1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/phy/samsung,ufs-phy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Samsung SoC series UFS PHY Device Tree Bindings
8
9 maintainers:
10 - Alim Akhtar <alim.akhtar@samsung.com>
11
12 properties:
13 "#phy-cells":
14 const: 0
15
16 compatible:
17 enum:
18 - samsung,exynos7-ufs-phy
19 - samsung,exynosautov9-ufs-phy
20 - tesla,fsd-ufs-phy
21
22 reg:
23 maxItems: 1
24
25 reg-names:
26 items:
27 - const: phy-pma
28
29 clocks:
30 items:
31 - description: PLL reference clock
32 - description: symbol clock for input symbol ( rx0-ch0 symbol clock)
33 - description: symbol clock for input symbol ( rx1-ch1 symbol clock)
34 - description: symbol clock for output symbol ( tx0 symbol clock)
35
36 clock-names:
37 items:
38 - const: ref_clk
39 - const: rx1_symbol_clk
40 - const: rx0_symbol_clk
41 - const: tx0_symbol_clk
42
43 samsung,pmu-syscon:
44 $ref: '/schemas/types.yaml#/definitions/phandle-array'
45 maxItems: 1
46 items:
47 minItems: 1
48 items:
49 - description: phandle for PMU system controller interface, used to
50 control pmu registers bits for ufs m-phy
51 - description: offset of the pmu control register
52 description:
53 It can be phandle/offset pair. The second cell which can represent an
54 offset is optional.
55
56 required:
57 - "#phy-cells"
58 - compatible
59 - reg
60 - reg-names
61 - clocks
62 - clock-names
63 - samsung,pmu-syscon
64
65 additionalProperties: false
66
67 examples:
68 - |
69 #include <dt-bindings/clock/exynos7-clk.h>
70
71 ufs_phy: ufs-phy@15571800 {
72 compatible = "samsung,exynos7-ufs-phy";
73 reg = <0x15571800 0x240>;
74 reg-names = "phy-pma";
75 samsung,pmu-syscon = <&pmu_system_controller>;
76 #phy-cells = <0>;
77 clocks = <&clock_fsys1 SCLK_COMBO_PHY_EMBEDDED_26M>,
78 <&clock_fsys1 PHYCLK_UFS20_RX1_SYMBOL_USER>,
79 <&clock_fsys1 PHYCLK_UFS20_RX0_SYMBOL_USER>,
80 <&clock_fsys1 PHYCLK_UFS20_TX0_SYMBOL_USER>;
81 clock-names = "ref_clk", "rx1_symbol_clk",
82 "rx0_symbol_clk", "tx0_symbol_clk";
83
84 };
85 ...
Cache object: c19ceeb41842eeef5fd9e09813135aaf
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