arch/arm64/boot/dts/mediatek/mt8390-grinn-genio-sbc.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/mediatek/mt8390-grinn-genio-sbc.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/mediatek/mt8390-grinn-genio-sbc.dtsi
Extension
.dtsi
Size
11403 bytes
Lines
539
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 OR MIT)
/*
 * Copyright (C) 2025 Grinn sp. z o.o.
 * Author: Mateusz Koza <mateusz.koza@grinn-global.com>
 */

#include <dt-bindings/gpio/gpio.h>

/ {
	chassis-type = "embedded";

	aliases {
		ethernet0 = &eth;
		i2c0 = &i2c0;
		i2c2 = &i2c2;
		i2c3 = &i2c3;
		i2c5 = &i2c5;
		i2c6 = &i2c6;
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:921600n8";
	};

	firmware {
		optee {
			compatible = "linaro,optee-tz";
			method = "smc";
		};
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		/*
		 * 12 MiB reserved for OP-TEE (BL32)
		 * +-----------------------+ 0x43e0_0000
		 * |      SHMEM 2MiB       |
		 * +-----------------------+ 0x43c0_0000
		 * |        | TA_RAM  8MiB |
		 * + TZDRAM +--------------+ 0x4340_0000
		 * |        | TEE_RAM 2MiB |
		 * +-----------------------+ 0x4320_0000
		 */
		optee_reserved: optee@43200000 {
			no-map;
			reg = <0 0x43200000 0 0x00c00000>;
		};

		scp_mem: memory@50000000 {
			compatible = "shared-dma-pool";
			reg = <0 0x50000000 0 0x2900000>;
			no-map;
		};

		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
		bl31_secmon_reserved: memory@54600000 {
			no-map;
			reg = <0 0x54600000 0x0 0x200000>;
		};

		apu_mem: memory@55000000 {
			compatible = "shared-dma-pool";
			reg = <0 0x55000000 0 0x1400000>; /* 20 MB */
		};

		vpu_mem: memory@57000000 {

Annotation

Implementation Notes