arch/m32r/kernel/io_m32700ut.c

   1 /*
   2  *  linux/arch/m32r/kernel/io_m32700ut.c
   3  *
   4  *  Typical I/O routines for M32700UT board.
   5  *
   6  *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
   7  *                           Hitoshi Yamamoto, Takeo Takahashi
   8  *
   9  *  This file is subject to the terms and conditions of the GNU General
  10  *  Public License.  See the file "COPYING" in the main directory of this
  11  *  archive for more details.
  12  */
  13
  14 #include <linux/config.h>
  15 #include <asm/m32r.h>
  16 #include <asm/page.h>
  17 #include <asm/io.h>
  18 #include <asm/byteorder.h>
  19
  20 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
  21 #include <linux/types.h>
  22
  23 #define M32R_PCC_IOMAP_SIZE 0x1000
  24
  25 #define M32R_PCC_IOSTART0 0x1000
  26 #define M32R_PCC_IOEND0   (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
  27
  28 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
  29 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
  30 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
  31 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
  32 #endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
  33
  34 #define PORT2ADDR(port)         _port2addr(port)
  35 #define PORT2ADDR_USB(port)     _port2addr_usb(port)
  36
  37 static inline void *_port2addr(unsigned long port)
  38 {
  39         return (void *)(port | NONCACHE_OFFSET);
  40 }
  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 *)(0x0c002000 | NONCACHE_OFFSET);
  49         case 0x1f1:     return (void *)(0x0c012800 | NONCACHE_OFFSET);
  50         case 0x1f2:     return (void *)(0x0c012002 | NONCACHE_OFFSET);
  51         case 0x1f3:     return (void *)(0x0c012802 | NONCACHE_OFFSET);
  52         case 0x1f4:     return (void *)(0x0c012004 | NONCACHE_OFFSET);
  53         case 0x1f5:     return (void *)(0x0c012804 | NONCACHE_OFFSET);
  54         case 0x1f6:     return (void *)(0x0c012006 | NONCACHE_OFFSET);
  55         case 0x1f7:     return (void *)(0x0c012806 | NONCACHE_OFFSET);
  56         case 0x3f6:     return (void *)(0x0c01200e | NONCACHE_OFFSET);
  57         default:        return (void *)&dummy_reg;
  58         }
  59 }
  60 #endif
  61
  62 /*
  63  * M32700UT-LAN is located in the extended bus space
  64  * from 0x10000000 to 0x13ffffff on physical address.
  65  * The base address of LAN controller(LAN91C111) is 0x300.
  66  */
  67 #define LAN_IOSTART     (0x300 | NONCACHE_OFFSET)
  68 #define LAN_IOEND       (0x320 | NONCACHE_OFFSET)
  69 static inline void *_port2addr_ne(unsigned long port)
  70 {
  71         return (void *)(port + 0x10000000);
  72 }
  73 static inline void *_port2addr_usb(unsigned long port)
  74 {
  75         return (void *)((port & 0x0f) + NONCACHE_OFFSET + 0x10303000);
  76 }
  77
  78 static inline void delay(void)
  79 {
  80         __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
  81 }
  82
  83 /*
  84  * NIC I/O function
  85  */
  86
  87 #define PORT2ADDR_NE(port)  _port2addr_ne(port)
  88
  89 static inline unsigned char _ne_inb(void *portp)
  90 {
  91         return *(volatile unsigned char *)portp;
  92 }
  93
  94 static inline unsigned short _ne_inw(void *portp)
  95 {
  96         return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
  97 }
  98
  99 static inline void _ne_insb(void *portp, void *addr, unsigned long count)
 100 {
 101         unsigned char *buf = (unsigned char *)addr;
 102
 103         while (count--)
 104                 *buf++ = _ne_inb(portp);
 105 }
 106
 107 static inline void _ne_outb(unsigned char b, void *portp)
 108 {
 109         *(volatile unsigned char *)portp = b;
 110 }
 111
 112 static inline void _ne_outw(unsigned short w, void *portp)
 113 {
 114         *(volatile unsigned short *)portp = cpu_to_le16(w);
 115 }
 116
 117 unsigned char _inb(unsigned long port)
 118 {
 119         if (port >= LAN_IOSTART && port < LAN_IOEND)
 120                 return _ne_inb(PORT2ADDR_NE(port));
 121
 122 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 123         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 124                 return *(volatile unsigned char *)__port2addr_ata(port);
 125         }
 126 #endif
 127 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 128         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 129                 unsigned char b;
 130                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 131                 return b;
 132         } else
 133 #endif
 134
 135         return *(volatile unsigned char *)PORT2ADDR(port);
 136 }
 137
 138 unsigned short _inw(unsigned long port)
 139 {
 140         if (port >= LAN_IOSTART && port < LAN_IOEND)
 141                 return _ne_inw(PORT2ADDR_NE(port));
 142 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 143         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 144                 return *(volatile unsigned short *)__port2addr_ata(port);
 145         }
 146 #endif
 147 #if defined(CONFIG_USB)
 148         else if(port >= 0x340 && port < 0x3a0)
 149                 return *(volatile unsigned short *)PORT2ADDR_USB(port);
 150 #endif
 151 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 152         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 153                 unsigned short w;
 154                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 155                 return w;
 156         } else
 157 #endif
 158         return *(volatile unsigned short *)PORT2ADDR(port);
 159 }
 160
 161 unsigned long _inl(unsigned long port)
 162 {
 163 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 164         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 165                 unsigned long l;
 166                 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
 167                 return l;
 168         } else
 169 #endif
 170         return *(volatile unsigned long *)PORT2ADDR(port);
 171 }
 172
 173 unsigned char _inb_p(unsigned long port)
 174 {
 175         unsigned char v = _inb(port);
 176         delay();
 177         return (v);
 178 }
 179
 180 unsigned short _inw_p(unsigned long port)
 181 {
 182         unsigned short v = _inw(port);
 183         delay();
 184         return (v);
 185 }
 186
 187 unsigned long _inl_p(unsigned long port)
 188 {
 189         unsigned long v = _inl(port);
 190         delay();
 191         return (v);
 192 }
 193
 194 void _outb(unsigned char b, unsigned long port)
 195 {
 196         if (port >= LAN_IOSTART && port < LAN_IOEND)
 197                 _ne_outb(b, PORT2ADDR_NE(port));
 198         else
 199 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 200         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 201                 *(volatile unsigned char *)__port2addr_ata(port) = b;
 202         } else
 203 #endif
 204 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 205         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 206                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 207         } else
 208 #endif
 209                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 210 }
 211
 212 void _outw(unsigned short w, unsigned long port)
 213 {
 214         if (port >= LAN_IOSTART && port < LAN_IOEND)
 215                 _ne_outw(w, PORT2ADDR_NE(port));
 216         else
 217 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 218         if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 219                 *(volatile unsigned short *)__port2addr_ata(port) = w;
 220         } else
 221 #endif
 222 #if defined(CONFIG_USB)
 223         if(port >= 0x340 && port < 0x3a0)
 224                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 225         else
 226 #endif
 227 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 228         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 229                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 230         } else
 231 #endif
 232                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 233 }
 234
 235 void _outl(unsigned long l, unsigned long port)
 236 {
 237 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 238         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 239                 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
 240         } else
 241 #endif
 242         *(volatile unsigned long *)PORT2ADDR(port) = l;
 243 }
 244
 245 void _outb_p(unsigned char b, unsigned long port)
 246 {
 247         _outb(b, port);
 248         delay();
 249 }
 250
 251 void _outw_p(unsigned short w, unsigned long port)
 252 {
 253         _outw(w, port);
 254         delay();
 255 }
 256
 257 void _outl_p(unsigned long l, unsigned long port)
 258 {
 259         _outl(l, port);
 260         delay();
 261 }
 262
 263 void _insb(unsigned int port, void *addr, unsigned long count)
 264 {
 265         if (port >= LAN_IOSTART && port < LAN_IOEND)
 266                 _ne_insb(PORT2ADDR_NE(port), addr, count);
 267 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 268         else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 269                 unsigned char *buf = addr;
 270                 unsigned char *portp = __port2addr_ata(port);
 271                 while (count--)
 272                         *buf++ = *(volatile unsigned char *)portp;
 273         }
 274 #endif
 275 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 276         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 277                 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
 278                                 count, 1);
 279         }
 280 #endif
 281         else {
 282                 unsigned char *buf = addr;
 283                 unsigned char *portp = PORT2ADDR(port);
 284                 while (count--)
 285                         *buf++ = *(volatile unsigned char *)portp;
 286         }
 287 }
 288
 289 void _insw(unsigned int port, void *addr, unsigned long count)
 290 {
 291         unsigned short *buf = addr;
 292         unsigned short *portp;
 293
 294         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 295                 /*
 296                  * This portion is only used by smc91111.c to read data
 297                  * from the DATA_REG. Do not swap the data.
 298                  */
 299                 portp = PORT2ADDR_NE(port);
 300                 while (count--)
 301                         *buf++ = *(volatile unsigned short *)portp;
 302 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 303         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 304                 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
 305                                 count, 1);
 306 #endif
 307 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 308         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 309                 portp = __port2addr_ata(port);
 310                 while (count--)
 311                         *buf++ = *(volatile unsigned short *)portp;
 312 #endif
 313         } else {
 314                 portp = PORT2ADDR(port);
 315                 while (count--)
 316                         *buf++ = *(volatile unsigned short *)portp;
 317         }
 318 }
 319
 320 void _insl(unsigned int port, void *addr, unsigned long count)
 321 {
 322         unsigned long *buf = addr;
 323         unsigned long *portp;
 324
 325         portp = PORT2ADDR(port);
 326         while (count--)
 327                 *buf++ = *(volatile unsigned long *)portp;
 328 }
 329
 330 void _outsb(unsigned int port, const void *addr, unsigned long count)
 331 {
 332         const unsigned char *buf = addr;
 333         unsigned char *portp;
 334
 335         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 336                 portp = PORT2ADDR_NE(port);
 337                 while (count--)
 338                         _ne_outb(*buf++, portp);
 339 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 340         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 341                 portp = __port2addr_ata(port);
 342                 while (count--)
 343                         *(volatile unsigned char *)portp = *buf++;
 344 #endif
 345 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 346         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 347                 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
 348                                  count, 1);
 349 #endif
 350         } else {
 351                 portp = PORT2ADDR(port);
 352                 while (count--)
 353                         *(volatile unsigned char *)portp = *buf++;
 354         }
 355 }
 356
 357 void _outsw(unsigned int port, const void *addr, unsigned long count)
 358 {
 359         const unsigned short *buf = addr;
 360         unsigned short *portp;
 361
 362         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 363                 /*
 364                  * This portion is only used by smc91111.c to write data
 365                  * into the DATA_REG. Do not swap the data.
 366                  */
 367                 portp = PORT2ADDR_NE(port);
 368                 while (count--)
 369                         *(volatile unsigned short *)portp = *buf++;
 370 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 371         } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
 372                 portp = __port2addr_ata(port);
 373                 while (count--)
 374                         *(volatile unsigned short *)portp = *buf++;
 375 #endif
 376 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 377         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 378                 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
 379                                  count, 1);
 380 #endif
 381         } else {
 382                 portp = PORT2ADDR(port);
 383                 while (count--)
 384                         *(volatile unsigned short *)portp = *buf++;
 385         }
 386 }
 387
 388 void _outsl(unsigned int port, const void *addr, unsigned long count)
 389 {
 390         const unsigned long *buf = addr;
 391         unsigned char *portp;
 392
 393         portp = PORT2ADDR(port);
 394         while (count--)
 395                 *(volatile unsigned long *)portp = *buf++;
 396 }