1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/phy/phy-cadence-sierra.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cadence Sierra PHY
10 This binding describes the Cadence Sierra PHY. Sierra PHY supports multilink
11 multiprotocol combinations including protocols such as PCIe, USB etc.
14 - Swapnil Jakhade <sjakhade@cadence.com>
15 - Yuti Amonkar <yamonkar@cadence.com>
35 - description: Sierra PHY reset.
36 - description: Sierra APB reset. This is optional.
47 Offset of the Sierra PHY configuration registers.
59 - const: cmn_refclk_dig_div
60 - const: cmn_refclk1_dig_div
67 A boolean property whose presence indicates that the PHY registers will be
68 configured by hardware. If not present, all sub-node optional properties
75 Each group of PHY lanes with a single master lane should be represented as
76 a sub-node. Note that the actual configuration of each lane is determined
77 by hardware strapping, and must match the configuration specified here.
81 The master lane number. This is the lowest numbered lane in the lane group.
89 Contains list of resets, one per lane, to get all the link lanes out of reset.
96 Specifies the type of PHY for which the group of PHY lanes is used.
97 Refer include/dt-bindings/phy/phy.h. Constants from the header should be used.
98 $ref: /schemas/types.yaml#/definitions/uint32
103 Number of lanes in this group. The group is made up of consecutive lanes.
104 $ref: /schemas/types.yaml#/definitions/uint32
110 Specifies the Spread Spectrum Clocking mode used. It can be NO_SSC,
111 EXTERNAL_SSC or INTERNAL_SSC.
112 Refer include/dt-bindings/phy/phy-cadence.h for the constants to be used.
113 $ref: /schemas/types.yaml#/definitions/uint32
122 additionalProperties: false
132 additionalProperties: false
136 #include <dt-bindings/phy/phy.h>
139 #address-cells = <2>;
142 sierra-phy@fd240000 {
143 compatible = "cdns,sierra-phy-t0";
144 reg = <0x0 0xfd240000 0x0 0x40000>;
145 resets = <&phyrst 0>, <&phyrst 1>;
146 reset-names = "sierra_reset", "sierra_apb";
147 clocks = <&cmn_refclk_dig_div>, <&cmn_refclk1_dig_div>;
148 clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
149 #address-cells = <1>;
153 resets = <&phyrst 2>;
154 cdns,num-lanes = <2>;
156 cdns,phy-type = <PHY_TYPE_PCIE>;
160 resets = <&phyrst 4>;
161 cdns,num-lanes = <1>;
163 cdns,phy-type = <PHY_TYPE_PCIE>;