ARM: dts: dra7: Add ocmcram nodes (a5fa09b6) · Commits · 戴 / test

Add all ocmcram nodes to dra7.dtsi using the generic mmio-sram driver. DRA7xx and AM57xx families of SoCs can contain three ocmcram regions of SRAM, one of 512kb and also an optional two additional of 1Mb each. Mark the two additional 1MB regions of SRAM as disabled as only ocmcmram1 is on all variants of the SoCs, then depending on which specific variant is in use the ocmcram2 and ocmcram3 nodes can be enabled in the board dts file if the data manual for that part number indicates the ocmcram region is available. Signed-off-by:

Dave Gerlach <d-gerlach@ti.com> Reviewed-by:

Andreas Dannenberg <dannenberg@ti.com> Signed-off-by:

Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

+32 −0

Original line number	Diff line number	Diff line
		@@ -304,6 +304,38 @@
		};
		};

		ocmcram1: ocmcram@40300000 {
		compatible = "mmio-sram";
		reg = <0x40300000 0x80000>;
		ranges = <0x0 0x40300000 0x80000>;
		#address-cells = <1>;
		#size-cells = <1>;
		};

		/*
		* NOTE: ocmcram2 and ocmcram3 are not available on all
		* DRA7xx and AM57xx variants. Confirm availability in
		* the data manual for the exact part number in use
		* before enabling these nodes in the board dts file.
		*/
		ocmcram2: ocmcram@40400000 {
		status = "disabled";
		compatible = "mmio-sram";
		reg = <0x40400000 0x100000>;
		ranges = <0x0 0x40400000 0x100000>;
		#address-cells = <1>;
		#size-cells = <1>;
		};

		ocmcram3: ocmcram@40500000 {
		status = "disabled";
		compatible = "mmio-sram";
		reg = <0x40500000 0x100000>;
		ranges = <0x0 0x40500000 0x100000>;
		#address-cells = <1>;
		#size-cells = <1>;
		};

		bandgap: bandgap@4a0021e0 {
		reg = <0x4a0021e0 0xc
		0x4a00232c 0xc

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