arch/arm/boot/dts/ti/omap/omap36xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap36xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap36xx.dtsi
Extension
.dtsi
Size
6164 bytes
Lines
257
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-only
/*
 * Device Tree Source for OMAP3 SoC
 *
 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
 */

#include <dt-bindings/bus/ti-sysc.h>
#include <dt-bindings/media/omap3-isp.h>

#include "omap3.dtsi"

/ {
	aliases {
		serial3 = &uart4;
	};

	cpus {
		/* OMAP3630/OMAP37xx variants OPP50 to OPP130 and OPP1G */
		cpu: cpu@0 {
			operating-points-v2 = <&cpu0_opp_table>;

			vbb-supply = <&abb_mpu_iva>;
			clock-latency = <300000>; /* From omap-cpufreq driver */
			#cooling-cells = <2>;
		};
	};

	cpu0_opp_table: opp-table {
		compatible = "operating-points-v2-ti-cpu";
		syscon = <&scm_conf>;

		opp-50-300000000 {
			/* OPP50 */
			opp-hz = /bits/ 64 <300000000>;
			/*
			 * we currently only select the max voltage from table
			 * Table 4-19 of the DM3730 Data sheet (SPRS685B)
			 * Format is:	cpu0-supply:	<target min max>
			 *		vbb-supply:	<target min max>
			 */
			opp-microvolt = <1012500 1012500 1012500>,
					 <1012500 1012500 1012500>;
			/*
			 * first value is silicon revision bit mask
			 * second one is "speed binned" bit mask
			 */
			opp-supported-hw = <0xffffffff 3>;
			opp-suspend;
		};

		opp-100-600000000 {
			/* OPP100 */
			opp-hz = /bits/ 64 <600000000>;
			opp-microvolt = <1200000 1200000 1200000>,
					 <1200000 1200000 1200000>;
			opp-supported-hw = <0xffffffff 3>;
		};

		opp-130-800000000 {
			/* OPP130 */
			opp-hz = /bits/ 64 <800000000>;
			opp-microvolt = <1325000 1325000 1325000>,
					 <1325000 1325000 1325000>;
			opp-supported-hw = <0xffffffff 3>;
		};

		opp-1000000000 {
			/* OPP1G */
			opp-hz = /bits/ 64 <1000000000>;

Annotation

Implementation Notes