Commit fc7b9168 authored by Chen Wang's avatar Chen Wang Committed by Ulf Hansson
Browse files

dt-bindings: mmc: sdhci-of-dwcmhsc: Add Sophgo SG2042 support 



SG2042 use Synopsys dwcnshc IP for SD/eMMC controllers.

SG2042 defines 3 clocks for SD/eMMC controllers.
- EMMC_100M/SD_100M for cclk(Card clocks in DWC_mshc), so reuse
  existing "core".
- AXI_EMMC/AXI_SD for aclk/hclk(Bus interface clocks in DWC_mshc)
  and blck(Core Base Clock in DWC_mshc), these 3 clocks share one
  source, so reuse existing "bus".
- 100K_EMMC/100K_SD for cqetmclk(Timer clocks in DWC_mshc), so reuse
  existing "timer" which was added for rockchip specified.

Signed-off-by: default avatarChen Wang <unicorn_wang@outlook.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/9ca450097e5389a38bcd7d8ddf863766df4cea10.1722847198.git.unicorn_wang@outlook.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent a2e34ac1

Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml

+43 −17
Original line number Diff line number Diff line
@@ -10,9 +10,6 @@ maintainers: 
  - Ulf Hansson <ulf.hansson@linaro.org>

  - Jisheng Zhang <Jisheng.Zhang@synaptics.com>



allOf:

  - $ref: mmc-controller.yaml#



properties:

  compatible:

    enum:
@@ -21,6 +18,7 @@ properties: 
      - snps,dwcmshc-sdhci

      - sophgo,cv1800b-dwcmshc

      - sophgo,sg2002-dwcmshc

      - sophgo,sg2042-dwcmshc

      - thead,th1520-dwcmshc



  reg:
@@ -31,22 +29,11 @@ properties: 


  clocks:

    minItems: 1

    items:

      - description: core clock

      - description: bus clock for optional

      - description: axi clock for rockchip specified

      - description: block clock for rockchip specified

      - description: timer clock for rockchip specified



    maxItems: 5



  clock-names:

    minItems: 1

    items:

      - const: core

      - const: bus

      - const: axi

      - const: block

      - const: timer

    maxItems: 5



  resets:

    maxItems: 5
@@ -63,7 +50,6 @@ properties: 
    description: Specify the number of delay for tx sampling.

    $ref: /schemas/types.yaml#/definitions/uint8





required:

  - compatible

  - reg
@@ -71,6 +57,46 @@ required: 
  - clocks

  - clock-names



allOf:

  - $ref: mmc-controller.yaml#



  - if:

      properties:

        compatible:

          contains:

            const: sophgo,sg2042-dwcmshc



    then:

      properties:

        clocks:

          items:

            - description: core clock

            - description: bus clock

            - description: timer clock

        clock-names:

          items:

            - const: core

            - const: bus

            - const: timer

    else:

      properties:

        clocks:

          minItems: 1

          items:

            - description: core clock

            - description: bus clock for optional

            - description: axi clock for rockchip specified

            - description: block clock for rockchip specified

            - description: timer clock for rockchip specified

        clock-names:

          minItems: 1

          items:

            - const: core

            - const: bus

            - const: axi

            - const: block

            - const: timer



unevaluatedProperties: false



examples: