1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/mfd/stericsson,db8500-prcmu.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: ST-Ericsson DB8500 PRCMU - Power Reset and Control Management Unit 8 9maintainers: 10 - Linus Walleij <linus.walleij@linaro.org> 11 12description: 13 The DB8500 Power Reset and Control Management Unit is an XP70 8-bit 14 microprocessor that is embedded in the always-on power domain of the 15 DB8500 SoCs to manage the low power states, powering up and down parts 16 of the silicon, and controlling reset of different IP blocks. 17 18properties: 19 $nodename: 20 pattern: '^prcmu@[0-9a-f]+$' 21 22 compatible: 23 description: The device is compatible both to the device-specific 24 compatible "stericsson,db8500-prcmu" and "syscon". The latter 25 compatible is needed for the device to be exposed as a system 26 controller so that arbitrary registers can be access by 27 different operating system components. 28 items: 29 - const: stericsson,db8500-prcmu 30 - const: syscon 31 32 reg: 33 items: 34 - description: Main PRCMU register area 35 - description: PRCMU TCPM register area 36 - description: PRCMU TCDM register area 37 38 reg-names: 39 items: 40 - const: prcmu 41 - const: prcmu-tcpm 42 - const: prcmu-tcdm 43 44 interrupts: 45 maxItems: 1 46 47 '#address-cells': 48 const: 1 49 50 '#size-cells': 51 const: 1 52 53 ranges: true 54 55 interrupt-controller: true 56 57 '#interrupt-cells': 58 const: 2 59 60 db8500-prcmu-regulators: 61 description: Node describing the DB8500 regulators. These are mainly 62 power rails inside the silicon but some of those are also routed 63 out to external pins. 64 type: object 65 66 properties: 67 compatible: 68 const: stericsson,db8500-prcmu-regulator 69 70 db8500_vape: 71 description: The voltage for the application processor, the 72 main voltage domain for the chip. 73 type: object 74 $ref: ../regulator/regulator.yaml# 75 unevaluatedProperties: false 76 77 db8500_varm: 78 description: The voltage for the ARM Cortex-A9 CPU. 79 type: object 80 $ref: ../regulator/regulator.yaml# 81 unevaluatedProperties: false 82 83 db8500_vmodem: 84 description: The voltage for the modem subsystem. 85 type: object 86 $ref: ../regulator/regulator.yaml# 87 unevaluatedProperties: false 88 89 db8500_vpll: 90 description: The voltage for the phase locked loop clocks. 91 type: object 92 $ref: ../regulator/regulator.yaml# 93 unevaluatedProperties: false 94 95 db8500_vsmps1: 96 description: Also known as VIO12, is a step-down voltage regulator 97 for 1.2V I/O. SMPS means System Management Power Source. 98 type: object 99 $ref: ../regulator/regulator.yaml# 100 unevaluatedProperties: false 101 102 db8500_vsmps2: 103 description: Also known as VIO18, is a step-down voltage regulator 104 for 1.8V I/O. SMPS means System Management Power Source. 105 type: object 106 $ref: ../regulator/regulator.yaml# 107 unevaluatedProperties: false 108 109 db8500_vsmps3: 110 description: This is a step-down voltage regulator 111 for 0.87 thru 1.875V I/O. SMPS means System Management Power Source. 112 type: object 113 $ref: ../regulator/regulator.yaml# 114 unevaluatedProperties: false 115 116 db8500_vrf1: 117 description: RF transceiver voltage regulator. 118 type: object 119 $ref: ../regulator/regulator.yaml# 120 unevaluatedProperties: false 121 122 db8500_sva_mmdsp: 123 description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP) 124 voltage regulator. This is the voltage for the accelerator DSP 125 for video encoding and decoding. 126 type: object 127 $ref: ../regulator/regulator.yaml# 128 unevaluatedProperties: false 129 130 db8500_sva_mmdsp_ret: 131 description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP) 132 voltage regulator for retention mode. 133 type: object 134 $ref: ../regulator/regulator.yaml# 135 unevaluatedProperties: false 136 137 db8500_sva_pipe: 138 description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP) 139 voltage regulator for the data pipe. 140 type: object 141 $ref: ../regulator/regulator.yaml# 142 unevaluatedProperties: false 143 144 db8500_sia_mmdsp: 145 description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP) 146 voltage regulator. This is the voltage for the accelerator DSP 147 for image encoding and decoding. 148 type: object 149 $ref: ../regulator/regulator.yaml# 150 unevaluatedProperties: false 151 152 db8500_sia_mmdsp_ret: 153 description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP) 154 voltage regulator for retention mode. 155 type: object 156 $ref: ../regulator/regulator.yaml# 157 unevaluatedProperties: false 158 159 db8500_sia_pipe: 160 description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP) 161 voltage regulator for the data pipe. 162 type: object 163 $ref: ../regulator/regulator.yaml# 164 unevaluatedProperties: false 165 166 db8500_sga: 167 description: Smart Graphics Accelerator (SGA) voltage regulator. 168 This is in effect controlling the power to the MALI400 3D 169 accelerator block. 170 type: object 171 $ref: ../regulator/regulator.yaml# 172 unevaluatedProperties: false 173 174 db8500_b2r2_mcde: 175 description: Blit Blend Rotate and Rescale (B2R2), and Multi-Channel 176 Display Engine (MCDE) voltage regulator. These are two graphics 177 blocks. 178 type: object 179 $ref: ../regulator/regulator.yaml# 180 unevaluatedProperties: false 181 182 db8500_esram12: 183 description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator. 184 type: object 185 $ref: ../regulator/regulator.yaml# 186 unevaluatedProperties: false 187 188 db8500_esram12_ret: 189 description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator for 190 retention mode. 191 type: object 192 $ref: ../regulator/regulator.yaml# 193 unevaluatedProperties: false 194 195 db8500_esram34: 196 description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator. 197 type: object 198 $ref: ../regulator/regulator.yaml# 199 unevaluatedProperties: false 200 201 db8500_esram34_ret: 202 description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator for 203 retention mode. 204 type: object 205 $ref: ../regulator/regulator.yaml# 206 unevaluatedProperties: false 207 208 required: 209 - compatible 210 - db8500_vape 211 - db8500_varm 212 - db8500_vmodem 213 - db8500_vpll 214 - db8500_vsmps1 215 - db8500_vsmps2 216 - db8500_vsmps3 217 - db8500_vrf1 218 - db8500_sva_mmdsp 219 - db8500_sva_mmdsp_ret 220 - db8500_sva_pipe 221 - db8500_sia_mmdsp 222 - db8500_sia_mmdsp_ret 223 - db8500_sia_pipe 224 - db8500_sga 225 - db8500_b2r2_mcde 226 - db8500_esram12 227 - db8500_esram12_ret 228 - db8500_esram34 229 - db8500_esram34_ret 230 231 additionalProperties: false 232 233patternProperties: 234 "^thermal@[0-9a-f]+$": 235 description: Node describing the DB8500 thermal control functions. 236 This binds to an operating system driver that monitors the 237 temperature of the SoC. 238 type: object 239 240 properties: 241 compatible: 242 const: stericsson,db8500-thermal 243 244 reg: 245 maxItems: 1 246 247 interrupts: 248 items: 249 - description: Hotmon low interrupt (falling temperature) 250 - description: Hotmon high interrupt (rising temperature) 251 252 interrupt-names: 253 items: 254 - const: IRQ_HOTMON_LOW 255 - const: IRQ_HOTMON_HIGH 256 257 '#thermal-sensor-cells': 258 const: 0 259 260 additionalProperties: false 261 262 "^prcmu-timer-4@[0-9a-f]+$": 263 description: Node describing the externally visible timer 4 in the 264 PRCMU block. This timer is interesting to the operating system 265 since even thought it has a very low resolution (32768 Hz) it is 266 always on, and thus provides a consistent monotonic timeline for 267 the system. 268 type: object 269 270 properties: 271 compatible: 272 const: stericsson,db8500-prcmu-timer-4 273 274 reg: 275 maxItems: 1 276 277 additionalProperties: false 278 279 "^ab850[05]$": 280 description: Node describing the Analog Baseband 8500 mixed-signals 281 ASIC AB8500 and subcomponents. The AB8500 is accessed through the 282 PRCMU and hence it appears here. This component has a separate 283 set of devicetree bindings. The AB8505 is a newer version of the 284 same ASIC. 285 type: object 286 $ref: stericsson,ab8500.yaml# 287 288required: 289 - compatible 290 - reg 291 - '#address-cells' 292 - '#size-cells' 293 - ranges 294 - interrupts 295 - interrupt-controller 296 - '#interrupt-cells' 297 - db8500-prcmu-regulators 298 299additionalProperties: false 300