Commit 1c890754 authored by Alexandre Torgue's avatar Alexandre Torgue
Browse files

arm64: dts: st: add stm32mp257f-ev1 board support 



Add STM32MP257F Evaluation board support. It embeds a STM32MP257FAI SoC,
with 4GB of DDR4, TSN switch (2+1 ports), 2*USB typeA, 1*USB2 typeC,
SNOR OctoSPI, mini PCIe, STPMIC2 for power distribution ...

Signed-off-by: default avatarAlexandre Torgue <alexandre.torgue@foss.st.com>
parent 6defdc26

arch/arm64/boot/dts/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ subdir-y += renesas 
subdir-y += rockchip

subdir-y += socionext

subdir-y += sprd

subdir-y += st

subdir-y += synaptics

subdir-y += tesla

subdir-y += ti

arch/arm64/boot/dts/st/Makefile

0 → 100644
+2 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only

dtb-$(CONFIG_ARCH_STM32) += stm32mp257f-ev1.dtb

arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi

+31 −0
Original line number Diff line number Diff line
@@ -5,3 +5,34 @@ 
 */

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



&pinctrl {

	usart2_pins_a: usart2-0 {

		pins1 {

			pinmux = <STM32_PINMUX('A', 4, AF6)>; /* USART2_TX */

			bias-disable;

			drive-push-pull;

			slew-rate = <0>;

		};

		pins2 {

			pinmux = <STM32_PINMUX('A', 8, AF8)>; /* USART2_RX */

			bias-disable;

		};

	};



	usart2_idle_pins_a: usart2-idle-0 {

		pins1 {

			pinmux = <STM32_PINMUX('A', 4, ANALOG)>; /* USART2_TX */

		};

		pins2 {

			pinmux = <STM32_PINMUX('A', 8, AF8)>; /* USART2_RX */

			bias-disable;

		};

	};



	usart2_sleep_pins_a: usart2-sleep-0 {

		pins {

			pinmux = <STM32_PINMUX('A', 4, ANALOG)>, /* USART2_TX */

				 <STM32_PINMUX('A', 8, ANALOG)>; /* USART2_RX */

		};

	};

};

arch/arm64/boot/dts/st/stm32mp257f-ev1.dts

0 → 100644
+50 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)

/*

 * Copyright (C) STMicroelectronics 2023 - All Rights Reserved

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

 */



/dts-v1/;



#include "stm32mp257.dtsi"

#include "stm32mp25xf.dtsi"

#include "stm32mp25-pinctrl.dtsi"

#include "stm32mp25xxai-pinctrl.dtsi"



/ {

	model = "STMicroelectronics STM32MP257F-EV1 Evaluation Board";

	compatible = "st,stm32mp257f-ev1", "st,stm32mp257";



	aliases {

		serial0 = &usart2;

	};



	chosen {

		stdout-path = "serial0:115200n8";

	};



	memory@80000000 {

		device_type = "memory";

		reg = <0x0 0x80000000 0x1 0x0>;

	};



	reserved-memory {

		#address-cells = <2>;

		#size-cells = <2>;

		ranges;



		fw@80000000 {

			compatible = "shared-dma-pool";

			reg = <0x0 0x80000000 0x0 0x4000000>;

			no-map;

		};

	};

};



&usart2 {

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

	pinctrl-0 = <&usart2_pins_a>;

	pinctrl-1 = <&usart2_idle_pins_a>;

	pinctrl-2 = <&usart2_sleep_pins_a>;

	status = "okay";

};