arch/m68knommu/platform/528x/gpio.c

   1 /*
   2  * Coldfire generic GPIO support
   3  *
   4  * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14 */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18
  19 #include <asm/coldfire.h>
  20 #include <asm/mcfsim.h>
  21 #include <asm/mcfgpio.h>
  22
  23 static struct mcf_gpio_chip mcf_gpio_chips[] = {
  24         {
  25                 .gpio_chip                      = {
  26                         .label                  = "NQ",
  27                         .request                = mcf_gpio_request,
  28                         .free                   = mcf_gpio_free,
  29                         .direction_input        = mcf_gpio_direction_input,
  30                         .direction_output       = mcf_gpio_direction_output,
  31                         .get                    = mcf_gpio_get_value,
  32                         .set                    = mcf_gpio_set_value,
  33                         .base                   = 1,
  34                         .ngpio                  = 7,
  35                 },
  36                 .pddr                           = MCFEPORT_EPDDR,
  37                 .podr                           = MCFEPORT_EPDR,
  38                 .ppdr                           = MCFEPORT_EPPDR,
  39         },
  40         {
  41                 .gpio_chip                      = {
  42                         .label                  = "TA",
  43                         .request                = mcf_gpio_request,
  44                         .free                   = mcf_gpio_free,
  45                         .direction_input        = mcf_gpio_direction_input,
  46                         .direction_output       = mcf_gpio_direction_output,
  47                         .get                    = mcf_gpio_get_value,
  48                         .set                    = mcf_gpio_set_value_fast,
  49                         .base                   = 8,
  50                         .ngpio                  = 4,
  51                 },
  52                 .pddr                           = MCFGPTA_GPTDDR,
  53                 .podr                           = MCFGPTA_GPTPORT,
  54                 .ppdr                           = MCFGPTB_GPTPORT,
  55         },
  56         {
  57                 .gpio_chip                      = {
  58                         .label                  = "TB",
  59                         .request                = mcf_gpio_request,
  60                         .free                   = mcf_gpio_free,
  61                         .direction_input        = mcf_gpio_direction_input,
  62                         .direction_output       = mcf_gpio_direction_output,
  63                         .get                    = mcf_gpio_get_value,
  64                         .set                    = mcf_gpio_set_value_fast,
  65                         .base                   = 16,
  66                         .ngpio                  = 4,
  67                 },
  68                 .pddr                           = MCFGPTB_GPTDDR,
  69                 .podr                           = MCFGPTB_GPTPORT,
  70                 .ppdr                           = MCFGPTB_GPTPORT,
  71         },
  72         {
  73                 .gpio_chip                      = {
  74                         .label                  = "QA",
  75                         .request                = mcf_gpio_request,
  76                         .free                   = mcf_gpio_free,
  77                         .direction_input        = mcf_gpio_direction_input,
  78                         .direction_output       = mcf_gpio_direction_output,
  79                         .get                    = mcf_gpio_get_value,
  80                         .set                    = mcf_gpio_set_value_fast,
  81                         .base                   = 24,
  82                         .ngpio                  = 4,
  83                 },
  84                 .pddr                           = MCFQADC_DDRQA,
  85                 .podr                           = MCFQADC_PORTQA,
  86                 .ppdr                           = MCFQADC_PORTQA,
  87         },
  88         {
  89                 .gpio_chip                      = {
  90                         .label                  = "QB",
  91                         .request                = mcf_gpio_request,
  92                         .free                   = mcf_gpio_free,
  93                         .direction_input        = mcf_gpio_direction_input,
  94                         .direction_output       = mcf_gpio_direction_output,
  95                         .get                    = mcf_gpio_get_value,
  96                         .set                    = mcf_gpio_set_value_fast,
  97                         .base                   = 32,
  98                         .ngpio                  = 4,
  99                 },
 100                 .pddr                           = MCFQADC_DDRQB,
 101                 .podr                           = MCFQADC_PORTQB,
 102                 .ppdr                           = MCFQADC_PORTQB,
 103         },
 104         {
 105                 .gpio_chip                      = {
 106                         .label                  = "A",
 107                         .request                = mcf_gpio_request,
 108                         .free                   = mcf_gpio_free,
 109                         .direction_input        = mcf_gpio_direction_input,
 110                         .direction_output       = mcf_gpio_direction_output,
 111                         .get                    = mcf_gpio_get_value,
 112                         .set                    = mcf_gpio_set_value_fast,
 113                         .base                   = 40,
 114                         .ngpio                  = 8,
 115                 },
 116                 .pddr                           = MCFGPIO_DDRA,
 117                 .podr                           = MCFGPIO_PORTA,
 118                 .ppdr                           = MCFGPIO_PORTAP,
 119                 .setr                           = MCFGPIO_SETA,
 120                 .clrr                           = MCFGPIO_CLRA,
 121         },
 122         {
 123                 .gpio_chip                      = {
 124                         .label                  = "B",
 125                         .request                = mcf_gpio_request,
 126                         .free                   = mcf_gpio_free,
 127                         .direction_input        = mcf_gpio_direction_input,
 128                         .direction_output       = mcf_gpio_direction_output,
 129                         .get                    = mcf_gpio_get_value,
 130                         .set                    = mcf_gpio_set_value_fast,
 131                         .base                   = 48,
 132                         .ngpio                  = 8,
 133                 },
 134                 .pddr                           = MCFGPIO_DDRB,
 135                 .podr                           = MCFGPIO_PORTB,
 136                 .ppdr                           = MCFGPIO_PORTBP,
 137                 .setr                           = MCFGPIO_SETB,
 138                 .clrr                           = MCFGPIO_CLRB,
 139         },
 140         {
 141                 .gpio_chip                      = {
 142                         .label                  = "C",
 143                         .request                = mcf_gpio_request,
 144                         .free                   = mcf_gpio_free,
 145                         .direction_input        = mcf_gpio_direction_input,
 146                         .direction_output       = mcf_gpio_direction_output,
 147                         .get                    = mcf_gpio_get_value,
 148                         .set                    = mcf_gpio_set_value_fast,
 149                         .base                   = 56,
 150                         .ngpio                  = 8,
 151                 },
 152                 .pddr                           = MCFGPIO_DDRC,
 153                 .podr                           = MCFGPIO_PORTC,
 154                 .ppdr                           = MCFGPIO_PORTCP,
 155                 .setr                           = MCFGPIO_SETC,
 156                 .clrr                           = MCFGPIO_CLRC,
 157         },
 158         {
 159                 .gpio_chip                      = {
 160                         .label                  = "D",
 161                         .request                = mcf_gpio_request,
 162                         .free                   = mcf_gpio_free,
 163                         .direction_input        = mcf_gpio_direction_input,
 164                         .direction_output       = mcf_gpio_direction_output,
 165                         .get                    = mcf_gpio_get_value,
 166                         .set                    = mcf_gpio_set_value_fast,
 167                         .base                   = 64,
 168                         .ngpio                  = 8,
 169                 },
 170                 .pddr                           = MCFGPIO_DDRD,
 171                 .podr                           = MCFGPIO_PORTD,
 172                 .ppdr                           = MCFGPIO_PORTDP,
 173                 .setr                           = MCFGPIO_SETD,
 174                 .clrr                           = MCFGPIO_CLRD,
 175         },
 176         {
 177                 .gpio_chip                      = {
 178                         .label                  = "E",
 179                         .request                = mcf_gpio_request,
 180                         .free                   = mcf_gpio_free,
 181                         .direction_input        = mcf_gpio_direction_input,
 182                         .direction_output       = mcf_gpio_direction_output,
 183                         .get                    = mcf_gpio_get_value,
 184                         .set                    = mcf_gpio_set_value_fast,
 185                         .base                   = 72,
 186                         .ngpio                  = 8,
 187                 },
 188                 .pddr                           = MCFGPIO_DDRE,
 189                 .podr                           = MCFGPIO_PORTE,
 190                 .ppdr                           = MCFGPIO_PORTEP,
 191                 .setr                           = MCFGPIO_SETE,
 192                 .clrr                           = MCFGPIO_CLRE,
 193         },
 194         {
 195                 .gpio_chip                      = {
 196                         .label                  = "F",
 197                         .request                = mcf_gpio_request,
 198                         .free                   = mcf_gpio_free,
 199                         .direction_input        = mcf_gpio_direction_input,
 200                         .direction_output       = mcf_gpio_direction_output,
 201                         .get                    = mcf_gpio_get_value,
 202                         .set                    = mcf_gpio_set_value_fast,
 203                         .base                   = 80,
 204                         .ngpio                  = 8,
 205                 },
 206                 .pddr                           = MCFGPIO_DDRF,
 207                 .podr                           = MCFGPIO_PORTF,
 208                 .ppdr                           = MCFGPIO_PORTFP,
 209                 .setr                           = MCFGPIO_SETF,
 210                 .clrr                           = MCFGPIO_CLRF,
 211         },
 212         {
 213                 .gpio_chip                      = {
 214                         .label                  = "G",
 215                         .request                = mcf_gpio_request,
 216                         .free                   = mcf_gpio_free,
 217                         .direction_input        = mcf_gpio_direction_input,
 218                         .direction_output       = mcf_gpio_direction_output,
 219                         .get                    = mcf_gpio_get_value,
 220                         .set                    = mcf_gpio_set_value_fast,
 221                         .base                   = 88,
 222                         .ngpio                  = 8,
 223                 },
 224                 .pddr                           = MCFGPIO_DDRG,
 225                 .podr                           = MCFGPIO_PORTG,
 226                 .ppdr                           = MCFGPIO_PORTGP,
 227                 .setr                           = MCFGPIO_SETG,
 228                 .clrr                           = MCFGPIO_CLRG,
 229         },
 230         {
 231                 .gpio_chip                      = {
 232                         .label                  = "H",
 233                         .request                = mcf_gpio_request,
 234                         .free                   = mcf_gpio_free,
 235                         .direction_input        = mcf_gpio_direction_input,
 236                         .direction_output       = mcf_gpio_direction_output,
 237                         .get                    = mcf_gpio_get_value,
 238                         .set                    = mcf_gpio_set_value_fast,
 239                         .base                   = 96,
 240                         .ngpio                  = 8,
 241                 },
 242                 .pddr                           = MCFGPIO_DDRH,
 243                 .podr                           = MCFGPIO_PORTH,
 244                 .ppdr                           = MCFGPIO_PORTHP,
 245                 .setr                           = MCFGPIO_SETH,
 246                 .clrr                           = MCFGPIO_CLRH,
 247         },
 248         {
 249                 .gpio_chip                      = {
 250                         .label                  = "J",
 251                         .request                = mcf_gpio_request,
 252                         .free                   = mcf_gpio_free,
 253                         .direction_input        = mcf_gpio_direction_input,
 254                         .direction_output       = mcf_gpio_direction_output,
 255                         .get                    = mcf_gpio_get_value,
 256                         .set                    = mcf_gpio_set_value_fast,
 257                         .base                   = 104,
 258                         .ngpio                  = 8,
 259                 },
 260                 .pddr                           = MCFGPIO_DDRJ,
 261                 .podr                           = MCFGPIO_PORTJ,
 262                 .ppdr                           = MCFGPIO_PORTJP,
 263                 .setr                           = MCFGPIO_SETJ,
 264                 .clrr                           = MCFGPIO_CLRJ,
 265         },
 266         {
 267                 .gpio_chip                      = {
 268                         .label                  = "DD",
 269                         .request                = mcf_gpio_request,
 270                         .free                   = mcf_gpio_free,
 271                         .direction_input        = mcf_gpio_direction_input,
 272                         .direction_output       = mcf_gpio_direction_output,
 273                         .get                    = mcf_gpio_get_value,
 274                         .set                    = mcf_gpio_set_value_fast,
 275                         .base                   = 112,
 276                         .ngpio                  = 8,
 277                 },
 278                 .pddr                           = MCFGPIO_DDRDD,
 279                 .podr                           = MCFGPIO_PORTDD,
 280                 .ppdr                           = MCFGPIO_PORTDDP,
 281                 .setr                           = MCFGPIO_SETDD,
 282                 .clrr                           = MCFGPIO_CLRDD,
 283         },
 284         {
 285                 .gpio_chip                      = {
 286                         .label                  = "EH",
 287                         .request                = mcf_gpio_request,
 288                         .free                   = mcf_gpio_free,
 289                         .direction_input        = mcf_gpio_direction_input,
 290                         .direction_output       = mcf_gpio_direction_output,
 291                         .get                    = mcf_gpio_get_value,
 292                         .set                    = mcf_gpio_set_value_fast,
 293                         .base                   = 120,
 294                         .ngpio                  = 8,
 295                 },
 296                 .pddr                           = MCFGPIO_DDREH,
 297                 .podr                           = MCFGPIO_PORTEH,
 298                 .ppdr                           = MCFGPIO_PORTEHP,
 299                 .setr                           = MCFGPIO_SETEH,
 300                 .clrr                           = MCFGPIO_CLREH,
 301         },
 302         {
 303                 .gpio_chip                      = {
 304                         .label                  = "EL",
 305                         .request                = mcf_gpio_request,
 306                         .free                   = mcf_gpio_free,
 307                         .direction_input        = mcf_gpio_direction_input,
 308                         .direction_output       = mcf_gpio_direction_output,
 309                         .get                    = mcf_gpio_get_value,
 310                         .set                    = mcf_gpio_set_value_fast,
 311                         .base                   = 128,
 312                         .ngpio                  = 8,
 313                 },
 314                 .pddr                           = MCFGPIO_DDREL,
 315                 .podr                           = MCFGPIO_PORTEL,
 316                 .ppdr                           = MCFGPIO_PORTELP,
 317                 .setr                           = MCFGPIO_SETEL,
 318                 .clrr                           = MCFGPIO_CLREL,
 319         },
 320         {
 321                 .gpio_chip                      = {
 322                         .label                  = "AS",
 323                         .request                = mcf_gpio_request,
 324                         .free                   = mcf_gpio_free,
 325                         .direction_input        = mcf_gpio_direction_input,
 326                         .direction_output       = mcf_gpio_direction_output,
 327                         .get                    = mcf_gpio_get_value,
 328                         .set                    = mcf_gpio_set_value_fast,
 329                         .base                   = 136,
 330                         .ngpio                  = 6,
 331                 },
 332                 .pddr                           = MCFGPIO_DDRAS,
 333                 .podr                           = MCFGPIO_PORTAS,
 334                 .ppdr                           = MCFGPIO_PORTASP,
 335                 .setr                           = MCFGPIO_SETAS,
 336                 .clrr                           = MCFGPIO_CLRAS,
 337         },
 338         {
 339                 .gpio_chip                      = {
 340                         .label                  = "QS",
 341                         .request                = mcf_gpio_request,
 342                         .free                   = mcf_gpio_free,
 343                         .direction_input        = mcf_gpio_direction_input,
 344                         .direction_output       = mcf_gpio_direction_output,
 345                         .get                    = mcf_gpio_get_value,
 346                         .set                    = mcf_gpio_set_value_fast,
 347                         .base                   = 144,
 348                         .ngpio                  = 7,
 349                 },
 350                 .pddr                           = MCFGPIO_DDRQS,
 351                 .podr                           = MCFGPIO_PORTQS,
 352                 .ppdr                           = MCFGPIO_PORTQSP,
 353                 .setr                           = MCFGPIO_SETQS,
 354                 .clrr                           = MCFGPIO_CLRQS,
 355         },
 356         {
 357                 .gpio_chip                      = {
 358                         .label                  = "SD",
 359                         .request                = mcf_gpio_request,
 360                         .free                   = mcf_gpio_free,
 361                         .direction_input        = mcf_gpio_direction_input,
 362                         .direction_output       = mcf_gpio_direction_output,
 363                         .get                    = mcf_gpio_get_value,
 364                         .set                    = mcf_gpio_set_value_fast,
 365                         .base                   = 152,
 366                         .ngpio                  = 6,
 367                 },
 368                 .pddr                           = MCFGPIO_DDRSD,
 369                 .podr                           = MCFGPIO_PORTSD,
 370                 .ppdr                           = MCFGPIO_PORTSDP,
 371                 .setr                           = MCFGPIO_SETSD,
 372                 .clrr                           = MCFGPIO_CLRSD,
 373         },
 374         {
 375                 .gpio_chip                      = {
 376                         .label                  = "TC",
 377                         .request                = mcf_gpio_request,
 378                         .free                   = mcf_gpio_free,
 379                         .direction_input        = mcf_gpio_direction_input,
 380                         .direction_output       = mcf_gpio_direction_output,
 381                         .get                    = mcf_gpio_get_value,
 382                         .set                    = mcf_gpio_set_value_fast,
 383                         .base                   = 160,
 384                         .ngpio                  = 4,
 385                 },
 386                 .pddr                           = MCFGPIO_DDRTC,
 387                 .podr                           = MCFGPIO_PORTTC,
 388                 .ppdr                           = MCFGPIO_PORTTCP,
 389                 .setr                           = MCFGPIO_SETTC,
 390                 .clrr                           = MCFGPIO_CLRTC,
 391         },
 392         {
 393                 .gpio_chip                      = {
 394                         .label                  = "TD",
 395                         .request                = mcf_gpio_request,
 396                         .free                   = mcf_gpio_free,
 397                         .direction_input        = mcf_gpio_direction_input,
 398                         .direction_output       = mcf_gpio_direction_output,
 399                         .get                    = mcf_gpio_get_value,
 400                         .set                    = mcf_gpio_set_value_fast,
 401                         .base                   = 168,
 402                         .ngpio                  = 4,
 403                 },
 404                 .pddr                           = MCFGPIO_DDRTD,
 405                 .podr                           = MCFGPIO_PORTTD,
 406                 .ppdr                           = MCFGPIO_PORTTDP,
 407                 .setr                           = MCFGPIO_SETTD,
 408                 .clrr                           = MCFGPIO_CLRTD,
 409         },
 410         {
 411                 .gpio_chip                      = {
 412                         .label                  = "UA",
 413                         .request                = mcf_gpio_request,
 414                         .free                   = mcf_gpio_free,
 415                         .direction_input        = mcf_gpio_direction_input,
 416                         .direction_output       = mcf_gpio_direction_output,
 417                         .get                    = mcf_gpio_get_value,
 418                         .set                    = mcf_gpio_set_value_fast,
 419                         .base                   = 176,
 420                         .ngpio                  = 4,
 421                 },
 422                 .pddr                           = MCFGPIO_DDRUA,
 423                 .podr                           = MCFGPIO_PORTUA,
 424                 .ppdr                           = MCFGPIO_PORTUAP,
 425                 .setr                           = MCFGPIO_SETUA,
 426                 .clrr                           = MCFGPIO_CLRUA,
 427         },
 428 };
 429
 430 static int __init mcf_gpio_init(void)
 431 {
 432         unsigned i = 0;
 433         while (i < ARRAY_SIZE(mcf_gpio_chips))
 434                 (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
 435         return 0;
 436 }
 437
 438 core_initcall(mcf_gpio_init);