arch/ppc/amiga/config.c

   1 #define m68k_debug_device debug_device
   2
   3 /*
   4  *  arch/ppc/amiga/config.c
   5  *
   6  *  Copyright (C) 1993 Hamish Macdonald
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file COPYING in the main directory of this archive
  10  * for more details.
  11  */
  12
  13 /*
  14  * Miscellaneous Amiga stuff
  15  */
  16
  17 #include <linux/config.h>
  18 #include <linux/types.h>
  19 #include <linux/kernel.h>
  20 #include <linux/mm.h>
  21 #include <linux/kd.h>
  22 #include <linux/tty.h>
  23 #include <linux/console.h>
  24 #include <linux/init.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/machdep.h>
  37 #include <asm/io.h>
  38
  39 unsigned long powerup_PCI_present;
  40 unsigned long powerup_BPPCPLUS_present;
  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     s_a500, s_a500p, s_a600, s_a1000, s_a1200, s_a2000, s_a2500, s_a3000,
  67     s_a3000t, s_a3000p, s_a4000, s_a4000t, s_cdtv, s_cd32, s_draco,
  68 };
  69
  70 static char amiga_model_name[13] = "Amiga ";
  71
  72 extern char m68k_debug_device[];
  73
  74 static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
  75 /* amiga specific irq functions */
  76 extern void amiga_init_IRQ (void);
  77 extern void (*amiga_default_handler[]) (int, void *, struct pt_regs *);
  78 extern int amiga_request_irq (unsigned int irq,
  79                               void (*handler)(int, void *, struct pt_regs *),
  80                               unsigned long flags, const char *devname,
  81                               void *dev_id);
  82 extern void amiga_free_irq (unsigned int irq, void *dev_id);
  83 extern void amiga_enable_irq (unsigned int);
  84 extern void amiga_disable_irq (unsigned int);
  85 static void amiga_get_model(char *model);
  86 static int amiga_get_hardware_list(char *buffer);
  87 /* amiga specific timer functions */
  88 static unsigned long amiga_gettimeoffset (void);
  89 static void a3000_gettod (int *, int *, int *, int *, int *, int *);
  90 static void a2000_gettod (int *, int *, int *, int *, int *, int *);
  91 static int amiga_hwclk (int, struct hwclk_time *);
  92 static int amiga_set_clock_mmss (unsigned long);
  93 #ifdef CONFIG_AMIGA_FLOPPY
  94 extern void amiga_floppy_setup(char *, int *);
  95 #endif
  96 static void amiga_reset (void);
  97 extern void amiga_init_sound(void);
  98 static void amiga_savekmsg_init(void);
  99 static void amiga_mem_console_write(struct console *co, const char *b,
 100                                     unsigned int count);
 101 void amiga_serial_console_write(struct console *co, const char *s,
 102                                 unsigned int count);
 103 static void amiga_debug_init(void);
 104 #ifdef CONFIG_HEARTBEAT
 105 static void amiga_heartbeat(int on);
 106 #endif
 107
 108 static struct console amiga_console_driver = {
 109         .name =         "debug",
 110         .flags =        CON_PRINTBUFFER,
 111         .index =        -1,
 112 };
 113
 114
 115     /*
 116      *  Motherboard Resources present in all Amiga models
 117      */
 118
 119 static struct {
 120     struct resource _ciab, _ciaa, _custom, _kickstart;
 121 } mb_resources = {
 122 //    { "Ranger Memory", 0x00c00000, 0x00c7ffff },
 123     ._ciab =      { "CIA B", 0x00bfd000, 0x00bfdfff },
 124     ._ciaa =      { "CIA A", 0x00bfe000, 0x00bfefff },
 125     ._custom =    { "Custom I/O", 0x00dff000, 0x00dfffff },
 126     ._kickstart = { "Kickstart ROM", 0x00f80000, 0x00ffffff }
 127 };
 128
 129 static struct resource rtc_resource = {
 130     NULL, 0x00dc0000, 0x00dcffff
 131 };
 132
 133 static struct resource ram_resource[NUM_MEMINFO];
 134
 135
 136     /*
 137      *  Parse an Amiga-specific record in the bootinfo
 138      */
 139
 140 int amiga_parse_bootinfo(const struct bi_record *record)
 141 {
 142     int unknown = 0;
 143     const unsigned long *data = record->data;
 144
 145     switch (record->tag) {
 146         case BI_AMIGA_MODEL:
 147         {
 148                 unsigned long d = *data;
 149
 150                 powerup_PCI_present = d & 0x100;
 151                 amiga_model = d & 0xff;
 152         }
 153         break;
 154
 155         case BI_AMIGA_ECLOCK:
 156             amiga_eclock = *data;
 157             break;
 158
 159         case BI_AMIGA_CHIPSET:
 160             amiga_chipset = *data;
 161             break;
 162
 163         case BI_AMIGA_CHIP_SIZE:
 164             amiga_chip_size = *(const int *)data;
 165             break;
 166
 167         case BI_AMIGA_VBLANK:
 168             amiga_vblank = *(const unsigned char *)data;
 169             break;
 170
 171         case BI_AMIGA_PSFREQ:
 172             amiga_psfreq = *(const unsigned char *)data;
 173             break;
 174
 175         case BI_AMIGA_AUTOCON:
 176 #ifdef CONFIG_ZORRO
 177             if (zorro_num_autocon < ZORRO_NUM_AUTO) {
 178                 const struct ConfigDev *cd = (struct ConfigDev *)data;
 179                 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
 180                 dev->rom = cd->cd_Rom;
 181                 dev->slotaddr = cd->cd_SlotAddr;
 182                 dev->slotsize = cd->cd_SlotSize;
 183                 dev->resource.start = (unsigned long)cd->cd_BoardAddr;
 184                 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1;
 185             } else
 186                 printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
 187 #endif /* CONFIG_ZORRO */
 188             break;
 189
 190         case BI_AMIGA_SERPER:
 191             /* serial port period: ignored here */
 192             break;
 193
 194         case BI_AMIGA_PUP_BRIDGE:
 195             powerup_PCI_present = *(const unsigned short *)data;
 196             break;
 197
 198         case BI_AMIGA_BPPC_SCSI:
 199             powerup_BPPCPLUS_present = *(const unsigned short *)data;
 200             break;
 201
 202         default:
 203             unknown = 1;
 204     }
 205     return(unknown);
 206 }
 207
 208     /*
 209      *  Identify builtin hardware
 210      */
 211
 212 static void __init amiga_identify(void)
 213 {
 214   /* Fill in some default values, if necessary */
 215   if (amiga_eclock == 0)
 216     amiga_eclock = 709379;
 217
 218   memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
 219
 220   printk("Amiga hardware found: ");
 221   if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
 222     printk("[%s] ", amiga_models[amiga_model-AMI_500]);
 223     strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
 224   }
 225
 226   switch(amiga_model) {
 227   case AMI_UNKNOWN:
 228     goto Generic;
 229
 230   case AMI_600:
 231   case AMI_1200:
 232     AMIGAHW_SET(A1200_IDE);
 233     AMIGAHW_SET(PCMCIA);
 234   case AMI_500:
 235   case AMI_500PLUS:
 236   case AMI_1000:
 237   case AMI_2000:
 238   case AMI_2500:
 239     AMIGAHW_SET(A2000_CLK);     /* Is this correct for all models? */
 240     goto Generic;
 241
 242   case AMI_3000:
 243   case AMI_3000T:
 244     AMIGAHW_SET(AMBER_FF);
 245     AMIGAHW_SET(MAGIC_REKICK);
 246     /* fall through */
 247   case AMI_3000PLUS:
 248     AMIGAHW_SET(A3000_SCSI);
 249     AMIGAHW_SET(A3000_CLK);
 250     AMIGAHW_SET(ZORRO3);
 251     goto Generic;
 252
 253   case AMI_4000T:
 254     AMIGAHW_SET(A4000_SCSI);
 255     /* fall through */
 256   case AMI_4000:
 257     AMIGAHW_SET(A4000_IDE);
 258     AMIGAHW_SET(A3000_CLK);
 259     AMIGAHW_SET(ZORRO3);
 260     goto Generic;
 261
 262   case AMI_CDTV:
 263   case AMI_CD32:
 264     AMIGAHW_SET(CD_ROM);
 265     AMIGAHW_SET(A2000_CLK);             /* Is this correct? */
 266     goto Generic;
 267
 268   Generic:
 269     AMIGAHW_SET(AMI_VIDEO);
 270     AMIGAHW_SET(AMI_BLITTER);
 271     AMIGAHW_SET(AMI_AUDIO);
 272     AMIGAHW_SET(AMI_FLOPPY);
 273     AMIGAHW_SET(AMI_KEYBOARD);
 274     AMIGAHW_SET(AMI_MOUSE);
 275     AMIGAHW_SET(AMI_SERIAL);
 276     AMIGAHW_SET(AMI_PARALLEL);
 277     AMIGAHW_SET(CHIP_RAM);
 278     AMIGAHW_SET(PAULA);
 279
 280     switch(amiga_chipset) {
 281     case CS_OCS:
 282     case CS_ECS:
 283     case CS_AGA:
 284       switch (custom.deniseid & 0xf) {
 285       case 0x0c:
 286         AMIGAHW_SET(DENISE_HR);
 287         break;
 288       case 0x08:
 289         AMIGAHW_SET(LISA);
 290         break;
 291       }
 292       break;
 293     default:
 294       AMIGAHW_SET(DENISE);
 295       break;
 296     }
 297     switch ((custom.vposr>>8) & 0x7f) {
 298     case 0x00:
 299       AMIGAHW_SET(AGNUS_PAL);
 300       break;
 301     case 0x10:
 302       AMIGAHW_SET(AGNUS_NTSC);
 303       break;
 304     case 0x20:
 305     case 0x21:
 306       AMIGAHW_SET(AGNUS_HR_PAL);
 307       break;
 308     case 0x30:
 309     case 0x31:
 310       AMIGAHW_SET(AGNUS_HR_NTSC);
 311       break;
 312     case 0x22:
 313     case 0x23:
 314       AMIGAHW_SET(ALICE_PAL);
 315       break;
 316     case 0x32:
 317     case 0x33:
 318       AMIGAHW_SET(ALICE_NTSC);
 319       break;
 320     }
 321     AMIGAHW_SET(ZORRO);
 322     break;
 323
 324   case AMI_DRACO:
 325     panic("No support for Draco yet");
 326
 327   default:
 328     panic("Unknown Amiga Model");
 329   }
 330
 331 #define AMIGAHW_ANNOUNCE(name, str)                     \
 332   if (AMIGAHW_PRESENT(name))                            \
 333     printk(str)
 334
 335   AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
 336   AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
 337   AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
 338   AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
 339   AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
 340   AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
 341   AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
 342   AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
 343   AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
 344   AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
 345   AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
 346   AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
 347   AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
 348   AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
 349   AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
 350   AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
 351   AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
 352   AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
 353   AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
 354   AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
 355   AMIGAHW_ANNOUNCE(LISA, "LISA ");
 356   AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
 357   AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
 358   AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
 359   AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
 360   AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
 361   AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
 362   AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
 363   AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
 364   if (AMIGAHW_PRESENT(ZORRO))
 365     printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
 366   printk("\n");
 367
 368 #undef AMIGAHW_ANNOUNCE
 369 }
 370
 371     /*
 372      *  Setup the Amiga configuration info
 373      */
 374
 375 void __init config_amiga(void)
 376 {
 377   int i;
 378
 379   amiga_debug_init();
 380   amiga_identify();
 381
 382   /* Some APUS boxes may have PCI memory, but ... */
 383   iomem_resource.name = "Memory";
 384   for (i = 0; i < 4; i++)
 385     request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
 386
 387   mach_sched_init      = amiga_sched_init;
 388   mach_init_IRQ        = amiga_init_IRQ;
 389 #ifndef CONFIG_APUS
 390   mach_default_handler = &amiga_default_handler;
 391   mach_request_irq     = amiga_request_irq;
 392   mach_free_irq        = amiga_free_irq;
 393   enable_irq           = amiga_enable_irq;
 394   disable_irq          = amiga_disable_irq;
 395 #endif
 396   mach_get_model       = amiga_get_model;
 397   mach_get_hardware_list = amiga_get_hardware_list;
 398   mach_gettimeoffset   = amiga_gettimeoffset;
 399   if (AMIGAHW_PRESENT(A3000_CLK)){
 400     mach_gettod  = a3000_gettod;
 401     rtc_resource.name = "A3000 RTC";
 402     request_resource(&iomem_resource, &rtc_resource);
 403   }
 404   else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */
 405     mach_gettod  = a2000_gettod;
 406     rtc_resource.name = "A2000 RTC";
 407     request_resource(&iomem_resource, &rtc_resource);
 408   }
 409
 410   mach_max_dma_address = 0xffffffff; /*
 411                                       * default MAX_DMA=0xffffffff
 412                                       * on all machines. If we don't
 413                                       * do so, the SCSI code will not
 414                                       * be able to allocate any mem
 415                                       * for transfers, unless we are
 416                                       * dealing with a Z2 mem only
 417                                       * system.                  /Jes
 418                                       */
 419
 420   mach_hwclk           = amiga_hwclk;
 421   mach_set_clock_mmss  = amiga_set_clock_mmss;
 422 #ifdef CONFIG_AMIGA_FLOPPY
 423   mach_floppy_setup    = amiga_floppy_setup;
 424 #endif
 425   mach_reset           = amiga_reset;
 426 #ifdef CONFIG_HEARTBEAT
 427   mach_heartbeat = amiga_heartbeat;
 428 #endif
 429
 430   /* Fill in the clock values (based on the 700 kHz E-Clock) */
 431   amiga_masterclock = 40*amiga_eclock;  /* 28 MHz */
 432   amiga_colorclock = 5*amiga_eclock;    /* 3.5 MHz */
 433
 434   /* clear all DMA bits */
 435   custom.dmacon = DMAF_ALL;
 436   /* ensure that the DMA master bit is set */
 437   custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
 438
 439   /* request all RAM */
 440   for (i = 0; i < m68k_num_memory; i++) {
 441     ram_resource[i].name =
 442       (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
 443       (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
 444       "16-bit Slow RAM";
 445     ram_resource[i].start = m68k_memory[i].addr;
 446     ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
 447     request_resource(&iomem_resource, &ram_resource[i]);
 448   }
 449
 450   /* initialize chipram allocator */
 451   amiga_chip_init ();
 452
 453   /* debugging using chipram */
 454   if (!strcmp( m68k_debug_device, "mem" )){
 455           if (!AMIGAHW_PRESENT(CHIP_RAM))
 456                   printk("Warning: no chipram present for debugging\n");
 457           else {
 458                   amiga_savekmsg_init();
 459                   amiga_console_driver.write = amiga_mem_console_write;
 460                   register_console(&amiga_console_driver);
 461           }
 462   }
 463
 464   /* our beloved beeper */
 465   if (AMIGAHW_PRESENT(AMI_AUDIO))
 466           amiga_init_sound();
 467
 468   /*
 469    * if it is an A3000, set the magic bit that forces
 470    * a hard rekick
 471    */
 472   if (AMIGAHW_PRESENT(MAGIC_REKICK))
 473           *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
 474 }
 475
 476 static unsigned short jiffy_ticks;
 477
 478 static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *,
 479                                                 struct pt_regs *))
 480 {
 481         static struct resource sched_res = {
 482             "timer", 0x00bfd400, 0x00bfd5ff,
 483         };
 484         jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
 485
 486         if (request_resource(&mb_resources._ciab, &sched_res))
 487             printk("Cannot allocate ciab.ta{lo,hi}\n");
 488         ciab.cra &= 0xC0;   /* turn off timer A, continuous mode, from Eclk */
 489         ciab.talo = jiffy_ticks % 256;
 490         ciab.tahi = jiffy_ticks / 256;
 491
 492         /* install interrupt service routine for CIAB Timer A
 493          *
 494          * Please don't change this to use ciaa, as it interferes with the
 495          * SCSI code. We'll have to take a look at this later
 496          */
 497         request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
 498         /* start timer */
 499         ciab.cra |= 0x11;
 500 }
 501
 502 #define TICK_SIZE 10000
 503
 504 extern unsigned char cia_get_irq_mask(unsigned int irq);
 505
 506 /* This is always executed with interrupts disabled.  */
 507 static unsigned long amiga_gettimeoffset (void)
 508 {
 509         unsigned short hi, lo, hi2;
 510         unsigned long ticks, offset = 0;
 511
 512         /* read CIA B timer A current value */
 513         hi  = ciab.tahi;
 514         lo  = ciab.talo;
 515         hi2 = ciab.tahi;
 516
 517         if (hi != hi2) {
 518                 lo = ciab.talo;
 519                 hi = hi2;
 520         }
 521
 522         ticks = hi << 8 | lo;
 523
 524         if (ticks > jiffy_ticks / 2)
 525                 /* check for pending interrupt */
 526                 if (cia_get_irq_mask(IRQ_AMIGA_CIAB) & CIA_ICR_TA)
 527                         offset = 10000;
 528
 529         ticks = jiffy_ticks - ticks;
 530         ticks = (10000 * ticks) / jiffy_ticks;
 531
 532         return ticks + offset;
 533 }
 534
 535 static void a3000_gettod (int *yearp, int *monp, int *dayp,
 536                           int *hourp, int *minp, int *secp)
 537 {
 538         volatile struct tod3000 *tod = TOD_3000;
 539
 540         tod->cntrl1 = TOD3000_CNTRL1_HOLD;
 541
 542         *secp  = tod->second1 * 10 + tod->second2;
 543         *minp  = tod->minute1 * 10 + tod->minute2;
 544         *hourp = tod->hour1   * 10 + tod->hour2;
 545         *dayp  = tod->day1    * 10 + tod->day2;
 546         *monp  = tod->month1  * 10 + tod->month2;
 547         *yearp = tod->year1   * 10 + tod->year2;
 548
 549         tod->cntrl1 = TOD3000_CNTRL1_FREE;
 550 }
 551
 552 static void a2000_gettod (int *yearp, int *monp, int *dayp,
 553                           int *hourp, int *minp, int *secp)
 554 {
 555         volatile struct tod2000 *tod = TOD_2000;
 556
 557         tod->cntrl1 = TOD2000_CNTRL1_HOLD;
 558
 559         while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
 560                 ;
 561
 562         *secp  = tod->second1     * 10 + tod->second2;
 563         *minp  = tod->minute1     * 10 + tod->minute2;
 564         *hourp = (tod->hour1 & 3) * 10 + tod->hour2;
 565         *dayp  = tod->day1        * 10 + tod->day2;
 566         *monp  = tod->month1      * 10 + tod->month2;
 567         *yearp = tod->year1       * 10 + tod->year2;
 568
 569         if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
 570                 if (!(tod->hour1 & TOD2000_HOUR1_PM) && *hourp == 12)
 571                         *hourp = 0;
 572                 else if ((tod->hour1 & TOD2000_HOUR1_PM) && *hourp != 12)
 573                         *hourp += 12;
 574         }
 575
 576         tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
 577 }
 578
 579 static int amiga_hwclk(int op, struct hwclk_time *t)
 580 {
 581         if (AMIGAHW_PRESENT(A3000_CLK)) {
 582                 volatile struct tod3000 *tod = TOD_3000;
 583
 584                 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
 585
 586                 if (!op) { /* read */
 587                         t->sec  = tod->second1 * 10 + tod->second2;
 588                         t->min  = tod->minute1 * 10 + tod->minute2;
 589                         t->hour = tod->hour1   * 10 + tod->hour2;
 590                         t->day  = tod->day1    * 10 + tod->day2;
 591                         t->wday = tod->weekday;
 592                         t->mon  = tod->month1  * 10 + tod->month2 - 1;
 593                         t->year = tod->year1   * 10 + tod->year2;
 594                         if (t->year <= 69)
 595                                 t->year += 100;
 596                 } else {
 597                         tod->second1 = t->sec / 10;
 598                         tod->second2 = t->sec % 10;
 599                         tod->minute1 = t->min / 10;
 600                         tod->minute2 = t->min % 10;
 601                         tod->hour1   = t->hour / 10;
 602                         tod->hour2   = t->hour % 10;
 603                         tod->day1    = t->day / 10;
 604                         tod->day2    = t->day % 10;
 605                         if (t->wday != -1)
 606                                 tod->weekday = t->wday;
 607                         tod->month1  = (t->mon + 1) / 10;
 608                         tod->month2  = (t->mon + 1) % 10;
 609                         if (t->year >= 100)
 610                                 t->year -= 100;
 611                         tod->year1   = t->year / 10;
 612                         tod->year2   = t->year % 10;
 613                 }
 614
 615                 tod->cntrl1 = TOD3000_CNTRL1_FREE;
 616         } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
 617                 volatile struct tod2000 *tod = TOD_2000;
 618
 619                 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
 620
 621                 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
 622                         ;
 623
 624                 if (!op) { /* read */
 625                         t->sec  = tod->second1     * 10 + tod->second2;
 626                         t->min  = tod->minute1     * 10 + tod->minute2;
 627                         t->hour = (tod->hour1 & 3) * 10 + tod->hour2;
 628                         t->day  = tod->day1        * 10 + tod->day2;
 629                         t->wday = tod->weekday;
 630                         t->mon  = tod->month1      * 10 + tod->month2 - 1;
 631                         t->year = tod->year1       * 10 + tod->year2;
 632                         if (t->year <= 69)
 633                                 t->year += 100;
 634
 635                         if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){
 636                                 if (!(tod->hour1 & TOD2000_HOUR1_PM) && t->hour == 12)
 637                                         t->hour = 0;
 638                                 else if ((tod->hour1 & TOD2000_HOUR1_PM) && t->hour != 12)
 639                                         t->hour += 12;
 640                         }
 641                 } else {
 642                         tod->second1 = t->sec / 10;
 643                         tod->second2 = t->sec % 10;
 644                         tod->minute1 = t->min / 10;
 645                         tod->minute2 = t->min % 10;
 646                         if (tod->cntrl3 & TOD2000_CNTRL3_24HMODE)
 647                                 tod->hour1 = t->hour / 10;
 648                         else if (t->hour >= 12)
 649                                 tod->hour1 = TOD2000_HOUR1_PM +
 650                                         (t->hour - 12) / 10;
 651                         else
 652                                 tod->hour1 = t->hour / 10;
 653                         tod->hour2   = t->hour % 10;
 654                         tod->day1    = t->day / 10;
 655                         tod->day2    = t->day % 10;
 656                         if (t->wday != -1)
 657                                 tod->weekday = t->wday;
 658                         tod->month1  = (t->mon + 1) / 10;
 659                         tod->month2  = (t->mon + 1) % 10;
 660                         if (t->year >= 100)
 661                                 t->year -= 100;
 662                         tod->year1   = t->year / 10;
 663                         tod->year2   = t->year % 10;
 664                 }
 665
 666                 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
 667         }
 668
 669         return 0;
 670 }
 671
 672 static int amiga_set_clock_mmss (unsigned long nowtime)
 673 {
 674         short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
 675
 676         if (AMIGAHW_PRESENT(A3000_CLK)) {
 677                 volatile struct tod3000 *tod = TOD_3000;
 678
 679                 tod->cntrl1 = TOD3000_CNTRL1_HOLD;
 680
 681                 tod->second1 = real_seconds / 10;
 682                 tod->second2 = real_seconds % 10;
 683                 tod->minute1 = real_minutes / 10;
 684                 tod->minute2 = real_minutes % 10;
 685
 686                 tod->cntrl1 = TOD3000_CNTRL1_FREE;
 687         } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
 688                 volatile struct tod2000 *tod = TOD_2000;
 689
 690                 tod->cntrl1 = TOD2000_CNTRL1_HOLD;
 691
 692                 while (tod->cntrl1 & TOD2000_CNTRL1_BUSY)
 693                         ;
 694
 695                 tod->second1 = real_seconds / 10;
 696                 tod->second2 = real_seconds % 10;
 697                 tod->minute1 = real_minutes / 10;
 698                 tod->minute2 = real_minutes % 10;
 699
 700                 tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD;
 701         }
 702
 703         return 0;
 704 }
 705
 706 static NORET_TYPE void amiga_reset( void )
 707     ATTRIB_NORET;
 708
 709 static void amiga_reset (void)
 710 {
 711   for (;;);
 712 }
 713
 714
 715     /*
 716      *  Debugging
 717      */
 718
 719 #define SAVEKMSG_MAXMEM         128*1024
 720
 721 #define SAVEKMSG_MAGIC1         0x53415645      /* 'SAVE' */
 722 #define SAVEKMSG_MAGIC2         0x4B4D5347      /* 'KMSG' */
 723
 724 struct savekmsg {
 725     unsigned long magic1;               /* SAVEKMSG_MAGIC1 */
 726     unsigned long magic2;               /* SAVEKMSG_MAGIC2 */
 727     unsigned long magicptr;             /* address of magic1 */
 728     unsigned long size;
 729     char data[0];
 730 };
 731
 732 static struct savekmsg *savekmsg = NULL;
 733
 734 static void amiga_mem_console_write(struct console *co, const char *s,
 735                                     unsigned int count)
 736 {
 737     if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
 738         memcpy(savekmsg->data+savekmsg->size, s, count);
 739         savekmsg->size += count;
 740     }
 741 }
 742
 743 static void amiga_savekmsg_init(void)
 744 {
 745     static struct resource debug_res = { "Debug" };
 746
 747     savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);
 748     savekmsg->magic1 = SAVEKMSG_MAGIC1;
 749     savekmsg->magic2 = SAVEKMSG_MAGIC2;
 750     savekmsg->magicptr = virt_to_phys(savekmsg);
 751     savekmsg->size = 0;
 752 }
 753
 754 static void amiga_serial_putc(char c)
 755 {
 756     custom.serdat = (unsigned char)c | 0x100;
 757     mb();
 758     while (!(custom.serdatr & 0x2000))
 759        ;
 760 }
 761
 762 void amiga_serial_console_write(struct console *co, const char *s,
 763                                        unsigned int count)
 764 {
 765 #if 0 /* def CONFIG_KGDB */
 766         /* FIXME:APUS GDB doesn't seem to like O-packages before it is
 767            properly connected with the target. */
 768         __gdb_output_string (s, count);
 769 #else
 770         while (count--) {
 771                 if (*s == '\n')
 772                         amiga_serial_putc('\r');
 773                 amiga_serial_putc(*s++);
 774         }
 775 #endif
 776 }
 777
 778 #ifdef CONFIG_SERIAL_CONSOLE
 779 void amiga_serial_puts(const char *s)
 780 {
 781     amiga_serial_console_write(NULL, s, strlen(s));
 782 }
 783
 784 int amiga_serial_console_wait_key(struct console *co)
 785 {
 786     int ch;
 787
 788     while (!(custom.intreqr & IF_RBF))
 789         barrier();
 790     ch = custom.serdatr & 0xff;
 791     /* clear the interrupt, so that another character can be read */
 792     custom.intreq = IF_RBF;
 793     return ch;
 794 }
 795
 796 void amiga_serial_gets(struct console *co, char *s, int len)
 797 {
 798     int ch, cnt = 0;
 799
 800     while (1) {
 801         ch = amiga_serial_console_wait_key(co);
 802
 803         /* Check for backspace. */
 804         if (ch == 8 || ch == 127) {
 805             if (cnt == 0) {
 806                 amiga_serial_putc('\007');
 807                 continue;
 808             }
 809             cnt--;
 810             amiga_serial_puts("\010 \010");
 811             continue;
 812         }
 813
 814         /* Check for enter. */
 815         if (ch == 10 || ch == 13)
 816             break;
 817
 818         /* See if line is too long. */
 819         if (cnt >= len + 1) {
 820             amiga_serial_putc(7);
 821             cnt--;
 822             continue;
 823         }
 824
 825         /* Store and echo character. */
 826         s[cnt++] = ch;
 827         amiga_serial_putc(ch);
 828     }
 829     /* Print enter. */
 830     amiga_serial_puts("\r\n");
 831     s[cnt] = 0;
 832 }
 833 #endif
 834
 835 static void __init amiga_debug_init(void)
 836 {
 837         if (!strcmp( m68k_debug_device, "ser" )) {
 838                 /* no initialization required (?) */
 839                 amiga_console_driver.write = amiga_serial_console_write;
 840                 register_console(&amiga_console_driver);
 841         }
 842 }
 843
 844 #ifdef CONFIG_HEARTBEAT
 845 static void amiga_heartbeat(int on)
 846 {
 847     if (on)
 848         ciaa.pra &= ~2;
 849     else
 850         ciaa.pra |= 2;
 851 }
 852 #endif
 853
 854     /*
 855      *  Amiga specific parts of /proc
 856      */
 857
 858 static void amiga_get_model(char *model)
 859 {
 860     strcpy(model, amiga_model_name);
 861 }
 862
 863
 864 static int amiga_get_hardware_list(char *buffer)
 865 {
 866     int len = 0;
 867
 868     if (AMIGAHW_PRESENT(CHIP_RAM))
 869         len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
 870     len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
 871                    amiga_psfreq, amiga_eclock);
 872     if (AMIGAHW_PRESENT(AMI_VIDEO)) {
 873         char *type;
 874         switch(amiga_chipset) {
 875             case CS_OCS:
 876                 type = "OCS";
 877                 break;
 878             case CS_ECS:
 879                 type = "ECS";
 880                 break;
 881             case CS_AGA:
 882                 type = "AGA";
 883                 break;
 884             default:
 885                 type = "Old or Unknown";
 886                 break;
 887         }
 888         len += sprintf(buffer+len, "Graphics:\t%s\n", type);
 889     }
 890
 891 #define AMIGAHW_ANNOUNCE(name, str)                     \
 892     if (AMIGAHW_PRESENT(name))                          \
 893         len += sprintf (buffer+len, "\t%s\n", str)
 894
 895     len += sprintf (buffer + len, "Detected hardware:\n");
 896
 897     AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
 898     AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
 899     AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
 900     AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
 901     AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
 902     AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
 903     AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
 904     AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
 905     AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
 906     AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
 907     AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
 908     AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
 909     AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
 910     AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
 911     AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
 912     AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
 913     AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
 914     AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
 915     AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
 916     AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
 917     AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
 918     AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
 919     AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
 920     AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
 921     AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
 922     AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
 923     AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
 924     AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
 925     AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
 926     if (AMIGAHW_PRESENT(ZORRO))
 927         len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion "
 928                                    "Device%s\n",
 929                        AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
 930                        zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
 931
 932 #undef AMIGAHW_ANNOUNCE
 933
 934     return(len);
 935 }
 936
 937 #ifdef CONFIG_APUS
 938 int get_hardware_list(char *buffer)
 939 {
 940         extern int get_cpuinfo(char *buffer);
 941         int len = 0;
 942         char model[80];
 943         u_long mem;
 944         int i;
 945
 946         if (mach_get_model)
 947                 mach_get_model(model);
 948         else
 949                 strcpy(model, "Unknown PowerPC");
 950
 951         len += sprintf(buffer+len, "Model:\t\t%s\n", model);
 952         len += get_cpuinfo(buffer+len);
 953         for (mem = 0, i = 0; i < m68k_realnum_memory; i++)
 954                 mem += m68k_memory[i].size;
 955         len += sprintf(buffer+len, "System Memory:\t%ldK\n", mem>>10);
 956
 957         if (mach_get_hardware_list)
 958                 len += mach_get_hardware_list(buffer+len);
 959
 960         return(len);
 961 }
 962 #endif