1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __SPI_CAVIUM_H 3#define __SPI_CAVIUM_H 4 5#include <linux/clk.h> 6 7#define OCTEON_SPI_MAX_BYTES 9 8#define OCTEON_SPI_MAX_CLOCK_HZ 16000000 9 10struct octeon_spi_regs { 11 int config; 12 int status; 13 int tx; 14 int data; 15}; 16 17struct octeon_spi { 18 void __iomem *register_base; 19 u64 last_cfg; 20 u64 cs_enax; 21 int sys_freq; 22 struct octeon_spi_regs regs; 23 struct clk *clk; 24}; 25 26#define OCTEON_SPI_CFG(x) (x->regs.config) 27#define OCTEON_SPI_STS(x) (x->regs.status) 28#define OCTEON_SPI_TX(x) (x->regs.tx) 29#define OCTEON_SPI_DAT0(x) (x->regs.data) 30 31int octeon_spi_transfer_one_message(struct spi_controller *ctlr, 32 struct spi_message *msg); 33 34/* MPI register descriptions */ 35 36#define CVMX_MPI_CFG (CVMX_ADD_IO_SEG(0x0001070000001000ull)) 37#define CVMX_MPI_DATX(offset) (CVMX_ADD_IO_SEG(0x0001070000001080ull) + ((offset) & 15) * 8) 38#define CVMX_MPI_STS (CVMX_ADD_IO_SEG(0x0001070000001008ull)) 39#define CVMX_MPI_TX (CVMX_ADD_IO_SEG(0x0001070000001010ull)) 40 41union cvmx_mpi_cfg { 42 uint64_t u64; 43 struct cvmx_mpi_cfg_s { 44#ifdef __BIG_ENDIAN_BITFIELD 45 uint64_t reserved_29_63:35; 46 uint64_t clkdiv:13; 47 uint64_t csena3:1; 48 uint64_t csena2:1; 49 uint64_t csena1:1; 50 uint64_t csena0:1; 51 uint64_t cslate:1; 52 uint64_t tritx:1; 53 uint64_t idleclks:2; 54 uint64_t cshi:1; 55 uint64_t csena:1; 56 uint64_t int_ena:1; 57 uint64_t lsbfirst:1; 58 uint64_t wireor:1; 59 uint64_t clk_cont:1; 60 uint64_t idlelo:1; 61 uint64_t enable:1; 62#else 63 uint64_t enable:1; 64 uint64_t idlelo:1; 65 uint64_t clk_cont:1; 66 uint64_t wireor:1; 67 uint64_t lsbfirst:1; 68 uint64_t int_ena:1; 69 uint64_t csena:1; 70 uint64_t cshi:1; 71 uint64_t idleclks:2; 72 uint64_t tritx:1; 73 uint64_t cslate:1; 74 uint64_t csena0:1; 75 uint64_t csena1:1; 76 uint64_t csena2:1; 77 uint64_t csena3:1; 78 uint64_t clkdiv:13; 79 uint64_t reserved_29_63:35; 80#endif 81 } s; 82 struct cvmx_mpi_cfg_cn30xx { 83#ifdef __BIG_ENDIAN_BITFIELD 84 uint64_t reserved_29_63:35; 85 uint64_t clkdiv:13; 86 uint64_t reserved_12_15:4; 87 uint64_t cslate:1; 88 uint64_t tritx:1; 89 uint64_t idleclks:2; 90 uint64_t cshi:1; 91 uint64_t csena:1; 92 uint64_t int_ena:1; 93 uint64_t lsbfirst:1; 94 uint64_t wireor:1; 95 uint64_t clk_cont:1; 96 uint64_t idlelo:1; 97 uint64_t enable:1; 98#else 99 uint64_t enable:1; 100 uint64_t idlelo:1; 101 uint64_t clk_cont:1; 102 uint64_t wireor:1; 103 uint64_t lsbfirst:1; 104 uint64_t int_ena:1; 105 uint64_t csena:1; 106 uint64_t cshi:1; 107 uint64_t idleclks:2; 108 uint64_t tritx:1; 109 uint64_t cslate:1; 110 uint64_t reserved_12_15:4; 111 uint64_t clkdiv:13; 112 uint64_t reserved_29_63:35; 113#endif 114 } cn30xx; 115 struct cvmx_mpi_cfg_cn31xx { 116#ifdef __BIG_ENDIAN_BITFIELD 117 uint64_t reserved_29_63:35; 118 uint64_t clkdiv:13; 119 uint64_t reserved_11_15:5; 120 uint64_t tritx:1; 121 uint64_t idleclks:2; 122 uint64_t cshi:1; 123 uint64_t csena:1; 124 uint64_t int_ena:1; 125 uint64_t lsbfirst:1; 126 uint64_t wireor:1; 127 uint64_t clk_cont:1; 128 uint64_t idlelo:1; 129 uint64_t enable:1; 130#else 131 uint64_t enable:1; 132 uint64_t idlelo:1; 133 uint64_t clk_cont:1; 134 uint64_t wireor:1; 135 uint64_t lsbfirst:1; 136 uint64_t int_ena:1; 137 uint64_t csena:1; 138 uint64_t cshi:1; 139 uint64_t idleclks:2; 140 uint64_t tritx:1; 141 uint64_t reserved_11_15:5; 142 uint64_t clkdiv:13; 143 uint64_t reserved_29_63:35; 144#endif 145 } cn31xx; 146 struct cvmx_mpi_cfg_cn30xx cn50xx; 147 struct cvmx_mpi_cfg_cn61xx { 148#ifdef __BIG_ENDIAN_BITFIELD 149 uint64_t reserved_29_63:35; 150 uint64_t clkdiv:13; 151 uint64_t reserved_14_15:2; 152 uint64_t csena1:1; 153 uint64_t csena0:1; 154 uint64_t cslate:1; 155 uint64_t tritx:1; 156 uint64_t idleclks:2; 157 uint64_t cshi:1; 158 uint64_t reserved_6_6:1; 159 uint64_t int_ena:1; 160 uint64_t lsbfirst:1; 161 uint64_t wireor:1; 162 uint64_t clk_cont:1; 163 uint64_t idlelo:1; 164 uint64_t enable:1; 165#else 166 uint64_t enable:1; 167 uint64_t idlelo:1; 168 uint64_t clk_cont:1; 169 uint64_t wireor:1; 170 uint64_t lsbfirst:1; 171 uint64_t int_ena:1; 172 uint64_t reserved_6_6:1; 173 uint64_t cshi:1; 174 uint64_t idleclks:2; 175 uint64_t tritx:1; 176 uint64_t cslate:1; 177 uint64_t csena0:1; 178 uint64_t csena1:1; 179 uint64_t reserved_14_15:2; 180 uint64_t clkdiv:13; 181 uint64_t reserved_29_63:35; 182#endif 183 } cn61xx; 184 struct cvmx_mpi_cfg_cn66xx { 185#ifdef __BIG_ENDIAN_BITFIELD 186 uint64_t reserved_29_63:35; 187 uint64_t clkdiv:13; 188 uint64_t csena3:1; 189 uint64_t csena2:1; 190 uint64_t reserved_12_13:2; 191 uint64_t cslate:1; 192 uint64_t tritx:1; 193 uint64_t idleclks:2; 194 uint64_t cshi:1; 195 uint64_t reserved_6_6:1; 196 uint64_t int_ena:1; 197 uint64_t lsbfirst:1; 198 uint64_t wireor:1; 199 uint64_t clk_cont:1; 200 uint64_t idlelo:1; 201 uint64_t enable:1; 202#else 203 uint64_t enable:1; 204 uint64_t idlelo:1; 205 uint64_t clk_cont:1; 206 uint64_t wireor:1; 207 uint64_t lsbfirst:1; 208 uint64_t int_ena:1; 209 uint64_t reserved_6_6:1; 210 uint64_t cshi:1; 211 uint64_t idleclks:2; 212 uint64_t tritx:1; 213 uint64_t cslate:1; 214 uint64_t reserved_12_13:2; 215 uint64_t csena2:1; 216 uint64_t csena3:1; 217 uint64_t clkdiv:13; 218 uint64_t reserved_29_63:35; 219#endif 220 } cn66xx; 221 struct cvmx_mpi_cfg_cn61xx cnf71xx; 222}; 223 224union cvmx_mpi_datx { 225 uint64_t u64; 226 struct cvmx_mpi_datx_s { 227#ifdef __BIG_ENDIAN_BITFIELD 228 uint64_t reserved_8_63:56; 229 uint64_t data:8; 230#else 231 uint64_t data:8; 232 uint64_t reserved_8_63:56; 233#endif 234 } s; 235 struct cvmx_mpi_datx_s cn30xx; 236 struct cvmx_mpi_datx_s cn31xx; 237 struct cvmx_mpi_datx_s cn50xx; 238 struct cvmx_mpi_datx_s cn61xx; 239 struct cvmx_mpi_datx_s cn66xx; 240 struct cvmx_mpi_datx_s cnf71xx; 241}; 242 243union cvmx_mpi_sts { 244 uint64_t u64; 245 struct cvmx_mpi_sts_s { 246#ifdef __BIG_ENDIAN_BITFIELD 247 uint64_t reserved_13_63:51; 248 uint64_t rxnum:5; 249 uint64_t reserved_1_7:7; 250 uint64_t busy:1; 251#else 252 uint64_t busy:1; 253 uint64_t reserved_1_7:7; 254 uint64_t rxnum:5; 255 uint64_t reserved_13_63:51; 256#endif 257 } s; 258 struct cvmx_mpi_sts_s cn30xx; 259 struct cvmx_mpi_sts_s cn31xx; 260 struct cvmx_mpi_sts_s cn50xx; 261 struct cvmx_mpi_sts_s cn61xx; 262 struct cvmx_mpi_sts_s cn66xx; 263 struct cvmx_mpi_sts_s cnf71xx; 264}; 265 266union cvmx_mpi_tx { 267 uint64_t u64; 268 struct cvmx_mpi_tx_s { 269#ifdef __BIG_ENDIAN_BITFIELD 270 uint64_t reserved_22_63:42; 271 uint64_t csid:2; 272 uint64_t reserved_17_19:3; 273 uint64_t leavecs:1; 274 uint64_t reserved_13_15:3; 275 uint64_t txnum:5; 276 uint64_t reserved_5_7:3; 277 uint64_t totnum:5; 278#else 279 uint64_t totnum:5; 280 uint64_t reserved_5_7:3; 281 uint64_t txnum:5; 282 uint64_t reserved_13_15:3; 283 uint64_t leavecs:1; 284 uint64_t reserved_17_19:3; 285 uint64_t csid:2; 286 uint64_t reserved_22_63:42; 287#endif 288 } s; 289 struct cvmx_mpi_tx_cn30xx { 290#ifdef __BIG_ENDIAN_BITFIELD 291 uint64_t reserved_17_63:47; 292 uint64_t leavecs:1; 293 uint64_t reserved_13_15:3; 294 uint64_t txnum:5; 295 uint64_t reserved_5_7:3; 296 uint64_t totnum:5; 297#else 298 uint64_t totnum:5; 299 uint64_t reserved_5_7:3; 300 uint64_t txnum:5; 301 uint64_t reserved_13_15:3; 302 uint64_t leavecs:1; 303 uint64_t reserved_17_63:47; 304#endif 305 } cn30xx; 306 struct cvmx_mpi_tx_cn30xx cn31xx; 307 struct cvmx_mpi_tx_cn30xx cn50xx; 308 struct cvmx_mpi_tx_cn61xx { 309#ifdef __BIG_ENDIAN_BITFIELD 310 uint64_t reserved_21_63:43; 311 uint64_t csid:1; 312 uint64_t reserved_17_19:3; 313 uint64_t leavecs:1; 314 uint64_t reserved_13_15:3; 315 uint64_t txnum:5; 316 uint64_t reserved_5_7:3; 317 uint64_t totnum:5; 318#else 319 uint64_t totnum:5; 320 uint64_t reserved_5_7:3; 321 uint64_t txnum:5; 322 uint64_t reserved_13_15:3; 323 uint64_t leavecs:1; 324 uint64_t reserved_17_19:3; 325 uint64_t csid:1; 326 uint64_t reserved_21_63:43; 327#endif 328 } cn61xx; 329 struct cvmx_mpi_tx_s cn66xx; 330 struct cvmx_mpi_tx_cn61xx cnf71xx; 331}; 332 333#endif /* __SPI_CAVIUM_H */ 334