xref: /linux/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-pcie-phy.yaml (revision 4f2c0a4acffbec01079c28f839422e64ddeff004) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/phy/qcom,msm8996-qmp-pcie-phy.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm QMP PHY controller (MSM8996 PCIe)
8
9maintainers:
10  - Vinod Koul <vkoul@kernel.org>
11
12description:
13  QMP PHY controller supports physical layer functionality for a number of
14  controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
15
16properties:
17  compatible:
18    const: qcom,msm8996-qmp-pcie-phy
19
20  reg:
21    items:
22      - description: serdes
23
24  "#address-cells":
25    enum: [ 1, 2 ]
26
27  "#size-cells":
28    enum: [ 1, 2 ]
29
30  ranges: true
31
32  clocks:
33    maxItems: 3
34
35  clock-names:
36    items:
37      - const: aux
38      - const: cfg_ahb
39      - const: ref
40
41  resets:
42    maxItems: 3
43
44  reset-names:
45    items:
46      - const: phy
47      - const: common
48      - const: cfg
49
50  vdda-phy-supply: true
51
52  vdda-pll-supply: true
53
54  vddp-ref-clk-supply: true
55
56patternProperties:
57  "^phy@[0-9a-f]+$":
58    type: object
59    description: one child node per PHY provided by this block
60    properties:
61      reg:
62        items:
63          - description: TX
64          - description: RX
65          - description: PCS
66
67      clocks:
68        items:
69          - description: PIPE clock
70
71      clock-names:
72        deprecated: true
73        items:
74          - enum:
75              - pipe0
76              - pipe1
77              - pipe2
78
79      resets:
80        items:
81          - description: PHY reset
82
83      reset-names:
84        deprecated: true
85        items:
86          - enum:
87              - lane0
88              - lane1
89              - lane2
90
91      "#clock-cells":
92        const: 0
93
94      clock-output-names:
95        maxItems: 1
96
97      "#phy-cells":
98        const: 0
99
100    required:
101      - reg
102      - clocks
103      - resets
104      - "#clock-cells"
105      - clock-output-names
106      - "#phy-cells"
107
108    additionalProperties: false
109
110required:
111  - compatible
112  - reg
113  - "#address-cells"
114  - "#size-cells"
115  - ranges
116  - clocks
117  - clock-names
118  - resets
119  - reset-names
120  - vdda-phy-supply
121  - vdda-pll-supply
122
123additionalProperties: false
124
125examples:
126  - |
127    #include <dt-bindings/clock/qcom,gcc-msm8996.h>
128    pcie_phy: phy-wrapper@34000 {
129        compatible = "qcom,msm8996-qmp-pcie-phy";
130        reg = <0x34000 0x488>;
131        #address-cells = <1>;
132        #size-cells = <1>;
133        ranges = <0x0 0x34000 0x4000>;
134
135        clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
136                 <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
137                 <&gcc GCC_PCIE_CLKREF_CLK>;
138        clock-names = "aux", "cfg_ahb", "ref";
139
140        resets = <&gcc GCC_PCIE_PHY_BCR>,
141                 <&gcc GCC_PCIE_PHY_COM_BCR>,
142                 <&gcc GCC_PCIE_PHY_COM_NOCSR_BCR>;
143        reset-names = "phy", "common", "cfg";
144
145        vdda-phy-supply = <&vreg_l28a_0p925>;
146        vdda-pll-supply = <&vreg_l12a_1p8>;
147
148        pciephy_0: phy@1000 {
149            reg = <0x1000 0x130>,
150                  <0x1200 0x200>,
151                  <0x1400 0x1dc>;
152
153            clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
154            resets = <&gcc GCC_PCIE_0_PHY_BCR>;
155
156            #clock-cells = <0>;
157            clock-output-names = "pcie_0_pipe_clk_src";
158
159            #phy-cells = <0>;
160        };
161
162        pciephy_1: phy@2000 {
163            reg = <0x2000 0x130>,
164                  <0x2200 0x200>,
165                  <0x2400 0x1dc>;
166
167            clocks = <&gcc GCC_PCIE_1_PIPE_CLK>;
168            resets = <&gcc GCC_PCIE_1_PHY_BCR>;
169
170            #clock-cells = <0>;
171            clock-output-names = "pcie_1_pipe_clk_src";
172
173            #phy-cells = <0>;
174        };
175
176        pciephy_2: phy@3000 {
177            reg = <0x3000 0x130>,
178                  <0x3200 0x200>,
179                  <0x3400 0x1dc>;
180
181            clocks = <&gcc GCC_PCIE_2_PIPE_CLK>;
182            resets = <&gcc GCC_PCIE_2_PHY_BCR>;
183
184            #clock-cells = <0>;
185            clock-output-names = "pcie_2_pipe_clk_src";
186
187            #phy-cells = <0>;
188        };
189    };
190