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// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright (C) STMicroelectronics 2019 - All Rights Reserved * Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics. */ /dts-v1/; #include "stm32mp157.dtsi" #include "stm32mp15xc.dtsi" #include "stm32mp15-pinctrl.dtsi" #include "stm32mp15xxac-pinctrl.dtsi" #include "stm32mp15xx-dkx.dtsi" / { model = "STMicroelectronics STM32MP157C-DK2 Discovery Board"; compatible = "st,stm32mp157c-dk2", "st,stm32mp157"; aliases { ethernet0 = ðernet0; serial0 = &uart4; serial1 = &usart3; serial2 = &uart7; serial3 = &usart2; }; chosen { stdout-path = "serial0:115200n8"; }; }; &cryp1 { status = "okay"; }; &dsi { status = "okay"; phy-dsi-supply = <®18>; ports { port@0 { reg = <0>; dsi_in: endpoint { remote-endpoint = <<dc_ep1_out>; }; }; port@1 { reg = <1>; dsi_out: endpoint { remote-endpoint = <&panel_in>; }; }; }; panel@0 { compatible = "orisetech,otm8009a"; reg = <0>; reset-gpios = <&gpioe 4 GPIO_ACTIVE_LOW>; power-supply = <&v3v3>; status = "okay"; port { panel_in: endpoint { remote-endpoint = <&dsi_out>; }; }; }; }; &i2c1 { touchscreen@38 { compatible = "focaltech,ft6236"; reg = <0x38>; interrupts = <2 2>; interrupt-parent = <&gpiof>; interrupt-controller; touchscreen-size-x = <480>; touchscreen-size-y = <800>; status = "okay"; }; }; <dc { status = "okay"; port { ltdc_ep1_out: endpoint@1 { reg = <1>; remote-endpoint = <&dsi_in>; }; }; }; &usart2 { pinctrl-names = "default", "sleep", "idle"; pinctrl-0 = <&usart2_pins_c>; pinctrl-1 = <&usart2_sleep_pins_c>; pinctrl-2 = <&usart2_idle_pins_c>; status = "disabled"; }; |
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This stm32mp157c-dk2.dts
describes the hardware of our Discovery Kit 2 platform. In fact, it only describes what is specific to the Discovery Kit 2: the display panel, the touchscreen, the WiFi and Bluetooth chip. Everything else is common with the Discovery Kit 1 platform, which is why the stm32mp157c-dk2.dts
file includes the arm/boot/dts/stm32mp157a-dk1.dtsfile. Indeed, stm32mp157a-dk1.dts
describes the hardware on the Discovery Kit 1, which is the same as the Discovery Kit 2, without the display, touchscreen and WiFi/Bluetooth chip.
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// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) STMicroelectronics 2019 - All Rights Reserved
* Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
*/
/dts-v1/;
#include "stm32mp157.dtsi"
#include "stm32mp15-pinctrl.dtsi"
#include "stm32mp15xxac-pinctrl.dtsi"
#include "stm32mp15xx-dkx.dtsi"
/ {
model = "STMicroelectronics STM32MP157A-DK1 Discovery Board";
compatible = "st,stm32mp157a-dk1", "st,stm32mp157";
aliases {
ethernet0 = ðernet0;
serial0 = &uart4;
serial1 = &usart3;
serial2 = &uart7;
};
chosen {
stdout-path = "serial0:115200n8";
};
};
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In turn, the stm32mp157a-dk1.dts
includes three other Device Tree files:
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