arch/arm64/boot/dts/renesas/salvator-xs.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/salvator-xs.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/salvator-xs.dtsi
Extension
.dtsi
Size
1803 bytes
Lines
88
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
/*
 * Device Tree Source for the Salvator-X 2nd version board
 *
 * Copyright (C) 2015-2017 Renesas Electronics Corp.
 */

#include "salvator-common.dtsi"

/ {
	model = "Renesas Salvator-X 2nd version board";
	compatible = "renesas,salvator-xs";
};

&extal_clk {
	clock-frequency = <16640000>;
};

&i2c4 {
	clock-frequency = <400000>;

	versaclock6: clock-generator@6a {
		compatible = "idt,5p49v6901";
		reg = <0x6a>;
		#clock-cells = <1>;
		clocks = <&x23_clk>;
		clock-names = "xin";
		idt,shutdown = <0>;
		idt,output-enable-active = <1>;
	};
};

#ifdef SOC_HAS_SATA
&pca9654 {
	pcie-sata-switch-hog {
		gpio-hog;
		gpios = <7 GPIO_ACTIVE_HIGH>;
		output-low; /* enable SATA by default */
		line-name = "PCIE/SATA switch";
	};
};

/* SW12-7 must be set 'Off' (MD12 set to 1) which is not the default! */
#endif /* SOC_HAS_SATA */

#ifdef SOC_HAS_USB2_CH3
&ehci3 {
	dr_mode = "otg";
	status = "okay";
};

&hsusb3 {
	dr_mode = "otg";
	status = "okay";
};

&ohci3 {
	dr_mode = "otg";
	status = "okay";
};

&pfc {
	/*
	 * - On Salvator-X[S], GP6_3[01] are connected to ADV7482 as irq pins
	 *   (when SW31 is the default setting on Salvator-XS).
	 * - If SW31 is the default setting, you cannot use USB2.0 ch3 on
	 *   r8a77951 with Salvator-XS.
	 *   Hence the SW31 setting must be changed like 2) below.
	 *   1) Default setting of SW31: ON-ON-OFF-OFF-OFF-OFF:
	 *	- Connect GP6_3[01] to ADV7842.

Annotation

Implementation Notes