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 #if 0 /* def 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[0] << 24) | (req.reply[1] << 16) 106 | (req.reply[2] << 8) | req.reply[3]; 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 #if 0 /* def CONFIG_ADB_MACIISI */ 150 extern int maciisi_request(struct adb_request *req, 151 void (*done)(struct adb_request *), int nbytes, ...); 152 153 static long maciisi_read_time(void) 154 { 155 struct adb_request req; 156 long time; 157 158 if (maciisi_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME)) 159 return 0; 160 161 time = (req.reply[3] << 24) | (req.reply[4] << 16) 162 | (req.reply[5] << 8) | req.reply[6]; 163 return time - RTC_OFFSET; 164 } 165 166 static void maciisi_write_time(long data) 167 { 168 struct adb_request req; 169 data += RTC_OFFSET; 170 maciisi_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, 171 (data >> 24) & 0xFF, (data >> 16) & 0xFF, 172 (data >> 8) & 0xFF, data & 0xFF); 173 } 174 175 static __u8 maciisi_read_pram(int offset) 176 { 177 struct adb_request req; 178 if (maciisi_request(&req, NULL, 4, CUDA_PACKET, CUDA_GET_PRAM, 179 (offset >> 8) & 0xFF, offset & 0xFF)) 180 return 0; 181 return req.reply[3]; 182 } 183 184 static void maciisi_write_pram(int offset, __u8 data) 185 { 186 struct adb_request req; 187 maciisi_request(&req, NULL, 5, CUDA_PACKET, CUDA_SET_PRAM, 188 (offset >> 8) & 0xFF, offset & 0xFF, data); 189 } 190 #else 191 #define maciisi_read_time() 0 192 #define maciisi_write_time(n) 193 #define maciisi_read_pram NULL 194 #define maciisi_write_pram NULL 195 #endif 196 197 /* 198 * VIA PRAM/RTC access routines 199 * 200 * Must be called with interrupts disabled and 201 * the RTC should be enabled. 202 */ 203 204 static __u8 via_pram_readbyte(void) 205 { 206 int i,reg; 207 __u8 data; 208 209 reg = via1[vBufB] & ~VIA1B_vRTCClk; 210 211 /* Set the RTC data line to be an input. */ 212 213 via1[vDirB] &= ~VIA1B_vRTCData; 214 215 /* The bits of the byte come out in MSB order */ 216 217 data = 0; 218 for (i = 0 ; i < 8 ; i++) { 219 via1[vBufB] = reg; 220 via1[vBufB] = reg | VIA1B_vRTCClk; 221 data = (data << 1) | (via1[vBufB] & VIA1B_vRTCData); 222 } 223 224 /* Return RTC data line to output state */ 225 226 via1[vDirB] |= VIA1B_vRTCData; 227 228 return data; 229 } 230 231 static void via_pram_writebyte(__u8 data) 232 { 233 int i,reg,bit; 234 235 reg = via1[vBufB] & ~(VIA1B_vRTCClk | VIA1B_vRTCData); 236 237 /* The bits of the byte go in in MSB order */ 238 239 for (i = 0 ; i < 8 ; i++) { 240 bit = data & 0x80? 1 : 0; 241 data <<= 1; 242 via1[vBufB] = reg | bit; 243 via1[vBufB] = reg | bit | VIA1B_vRTCClk; 244 } 245 } 246 247 /* 248 * Execute a VIA PRAM/RTC command. For read commands 249 * data should point to a one-byte buffer for the 250 * resulting data. For write commands it should point 251 * to the data byte to for the command. 252 * 253 * This function disables all interrupts while running. 254 */ 255 256 static void via_pram_command(int command, __u8 *data) 257 { 258 unsigned long flags; 259 int is_read; 260 261 local_irq_save(flags); 262 263 /* Enable the RTC and make sure the strobe line is high */ 264 265 via1[vBufB] = (via1[vBufB] | VIA1B_vRTCClk) & ~VIA1B_vRTCEnb; 266 267 if (command & 0xFF00) { /* extended (two-byte) command */ 268 via_pram_writebyte((command & 0xFF00) >> 8); 269 via_pram_writebyte(command & 0xFF); 270 is_read = command & 0x8000; 271 } else { /* one-byte command */ 272 via_pram_writebyte(command); 273 is_read = command & 0x80; 274 } 275 if (is_read) { 276 *data = via_pram_readbyte(); 277 } else { 278 via_pram_writebyte(*data); 279 } 280 281 /* All done, disable the RTC */ 282 283 via1[vBufB] |= VIA1B_vRTCEnb; 284 285 local_irq_restore(flags); 286 } 287 288 static __u8 via_read_pram(int offset) 289 { 290 return 0; 291 } 292 293 static void via_write_pram(int offset, __u8 data) 294 { 295 } 296 297 /* 298 * Return the current time in seconds since January 1, 1904. 299 * 300 * This only works on machines with the VIA-based PRAM/RTC, which 301 * is basically any machine with Mac II-style ADB. 302 */ 303 304 static long via_read_time(void) 305 { 306 union { 307 __u8 cdata[4]; 308 long idata; 309 } result, last_result; 310 int ct; 311 312 /* 313 * The NetBSD guys say to loop until you get the same reading 314 * twice in a row. 315 */ 316 317 ct = 0; 318 do { 319 if (++ct > 10) { 320 printk("via_read_time: couldn't get valid time, " 321 "last read = 0x%08lx and 0x%08lx\n", 322 last_result.idata, result.idata); 323 break; 324 } 325 326 last_result.idata = result.idata; 327 result.idata = 0; 328 329 via_pram_command(0x81, &result.cdata[3]); 330 via_pram_command(0x85, &result.cdata[2]); 331 via_pram_command(0x89, &result.cdata[1]); 332 via_pram_command(0x8D, &result.cdata[0]); 333 } while (result.idata != last_result.idata); 334 335 return result.idata - RTC_OFFSET; 336 } 337 338 /* 339 * Set the current time to a number of seconds since January 1, 1904. 340 * 341 * This only works on machines with the VIA-based PRAM/RTC, which 342 * is basically any machine with Mac II-style ADB. 343 */ 344 345 static void via_write_time(long time) 346 { 347 union { 348 __u8 cdata[4]; 349 long idata; 350 } data; 351 __u8 temp; 352 353 /* Clear the write protect bit */ 354 355 temp = 0x55; 356 via_pram_command(0x35, &temp); 357 358 data.idata = time + RTC_OFFSET; 359 via_pram_command(0x01, &data.cdata[3]); 360 via_pram_command(0x05, &data.cdata[2]); 361 via_pram_command(0x09, &data.cdata[1]); 362 via_pram_command(0x0D, &data.cdata[0]); 363 364 /* Set the write protect bit */ 365 366 temp = 0xD5; 367 via_pram_command(0x35, &temp); 368 } 369 370 static void via_shutdown(void) 371 { 372 if (rbv_present) { 373 via2[rBufB] &= ~0x04; 374 } else { 375 /* Direction of vDirB is output */ 376 via2[vDirB] |= 0x04; 377 /* Send a value of 0 on that line */ 378 via2[vBufB] &= ~0x04; 379 mdelay(1000); 380 } 381 } 382 383 /* 384 * FIXME: not sure how this is supposed to work exactly... 385 */ 386 387 static void oss_shutdown(void) 388 { 389 oss->rom_ctrl = OSS_POWEROFF; 390 } 391 392 #ifdef CONFIG_ADB_CUDA 393 394 static void cuda_restart(void) 395 { 396 struct adb_request req; 397 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM) < 0) 398 return; 399 while (!req.complete) 400 cuda_poll(); 401 } 402 403 static void cuda_shutdown(void) 404 { 405 struct adb_request req; 406 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0) 407 return; 408 while (!req.complete) 409 cuda_poll(); 410 } 411 412 #endif /* CONFIG_ADB_CUDA */ 413 414 #ifdef CONFIG_ADB_PMU68K 415 416 void pmu_restart(void) 417 { 418 struct adb_request req; 419 if (pmu_request(&req, NULL, 420 2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0) 421 return; 422 while (!req.complete) 423 pmu_poll(); 424 if (pmu_request(&req, NULL, 1, PMU_RESET) < 0) 425 return; 426 while (!req.complete) 427 pmu_poll(); 428 } 429 430 void pmu_shutdown(void) 431 { 432 struct adb_request req; 433 if (pmu_request(&req, NULL, 434 2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0) 435 return; 436 while (!req.complete) 437 pmu_poll(); 438 if (pmu_request(&req, NULL, 5, PMU_SHUTDOWN, 'M', 'A', 'T', 'T') < 0) 439 return; 440 while (!req.complete) 441 pmu_poll(); 442 } 443 444 #endif 445 446 /* 447 *------------------------------------------------------------------- 448 * Below this point are the generic routines; they'll dispatch to the 449 * correct routine for the hardware on which we're running. 450 *------------------------------------------------------------------- 451 */ 452 453 void mac_pram_read(int offset, __u8 *buffer, int len) 454 { 455 __u8 (*func)(int); 456 int i; 457 458 switch(macintosh_config->adb_type) { 459 case MAC_ADB_IISI: 460 func = maciisi_read_pram; break; 461 case MAC_ADB_PB1: 462 case MAC_ADB_PB2: 463 func = pmu_read_pram; break; 464 case MAC_ADB_CUDA: 465 func = cuda_read_pram; break; 466 default: 467 func = via_read_pram; 468 } 469 if (!func) 470 return; 471 for (i = 0 ; i < len ; i++) { 472 buffer[i] = (*func)(offset++); 473 } 474 } 475 476 void mac_pram_write(int offset, __u8 *buffer, int len) 477 { 478 void (*func)(int, __u8); 479 int i; 480 481 switch(macintosh_config->adb_type) { 482 case MAC_ADB_IISI: 483 func = maciisi_write_pram; break; 484 case MAC_ADB_PB1: 485 case MAC_ADB_PB2: 486 func = pmu_write_pram; break; 487 case MAC_ADB_CUDA: 488 func = cuda_write_pram; break; 489 default: 490 func = via_write_pram; 491 } 492 if (!func) 493 return; 494 for (i = 0 ; i < len ; i++) { 495 (*func)(offset++, buffer[i]); 496 } 497 } 498 499 void mac_poweroff(void) 500 { 501 /* 502 * MAC_ADB_IISI may need to be moved up here if it doesn't actually 503 * work using the ADB packet method. --David Kilzer 504 */ 505 506 if (oss_present) { 507 oss_shutdown(); 508 } else if (macintosh_config->adb_type == MAC_ADB_II) { 509 via_shutdown(); 510 #ifdef CONFIG_ADB_CUDA 511 } else if (macintosh_config->adb_type == MAC_ADB_CUDA) { 512 cuda_shutdown(); 513 #endif 514 #ifdef CONFIG_ADB_PMU68K 515 } else if (macintosh_config->adb_type == MAC_ADB_PB1 516 || macintosh_config->adb_type == MAC_ADB_PB2) { 517 pmu_shutdown(); 518 #endif 519 } 520 local_irq_enable(); 521 printk("It is now safe to turn off your Macintosh.\n"); 522 while(1); 523 } 524 525 void mac_reset(void) 526 { 527 if (macintosh_config->adb_type == MAC_ADB_II) { 528 unsigned long flags; 529 530 /* need ROMBASE in booter */ 531 /* indeed, plus need to MAP THE ROM !! */ 532 533 if (mac_bi_data.rombase == 0) 534 mac_bi_data.rombase = 0x40800000; 535 536 /* works on some */ 537 rom_reset = (void *) (mac_bi_data.rombase + 0xa); 538 539 if (macintosh_config->ident == MAC_MODEL_SE30) { 540 /* 541 * MSch: Machines known to crash on ROM reset ... 542 */ 543 } else { 544 local_irq_save(flags); 545 546 rom_reset(); 547 548 local_irq_restore(flags); 549 } 550 #ifdef CONFIG_ADB_CUDA 551 } else if (macintosh_config->adb_type == MAC_ADB_CUDA) { 552 cuda_restart(); 553 #endif 554 #ifdef CONFIG_ADB_PMU68K 555 } else if (macintosh_config->adb_type == MAC_ADB_PB1 556 || macintosh_config->adb_type == MAC_ADB_PB2) { 557 pmu_restart(); 558 #endif 559 } else if (CPU_IS_030) { 560 561 /* 030-specific reset routine. The idea is general, but the 562 * specific registers to reset are '030-specific. Until I 563 * have a non-030 machine, I can't test anything else. 564 * -- C. Scott Ananian <cananian@alumni.princeton.edu> 565 */ 566 567 unsigned long rombase = 0x40000000; 568 569 /* make a 1-to-1 mapping, using the transparent tran. reg. */ 570 unsigned long virt = (unsigned long) mac_reset; 571 unsigned long phys = virt_to_phys(mac_reset); 572 unsigned long addr = (phys&0xFF000000)|0x8777; 573 unsigned long offset = phys-virt; 574 local_irq_disable(); /* lets not screw this up, ok? */ 575 __asm__ __volatile__(".chip 68030\n\t" 576 "pmove %0,%/tt0\n\t" 577 ".chip 68k" 578 : : "m" (addr)); 579 /* Now jump to physical address so we can disable MMU */ 580 __asm__ __volatile__( 581 ".chip 68030\n\t" 582 "lea %/pc@(1f),%/a0\n\t" 583 "addl %0,%/a0\n\t"/* fixup target address and stack ptr */ 584 "addl %0,%/sp\n\t" 585 "pflusha\n\t" 586 "jmp %/a0@\n\t" /* jump into physical memory */ 587 "0:.long 0\n\t" /* a constant zero. */ 588 /* OK. Now reset everything and jump to reset vector. */ 589 "1:\n\t" 590 "lea %/pc@(0b),%/a0\n\t" 591 "pmove %/a0@, %/tc\n\t" /* disable mmu */ 592 "pmove %/a0@, %/tt0\n\t" /* disable tt0 */ 593 "pmove %/a0@, %/tt1\n\t" /* disable tt1 */ 594 "movel #0, %/a0\n\t" 595 "movec %/a0, %/vbr\n\t" /* clear vector base register */ 596 "movec %/a0, %/cacr\n\t" /* disable caches */ 597 "movel #0x0808,%/a0\n\t" 598 "movec %/a0, %/cacr\n\t" /* flush i&d caches */ 599 "movew #0x2700,%/sr\n\t" /* set up status register */ 600 "movel %1@(0x0),%/a0\n\t"/* load interrupt stack pointer */ 601 "movec %/a0, %/isp\n\t" 602 "movel %1@(0x4),%/a0\n\t" /* load reset vector */ 603 "reset\n\t" /* reset external devices */ 604 "jmp %/a0@\n\t" /* jump to the reset vector */ 605 ".chip 68k" 606 : : "r" (offset), "a" (rombase) : "a0"); 607 } 608 609 /* should never get here */ 610 local_irq_enable(); 611 printk ("Restart failed. Please restart manually.\n"); 612 while(1); 613 } 614 615 /* 616 * This function translates seconds since 1970 into a proper date. 617 * 618 * Algorithm cribbed from glibc2.1, __offtime(). 619 */ 620 #define SECS_PER_MINUTE (60) 621 #define SECS_PER_HOUR (SECS_PER_MINUTE * 60) 622 #define SECS_PER_DAY (SECS_PER_HOUR * 24) 623 624 static void unmktime(unsigned long time, long offset, 625 int *yearp, int *monp, int *dayp, 626 int *hourp, int *minp, int *secp) 627 { 628 /* How many days come before each month (0-12). */ 629 static const unsigned short int __mon_yday[2][13] = 630 { 631 /* Normal years. */ 632 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, 633 /* Leap years. */ 634 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } 635 }; 636 long int days, rem, y, wday, yday; 637 const unsigned short int *ip; 638 639 days = time / SECS_PER_DAY; 640 rem = time % SECS_PER_DAY; 641 rem += offset; 642 while (rem < 0) { 643 rem += SECS_PER_DAY; 644 --days; 645 } 646 while (rem >= SECS_PER_DAY) { 647 rem -= SECS_PER_DAY; 648 ++days; 649 } 650 *hourp = rem / SECS_PER_HOUR; 651 rem %= SECS_PER_HOUR; 652 *minp = rem / SECS_PER_MINUTE; 653 *secp = rem % SECS_PER_MINUTE; 654 /* January 1, 1970 was a Thursday. */ 655 wday = (4 + days) % 7; /* Day in the week. Not currently used */ 656 if (wday < 0) wday += 7; 657 y = 1970; 658 659 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0)) 660 #define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) 661 #define __isleap(year) \ 662 ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) 663 664 while (days < 0 || days >= (__isleap (y) ? 366 : 365)) 665 { 666 /* Guess a corrected year, assuming 365 days per year. */ 667 long int yg = y + days / 365 - (days % 365 < 0); 668 669 /* Adjust DAYS and Y to match the guessed year. */ 670 days -= ((yg - y) * 365 671 + LEAPS_THRU_END_OF (yg - 1) 672 - LEAPS_THRU_END_OF (y - 1)); 673 y = yg; 674 } 675 *yearp = y - 1900; 676 yday = days; /* day in the year. Not currently used. */ 677 ip = __mon_yday[__isleap(y)]; 678 for (y = 11; days < (long int) ip[y]; --y) 679 continue; 680 days -= ip[y]; 681 *monp = y; 682 *dayp = days + 1; /* day in the month */ 683 return; 684 } 685 686 /* 687 * Read/write the hardware clock. 688 */ 689 690 int mac_hwclk(int op, struct rtc_time *t) 691 { 692 unsigned long now; 693 694 if (!op) { /* read */ 695 switch (macintosh_config->adb_type) { 696 case MAC_ADB_II: 697 case MAC_ADB_IOP: 698 now = via_read_time(); 699 break; 700 case MAC_ADB_IISI: 701 now = maciisi_read_time(); 702 break; 703 case MAC_ADB_PB1: 704 case MAC_ADB_PB2: 705 now = pmu_read_time(); 706 break; 707 case MAC_ADB_CUDA: 708 now = cuda_read_time(); 709 break; 710 default: 711 now = 0; 712 } 713 714 t->tm_wday = 0; 715 unmktime(now, 0, 716 &t->tm_year, &t->tm_mon, &t->tm_mday, 717 &t->tm_hour, &t->tm_min, &t->tm_sec); 718 #if 0 719 printk("mac_hwclk: read %04d-%02d-%-2d %02d:%02d:%02d\n", 720 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 721 t->tm_hour, t->tm_min, t->tm_sec); 722 #endif 723 } else { /* write */ 724 #if 0 725 printk("mac_hwclk: tried to write %04d-%02d-%-2d %02d:%02d:%02d\n", 726 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 727 t->tm_hour, t->tm_min, t->tm_sec); 728 #endif 729 730 now = mktime(t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 731 t->tm_hour, t->tm_min, t->tm_sec); 732 733 switch (macintosh_config->adb_type) { 734 case MAC_ADB_II: 735 case MAC_ADB_IOP: 736 via_write_time(now); 737 break; 738 case MAC_ADB_CUDA: 739 cuda_write_time(now); 740 break; 741 case MAC_ADB_PB1: 742 case MAC_ADB_PB2: 743 pmu_write_time(now); 744 break; 745 case MAC_ADB_IISI: 746 maciisi_write_time(now); 747 } 748 } 749 return 0; 750 } 751 752 /* 753 * Set minutes/seconds in the hardware clock 754 */ 755 756 int mac_set_clock_mmss (unsigned long nowtime) 757 { 758 struct rtc_time now; 759 760 mac_hwclk(0, &now); 761 now.tm_sec = nowtime % 60; 762 now.tm_min = (nowtime / 60) % 60; 763 mac_hwclk(1, &now); 764 765 return 0; 766 } 767