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/config.h> 16 #include <linux/types.h> 17 #include <linux/kernel.h> 18 #include <linux/mm.h> 19 #include <linux/tty.h> 20 #include <linux/console.h> 21 #include <linux/rtc.h> 22 #include <linux/init.h> 23 #include <linux/vt_kern.h> 24 #include <linux/delay.h> 25 #include <linux/interrupt.h> 26 #ifdef CONFIG_ZORRO 27 #include <linux/zorro.h> 28 #endif 29 30 #include <asm/bootinfo.h> 31 #include <asm/setup.h> 32 #include <asm/system.h> 33 #include <asm/pgtable.h> 34 #include <asm/amigahw.h> 35 #include <asm/amigaints.h> 36 #include <asm/irq.h> 37 #include <asm/rtc.h> 38 #include <asm/machdep.h> 39 #include <asm/io.h> 40 41 unsigned long amiga_model; 42 unsigned long amiga_eclock; 43 unsigned long amiga_masterclock; 44 unsigned long amiga_colorclock; 45 unsigned long amiga_chipset; 46 unsigned char amiga_vblank; 47 unsigned char amiga_psfreq; 48 struct amiga_hw_present amiga_hw_present; 49 50 static char s_a500[] __initdata = "A500"; 51 static char s_a500p[] __initdata = "A500+"; 52 static char s_a600[] __initdata = "A600"; 53 static char s_a1000[] __initdata = "A1000"; 54 static char s_a1200[] __initdata = "A1200"; 55 static char s_a2000[] __initdata = "A2000"; 56 static char s_a2500[] __initdata = "A2500"; 57 static char s_a3000[] __initdata = "A3000"; 58 static char s_a3000t[] __initdata = "A3000T"; 59 static char s_a3000p[] __initdata = "A3000+"; 60 static char s_a4000[] __initdata = "A4000"; 61 static char s_a4000t[] __initdata = "A4000T"; 62 static char s_cdtv[] __initdata = "CDTV"; 63 static char s_cd32[] __initdata = "CD32"; 64 static char s_draco[] __initdata = "Draco"; 65 static char *amiga_models[] __initdata = { 66 [AMI_500-AMI_500] = s_a500, 67 [AMI_500PLUS-AMI_500] = s_a500p, 68 [AMI_600-AMI_500] = s_a600, 69 [AMI_1000-AMI_500] = s_a1000, 70 [AMI_1200-AMI_500] = s_a1200, 71 [AMI_2000-AMI_500] = s_a2000, 72 [AMI_2500-AMI_500] = s_a2500, 73 [AMI_3000-AMI_500] = s_a3000, 74 [AMI_3000T-AMI_500] = s_a3000t, 75 [AMI_3000PLUS-AMI_500] = s_a3000p, 76 [AMI_4000-AMI_500] = s_a4000, 77 [AMI_4000T-AMI_500] = s_a4000t, 78 [AMI_CDTV-AMI_500] = s_cdtv, 79 [AMI_CD32-AMI_500] = s_cd32, 80 [AMI_DRACO-AMI_500] = s_draco, 81 }; 82 83 static char amiga_model_name[13] = "Amiga "; 84 85 extern char m68k_debug_device[]; 86 87 static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); 88 /* amiga specific irq functions */ 89 extern void amiga_init_IRQ (void); 90 extern irqreturn_t (*amiga_default_handler[]) (int, void *, struct pt_regs *); 91 extern int amiga_request_irq (unsigned int irq, 92 irqreturn_t (*handler)(int, void *, struct pt_regs *), 93 unsigned long flags, const char *devname, 94 void *dev_id); 95 extern void amiga_free_irq (unsigned int irq, void *dev_id); 96 extern void amiga_enable_irq (unsigned int); 97 extern void amiga_disable_irq (unsigned int); 98 static void amiga_get_model(char *model); 99 static int amiga_get_hardware_list(char *buffer); 100 extern int show_amiga_interrupts (struct seq_file *, void *); 101 /* amiga specific timer functions */ 102 static unsigned long amiga_gettimeoffset (void); 103 static int a3000_hwclk (int, struct rtc_time *); 104 static int a2000_hwclk (int, struct rtc_time *); 105 static int amiga_set_clock_mmss (unsigned long); 106 static unsigned int amiga_get_ss (void); 107 extern void amiga_mksound( unsigned int count, unsigned int ticks ); 108 static void amiga_reset (void); 109 extern void amiga_init_sound(void); 110 static void amiga_savekmsg_init(void); 111 static void amiga_mem_console_write(struct console *co, const char *b, 112 unsigned int count); 113 void amiga_serial_console_write(struct console *co, const char *s, 114 unsigned int count); 115 static void amiga_debug_init(void); 116 #ifdef CONFIG_HEARTBEAT 117 static void amiga_heartbeat(int on); 118 #endif 119 120 static struct console amiga_console_driver = { 121 .name = "debug", 122 .flags = CON_PRINTBUFFER, 123 .index = -1, 124 }; 125 126 127 /* 128 * Motherboard Resources present in all Amiga models 129 */ 130 131 static struct { 132 struct resource _ciab, _ciaa, _custom, _kickstart; 133 } mb_resources = { 134 ._ciab = { 135 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 136 }, 137 ._ciaa = { 138 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 139 }, 140 ._custom = { 141 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 142 }, 143 ._kickstart = { 144 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 145 } 146 }; 147 148 static struct resource rtc_resource = { 149 .start = 0x00dc0000, .end = 0x00dcffff 150 }; 151 152 static struct resource ram_resource[NUM_MEMINFO]; 153 154 155 /* 156 * Parse an Amiga-specific record in the bootinfo 157 */ 158 159 int amiga_parse_bootinfo(const struct bi_record *record) 160 { 161 int unknown = 0; 162 const unsigned long *data = record->data; 163 164 switch (record->tag) { 165 case BI_AMIGA_MODEL: 166 amiga_model = *data; 167 break; 168 169 case BI_AMIGA_ECLOCK: 170 amiga_eclock = *data; 171 break; 172 173 case BI_AMIGA_CHIPSET: 174 amiga_chipset = *data; 175 break; 176 177 case BI_AMIGA_CHIP_SIZE: 178 amiga_chip_size = *(const int *)data; 179 break; 180 181 case BI_AMIGA_VBLANK: 182 amiga_vblank = *(const unsigned char *)data; 183 break; 184 185 case BI_AMIGA_PSFREQ: 186 amiga_psfreq = *(const unsigned char *)data; 187 break; 188 189 case BI_AMIGA_AUTOCON: 190 #ifdef CONFIG_ZORRO 191 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 192 const struct ConfigDev *cd = (struct ConfigDev *)data; 193 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; 194 dev->rom = cd->cd_Rom; 195 dev->slotaddr = cd->cd_SlotAddr; 196 dev->slotsize = cd->cd_SlotSize; 197 dev->resource.start = (unsigned long)cd->cd_BoardAddr; 198 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; 199 } else 200 printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); 201 #endif /* CONFIG_ZORRO */ 202 break; 203 204 case BI_AMIGA_SERPER: 205 /* serial port period: ignored here */ 206 break; 207 208 default: 209 unknown = 1; 210 } 211 return(unknown); 212 } 213 214 /* 215 * Identify builtin hardware 216 */ 217 218 static void __init amiga_identify(void) 219 { 220 /* Fill in some default values, if necessary */ 221 if (amiga_eclock == 0) 222 amiga_eclock = 709379; 223 224 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 225 226 printk("Amiga hardware found: "); 227 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 228 printk("[%s] ", amiga_models[amiga_model-AMI_500]); 229 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 230 } 231 232 switch(amiga_model) { 233 case AMI_UNKNOWN: 234 goto Generic; 235 236 case AMI_600: 237 case AMI_1200: 238 AMIGAHW_SET(A1200_IDE); 239 AMIGAHW_SET(PCMCIA); 240 case AMI_500: 241 case AMI_500PLUS: 242 case AMI_1000: 243 case AMI_2000: 244 case AMI_2500: 245 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 246 goto Generic; 247 248 case AMI_3000: 249 case AMI_3000T: 250 AMIGAHW_SET(AMBER_FF); 251 AMIGAHW_SET(MAGIC_REKICK); 252 /* fall through */ 253 case AMI_3000PLUS: 254 AMIGAHW_SET(A3000_SCSI); 255 AMIGAHW_SET(A3000_CLK); 256 AMIGAHW_SET(ZORRO3); 257 goto Generic; 258 259 case AMI_4000T: 260 AMIGAHW_SET(A4000_SCSI); 261 /* fall through */ 262 case AMI_4000: 263 AMIGAHW_SET(A4000_IDE); 264 AMIGAHW_SET(A3000_CLK); 265 AMIGAHW_SET(ZORRO3); 266 goto Generic; 267 268 case AMI_CDTV: 269 case AMI_CD32: 270 AMIGAHW_SET(CD_ROM); 271 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 272 goto Generic; 273 274 Generic: 275 AMIGAHW_SET(AMI_VIDEO); 276 AMIGAHW_SET(AMI_BLITTER); 277 AMIGAHW_SET(AMI_AUDIO); 278 AMIGAHW_SET(AMI_FLOPPY); 279 AMIGAHW_SET(AMI_KEYBOARD); 280 AMIGAHW_SET(AMI_MOUSE); 281 AMIGAHW_SET(AMI_SERIAL); 282 AMIGAHW_SET(AMI_PARALLEL); 283 AMIGAHW_SET(CHIP_RAM); 284 AMIGAHW_SET(PAULA); 285 286 switch(amiga_chipset) { 287 case CS_OCS: 288 case CS_ECS: 289 case CS_AGA: 290 switch (amiga_custom.deniseid & 0xf) { 291 case 0x0c: 292 AMIGAHW_SET(DENISE_HR); 293 break; 294 case 0x08: 295 AMIGAHW_SET(LISA); 296 break; 297 } 298 break; 299 default: 300 AMIGAHW_SET(DENISE); 301 break; 302 } 303 switch ((amiga_custom.vposr>>8) & 0x7f) { 304 case 0x00: 305 AMIGAHW_SET(AGNUS_PAL); 306 break; 307 case 0x10: 308 AMIGAHW_SET(AGNUS_NTSC); 309 break; 310 case 0x20: 311 case 0x21: 312 AMIGAHW_SET(AGNUS_HR_PAL); 313 break; 314 case 0x30: 315 case 0x31: 316 AMIGAHW_SET(AGNUS_HR_NTSC); 317 break; 318 case 0x22: 319 case 0x23: 320 AMIGAHW_SET(ALICE_PAL); 321 break; 322 case 0x32: 323 case 0x33: 324 AMIGAHW_SET(ALICE_NTSC); 325 break; 326 } 327 AMIGAHW_SET(ZORRO); 328 break; 329 330 case AMI_DRACO: 331 panic("No support for Draco yet"); 332 333 default: 334 panic("Unknown Amiga Model"); 335 } 336 337 #define AMIGAHW_ANNOUNCE(name, str) \ 338 if (AMIGAHW_PRESENT(name)) \ 339 printk(str) 340 341 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 342 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 343 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 344 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 345 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 346 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 347 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 348 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 349 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 350 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 351 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 352 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 353 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 354 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 355 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 356 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 357 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 358 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 359 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 360 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 361 AMIGAHW_ANNOUNCE(LISA, "LISA "); 362 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 363 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 364 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 365 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 366 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 367 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 368 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 369 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 370 if (AMIGAHW_PRESENT(ZORRO)) 371 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 372 printk("\n"); 373 374 #undef AMIGAHW_ANNOUNCE 375 } 376 377 /* 378 * Setup the Amiga configuration info 379 */ 380 381 void __init config_amiga(void) 382 { 383 int i; 384 385 amiga_debug_init(); 386 amiga_identify(); 387 388 /* Yuk, we don't have PCI memory */ 389 iomem_resource.name = "Memory"; 390 for (i = 0; i < 4; i++) 391 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 392 393 mach_sched_init = amiga_sched_init; 394 mach_init_IRQ = amiga_init_IRQ; 395 mach_default_handler = &amiga_default_handler; 396 mach_request_irq = amiga_request_irq; 397 mach_free_irq = amiga_free_irq; 398 enable_irq = amiga_enable_irq; 399 disable_irq = amiga_disable_irq; 400 mach_get_model = amiga_get_model; 401 mach_get_hardware_list = amiga_get_hardware_list; 402 mach_get_irq_list = show_amiga_interrupts; 403 mach_gettimeoffset = amiga_gettimeoffset; 404 if (AMIGAHW_PRESENT(A3000_CLK)){ 405 mach_hwclk = a3000_hwclk; 406 rtc_resource.name = "A3000 RTC"; 407 request_resource(&iomem_resource, &rtc_resource); 408 } 409 else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ 410 mach_hwclk = a2000_hwclk; 411 rtc_resource.name = "A2000 RTC"; 412 request_resource(&iomem_resource, &rtc_resource); 413 } 414 415 mach_max_dma_address = 0xffffffff; /* 416 * default MAX_DMA=0xffffffff 417 * on all machines. If we don't 418 * do so, the SCSI code will not 419 * be able to allocate any mem 420 * for transfers, unless we are 421 * dealing with a Z2 mem only 422 * system. /Jes 423 */ 424 425 mach_set_clock_mmss = amiga_set_clock_mmss; 426 mach_get_ss = amiga_get_ss; 427 mach_reset = amiga_reset; 428 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 429 mach_beep = amiga_mksound; 430 #endif 431 432 #ifdef CONFIG_HEARTBEAT 433 mach_heartbeat = amiga_heartbeat; 434 #endif 435 436 /* Fill in the clock values (based on the 700 kHz E-Clock) */ 437 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ 438 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 439 440 /* clear all DMA bits */ 441 amiga_custom.dmacon = DMAF_ALL; 442 /* ensure that the DMA master bit is set */ 443 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 444 445 /* don't use Z2 RAM as system memory on Z3 capable machines */ 446 if (AMIGAHW_PRESENT(ZORRO3)) { 447 int i, j; 448 u32 disabled_z2mem = 0; 449 for (i = 0; i < m68k_num_memory; i++) 450 if (m68k_memory[i].addr < 16*1024*1024) { 451 if (i == 0) { 452 /* don't cut off the branch we're sitting on */ 453 printk("Warning: kernel runs in Zorro II memory\n"); 454 continue; 455 } 456 disabled_z2mem += m68k_memory[i].size; 457 m68k_num_memory--; 458 for (j = i; j < m68k_num_memory; j++) 459 m68k_memory[j] = m68k_memory[j+1]; 460 i--; 461 } 462 if (disabled_z2mem) 463 printk("%dK of Zorro II memory will not be used as system memory\n", 464 disabled_z2mem>>10); 465 } 466 467 /* request all RAM */ 468 for (i = 0; i < m68k_num_memory; i++) { 469 ram_resource[i].name = 470 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 471 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 472 "16-bit Slow RAM"; 473 ram_resource[i].start = m68k_memory[i].addr; 474 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 475 request_resource(&iomem_resource, &ram_resource[i]); 476 } 477 478 /* initialize chipram allocator */ 479 amiga_chip_init (); 480 481 /* debugging using chipram */ 482 if (!strcmp( m68k_debug_device, "mem" )){ 483 if (!AMIGAHW_PRESENT(CHIP_RAM)) 484 printk("Warning: no chipram present for debugging\n"); 485 else { 486 amiga_savekmsg_init(); 487 amiga_console_driver.write = amiga_mem_console_write; 488 register_console(&amiga_console_driver); 489 } 490 } 491 492 /* our beloved beeper */ 493 if (AMIGAHW_PRESENT(AMI_AUDIO)) 494 amiga_init_sound(); 495 496 /* 497 * if it is an A3000, set the magic bit that forces 498 * a hard rekick 499 */ 500 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 501 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 502 } 503 504 static unsigned short jiffy_ticks; 505 506 static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *, 507 struct pt_regs *)) 508 { 509 static struct resource sched_res = { 510 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 511 }; 512 jiffy_ticks = (amiga_eclock+HZ/2)/HZ; 513 514 if (request_resource(&mb_resources._ciab, &sched_res)) 515 printk("Cannot allocate ciab.ta{lo,hi}\n"); 516 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 517 ciab.talo = jiffy_ticks % 256; 518 ciab.tahi = jiffy_ticks / 256; 519 520 /* install interrupt service routine for CIAB Timer A 521 * 522 * Please don't change this to use ciaa, as it interferes with the 523 * SCSI code. We'll have to take a look at this later 524 */ 525 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL); 526 /* start timer */ 527 ciab.cra |= 0x11; 528 } 529 530 #define TICK_SIZE 10000 531 532 /* This is always executed with interrupts disabled. */ 533 static unsigned long amiga_gettimeoffset (void) 534 { 535 unsigned short hi, lo, hi2; 536 unsigned long ticks, offset = 0; 537 538 /* read CIA B timer A current value */ 539 hi = ciab.tahi; 540 lo = ciab.talo; 541 hi2 = ciab.tahi; 542 543 if (hi != hi2) { 544 lo = ciab.talo; 545 hi = hi2; 546 } 547 548 ticks = hi << 8 | lo; 549 550 if (ticks > jiffy_ticks / 2) 551 /* check for pending interrupt */ 552 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 553 offset = 10000; 554 555 ticks = jiffy_ticks - ticks; 556 ticks = (10000 * ticks) / jiffy_ticks; 557 558 return ticks + offset; 559 } 560 561 static int a3000_hwclk(int op, struct rtc_time *t) 562 { 563 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 564 565 if (!op) { /* read */ 566 t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2; 567 t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2; 568 t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2; 569 t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2; 570 t->tm_wday = tod_3000.weekday; 571 t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1; 572 t->tm_year = tod_3000.year1 * 10 + tod_3000.year2; 573 if (t->tm_year <= 69) 574 t->tm_year += 100; 575 } else { 576 tod_3000.second1 = t->tm_sec / 10; 577 tod_3000.second2 = t->tm_sec % 10; 578 tod_3000.minute1 = t->tm_min / 10; 579 tod_3000.minute2 = t->tm_min % 10; 580 tod_3000.hour1 = t->tm_hour / 10; 581 tod_3000.hour2 = t->tm_hour % 10; 582 tod_3000.day1 = t->tm_mday / 10; 583 tod_3000.day2 = t->tm_mday % 10; 584 if (t->tm_wday != -1) 585 tod_3000.weekday = t->tm_wday; 586 tod_3000.month1 = (t->tm_mon + 1) / 10; 587 tod_3000.month2 = (t->tm_mon + 1) % 10; 588 if (t->tm_year >= 100) 589 t->tm_year -= 100; 590 tod_3000.year1 = t->tm_year / 10; 591 tod_3000.year2 = t->tm_year % 10; 592 } 593 594 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 595 596 return 0; 597 } 598 599 static int a2000_hwclk(int op, struct rtc_time *t) 600 { 601 int cnt = 5; 602 603 tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; 604 605 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 606 { 607 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 608 udelay(70); 609 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 610 } 611 612 if (!cnt) 613 printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 614 615 if (!op) { /* read */ 616 t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2; 617 t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2; 618 t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2; 619 t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2; 620 t->tm_wday = tod_2000.weekday; 621 t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1; 622 t->tm_year = tod_2000.year1 * 10 + tod_2000.year2; 623 if (t->tm_year <= 69) 624 t->tm_year += 100; 625 626 if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){ 627 if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12) 628 t->tm_hour = 0; 629 else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12) 630 t->tm_hour += 12; 631 } 632 } else { 633 tod_2000.second1 = t->tm_sec / 10; 634 tod_2000.second2 = t->tm_sec % 10; 635 tod_2000.minute1 = t->tm_min / 10; 636 tod_2000.minute2 = t->tm_min % 10; 637 if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE) 638 tod_2000.hour1 = t->tm_hour / 10; 639 else if (t->tm_hour >= 12) 640 tod_2000.hour1 = TOD2000_HOUR1_PM + 641 (t->tm_hour - 12) / 10; 642 else 643 tod_2000.hour1 = t->tm_hour / 10; 644 tod_2000.hour2 = t->tm_hour % 10; 645 tod_2000.day1 = t->tm_mday / 10; 646 tod_2000.day2 = t->tm_mday % 10; 647 if (t->tm_wday != -1) 648 tod_2000.weekday = t->tm_wday; 649 tod_2000.month1 = (t->tm_mon + 1) / 10; 650 tod_2000.month2 = (t->tm_mon + 1) % 10; 651 if (t->tm_year >= 100) 652 t->tm_year -= 100; 653 tod_2000.year1 = t->tm_year / 10; 654 tod_2000.year2 = t->tm_year % 10; 655 } 656 657 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 658 659 return 0; 660 } 661 662 static int amiga_set_clock_mmss (unsigned long nowtime) 663 { 664 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; 665 666 if (AMIGAHW_PRESENT(A3000_CLK)) { 667 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 668 669 tod_3000.second1 = real_seconds / 10; 670 tod_3000.second2 = real_seconds % 10; 671 tod_3000.minute1 = real_minutes / 10; 672 tod_3000.minute2 = real_minutes % 10; 673 674 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 675 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 676 int cnt = 5; 677 678 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 679 680 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 681 { 682 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 683 udelay(70); 684 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 685 } 686 687 if (!cnt) 688 printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 689 690 tod_2000.second1 = real_seconds / 10; 691 tod_2000.second2 = real_seconds % 10; 692 tod_2000.minute1 = real_minutes / 10; 693 tod_2000.minute2 = real_minutes % 10; 694 695 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 696 } 697 698 return 0; 699 } 700 701 static unsigned int amiga_get_ss( void ) 702 { 703 unsigned int s; 704 705 if (AMIGAHW_PRESENT(A3000_CLK)) { 706 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 707 s = tod_3000.second1 * 10 + tod_3000.second2; 708 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 709 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 710 s = tod_2000.second1 * 10 + tod_2000.second2; 711 } 712 return s; 713 } 714 715 static NORET_TYPE void amiga_reset( void ) 716 ATTRIB_NORET; 717 718 static void amiga_reset (void) 719 { 720 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 721 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 722 723 local_irq_disable(); 724 if (CPU_IS_040_OR_060) 725 /* Setup transparent translation registers for mapping 726 * of 16 MB kernel segment before disabling translation 727 */ 728 __asm__ __volatile__ 729 ("movel %0,%/d0\n\t" 730 "andl #0xff000000,%/d0\n\t" 731 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ 732 ".chip 68040\n\t" 733 "movec %%d0,%%itt0\n\t" 734 "movec %%d0,%%dtt0\n\t" 735 ".chip 68k\n\t" 736 "jmp %0@\n\t" 737 : /* no outputs */ 738 : "a" (jmp_addr040)); 739 else 740 /* for 680[23]0, just disable translation and jump to the physical 741 * address of the label 742 */ 743 __asm__ __volatile__ 744 ("pmove %/tc,%@\n\t" 745 "bclr #7,%@\n\t" 746 "pmove %@,%/tc\n\t" 747 "jmp %0@\n\t" 748 : /* no outputs */ 749 : "a" (jmp_addr)); 750 jmp_addr_label040: 751 /* disable translation on '040 now */ 752 __asm__ __volatile__ 753 ("moveq #0,%/d0\n\t" 754 ".chip 68040\n\t" 755 "movec %%d0,%%tc\n\t" /* disable MMU */ 756 ".chip 68k\n\t" 757 : /* no outputs */ 758 : /* no inputs */ 759 : "d0"); 760 761 jmp_addr_label: 762 /* pickup reset address from AmigaOS ROM, reset devices and jump 763 * to reset address 764 */ 765 __asm__ __volatile__ 766 ("movew #0x2700,%/sr\n\t" 767 "leal 0x01000000,%/a0\n\t" 768 "subl %/a0@(-0x14),%/a0\n\t" 769 "movel %/a0@(4),%/a0\n\t" 770 "subql #2,%/a0\n\t" 771 "bra 1f\n\t" 772 /* align on a longword boundary */ 773 __ALIGN_STR "\n" 774 "1:\n\t" 775 "reset\n\t" 776 "jmp %/a0@" : /* Just that gcc scans it for % escapes */ ); 777 778 for (;;); 779 780 } 781 782 783 /* 784 * Debugging 785 */ 786 787 #define SAVEKMSG_MAXMEM 128*1024 788 789 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 790 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 791 792 struct savekmsg { 793 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 794 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 795 unsigned long magicptr; /* address of magic1 */ 796 unsigned long size; 797 char data[0]; 798 }; 799 800 static struct savekmsg *savekmsg; 801 802 static void amiga_mem_console_write(struct console *co, const char *s, 803 unsigned int count) 804 { 805 if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 806 memcpy(savekmsg->data+savekmsg->size, s, count); 807 savekmsg->size += count; 808 } 809 } 810 811 static void amiga_savekmsg_init(void) 812 { 813 static struct resource debug_res = { .name = "Debug" }; 814 815 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); 816 savekmsg->magic1 = SAVEKMSG_MAGIC1; 817 savekmsg->magic2 = SAVEKMSG_MAGIC2; 818 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 819 savekmsg->size = 0; 820 } 821 822 static void amiga_serial_putc(char c) 823 { 824 amiga_custom.serdat = (unsigned char)c | 0x100; 825 while (!(amiga_custom.serdatr & 0x2000)) 826 ; 827 } 828 829 void amiga_serial_console_write(struct console *co, const char *s, 830 unsigned int count) 831 { 832 while (count--) { 833 if (*s == '\n') 834 amiga_serial_putc('\r'); 835 amiga_serial_putc(*s++); 836 } 837 } 838 839 #ifdef CONFIG_SERIAL_CONSOLE 840 void amiga_serial_puts(const char *s) 841 { 842 amiga_serial_console_write(NULL, s, strlen(s)); 843 } 844 845 int amiga_serial_console_wait_key(struct console *co) 846 { 847 int ch; 848 849 while (!(amiga_custom.intreqr & IF_RBF)) 850 barrier(); 851 ch = amiga_custom.serdatr & 0xff; 852 /* clear the interrupt, so that another character can be read */ 853 amiga_custom.intreq = IF_RBF; 854 return ch; 855 } 856 857 void amiga_serial_gets(struct console *co, char *s, int len) 858 { 859 int ch, cnt = 0; 860 861 while (1) { 862 ch = amiga_serial_console_wait_key(co); 863 864 /* Check for backspace. */ 865 if (ch == 8 || ch == 127) { 866 if (cnt == 0) { 867 amiga_serial_putc('\007'); 868 continue; 869 } 870 cnt--; 871 amiga_serial_puts("\010 \010"); 872 continue; 873 } 874 875 /* Check for enter. */ 876 if (ch == 10 || ch == 13) 877 break; 878 879 /* See if line is too long. */ 880 if (cnt >= len + 1) { 881 amiga_serial_putc(7); 882 cnt--; 883 continue; 884 } 885 886 /* Store and echo character. */ 887 s[cnt++] = ch; 888 amiga_serial_putc(ch); 889 } 890 /* Print enter. */ 891 amiga_serial_puts("\r\n"); 892 s[cnt] = 0; 893 } 894 #endif 895 896 static void __init amiga_debug_init(void) 897 { 898 if (!strcmp( m68k_debug_device, "ser" )) { 899 /* no initialization required (?) */ 900 amiga_console_driver.write = amiga_serial_console_write; 901 register_console(&amiga_console_driver); 902 } 903 } 904 905 #ifdef CONFIG_HEARTBEAT 906 static void amiga_heartbeat(int on) 907 { 908 if (on) 909 ciaa.pra &= ~2; 910 else 911 ciaa.pra |= 2; 912 } 913 #endif 914 915 /* 916 * Amiga specific parts of /proc 917 */ 918 919 static void amiga_get_model(char *model) 920 { 921 strcpy(model, amiga_model_name); 922 } 923 924 925 static int amiga_get_hardware_list(char *buffer) 926 { 927 int len = 0; 928 929 if (AMIGAHW_PRESENT(CHIP_RAM)) 930 len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 931 len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 932 amiga_psfreq, amiga_eclock); 933 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 934 char *type; 935 switch(amiga_chipset) { 936 case CS_OCS: 937 type = "OCS"; 938 break; 939 case CS_ECS: 940 type = "ECS"; 941 break; 942 case CS_AGA: 943 type = "AGA"; 944 break; 945 default: 946 type = "Old or Unknown"; 947 break; 948 } 949 len += sprintf(buffer+len, "Graphics:\t%s\n", type); 950 } 951 952 #define AMIGAHW_ANNOUNCE(name, str) \ 953 if (AMIGAHW_PRESENT(name)) \ 954 len += sprintf (buffer+len, "\t%s\n", str) 955 956 len += sprintf (buffer + len, "Detected hardware:\n"); 957 958 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 959 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 960 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 961 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 962 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 963 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 964 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 965 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 966 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 967 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 968 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 969 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 970 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 971 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 972 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 973 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 974 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 975 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 976 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 977 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 978 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 979 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 980 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 981 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 982 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 983 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 984 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 985 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 986 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 987 #ifdef CONFIG_ZORRO 988 if (AMIGAHW_PRESENT(ZORRO)) 989 len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " 990 "Device%s\n", 991 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 992 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 993 #endif /* CONFIG_ZORRO */ 994 995 #undef AMIGAHW_ANNOUNCE 996 997 return(len); 998 } 999