release/src-rt-6.x.4708/linux/linux-2.6.36/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/miscdevice.h>
   8 #include <linux/kernel.h>
   9 #include <linux/delay.h>
  10 #include <linux/sched.h>
  11 #include <linux/time.h>
  12 #include <linux/rtc.h>
  13 #include <linux/mm.h>
  14
  15 #include <linux/adb.h>
  16 #include <linux/cuda.h>
  17 #include <linux/pmu.h>
  18
  19 #include <asm/uaccess.h>
  20 #include <asm/io.h>
  21 #include <asm/rtc.h>
  22 #include <asm/system.h>
  23 #include <asm/segment.h>
  24 #include <asm/setup.h>
  25 #include <asm/macintosh.h>
  26 #include <asm/mac_via.h>
  27 #include <asm/mac_oss.h>
  28
  29 #define BOOTINFO_COMPAT_1_0
  30 #include <asm/bootinfo.h>
  31 #include <asm/machdep.h>
  32
  33 /* Offset between Unix time (1970-based) and Mac time (1904-based) */
  34
  35 #define RTC_OFFSET 2082844800
  36
  37 static void (*rom_reset)(void);
  38
  39 #ifdef CONFIG_ADB_CUDA
  40 static long cuda_read_time(void)
  41 {
  42         struct adb_request req;
  43         long time;
  44
  45         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
  46                 return 0;
  47         while (!req.complete)
  48                 cuda_poll();
  49
  50         time = (req.reply[3] << 24) | (req.reply[4] << 16)
  51                 | (req.reply[5] << 8) | req.reply[6];
  52         return time - RTC_OFFSET;
  53 }
  54
  55 static void cuda_write_time(long data)
  56 {
  57         struct adb_request req;
  58         data += RTC_OFFSET;
  59         if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
  60                         (data >> 24) & 0xFF, (data >> 16) & 0xFF,
  61                         (data >> 8) & 0xFF, data & 0xFF) < 0)
  62                 return;
  63         while (!req.complete)
  64                 cuda_poll();
  65 }
  66
  67 static __u8 cuda_read_pram(int offset)
  68 {
  69         struct adb_request req;
  70         if (cuda_request(&req, NULL, 4, CUDA_PACKET, CUDA_GET_PRAM,
  71                         (offset >> 8) & 0xFF, offset & 0xFF) < 0)
  72                 return 0;
  73         while (!req.complete)
  74                 cuda_poll();
  75         return req.reply[3];
  76 }
  77
  78 static void cuda_write_pram(int offset, __u8 data)
  79 {
  80         struct adb_request req;
  81         if (cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_SET_PRAM,
  82                         (offset >> 8) & 0xFF, offset & 0xFF, data) < 0)
  83                 return;
  84         while (!req.complete)
  85                 cuda_poll();
  86 }
  87 #else
  88 #define cuda_read_time() 0
  89 #define cuda_write_time(n)
  90 #define cuda_read_pram NULL
  91 #define cuda_write_pram NULL
  92 #endif
  93
  94 #ifdef CONFIG_ADB_PMU68K
  95 static long pmu_read_time(void)
  96 {
  97         struct adb_request req;
  98         long time;
  99
 100         if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
 101                 return 0;
 102         while (!req.complete)
 103                 pmu_poll();
 104
 105         time = (req.reply[1] << 24) | (req.reply[2] << 16)
 106                 | (req.reply[3] << 8) | req.reply[4];
 107         return time - RTC_OFFSET;
 108 }
 109
 110 static void pmu_write_time(long data)
 111 {
 112         struct adb_request req;
 113         data += RTC_OFFSET;
 114         if (pmu_request(&req, NULL, 5, PMU_SET_RTC,
 115                         (data >> 24) & 0xFF, (data >> 16) & 0xFF,
 116                         (data >> 8) & 0xFF, data & 0xFF) < 0)
 117                 return;
 118         while (!req.complete)
 119                 pmu_poll();
 120 }
 121
 122 static __u8 pmu_read_pram(int offset)
 123 {
 124         struct adb_request req;
 125         if (pmu_request(&req, NULL, 3, PMU_READ_NVRAM,
 126                         (offset >> 8) & 0xFF, offset & 0xFF) < 0)
 127                 return 0;
 128         while (!req.complete)
 129                 pmu_poll();
 130         return req.reply[3];
 131 }
 132
 133 static void pmu_write_pram(int offset, __u8 data)
 134 {
 135         struct adb_request req;
 136         if (pmu_request(&req, NULL, 4, PMU_WRITE_NVRAM,
 137                         (offset >> 8) & 0xFF, offset & 0xFF, data) < 0)
 138                 return;
 139         while (!req.complete)
 140                 pmu_poll();
 141 }
 142 #else
 143 #define pmu_read_time() 0
 144 #define pmu_write_time(n)
 145 #define pmu_read_pram NULL
 146 #define pmu_write_pram NULL
 147 #endif
 148
 149 #define maciisi_read_time() 0
 150 #define maciisi_write_time(n)
 151 #define maciisi_read_pram NULL
 152 #define maciisi_write_pram NULL
 153
 154 /*
 155  * VIA PRAM/RTC access routines
 156  *
 157  * Must be called with interrupts disabled and
 158  * the RTC should be enabled.
 159  */
 160
 161 static __u8 via_pram_readbyte(void)
 162 {
 163         int     i,reg;
 164         __u8    data;
 165
 166         reg = via1[vBufB] & ~VIA1B_vRTCClk;
 167
 168         /* Set the RTC data line to be an input. */
 169
 170         via1[vDirB] &= ~VIA1B_vRTCData;
 171
 172         /* The bits of the byte come out in MSB order */
 173
 174         data = 0;
 175         for (i = 0 ; i < 8 ; i++) {
 176                 via1[vBufB] = reg;
 177                 via1[vBufB] = reg | VIA1B_vRTCClk;
 178                 data = (data << 1) | (via1[vBufB] & VIA1B_vRTCData);
 179         }
 180
 181         /* Return RTC data line to output state */
 182
 183         via1[vDirB] |= VIA1B_vRTCData;
 184
 185         return data;
 186 }
 187
 188 static void via_pram_writebyte(__u8 data)
 189 {
 190         int     i,reg,bit;
 191
 192         reg = via1[vBufB] & ~(VIA1B_vRTCClk | VIA1B_vRTCData);
 193
 194         /* The bits of the byte go in in MSB order */
 195
 196         for (i = 0 ; i < 8 ; i++) {
 197                 bit = data & 0x80? 1 : 0;
 198                 data <<= 1;
 199                 via1[vBufB] = reg | bit;
 200                 via1[vBufB] = reg | bit | VIA1B_vRTCClk;
 201         }
 202 }
 203
 204 /*
 205  * Execute a VIA PRAM/RTC command. For read commands
 206  * data should point to a one-byte buffer for the
 207  * resulting data. For write commands it should point
 208  * to the data byte to for the command.
 209  *
 210  * This function disables all interrupts while running.
 211  */
 212
 213 static void via_pram_command(int command, __u8 *data)
 214 {
 215         unsigned long flags;
 216         int     is_read;
 217
 218         local_irq_save(flags);
 219
 220         /* Enable the RTC and make sure the strobe line is high */
 221
 222         via1[vBufB] = (via1[vBufB] | VIA1B_vRTCClk) & ~VIA1B_vRTCEnb;
 223
 224         if (command & 0xFF00) {         /* extended (two-byte) command */
 225                 via_pram_writebyte((command & 0xFF00) >> 8);
 226                 via_pram_writebyte(command & 0xFF);
 227                 is_read = command & 0x8000;
 228         } else {                        /* one-byte command */
 229                 via_pram_writebyte(command);
 230                 is_read = command & 0x80;
 231         }
 232         if (is_read) {
 233                 *data = via_pram_readbyte();
 234         } else {
 235                 via_pram_writebyte(*data);
 236         }
 237
 238         /* All done, disable the RTC */
 239
 240         via1[vBufB] |= VIA1B_vRTCEnb;
 241
 242         local_irq_restore(flags);
 243 }
 244
 245 static __u8 via_read_pram(int offset)
 246 {
 247         return 0;
 248 }
 249
 250 static void via_write_pram(int offset, __u8 data)
 251 {
 252 }
 253
 254 /*
 255  * Return the current time in seconds since January 1, 1904.
 256  *
 257  * This only works on machines with the VIA-based PRAM/RTC, which
 258  * is basically any machine with Mac II-style ADB.
 259  */
 260
 261 static long via_read_time(void)
 262 {
 263         union {
 264                 __u8  cdata[4];
 265                 long  idata;
 266         } result, last_result;
 267         int     ct;
 268
 269         /*
 270          * The NetBSD guys say to loop until you get the same reading
 271          * twice in a row.
 272          */
 273
 274         ct = 0;
 275         do {
 276                 if (++ct > 10) {
 277                         printk("via_read_time: couldn't get valid time, "
 278                                "last read = 0x%08lx and 0x%08lx\n",
 279                                last_result.idata, result.idata);
 280                         break;
 281                 }
 282
 283                 last_result.idata = result.idata;
 284                 result.idata = 0;
 285
 286                 via_pram_command(0x81, &result.cdata[3]);
 287                 via_pram_command(0x85, &result.cdata[2]);
 288                 via_pram_command(0x89, &result.cdata[1]);
 289                 via_pram_command(0x8D, &result.cdata[0]);
 290         } while (result.idata != last_result.idata);
 291
 292         return result.idata - RTC_OFFSET;
 293 }
 294
 295 /*
 296  * Set the current time to a number of seconds since January 1, 1904.
 297  *
 298  * This only works on machines with the VIA-based PRAM/RTC, which
 299  * is basically any machine with Mac II-style ADB.
 300  */
 301
 302 static void via_write_time(long time)
 303 {
 304         union {
 305                 __u8  cdata[4];
 306                 long  idata;
 307         } data;
 308         __u8    temp;
 309
 310         /* Clear the write protect bit */
 311
 312         temp = 0x55;
 313         via_pram_command(0x35, &temp);
 314
 315         data.idata = time + RTC_OFFSET;
 316         via_pram_command(0x01, &data.cdata[3]);
 317         via_pram_command(0x05, &data.cdata[2]);
 318         via_pram_command(0x09, &data.cdata[1]);
 319         via_pram_command(0x0D, &data.cdata[0]);
 320
 321         /* Set the write protect bit */
 322
 323         temp = 0xD5;
 324         via_pram_command(0x35, &temp);
 325 }
 326
 327 static void via_shutdown(void)
 328 {
 329         if (rbv_present) {
 330                 via2[rBufB] &= ~0x04;
 331         } else {
 332                 /* Direction of vDirB is output */
 333                 via2[vDirB] |= 0x04;
 334                 /* Send a value of 0 on that line */
 335                 via2[vBufB] &= ~0x04;
 336                 mdelay(1000);
 337         }
 338 }
 339
 340
 341 static void oss_shutdown(void)
 342 {
 343         oss->rom_ctrl = OSS_POWEROFF;
 344 }
 345
 346 #ifdef CONFIG_ADB_CUDA
 347
 348 static void cuda_restart(void)
 349 {
 350         struct adb_request req;
 351         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM) < 0)
 352                 return;
 353         while (!req.complete)
 354                 cuda_poll();
 355 }
 356
 357 static void cuda_shutdown(void)
 358 {
 359         struct adb_request req;
 360         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0)
 361                 return;
 362         while (!req.complete)
 363                 cuda_poll();
 364 }
 365
 366 #endif /* CONFIG_ADB_CUDA */
 367
 368 #ifdef CONFIG_ADB_PMU68K
 369
 370 void pmu_restart(void)
 371 {
 372         struct adb_request req;
 373         if (pmu_request(&req, NULL,
 374                         2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0)
 375                 return;
 376         while (!req.complete)
 377                 pmu_poll();
 378         if (pmu_request(&req, NULL, 1, PMU_RESET) < 0)
 379                 return;
 380         while (!req.complete)
 381                 pmu_poll();
 382 }
 383
 384 void pmu_shutdown(void)
 385 {
 386         struct adb_request req;
 387         if (pmu_request(&req, NULL,
 388                         2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0)
 389                 return;
 390         while (!req.complete)
 391                 pmu_poll();
 392         if (pmu_request(&req, NULL, 5, PMU_SHUTDOWN, 'M', 'A', 'T', 'T') < 0)
 393                 return;
 394         while (!req.complete)
 395                 pmu_poll();
 396 }
 397
 398 #endif
 399
 400 /*
 401  *-------------------------------------------------------------------
 402  * Below this point are the generic routines; they'll dispatch to the
 403  * correct routine for the hardware on which we're running.
 404  *-------------------------------------------------------------------
 405  */
 406
 407 void mac_pram_read(int offset, __u8 *buffer, int len)
 408 {
 409         __u8 (*func)(int);
 410         int i;
 411
 412         switch(macintosh_config->adb_type) {
 413         case MAC_ADB_IISI:
 414                 func = maciisi_read_pram; break;
 415         case MAC_ADB_PB1:
 416         case MAC_ADB_PB2:
 417                 func = pmu_read_pram; break;
 418         case MAC_ADB_CUDA:
 419                 func = cuda_read_pram; break;
 420         default:
 421                 func = via_read_pram;
 422         }
 423         if (!func)
 424                 return;
 425         for (i = 0 ; i < len ; i++) {
 426                 buffer[i] = (*func)(offset++);
 427         }
 428 }
 429
 430 void mac_pram_write(int offset, __u8 *buffer, int len)
 431 {
 432         void (*func)(int, __u8);
 433         int i;
 434
 435         switch(macintosh_config->adb_type) {
 436         case MAC_ADB_IISI:
 437                 func = maciisi_write_pram; break;
 438         case MAC_ADB_PB1:
 439         case MAC_ADB_PB2:
 440                 func = pmu_write_pram; break;
 441         case MAC_ADB_CUDA:
 442                 func = cuda_write_pram; break;
 443         default:
 444                 func = via_write_pram;
 445         }
 446         if (!func)
 447                 return;
 448         for (i = 0 ; i < len ; i++) {
 449                 (*func)(offset++, buffer[i]);
 450         }
 451 }
 452
 453 void mac_poweroff(void)
 454 {
 455         /*
 456          * MAC_ADB_IISI may need to be moved up here if it doesn't actually
 457          * work using the ADB packet method.  --David Kilzer
 458          */
 459
 460         if (oss_present) {
 461                 oss_shutdown();
 462         } else if (macintosh_config->adb_type == MAC_ADB_II) {
 463                 via_shutdown();
 464 #ifdef CONFIG_ADB_CUDA
 465         } else if (macintosh_config->adb_type == MAC_ADB_CUDA) {
 466                 cuda_shutdown();
 467 #endif
 468 #ifdef CONFIG_ADB_PMU68K
 469         } else if (macintosh_config->adb_type == MAC_ADB_PB1
 470                 || macintosh_config->adb_type == MAC_ADB_PB2) {
 471                 pmu_shutdown();
 472 #endif
 473         }
 474         local_irq_enable();
 475         printk("It is now safe to turn off your Macintosh.\n");
 476         while(1);
 477 }
 478
 479 void mac_reset(void)
 480 {
 481         if (macintosh_config->adb_type == MAC_ADB_II) {
 482                 unsigned long flags;
 483
 484                 /* need ROMBASE in booter */
 485                 /* indeed, plus need to MAP THE ROM !! */
 486
 487                 if (mac_bi_data.rombase == 0)
 488                         mac_bi_data.rombase = 0x40800000;
 489
 490                 /* works on some */
 491                 rom_reset = (void *) (mac_bi_data.rombase + 0xa);
 492
 493                 if (macintosh_config->ident == MAC_MODEL_SE30) {
 494                         /*
 495                          * MSch: Machines known to crash on ROM reset ...
 496                          */
 497                 } else {
 498                         local_irq_save(flags);
 499
 500                         rom_reset();
 501
 502                         local_irq_restore(flags);
 503                 }
 504 #ifdef CONFIG_ADB_CUDA
 505         } else if (macintosh_config->adb_type == MAC_ADB_CUDA) {
 506                 cuda_restart();
 507 #endif
 508 #ifdef CONFIG_ADB_PMU68K
 509         } else if (macintosh_config->adb_type == MAC_ADB_PB1
 510                 || macintosh_config->adb_type == MAC_ADB_PB2) {
 511                 pmu_restart();
 512 #endif
 513         } else if (CPU_IS_030) {
 514
 515                 /* 030-specific reset routine.  The idea is general, but the
 516                  * specific registers to reset are '030-specific.  Until I
 517                  * have a non-030 machine, I can't test anything else.
 518                  *  -- C. Scott Ananian <cananian@alumni.princeton.edu>
 519                  */
 520
 521                 unsigned long rombase = 0x40000000;
 522
 523                 /* make a 1-to-1 mapping, using the transparent tran. reg. */
 524                 unsigned long virt = (unsigned long) mac_reset;
 525                 unsigned long phys = virt_to_phys(mac_reset);
 526                 unsigned long addr = (phys&0xFF000000)|0x8777;
 527                 unsigned long offset = phys-virt;
 528                 local_irq_disable(); /* lets not screw this up, ok? */
 529                 __asm__ __volatile__(".chip 68030\n\t"
 530                                      "pmove %0,%/tt0\n\t"
 531                                      ".chip 68k"
 532                                      : : "m" (addr));
 533                 /* Now jump to physical address so we can disable MMU */
 534                 __asm__ __volatile__(
 535                     ".chip 68030\n\t"
 536                     "lea %/pc@(1f),%/a0\n\t"
 537                     "addl %0,%/a0\n\t"/* fixup target address and stack ptr */
 538                     "addl %0,%/sp\n\t"
 539                     "pflusha\n\t"
 540                     "jmp %/a0@\n\t" /* jump into physical memory */
 541                     "0:.long 0\n\t" /* a constant zero. */
 542                     /* OK.  Now reset everything and jump to reset vector. */
 543                     "1:\n\t"
 544                     "lea %/pc@(0b),%/a0\n\t"
 545                     "pmove %/a0@, %/tc\n\t" /* disable mmu */
 546                     "pmove %/a0@, %/tt0\n\t" /* disable tt0 */
 547                     "pmove %/a0@, %/tt1\n\t" /* disable tt1 */
 548                     "movel #0, %/a0\n\t"
 549                     "movec %/a0, %/vbr\n\t" /* clear vector base register */
 550                     "movec %/a0, %/cacr\n\t" /* disable caches */
 551                     "movel #0x0808,%/a0\n\t"
 552                     "movec %/a0, %/cacr\n\t" /* flush i&d caches */
 553                     "movew #0x2700,%/sr\n\t" /* set up status register */
 554                     "movel %1@(0x0),%/a0\n\t"/* load interrupt stack pointer */
 555                     "movec %/a0, %/isp\n\t"
 556                     "movel %1@(0x4),%/a0\n\t" /* load reset vector */
 557                     "reset\n\t" /* reset external devices */
 558                     "jmp %/a0@\n\t" /* jump to the reset vector */
 559                     ".chip 68k"
 560                     : : "r" (offset), "a" (rombase) : "a0");
 561         }
 562
 563         /* should never get here */
 564         local_irq_enable();
 565         printk ("Restart failed.  Please restart manually.\n");
 566         while(1);
 567 }
 568
 569 /*
 570  * This function translates seconds since 1970 into a proper date.
 571  *
 572  * Algorithm cribbed from glibc2.1, __offtime().
 573  */
 574 #define SECS_PER_MINUTE (60)
 575 #define SECS_PER_HOUR  (SECS_PER_MINUTE * 60)
 576 #define SECS_PER_DAY   (SECS_PER_HOUR * 24)
 577
 578 static void unmktime(unsigned long time, long offset,
 579                      int *yearp, int *monp, int *dayp,
 580                      int *hourp, int *minp, int *secp)
 581 {
 582         /* How many days come before each month (0-12).  */
 583         static const unsigned short int __mon_yday[2][13] =
 584         {
 585                 /* Normal years.  */
 586                 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
 587                 /* Leap years.  */
 588                 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
 589         };
 590         long int days, rem, y, wday, yday;
 591         const unsigned short int *ip;
 592
 593         days = time / SECS_PER_DAY;
 594         rem = time % SECS_PER_DAY;
 595         rem += offset;
 596         while (rem < 0) {
 597                 rem += SECS_PER_DAY;
 598                 --days;
 599         }
 600         while (rem >= SECS_PER_DAY) {
 601                 rem -= SECS_PER_DAY;
 602                 ++days;
 603         }
 604         *hourp = rem / SECS_PER_HOUR;
 605         rem %= SECS_PER_HOUR;
 606         *minp = rem / SECS_PER_MINUTE;
 607         *secp = rem % SECS_PER_MINUTE;
 608         /* January 1, 1970 was a Thursday. */
 609         wday = (4 + days) % 7; /* Day in the week. Not currently used */
 610         if (wday < 0) wday += 7;
 611         y = 1970;
 612
 613 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
 614 #define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
 615 #define __isleap(year)  \
 616   ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
 617
 618         while (days < 0 || days >= (__isleap (y) ? 366 : 365))
 619         {
 620                 /* Guess a corrected year, assuming 365 days per year.  */
 621                 long int yg = y + days / 365 - (days % 365 < 0);
 622
 623                 /* Adjust DAYS and Y to match the guessed year.  */
 624                 days -= ((yg - y) * 365
 625                          + LEAPS_THRU_END_OF (yg - 1)
 626                          - LEAPS_THRU_END_OF (y - 1));
 627                 y = yg;
 628         }
 629         *yearp = y - 1900;
 630         yday = days; /* day in the year.  Not currently used. */
 631         ip = __mon_yday[__isleap(y)];
 632         for (y = 11; days < (long int) ip[y]; --y)
 633                 continue;
 634         days -= ip[y];
 635         *monp = y;
 636         *dayp = days + 1; /* day in the month */
 637         return;
 638 }
 639
 640 /*
 641  * Read/write the hardware clock.
 642  */
 643
 644 int mac_hwclk(int op, struct rtc_time *t)
 645 {
 646         unsigned long now;
 647
 648         if (!op) { /* read */
 649                 switch (macintosh_config->adb_type) {
 650                 case MAC_ADB_II:
 651                 case MAC_ADB_IOP:
 652                         now = via_read_time();
 653                         break;
 654                 case MAC_ADB_IISI:
 655                         now = maciisi_read_time();
 656                         break;
 657                 case MAC_ADB_PB1:
 658                 case MAC_ADB_PB2:
 659                         now = pmu_read_time();
 660                         break;
 661                 case MAC_ADB_CUDA:
 662                         now = cuda_read_time();
 663                         break;
 664                 default:
 665                         now = 0;
 666                 }
 667
 668                 t->tm_wday = 0;
 669                 unmktime(now, 0,
 670                          &t->tm_year, &t->tm_mon, &t->tm_mday,
 671                          &t->tm_hour, &t->tm_min, &t->tm_sec);
 672         } else { /* write */
 673
 674                 now = mktime(t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
 675                              t->tm_hour, t->tm_min, t->tm_sec);
 676
 677                 switch (macintosh_config->adb_type) {
 678                 case MAC_ADB_II:
 679                 case MAC_ADB_IOP:
 680                         via_write_time(now);
 681                         break;
 682                 case MAC_ADB_CUDA:
 683                         cuda_write_time(now);
 684                         break;
 685                 case MAC_ADB_PB1:
 686                 case MAC_ADB_PB2:
 687                         pmu_write_time(now);
 688                         break;
 689                 case MAC_ADB_IISI:
 690                         maciisi_write_time(now);
 691                 }
 692         }
 693         return 0;
 694 }
 695
 696 /*
 697  * Set minutes/seconds in the hardware clock
 698  */
 699
 700 int mac_set_clock_mmss (unsigned long nowtime)
 701 {
 702         struct rtc_time now;
 703
 704         mac_hwclk(0, &now);
 705         now.tm_sec = nowtime % 60;
 706         now.tm_min = (nowtime / 60) % 60;
 707         mac_hwclk(1, &now);
 708
 709         return 0;
 710 }