Commit fde180f0 authored by Marek Vasut's avatar Marek Vasut Committed by Alexandre Torgue
Browse files

ARM: dts: stm32: Add DHSOM based DRC02 board 



Add DT for DH DRC02 unit, which is a universal controller device.
The system has two ethernet ports, two CANs, RS485 and RS232, USB,
capacitive buttons and an OLED display.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: default avatarAlexandre Torgue <alexandre.torgue@st.com>
parent b0a07f60

arch/arm/boot/dts/Makefile

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@@ -1047,6 +1047,7 @@ dtb-$(CONFIG_ARCH_STM32) += \ 
	stm32746g-eval.dtb \

	stm32h743i-eval.dtb \

	stm32h743i-disco.dtb \

	stm32mp153c-dhcom-drc02.dtb \

	stm32mp157a-avenger96.dtb \

	stm32mp157a-dhcor-avenger96.dtb \

	stm32mp157a-dk1.dtb \

arch/arm/boot/dts/stm32mp153c-dhcom-drc02.dts

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+35 −0
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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause

/*

 * Copyright (C) 2020 Marek Vasut <marex@denx.de>

 *

 * DHCOM STM32MP1 variant:

 * DHCM-STM32MP153C-C065-R102-F0819-SPI-E2-CAN2-RTC-I-01D2

 * DHCOM PCB number: 587-200 or newer

 * DRC02 PCB number: 568-100 or newer

 */

/dts-v1/;



#include "stm32mp153.dtsi"

#include "stm32mp15xc.dtsi"

#include "stm32mp15xx-dhcom-som.dtsi"

#include "stm32mp15xx-dhcom-drc02.dtsi"



/ {

	model = "DH electronics STM32MP153C DHCOM DRC02";

	compatible = "dh,stm32mp153c-dhcom-drc02", "dh,stm32mp153c-dhcom-som",

		     "st,stm32mp153";

};



&m_can1 {

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

	pinctrl-0 = <&m_can1_pins_a>;

	pinctrl-1 = <&m_can1_sleep_pins_a>;

	status = "okay";

};



&m_can2 {

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

	pinctrl-0 = <&m_can2_pins_a>;

	pinctrl-1 = <&m_can2_sleep_pins_a>;

	status = "okay";

};

arch/arm/boot/dts/stm32mp157c-dhcom-pdk2.dts

+2 −2
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 
 *

 * DHCOM STM32MP1 variant:

 * DHCM-STM32MP157C-C065-R102-F0819-SPI-E2-CAN2-SDR104-RTC-WBT-T-DSI-I-01D2

 * DHCOR PCB number: 587-200 or newer

 * DHCOM PCB number: 587-200 or newer

 * PDK2 PCB number: 516-400 or newer

 */

/dts-v1/;
@@ -15,7 +15,7 @@ 
#include "stm32mp15xx-dhcom-pdk2.dtsi"



/ {

	model = "DH Electronics STM32MP157C DHCOM Premium Developer Kit (2)";

	model = "DH electronics STM32MP157C DHCOM Premium Developer Kit (2)";

	compatible = "dh,stm32mp157c-dhcom-pdk2", "dh,stm32mp157c-dhcom-som",

		     "st,stm32mp157";

};

arch/arm/boot/dts/stm32mp15xx-dhcom-drc02.dtsi

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+157 −0
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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause

/*

 * Copyright (C) 2020 Marek Vasut <marex@denx.de>

 */



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

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



/ {

	aliases {

		serial0 = &uart4;

		serial1 = &usart3;

		serial2 = &uart8;

	};



	chosen {

		stdout-path = "serial0:115200n8";

	};

};



&adc {

	status = "disabled";

};



&dac {

	status = "disabled";

};



&gpiob {

	/*

	 * NOTE: On DRC02, the RS485_RX_En is controlled by a separate

	 * GPIO line, however the STM32 UART driver assumes RX happens

	 * during TX anyway and that it only controls drive enable DE

	 * line. Hence, the RX is always enabled here.

	 */

	rs485-rx-en {

		gpio-hog;

		gpios = <8 GPIO_ACTIVE_HIGH>;

		output-low;

		line-name = "rs485-rx-en";

	};

};



&gpiod {

	gpio-line-names = "", "", "", "",

			  "", "", "", "",

			  "", "", "", "Out1",

			  "Out2", "", "", "";

};



&gpioi {

	gpio-line-names = "In1", "", "", "",

			  "", "", "", "",

			  "In2", "", "", "",

			  "", "", "", "";



	/*

	 * NOTE: The USB Hub on the DRC02 needs a reset signal to be

	 * pulled high in order to be detected by the USB Controller.

	 * This signal should be handled by USB power sequencing in

	 * order to reset the Hub when USB bus is powered down, but

	 * so far there is no such functionality.

	 */

	usb-hub {

		gpio-hog;

		gpios = <2 GPIO_ACTIVE_HIGH>;

		output-high;

		line-name = "usb-hub-reset";

	};

};



&i2c2 {

	pinctrl-names = "default";

	pinctrl-0 = <&i2c2_pins_a>;

	i2c-scl-rising-time-ns = <185>;

	i2c-scl-falling-time-ns = <20>;

	status = "okay";

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;

	status = "okay";



	eeprom@50 {

		compatible = "atmel,24c04";

		reg = <0x50>;

		pagesize = <16>;

	};

};



&i2c5 {	/* TP7/TP8 */

	pinctrl-names = "default";

	pinctrl-0 = <&i2c5_pins_a>;

	i2c-scl-rising-time-ns = <185>;

	i2c-scl-falling-time-ns = <20>;

	status = "okay";

	/* spare dmas for other usage */

	/delete-property/dmas;

	/delete-property/dma-names;

};



&sdmmc3 {

	/*

	 * On DRC02, the SoM does not have SDIO WiFi. The pins

	 * are used for on-board microSD slot instead.

	 */

	/delete-property/broken-cd;

	cd-gpios = <&gpioi 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

	disable-wp;

};



&spi1 {

	pinctrl-names = "default";

	pinctrl-0 = <&spi1_pins_a>;

	cs-gpios = <&gpioz 3 0>;

	/* Use PIO for the display */

	/delete-property/dmas;

	/delete-property/dma-names;

	status = "disabled";	/* Enable once there is display driver */

	/*

	 * Note: PF3/GPIO_A , PD6/GPIO_B , PG0/GPIO_C , PC6/GPIO_E are

	 * also connected to the display board connector.

	 */

};



&usart3 {

	pinctrl-names = "default";

	pinctrl-0 = <&usart3_pins_a>;

	status = "okay";

};



/*

 * Note: PI3 is UART1_RTS and PI5 is UART1_CTS on DRC02 (uart4 of STM32MP1),

 *       however the STM32MP1 pinmux cannot map them to UART4 .

 */



&uart8 {	/* RS485 */

	linux,rs485-enabled-at-boot-time;

	pinctrl-names = "default";

	pinctrl-0 = <&uart8_pins_a>;

	rts-gpios = <&gpioe 6 GPIO_ACTIVE_HIGH>;

	status = "okay";

};



&usbh_ehci {

	phys = <&usbphyc_port0>;

	status = "okay";

};



&usbphyc {

	status = "okay";

};



&usbphyc_port0 {

	phy-supply = <&vdd_usb>;

	vdda1v1-supply = <&reg11>;

	vdda1v8-supply = <&reg18>;

};