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Commit 6d92b80f authored by Hans de Goede's avatar Hans de Goede Committed by Maxime Ripard
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ARM: dts: sun4i: Add A10 SRAM and SRAM controller 



The A10 has a few SRAM that can be mapped either to a device or to the CPU,
with the mapping being controlled by a SRAM controller.

Since most of the time these SRAM won't be accessible by the CPU,
we can't use the mmio-sram driver and compatible.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
parent dd2fd84f

arch/arm/boot/dts/sun4i-a10.dtsi

+34 −0
Original line number Diff line number Diff line
@@ -450,12 +450,46 @@ 
		};

	};



	/*

	 * Note we use the address where the mmio registers start, not where

	 * the SRAM blocks start, this cannot be changed because that would be

	 * a devicetree ABI change.

	 */

	soc@01c00000 {

		compatible = "simple-bus";

		#address-cells = <1>;

		#size-cells = <1>;

		ranges;



		sram@00000000 {

			compatible = "allwinner,sun4i-a10-sram";

			reg = <0x00000000 0x4000>;

			allwinner,sram-name = "A1";

		};



		sram@00004000 {

			compatible = "allwinner,sun4i-a10-sram";

			reg = <0x00004000 0x4000>;

			allwinner,sram-name = "A2";

		};



		sram@00008000 {

			compatible = "allwinner,sun4i-a10-sram";

			reg = <0x00008000 0x4000>;

			allwinner,sram-name = "A3-A4";

		};



		sram@00010000 {

			compatible = "allwinner,sun4i-a10-sram";

			reg = <0x00010000 0x1000>;

			allwinner,sram-name = "D";

		};



		sram-controller@01c00000 {

			compatible = "allwinner,sun4i-a10-sram-controller";

			reg = <0x01c00000 0x30>;

		};



		dma: dma-controller@01c02000 {

			compatible = "allwinner,sun4i-a10-dma";

			reg = <0x01c02000 0x1000>;