1 /* 2 * linux/arch/m68k/amiga/config.c 3 * 4 * Copyright (C) 1993 Hamish Macdonald 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file COPYING in the main directory of this archive 8 * for more details. 9 */ 10 11 /* 12 * Miscellaneous Amiga stuff 13 */ 14 15 #include <linux/types.h> 16 #include <linux/kernel.h> 17 #include <linux/mm.h> 18 #include <linux/tty.h> 19 #include <linux/console.h> 20 #include <linux/rtc.h> 21 #include <linux/init.h> 22 #include <linux/vt_kern.h> 23 #include <linux/delay.h> 24 #include <linux/interrupt.h> 25 #ifdef CONFIG_ZORRO 26 #include <linux/zorro.h> 27 #endif 28 29 #include <asm/bootinfo.h> 30 #include <asm/setup.h> 31 #include <asm/system.h> 32 #include <asm/pgtable.h> 33 #include <asm/amigahw.h> 34 #include <asm/amigaints.h> 35 #include <asm/irq.h> 36 #include <asm/rtc.h> 37 #include <asm/machdep.h> 38 #include <asm/io.h> 39 40 unsigned long amiga_model; 41 unsigned long amiga_eclock; 42 unsigned long amiga_masterclock; 43 unsigned long amiga_colorclock; 44 unsigned long amiga_chipset; 45 unsigned char amiga_vblank; 46 unsigned char amiga_psfreq; 47 struct amiga_hw_present amiga_hw_present; 48 49 static char s_a500[] __initdata = "A500"; 50 static char s_a500p[] __initdata = "A500+"; 51 static char s_a600[] __initdata = "A600"; 52 static char s_a1000[] __initdata = "A1000"; 53 static char s_a1200[] __initdata = "A1200"; 54 static char s_a2000[] __initdata = "A2000"; 55 static char s_a2500[] __initdata = "A2500"; 56 static char s_a3000[] __initdata = "A3000"; 57 static char s_a3000t[] __initdata = "A3000T"; 58 static char s_a3000p[] __initdata = "A3000+"; 59 static char s_a4000[] __initdata = "A4000"; 60 static char s_a4000t[] __initdata = "A4000T"; 61 static char s_cdtv[] __initdata = "CDTV"; 62 static char s_cd32[] __initdata = "CD32"; 63 static char s_draco[] __initdata = "Draco"; 64 static char *amiga_models[] __initdata = { 65 [AMI_500-AMI_500] = s_a500, 66 [AMI_500PLUS-AMI_500] = s_a500p, 67 [AMI_600-AMI_500] = s_a600, 68 [AMI_1000-AMI_500] = s_a1000, 69 [AMI_1200-AMI_500] = s_a1200, 70 [AMI_2000-AMI_500] = s_a2000, 71 [AMI_2500-AMI_500] = s_a2500, 72 [AMI_3000-AMI_500] = s_a3000, 73 [AMI_3000T-AMI_500] = s_a3000t, 74 [AMI_3000PLUS-AMI_500] = s_a3000p, 75 [AMI_4000-AMI_500] = s_a4000, 76 [AMI_4000T-AMI_500] = s_a4000t, 77 [AMI_CDTV-AMI_500] = s_cdtv, 78 [AMI_CD32-AMI_500] = s_cd32, 79 [AMI_DRACO-AMI_500] = s_draco, 80 }; 81 82 static char amiga_model_name[13] = "Amiga "; 83 84 extern char m68k_debug_device[]; 85 86 static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); 87 /* amiga specific irq functions */ 88 extern void amiga_init_IRQ (void); 89 static void amiga_get_model(char *model); 90 static int amiga_get_hardware_list(char *buffer); 91 /* amiga specific timer functions */ 92 static unsigned long amiga_gettimeoffset (void); 93 static int a3000_hwclk (int, struct rtc_time *); 94 static int a2000_hwclk (int, struct rtc_time *); 95 static int amiga_set_clock_mmss (unsigned long); 96 static unsigned int amiga_get_ss (void); 97 extern void amiga_mksound( unsigned int count, unsigned int ticks ); 98 static void amiga_reset (void); 99 extern void amiga_init_sound(void); 100 static void amiga_savekmsg_init(void); 101 static void amiga_mem_console_write(struct console *co, const char *b, 102 unsigned int count); 103 void amiga_serial_console_write(struct console *co, const char *s, 104 unsigned int count); 105 static void amiga_debug_init(void); 106 #ifdef CONFIG_HEARTBEAT 107 static void amiga_heartbeat(int on); 108 #endif 109 110 static struct console amiga_console_driver = { 111 .name = "debug", 112 .flags = CON_PRINTBUFFER, 113 .index = -1, 114 }; 115 116 117 /* 118 * Motherboard Resources present in all Amiga models 119 */ 120 121 static struct { 122 struct resource _ciab, _ciaa, _custom, _kickstart; 123 } mb_resources = { 124 ._ciab = { 125 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 126 }, 127 ._ciaa = { 128 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 129 }, 130 ._custom = { 131 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 132 }, 133 ._kickstart = { 134 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 135 } 136 }; 137 138 static struct resource rtc_resource = { 139 .start = 0x00dc0000, .end = 0x00dcffff 140 }; 141 142 static struct resource ram_resource[NUM_MEMINFO]; 143 144 145 /* 146 * Parse an Amiga-specific record in the bootinfo 147 */ 148 149 int amiga_parse_bootinfo(const struct bi_record *record) 150 { 151 int unknown = 0; 152 const unsigned long *data = record->data; 153 154 switch (record->tag) { 155 case BI_AMIGA_MODEL: 156 amiga_model = *data; 157 break; 158 159 case BI_AMIGA_ECLOCK: 160 amiga_eclock = *data; 161 break; 162 163 case BI_AMIGA_CHIPSET: 164 amiga_chipset = *data; 165 break; 166 167 case BI_AMIGA_CHIP_SIZE: 168 amiga_chip_size = *(const int *)data; 169 break; 170 171 case BI_AMIGA_VBLANK: 172 amiga_vblank = *(const unsigned char *)data; 173 break; 174 175 case BI_AMIGA_PSFREQ: 176 amiga_psfreq = *(const unsigned char *)data; 177 break; 178 179 case BI_AMIGA_AUTOCON: 180 #ifdef CONFIG_ZORRO 181 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 182 const struct ConfigDev *cd = (struct ConfigDev *)data; 183 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; 184 dev->rom = cd->cd_Rom; 185 dev->slotaddr = cd->cd_SlotAddr; 186 dev->slotsize = cd->cd_SlotSize; 187 dev->resource.start = (unsigned long)cd->cd_BoardAddr; 188 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; 189 } else 190 printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); 191 #endif /* CONFIG_ZORRO */ 192 break; 193 194 case BI_AMIGA_SERPER: 195 /* serial port period: ignored here */ 196 break; 197 198 default: 199 unknown = 1; 200 } 201 return(unknown); 202 } 203 204 /* 205 * Identify builtin hardware 206 */ 207 208 static void __init amiga_identify(void) 209 { 210 /* Fill in some default values, if necessary */ 211 if (amiga_eclock == 0) 212 amiga_eclock = 709379; 213 214 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 215 216 printk("Amiga hardware found: "); 217 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 218 printk("[%s] ", amiga_models[amiga_model-AMI_500]); 219 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 220 } 221 222 switch(amiga_model) { 223 case AMI_UNKNOWN: 224 goto Generic; 225 226 case AMI_600: 227 case AMI_1200: 228 AMIGAHW_SET(A1200_IDE); 229 AMIGAHW_SET(PCMCIA); 230 case AMI_500: 231 case AMI_500PLUS: 232 case AMI_1000: 233 case AMI_2000: 234 case AMI_2500: 235 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 236 goto Generic; 237 238 case AMI_3000: 239 case AMI_3000T: 240 AMIGAHW_SET(AMBER_FF); 241 AMIGAHW_SET(MAGIC_REKICK); 242 /* fall through */ 243 case AMI_3000PLUS: 244 AMIGAHW_SET(A3000_SCSI); 245 AMIGAHW_SET(A3000_CLK); 246 AMIGAHW_SET(ZORRO3); 247 goto Generic; 248 249 case AMI_4000T: 250 AMIGAHW_SET(A4000_SCSI); 251 /* fall through */ 252 case AMI_4000: 253 AMIGAHW_SET(A4000_IDE); 254 AMIGAHW_SET(A3000_CLK); 255 AMIGAHW_SET(ZORRO3); 256 goto Generic; 257 258 case AMI_CDTV: 259 case AMI_CD32: 260 AMIGAHW_SET(CD_ROM); 261 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 262 goto Generic; 263 264 Generic: 265 AMIGAHW_SET(AMI_VIDEO); 266 AMIGAHW_SET(AMI_BLITTER); 267 AMIGAHW_SET(AMI_AUDIO); 268 AMIGAHW_SET(AMI_FLOPPY); 269 AMIGAHW_SET(AMI_KEYBOARD); 270 AMIGAHW_SET(AMI_MOUSE); 271 AMIGAHW_SET(AMI_SERIAL); 272 AMIGAHW_SET(AMI_PARALLEL); 273 AMIGAHW_SET(CHIP_RAM); 274 AMIGAHW_SET(PAULA); 275 276 switch(amiga_chipset) { 277 case CS_OCS: 278 case CS_ECS: 279 case CS_AGA: 280 switch (amiga_custom.deniseid & 0xf) { 281 case 0x0c: 282 AMIGAHW_SET(DENISE_HR); 283 break; 284 case 0x08: 285 AMIGAHW_SET(LISA); 286 break; 287 } 288 break; 289 default: 290 AMIGAHW_SET(DENISE); 291 break; 292 } 293 switch ((amiga_custom.vposr>>8) & 0x7f) { 294 case 0x00: 295 AMIGAHW_SET(AGNUS_PAL); 296 break; 297 case 0x10: 298 AMIGAHW_SET(AGNUS_NTSC); 299 break; 300 case 0x20: 301 case 0x21: 302 AMIGAHW_SET(AGNUS_HR_PAL); 303 break; 304 case 0x30: 305 case 0x31: 306 AMIGAHW_SET(AGNUS_HR_NTSC); 307 break; 308 case 0x22: 309 case 0x23: 310 AMIGAHW_SET(ALICE_PAL); 311 break; 312 case 0x32: 313 case 0x33: 314 AMIGAHW_SET(ALICE_NTSC); 315 break; 316 } 317 AMIGAHW_SET(ZORRO); 318 break; 319 320 case AMI_DRACO: 321 panic("No support for Draco yet"); 322 323 default: 324 panic("Unknown Amiga Model"); 325 } 326 327 #define AMIGAHW_ANNOUNCE(name, str) \ 328 if (AMIGAHW_PRESENT(name)) \ 329 printk(str) 330 331 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 332 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 333 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 334 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 335 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 336 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 337 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 338 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 339 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 340 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 341 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 342 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 343 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 344 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 345 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 346 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 347 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 348 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 349 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 350 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 351 AMIGAHW_ANNOUNCE(LISA, "LISA "); 352 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 353 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 354 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 355 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 356 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 357 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 358 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 359 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 360 if (AMIGAHW_PRESENT(ZORRO)) 361 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 362 printk("\n"); 363 364 #undef AMIGAHW_ANNOUNCE 365 } 366 367 /* 368 * Setup the Amiga configuration info 369 */ 370 371 void __init config_amiga(void) 372 { 373 int i; 374 375 amiga_debug_init(); 376 amiga_identify(); 377 378 /* Yuk, we don't have PCI memory */ 379 iomem_resource.name = "Memory"; 380 for (i = 0; i < 4; i++) 381 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 382 383 mach_sched_init = amiga_sched_init; 384 mach_init_IRQ = amiga_init_IRQ; 385 mach_get_model = amiga_get_model; 386 mach_get_hardware_list = amiga_get_hardware_list; 387 mach_gettimeoffset = amiga_gettimeoffset; 388 if (AMIGAHW_PRESENT(A3000_CLK)){ 389 mach_hwclk = a3000_hwclk; 390 rtc_resource.name = "A3000 RTC"; 391 request_resource(&iomem_resource, &rtc_resource); 392 } 393 else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ 394 mach_hwclk = a2000_hwclk; 395 rtc_resource.name = "A2000 RTC"; 396 request_resource(&iomem_resource, &rtc_resource); 397 } 398 399 mach_max_dma_address = 0xffffffff; /* 400 * default MAX_DMA=0xffffffff 401 * on all machines. If we don't 402 * do so, the SCSI code will not 403 * be able to allocate any mem 404 * for transfers, unless we are 405 * dealing with a Z2 mem only 406 * system. /Jes 407 */ 408 409 mach_set_clock_mmss = amiga_set_clock_mmss; 410 mach_get_ss = amiga_get_ss; 411 mach_reset = amiga_reset; 412 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 413 mach_beep = amiga_mksound; 414 #endif 415 416 #ifdef CONFIG_HEARTBEAT 417 mach_heartbeat = amiga_heartbeat; 418 #endif 419 420 /* Fill in the clock values (based on the 700 kHz E-Clock) */ 421 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ 422 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 423 424 /* clear all DMA bits */ 425 amiga_custom.dmacon = DMAF_ALL; 426 /* ensure that the DMA master bit is set */ 427 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 428 429 /* don't use Z2 RAM as system memory on Z3 capable machines */ 430 if (AMIGAHW_PRESENT(ZORRO3)) { 431 int i, j; 432 u32 disabled_z2mem = 0; 433 for (i = 0; i < m68k_num_memory; i++) 434 if (m68k_memory[i].addr < 16*1024*1024) { 435 if (i == 0) { 436 /* don't cut off the branch we're sitting on */ 437 printk("Warning: kernel runs in Zorro II memory\n"); 438 continue; 439 } 440 disabled_z2mem += m68k_memory[i].size; 441 m68k_num_memory--; 442 for (j = i; j < m68k_num_memory; j++) 443 m68k_memory[j] = m68k_memory[j+1]; 444 i--; 445 } 446 if (disabled_z2mem) 447 printk("%dK of Zorro II memory will not be used as system memory\n", 448 disabled_z2mem>>10); 449 } 450 451 /* request all RAM */ 452 for (i = 0; i < m68k_num_memory; i++) { 453 ram_resource[i].name = 454 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 455 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 456 "16-bit Slow RAM"; 457 ram_resource[i].start = m68k_memory[i].addr; 458 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 459 request_resource(&iomem_resource, &ram_resource[i]); 460 } 461 462 /* initialize chipram allocator */ 463 amiga_chip_init (); 464 465 /* debugging using chipram */ 466 if (!strcmp( m68k_debug_device, "mem" )){ 467 if (!AMIGAHW_PRESENT(CHIP_RAM)) 468 printk("Warning: no chipram present for debugging\n"); 469 else { 470 amiga_savekmsg_init(); 471 amiga_console_driver.write = amiga_mem_console_write; 472 register_console(&amiga_console_driver); 473 } 474 } 475 476 /* our beloved beeper */ 477 if (AMIGAHW_PRESENT(AMI_AUDIO)) 478 amiga_init_sound(); 479 480 /* 481 * if it is an A3000, set the magic bit that forces 482 * a hard rekick 483 */ 484 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 485 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 486 } 487 488 static unsigned short jiffy_ticks; 489 490 static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *, 491 struct pt_regs *)) 492 { 493 static struct resource sched_res = { 494 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 495 }; 496 jiffy_ticks = (amiga_eclock+HZ/2)/HZ; 497 498 if (request_resource(&mb_resources._ciab, &sched_res)) 499 printk("Cannot allocate ciab.ta{lo,hi}\n"); 500 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 501 ciab.talo = jiffy_ticks % 256; 502 ciab.tahi = jiffy_ticks / 256; 503 504 /* install interrupt service routine for CIAB Timer A 505 * 506 * Please don't change this to use ciaa, as it interferes with the 507 * SCSI code. We'll have to take a look at this later 508 */ 509 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL); 510 /* start timer */ 511 ciab.cra |= 0x11; 512 } 513 514 #define TICK_SIZE 10000 515 516 /* This is always executed with interrupts disabled. */ 517 static unsigned long amiga_gettimeoffset (void) 518 { 519 unsigned short hi, lo, hi2; 520 unsigned long ticks, offset = 0; 521 522 /* read CIA B timer A current value */ 523 hi = ciab.tahi; 524 lo = ciab.talo; 525 hi2 = ciab.tahi; 526 527 if (hi != hi2) { 528 lo = ciab.talo; 529 hi = hi2; 530 } 531 532 ticks = hi << 8 | lo; 533 534 if (ticks > jiffy_ticks / 2) 535 /* check for pending interrupt */ 536 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 537 offset = 10000; 538 539 ticks = jiffy_ticks - ticks; 540 ticks = (10000 * ticks) / jiffy_ticks; 541 542 return ticks + offset; 543 } 544 545 static int a3000_hwclk(int op, struct rtc_time *t) 546 { 547 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 548 549 if (!op) { /* read */ 550 t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2; 551 t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2; 552 t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2; 553 t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2; 554 t->tm_wday = tod_3000.weekday; 555 t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1; 556 t->tm_year = tod_3000.year1 * 10 + tod_3000.year2; 557 if (t->tm_year <= 69) 558 t->tm_year += 100; 559 } else { 560 tod_3000.second1 = t->tm_sec / 10; 561 tod_3000.second2 = t->tm_sec % 10; 562 tod_3000.minute1 = t->tm_min / 10; 563 tod_3000.minute2 = t->tm_min % 10; 564 tod_3000.hour1 = t->tm_hour / 10; 565 tod_3000.hour2 = t->tm_hour % 10; 566 tod_3000.day1 = t->tm_mday / 10; 567 tod_3000.day2 = t->tm_mday % 10; 568 if (t->tm_wday != -1) 569 tod_3000.weekday = t->tm_wday; 570 tod_3000.month1 = (t->tm_mon + 1) / 10; 571 tod_3000.month2 = (t->tm_mon + 1) % 10; 572 if (t->tm_year >= 100) 573 t->tm_year -= 100; 574 tod_3000.year1 = t->tm_year / 10; 575 tod_3000.year2 = t->tm_year % 10; 576 } 577 578 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 579 580 return 0; 581 } 582 583 static int a2000_hwclk(int op, struct rtc_time *t) 584 { 585 int cnt = 5; 586 587 tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; 588 589 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 590 { 591 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 592 udelay(70); 593 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 594 } 595 596 if (!cnt) 597 printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 598 599 if (!op) { /* read */ 600 t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2; 601 t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2; 602 t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2; 603 t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2; 604 t->tm_wday = tod_2000.weekday; 605 t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1; 606 t->tm_year = tod_2000.year1 * 10 + tod_2000.year2; 607 if (t->tm_year <= 69) 608 t->tm_year += 100; 609 610 if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){ 611 if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12) 612 t->tm_hour = 0; 613 else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12) 614 t->tm_hour += 12; 615 } 616 } else { 617 tod_2000.second1 = t->tm_sec / 10; 618 tod_2000.second2 = t->tm_sec % 10; 619 tod_2000.minute1 = t->tm_min / 10; 620 tod_2000.minute2 = t->tm_min % 10; 621 if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE) 622 tod_2000.hour1 = t->tm_hour / 10; 623 else if (t->tm_hour >= 12) 624 tod_2000.hour1 = TOD2000_HOUR1_PM + 625 (t->tm_hour - 12) / 10; 626 else 627 tod_2000.hour1 = t->tm_hour / 10; 628 tod_2000.hour2 = t->tm_hour % 10; 629 tod_2000.day1 = t->tm_mday / 10; 630 tod_2000.day2 = t->tm_mday % 10; 631 if (t->tm_wday != -1) 632 tod_2000.weekday = t->tm_wday; 633 tod_2000.month1 = (t->tm_mon + 1) / 10; 634 tod_2000.month2 = (t->tm_mon + 1) % 10; 635 if (t->tm_year >= 100) 636 t->tm_year -= 100; 637 tod_2000.year1 = t->tm_year / 10; 638 tod_2000.year2 = t->tm_year % 10; 639 } 640 641 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 642 643 return 0; 644 } 645 646 static int amiga_set_clock_mmss (unsigned long nowtime) 647 { 648 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; 649 650 if (AMIGAHW_PRESENT(A3000_CLK)) { 651 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 652 653 tod_3000.second1 = real_seconds / 10; 654 tod_3000.second2 = real_seconds % 10; 655 tod_3000.minute1 = real_minutes / 10; 656 tod_3000.minute2 = real_minutes % 10; 657 658 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 659 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 660 int cnt = 5; 661 662 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 663 664 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 665 { 666 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 667 udelay(70); 668 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 669 } 670 671 if (!cnt) 672 printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 673 674 tod_2000.second1 = real_seconds / 10; 675 tod_2000.second2 = real_seconds % 10; 676 tod_2000.minute1 = real_minutes / 10; 677 tod_2000.minute2 = real_minutes % 10; 678 679 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 680 } 681 682 return 0; 683 } 684 685 static unsigned int amiga_get_ss( void ) 686 { 687 unsigned int s; 688 689 if (AMIGAHW_PRESENT(A3000_CLK)) { 690 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 691 s = tod_3000.second1 * 10 + tod_3000.second2; 692 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 693 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 694 s = tod_2000.second1 * 10 + tod_2000.second2; 695 } 696 return s; 697 } 698 699 static NORET_TYPE void amiga_reset( void ) 700 ATTRIB_NORET; 701 702 static void amiga_reset (void) 703 { 704 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 705 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 706 707 local_irq_disable(); 708 if (CPU_IS_040_OR_060) 709 /* Setup transparent translation registers for mapping 710 * of 16 MB kernel segment before disabling translation 711 */ 712 __asm__ __volatile__ 713 ("movel %0,%/d0\n\t" 714 "andl #0xff000000,%/d0\n\t" 715 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ 716 ".chip 68040\n\t" 717 "movec %%d0,%%itt0\n\t" 718 "movec %%d0,%%dtt0\n\t" 719 ".chip 68k\n\t" 720 "jmp %0@\n\t" 721 : /* no outputs */ 722 : "a" (jmp_addr040)); 723 else 724 /* for 680[23]0, just disable translation and jump to the physical 725 * address of the label 726 */ 727 __asm__ __volatile__ 728 ("pmove %/tc,%@\n\t" 729 "bclr #7,%@\n\t" 730 "pmove %@,%/tc\n\t" 731 "jmp %0@\n\t" 732 : /* no outputs */ 733 : "a" (jmp_addr)); 734 jmp_addr_label040: 735 /* disable translation on '040 now */ 736 __asm__ __volatile__ 737 ("moveq #0,%/d0\n\t" 738 ".chip 68040\n\t" 739 "movec %%d0,%%tc\n\t" /* disable MMU */ 740 ".chip 68k\n\t" 741 : /* no outputs */ 742 : /* no inputs */ 743 : "d0"); 744 745 jmp_addr_label: 746 /* pickup reset address from AmigaOS ROM, reset devices and jump 747 * to reset address 748 */ 749 __asm__ __volatile__ 750 ("movew #0x2700,%/sr\n\t" 751 "leal 0x01000000,%/a0\n\t" 752 "subl %/a0@(-0x14),%/a0\n\t" 753 "movel %/a0@(4),%/a0\n\t" 754 "subql #2,%/a0\n\t" 755 "bra 1f\n\t" 756 /* align on a longword boundary */ 757 __ALIGN_STR "\n" 758 "1:\n\t" 759 "reset\n\t" 760 "jmp %/a0@" : /* Just that gcc scans it for % escapes */ ); 761 762 for (;;); 763 764 } 765 766 767 /* 768 * Debugging 769 */ 770 771 #define SAVEKMSG_MAXMEM 128*1024 772 773 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 774 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 775 776 struct savekmsg { 777 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 778 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 779 unsigned long magicptr; /* address of magic1 */ 780 unsigned long size; 781 char data[0]; 782 }; 783 784 static struct savekmsg *savekmsg; 785 786 static void amiga_mem_console_write(struct console *co, const char *s, 787 unsigned int count) 788 { 789 if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 790 memcpy(savekmsg->data+savekmsg->size, s, count); 791 savekmsg->size += count; 792 } 793 } 794 795 static void amiga_savekmsg_init(void) 796 { 797 static struct resource debug_res = { .name = "Debug" }; 798 799 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); 800 savekmsg->magic1 = SAVEKMSG_MAGIC1; 801 savekmsg->magic2 = SAVEKMSG_MAGIC2; 802 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 803 savekmsg->size = 0; 804 } 805 806 static void amiga_serial_putc(char c) 807 { 808 amiga_custom.serdat = (unsigned char)c | 0x100; 809 while (!(amiga_custom.serdatr & 0x2000)) 810 ; 811 } 812 813 void amiga_serial_console_write(struct console *co, const char *s, 814 unsigned int count) 815 { 816 while (count--) { 817 if (*s == '\n') 818 amiga_serial_putc('\r'); 819 amiga_serial_putc(*s++); 820 } 821 } 822 823 #ifdef CONFIG_SERIAL_CONSOLE 824 void amiga_serial_puts(const char *s) 825 { 826 amiga_serial_console_write(NULL, s, strlen(s)); 827 } 828 829 int amiga_serial_console_wait_key(struct console *co) 830 { 831 int ch; 832 833 while (!(amiga_custom.intreqr & IF_RBF)) 834 barrier(); 835 ch = amiga_custom.serdatr & 0xff; 836 /* clear the interrupt, so that another character can be read */ 837 amiga_custom.intreq = IF_RBF; 838 return ch; 839 } 840 841 void amiga_serial_gets(struct console *co, char *s, int len) 842 { 843 int ch, cnt = 0; 844 845 while (1) { 846 ch = amiga_serial_console_wait_key(co); 847 848 /* Check for backspace. */ 849 if (ch == 8 || ch == 127) { 850 if (cnt == 0) { 851 amiga_serial_putc('\007'); 852 continue; 853 } 854 cnt--; 855 amiga_serial_puts("\010 \010"); 856 continue; 857 } 858 859 /* Check for enter. */ 860 if (ch == 10 || ch == 13) 861 break; 862 863 /* See if line is too long. */ 864 if (cnt >= len + 1) { 865 amiga_serial_putc(7); 866 cnt--; 867 continue; 868 } 869 870 /* Store and echo character. */ 871 s[cnt++] = ch; 872 amiga_serial_putc(ch); 873 } 874 /* Print enter. */ 875 amiga_serial_puts("\r\n"); 876 s[cnt] = 0; 877 } 878 #endif 879 880 static void __init amiga_debug_init(void) 881 { 882 if (!strcmp( m68k_debug_device, "ser" )) { 883 /* no initialization required (?) */ 884 amiga_console_driver.write = amiga_serial_console_write; 885 register_console(&amiga_console_driver); 886 } 887 } 888 889 #ifdef CONFIG_HEARTBEAT 890 static void amiga_heartbeat(int on) 891 { 892 if (on) 893 ciaa.pra &= ~2; 894 else 895 ciaa.pra |= 2; 896 } 897 #endif 898 899 /* 900 * Amiga specific parts of /proc 901 */ 902 903 static void amiga_get_model(char *model) 904 { 905 strcpy(model, amiga_model_name); 906 } 907 908 909 static int amiga_get_hardware_list(char *buffer) 910 { 911 int len = 0; 912 913 if (AMIGAHW_PRESENT(CHIP_RAM)) 914 len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 915 len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 916 amiga_psfreq, amiga_eclock); 917 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 918 char *type; 919 switch(amiga_chipset) { 920 case CS_OCS: 921 type = "OCS"; 922 break; 923 case CS_ECS: 924 type = "ECS"; 925 break; 926 case CS_AGA: 927 type = "AGA"; 928 break; 929 default: 930 type = "Old or Unknown"; 931 break; 932 } 933 len += sprintf(buffer+len, "Graphics:\t%s\n", type); 934 } 935 936 #define AMIGAHW_ANNOUNCE(name, str) \ 937 if (AMIGAHW_PRESENT(name)) \ 938 len += sprintf (buffer+len, "\t%s\n", str) 939 940 len += sprintf (buffer + len, "Detected hardware:\n"); 941 942 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 943 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 944 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 945 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 946 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 947 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 948 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 949 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 950 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 951 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 952 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 953 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 954 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 955 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 956 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 957 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 958 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 959 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 960 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 961 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 962 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 963 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 964 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 965 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 966 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 967 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 968 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 969 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 970 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 971 #ifdef CONFIG_ZORRO 972 if (AMIGAHW_PRESENT(ZORRO)) 973 len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " 974 "Device%s\n", 975 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 976 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 977 #endif /* CONFIG_ZORRO */ 978 979 #undef AMIGAHW_ANNOUNCE 980 981 return(len); 982 } 983