arch/xtensa/boot/dts/kc705.dts

Source file repositories/reference/linux-study-clean/arch/xtensa/boot/dts/kc705.dts

File Facts

System
Linux kernel
Corpus path
arch/xtensa/boot/dts/kc705.dts
Extension
.dts
Size
701 bytes
Lines
32
Domain
Architecture Layer
Bucket
arch/xtensa
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
/dts-v1/;
/include/ "xtfpga.dtsi"
/include/ "xtfpga-flash-128m.dtsi"

/ {
	compatible = "cdns,xtensa-kc705";
	chosen {
		bootargs = "earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000";
	};
	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x38000000>;
	};

	reserved-memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		/* global autoconfigured region for contiguous allocations */
		linux,cma {
			compatible = "shared-dma-pool";
			reusable;
			size = <0x04000000>;
			alignment = <0x2000>;
			alloc-ranges = <0x00000000 0x20000000>;
			linux,cma-default;
		};
	};
};

Annotation

Implementation Notes