Commit f435ce7e authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Lorenzo Pieralisi
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dt-bindings: PCI: brcmstb: add BCM4908 binding 

BCM4908 is a SoC family with PCIe controller sharing design with the one
for STB. BCM4908 has different power management and memory controller so
few tweaks are required.

PERST# signal on BCM4908 is handled by an external MISC block so it
needs specifying a reset phandle.

Link: https://lore.kernel.org/r/20201210180421.7230-2-zajec5@gmail.com


Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
parent 7c53f6b6

Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml

+28 −9
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ properties: 
    items:

      - enum:

          - brcm,bcm2711-pcie # The Raspberry Pi 4

          - brcm,bcm4908-pcie

          - brcm,bcm7211-pcie # Broadcom STB version of RPi4

          - brcm,bcm7278-pcie # Broadcom 7278 Arm

          - brcm,bcm7216-pcie # Broadcom 7216 Arm
@@ -63,15 +64,6 @@ properties: 


  aspm-no-l0s: true



  resets:

    description: for "brcm,bcm7216-pcie", must be a valid reset

      phandle pointing to the RESCAL reset controller provider node.

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



  reset-names:

    items:

      - const: rescal



  brcm,scb-sizes:

    description: u64 giving the 64bit PCIe memory

      viewport size of a memory controller.  There may be up to
@@ -98,12 +90,39 @@ required: 


allOf:

  - $ref: /schemas/pci/pci-bus.yaml#

  - if:

      properties:

        compatible:

          contains:

            const: brcm,bcm4908-pcie

    then:

      properties:

        resets:

          items:

            - description: reset controller handling the PERST# signal



        reset-names:

          items:

            - const: perst



      required:

        - resets

        - reset-names

  - if:

      properties:

        compatible:

          contains:

            const: brcm,bcm7216-pcie

    then:

      properties:

        resets:

          items:

            - description: phandle pointing to the RESCAL reset controller



        reset-names:

          items:

            - const: rescal



      required:

        - resets

        - reset-names