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-Cadence Sierra PHY
------------------------
-
-Required properties:
-- compatible: Must be "cdns,sierra-phy-t0" for Sierra in Cadence platform
- Must be "ti,sierra-phy-t0" for Sierra in TI's J721E SoC.
-- resets: Must contain an entry for each in reset-names.
- See ../reset/reset.txt for details.
-- reset-names: Must include "sierra_reset" and "sierra_apb".
- "sierra_reset" must control the reset line to the PHY.
- "sierra_apb" must control the reset line to the APB PHY
- interface ("sierra_apb" is optional).
-- reg: register range for the PHY.
-- #address-cells: Must be 1
-- #size-cells: Must be 0
-
-Optional properties:
-- clocks: Must contain an entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must contain "cmn_refclk_dig_div" and
- "cmn_refclk1_dig_div" for configuring the frequency of
- the clock to the lanes. "phy_clk" is deprecated.
-- cdns,autoconf: A boolean property whose presence indicates that the
- PHY registers will be configured by hardware. If not
- present, all sub-node optional properties must be
- provided.
-
-Sub-nodes:
- Each group of PHY lanes with a single master lane should be represented as
- a sub-node. Note that the actual configuration of each lane is determined by
- hardware strapping, and must match the configuration specified here.
-
-Sub-node required properties:
-- #phy-cells: Generic PHY binding; must be 0.
-- reg: The master lane number. This is the lowest numbered lane
- in the lane group.
-- resets: Must contain one entry which controls the reset line for the
- master lane of the sub-node.
- See ../reset/reset.txt for details.
-
-Sub-node optional properties:
-- cdns,num-lanes: Number of lanes in this group. From 1 to 4. The
- group is made up of consecutive lanes.
-- cdns,phy-type: Can be PHY_TYPE_PCIE or PHY_TYPE_USB3, depending on
- configuration of lanes.
-
-Example:
- pcie_phy4: pcie-phy@fd240000 {
- compatible = "cdns,sierra-phy-t0";
- reg = <0x0 0xfd240000 0x0 0x40000>;
- resets = <&phyrst 0>, <&phyrst 1>;
- reset-names = "sierra_reset", "sierra_apb";
- clocks = <&phyclock>;
- clock-names = "phy_clk";
- #address-cells = <1>;
- #size-cells = <0>;
- pcie0_phy0: pcie-phy@0 {
- reg = <0>;
- resets = <&phyrst 2>;
- cdns,num-lanes = <2>;
- #phy-cells = <0>;
- cdns,phy-type = <PHY_TYPE_PCIE>;
- };
- pcie0_phy1: pcie-phy@2 {
- reg = <2>;
- resets = <&phyrst 4>;
- cdns,num-lanes = <1>;
- #phy-cells = <0>;
- cdns,phy-type = <PHY_TYPE_PCIE>;
- };