kernel/drivers/pinctrl/spear/pinctrl-spear3xx.c

   1 /*
   2  * Driver for the ST Microelectronics SPEAr3xx pinmux
   3  *
   4  * Copyright (C) 2012 ST Microelectronics
   5  * Viresh Kumar <vireshk@kernel.org>
   6  *
   7  * This file is licensed under the terms of the GNU General Public
   8  * License version 2. This program is licensed "as is" without any
   9  * warranty of any kind, whether express or implied.
  10  */
  11
  12 #include <linux/pinctrl/pinctrl.h>
  13
  14 #include "pinctrl-spear3xx.h"
  15
  16 /* pins */
  17 static const struct pinctrl_pin_desc spear3xx_pins[] = {
  18         SPEAR_PIN_0_TO_101,
  19 };
  20
  21 /* firda_pins */
  22 static const unsigned firda_pins[] = { 0, 1 };
  23 static struct spear_muxreg firda_muxreg[] = {
  24         {
  25                 .reg = -1,
  26                 .mask = PMX_FIRDA_MASK,
  27                 .val = PMX_FIRDA_MASK,
  28         },
  29 };
  30
  31 static struct spear_modemux firda_modemux[] = {
  32         {
  33                 .modes = ~0,
  34                 .muxregs = firda_muxreg,
  35                 .nmuxregs = ARRAY_SIZE(firda_muxreg),
  36         },
  37 };
  38
  39 struct spear_pingroup spear3xx_firda_pingroup = {
  40         .name = "firda_grp",
  41         .pins = firda_pins,
  42         .npins = ARRAY_SIZE(firda_pins),
  43         .modemuxs = firda_modemux,
  44         .nmodemuxs = ARRAY_SIZE(firda_modemux),
  45 };
  46
  47 static const char *const firda_grps[] = { "firda_grp" };
  48 struct spear_function spear3xx_firda_function = {
  49         .name = "firda",
  50         .groups = firda_grps,
  51         .ngroups = ARRAY_SIZE(firda_grps),
  52 };
  53
  54 /* i2c_pins */
  55 static const unsigned i2c_pins[] = { 4, 5 };
  56 static struct spear_muxreg i2c_muxreg[] = {
  57         {
  58                 .reg = -1,
  59                 .mask = PMX_I2C_MASK,
  60                 .val = PMX_I2C_MASK,
  61         },
  62 };
  63
  64 static struct spear_modemux i2c_modemux[] = {
  65         {
  66                 .modes = ~0,
  67                 .muxregs = i2c_muxreg,
  68                 .nmuxregs = ARRAY_SIZE(i2c_muxreg),
  69         },
  70 };
  71
  72 struct spear_pingroup spear3xx_i2c_pingroup = {
  73         .name = "i2c0_grp",
  74         .pins = i2c_pins,
  75         .npins = ARRAY_SIZE(i2c_pins),
  76         .modemuxs = i2c_modemux,
  77         .nmodemuxs = ARRAY_SIZE(i2c_modemux),
  78 };
  79
  80 static const char *const i2c_grps[] = { "i2c0_grp" };
  81 struct spear_function spear3xx_i2c_function = {
  82         .name = "i2c0",
  83         .groups = i2c_grps,
  84         .ngroups = ARRAY_SIZE(i2c_grps),
  85 };
  86
  87 /* ssp_cs_pins */
  88 static const unsigned ssp_cs_pins[] = { 34, 35, 36 };
  89 static struct spear_muxreg ssp_cs_muxreg[] = {
  90         {
  91                 .reg = -1,
  92                 .mask = PMX_SSP_CS_MASK,
  93                 .val = PMX_SSP_CS_MASK,
  94         },
  95 };
  96
  97 static struct spear_modemux ssp_cs_modemux[] = {
  98         {
  99                 .modes = ~0,
 100                 .muxregs = ssp_cs_muxreg,
 101                 .nmuxregs = ARRAY_SIZE(ssp_cs_muxreg),
 102         },
 103 };
 104
 105 struct spear_pingroup spear3xx_ssp_cs_pingroup = {
 106         .name = "ssp_cs_grp",
 107         .pins = ssp_cs_pins,
 108         .npins = ARRAY_SIZE(ssp_cs_pins),
 109         .modemuxs = ssp_cs_modemux,
 110         .nmodemuxs = ARRAY_SIZE(ssp_cs_modemux),
 111 };
 112
 113 static const char *const ssp_cs_grps[] = { "ssp_cs_grp" };
 114 struct spear_function spear3xx_ssp_cs_function = {
 115         .name = "ssp_cs",
 116         .groups = ssp_cs_grps,
 117         .ngroups = ARRAY_SIZE(ssp_cs_grps),
 118 };
 119
 120 /* ssp_pins */
 121 static const unsigned ssp_pins[] = { 6, 7, 8, 9 };
 122 static struct spear_muxreg ssp_muxreg[] = {
 123         {
 124                 .reg = -1,
 125                 .mask = PMX_SSP_MASK,
 126                 .val = PMX_SSP_MASK,
 127         },
 128 };
 129
 130 static struct spear_modemux ssp_modemux[] = {
 131         {
 132                 .modes = ~0,
 133                 .muxregs = ssp_muxreg,
 134                 .nmuxregs = ARRAY_SIZE(ssp_muxreg),
 135         },
 136 };
 137
 138 struct spear_pingroup spear3xx_ssp_pingroup = {
 139         .name = "ssp0_grp",
 140         .pins = ssp_pins,
 141         .npins = ARRAY_SIZE(ssp_pins),
 142         .modemuxs = ssp_modemux,
 143         .nmodemuxs = ARRAY_SIZE(ssp_modemux),
 144 };
 145
 146 static const char *const ssp_grps[] = { "ssp0_grp" };
 147 struct spear_function spear3xx_ssp_function = {
 148         .name = "ssp0",
 149         .groups = ssp_grps,
 150         .ngroups = ARRAY_SIZE(ssp_grps),
 151 };
 152
 153 /* mii_pins */
 154 static const unsigned mii_pins[] = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
 155         21, 22, 23, 24, 25, 26, 27 };
 156 static struct spear_muxreg mii_muxreg[] = {
 157         {
 158                 .reg = -1,
 159                 .mask = PMX_MII_MASK,
 160                 .val = PMX_MII_MASK,
 161         },
 162 };
 163
 164 static struct spear_modemux mii_modemux[] = {
 165         {
 166                 .modes = ~0,
 167                 .muxregs = mii_muxreg,
 168                 .nmuxregs = ARRAY_SIZE(mii_muxreg),
 169         },
 170 };
 171
 172 struct spear_pingroup spear3xx_mii_pingroup = {
 173         .name = "mii0_grp",
 174         .pins = mii_pins,
 175         .npins = ARRAY_SIZE(mii_pins),
 176         .modemuxs = mii_modemux,
 177         .nmodemuxs = ARRAY_SIZE(mii_modemux),
 178 };
 179
 180 static const char *const mii_grps[] = { "mii0_grp" };
 181 struct spear_function spear3xx_mii_function = {
 182         .name = "mii0",
 183         .groups = mii_grps,
 184         .ngroups = ARRAY_SIZE(mii_grps),
 185 };
 186
 187 /* gpio0_pin0_pins */
 188 static const unsigned gpio0_pin0_pins[] = { 28 };
 189 static struct spear_muxreg gpio0_pin0_muxreg[] = {
 190         {
 191                 .reg = -1,
 192                 .mask = PMX_GPIO_PIN0_MASK,
 193                 .val = PMX_GPIO_PIN0_MASK,
 194         },
 195 };
 196
 197 static struct spear_modemux gpio0_pin0_modemux[] = {
 198         {
 199                 .modes = ~0,
 200                 .muxregs = gpio0_pin0_muxreg,
 201                 .nmuxregs = ARRAY_SIZE(gpio0_pin0_muxreg),
 202         },
 203 };
 204
 205 struct spear_pingroup spear3xx_gpio0_pin0_pingroup = {
 206         .name = "gpio0_pin0_grp",
 207         .pins = gpio0_pin0_pins,
 208         .npins = ARRAY_SIZE(gpio0_pin0_pins),
 209         .modemuxs = gpio0_pin0_modemux,
 210         .nmodemuxs = ARRAY_SIZE(gpio0_pin0_modemux),
 211 };
 212
 213 /* gpio0_pin1_pins */
 214 static const unsigned gpio0_pin1_pins[] = { 29 };
 215 static struct spear_muxreg gpio0_pin1_muxreg[] = {
 216         {
 217                 .reg = -1,
 218                 .mask = PMX_GPIO_PIN1_MASK,
 219                 .val = PMX_GPIO_PIN1_MASK,
 220         },
 221 };
 222
 223 static struct spear_modemux gpio0_pin1_modemux[] = {
 224         {
 225                 .modes = ~0,
 226                 .muxregs = gpio0_pin1_muxreg,
 227                 .nmuxregs = ARRAY_SIZE(gpio0_pin1_muxreg),
 228         },
 229 };
 230
 231 struct spear_pingroup spear3xx_gpio0_pin1_pingroup = {
 232         .name = "gpio0_pin1_grp",
 233         .pins = gpio0_pin1_pins,
 234         .npins = ARRAY_SIZE(gpio0_pin1_pins),
 235         .modemuxs = gpio0_pin1_modemux,
 236         .nmodemuxs = ARRAY_SIZE(gpio0_pin1_modemux),
 237 };
 238
 239 /* gpio0_pin2_pins */
 240 static const unsigned gpio0_pin2_pins[] = { 30 };
 241 static struct spear_muxreg gpio0_pin2_muxreg[] = {
 242         {
 243                 .reg = -1,
 244                 .mask = PMX_GPIO_PIN2_MASK,
 245                 .val = PMX_GPIO_PIN2_MASK,
 246         },
 247 };
 248
 249 static struct spear_modemux gpio0_pin2_modemux[] = {
 250         {
 251                 .modes = ~0,
 252                 .muxregs = gpio0_pin2_muxreg,
 253                 .nmuxregs = ARRAY_SIZE(gpio0_pin2_muxreg),
 254         },
 255 };
 256
 257 struct spear_pingroup spear3xx_gpio0_pin2_pingroup = {
 258         .name = "gpio0_pin2_grp",
 259         .pins = gpio0_pin2_pins,
 260         .npins = ARRAY_SIZE(gpio0_pin2_pins),
 261         .modemuxs = gpio0_pin2_modemux,
 262         .nmodemuxs = ARRAY_SIZE(gpio0_pin2_modemux),
 263 };
 264
 265 /* gpio0_pin3_pins */
 266 static const unsigned gpio0_pin3_pins[] = { 31 };
 267 static struct spear_muxreg gpio0_pin3_muxreg[] = {
 268         {
 269                 .reg = -1,
 270                 .mask = PMX_GPIO_PIN3_MASK,
 271                 .val = PMX_GPIO_PIN3_MASK,
 272         },
 273 };
 274
 275 static struct spear_modemux gpio0_pin3_modemux[] = {
 276         {
 277                 .modes = ~0,
 278                 .muxregs = gpio0_pin3_muxreg,
 279                 .nmuxregs = ARRAY_SIZE(gpio0_pin3_muxreg),
 280         },
 281 };
 282
 283 struct spear_pingroup spear3xx_gpio0_pin3_pingroup = {
 284         .name = "gpio0_pin3_grp",
 285         .pins = gpio0_pin3_pins,
 286         .npins = ARRAY_SIZE(gpio0_pin3_pins),
 287         .modemuxs = gpio0_pin3_modemux,
 288         .nmodemuxs = ARRAY_SIZE(gpio0_pin3_modemux),
 289 };
 290
 291 /* gpio0_pin4_pins */
 292 static const unsigned gpio0_pin4_pins[] = { 32 };
 293 static struct spear_muxreg gpio0_pin4_muxreg[] = {
 294         {
 295                 .reg = -1,
 296                 .mask = PMX_GPIO_PIN4_MASK,
 297                 .val = PMX_GPIO_PIN4_MASK,
 298         },
 299 };
 300
 301 static struct spear_modemux gpio0_pin4_modemux[] = {
 302         {
 303                 .modes = ~0,
 304                 .muxregs = gpio0_pin4_muxreg,
 305                 .nmuxregs = ARRAY_SIZE(gpio0_pin4_muxreg),
 306         },
 307 };
 308
 309 struct spear_pingroup spear3xx_gpio0_pin4_pingroup = {
 310         .name = "gpio0_pin4_grp",
 311         .pins = gpio0_pin4_pins,
 312         .npins = ARRAY_SIZE(gpio0_pin4_pins),
 313         .modemuxs = gpio0_pin4_modemux,
 314         .nmodemuxs = ARRAY_SIZE(gpio0_pin4_modemux),
 315 };
 316
 317 /* gpio0_pin5_pins */
 318 static const unsigned gpio0_pin5_pins[] = { 33 };
 319 static struct spear_muxreg gpio0_pin5_muxreg[] = {
 320         {
 321                 .reg = -1,
 322                 .mask = PMX_GPIO_PIN5_MASK,
 323                 .val = PMX_GPIO_PIN5_MASK,
 324         },
 325 };
 326
 327 static struct spear_modemux gpio0_pin5_modemux[] = {
 328         {
 329                 .modes = ~0,
 330                 .muxregs = gpio0_pin5_muxreg,
 331                 .nmuxregs = ARRAY_SIZE(gpio0_pin5_muxreg),
 332         },
 333 };
 334
 335 struct spear_pingroup spear3xx_gpio0_pin5_pingroup = {
 336         .name = "gpio0_pin5_grp",
 337         .pins = gpio0_pin5_pins,
 338         .npins = ARRAY_SIZE(gpio0_pin5_pins),
 339         .modemuxs = gpio0_pin5_modemux,
 340         .nmodemuxs = ARRAY_SIZE(gpio0_pin5_modemux),
 341 };
 342
 343 static const char *const gpio0_grps[] = { "gpio0_pin0_grp", "gpio0_pin1_grp",
 344         "gpio0_pin2_grp", "gpio0_pin3_grp", "gpio0_pin4_grp", "gpio0_pin5_grp",
 345 };
 346 struct spear_function spear3xx_gpio0_function = {
 347         .name = "gpio0",
 348         .groups = gpio0_grps,
 349         .ngroups = ARRAY_SIZE(gpio0_grps),
 350 };
 351
 352 /* uart0_ext_pins */
 353 static const unsigned uart0_ext_pins[] = { 37, 38, 39, 40, 41, 42 };
 354 static struct spear_muxreg uart0_ext_muxreg[] = {
 355         {
 356                 .reg = -1,
 357                 .mask = PMX_UART0_MODEM_MASK,
 358                 .val = PMX_UART0_MODEM_MASK,
 359         },
 360 };
 361
 362 static struct spear_modemux uart0_ext_modemux[] = {
 363         {
 364                 .modes = ~0,
 365                 .muxregs = uart0_ext_muxreg,
 366                 .nmuxregs = ARRAY_SIZE(uart0_ext_muxreg),
 367         },
 368 };
 369
 370 struct spear_pingroup spear3xx_uart0_ext_pingroup = {
 371         .name = "uart0_ext_grp",
 372         .pins = uart0_ext_pins,
 373         .npins = ARRAY_SIZE(uart0_ext_pins),
 374         .modemuxs = uart0_ext_modemux,
 375         .nmodemuxs = ARRAY_SIZE(uart0_ext_modemux),
 376 };
 377
 378 static const char *const uart0_ext_grps[] = { "uart0_ext_grp" };
 379 struct spear_function spear3xx_uart0_ext_function = {
 380         .name = "uart0_ext",
 381         .groups = uart0_ext_grps,
 382         .ngroups = ARRAY_SIZE(uart0_ext_grps),
 383 };
 384
 385 /* uart0_pins */
 386 static const unsigned uart0_pins[] = { 2, 3 };
 387 static struct spear_muxreg uart0_muxreg[] = {
 388         {
 389                 .reg = -1,
 390                 .mask = PMX_UART0_MASK,
 391                 .val = PMX_UART0_MASK,
 392         },
 393 };
 394
 395 static struct spear_modemux uart0_modemux[] = {
 396         {
 397                 .modes = ~0,
 398                 .muxregs = uart0_muxreg,
 399                 .nmuxregs = ARRAY_SIZE(uart0_muxreg),
 400         },
 401 };
 402
 403 struct spear_pingroup spear3xx_uart0_pingroup = {
 404         .name = "uart0_grp",
 405         .pins = uart0_pins,
 406         .npins = ARRAY_SIZE(uart0_pins),
 407         .modemuxs = uart0_modemux,
 408         .nmodemuxs = ARRAY_SIZE(uart0_modemux),
 409 };
 410
 411 static const char *const uart0_grps[] = { "uart0_grp" };
 412 struct spear_function spear3xx_uart0_function = {
 413         .name = "uart0",
 414         .groups = uart0_grps,
 415         .ngroups = ARRAY_SIZE(uart0_grps),
 416 };
 417
 418 /* timer_0_1_pins */
 419 static const unsigned timer_0_1_pins[] = { 43, 44, 47, 48 };
 420 static struct spear_muxreg timer_0_1_muxreg[] = {
 421         {
 422                 .reg = -1,
 423                 .mask = PMX_TIMER_0_1_MASK,
 424                 .val = PMX_TIMER_0_1_MASK,
 425         },
 426 };
 427
 428 static struct spear_modemux timer_0_1_modemux[] = {
 429         {
 430                 .modes = ~0,
 431                 .muxregs = timer_0_1_muxreg,
 432                 .nmuxregs = ARRAY_SIZE(timer_0_1_muxreg),
 433         },
 434 };
 435
 436 struct spear_pingroup spear3xx_timer_0_1_pingroup = {
 437         .name = "timer_0_1_grp",
 438         .pins = timer_0_1_pins,
 439         .npins = ARRAY_SIZE(timer_0_1_pins),
 440         .modemuxs = timer_0_1_modemux,
 441         .nmodemuxs = ARRAY_SIZE(timer_0_1_modemux),
 442 };
 443
 444 static const char *const timer_0_1_grps[] = { "timer_0_1_grp" };
 445 struct spear_function spear3xx_timer_0_1_function = {
 446         .name = "timer_0_1",
 447         .groups = timer_0_1_grps,
 448         .ngroups = ARRAY_SIZE(timer_0_1_grps),
 449 };
 450
 451 /* timer_2_3_pins */
 452 static const unsigned timer_2_3_pins[] = { 45, 46, 49, 50 };
 453 static struct spear_muxreg timer_2_3_muxreg[] = {
 454         {
 455                 .reg = -1,
 456                 .mask = PMX_TIMER_2_3_MASK,
 457                 .val = PMX_TIMER_2_3_MASK,
 458         },
 459 };
 460
 461 static struct spear_modemux timer_2_3_modemux[] = {
 462         {
 463                 .modes = ~0,
 464                 .muxregs = timer_2_3_muxreg,
 465                 .nmuxregs = ARRAY_SIZE(timer_2_3_muxreg),
 466         },
 467 };
 468
 469 struct spear_pingroup spear3xx_timer_2_3_pingroup = {
 470         .name = "timer_2_3_grp",
 471         .pins = timer_2_3_pins,
 472         .npins = ARRAY_SIZE(timer_2_3_pins),
 473         .modemuxs = timer_2_3_modemux,
 474         .nmodemuxs = ARRAY_SIZE(timer_2_3_modemux),
 475 };
 476
 477 static const char *const timer_2_3_grps[] = { "timer_2_3_grp" };
 478 struct spear_function spear3xx_timer_2_3_function = {
 479         .name = "timer_2_3",
 480         .groups = timer_2_3_grps,
 481         .ngroups = ARRAY_SIZE(timer_2_3_grps),
 482 };
 483
 484 /* Define muxreg arrays */
 485 DEFINE_MUXREG(firda_pins, 0, PMX_FIRDA_MASK, 0);
 486 DEFINE_MUXREG(i2c_pins, 0, PMX_I2C_MASK, 0);
 487 DEFINE_MUXREG(ssp_cs_pins, 0, PMX_SSP_CS_MASK, 0);
 488 DEFINE_MUXREG(ssp_pins, 0, PMX_SSP_MASK, 0);
 489 DEFINE_MUXREG(mii_pins, 0, PMX_MII_MASK, 0);
 490 DEFINE_MUXREG(gpio0_pin0_pins, 0, PMX_GPIO_PIN0_MASK, 0);
 491 DEFINE_MUXREG(gpio0_pin1_pins, 0, PMX_GPIO_PIN1_MASK, 0);
 492 DEFINE_MUXREG(gpio0_pin2_pins, 0, PMX_GPIO_PIN2_MASK, 0);
 493 DEFINE_MUXREG(gpio0_pin3_pins, 0, PMX_GPIO_PIN3_MASK, 0);
 494 DEFINE_MUXREG(gpio0_pin4_pins, 0, PMX_GPIO_PIN4_MASK, 0);
 495 DEFINE_MUXREG(gpio0_pin5_pins, 0, PMX_GPIO_PIN5_MASK, 0);
 496 DEFINE_MUXREG(uart0_ext_pins, 0, PMX_UART0_MODEM_MASK, 0);
 497 DEFINE_MUXREG(uart0_pins, 0, PMX_UART0_MASK, 0);
 498 DEFINE_MUXREG(timer_0_1_pins, 0, PMX_TIMER_0_1_MASK, 0);
 499 DEFINE_MUXREG(timer_2_3_pins, 0, PMX_TIMER_2_3_MASK, 0);
 500
 501 static struct spear_gpio_pingroup spear3xx_gpio_pingroup[] = {
 502         GPIO_PINGROUP(firda_pins),
 503         GPIO_PINGROUP(i2c_pins),
 504         GPIO_PINGROUP(ssp_cs_pins),
 505         GPIO_PINGROUP(ssp_pins),
 506         GPIO_PINGROUP(mii_pins),
 507         GPIO_PINGROUP(gpio0_pin0_pins),
 508         GPIO_PINGROUP(gpio0_pin1_pins),
 509         GPIO_PINGROUP(gpio0_pin2_pins),
 510         GPIO_PINGROUP(gpio0_pin3_pins),
 511         GPIO_PINGROUP(gpio0_pin4_pins),
 512         GPIO_PINGROUP(gpio0_pin5_pins),
 513         GPIO_PINGROUP(uart0_ext_pins),
 514         GPIO_PINGROUP(uart0_pins),
 515         GPIO_PINGROUP(timer_0_1_pins),
 516         GPIO_PINGROUP(timer_2_3_pins),
 517 };
 518
 519 struct spear_pinctrl_machdata spear3xx_machdata = {
 520         .pins = spear3xx_pins,
 521         .npins = ARRAY_SIZE(spear3xx_pins),
 522         .gpio_pingroups = spear3xx_gpio_pingroup,
 523         .ngpio_pingroups = ARRAY_SIZE(spear3xx_gpio_pingroup),
 524 };