arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi
Extension
.dtsi
Size
19824 bytes
Lines
779
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
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
#include "tegra20.dtsi"

/*
 * Toradex Colibri T20 Module Device Tree
 * Compatible for Revisions Colibri T20 256MB V1.1B, V1.2A;
 * Colibri T20 256MB IT V1.2A; Colibri T20 512MB V1.1C, V1.2A;
 * Colibri T20 512MB IT V1.2A
 */
/ {
	memory@0 {
		/*
		 * Set memory to 256 MB to be safe as this could be used on
		 * 256 or 512 MB module. It is expected from bootloader
		 * to fix this up for 512 MB version.
		 */
		reg = <0x00000000 0x10000000>;
	};

	host1x@50000000 {
		hdmi@54280000 {
			nvidia,ddc-i2c-bus = <&hdmi_ddc>;
			nvidia,hpd-gpio =
				<&gpio TEGRA_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
			pll-supply = <&reg_1v8_avdd_hdmi_pll>;
			vdd-supply = <&reg_3v3_avdd_hdmi>;
		};
	};

	gpio@6000d000 {
		lan-reset-n-hog {
			gpio-hog;
			gpios = <TEGRA_GPIO(V, 4) GPIO_ACTIVE_HIGH>;
			output-high;
			line-name = "LAN_RESET#";
		};

		/* Tri-stating GMI_WR_N on SODIMM pin 99 nPWE */
		npwe-hog {
			gpio-hog;
			gpios = <TEGRA_GPIO(T, 5) GPIO_ACTIVE_HIGH>;
			output-high;
			line-name = "Tri-state nPWE";
		};

		/* Not tri-stating GMI_WR_N on SODIMM pin 93 RDnWR */
		rdnwr-hog {
			gpio-hog;
			gpios = <TEGRA_GPIO(T, 6) GPIO_ACTIVE_HIGH>;
			output-low;
			line-name = "Not tri-state RDnWR";
		};
	};

	pinmux@70000014 {
		pinctrl-names = "default";
		pinctrl-0 = <&state_default>;

		state_default: pinmux {
			/* Analogue Audio AC97 to WM9712 (On-module) */
			audio-refclk {
				nvidia,pins = "cdev1";
				nvidia,function = "plla_out";
				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
				nvidia,tristate = <TEGRA_PIN_DISABLE>;
			};
			dap3 {
				nvidia,pins = "dap3";
				nvidia,function = "dap3";
				nvidia,pull = <TEGRA_PIN_PULL_NONE>;

Annotation

Implementation Notes