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

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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: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Alexandre Torgue 2021-11-18 12:26:49 +01:00
parent 6defdc2689
commit 1c89075497
4 changed files with 84 additions and 0 deletions
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1
arch/arm64/boot/dts/Makefile
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@ -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

2
arch/arm64/boot/dts/st/Makefile Normal file
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@ -0,0 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
dtb-$(CONFIG_ARCH_STM32) += stm32mp257f-ev1.dtb

31
arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
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@ -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 */
};
};
};

50
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts Normal file
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@ -0,0 +1,50 @@
// 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";
};