Commit 644b213c authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: configure shared DMA pool reservation in kc705 DTS 



Add example 64MByte long reservation in the first 512MBytes of physical
memory used as shared DMA pool.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 9d2ffe5c

arch/xtensa/boot/dts/kc705.dts

+16 −0
Original line number Diff line number Diff line
@@ -11,4 +11,20 @@ 
		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;

		};

	};

};

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