arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtso

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtso

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtso
Extension
.dtso
Size
1487 bytes
Lines
64
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: arch/arm64
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only OR MIT
/*
 * Copyright (C) 2025 PHYTEC Messtechnik GmbH
 * Authors:
 *   Wadim Egorov <w.egorov@phytec.de>
 *   Daniel Schultz <d.schultz@phytec.de>
 *
 * GPIO, SPI and UART examples for the X27 expansion connector.
 */

/dts-v1/;
/plugin/;

#include "k3-pinctrl.h"

&{/} {
	aliases {
		serial5 = "/bus@f4000/serial@2830000";
	};
};

&main_pmx0 {
	main_gpio1_exp_header_gpio_pins_default: main-gpio1-exp-header-gpio-default-pins {
		pinctrl-single,pins = <
			AM64X_IOPAD(0x0220, PIN_INPUT, 7)	/* (D14) SPI1_CS1.GPIO1_48 */
		>;
	};

	main_spi1_pins_default: main-spi1-default-pins {
		pinctrl-single,pins = <
			AM64X_IOPAD(0x0224, PIN_INPUT, 0)	/* (C14) SPI1_CLK */
			AM64X_IOPAD(0x021c, PIN_OUTPUT, 0)	/* (B14) SPI1_CS0 */
			AM64X_IOPAD(0x0228, PIN_OUTPUT, 0)	/* (B15) SPI1_D0 */
			AM64X_IOPAD(0x022c, PIN_INPUT, 0)	/* (A15) SPI1_D1 */
		>;
	};

	main_uart3_pins_default: main-uart3-default-pins {
		pinctrl-single,pins = <
			AM64X_IOPAD(0x0048, PIN_INPUT, 2)       /* (U20) GPMC0_AD3.UART3_RXD */
			AM64X_IOPAD(0x004c, PIN_OUTPUT, 2)      /* (U18) GPMC0_AD4.UART3_TXD */
		>;
	};
};

&main_gpio1 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_gpio1_exp_header_gpio_pins_default>;
	status = "okay";
};

&main_spi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_spi1_pins_default>;
	ti,pindir-d0-out-d1-in;
	status = "okay";
};

&main_uart3 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_uart3_pins_default>;
	status = "okay";
};

Annotation

Implementation Notes