Commit 00f69ba9 authored by Maxime Ripard's avatar Maxime Ripard
Browse files

ARM: dts: sun5i: Add A10s and A13 SRAM and SRAM controller 



The A10s and A13 have a few SRAM that can be mapped either to a device or
to the CPU, with the mapping being controlled by a SRAM controller.

Add the SRAM controller, the SRAM that it drives and the section that can
be used by the various devices.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Tested-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 1fbc1517

arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts

+4 −0
Original line number Diff line number Diff line
@@ -88,6 +88,10 @@ 
	status = "okay";

};



&emac_sram {

	status = "okay";

};



&i2c0 {

	pinctrl-names = "default";

	pinctrl-0 = <&i2c0_pins_a>;

arch/arm/boot/dts/sun5i-a10s.dtsi

+9 −0
Original line number Diff line number Diff line
@@ -125,6 +125,7 @@ 
			reg = <0x01c0b000 0x1000>;

			interrupts = <55>;

			clocks = <&ahb_gates 17>;

			allwinner,sram = <&emac_sram 1>;

			status = "disabled";

		};
@@ -201,3 +202,11 @@ 
		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;

	};

};



&sram_a {

	emac_sram: sram-section@8000 {

		compatible = "allwinner,sun4i-a10-sram-a3-a4";

		reg = <0x8000 0x4000>;

		status = "disabled";

	};

};

arch/arm/boot/dts/sun5i.dtsi

+30 −0
Original line number Diff line number Diff line
@@ -299,6 +299,36 @@ 
		#size-cells = <1>;

		ranges;



		sram-controller@01c00000 {

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

			reg = <0x01c00000 0x30>;

			#address-cells = <1>;

			#size-cells = <1>;

			ranges;



			sram_a: sram@00000000 {

				compatible = "mmio-sram";

				reg = <0x00000000 0xc000>;

				#address-cells = <1>;

				#size-cells = <1>;

				ranges = <0 0x00000000 0xc000>;

			};



			sram_d: sram@00010000 {

				compatible = "mmio-sram";

				reg = <0x00010000 0x1000>;

				#address-cells = <1>;

				#size-cells = <1>;

				ranges = <0 0x00010000 0x1000>;



				otg_sram: sram-section@0000 {

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

					reg = <0x0000 0x1000>;

					status = "disabled";

				};

			};

		};



		dma: dma-controller@01c02000 {

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

			reg = <0x01c02000 0x1000>;

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