arch/arm64/boot/dts/freescale/imx8-ss-cm41.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8-ss-cm41.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8-ss-cm41.dtsi
Extension
.dtsi
Size
1995 bytes
Lines
69
Domain
Architecture Layer
Bucket
arch/arm64
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 2024 NXP
 *	Dong Aisheng <aisheng.dong@nxp.com>
 */

#include <dt-bindings/firmware/imx/rsrc.h>
#include <dt-bindings/clock/imx8-lpcg.h>

cm41_ipg_clk: clock-cm41-ipg {
	compatible = "fixed-clock";
	#clock-cells = <0>;
	clock-frequency = <132000000>;
	clock-output-names = "cm41_ipg_clk";
};

cm41_subsys: bus@38000000 {
	compatible = "simple-bus";
	#address-cells = <1>;
	#size-cells = <1>;
	ranges = <0x38000000 0x0 0x38000000 0x4000000>;
	interrupt-parent = <&cm41_intmux>;

	cm41_i2c: i2c@3b230000 {
		compatible = "fsl,imx8qxp-lpi2c", "fsl,imx7ulp-lpi2c";
		reg = <0x3b230000 0x1000>;
		interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
		clocks = <&cm41_i2c_lpcg IMX_LPCG_CLK_0>,
			 <&cm41_i2c_lpcg IMX_LPCG_CLK_4>;
		clock-names = "per", "ipg";
		assigned-clocks = <&clk IMX_SC_R_M4_1_I2C IMX_SC_PM_CLK_PER>;
		assigned-clock-rates = <24000000>;
		power-domains = <&pd IMX_SC_R_M4_1_I2C>;
		status = "disabled";
	};

	cm41_intmux: intmux@3b400000 {
		compatible = "fsl,imx-intmux";
		reg = <0x3b400000 0x1000>;
		interrupt-parent = <&gic>;
		interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-controller;
		#interrupt-cells = <2>;
		clocks = <&cm41_ipg_clk>;
		clock-names = "ipg";
		power-domains = <&pd IMX_SC_R_M4_1_INTMUX>;
		status = "disabled";
	};

	cm41_i2c_lpcg: clock-controller@3b630000 {
		compatible = "fsl,imx8qxp-lpcg";
		reg = <0x3b630000 0x1000>;
		#clock-cells = <1>;
		clocks = <&clk IMX_SC_R_M4_1_I2C IMX_SC_PM_CLK_PER>,
			 <&cm41_ipg_clk>;
		clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
		clock-output-names = "cm41_lpcg_i2c_clk",
				     "cm41_lpcg_i2c_ipg_clk";
		power-domains = <&pd IMX_SC_R_M4_1_I2C>;
	};
};

Annotation

Implementation Notes