arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts
Extension
.dts
Size
1545 bytes
Lines
61
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-only OR BSD-2-Clause)
/*
 * Device Tree Source for the RZ/G2LC SMARC EVK board
 *
 * Copyright (C) 2021 Renesas Electronics Corp.
 */

/dts-v1/;

/*
 * DIP-Switch SW1 setting on SoM
 * 1 : High; 0: Low
 * SW1-2 : SW_SD0_DEV_SEL	(1: eMMC; 0: uSD)
 * SW1-3 : SW_SCIF_CAN		(1: CAN1; 0: SCIF1)
 * SW1-4 : SW_RSPI_CAN		(1: CAN1; 0: RSPI1)
 * SW1-5 : SW_I2S0_I2S1		(1: I2S2 (HDMI audio); 0: I2S0)
 * Please change below macros according to SW1 setting
 */

#define SW_SD0_DEV_SEL	1

#define SW_SCIF_CAN	0
#if (SW_SCIF_CAN)
/* Due to HW routing, SW_RSPI_CAN is always 0 when SW_SCIF_CAN is set to 1 */
#define SW_RSPI_CAN	0
#else
/* Please set SW_RSPI_CAN. Default value is 1 */
#define SW_RSPI_CAN	1
#endif

#if (SW_SCIF_CAN && SW_RSPI_CAN)
#error "Can not set 1 to both SW_SCIF_CAN and SW_RSPI_CAN due to HW routing"
#endif

/* comment the #define statement to disable SCIF1 (SER0) on PMOD1 (CN7) */
#define PMOD1_SER0	1

/*
 * To enable MTU3a PWM on PMOD0,
 *  - Set DIP-Switch SW1-4 to Off position.
 *  - Set SW_RSPI_CAN macro to 0.
 *  - Set PMOD_MTU3 macro to 1.
 */
#define PMOD_MTU3	0

#if (PMOD_MTU3 && SW_RSPI_CAN)
#error "Cannot set as both PMOD_MTU3 and SW_RSPI_CAN are mutually exclusive"
#endif

/* Please set SW_I2S0_I2S1. Default value is 0 */
#define SW_I2S0_I2S1   0

#include "r9a07g044c2.dtsi"
#include "rzg2lc-smarc-som.dtsi"
#include "rzg2lc-smarc.dtsi"

/ {
	model = "Renesas SMARC EVK based on r9a07g044c2";
	compatible = "renesas,smarc-evk", "renesas,r9a07g044c2", "renesas,r9a07g044";
};

Annotation

Implementation Notes