tesla,fsd-clock.yaml (5249B)
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 15 (CMU), which generates clocks for various inteernal SoC blocks. 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...