On 7/5/2018 4:34 PM, Rob Herring wrote:
On Wed, Jul 04, 2018 at 11:22:12AM -0700, 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@xxxxxxxxxxxx> --- .../devicetree/bindings/phy/brcm,sr-pcie-phy.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 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..5a13511 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt @@ -0,0 +1,41 @@ +Broadcom Stingray PCIe PHY + +Required properties: +- compatible: must be "brcm,sr-pcie-phy" +- reg: base address and length of the PCIe SS register space +- 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 {Needs a unit address. With that, Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Yes, will address that in v4 with your Reviewed-by added. Thanks, Ray
+ compatible = "brcm,sr-pcie-phy"; + reg = <0 0x40000000 0 0x800>; + 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"; + }; -- 2.1.4
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