arch/m68knommu/platform/532x/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                  = "PIRQ",
  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                         .ngpio                  = 8,
  34                 },
  35                 .pddr                           = MCFEPORT_EPDDR,
  36                 .podr                           = MCFEPORT_EPDR,
  37                 .ppdr                           = MCFEPORT_EPPDR,
  38         },
  39         {
  40                 .gpio_chip                      = {
  41                         .label                  = "FECH",
  42                         .request                = mcf_gpio_request,
  43                         .free                   = mcf_gpio_free,
  44                         .direction_input        = mcf_gpio_direction_input,
  45                         .direction_output       = mcf_gpio_direction_output,
  46                         .get                    = mcf_gpio_get_value,
  47                         .set                    = mcf_gpio_set_value_fast,
  48                         .base                   = 8,
  49                         .ngpio                  = 8,
  50                 },
  51                 .pddr                           = MCFGPIO_PDDR_FECH,
  52                 .podr                           = MCFGPIO_PODR_FECH,
  53                 .ppdr                           = MCFGPIO_PPDSDR_FECH,
  54                 .setr                           = MCFGPIO_PPDSDR_FECH,
  55                 .clrr                           = MCFGPIO_PCLRR_FECH,
  56         },
  57         {
  58                 .gpio_chip                      = {
  59                         .label                  = "FECL",
  60                         .request                = mcf_gpio_request,
  61                         .free                   = mcf_gpio_free,
  62                         .direction_input        = mcf_gpio_direction_input,
  63                         .direction_output       = mcf_gpio_direction_output,
  64                         .get                    = mcf_gpio_get_value,
  65                         .set                    = mcf_gpio_set_value_fast,
  66                         .base                   = 16,
  67                         .ngpio                  = 8,
  68                 },
  69                 .pddr                           = MCFGPIO_PDDR_FECL,
  70                 .podr                           = MCFGPIO_PODR_FECL,
  71                 .ppdr                           = MCFGPIO_PPDSDR_FECL,
  72                 .setr                           = MCFGPIO_PPDSDR_FECL,
  73                 .clrr                           = MCFGPIO_PCLRR_FECL,
  74         },
  75         {
  76                 .gpio_chip                      = {
  77                         .label                  = "SSI",
  78                         .request                = mcf_gpio_request,
  79                         .free                   = mcf_gpio_free,
  80                         .direction_input        = mcf_gpio_direction_input,
  81                         .direction_output       = mcf_gpio_direction_output,
  82                         .get                    = mcf_gpio_get_value,
  83                         .set                    = mcf_gpio_set_value_fast,
  84                         .base                   = 24,
  85                         .ngpio                  = 5,
  86                 },
  87                 .pddr                           = MCFGPIO_PDDR_SSI,
  88                 .podr                           = MCFGPIO_PODR_SSI,
  89                 .ppdr                           = MCFGPIO_PPDSDR_SSI,
  90                 .setr                           = MCFGPIO_PPDSDR_SSI,
  91                 .clrr                           = MCFGPIO_PCLRR_SSI,
  92         },
  93         {
  94                 .gpio_chip                      = {
  95                         .label                  = "BUSCTL",
  96                         .request                = mcf_gpio_request,
  97                         .free                   = mcf_gpio_free,
  98                         .direction_input        = mcf_gpio_direction_input,
  99                         .direction_output       = mcf_gpio_direction_output,
 100                         .get                    = mcf_gpio_get_value,
 101                         .set                    = mcf_gpio_set_value_fast,
 102                         .base                   = 32,
 103                         .ngpio                  = 4,
 104                 },
 105                 .pddr                           = MCFGPIO_PDDR_BUSCTL,
 106                 .podr                           = MCFGPIO_PODR_BUSCTL,
 107                 .ppdr                           = MCFGPIO_PPDSDR_BUSCTL,
 108                 .setr                           = MCFGPIO_PPDSDR_BUSCTL,
 109                 .clrr                           = MCFGPIO_PCLRR_BUSCTL,
 110         },
 111         {
 112                 .gpio_chip                      = {
 113                         .label                  = "BE",
 114                         .request                = mcf_gpio_request,
 115                         .free                   = mcf_gpio_free,
 116                         .direction_input        = mcf_gpio_direction_input,
 117                         .direction_output       = mcf_gpio_direction_output,
 118                         .get                    = mcf_gpio_get_value,
 119                         .set                    = mcf_gpio_set_value_fast,
 120                         .base                   = 40,
 121                         .ngpio                  = 4,
 122                 },
 123                 .pddr                           = MCFGPIO_PDDR_BE,
 124                 .podr                           = MCFGPIO_PODR_BE,
 125                 .ppdr                           = MCFGPIO_PPDSDR_BE,
 126                 .setr                           = MCFGPIO_PPDSDR_BE,
 127                 .clrr                           = MCFGPIO_PCLRR_BE,
 128         },
 129         {
 130                 .gpio_chip                      = {
 131                         .label                  = "CS",
 132                         .request                = mcf_gpio_request,
 133                         .free                   = mcf_gpio_free,
 134                         .direction_input        = mcf_gpio_direction_input,
 135                         .direction_output       = mcf_gpio_direction_output,
 136                         .get                    = mcf_gpio_get_value,
 137                         .set                    = mcf_gpio_set_value_fast,
 138                         .base                   = 49,
 139                         .ngpio                  = 5,
 140                 },
 141                 .pddr                           = MCFGPIO_PDDR_CS,
 142                 .podr                           = MCFGPIO_PODR_CS,
 143                 .ppdr                           = MCFGPIO_PPDSDR_CS,
 144                 .setr                           = MCFGPIO_PPDSDR_CS,
 145                 .clrr                           = MCFGPIO_PCLRR_CS,
 146         },
 147         {
 148                 .gpio_chip                      = {
 149                         .label                  = "PWM",
 150                         .request                = mcf_gpio_request,
 151                         .free                   = mcf_gpio_free,
 152                         .direction_input        = mcf_gpio_direction_input,
 153                         .direction_output       = mcf_gpio_direction_output,
 154                         .get                    = mcf_gpio_get_value,
 155                         .set                    = mcf_gpio_set_value_fast,
 156                         .base                   = 58,
 157                         .ngpio                  = 4,
 158                 },
 159                 .pddr                           = MCFGPIO_PDDR_PWM,
 160                 .podr                           = MCFGPIO_PODR_PWM,
 161                 .ppdr                           = MCFGPIO_PPDSDR_PWM,
 162                 .setr                           = MCFGPIO_PPDSDR_PWM,
 163                 .clrr                           = MCFGPIO_PCLRR_PWM,
 164         },
 165         {
 166                 .gpio_chip                      = {
 167                         .label                  = "FECI2C",
 168                         .request                = mcf_gpio_request,
 169                         .free                   = mcf_gpio_free,
 170                         .direction_input        = mcf_gpio_direction_input,
 171                         .direction_output       = mcf_gpio_direction_output,
 172                         .get                    = mcf_gpio_get_value,
 173                         .set                    = mcf_gpio_set_value_fast,
 174                         .base                   = 64,
 175                         .ngpio                  = 4,
 176                 },
 177                 .pddr                           = MCFGPIO_PDDR_FECI2C,
 178                 .podr                           = MCFGPIO_PODR_FECI2C,
 179                 .ppdr                           = MCFGPIO_PPDSDR_FECI2C,
 180                 .setr                           = MCFGPIO_PPDSDR_FECI2C,
 181                 .clrr                           = MCFGPIO_PCLRR_FECI2C,
 182         },
 183         {
 184                 .gpio_chip                      = {
 185                         .label                  = "UART",
 186                         .request                = mcf_gpio_request,
 187                         .free                   = mcf_gpio_free,
 188                         .direction_input        = mcf_gpio_direction_input,
 189                         .direction_output       = mcf_gpio_direction_output,
 190                         .get                    = mcf_gpio_get_value,
 191                         .set                    = mcf_gpio_set_value_fast,
 192                         .base                   = 72,
 193                         .ngpio                  = 8,
 194                 },
 195                 .pddr                           = MCFGPIO_PDDR_UART,
 196                 .podr                           = MCFGPIO_PODR_UART,
 197                 .ppdr                           = MCFGPIO_PPDSDR_UART,
 198                 .setr                           = MCFGPIO_PPDSDR_UART,
 199                 .clrr                           = MCFGPIO_PCLRR_UART,
 200         },
 201         {
 202                 .gpio_chip                      = {
 203                         .label                  = "QSPI",
 204                         .request                = mcf_gpio_request,
 205                         .free                   = mcf_gpio_free,
 206                         .direction_input        = mcf_gpio_direction_input,
 207                         .direction_output       = mcf_gpio_direction_output,
 208                         .get                    = mcf_gpio_get_value,
 209                         .set                    = mcf_gpio_set_value_fast,
 210                         .base                   = 80,
 211                         .ngpio                  = 6,
 212                 },
 213                 .pddr                           = MCFGPIO_PDDR_QSPI,
 214                 .podr                           = MCFGPIO_PODR_QSPI,
 215                 .ppdr                           = MCFGPIO_PPDSDR_QSPI,
 216                 .setr                           = MCFGPIO_PPDSDR_QSPI,
 217                 .clrr                           = MCFGPIO_PCLRR_QSPI,
 218         },
 219         {
 220                 .gpio_chip                      = {
 221                         .label                  = "TIMER",
 222                         .request                = mcf_gpio_request,
 223                         .free                   = mcf_gpio_free,
 224                         .direction_input        = mcf_gpio_direction_input,
 225                         .direction_output       = mcf_gpio_direction_output,
 226                         .get                    = mcf_gpio_get_value,
 227                         .set                    = mcf_gpio_set_value_fast,
 228                         .base                   = 88,
 229                         .ngpio                  = 4,
 230                 },
 231                 .pddr                           = MCFGPIO_PDDR_TIMER,
 232                 .podr                           = MCFGPIO_PODR_TIMER,
 233                 .ppdr                           = MCFGPIO_PPDSDR_TIMER,
 234                 .setr                           = MCFGPIO_PPDSDR_TIMER,
 235                 .clrr                           = MCFGPIO_PCLRR_TIMER,
 236         },
 237         {
 238                 .gpio_chip                      = {
 239                         .label                  = "LCDDATAH",
 240                         .request                = mcf_gpio_request,
 241                         .free                   = mcf_gpio_free,
 242                         .direction_input        = mcf_gpio_direction_input,
 243                         .direction_output       = mcf_gpio_direction_output,
 244                         .get                    = mcf_gpio_get_value,
 245                         .set                    = mcf_gpio_set_value_fast,
 246                         .base                   = 96,
 247                         .ngpio                  = 2,
 248                 },
 249                 .pddr                           = MCFGPIO_PDDR_LCDDATAH,
 250                 .podr                           = MCFGPIO_PODR_LCDDATAH,
 251                 .ppdr                           = MCFGPIO_PPDSDR_LCDDATAH,
 252                 .setr                           = MCFGPIO_PPDSDR_LCDDATAH,
 253                 .clrr                           = MCFGPIO_PCLRR_LCDDATAH,
 254         },
 255         {
 256                 .gpio_chip                      = {
 257                         .label                  = "LCDDATAM",
 258                         .request                = mcf_gpio_request,
 259                         .free                   = mcf_gpio_free,
 260                         .direction_input        = mcf_gpio_direction_input,
 261                         .direction_output       = mcf_gpio_direction_output,
 262                         .get                    = mcf_gpio_get_value,
 263                         .set                    = mcf_gpio_set_value_fast,
 264                         .base                   = 104,
 265                         .ngpio                  = 8,
 266                 },
 267                 .pddr                           = MCFGPIO_PDDR_LCDDATAM,
 268                 .podr                           = MCFGPIO_PODR_LCDDATAM,
 269                 .ppdr                           = MCFGPIO_PPDSDR_LCDDATAM,
 270                 .setr                           = MCFGPIO_PPDSDR_LCDDATAM,
 271                 .clrr                           = MCFGPIO_PCLRR_LCDDATAM,
 272         },
 273         {
 274                 .gpio_chip                      = {
 275                         .label                  = "LCDDATAL",
 276                         .request                = mcf_gpio_request,
 277                         .free                   = mcf_gpio_free,
 278                         .direction_input        = mcf_gpio_direction_input,
 279                         .direction_output       = mcf_gpio_direction_output,
 280                         .get                    = mcf_gpio_get_value,
 281                         .set                    = mcf_gpio_set_value_fast,
 282                         .base                   = 112,
 283                         .ngpio                  = 8,
 284                 },
 285                 .pddr                           = MCFGPIO_PDDR_LCDDATAL,
 286                 .podr                           = MCFGPIO_PODR_LCDDATAL,
 287                 .ppdr                           = MCFGPIO_PPDSDR_LCDDATAL,
 288                 .setr                           = MCFGPIO_PPDSDR_LCDDATAL,
 289                 .clrr                           = MCFGPIO_PCLRR_LCDDATAL,
 290         },
 291         {
 292                 .gpio_chip                      = {
 293                         .label                  = "LCDCTLH",
 294                         .request                = mcf_gpio_request,
 295                         .free                   = mcf_gpio_free,
 296                         .direction_input        = mcf_gpio_direction_input,
 297                         .direction_output       = mcf_gpio_direction_output,
 298                         .get                    = mcf_gpio_get_value,
 299                         .set                    = mcf_gpio_set_value_fast,
 300                         .base                   = 120,
 301                         .ngpio                  = 1,
 302                 },
 303                 .pddr                           = MCFGPIO_PDDR_LCDCTLH,
 304                 .podr                           = MCFGPIO_PODR_LCDCTLH,
 305                 .ppdr                           = MCFGPIO_PPDSDR_LCDCTLH,
 306                 .setr                           = MCFGPIO_PPDSDR_LCDCTLH,
 307                 .clrr                           = MCFGPIO_PCLRR_LCDCTLH,
 308         },
 309         {
 310                 .gpio_chip                      = {
 311                         .label                  = "LCDCTLL",
 312                         .request                = mcf_gpio_request,
 313                         .free                   = mcf_gpio_free,
 314                         .direction_input        = mcf_gpio_direction_input,
 315                         .direction_output       = mcf_gpio_direction_output,
 316                         .get                    = mcf_gpio_get_value,
 317                         .set                    = mcf_gpio_set_value_fast,
 318                         .base                   = 128,
 319                         .ngpio                  = 8,
 320                 },
 321                 .pddr                           = MCFGPIO_PDDR_LCDCTLL,
 322                 .podr                           = MCFGPIO_PODR_LCDCTLL,
 323                 .ppdr                           = MCFGPIO_PPDSDR_LCDCTLL,
 324                 .setr                           = MCFGPIO_PPDSDR_LCDCTLL,
 325                 .clrr                           = MCFGPIO_PCLRR_LCDCTLL,
 326         },
 327 };
 328
 329 static int __init mcf_gpio_init(void)
 330 {
 331         unsigned i = 0;
 332         while (i < ARRAY_SIZE(mcf_gpio_chips))
 333                 (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
 334         return 0;
 335 }
 336
 337 core_initcall(mcf_gpio_init);