Commit 3539a2c6 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Krzysztof Kozlowski
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dt-bindings: memory: lpddr2: Add revision-id properties 



Add optional revision-id standard LPDDR2 properties which will help to
identify memory chip.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211006224659.21434-4-digetx@gmail.com


Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
parent 9e17f71e

Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml

+14 −0
Original line number Diff line number Diff line
@@ -24,6 +24,18 @@ properties: 
          - enum:

              - jedec,lpddr2-nvm



  revision-id1:

    $ref: /schemas/types.yaml#/definitions/uint32

    maximum: 255

    description: |

      Revision 1 value of SDRAM chip. Obtained from device datasheet.



  revision-id2:

    $ref: /schemas/types.yaml#/definitions/uint32

    maximum: 255

    description: |

      Revision 2 value of SDRAM chip. Obtained from device datasheet.



  density:

    $ref: /schemas/types.yaml#/definitions/uint32

    description: |
@@ -151,6 +163,8 @@ examples: 
        compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4";

        density = <2048>;

        io-width = <32>;

        revision-id1 = <1>;

        revision-id2 = <0>;



        tRPab-min-tck = <3>;

        tRCD-min-tck = <3>;