Commit 0759b09e authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Rob Herring
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dt-bindings: sram: Merge Renesas SRAM bindings into generic 



The Renesas SRAM bindings list only compatible so integrate them into
generic SRAM bindings schema.

Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 0f0bbb79

Documentation/devicetree/bindings/sram/renesas,smp-sram.txt

deleted100644 → 0
+0 −27
Original line number Diff line number Diff line 
* Renesas SMP SRAM



Renesas R-Car Gen2 and RZ/G1 SoCs need a small piece of SRAM for the jump stub

for secondary CPU bringup and CPU hotplug.

This memory is reserved by adding a child node to a "mmio-sram" node, cfr.

Documentation/devicetree/bindings/sram/sram.txt.



Required child node properties:

  - compatible: Must be "renesas,smp-sram",

  - reg: Address and length of the reserved SRAM.

    The full physical (bus) address must be aligned to a 256 KiB boundary.





Example:



	icram1:	sram@e63c0000 {

		compatible = "mmio-sram";

		reg = <0 0xe63c0000 0 0x1000>;

		#address-cells = <1>;

		#size-cells = <1>;

		ranges = <0 0 0xe63c0000 0x1000>;



		smp-sram@0 {

			compatible = "renesas,smp-sram";

			reg = <0 0x10>;

		};

	};

Documentation/devicetree/bindings/sram/sram.yaml

+15 −0
Original line number Diff line number Diff line
@@ -67,6 +67,7 @@ patternProperties: 
        enum:

          - amlogic,meson8-smp-sram

          - amlogic,meson8b-smp-sram

          - renesas,smp-sram

          - samsung,exynos4210-sysram

          - samsung,exynos4210-sysram-ns
@@ -185,3 +186,17 @@ examples: 
            reg = <0x1ff80 0x8>;

        };

    };



  - |

    sram@e63c0000 {

        compatible = "mmio-sram";

        reg = <0xe63c0000 0x1000>;

        #address-cells = <1>;

        #size-cells = <1>;

        ranges = <0 0xe63c0000 0x1000>;



        smp-sram@0 {

            compatible = "renesas,smp-sram";

            reg = <0 0x10>;

        };

    };