From ce8d5dbfd64f6ca84e2fe55a0066ec8b22601567 Mon Sep 17 00:00:00 2001 From: Pramod Kumar Date: Fri, 10 Jun 2016 11:03:47 +0530 Subject: [PATCH] binding: mdio-mux: Add DT binding doc for Broadcom MDIO bus multiplexer Add DT binding doc for Broadcom MDIO bus multiplexer driver. Reviewed-by: Andrew Lunn Signed-off-by: Pramod Kumar Reviewed-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: David S. Miller --- .../bindings/net/brcm,mdio-mux-iproc.txt | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt diff --git a/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt new file mode 100644 index 000000000000..dfe287a5d6f2 --- /dev/null +++ b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt @@ -0,0 +1,59 @@ +Properties for an MDIO bus multiplexer found in Broadcom iProc based SoCs. + +This MDIO bus multiplexer defines buses that could be internal as well as +external to SoCs and could accept MDIO transaction compatible to C-22 or +C-45 Clause. When child bus is selected, one needs to select these two +properties as well to generate desired MDIO transaction on appropriate bus. + +Required properties in addition to the generic multiplexer properties: + +MDIO multiplexer node: +- compatible: brcm,mdio-mux-iproc. + +Every non-ethernet PHY requires a compatible so that it could be probed based +on this compatible string. + +Additional information regarding generic multiplexer properties can be found +at- Documentation/devicetree/bindings/net/mdio-mux.txt + + +for example: + mdio_mux_iproc: mdio-mux@6602023c { + compatible = "brcm,mdio-mux-iproc"; + reg = <0x6602023c 0x14>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + + pci_phy0: pci-phy@0 { + compatible = "brcm,ns2-pcie-phy"; + reg = <0x0>; + #phy-cells = <0>; + }; + }; + + mdio@7 { + reg = <0x7>; + #address-cells = <1>; + #size-cells = <0>; + + pci_phy1: pci-phy@0 { + compatible = "brcm,ns2-pcie-phy"; + reg = <0x0>; + #phy-cells = <0>; + }; + }; + mdio@10 { + reg = <0x10>; + #address-cells = <1>; + #size-cells = <0>; + + gphy0: eth-phy@10 { + reg = <0x10>; + }; + }; + }; -- 2.20.1