Messages in this thread | | | Subject | Re: [PATCH v2 1/2] dt-bindings: phy: Add binding doc for Stingray PCIe PHY | From | Kishon Vijay Abraham I <> | Date | Fri, 29 Jun 2018 12:06:59 +0530 |
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+Rob and device tree list
On Thursday 21 June 2018 05:48 AM, Ray Jui wrote: > Add binding document for Stingray PCIe PHYs for both PAXB and PAXC based > root complex > > Signed-off-by: Ray Jui <ray.jui@broadcom.com> > Reviewed-by: Scott Branden <scott.branden@broadcom.com> > --- > .../devicetree/bindings/phy/brcm,sr-pcie-phy.txt | 39 ++++++++++++++++++++++ > 1 file changed, 39 insertions(+) > create mode 100644 Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt > > diff --git a/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt > new file mode 100644 > index 0000000..c2eede6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt > @@ -0,0 +1,39 @@ > +Broadcom Stingray PCIe PHY > + > +Required properties: > +- compatible: must be "brcm,sr-pcie-phy" > +- brcm,sr-cdru: phandle to the CDRU syscon node > +- brcm,sr-mhb: phandle to the MHB syscon node > +- #phy-cells: Must be 1, denotes the PHY index > + > +For PAXB based root complex, one can have a configuration of up to 8 PHYs > +PHY index goes from 0 to 7 > + > +For the internal PAXC based root complex, PHY index is always 8 > + > +Example: > + mhb: syscon@60401000 { > + compatible = "brcm,sr-mhb", "syscon"; > + reg = <0 0x60401000 0 0x38c>; > + }; > + > + cdru: syscon@6641d000 { > + compatible = "brcm,sr-cdru", "syscon"; > + reg = <0 0x6641d000 0 0x400>; > + }; > + > + pcie_phy: phy { > + compatible = "brcm,sr-pcie-phy"; > + brcm,sr-cdru = <&cdru>; > + brcm,sr-mhb = <&mhb>; > + #phy-cells = <1>; > + }; > + > + /* users of the PCIe PHY */ > + > + pcie0: pcie@48000000 { > + ... > + ... > + phys = <&pcie_phy 0>; > + phy-names = "pcie-phy"; > + }; >
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