arch/arm64/boot/dts/freescale/imx8dxl-ss-conn.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8dxl-ss-conn.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8dxl-ss-conn.dtsi
Extension
.dtsi
Size
4557 bytes
Lines
172
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 2019~2020, 2022 NXP
 */

/delete-node/ &enet1_lpcg;
/delete-node/ &fec2;
/delete-node/ &usbotg3;
/delete-node/ &usb3_phy;
/delete-node/ &usb3_lpcg;

/ {
	conn_enet0_root_clk: clock-conn-enet0-root {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <250000000>;
		clock-output-names = "conn_enet0_root_clk";
	};

	clk_dummy: clock-dummy {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <0>;
		clock-output-names = "clk_dummy";
	};
};

&conn_subsys {
	eqos: ethernet@5b050000 {
		compatible = "nxp,imx8dxl-dwmac-eqos", "snps,dwmac-5.10a";
		reg = <0x5b050000 0x10000>;
		interrupt-parent = <&gic>;
		interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-names = "macirq", "eth_wake_irq";
		clocks = <&eqos_lpcg IMX_LPCG_CLK_4>,
			 <&eqos_lpcg IMX_LPCG_CLK_6>,
			 <&eqos_lpcg IMX_LPCG_CLK_0>,
			 <&eqos_lpcg IMX_LPCG_CLK_5>,
			 <&eqos_lpcg IMX_LPCG_CLK_2>;
		clock-names = "stmmaceth", "pclk", "ptp_ref", "tx", "mem";
		assigned-clocks = <&clk IMX_SC_R_ENET_1 IMX_SC_PM_CLK_PER>;
		assigned-clock-rates = <125000000>;
		power-domains = <&pd IMX_SC_R_ENET_1>;
		status = "disabled";
	};

	usbotg2: usb@5b0e0000 {
		compatible = "fsl,imx8dxl-usb", "fsl,imx7ulp-usb", "fsl,imx6ul-usb";
		reg = <0x5b0e0000 0x200>;
		interrupt-parent = <&gic>;
		interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
		fsl,usbphy = <&usbphy2>;
		fsl,usbmisc = <&usbmisc2 0>;
		/*
		 * usbotg1 and usbotg2 share one clcok.
		 * scu firmware disables the access to the clock and keeps
		 * it always on in case other core (M4) uses one of these.
		 */
		clocks = <&clk_dummy>;
		ahb-burst-config = <0x0>;
		tx-burst-size-dword = <0x10>;
		rx-burst-size-dword = <0x10>;
		power-domains = <&pd IMX_SC_R_USB_1>;
		status = "disabled";
	};

	usbmisc2: usbmisc@5b0e0200 {
		#index-cells = <1>;
		compatible = "fsl,imx7ulp-usbmisc", "fsl,imx7d-usbmisc", "fsl,imx6q-usbmisc";

Annotation

Implementation Notes