arch/arm/boot/dts/nxp/imx/imx6q.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/imx/imx6q.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/imx/imx6q.dtsi
Extension
.dtsi
Size
11540 bytes
Lines
554
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
//
// Copyright 2013 Freescale Semiconductor, Inc.

#include <dt-bindings/interrupt-controller/irq.h>
#include "imx6q-pinfunc.h"
#include "imx6qdl.dtsi"

/ {
	aliases {
		ipu1 = &ipu2;
		spi4 = &ecspi5;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			compatible = "arm,cortex-a9";
			device_type = "cpu";
			reg = <0>;
			next-level-cache = <&L2>;
			operating-points = <
				/* kHz    uV */
				1200000 1275000
				996000  1250000
				852000  1250000
				792000  1175000
				396000  975000
			>;
			fsl,soc-operating-points = <
				/* ARM kHz  SOC-PU uV */
				1200000 1275000
				996000	1250000
				852000	1250000
				792000	1175000
				396000	1175000
			>;
			clock-latency = <61036>; /* two CLK32 periods */
			#cooling-cells = <2>;
			clocks = <&clks IMX6QDL_CLK_ARM>,
				 <&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
				 <&clks IMX6QDL_CLK_STEP>,
				 <&clks IMX6QDL_CLK_PLL1_SW>,
				 <&clks IMX6QDL_CLK_PLL1_SYS>;
			clock-names = "arm", "pll2_pfd2_396m", "step",
				      "pll1_sw", "pll1_sys";
			arm-supply = <&reg_arm>;
			pu-supply = <&reg_pu>;
			soc-supply = <&reg_soc>;
			nvmem-cells = <&cpu_speed_grade>;
			nvmem-cell-names = "speed_grade";
		};

		cpu1: cpu@1 {
			compatible = "arm,cortex-a9";
			device_type = "cpu";
			reg = <1>;
			next-level-cache = <&L2>;
			operating-points = <
				/* kHz    uV */
				1200000 1275000
				996000  1250000
				852000  1250000
				792000  1175000
				396000  975000
			>;
			fsl,soc-operating-points = <
				/* ARM kHz  SOC-PU uV */

Annotation

Implementation Notes