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/arch/m68k/amiga/config.c

https://bitbucket.org/evzijst/gittest
C | 1007 lines | 790 code | 132 blank | 85 comment | 91 complexity | fa72b0bbbc18459db4c2932d87492232 MD5 | raw file
   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
  41unsigned long amiga_model;
  42unsigned long amiga_eclock;
  43unsigned long amiga_masterclock;
  44unsigned long amiga_colorclock;
  45unsigned long amiga_chipset;
  46unsigned char amiga_vblank;
  47unsigned char amiga_psfreq;
  48struct amiga_hw_present amiga_hw_present;
  49
  50static char s_a500[] __initdata = "A500";
  51static char s_a500p[] __initdata = "A500+";
  52static char s_a600[] __initdata = "A600";
  53static char s_a1000[] __initdata = "A1000";
  54static char s_a1200[] __initdata = "A1200";
  55static char s_a2000[] __initdata = "A2000";
  56static char s_a2500[] __initdata = "A2500";
  57static char s_a3000[] __initdata = "A3000";
  58static char s_a3000t[] __initdata = "A3000T";
  59static char s_a3000p[] __initdata = "A3000+";
  60static char s_a4000[] __initdata = "A4000";
  61static char s_a4000t[] __initdata = "A4000T";
  62static char s_cdtv[] __initdata = "CDTV";
  63static char s_cd32[] __initdata = "CD32";
  64static char s_draco[] __initdata = "Draco";
  65static 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
  83static char amiga_model_name[13] = "Amiga ";
  84
  85extern char m68k_debug_device[];
  86
  87static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
  88/* amiga specific irq functions */
  89extern void amiga_init_IRQ (void);
  90extern irqreturn_t (*amiga_default_handler[]) (int, void *, struct pt_regs *);
  91extern 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);
  95extern void amiga_free_irq (unsigned int irq, void *dev_id);
  96extern void amiga_enable_irq (unsigned int);
  97extern void amiga_disable_irq (unsigned int);
  98static void amiga_get_model(char *model);
  99static int amiga_get_hardware_list(char *buffer);
 100extern int show_amiga_interrupts (struct seq_file *, void *);
 101/* amiga specific timer functions */
 102static unsigned long amiga_gettimeoffset (void);
 103static int a3000_hwclk (int, struct rtc_time *);
 104static int a2000_hwclk (int, struct rtc_time *);
 105static int amiga_set_clock_mmss (unsigned long);
 106static unsigned int amiga_get_ss (void);
 107extern void amiga_mksound( unsigned int count, unsigned int ticks );
 108#ifdef CONFIG_AMIGA_FLOPPY
 109extern void amiga_floppy_setup(char *, int *);
 110#endif
 111static void amiga_reset (void);
 112extern void amiga_init_sound(void);
 113static void amiga_savekmsg_init(void);
 114static void amiga_mem_console_write(struct console *co, const char *b,
 115				    unsigned int count);
 116void amiga_serial_console_write(struct console *co, const char *s,
 117				unsigned int count);
 118static void amiga_debug_init(void);
 119#ifdef CONFIG_HEARTBEAT
 120static void amiga_heartbeat(int on);
 121#endif
 122
 123static 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
 134static 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
 151static struct resource rtc_resource = {
 152    .start = 0x00dc0000, .end = 0x00dcffff
 153};
 154
 155static struct resource ram_resource[NUM_MEMINFO];
 156
 157
 158    /*
 159     *  Parse an Amiga-specific record in the bootinfo
 160     */
 161
 162int 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
 221static 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
 384void __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
 513static unsigned short jiffy_ticks;
 514
 515static 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.  */
 542static 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
 570static 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
 608static 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
 671static 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
 710static 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
 724static NORET_TYPE void amiga_reset( void )
 725    ATTRIB_NORET;
 726
 727static 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
 801struct 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
 809static struct savekmsg *savekmsg;
 810
 811static 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
 820static 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
 831static void amiga_serial_putc(char c)
 832{
 833    custom.serdat = (unsigned char)c | 0x100;
 834    while (!(custom.serdatr & 0x2000))
 835	;
 836}
 837
 838void 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
 849void amiga_serial_puts(const char *s)
 850{
 851    amiga_serial_console_write(NULL, s, strlen(s));
 852}
 853
 854int 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
 866void 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
 905static 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
 915static 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
 928static void amiga_get_model(char *model)
 929{
 930    strcpy(model, amiga_model_name);
 931}
 932
 933
 934static 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}