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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 | /* SPDX-License-Identifier: GPL-2.0 */ /* * This file is part of STM32 ADC driver * * Copyright (C) 2016, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. * */ #ifndef __STM32_ADC_H #define __STM32_ADC_H /* * STM32 - ADC global register map * ________________________________________________________ * | Offset | Register | * -------------------------------------------------------- * | 0x000 | Master ADC1 | * -------------------------------------------------------- * | 0x100 | Slave ADC2 | * -------------------------------------------------------- * | 0x200 | Slave ADC3 | * -------------------------------------------------------- * | 0x300 | Master & Slave common regs | * -------------------------------------------------------- */ /* Maximum ADC instances number per ADC block for all supported SoCs */ #define STM32_ADC_MAX_ADCS 3 #define STM32_ADC_OFFSET 0x100 #define STM32_ADCX_COMN_OFFSET 0x300 /* STM32F4 - Registers for each ADC instance */ #define STM32F4_ADC_SR 0x00 #define STM32F4_ADC_CR1 0x04 #define STM32F4_ADC_CR2 0x08 #define STM32F4_ADC_SMPR1 0x0C #define STM32F4_ADC_SMPR2 0x10 #define STM32F4_ADC_HTR 0x24 #define STM32F4_ADC_LTR 0x28 #define STM32F4_ADC_SQR1 0x2C #define STM32F4_ADC_SQR2 0x30 #define STM32F4_ADC_SQR3 0x34 #define STM32F4_ADC_JSQR 0x38 #define STM32F4_ADC_JDR1 0x3C #define STM32F4_ADC_JDR2 0x40 #define STM32F4_ADC_JDR3 0x44 #define STM32F4_ADC_JDR4 0x48 #define STM32F4_ADC_DR 0x4C /* STM32F4 - common registers for all ADC instances: 1, 2 & 3 */ #define STM32F4_ADC_CSR (STM32_ADCX_COMN_OFFSET + 0x00) #define STM32F4_ADC_CCR (STM32_ADCX_COMN_OFFSET + 0x04) /* STM32F4_ADC_SR - bit fields */ #define STM32F4_OVR BIT(5) #define STM32F4_STRT BIT(4) #define STM32F4_EOC BIT(1) /* STM32F4_ADC_CR1 - bit fields */ #define STM32F4_OVRIE BIT(26) #define STM32F4_RES_SHIFT 24 #define STM32F4_RES_MASK GENMASK(25, 24) #define STM32F4_SCAN BIT(8) #define STM32F4_EOCIE BIT(5) /* STM32F4_ADC_CR2 - bit fields */ #define STM32F4_SWSTART BIT(30) #define STM32F4_EXTEN_SHIFT 28 #define STM32F4_EXTEN_MASK GENMASK(29, 28) #define STM32F4_EXTSEL_SHIFT 24 #define STM32F4_EXTSEL_MASK GENMASK(27, 24) #define STM32F4_EOCS BIT(10) #define STM32F4_DDS BIT(9) #define STM32F4_DMA BIT(8) #define STM32F4_ADON BIT(0) /* STM32F4_ADC_CSR - bit fields */ #define STM32F4_OVR3 BIT(21) #define STM32F4_EOC3 BIT(17) #define STM32F4_OVR2 BIT(13) #define STM32F4_EOC2 BIT(9) #define STM32F4_OVR1 BIT(5) #define STM32F4_EOC1 BIT(1) /* STM32F4_ADC_CCR - bit fields */ #define STM32F4_ADC_ADCPRE_SHIFT 16 #define STM32F4_ADC_ADCPRE_MASK GENMASK(17, 16) /* STM32H7 - Registers for each ADC instance */ #define STM32H7_ADC_ISR 0x00 #define STM32H7_ADC_IER 0x04 #define STM32H7_ADC_CR 0x08 #define STM32H7_ADC_CFGR 0x0C #define STM32H7_ADC_SMPR1 0x14 #define STM32H7_ADC_SMPR2 0x18 #define STM32H7_ADC_PCSEL 0x1C #define STM32H7_ADC_SQR1 0x30 #define STM32H7_ADC_SQR2 0x34 #define STM32H7_ADC_SQR3 0x38 #define STM32H7_ADC_SQR4 0x3C #define STM32H7_ADC_DR 0x40 #define STM32H7_ADC_DIFSEL 0xC0 #define STM32H7_ADC_CALFACT 0xC4 #define STM32H7_ADC_CALFACT2 0xC8 /* STM32MP1 - ADC2 instance option register */ #define STM32MP1_ADC2_OR 0xD0 /* STM32MP1 - Identification registers */ #define STM32MP1_ADC_HWCFGR0 0x3F0 #define STM32MP1_ADC_VERR 0x3F4 #define STM32MP1_ADC_IPDR 0x3F8 #define STM32MP1_ADC_SIDR 0x3FC /* STM32MP13 - Registers for each ADC instance */ #define STM32MP13_ADC_DIFSEL 0xB0 #define STM32MP13_ADC_CALFACT 0xB4 #define STM32MP13_ADC2_OR 0xC8 /* STM32H7 - common registers for all ADC instances */ #define STM32H7_ADC_CSR (STM32_ADCX_COMN_OFFSET + 0x00) #define STM32H7_ADC_CCR (STM32_ADCX_COMN_OFFSET + 0x08) /* STM32H7_ADC_ISR - bit fields */ #define STM32MP1_VREGREADY BIT(12) #define STM32H7_OVR BIT(4) #define STM32H7_EOC BIT(2) #define STM32H7_ADRDY BIT(0) /* STM32H7_ADC_IER - bit fields */ #define STM32H7_OVRIE STM32H7_OVR #define STM32H7_EOCIE STM32H7_EOC /* STM32H7_ADC_CR - bit fields */ #define STM32H7_ADCAL BIT(31) #define STM32H7_ADCALDIF BIT(30) #define STM32H7_DEEPPWD BIT(29) #define STM32H7_ADVREGEN BIT(28) #define STM32H7_LINCALRDYW6 BIT(27) #define STM32H7_LINCALRDYW5 BIT(26) #define STM32H7_LINCALRDYW4 BIT(25) #define STM32H7_LINCALRDYW3 BIT(24) #define STM32H7_LINCALRDYW2 BIT(23) #define STM32H7_LINCALRDYW1 BIT(22) #define STM32H7_LINCALRDYW_MASK GENMASK(27, 22) #define STM32H7_ADCALLIN BIT(16) #define STM32H7_BOOST BIT(8) #define STM32H7_ADSTP BIT(4) #define STM32H7_ADSTART BIT(2) #define STM32H7_ADDIS BIT(1) #define STM32H7_ADEN BIT(0) /* STM32H7_ADC_CFGR bit fields */ #define STM32H7_EXTEN_SHIFT 10 #define STM32H7_EXTEN_MASK GENMASK(11, 10) #define STM32H7_EXTSEL_SHIFT 5 #define STM32H7_EXTSEL_MASK GENMASK(9, 5) #define STM32H7_RES_SHIFT 2 #define STM32H7_RES_MASK GENMASK(4, 2) #define STM32H7_DMNGT_SHIFT 0 #define STM32H7_DMNGT_MASK GENMASK(1, 0) enum stm32h7_adc_dmngt { STM32H7_DMNGT_DR_ONLY, /* Regular data in DR only */ STM32H7_DMNGT_DMA_ONESHOT, /* DMA one shot mode */ STM32H7_DMNGT_DFSDM, /* DFSDM mode */ STM32H7_DMNGT_DMA_CIRC, /* DMA circular mode */ }; /* STM32H7_ADC_DIFSEL - bit fields */ #define STM32H7_DIFSEL_MASK GENMASK(19, 0) /* STM32H7_ADC_CALFACT - bit fields */ #define STM32H7_CALFACT_D_SHIFT 16 #define STM32H7_CALFACT_D_MASK GENMASK(26, 16) #define STM32H7_CALFACT_S_SHIFT 0 #define STM32H7_CALFACT_S_MASK GENMASK(10, 0) /* STM32H7_ADC_CALFACT2 - bit fields */ #define STM32H7_LINCALFACT_SHIFT 0 #define STM32H7_LINCALFACT_MASK GENMASK(29, 0) /* STM32H7_ADC_CSR - bit fields */ #define STM32H7_OVR_SLV BIT(20) #define STM32H7_EOC_SLV BIT(18) #define STM32H7_OVR_MST BIT(4) #define STM32H7_EOC_MST BIT(2) /* STM32H7_ADC_CCR - bit fields */ #define STM32H7_VBATEN BIT(24) #define STM32H7_VREFEN BIT(22) #define STM32H7_PRESC_SHIFT 18 #define STM32H7_PRESC_MASK GENMASK(21, 18) #define STM32H7_CKMODE_SHIFT 16 #define STM32H7_CKMODE_MASK GENMASK(17, 16) /* STM32MP1_ADC2_OR - bit fields */ #define STM32MP1_VDDCOREEN BIT(0) /* STM32MP1_ADC_HWCFGR0 - bit fields */ #define STM32MP1_ADCNUM_SHIFT 0 #define STM32MP1_ADCNUM_MASK GENMASK(3, 0) #define STM32MP1_MULPIPE_SHIFT 4 #define STM32MP1_MULPIPE_MASK GENMASK(7, 4) #define STM32MP1_OPBITS_SHIFT 8 #define STM32MP1_OPBITS_MASK GENMASK(11, 8) #define STM32MP1_IDLEVALUE_SHIFT 12 #define STM32MP1_IDLEVALUE_MASK GENMASK(15, 12) /* STM32MP1_ADC_VERR - bit fields */ #define STM32MP1_MINREV_SHIFT 0 #define STM32MP1_MINREV_MASK GENMASK(3, 0) #define STM32MP1_MAJREV_SHIFT 4 #define STM32MP1_MAJREV_MASK GENMASK(7, 4) /* STM32MP1_ADC_IPDR - bit fields */ #define STM32MP1_IPIDR_MASK GENMASK(31, 0) /* STM32MP1_ADC_SIDR - bit fields */ #define STM32MP1_SIDR_MASK GENMASK(31, 0) /* STM32MP13_ADC_CFGR specific bit fields */ #define STM32MP13_DMAEN BIT(0) #define STM32MP13_DMACFG BIT(1) #define STM32MP13_DFSDMCFG BIT(2) #define STM32MP13_RES_SHIFT 3 #define STM32MP13_RES_MASK GENMASK(4, 3) /* STM32MP13_ADC_DIFSEL - bit fields */ #define STM32MP13_DIFSEL_MASK GENMASK(18, 0) /* STM32MP13_ADC_CALFACT - bit fields */ #define STM32MP13_CALFACT_D_SHIFT 16 #define STM32MP13_CALFACT_D_MASK GENMASK(22, 16) #define STM32MP13_CALFACT_S_SHIFT 0 #define STM32MP13_CALFACT_S_MASK GENMASK(6, 0) /* STM32MP13_ADC2_OR - bit fields */ #define STM32MP13_OP2 BIT(2) #define STM32MP13_OP1 BIT(1) #define STM32MP13_OP0 BIT(0) #define STM32MP15_IPIDR_NUMBER 0x00110005 #define STM32MP13_IPIDR_NUMBER 0x00110006 /** * struct stm32_adc_common - stm32 ADC driver common data (for all instances) * @base: control registers base cpu addr * @phys_base: control registers base physical addr * @rate: clock rate used for analog circuitry * @vref_mv: vref voltage (mv) * @lock: spinlock */ struct stm32_adc_common { void __iomem *base; phys_addr_t phys_base; unsigned long rate; int vref_mv; spinlock_t lock; /* lock for common register */ }; #endif |