arch/arm64/boot/dts/ti/k3-j721s2-evm-gesi-exp-board.dtso

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-j721s2-evm-gesi-exp-board.dtso

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-j721s2-evm-gesi-exp-board.dtso
Extension
.dtso
Size
2411 bytes
Lines
86
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
/**
 * DT Overlay for MAIN CPSW2G using GESI Expansion Board with J7 common processor board.
 *
 * GESI Board Product Link: https://www.ti.com/tool/J7EXPCXEVM
 *
 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/net/ti-dp83867.h>

#include "k3-pinctrl.h"

&{/} {
	aliases {
		ethernet1 = "/bus@100000/ethernet@c200000/ethernet-ports/port@1";
	};
};

&main_pmx0 {
	main_cpsw_mdio_default_pins: main-cpsw-mdio-default-pins {
		pinctrl-single,pins = <
			J721S2_IOPAD(0x0c0, PIN_OUTPUT, 6) /* (T28) MCASP1_AXR0.MDIO0_MDC */
			J721S2_IOPAD(0x0bc, PIN_INPUT, 6) /* (V28) MCASP1_AFSX.MDIO0_MDIO */
		>;
	};

	rgmii1_default_pins: rgmii1-default-pins {
		pinctrl-single,pins = <
			J721S2_IOPAD(0x0b8, PIN_INPUT, 6) /* (AA24) MCASP1_ACLKX.RGMII1_RD0 */
			J721S2_IOPAD(0x0a0, PIN_INPUT, 6) /* (AB25) MCASP0_AXR12.RGMII1_RD1 */
			J721S2_IOPAD(0x0a4, PIN_INPUT, 6) /* (T23) MCASP0_AXR13.RGMII1_RD2 */
			J721S2_IOPAD(0x0a8, PIN_INPUT, 6) /* (U24) MCASP0_AXR14.RGMII1_RD3 */
			J721S2_IOPAD(0x0b0, PIN_INPUT, 6) /* (AD26) MCASP1_AXR3.RGMII1_RXC */
			J721S2_IOPAD(0x0ac, PIN_INPUT, 6) /* (AC25) MCASP0_AXR15.RGMII1_RX_CTL */
			J721S2_IOPAD(0x08c, PIN_OUTPUT, 6) /* (T25) MCASP0_AXR7.RGMII1_TD0 */
			J721S2_IOPAD(0x090, PIN_OUTPUT, 6) /* (W24) MCASP0_AXR8.RGMII1_TD1 */
			J721S2_IOPAD(0x094, PIN_OUTPUT, 6) /* (AA25) MCASP0_AXR9.RGMII1_TD2 */
			J721S2_IOPAD(0x098, PIN_OUTPUT, 6) /* (V25) MCASP0_AXR10.RGMII1_TD3 */
			J721S2_IOPAD(0x0b4, PIN_OUTPUT, 6) /* (U25) MCASP1_AXR4.RGMII1_TXC */
			J721S2_IOPAD(0x09c, PIN_OUTPUT, 6) /* (T24) MCASP0_AXR11.RGMII1_TX_CTL */
		>;
	};
};

&exp1 {
	p15-hog {
		/* P15 - EXP_MUX2 */
		gpio-hog;
		gpios = <13 GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "EXP_MUX2";
	};
};

&main_cpsw {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&rgmii1_default_pins>;
};

&main_cpsw_mdio {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&main_cpsw_mdio_default_pins>;
	#address-cells = <1>;

Annotation

Implementation Notes