

	phy-names = "usb2-phy";



	vusb_d-supply = <&vdd_usb>;

	vusb_a-supply = <&reg18>;



	dr_mode = "peripheral";



	status = "okay";

};



&usbphyc {

	status = "okay";

};



&usbphyc_port0 {

	phy-supply = <&vdd_usb>;

};



&usbphyc_port1 {

	phy-supply = <&vdd_usb>;

};



&v3v3_hdmi {

	/delete-property/regulator-always-on;

};



&vrefbuf {

	regulator-min-microvolt = <2500000>;

	regulator-max-microvolt = <2500000>;

	vdda-supply = <&vdda>;



	status = "okay";

};