arch/m68k/mac/misc.c

   1 /*
   2  * Miscellaneous Mac68K-specific stuff
   3  */
   4
   5 #include <linux/types.h>
   6 #include <linux/errno.h>
   7 #include <linux/kernel.h>
   8 #include <linux/delay.h>
   9 #include <linux/sched.h>
  10 #include <linux/time.h>
  11 #include <linux/rtc.h>
  12 #include <linux/mm.h>
  13
  14 #include <linux/adb.h>
  15 #include <linux/cuda.h>
  16 #include <linux/pmu.h>
  17
  18 #include <linux/uaccess.h>
  19 #include <asm/io.h>
  20 #include <asm/segment.h>
  21 #include <asm/setup.h>
  22 #include <asm/macintosh.h>
  23 #include <asm/mac_via.h>
  24 #include <asm/mac_oss.h>
  25
  26 #include <asm/machdep.h>
  27
  28 /* Offset between Unix time (1970-based) and Mac time (1904-based) */
  29
  30 #define RTC_OFFSET 2082844800
  31
  32 static void (*rom_reset)(void);
  33
  34 #ifdef CONFIG_ADB_CUDA
  35 static long cuda_read_time(void)
  36 {
  37         struct adb_request req;
  38         long time;
  39
  40         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
  41                 return 0;
  42         while (!req.complete)
  43                 cuda_poll();
  44
  45         time = (req.reply[3] << 24) | (req.reply[4] << 16)
  46                 | (req.reply[5] << 8) | req.reply[6];
  47         return time - RTC_OFFSET;
  48 }
  49
  50 static void cuda_write_time(long data)
  51 {
  52         struct adb_request req;
  53         data += RTC_OFFSET;
  54         if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
  55                         (data >> 24) & 0xFF, (data >> 16) & 0xFF,
  56                         (data >> 8) & 0xFF, data & 0xFF) < 0)
  57                 return;
  58         while (!req.complete)
  59                 cuda_poll();
  60 }
  61
  62 static __u8 cuda_read_pram(int offset)
  63 {
  64         struct adb_request req;
  65         if (cuda_request(&req, NULL, 4, CUDA_PACKET, CUDA_GET_PRAM,
  66                         (offset >> 8) & 0xFF, offset & 0xFF) < 0)
  67                 return 0;
  68         while (!req.complete)
  69                 cuda_poll();
  70         return req.reply[3];
  71 }
  72
  73 static void cuda_write_pram(int offset, __u8 data)
  74 {
  75         struct adb_request req;
  76         if (cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_SET_PRAM,
  77                         (offset >> 8) & 0xFF, offset & 0xFF, data) < 0)
  78                 return;
  79         while (!req.complete)
  80                 cuda_poll();
  81 }
  82 #else
  83 #define cuda_read_time() 0
  84 #define cuda_write_time(n)
  85 #define cuda_read_pram NULL
  86 #define cuda_write_pram NULL
  87 #endif
  88
  89 #ifdef CONFIG_ADB_PMU68K
  90 static long pmu_read_time(void)
  91 {
  92         struct adb_request req;
  93         long time;
  94
  95         if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
  96                 return 0;
  97         while (!req.complete)
  98                 pmu_poll();
  99
 100         time = (req.reply[1] << 24) | (req.reply[2] << 16)
 101                 | (req.reply[3] << 8) | req.reply[4];
 102         return time - RTC_OFFSET;
 103 }
 104
 105 static void pmu_write_time(long data)
 106 {
 107         struct adb_request req;
 108         data += RTC_OFFSET;
 109         if (pmu_request(&req, NULL, 5, PMU_SET_RTC,
 110                         (data >> 24) & 0xFF, (data >> 16) & 0xFF,
 111                         (data >> 8) & 0xFF, data & 0xFF) < 0)
 112                 return;
 113         while (!req.complete)
 114                 pmu_poll();
 115 }
 116
 117 static __u8 pmu_read_pram(int offset)
 118 {
 119         struct adb_request req;
 120         if (pmu_request(&req, NULL, 3, PMU_READ_NVRAM,
 121                         (offset >> 8) & 0xFF, offset & 0xFF) < 0)
 122                 return 0;
 123         while (!req.complete)
 124                 pmu_poll();
 125         return req.reply[3];
 126 }
 127
 128 static void pmu_write_pram(int offset, __u8 data)
 129 {
 130         struct adb_request req;
 131         if (pmu_request(&req, NULL, 4, PMU_WRITE_NVRAM,
 132                         (offset >> 8) & 0xFF, offset & 0xFF, data) < 0)
 133                 return;
 134         while (!req.complete)
 135                 pmu_poll();
 136 }
 137 #else
 138 #define pmu_read_time() 0
 139 #define pmu_write_time(n)
 140 #define pmu_read_pram NULL
 141 #define pmu_write_pram NULL
 142 #endif
 143
 144 /*
 145  * VIA PRAM/RTC access routines
 146  *
 147  * Must be called with interrupts disabled and
 148  * the RTC should be enabled.
 149  */
 150
 151 static __u8 via_pram_readbyte(void)
 152 {
 153         int     i,reg;
 154         __u8    data;
 155
 156         reg = via1[vBufB] & ~VIA1B_vRTCClk;
 157
 158         /* Set the RTC data line to be an input. */
 159
 160         via1[vDirB] &= ~VIA1B_vRTCData;
 161
 162         /* The bits of the byte come out in MSB order */
 163
 164         data = 0;
 165         for (i = 0 ; i < 8 ; i++) {
 166                 via1[vBufB] = reg;
 167                 via1[vBufB] = reg | VIA1B_vRTCClk;
 168                 data = (data << 1) | (via1[vBufB] & VIA1B_vRTCData);
 169         }
 170
 171         /* Return RTC data line to output state */
 172
 173         via1[vDirB] |= VIA1B_vRTCData;
 174
 175         return data;
 176 }
 177
 178 static void via_pram_writebyte(__u8 data)
 179 {
 180         int     i,reg,bit;
 181
 182         reg = via1[vBufB] & ~(VIA1B_vRTCClk | VIA1B_vRTCData);
 183
 184         /* The bits of the byte go in in MSB order */
 185
 186         for (i = 0 ; i < 8 ; i++) {
 187                 bit = data & 0x80? 1 : 0;
 188                 data <<= 1;
 189                 via1[vBufB] = reg | bit;
 190                 via1[vBufB] = reg | bit | VIA1B_vRTCClk;
 191         }
 192 }
 193
 194 /*
 195  * Execute a VIA PRAM/RTC command. For read commands
 196  * data should point to a one-byte buffer for the
 197  * resulting data. For write commands it should point
 198  * to the data byte to for the command.
 199  *
 200  * This function disables all interrupts while running.
 201  */
 202
 203 static void via_pram_command(int command, __u8 *data)
 204 {
 205         unsigned long flags;
 206         int     is_read;
 207
 208         local_irq_save(flags);
 209
 210         /* Enable the RTC and make sure the strobe line is high */
 211
 212         via1[vBufB] = (via1[vBufB] | VIA1B_vRTCClk) & ~VIA1B_vRTCEnb;
 213
 214         if (command & 0xFF00) {         /* extended (two-byte) command */
 215                 via_pram_writebyte((command & 0xFF00) >> 8);
 216                 via_pram_writebyte(command & 0xFF);
 217                 is_read = command & 0x8000;
 218         } else {                        /* one-byte command */
 219                 via_pram_writebyte(command);
 220                 is_read = command & 0x80;
 221         }
 222         if (is_read) {
 223                 *data = via_pram_readbyte();
 224         } else {
 225                 via_pram_writebyte(*data);
 226         }
 227
 228         /* All done, disable the RTC */
 229
 230         via1[vBufB] |= VIA1B_vRTCEnb;
 231
 232         local_irq_restore(flags);
 233 }
 234
 235 static __u8 via_read_pram(int offset)
 236 {
 237         return 0;
 238 }
 239
 240 static void via_write_pram(int offset, __u8 data)
 241 {
 242 }
 243
 244 /*
 245  * Return the current time in seconds since January 1, 1904.
 246  *
 247  * This only works on machines with the VIA-based PRAM/RTC, which
 248  * is basically any machine with Mac II-style ADB.
 249  */
 250
 251 static long via_read_time(void)
 252 {
 253         union {
 254                 __u8 cdata[4];
 255                 long idata;
 256         } result, last_result;
 257         int count = 1;
 258
 259         via_pram_command(0x81, &last_result.cdata[3]);
 260         via_pram_command(0x85, &last_result.cdata[2]);
 261         via_pram_command(0x89, &last_result.cdata[1]);
 262         via_pram_command(0x8D, &last_result.cdata[0]);
 263
 264         /*
 265          * The NetBSD guys say to loop until you get the same reading
 266          * twice in a row.
 267          */
 268
 269         while (1) {
 270                 via_pram_command(0x81, &result.cdata[3]);
 271                 via_pram_command(0x85, &result.cdata[2]);
 272                 via_pram_command(0x89, &result.cdata[1]);
 273                 via_pram_command(0x8D, &result.cdata[0]);
 274
 275                 if (result.idata == last_result.idata)
 276                         return result.idata - RTC_OFFSET;
 277
 278                 if (++count > 10)
 279                         break;
 280
 281                 last_result.idata = result.idata;
 282         }
 283
 284         pr_err("via_read_time: failed to read a stable value; "
 285                "got 0x%08lx then 0x%08lx\n",
 286                last_result.idata, result.idata);
 287
 288         return 0;
 289 }
 290
 291 /*
 292  * Set the current time to a number of seconds since January 1, 1904.
 293  *
 294  * This only works on machines with the VIA-based PRAM/RTC, which
 295  * is basically any machine with Mac II-style ADB.
 296  */
 297
 298 static void via_write_time(long time)
 299 {
 300         union {
 301                 __u8  cdata[4];
 302                 long  idata;
 303         } data;
 304         __u8    temp;
 305
 306         /* Clear the write protect bit */
 307
 308         temp = 0x55;
 309         via_pram_command(0x35, &temp);
 310
 311         data.idata = time + RTC_OFFSET;
 312         via_pram_command(0x01, &data.cdata[3]);
 313         via_pram_command(0x05, &data.cdata[2]);
 314         via_pram_command(0x09, &data.cdata[1]);
 315         via_pram_command(0x0D, &data.cdata[0]);
 316
 317         /* Set the write protect bit */
 318
 319         temp = 0xD5;
 320         via_pram_command(0x35, &temp);
 321 }
 322
 323 static void via_shutdown(void)
 324 {
 325         if (rbv_present) {
 326                 via2[rBufB] &= ~0x04;
 327         } else {
 328                 /* Direction of vDirB is output */
 329                 via2[vDirB] |= 0x04;
 330                 /* Send a value of 0 on that line */
 331                 via2[vBufB] &= ~0x04;
 332                 mdelay(1000);
 333         }
 334 }
 335
 336 /*
 337  * FIXME: not sure how this is supposed to work exactly...
 338  */
 339
 340 static void oss_shutdown(void)
 341 {
 342         oss->rom_ctrl = OSS_POWEROFF;
 343 }
 344
 345 #ifdef CONFIG_ADB_CUDA
 346
 347 static void cuda_restart(void)
 348 {
 349         struct adb_request req;
 350         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM) < 0)
 351                 return;
 352         while (!req.complete)
 353                 cuda_poll();
 354 }
 355
 356 static void cuda_shutdown(void)
 357 {
 358         struct adb_request req;
 359         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0)
 360                 return;
 361         while (!req.complete)
 362                 cuda_poll();
 363 }
 364
 365 #endif /* CONFIG_ADB_CUDA */
 366
 367 #ifdef CONFIG_ADB_PMU68K
 368
 369 void pmu_restart(void)
 370 {
 371         struct adb_request req;
 372         if (pmu_request(&req, NULL,
 373                         2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0)
 374                 return;
 375         while (!req.complete)
 376                 pmu_poll();
 377         if (pmu_request(&req, NULL, 1, PMU_RESET) < 0)
 378                 return;
 379         while (!req.complete)
 380                 pmu_poll();
 381 }
 382
 383 void pmu_shutdown(void)
 384 {
 385         struct adb_request req;
 386         if (pmu_request(&req, NULL,
 387                         2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0)
 388                 return;
 389         while (!req.complete)
 390                 pmu_poll();
 391         if (pmu_request(&req, NULL, 5, PMU_SHUTDOWN, 'M', 'A', 'T', 'T') < 0)
 392                 return;
 393         while (!req.complete)
 394                 pmu_poll();
 395 }
 396
 397 #endif
 398
 399 /*
 400  *-------------------------------------------------------------------
 401  * Below this point are the generic routines; they'll dispatch to the
 402  * correct routine for the hardware on which we're running.
 403  *-------------------------------------------------------------------
 404  */
 405
 406 void mac_pram_read(int offset, __u8 *buffer, int len)
 407 {
 408         __u8 (*func)(int);
 409         int i;
 410
 411         switch(macintosh_config->adb_type) {
 412         case MAC_ADB_PB1:
 413         case MAC_ADB_PB2:
 414                 func = pmu_read_pram; break;
 415         case MAC_ADB_EGRET:
 416         case MAC_ADB_CUDA:
 417                 func = cuda_read_pram; break;
 418         default:
 419                 func = via_read_pram;
 420         }
 421         if (!func)
 422                 return;
 423         for (i = 0 ; i < len ; i++) {
 424                 buffer[i] = (*func)(offset++);
 425         }
 426 }
 427
 428 void mac_pram_write(int offset, __u8 *buffer, int len)
 429 {
 430         void (*func)(int, __u8);
 431         int i;
 432
 433         switch(macintosh_config->adb_type) {
 434         case MAC_ADB_PB1:
 435         case MAC_ADB_PB2:
 436                 func = pmu_write_pram; break;
 437         case MAC_ADB_EGRET:
 438         case MAC_ADB_CUDA:
 439                 func = cuda_write_pram; break;
 440         default:
 441                 func = via_write_pram;
 442         }
 443         if (!func)
 444                 return;
 445         for (i = 0 ; i < len ; i++) {
 446                 (*func)(offset++, buffer[i]);
 447         }
 448 }
 449
 450 void mac_poweroff(void)
 451 {
 452         if (oss_present) {
 453                 oss_shutdown();
 454         } else if (macintosh_config->adb_type == MAC_ADB_II) {
 455                 via_shutdown();
 456 #ifdef CONFIG_ADB_CUDA
 457         } else if (macintosh_config->adb_type == MAC_ADB_EGRET ||
 458                    macintosh_config->adb_type == MAC_ADB_CUDA) {
 459                 cuda_shutdown();
 460 #endif
 461 #ifdef CONFIG_ADB_PMU68K
 462         } else if (macintosh_config->adb_type == MAC_ADB_PB1
 463                 || macintosh_config->adb_type == MAC_ADB_PB2) {
 464                 pmu_shutdown();
 465 #endif
 466         }
 467         local_irq_enable();
 468         printk("It is now safe to turn off your Macintosh.\n");
 469         while(1);
 470 }
 471
 472 void mac_reset(void)
 473 {
 474         if (macintosh_config->adb_type == MAC_ADB_II) {
 475                 unsigned long flags;
 476
 477                 /* need ROMBASE in booter */
 478                 /* indeed, plus need to MAP THE ROM !! */
 479
 480                 if (mac_bi_data.rombase == 0)
 481                         mac_bi_data.rombase = 0x40800000;
 482
 483                 /* works on some */
 484                 rom_reset = (void *) (mac_bi_data.rombase + 0xa);
 485
 486                 if (macintosh_config->ident == MAC_MODEL_SE30) {
 487                         /*
 488                          * MSch: Machines known to crash on ROM reset ...
 489                          */
 490                 } else {
 491                         local_irq_save(flags);
 492
 493                         rom_reset();
 494
 495                         local_irq_restore(flags);
 496                 }
 497 #ifdef CONFIG_ADB_CUDA
 498         } else if (macintosh_config->adb_type == MAC_ADB_EGRET ||
 499                    macintosh_config->adb_type == MAC_ADB_CUDA) {
 500                 cuda_restart();
 501 #endif
 502 #ifdef CONFIG_ADB_PMU68K
 503         } else if (macintosh_config->adb_type == MAC_ADB_PB1
 504                 || macintosh_config->adb_type == MAC_ADB_PB2) {
 505                 pmu_restart();
 506 #endif
 507         } else if (CPU_IS_030) {
 508
 509                 /* 030-specific reset routine.  The idea is general, but the
 510                  * specific registers to reset are '030-specific.  Until I
 511                  * have a non-030 machine, I can't test anything else.
 512                  *  -- C. Scott Ananian <cananian@alumni.princeton.edu>
 513                  */
 514
 515                 unsigned long rombase = 0x40000000;
 516
 517                 /* make a 1-to-1 mapping, using the transparent tran. reg. */
 518                 unsigned long virt = (unsigned long) mac_reset;
 519                 unsigned long phys = virt_to_phys(mac_reset);
 520                 unsigned long addr = (phys&0xFF000000)|0x8777;
 521                 unsigned long offset = phys-virt;
 522                 local_irq_disable(); /* lets not screw this up, ok? */
 523                 __asm__ __volatile__(".chip 68030\n\t"
 524                                      "pmove %0,%/tt0\n\t"
 525                                      ".chip 68k"
 526                                      : : "m" (addr));
 527                 /* Now jump to physical address so we can disable MMU */
 528                 __asm__ __volatile__(
 529                     ".chip 68030\n\t"
 530                     "lea %/pc@(1f),%/a0\n\t"
 531                     "addl %0,%/a0\n\t"/* fixup target address and stack ptr */
 532                     "addl %0,%/sp\n\t"
 533                     "pflusha\n\t"
 534                     "jmp %/a0@\n\t" /* jump into physical memory */
 535                     "0:.long 0\n\t" /* a constant zero. */
 536                     /* OK.  Now reset everything and jump to reset vector. */
 537                     "1:\n\t"
 538                     "lea %/pc@(0b),%/a0\n\t"
 539                     "pmove %/a0@, %/tc\n\t" /* disable mmu */
 540                     "pmove %/a0@, %/tt0\n\t" /* disable tt0 */
 541                     "pmove %/a0@, %/tt1\n\t" /* disable tt1 */
 542                     "movel #0, %/a0\n\t"
 543                     "movec %/a0, %/vbr\n\t" /* clear vector base register */
 544                     "movec %/a0, %/cacr\n\t" /* disable caches */
 545                     "movel #0x0808,%/a0\n\t"
 546                     "movec %/a0, %/cacr\n\t" /* flush i&d caches */
 547                     "movew #0x2700,%/sr\n\t" /* set up status register */
 548                     "movel %1@(0x0),%/a0\n\t"/* load interrupt stack pointer */
 549                     "movec %/a0, %/isp\n\t"
 550                     "movel %1@(0x4),%/a0\n\t" /* load reset vector */
 551                     "reset\n\t" /* reset external devices */
 552                     "jmp %/a0@\n\t" /* jump to the reset vector */
 553                     ".chip 68k"
 554                     : : "r" (offset), "a" (rombase) : "a0");
 555         }
 556
 557         /* should never get here */
 558         local_irq_enable();
 559         printk ("Restart failed.  Please restart manually.\n");
 560         while(1);
 561 }
 562
 563 /*
 564  * This function translates seconds since 1970 into a proper date.
 565  *
 566  * Algorithm cribbed from glibc2.1, __offtime().
 567  */
 568 #define SECS_PER_MINUTE (60)
 569 #define SECS_PER_HOUR  (SECS_PER_MINUTE * 60)
 570 #define SECS_PER_DAY   (SECS_PER_HOUR * 24)
 571
 572 static void unmktime(unsigned long time, long offset,
 573                      int *yearp, int *monp, int *dayp,
 574                      int *hourp, int *minp, int *secp)
 575 {
 576         /* How many days come before each month (0-12).  */
 577         static const unsigned short int __mon_yday[2][13] =
 578         {
 579                 /* Normal years.  */
 580                 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
 581                 /* Leap years.  */
 582                 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
 583         };
 584         long int days, rem, y, wday, yday;
 585         const unsigned short int *ip;
 586
 587         days = time / SECS_PER_DAY;
 588         rem = time % SECS_PER_DAY;
 589         rem += offset;
 590         while (rem < 0) {
 591                 rem += SECS_PER_DAY;
 592                 --days;
 593         }
 594         while (rem >= SECS_PER_DAY) {
 595                 rem -= SECS_PER_DAY;
 596                 ++days;
 597         }
 598         *hourp = rem / SECS_PER_HOUR;
 599         rem %= SECS_PER_HOUR;
 600         *minp = rem / SECS_PER_MINUTE;
 601         *secp = rem % SECS_PER_MINUTE;
 602         /* January 1, 1970 was a Thursday. */
 603         wday = (4 + days) % 7; /* Day in the week. Not currently used */
 604         if (wday < 0) wday += 7;
 605         y = 1970;
 606
 607 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
 608 #define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
 609 #define __isleap(year)  \
 610   ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
 611
 612         while (days < 0 || days >= (__isleap (y) ? 366 : 365))
 613         {
 614                 /* Guess a corrected year, assuming 365 days per year.  */
 615                 long int yg = y + days / 365 - (days % 365 < 0);
 616
 617                 /* Adjust DAYS and Y to match the guessed year.  */
 618                 days -= ((yg - y) * 365
 619                          + LEAPS_THRU_END_OF (yg - 1)
 620                          - LEAPS_THRU_END_OF (y - 1));
 621                 y = yg;
 622         }
 623         *yearp = y - 1900;
 624         yday = days; /* day in the year.  Not currently used. */
 625         ip = __mon_yday[__isleap(y)];
 626         for (y = 11; days < (long int) ip[y]; --y)
 627                 continue;
 628         days -= ip[y];
 629         *monp = y;
 630         *dayp = days + 1; /* day in the month */
 631         return;
 632 }
 633
 634 /*
 635  * Read/write the hardware clock.
 636  */
 637
 638 int mac_hwclk(int op, struct rtc_time *t)
 639 {
 640         unsigned long now;
 641
 642         if (!op) { /* read */
 643                 switch (macintosh_config->adb_type) {
 644                 case MAC_ADB_II:
 645                 case MAC_ADB_IOP:
 646                         now = via_read_time();
 647                         break;
 648                 case MAC_ADB_PB1:
 649                 case MAC_ADB_PB2:
 650                         now = pmu_read_time();
 651                         break;
 652                 case MAC_ADB_EGRET:
 653                 case MAC_ADB_CUDA:
 654                         now = cuda_read_time();
 655                         break;
 656                 default:
 657                         now = 0;
 658                 }
 659
 660                 t->tm_wday = 0;
 661                 unmktime(now, 0,
 662                          &t->tm_year, &t->tm_mon, &t->tm_mday,
 663                          &t->tm_hour, &t->tm_min, &t->tm_sec);
 664 #if 0
 665                 printk("mac_hwclk: read %04d-%02d-%-2d %02d:%02d:%02d\n",
 666                         t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
 667                         t->tm_hour, t->tm_min, t->tm_sec);
 668 #endif
 669         } else { /* write */
 670 #if 0
 671                 printk("mac_hwclk: tried to write %04d-%02d-%-2d %02d:%02d:%02d\n",
 672                         t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
 673                         t->tm_hour, t->tm_min, t->tm_sec);
 674 #endif
 675
 676                 now = mktime(t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
 677                              t->tm_hour, t->tm_min, t->tm_sec);
 678
 679                 switch (macintosh_config->adb_type) {
 680                 case MAC_ADB_II:
 681                 case MAC_ADB_IOP:
 682                         via_write_time(now);
 683                         break;
 684                 case MAC_ADB_EGRET:
 685                 case MAC_ADB_CUDA:
 686                         cuda_write_time(now);
 687                         break;
 688                 case MAC_ADB_PB1:
 689                 case MAC_ADB_PB2:
 690                         pmu_write_time(now);
 691                         break;
 692                 }
 693         }
 694         return 0;
 695 }
 696
 697 /*
 698  * Set minutes/seconds in the hardware clock
 699  */
 700
 701 int mac_set_clock_mmss (unsigned long nowtime)
 702 {
 703         struct rtc_time now;
 704
 705         mac_hwclk(0, &now);
 706         now.tm_sec = nowtime % 60;
 707         now.tm_min = (nowtime / 60) % 60;
 708         mac_hwclk(1, &now);
 709
 710         return 0;
 711 }