Commit 05117baf authored by Marek Vasut's avatar Marek Vasut Committed by Mathieu Poirier
Browse files

dt-bindings: remoteproc: imx_rproc: Support i.MX8MN/P MMIO 



The MX8M CM7 boot via SMC call is problematic, since not all versions
of ATF support this interface. Document MMIO support used to boot the
CM7 on MX8MN/MP instead and discern MMIO interface using DT compatible
string. Document GPR register syscon phandle which is required by the
MMIO interface too.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230724222418.163220-1-marex@denx.de


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent 7784311c

Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml

+20 −0
Original line number Diff line number Diff line
@@ -20,7 +20,9 @@ properties: 
      - fsl,imx7ulp-cm4

      - fsl,imx8mm-cm4

      - fsl,imx8mn-cm7

      - fsl,imx8mn-cm7-mmio

      - fsl,imx8mp-cm7

      - fsl,imx8mp-cm7-mmio

      - fsl,imx8mq-cm4

      - fsl,imx8qm-cm4

      - fsl,imx8qxp-cm4
@@ -70,6 +72,11 @@ properties: 
    description:

      Specify CPU entry address for SCU enabled processor.



  fsl,iomuxc-gpr:

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

    description:

      Phandle to IOMUXC GPR block which provide access to CM7 CPUWAIT bit.



  fsl,resource-id:

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

    description:
@@ -79,6 +86,19 @@ properties: 
required:

  - compatible



allOf:

  - if:

      properties:

        compatible:

          not:

            contains:

              enum:

                - fsl,imx8mn-cm7-mmio

                - fsl,imx8mp-cm7-mmio

    then:

      properties:

        fsl,iomuxc-gpr: false



additionalProperties: false



examples: