Commit 7e9e2d18 authored by Alexandre Torgue's avatar Alexandre Torgue
Browse files

ARM: dts: stm32: add initial support of stm32mp135f-dk board 



Add support of stm32mp135f discovery board (part number: STM32MP135F-DK).
It embeds a STM32MP135F SOC with 512 MB of DDR3.
Several connections are available on this board:
    4*USB2.0, 1*USB2.0 typeC DRD, SDcard, 2*RJ45, HDMI, Combo Wifi/BT, ...

Only SD card, uart4 (console) and watchdog IPs are enabled in this commit.

Signed-off-by: default avatarAlexandre Torgue <alexandre.torgue@foss.st.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 396e4168

arch/arm/boot/dts/Makefile

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@@ -1113,6 +1113,7 @@ dtb-$(CONFIG_ARCH_STM32) += \ 
	stm32h743i-eval.dtb \

	stm32h743i-disco.dtb \

	stm32h750i-art-pi.dtb \

	stm32mp135f-dk.dtb \

	stm32mp153c-dhcom-drc02.dtb \

	stm32mp157a-avenger96.dtb \

	stm32mp157a-dhcor-avenger96.dtb \

arch/arm/boot/dts/stm32mp13-pinctrl.dtsi

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

/*

 * Copyright (C) STMicroelectronics 2021 - All Rights Reserved

 * Author: Alexandre Torgue <alexandre.torgue@foss.st.com>

 */

#include <dt-bindings/pinctrl/stm32-pinfunc.h>



&pinctrl {

	sdmmc1_b4_pins_a: sdmmc1-b4-0 {

		pins1 {

			pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */

				 <STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */

				 <STM32_PINMUX('C', 10, AF12)>, /* SDMMC1_D2 */

				 <STM32_PINMUX('C', 11, AF12)>, /* SDMMC1_D3 */

				 <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */

			slew-rate = <1>;

			drive-push-pull;

			bias-disable;

		};

		pins2 {

			pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */

			slew-rate = <2>;

			drive-push-pull;

			bias-disable;

		};

	};



	sdmmc1_b4_od_pins_a: sdmmc1-b4-od-0 {

		pins1 {

			pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */

				 <STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */

				 <STM32_PINMUX('C', 10, AF12)>, /* SDMMC1_D2 */

				 <STM32_PINMUX('C', 11, AF12)>; /* SDMMC1_D3 */

			slew-rate = <1>;

			drive-push-pull;

			bias-disable;

		};

		pins2 {

			pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */

			slew-rate = <2>;

			drive-push-pull;

			bias-disable;

		};

		pins3 {

			pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */

			slew-rate = <1>;

			drive-open-drain;

			bias-disable;

		};

	};



	uart4_pins_a: uart4-0 {

		pins1 {

			pinmux = <STM32_PINMUX('D', 6, AF8)>; /* UART4_TX */

			bias-disable;

			drive-push-pull;

			slew-rate = <0>;

		};

		pins2 {

			pinmux = <STM32_PINMUX('D', 8, AF8)>; /* UART4_RX */

			bias-disable;

		};

	};

};

arch/arm/boot/dts/stm32mp135f-dk.dts

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

/*

 * Copyright (C) STMicroelectronics 2021 - All Rights Reserved

 * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.

 */



/dts-v1/;



#include "stm32mp135.dtsi"

#include "stm32mp13xf.dtsi"

#include "stm32mp13-pinctrl.dtsi"



/ {

	model = "STMicroelectronics STM32MP135F-DK Discovery Board";

	compatible = "st,stm32mp135f-dk", "st,stm32mp135";



	aliases {

		serial0 = &uart4;

	};



	memory@c0000000 {

		device_type = "memory";

		reg = <0xc0000000 0x20000000>;

	};



	vdd_sd: vdd-sd {

		compatible = "regulator-fixed";

		regulator-name = "vdd_sd";

		regulator-min-microvolt = <2900000>;

		regulator-max-microvolt = <2900000>;

		regulator-always-on;

	};

};



&iwdg2 {

	timeout-sec = <32>;

	status = "okay";

};



&sdmmc1 {

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

	pinctrl-0 = <&sdmmc1_b4_pins_a>;

	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;

	broken-cd;

	disable-wp;

	st,neg-edge;

	bus-width = <4>;

	vmmc-supply = <&vdd_sd>;

	status = "okay";

};



&uart4 {

	pinctrl-names = "default";

	pinctrl-0 = <&uart4_pins_a>;

	status = "okay";

};