arch/arm/boot/dts/marvell/armada-38x-solidrun-microsom.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/marvell/armada-38x-solidrun-microsom.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/marvell/armada-38x-solidrun-microsom.dtsi
Extension
.dtsi
Size
2336 bytes
Lines
118
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 OR MIT)
/*
 * Device Tree file for SolidRun Armada 38x Microsom
 *
 *  Copyright (C) 2015 Russell King
 */
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>

/ {
	memory {
		device_type = "memory";
		reg = <0x00000000 0x10000000>; /* 256 MB */
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;

		internal-regs {
			rtc@a3800 {
				/*
				 * If the rtc doesn't work, run "date reset"
				 * twice in u-boot.
				 */
				status = "okay";
			};
		};
	};
};

&bm {
	status = "okay";
};

&bm_bppi {
	status = "okay";
};

&eth0 {
	/* ethernet@70000 */
	pinctrl-0 = <&ge0_rgmii_pins>;
	pinctrl-names = "default";
	phy = <&phy_dedicated>;
	phy-mode = "rgmii-id";
	buffer-manager = <&bm>;
	bm,pool-long = <0>;
	bm,pool-short = <1>;
	status = "okay";
};

&mdio {
	/*
	 * Add the phy clock here, so the phy can be accessed to read its
	 * IDs prior to binding with the driver.
	 */
	pinctrl-0 = <&mdio_pins &microsom_phy_clk_pins>;
	pinctrl-names = "default";

	phy_dedicated: ethernet-phy@0 {
		/*
		 * Annoyingly, the marvell phy driver configures the LED
		 * register, rather than preserving reset-loaded setting.
		 * We undo that rubbish here.
		 */
		marvell,reg-init = <3 16 0 0x101e>;
		reg = <0>;

Annotation

Implementation Notes