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git01.mediatek.com / filogic / uboot / 413c7b300d534f242ae6562f4728f028520f203e / . / dts / upstream / Bindings / clock / tesla,fsd-clock.yaml
blob: b370a10a23a64cffda2e277e01363abca416ba3f [file] [log] [blame]
Tom Rini53633a82024-02-29 12:33:36 -0500[diff] [blame]1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Tesla FSD (Full Self-Driving) SoC clock controller
8
9maintainers:
10 - Alim Akhtar <alim.akhtar@samsung.com>
11 - linux-fsd@tesla.com
12
13description: |
14 FSD clock controller consist of several clock management unit
Tom Rini6bb92fc2024-05-20 09:54:58 -0600[diff] [blame]15 (CMU), which generates clocks for various internal SoC blocks.
Tom Rini53633a82024-02-29 12:33:36 -0500[diff] [blame]16 The root clock comes from external OSC clock (24 MHz).
17
18 All available clocks are defined as preprocessor macros in
19 'dt-bindings/clock/fsd-clk.h' header.
20
21properties:
22 compatible:
23 enum:
24 - tesla,fsd-clock-cmu
25 - tesla,fsd-clock-imem
26 - tesla,fsd-clock-peric
27 - tesla,fsd-clock-fsys0
28 - tesla,fsd-clock-fsys1
29 - tesla,fsd-clock-mfc
30 - tesla,fsd-clock-cam_csi
31
32 clocks:
33 minItems: 1
34 maxItems: 6
35
36 clock-names:
37 minItems: 1
38 maxItems: 6
39
40 "#clock-cells":
41 const: 1
42
43 reg:
44 maxItems: 1
45
46allOf:
47 - if:
48 properties:
49 compatible:
50 contains:
51 const: tesla,fsd-clock-cmu
52 then:
53 properties:
54 clocks:
55 items:
56 - description: External reference clock (24 MHz)
57 clock-names:
58 items:
59 - const: fin_pll
60
61 - if:
62 properties:
63 compatible:
64 contains:
65 const: tesla,fsd-clock-imem
66 then:
67 properties:
68 clocks:
69 items:
70 - description: External reference clock (24 MHz)
71 - description: IMEM TCU clock (from CMU_CMU)
72 - description: IMEM bus clock (from CMU_CMU)
73 - description: IMEM DMA clock (from CMU_CMU)
74 clock-names:
75 items:
76 - const: fin_pll
77 - const: dout_cmu_imem_tcuclk
78 - const: dout_cmu_imem_aclk
79 - const: dout_cmu_imem_dmaclk
80
81 - if:
82 properties:
83 compatible:
84 contains:
85 const: tesla,fsd-clock-peric
86 then:
87 properties:
88 clocks:
89 items:
90 - description: External reference clock (24 MHz)
91 - description: Shared0 PLL div4 clock (from CMU_CMU)
92 - description: PERIC shared1 div36 clock (from CMU_CMU)
93 - description: PERIC shared0 div3 TBU clock (from CMU_CMU)
94 - description: PERIC shared0 div20 clock (from CMU_CMU)
95 - description: PERIC shared1 div4 DMAclock (from CMU_CMU)
96 clock-names:
97 items:
98 - const: fin_pll
99 - const: dout_cmu_pll_shared0_div4
100 - const: dout_cmu_peric_shared1div36
101 - const: dout_cmu_peric_shared0div3_tbuclk
102 - const: dout_cmu_peric_shared0div20
103 - const: dout_cmu_peric_shared1div4_dmaclk
104
105 - if:
106 properties:
107 compatible:
108 contains:
109 const: tesla,fsd-clock-fsys0
110 then:
111 properties:
112 clocks:
113 items:
114 - description: External reference clock (24 MHz)
115 - description: Shared0 PLL div6 clock (from CMU_CMU)
116 - description: FSYS0 shared1 div4 clock (from CMU_CMU)
117 - description: FSYS0 shared0 div4 clock (from CMU_CMU)
118 clock-names:
119 items:
120 - const: fin_pll
121 - const: dout_cmu_pll_shared0_div6
122 - const: dout_cmu_fsys0_shared1div4
123 - const: dout_cmu_fsys0_shared0div4
124
125 - if:
126 properties:
127 compatible:
128 contains:
129 const: tesla,fsd-clock-fsys1
130 then:
131 properties:
132 clocks:
133 items:
134 - description: External reference clock (24 MHz)
135 - description: FSYS1 shared0 div8 clock (from CMU_CMU)
136 - description: FSYS1 shared0 div4 clock (from CMU_CMU)
137 clock-names:
138 items:
139 - const: fin_pll
140 - const: dout_cmu_fsys1_shared0div8
141 - const: dout_cmu_fsys1_shared0div4
142
143 - if:
144 properties:
145 compatible:
146 contains:
147 const: tesla,fsd-clock-mfc
148 then:
149 properties:
150 clocks:
151 items:
152 - description: External reference clock (24 MHz)
153 clock-names:
154 items:
155 - const: fin_pll
156
157 - if:
158 properties:
159 compatible:
160 contains:
161 const: tesla,fsd-clock-cam_csi
162 then:
163 properties:
164 clocks:
165 items:
166 - description: External reference clock (24 MHz)
167 clock-names:
168 items:
169 - const: fin_pll
170
171required:
172 - compatible
173 - "#clock-cells"
174 - clocks
175 - clock-names
176 - reg
177
178additionalProperties: false
179
180examples:
181 # Clock controller node for CMU_FSYS1
182 - |
183 #include <dt-bindings/clock/fsd-clk.h>
184
185 clock_fsys1: clock-controller@16810000 {
186 compatible = "tesla,fsd-clock-fsys1";
187 reg = <0x16810000 0x3000>;
188 #clock-cells = <1>;
189
190 clocks = <&fin_pll>,
191 <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV8>,
192 <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV4>;
193 clock-names = "fin_pll",
194 "dout_cmu_fsys1_shared0div8",
195 "dout_cmu_fsys1_shared0div4";
196 };
197
198...