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 #ifdef CONFIG_AMIGA_FLOPPY 109 extern void amiga_floppy_setup(char *, int *); 110 #endif 111 static void amiga_reset (void); 112 extern void amiga_init_sound(void); 113 static void amiga_savekmsg_init(void); 114 static void amiga_mem_console_write(struct console *co, const char *b, 115 unsigned int count); 116 void amiga_serial_console_write(struct console *co, const char *s, 117 unsigned int count); 118 static void amiga_debug_init(void); 119 #ifdef CONFIG_HEARTBEAT 120 static void amiga_heartbeat(int on); 121 #endif 122 123 static struct console amiga_console_driver = { 124 .name = "debug", 125 .flags = CON_PRINTBUFFER, 126 .index = -1, 127 }; 128 129 130 /* 131 * Motherboard Resources present in all Amiga models 132 */ 133 134 static struct { 135 struct resource _ciab, _ciaa, _custom, _kickstart; 136 } mb_resources = { 137 ._ciab = { 138 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 139 }, 140 ._ciaa = { 141 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 142 }, 143 ._custom = { 144 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 145 }, 146 ._kickstart = { 147 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 148 } 149 }; 150 151 static struct resource rtc_resource = { 152 .start = 0x00dc0000, .end = 0x00dcffff 153 }; 154 155 static struct resource ram_resource[NUM_MEMINFO]; 156 157 158 /* 159 * Parse an Amiga-specific record in the bootinfo 160 */ 161 162 int amiga_parse_bootinfo(const struct bi_record *record) 163 { 164 int unknown = 0; 165 const unsigned long *data = record->data; 166 167 switch (record->tag) { 168 case BI_AMIGA_MODEL: 169 amiga_model = *data; 170 break; 171 172 case BI_AMIGA_ECLOCK: 173 amiga_eclock = *data; 174 break; 175 176 case BI_AMIGA_CHIPSET: 177 amiga_chipset = *data; 178 break; 179 180 case BI_AMIGA_CHIP_SIZE: 181 amiga_chip_size = *(const int *)data; 182 break; 183 184 case BI_AMIGA_VBLANK: 185 amiga_vblank = *(const unsigned char *)data; 186 break; 187 188 case BI_AMIGA_PSFREQ: 189 amiga_psfreq = *(const unsigned char *)data; 190 break; 191 192 case BI_AMIGA_AUTOCON: 193 #ifdef CONFIG_ZORRO 194 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 195 const struct ConfigDev *cd = (struct ConfigDev *)data; 196 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; 197 dev->rom = cd->cd_Rom; 198 dev->slotaddr = cd->cd_SlotAddr; 199 dev->slotsize = cd->cd_SlotSize; 200 dev->resource.start = (unsigned long)cd->cd_BoardAddr; 201 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; 202 } else 203 printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); 204 #endif /* CONFIG_ZORRO */ 205 break; 206 207 case BI_AMIGA_SERPER: 208 /* serial port period: ignored here */ 209 break; 210 211 default: 212 unknown = 1; 213 } 214 return(unknown); 215 } 216 217 /* 218 * Identify builtin hardware 219 */ 220 221 static void __init amiga_identify(void) 222 { 223 /* Fill in some default values, if necessary */ 224 if (amiga_eclock == 0) 225 amiga_eclock = 709379; 226 227 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 228 229 printk("Amiga hardware found: "); 230 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 231 printk("[%s] ", amiga_models[amiga_model-AMI_500]); 232 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 233 } 234 235 switch(amiga_model) { 236 case AMI_UNKNOWN: 237 goto Generic; 238 239 case AMI_600: 240 case AMI_1200: 241 AMIGAHW_SET(A1200_IDE); 242 AMIGAHW_SET(PCMCIA); 243 case AMI_500: 244 case AMI_500PLUS: 245 case AMI_1000: 246 case AMI_2000: 247 case AMI_2500: 248 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 249 goto Generic; 250 251 case AMI_3000: 252 case AMI_3000T: 253 AMIGAHW_SET(AMBER_FF); 254 AMIGAHW_SET(MAGIC_REKICK); 255 /* fall through */ 256 case AMI_3000PLUS: 257 AMIGAHW_SET(A3000_SCSI); 258 AMIGAHW_SET(A3000_CLK); 259 AMIGAHW_SET(ZORRO3); 260 goto Generic; 261 262 case AMI_4000T: 263 AMIGAHW_SET(A4000_SCSI); 264 /* fall through */ 265 case AMI_4000: 266 AMIGAHW_SET(A4000_IDE); 267 AMIGAHW_SET(A3000_CLK); 268 AMIGAHW_SET(ZORRO3); 269 goto Generic; 270 271 case AMI_CDTV: 272 case AMI_CD32: 273 AMIGAHW_SET(CD_ROM); 274 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 275 goto Generic; 276 277 Generic: 278 AMIGAHW_SET(AMI_VIDEO); 279 AMIGAHW_SET(AMI_BLITTER); 280 AMIGAHW_SET(AMI_AUDIO); 281 AMIGAHW_SET(AMI_FLOPPY); 282 AMIGAHW_SET(AMI_KEYBOARD); 283 AMIGAHW_SET(AMI_MOUSE); 284 AMIGAHW_SET(AMI_SERIAL); 285 AMIGAHW_SET(AMI_PARALLEL); 286 AMIGAHW_SET(CHIP_RAM); 287 AMIGAHW_SET(PAULA); 288 289 switch(amiga_chipset) { 290 case CS_OCS: 291 case CS_ECS: 292 case CS_AGA: 293 switch (custom.deniseid & 0xf) { 294 case 0x0c: 295 AMIGAHW_SET(DENISE_HR); 296 break; 297 case 0x08: 298 AMIGAHW_SET(LISA); 299 break; 300 } 301 break; 302 default: 303 AMIGAHW_SET(DENISE); 304 break; 305 } 306 switch ((custom.vposr>>8) & 0x7f) { 307 case 0x00: 308 AMIGAHW_SET(AGNUS_PAL); 309 break; 310 case 0x10: 311 AMIGAHW_SET(AGNUS_NTSC); 312 break; 313 case 0x20: 314 case 0x21: 315 AMIGAHW_SET(AGNUS_HR_PAL); 316 break; 317 case 0x30: 318 case 0x31: 319 AMIGAHW_SET(AGNUS_HR_NTSC); 320 break; 321 case 0x22: 322 case 0x23: 323 AMIGAHW_SET(ALICE_PAL); 324 break; 325 case 0x32: 326 case 0x33: 327 AMIGAHW_SET(ALICE_NTSC); 328 break; 329 } 330 AMIGAHW_SET(ZORRO); 331 break; 332 333 case AMI_DRACO: 334 panic("No support for Draco yet"); 335 336 default: 337 panic("Unknown Amiga Model"); 338 } 339 340 #define AMIGAHW_ANNOUNCE(name, str) \ 341 if (AMIGAHW_PRESENT(name)) \ 342 printk(str) 343 344 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 345 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 346 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 347 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 348 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 349 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 350 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 351 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 352 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 353 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 354 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 355 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 356 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 357 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 358 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 359 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 360 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 361 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 362 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 363 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 364 AMIGAHW_ANNOUNCE(LISA, "LISA "); 365 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 366 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 367 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 368 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 369 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 370 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 371 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 372 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 373 if (AMIGAHW_PRESENT(ZORRO)) 374 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 375 printk("\n"); 376 377 #undef AMIGAHW_ANNOUNCE 378 } 379 380 /* 381 * Setup the Amiga configuration info 382 */ 383 384 void __init config_amiga(void) 385 { 386 int i; 387 388 amiga_debug_init(); 389 amiga_identify(); 390 391 /* Yuk, we don't have PCI memory */ 392 iomem_resource.name = "Memory"; 393 for (i = 0; i < 4; i++) 394 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 395 396 mach_sched_init = amiga_sched_init; 397 mach_init_IRQ = amiga_init_IRQ; 398 mach_default_handler = &amiga_default_handler; 399 mach_request_irq = amiga_request_irq; 400 mach_free_irq = amiga_free_irq; 401 enable_irq = amiga_enable_irq; 402 disable_irq = amiga_disable_irq; 403 mach_get_model = amiga_get_model; 404 mach_get_hardware_list = amiga_get_hardware_list; 405 mach_get_irq_list = show_amiga_interrupts; 406 mach_gettimeoffset = amiga_gettimeoffset; 407 if (AMIGAHW_PRESENT(A3000_CLK)){ 408 mach_hwclk = a3000_hwclk; 409 rtc_resource.name = "A3000 RTC"; 410 request_resource(&iomem_resource, &rtc_resource); 411 } 412 else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ 413 mach_hwclk = a2000_hwclk; 414 rtc_resource.name = "A2000 RTC"; 415 request_resource(&iomem_resource, &rtc_resource); 416 } 417 418 mach_max_dma_address = 0xffffffff; /* 419 * default MAX_DMA=0xffffffff 420 * on all machines. If we don't 421 * do so, the SCSI code will not 422 * be able to allocate any mem 423 * for transfers, unless we are 424 * dealing with a Z2 mem only 425 * system. /Jes 426 */ 427 428 mach_set_clock_mmss = amiga_set_clock_mmss; 429 mach_get_ss = amiga_get_ss; 430 #ifdef CONFIG_AMIGA_FLOPPY 431 mach_floppy_setup = amiga_floppy_setup; 432 #endif 433 mach_reset = amiga_reset; 434 #ifdef CONFIG_DUMMY_CONSOLE 435 conswitchp = &dummy_con; 436 #endif 437 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 438 mach_beep = amiga_mksound; 439 #endif 440 441 #ifdef CONFIG_HEARTBEAT 442 mach_heartbeat = amiga_heartbeat; 443 #endif 444 445 /* Fill in the clock values (based on the 700 kHz E-Clock) */ 446 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ 447 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 448 449 /* clear all DMA bits */ 450 custom.dmacon = DMAF_ALL; 451 /* ensure that the DMA master bit is set */ 452 custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 453 454 /* don't use Z2 RAM as system memory on Z3 capable machines */ 455 if (AMIGAHW_PRESENT(ZORRO3)) { 456 int i, j; 457 u32 disabled_z2mem = 0; 458 for (i = 0; i < m68k_num_memory; i++) 459 if (m68k_memory[i].addr < 16*1024*1024) { 460 if (i == 0) { 461 /* don't cut off the branch we're sitting on */ 462 printk("Warning: kernel runs in Zorro II memory\n"); 463 continue; 464 } 465 disabled_z2mem += m68k_memory[i].size; 466 m68k_num_memory--; 467 for (j = i; j < m68k_num_memory; j++) 468 m68k_memory[j] = m68k_memory[j+1]; 469 i--; 470 } 471 if (disabled_z2mem) 472 printk("%dK of Zorro II memory will not be used as system memory\n", 473 disabled_z2mem>>10); 474 } 475 476 /* request all RAM */ 477 for (i = 0; i < m68k_num_memory; i++) { 478 ram_resource[i].name = 479 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 480 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 481 "16-bit Slow RAM"; 482 ram_resource[i].start = m68k_memory[i].addr; 483 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 484 request_resource(&iomem_resource, &ram_resource[i]); 485 } 486 487 /* initialize chipram allocator */ 488 amiga_chip_init (); 489 490 /* debugging using chipram */ 491 if (!strcmp( m68k_debug_device, "mem" )){ 492 if (!AMIGAHW_PRESENT(CHIP_RAM)) 493 printk("Warning: no chipram present for debugging\n"); 494 else { 495 amiga_savekmsg_init(); 496 amiga_console_driver.write = amiga_mem_console_write; 497 register_console(&amiga_console_driver); 498 } 499 } 500 501 /* our beloved beeper */ 502 if (AMIGAHW_PRESENT(AMI_AUDIO)) 503 amiga_init_sound(); 504 505 /* 506 * if it is an A3000, set the magic bit that forces 507 * a hard rekick 508 */ 509 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 510 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 511 } 512 513 static unsigned short jiffy_ticks; 514 515 static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *, 516 struct pt_regs *)) 517 { 518 static struct resource sched_res = { 519 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 520 }; 521 jiffy_ticks = (amiga_eclock+HZ/2)/HZ; 522 523 if (request_resource(&mb_resources._ciab, &sched_res)) 524 printk("Cannot allocate ciab.ta{lo,hi}\n"); 525 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 526 ciab.talo = jiffy_ticks % 256; 527 ciab.tahi = jiffy_ticks / 256; 528 529 /* install interrupt service routine for CIAB Timer A 530 * 531 * Please don't change this to use ciaa, as it interferes with the 532 * SCSI code. We'll have to take a look at this later 533 */ 534 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL); 535 /* start timer */ 536 ciab.cra |= 0x11; 537 } 538 539 #define TICK_SIZE 10000 540 541 /* This is always executed with interrupts disabled. */ 542 static unsigned long amiga_gettimeoffset (void) 543 { 544 unsigned short hi, lo, hi2; 545 unsigned long ticks, offset = 0; 546 547 /* read CIA B timer A current value */ 548 hi = ciab.tahi; 549 lo = ciab.talo; 550 hi2 = ciab.tahi; 551 552 if (hi != hi2) { 553 lo = ciab.talo; 554 hi = hi2; 555 } 556 557 ticks = hi << 8 | lo; 558 559 if (ticks > jiffy_ticks / 2) 560 /* check for pending interrupt */ 561 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 562 offset = 10000; 563 564 ticks = jiffy_ticks - ticks; 565 ticks = (10000 * ticks) / jiffy_ticks; 566 567 return ticks + offset; 568 } 569 570 static int a3000_hwclk(int op, struct rtc_time *t) 571 { 572 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 573 574 if (!op) { /* read */ 575 t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2; 576 t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2; 577 t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2; 578 t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2; 579 t->tm_wday = tod_3000.weekday; 580 t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1; 581 t->tm_year = tod_3000.year1 * 10 + tod_3000.year2; 582 if (t->tm_year <= 69) 583 t->tm_year += 100; 584 } else { 585 tod_3000.second1 = t->tm_sec / 10; 586 tod_3000.second2 = t->tm_sec % 10; 587 tod_3000.minute1 = t->tm_min / 10; 588 tod_3000.minute2 = t->tm_min % 10; 589 tod_3000.hour1 = t->tm_hour / 10; 590 tod_3000.hour2 = t->tm_hour % 10; 591 tod_3000.day1 = t->tm_mday / 10; 592 tod_3000.day2 = t->tm_mday % 10; 593 if (t->tm_wday != -1) 594 tod_3000.weekday = t->tm_wday; 595 tod_3000.month1 = (t->tm_mon + 1) / 10; 596 tod_3000.month2 = (t->tm_mon + 1) % 10; 597 if (t->tm_year >= 100) 598 t->tm_year -= 100; 599 tod_3000.year1 = t->tm_year / 10; 600 tod_3000.year2 = t->tm_year % 10; 601 } 602 603 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 604 605 return 0; 606 } 607 608 static int a2000_hwclk(int op, struct rtc_time *t) 609 { 610 int cnt = 5; 611 612 tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; 613 614 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 615 { 616 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 617 udelay(70); 618 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 619 } 620 621 if (!cnt) 622 printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 623 624 if (!op) { /* read */ 625 t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2; 626 t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2; 627 t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2; 628 t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2; 629 t->tm_wday = tod_2000.weekday; 630 t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1; 631 t->tm_year = tod_2000.year1 * 10 + tod_2000.year2; 632 if (t->tm_year <= 69) 633 t->tm_year += 100; 634 635 if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){ 636 if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12) 637 t->tm_hour = 0; 638 else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12) 639 t->tm_hour += 12; 640 } 641 } else { 642 tod_2000.second1 = t->tm_sec / 10; 643 tod_2000.second2 = t->tm_sec % 10; 644 tod_2000.minute1 = t->tm_min / 10; 645 tod_2000.minute2 = t->tm_min % 10; 646 if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE) 647 tod_2000.hour1 = t->tm_hour / 10; 648 else if (t->tm_hour >= 12) 649 tod_2000.hour1 = TOD2000_HOUR1_PM + 650 (t->tm_hour - 12) / 10; 651 else 652 tod_2000.hour1 = t->tm_hour / 10; 653 tod_2000.hour2 = t->tm_hour % 10; 654 tod_2000.day1 = t->tm_mday / 10; 655 tod_2000.day2 = t->tm_mday % 10; 656 if (t->tm_wday != -1) 657 tod_2000.weekday = t->tm_wday; 658 tod_2000.month1 = (t->tm_mon + 1) / 10; 659 tod_2000.month2 = (t->tm_mon + 1) % 10; 660 if (t->tm_year >= 100) 661 t->tm_year -= 100; 662 tod_2000.year1 = t->tm_year / 10; 663 tod_2000.year2 = t->tm_year % 10; 664 } 665 666 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 667 668 return 0; 669 } 670 671 static int amiga_set_clock_mmss (unsigned long nowtime) 672 { 673 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; 674 675 if (AMIGAHW_PRESENT(A3000_CLK)) { 676 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 677 678 tod_3000.second1 = real_seconds / 10; 679 tod_3000.second2 = real_seconds % 10; 680 tod_3000.minute1 = real_minutes / 10; 681 tod_3000.minute2 = real_minutes % 10; 682 683 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 684 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 685 int cnt = 5; 686 687 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 688 689 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) 690 { 691 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 692 udelay(70); 693 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; 694 } 695 696 if (!cnt) 697 printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); 698 699 tod_2000.second1 = real_seconds / 10; 700 tod_2000.second2 = real_seconds % 10; 701 tod_2000.minute1 = real_minutes / 10; 702 tod_2000.minute2 = real_minutes % 10; 703 704 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; 705 } 706 707 return 0; 708 } 709 710 static unsigned int amiga_get_ss( void ) 711 { 712 unsigned int s; 713 714 if (AMIGAHW_PRESENT(A3000_CLK)) { 715 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD; 716 s = tod_3000.second1 * 10 + tod_3000.second2; 717 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE; 718 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { 719 s = tod_2000.second1 * 10 + tod_2000.second2; 720 } 721 return s; 722 } 723 724 static NORET_TYPE void amiga_reset( void ) 725 ATTRIB_NORET; 726 727 static void amiga_reset (void) 728 { 729 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 730 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 731 732 local_irq_disable(); 733 if (CPU_IS_040_OR_060) 734 /* Setup transparent translation registers for mapping 735 * of 16 MB kernel segment before disabling translation 736 */ 737 __asm__ __volatile__ 738 ("movel %0,%/d0\n\t" 739 "andl #0xff000000,%/d0\n\t" 740 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ 741 ".chip 68040\n\t" 742 "movec %%d0,%%itt0\n\t" 743 "movec %%d0,%%dtt0\n\t" 744 ".chip 68k\n\t" 745 "jmp %0@\n\t" 746 : /* no outputs */ 747 : "a" (jmp_addr040)); 748 else 749 /* for 680[23]0, just disable translation and jump to the physical 750 * address of the label 751 */ 752 __asm__ __volatile__ 753 ("pmove %/tc,%@\n\t" 754 "bclr #7,%@\n\t" 755 "pmove %@,%/tc\n\t" 756 "jmp %0@\n\t" 757 : /* no outputs */ 758 : "a" (jmp_addr)); 759 jmp_addr_label040: 760 /* disable translation on '040 now */ 761 __asm__ __volatile__ 762 ("moveq #0,%/d0\n\t" 763 ".chip 68040\n\t" 764 "movec %%d0,%%tc\n\t" /* disable MMU */ 765 ".chip 68k\n\t" 766 : /* no outputs */ 767 : /* no inputs */ 768 : "d0"); 769 770 jmp_addr_label: 771 /* pickup reset address from AmigaOS ROM, reset devices and jump 772 * to reset address 773 */ 774 __asm__ __volatile__ 775 ("movew #0x2700,%/sr\n\t" 776 "leal 0x01000000,%/a0\n\t" 777 "subl %/a0@(-0x14),%/a0\n\t" 778 "movel %/a0@(4),%/a0\n\t" 779 "subql #2,%/a0\n\t" 780 "bra 1f\n\t" 781 /* align on a longword boundary */ 782 __ALIGN_STR "\n" 783 "1:\n\t" 784 "reset\n\t" 785 "jmp %/a0@" : /* Just that gcc scans it for % escapes */ ); 786 787 for (;;); 788 789 } 790 791 792 /* 793 * Debugging 794 */ 795 796 #define SAVEKMSG_MAXMEM 128*1024 797 798 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 799 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 800 801 struct savekmsg { 802 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 803 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 804 unsigned long magicptr; /* address of magic1 */ 805 unsigned long size; 806 char data[0]; 807 }; 808 809 static struct savekmsg *savekmsg; 810 811 static void amiga_mem_console_write(struct console *co, const char *s, 812 unsigned int count) 813 { 814 if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 815 memcpy(savekmsg->data+savekmsg->size, s, count); 816 savekmsg->size += count; 817 } 818 } 819 820 static void amiga_savekmsg_init(void) 821 { 822 static struct resource debug_res = { .name = "Debug" }; 823 824 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); 825 savekmsg->magic1 = SAVEKMSG_MAGIC1; 826 savekmsg->magic2 = SAVEKMSG_MAGIC2; 827 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 828 savekmsg->size = 0; 829 } 830 831 static void amiga_serial_putc(char c) 832 { 833 custom.serdat = (unsigned char)c | 0x100; 834 while (!(custom.serdatr & 0x2000)) 835 ; 836 } 837 838 void amiga_serial_console_write(struct console *co, const char *s, 839 unsigned int count) 840 { 841 while (count--) { 842 if (*s == '\n') 843 amiga_serial_putc('\r'); 844 amiga_serial_putc(*s++); 845 } 846 } 847 848 #ifdef CONFIG_SERIAL_CONSOLE 849 void amiga_serial_puts(const char *s) 850 { 851 amiga_serial_console_write(NULL, s, strlen(s)); 852 } 853 854 int amiga_serial_console_wait_key(struct console *co) 855 { 856 int ch; 857 858 while (!(custom.intreqr & IF_RBF)) 859 barrier(); 860 ch = custom.serdatr & 0xff; 861 /* clear the interrupt, so that another character can be read */ 862 custom.intreq = IF_RBF; 863 return ch; 864 } 865 866 void amiga_serial_gets(struct console *co, char *s, int len) 867 { 868 int ch, cnt = 0; 869 870 while (1) { 871 ch = amiga_serial_console_wait_key(co); 872 873 /* Check for backspace. */ 874 if (ch == 8 || ch == 127) { 875 if (cnt == 0) { 876 amiga_serial_putc('\007'); 877 continue; 878 } 879 cnt--; 880 amiga_serial_puts("\010 \010"); 881 continue; 882 } 883 884 /* Check for enter. */ 885 if (ch == 10 || ch == 13) 886 break; 887 888 /* See if line is too long. */ 889 if (cnt >= len + 1) { 890 amiga_serial_putc(7); 891 cnt--; 892 continue; 893 } 894 895 /* Store and echo character. */ 896 s[cnt++] = ch; 897 amiga_serial_putc(ch); 898 } 899 /* Print enter. */ 900 amiga_serial_puts("\r\n"); 901 s[cnt] = 0; 902 } 903 #endif 904 905 static void __init amiga_debug_init(void) 906 { 907 if (!strcmp( m68k_debug_device, "ser" )) { 908 /* no initialization required (?) */ 909 amiga_console_driver.write = amiga_serial_console_write; 910 register_console(&amiga_console_driver); 911 } 912 } 913 914 #ifdef CONFIG_HEARTBEAT 915 static void amiga_heartbeat(int on) 916 { 917 if (on) 918 ciaa.pra &= ~2; 919 else 920 ciaa.pra |= 2; 921 } 922 #endif 923 924 /* 925 * Amiga specific parts of /proc 926 */ 927 928 static void amiga_get_model(char *model) 929 { 930 strcpy(model, amiga_model_name); 931 } 932 933 934 static int amiga_get_hardware_list(char *buffer) 935 { 936 int len = 0; 937 938 if (AMIGAHW_PRESENT(CHIP_RAM)) 939 len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 940 len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 941 amiga_psfreq, amiga_eclock); 942 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 943 char *type; 944 switch(amiga_chipset) { 945 case CS_OCS: 946 type = "OCS"; 947 break; 948 case CS_ECS: 949 type = "ECS"; 950 break; 951 case CS_AGA: 952 type = "AGA"; 953 break; 954 default: 955 type = "Old or Unknown"; 956 break; 957 } 958 len += sprintf(buffer+len, "Graphics:\t%s\n", type); 959 } 960 961 #define AMIGAHW_ANNOUNCE(name, str) \ 962 if (AMIGAHW_PRESENT(name)) \ 963 len += sprintf (buffer+len, "\t%s\n", str) 964 965 len += sprintf (buffer + len, "Detected hardware:\n"); 966 967 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 968 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 969 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 970 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 971 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 972 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 973 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 974 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 975 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 976 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 977 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 978 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 979 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 980 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 981 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 982 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 983 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 984 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 985 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 986 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 987 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 988 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 989 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 990 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 991 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 992 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 993 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 994 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 995 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 996 #ifdef CONFIG_ZORRO 997 if (AMIGAHW_PRESENT(ZORRO)) 998 len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " 999 "Device%s\n", 1000 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 1001 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 1002 #endif /* CONFIG_ZORRO */ 1003 1004 #undef AMIGAHW_ANNOUNCE 1005 1006 return(len); 1007 } 1008