Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ce8d5dbf authored by Pramod Kumar's avatar Pramod Kumar Committed by David S. Miller
Browse files

binding: mdio-mux: Add DT binding doc for Broadcom MDIO bus multiplexer



Add DT binding doc for Broadcom MDIO bus multiplexer driver.

Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarPramod Kumar <pramod.kumar@broadcom.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6deb2087
Loading
Loading
Loading
Loading
+59 −0
Original line number Diff line number Diff line
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>;
				};
			};
		};