arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi
Extension
.dtsi
Size
1986 bytes
Lines
101
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 MIT
/**
 * Device Tree Source for enabling IPC using TI SDK firmware on AM62A SoCs
 *
 * Copyright (C) 2022-2025 Texas Instruments Incorporated - https://www.ti.com/
 */

&reserved_memory {
	c7x_0_dma_memory_region: memory@99800000 {
		compatible = "shared-dma-pool";
		reg = <0x00 0x99800000 0x00 0x100000>;
		no-map;
	};

	c7x_0_memory_region: memory@99900000 {
		compatible = "shared-dma-pool";
		reg = <0x00 0x99900000 0x00 0xf00000>;
		no-map;
	};

	mcu_r5fss0_core0_dma_memory_region: memory@9b800000 {
		compatible = "shared-dma-pool";
		reg = <0x00 0x9b800000 0x00 0x100000>;
		no-map;
	};

	mcu_r5fss0_core0_memory_region: memory@9b900000 {
		compatible = "shared-dma-pool";
		reg = <0x00 0x9b900000 0x00 0xf00000>;
		no-map;
	};
};

&mailbox0_cluster0 {
	status = "okay";

	mbox_r5_0: mbox-r5-0 {
		ti,mbox-rx = <0 0 0>;
		ti,mbox-tx = <1 0 0>;
	};
};

&mailbox0_cluster1 {
	status = "okay";

	mbox_c7x_0: mbox-c7x-0 {
		ti,mbox-rx = <0 0 0>;
		ti,mbox-tx = <1 0 0>;
	};
};

&mailbox0_cluster2 {
	status = "okay";

	mbox_mcu_r5_0: mbox-mcu-r5-0 {
		ti,mbox-rx = <0 0 0>;
		ti,mbox-tx = <1 0 0>;
	};
};

&wkup_r5fss0 {
	status = "okay";
};

&wkup_r5fss0_core0 {
	mboxes = <&mailbox0_cluster0>, <&mbox_r5_0>;
	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
			<&wkup_r5fss0_core0_memory_region>;
	memory-region-names = "dma", "firmware";
	status = "okay";

Annotation

Implementation Notes