arch/m32r/kernel/io_mappi2.c

   1 /*
   2  *  linux/arch/m32r/kernel/io_mappi2.c
   3  *
   4  *  Typical I/O routines for Mappi2 board.
   5  *
   6  *  Copyright (c) 2001-2003  Hiroyuki Kondo, Hirokazu Takata,
   7  *                           Hitoshi Yamamoto, Mamoru Sakugawa
   8  */
   9
  10 #include <linux/config.h>
  11 #include <asm/m32r.h>
  12 #include <asm/page.h>
  13 #include <asm/io.h>
  14 #include <asm/byteorder.h>
  15
  16 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
  17 #include <linux/types.h>
  18
  19 #define M32R_PCC_IOMAP_SIZE 0x1000
  20
  21 #define M32R_PCC_IOSTART0 0x1000
  22 #define M32R_PCC_IOEND0   (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
  23
  24 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
  25 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
  26 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
  27 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
  28 #endif /* CONFIG_PCMCIA && CONFIG_MAPPI2_CFC */
  29
  30 #define PORT2ADDR(port)      _port2addr(port)
  31 #define PORT2ADDR_NE(port)   _port2addr_ne(port)
  32 #define PORT2ADDR_USB(port)  _port2addr_usb(port)
  33
  34 static inline void *_port2addr(unsigned long port)
  35 {
  36         return (void *)(port + NONCACHE_OFFSET);
  37 }
  38
  39 #define LAN_IOSTART     0x300
  40 #define LAN_IOEND       0x320
  41
  42 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
  43 static inline void *__port2addr_ata(unsigned long port)
  44 {
  45         static int      dummy_reg;
  46
  47         switch (port) {
  48         case 0x1f0:     return (void *)0xac002000;
  49         case 0x1f1:     return (void *)0xac012800;
  50         case 0x1f2:     return (void *)0xac012002;
  51         case 0x1f3:     return (void *)0xac012802;
  52         case 0x1f4:     return (void *)0xac012004;
  53         case 0x1f5:     return (void *)0xac012804;
  54         case 0x1f6:     return (void *)0xac012006;
  55         case 0x1f7:     return (void *)0xac012806;
  56         case 0x3f6:     return (void *)0xac01200e;
  57         default:        return (void *)&dummy_reg;
  58         }
  59 }
  60 #endif
  61
  62 #ifdef CONFIG_CHIP_OPSP
  63 static inline void *_port2addr_ne(unsigned long port)
  64 {
  65         return (void *)(port + NONCACHE_OFFSET + 0x10000000);
  66 }
  67 #else
  68 static inline void *_port2addr_ne(unsigned long port)
  69 {
  70         return (void *)(port + NONCACHE_OFFSET + 0x04000000);
  71 }
  72 #endif
  73 static inline void *_port2addr_usb(unsigned long port)
  74 {
  75         return (void *)(port + NONCACHE_OFFSET + 0x14000000);
  76 }
  77 static inline void delay(void)
  78 {
  79         __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
  80 }
  81
  82 /*
  83  * NIC I/O function
  84  */
  85
  86 static inline unsigned char _ne_inb(void *portp)
  87 {
  88         return (unsigned char) *(volatile unsigned char *)portp;
  89 }
  90
  91 static inline unsigned short _ne_inw(void *portp)
  92 {
  93         return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
  94 }
  95
  96 static inline void _ne_insb(void *portp, void * addr, unsigned long count)
  97 {
  98         unsigned char *buf = addr;
  99
 100         while (count--)
 101                 *buf++ = *(volatile unsigned char *)portp;
 102 }
 103
 104 static inline void _ne_outb(unsigned char b, void *portp)
 105 {
 106         *(volatile unsigned char *)portp = (unsigned char)b;
 107 }
 108
 109 static inline void _ne_outw(unsigned short w, void *portp)
 110 {
 111         *(volatile unsigned short *)portp = cpu_to_le16(w);
 112 }
 113
 114 unsigned char _inb(unsigned long port)
 115 {
 116         if (port >= LAN_IOSTART && port < LAN_IOEND)
 117                 return _ne_inb(PORT2ADDR_NE(port));
 118 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 119         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 120                 return *(volatile unsigned char *)__port2addr_ata(port);
 121         }
 122 #endif
 123 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 124         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 125                 unsigned char b;
 126                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 127                 return b;
 128         } else
 129 #endif
 130
 131         return *(volatile unsigned char *)PORT2ADDR(port);
 132 }
 133
 134 unsigned short _inw(unsigned long port)
 135 {
 136         if (port >= LAN_IOSTART && port < LAN_IOEND)
 137                 return _ne_inw(PORT2ADDR_NE(port));
 138 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 139         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 140                 return *(volatile unsigned short *)__port2addr_ata(port);
 141         }
 142 #endif
 143 #if defined(CONFIG_USB)
 144         else if (port >= 0x340 && port < 0x3a0)
 145                 return *(volatile unsigned short *)PORT2ADDR_USB(port);
 146 #endif
 147
 148 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 149         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 150                 unsigned short w;
 151                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 152                 return w;
 153         } else
 154 #endif
 155         return *(volatile unsigned short *)PORT2ADDR(port);
 156 }
 157
 158 unsigned long _inl(unsigned long port)
 159 {
 160 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 161         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 162                 unsigned long l;
 163                 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
 164                 return l;
 165         } else
 166 #endif
 167         return *(volatile unsigned long *)PORT2ADDR(port);
 168 }
 169
 170 unsigned char _inb_p(unsigned long port)
 171 {
 172         unsigned char  v;
 173
 174         if (port >= LAN_IOSTART && port < LAN_IOEND)
 175                 v = _ne_inb(PORT2ADDR_NE(port));
 176         else
 177 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 178         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 179                 return *(volatile unsigned char *)__port2addr_ata(port);
 180         } else
 181 #endif
 182 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 183         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 184                 unsigned char b;
 185                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 186                 return b;
 187         } else
 188 #endif
 189                 v = *(volatile unsigned char *)PORT2ADDR(port);
 190
 191         delay();
 192         return (v);
 193 }
 194
 195 unsigned short _inw_p(unsigned long port)
 196 {
 197         unsigned short  v;
 198
 199         if (port >= LAN_IOSTART && port < LAN_IOEND)
 200                 v = _ne_inw(PORT2ADDR_NE(port));
 201         else
 202 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 203         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 204                 return *(volatile unsigned short *)__port2addr_ata(port);
 205         } else
 206 #endif
 207 #if defined(CONFIG_USB)
 208         if (port >= 0x340 && port < 0x3a0)
 209                 v = *(volatile unsigned short *)PORT2ADDR_USB(port);
 210         else
 211 #endif
 212 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 213         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 214                 unsigned short w;
 215                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 216                 return w;
 217         } else
 218 #endif
 219                 v = *(volatile unsigned short *)PORT2ADDR(port);
 220
 221         delay();
 222         return (v);
 223 }
 224
 225 unsigned long _inl_p(unsigned long port)
 226 {
 227         unsigned long  v;
 228
 229         v = *(volatile unsigned long *)PORT2ADDR(port);
 230         delay();
 231         return (v);
 232 }
 233
 234 void _outb(unsigned char b, unsigned long port)
 235 {
 236         if (port >= LAN_IOSTART && port < LAN_IOEND)
 237                 _ne_outb(b, PORT2ADDR_NE(port));
 238         else
 239 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 240         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 241                 *(volatile unsigned char *)__port2addr_ata(port) = b;
 242         } else
 243 #endif
 244 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 245         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 246                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 247         } else
 248 #endif
 249                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 250 }
 251
 252 void _outw(unsigned short w, unsigned long port)
 253 {
 254         if (port >= LAN_IOSTART && port < LAN_IOEND)
 255                 _ne_outw(w, PORT2ADDR_NE(port));
 256         else
 257 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 258         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 259                 *(volatile unsigned short *)__port2addr_ata(port) = w;
 260         } else
 261 #endif
 262 #if defined(CONFIG_USB)
 263         if (port >= 0x340 && port < 0x3a0)
 264                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 265         else
 266 #endif
 267 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 268         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 269                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 270         } else
 271 #endif
 272                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 273 }
 274
 275 void _outl(unsigned long l, unsigned long port)
 276 {
 277 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 278         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 279                 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
 280         } else
 281 #endif
 282         *(volatile unsigned long *)PORT2ADDR(port) = l;
 283 }
 284
 285 void _outb_p(unsigned char b, unsigned long port)
 286 {
 287         if (port >= LAN_IOSTART && port < LAN_IOEND)
 288                 _ne_outb(b, PORT2ADDR_NE(port));
 289         else
 290 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 291         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 292                 *(volatile unsigned char *)__port2addr_ata(port) = b;
 293         } else
 294 #endif
 295 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 296         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 297                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 298         } else
 299 #endif
 300                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 301
 302         delay();
 303 }
 304
 305 void _outw_p(unsigned short w, unsigned long port)
 306 {
 307         if (port >= LAN_IOSTART && port < LAN_IOEND)
 308                 _ne_outw(w, PORT2ADDR_NE(port));
 309         else
 310 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 311         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 312                 *(volatile unsigned short *)__port2addr_ata(port) = w;
 313         } else
 314 #endif
 315 #if defined(CONFIG_USB)
 316           if (port >= 0x340 && port < 0x3a0)
 317                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 318         else
 319 #endif
 320 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 321         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 322                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 323         } else
 324 #endif
 325                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 326
 327         delay();
 328 }
 329
 330 void _outl_p(unsigned long l, unsigned long port)
 331 {
 332         *(volatile unsigned long *)PORT2ADDR(port) = l;
 333         delay();
 334 }
 335
 336 void _insb(unsigned int port, void * addr, unsigned long count)
 337 {
 338         if (port >= LAN_IOSTART && port < LAN_IOEND)
 339                 _ne_insb(PORT2ADDR_NE(port), addr, count);
 340 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 341         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 342                 unsigned char *buf = addr;
 343                 unsigned char *portp = __port2addr_ata(port);
 344                 while (count--)
 345                         *buf++ = *(volatile unsigned char *)portp;
 346         }
 347 #endif
 348 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 349         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 350                 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
 351                                 count, 1);
 352         }
 353 #endif
 354         else {
 355                 unsigned char *buf = addr;
 356                 unsigned char *portp = PORT2ADDR(port);
 357                 while (count--)
 358                         *buf++ = *(volatile unsigned char *)portp;
 359         }
 360 }
 361
 362 void _insw(unsigned int port, void * addr, unsigned long count)
 363 {
 364         unsigned short *buf = addr;
 365         unsigned short *portp;
 366
 367         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 368                 portp = PORT2ADDR_NE(port);
 369                 while (count--)
 370                         *buf++ = *(volatile unsigned short *)portp;
 371 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 372         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 373                 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
 374                                 count, 1);
 375 #endif
 376 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 377         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 378                 portp = __port2addr_ata(port);
 379                 while (count--)
 380                         *buf++ = *(volatile unsigned short *)portp;
 381 #endif
 382         } else {
 383                 portp = PORT2ADDR(port);
 384                 while (count--)
 385                         *buf++ = *(volatile unsigned short *)portp;
 386         }
 387 }
 388
 389 void _insl(unsigned int port, void * addr, unsigned long count)
 390 {
 391         unsigned long *buf = addr;
 392         unsigned long *portp;
 393
 394         portp = PORT2ADDR(port);
 395         while (count--)
 396                 *buf++ = *(volatile unsigned long *)portp;
 397 }
 398
 399 void _outsb(unsigned int port, const void * addr, unsigned long count)
 400 {
 401         const unsigned char *buf = addr;
 402         unsigned char *portp;
 403
 404         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 405                 portp = PORT2ADDR_NE(port);
 406                 while (count--)
 407                         _ne_outb(*buf++, portp);
 408 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 409         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 410                 portp = __port2addr_ata(port);
 411                 while (count--)
 412                         *(volatile unsigned char *)portp = *buf++;
 413 #endif
 414 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 415         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 416                 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
 417                                  count, 1);
 418 #endif
 419         } else {
 420                 portp = PORT2ADDR(port);
 421                 while (count--)
 422                         *(volatile unsigned char *)portp = *buf++;
 423         }
 424 }
 425
 426 void _outsw(unsigned int port, const void * addr, unsigned long count)
 427 {
 428         const unsigned short *buf = addr;
 429         unsigned short *portp;
 430
 431         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 432                 portp = PORT2ADDR_NE(port);
 433                 while (count--)
 434                         *(volatile unsigned short *)portp = *buf++;
 435 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 436         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 437                 portp = __port2addr_ata(port);
 438                 while (count--)
 439                         *(volatile unsigned short *)portp = *buf++;
 440 #endif
 441 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 442         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 443                 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
 444                                  count, 1);
 445 #endif
 446         } else {
 447                 portp = PORT2ADDR(port);
 448                 while (count--)
 449                         *(volatile unsigned short *)portp = *buf++;
 450         }
 451 }
 452
 453 void _outsl(unsigned int port, const void * addr, unsigned long count)
 454 {
 455         const unsigned long *buf = addr;
 456         unsigned char *portp;
 457
 458         portp = PORT2ADDR(port);
 459         while (count--)
 460                 *(volatile unsigned long *)portp = *buf++;
 461 }