arch/m68k/atari/config.c

   1 /*
   2  *  linux/arch/m68k/atari/config.c
   3  *
   4  *  Copyright (C) 1994 Bjoern Brauel
   5  *
   6  *  5/2/94 Roman Hodek:
   7  *    Added setting of time_adj to get a better clock.
   8  *
   9  *  5/14/94 Roman Hodek:
  10  *    gettod() for TT
  11  *
  12  *  5/15/94 Roman Hodek:
  13  *    hard_reset_now() for Atari (and others?)
  14  *
  15  *  94/12/30 Andreas Schwab:
  16  *    atari_sched_init fixed to get precise clock.
  17  *
  18  * This file is subject to the terms and conditions of the GNU General Public
  19  * License.  See the file COPYING in the main directory of this archive
  20  * for more details.
  21  */
  22
  23 /*
  24  * Miscellaneous atari stuff
  25  */
  26
  27 #include <linux/types.h>
  28 #include <linux/mm.h>
  29 #include <linux/seq_file.h>
  30 #include <linux/console.h>
  31 #include <linux/init.h>
  32 #include <linux/delay.h>
  33 #include <linux/ioport.h>
  34 #include <linux/vt_kern.h>
  35 #include <linux/module.h>
  36
  37 #include <asm/bootinfo.h>
  38 #include <asm/setup.h>
  39 #include <asm/atarihw.h>
  40 #include <asm/atariints.h>
  41 #include <asm/atari_stram.h>
  42 #include <asm/system.h>
  43 #include <asm/machdep.h>
  44 #include <asm/hwtest.h>
  45 #include <asm/io.h>
  46
  47 u_long atari_mch_cookie;
  48 EXPORT_SYMBOL(atari_mch_cookie);
  49
  50 u_long atari_mch_type;
  51 EXPORT_SYMBOL(atari_mch_type);
  52
  53 struct atari_hw_present atari_hw_present;
  54 EXPORT_SYMBOL(atari_hw_present);
  55
  56 u_long atari_switches;
  57 EXPORT_SYMBOL(atari_switches);
  58
  59 int atari_dont_touch_floppy_select;
  60 EXPORT_SYMBOL(atari_dont_touch_floppy_select);
  61
  62 int atari_rtc_year_offset;
  63
  64 /* local function prototypes */
  65 static void atari_reset(void);
  66 static void atari_get_model(char *model);
  67 static void atari_get_hardware_list(struct seq_file *m);
  68
  69 /* atari specific irq functions */
  70 extern void atari_init_IRQ (void);
  71 extern void atari_mksound(unsigned int count, unsigned int ticks);
  72 #ifdef CONFIG_HEARTBEAT
  73 static void atari_heartbeat(int on);
  74 #endif
  75
  76 /* atari specific timer functions (in time.c) */
  77 extern void atari_sched_init(irq_handler_t);
  78 extern unsigned long atari_gettimeoffset (void);
  79 extern int atari_mste_hwclk (int, struct rtc_time *);
  80 extern int atari_tt_hwclk (int, struct rtc_time *);
  81 extern int atari_mste_set_clock_mmss (unsigned long);
  82 extern int atari_tt_set_clock_mmss (unsigned long);
  83
  84
  85 /* ++roman: This is a more elaborate test for an SCC chip, since the plain
  86  * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
  87  * board in the Medusa is possible. Also, the addresses where the ST_ESCC
  88  * resides generate DTACK without the chip, too.
  89  * The method is to write values into the interrupt vector register, that
  90  * should be readable without trouble (from channel A!).
  91  */
  92
  93 static int __init scc_test(volatile char *ctla)
  94 {
  95         if (!hwreg_present(ctla))
  96                 return 0;
  97         MFPDELAY();
  98
  99         *ctla = 2;
 100         MFPDELAY();
 101         *ctla = 0x40;
 102         MFPDELAY();
 103
 104         *ctla = 2;
 105         MFPDELAY();
 106         if (*ctla != 0x40)
 107                 return 0;
 108         MFPDELAY();
 109
 110         *ctla = 2;
 111         MFPDELAY();
 112         *ctla = 0x60;
 113         MFPDELAY();
 114
 115         *ctla = 2;
 116         MFPDELAY();
 117         if (*ctla != 0x60)
 118                 return 0;
 119
 120         return 1;
 121 }
 122
 123
 124     /*
 125      *  Parse an Atari-specific record in the bootinfo
 126      */
 127
 128 int __init atari_parse_bootinfo(const struct bi_record *record)
 129 {
 130         int unknown = 0;
 131         const u_long *data = record->data;
 132
 133         switch (record->tag) {
 134         case BI_ATARI_MCH_COOKIE:
 135                 atari_mch_cookie = *data;
 136                 break;
 137         case BI_ATARI_MCH_TYPE:
 138                 atari_mch_type = *data;
 139                 break;
 140         default:
 141                 unknown = 1;
 142                 break;
 143         }
 144         return unknown;
 145 }
 146
 147
 148 /* Parse the Atari-specific switches= option. */
 149 static int __init atari_switches_setup(char *str)
 150 {
 151         char switches[strlen(str) + 1];
 152         char *p;
 153         int ovsc_shift;
 154         char *args = switches;
 155
 156         if (!MACH_IS_ATARI)
 157                 return 0;
 158
 159         /* copy string to local array, strsep works destructively... */
 160         strcpy(switches, str);
 161         atari_switches = 0;
 162
 163         /* parse the options */
 164         while ((p = strsep(&args, ",")) != NULL) {
 165                 if (!*p)
 166                         continue;
 167                 ovsc_shift = 0;
 168                 if (strncmp(p, "ov_", 3) == 0) {
 169                         p += 3;
 170                         ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
 171                 }
 172
 173                 if (strcmp(p, "ikbd") == 0) {
 174                         /* RTS line of IKBD ACIA */
 175                         atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
 176                 } else if (strcmp(p, "midi") == 0) {
 177                         /* RTS line of MIDI ACIA */
 178                         atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
 179                 } else if (strcmp(p, "snd6") == 0) {
 180                         atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
 181                 } else if (strcmp(p, "snd7") == 0) {
 182                         atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
 183                 }
 184         }
 185         return 0;
 186 }
 187
 188 early_param("switches", atari_switches_setup);
 189
 190
 191     /*
 192      *  Setup the Atari configuration info
 193      */
 194
 195 void __init config_atari(void)
 196 {
 197         unsigned short tos_version;
 198
 199         memset(&atari_hw_present, 0, sizeof(atari_hw_present));
 200
 201         /* Change size of I/O space from 64KB to 4GB. */
 202         ioport_resource.end  = 0xFFFFFFFF;
 203
 204         mach_sched_init      = atari_sched_init;
 205         mach_init_IRQ        = atari_init_IRQ;
 206         mach_get_model   = atari_get_model;
 207         mach_get_hardware_list = atari_get_hardware_list;
 208         mach_gettimeoffset   = atari_gettimeoffset;
 209         mach_reset           = atari_reset;
 210         mach_max_dma_address = 0xffffff;
 211 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 212         mach_beep          = atari_mksound;
 213 #endif
 214 #ifdef CONFIG_HEARTBEAT
 215         mach_heartbeat = atari_heartbeat;
 216 #endif
 217
 218         /* Set switches as requested by the user */
 219         if (atari_switches & ATARI_SWITCH_IKBD)
 220                 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
 221         if (atari_switches & ATARI_SWITCH_MIDI)
 222                 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
 223         if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
 224                 sound_ym.rd_data_reg_sel = 14;
 225                 sound_ym.wd_data = sound_ym.rd_data_reg_sel |
 226                                    ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
 227                                    ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
 228         }
 229
 230         /* ++bjoern:
 231          * Determine hardware present
 232          */
 233
 234         printk("Atari hardware found: ");
 235         if (MACH_IS_MEDUSA) {
 236                 /* There's no Atari video hardware on the Medusa, but all the
 237                  * addresses below generate a DTACK so no bus error occurs! */
 238         } else if (hwreg_present(f030_xreg)) {
 239                 ATARIHW_SET(VIDEL_SHIFTER);
 240                 printk("VIDEL ");
 241                 /* This is a temporary hack: If there is Falcon video
 242                  * hardware, we assume that the ST-DMA serves SCSI instead of
 243                  * ACSI. In the future, there should be a better method for
 244                  * this...
 245                  */
 246                 ATARIHW_SET(ST_SCSI);
 247                 printk("STDMA-SCSI ");
 248         } else if (hwreg_present(tt_palette)) {
 249                 ATARIHW_SET(TT_SHIFTER);
 250                 printk("TT_SHIFTER ");
 251         } else if (hwreg_present(&shifter.bas_hi)) {
 252                 if (hwreg_present(&shifter.bas_lo) &&
 253                     (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) {
 254                         ATARIHW_SET(EXTD_SHIFTER);
 255                         printk("EXTD_SHIFTER ");
 256                 } else {
 257                         ATARIHW_SET(STND_SHIFTER);
 258                         printk("STND_SHIFTER ");
 259                 }
 260         }
 261         if (hwreg_present(&st_mfp.par_dt_reg)) {
 262                 ATARIHW_SET(ST_MFP);
 263                 printk("ST_MFP ");
 264         }
 265         if (hwreg_present(&tt_mfp.par_dt_reg)) {
 266                 ATARIHW_SET(TT_MFP);
 267                 printk("TT_MFP ");
 268         }
 269         if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 270                 ATARIHW_SET(SCSI_DMA);
 271                 printk("TT_SCSI_DMA ");
 272         }
 273         /*
 274          * The ST-DMA address registers aren't readable
 275          * on all Medusas, so the test below may fail
 276          */
 277         if (MACH_IS_MEDUSA ||
 278             (hwreg_present(&st_dma.dma_vhi) &&
 279              (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
 280              st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
 281              (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
 282              st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
 283                 ATARIHW_SET(EXTD_DMA);
 284                 printk("EXTD_DMA ");
 285         }
 286         if (hwreg_present(&tt_scsi.scsi_data)) {
 287                 ATARIHW_SET(TT_SCSI);
 288                 printk("TT_SCSI ");
 289         }
 290         if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 291                 ATARIHW_SET(YM_2149);
 292                 printk("YM2149 ");
 293         }
 294         if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 295                 ATARIHW_SET(PCM_8BIT);
 296                 printk("PCM ");
 297         }
 298         if (hwreg_present(&falcon_codec.unused5)) {
 299                 ATARIHW_SET(CODEC);
 300                 printk("CODEC ");
 301         }
 302         if (hwreg_present(&dsp56k_host_interface.icr)) {
 303                 ATARIHW_SET(DSP56K);
 304                 printk("DSP56K ");
 305         }
 306         if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
 307 #if 0
 308             /* This test sucks! Who knows some better? */
 309             (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
 310             (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
 311 #else
 312             !MACH_IS_MEDUSA
 313 #endif
 314             ) {
 315                 ATARIHW_SET(SCC_DMA);
 316                 printk("SCC_DMA ");
 317         }
 318         if (scc_test(&scc.cha_a_ctrl)) {
 319                 ATARIHW_SET(SCC);
 320                 printk("SCC ");
 321         }
 322         if (scc_test(&st_escc.cha_b_ctrl)) {
 323                 ATARIHW_SET(ST_ESCC);
 324                 printk("ST_ESCC ");
 325         }
 326         if (hwreg_present(&tt_scu.sys_mask)) {
 327                 ATARIHW_SET(SCU);
 328                 /* Assume a VME bus if there's a SCU */
 329                 ATARIHW_SET(VME);
 330                 printk("VME SCU ");
 331         }
 332         if (hwreg_present((void *)(0xffff9210))) {
 333                 ATARIHW_SET(ANALOG_JOY);
 334                 printk("ANALOG_JOY ");
 335         }
 336         if (hwreg_present(blitter.halftone)) {
 337                 ATARIHW_SET(BLITTER);
 338                 printk("BLITTER ");
 339         }
 340         if (hwreg_present((void *)0xfff00039)) {
 341                 ATARIHW_SET(IDE);
 342                 printk("IDE ");
 343         }
 344 #if 1 /* This maybe wrong */
 345         if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
 346             hwreg_present(&tt_microwire.mask) &&
 347             (tt_microwire.mask = 0x7ff,
 348              udelay(1),
 349              tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
 350              udelay(1),
 351              tt_microwire.data != 0)) {
 352                 ATARIHW_SET(MICROWIRE);
 353                 while (tt_microwire.mask != 0x7ff)
 354                         ;
 355                 printk("MICROWIRE ");
 356         }
 357 #endif
 358         if (hwreg_present(&tt_rtc.regsel)) {
 359                 ATARIHW_SET(TT_CLK);
 360                 printk("TT_CLK ");
 361                 mach_hwclk = atari_tt_hwclk;
 362                 mach_set_clock_mmss = atari_tt_set_clock_mmss;
 363         }
 364         if (hwreg_present(&mste_rtc.sec_ones)) {
 365                 ATARIHW_SET(MSTE_CLK);
 366                 printk("MSTE_CLK ");
 367                 mach_hwclk = atari_mste_hwclk;
 368                 mach_set_clock_mmss = atari_mste_set_clock_mmss;
 369         }
 370         if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
 371             hwreg_write(&dma_wd.fdc_speed, 0)) {
 372                 ATARIHW_SET(FDCSPEED);
 373                 printk("FDC_SPEED ");
 374         }
 375         if (!ATARIHW_PRESENT(ST_SCSI)) {
 376                 ATARIHW_SET(ACSI);
 377                 printk("ACSI ");
 378         }
 379         printk("\n");
 380
 381         if (CPU_IS_040_OR_060)
 382                 /* Now it seems to be safe to turn of the tt0 transparent
 383                  * translation (the one that must not be turned off in
 384                  * head.S...)
 385                  */
 386                 asm volatile ("\n"
 387                         "       moveq   #0,%%d0\n"
 388                         "       .chip   68040\n"
 389                         "       movec   %%d0,%%itt0\n"
 390                         "       movec   %%d0,%%dtt0\n"
 391                         "       .chip   68k"
 392                         : /* no outputs */
 393                         : /* no inputs */
 394                         : "d0");
 395
 396         /* allocator for memory that must reside in st-ram */
 397         atari_stram_init();
 398
 399         /* Set up a mapping for the VMEbus address region:
 400          *
 401          * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
 402          * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
 403          * 0xfe000000 virt., because this can be done with a single
 404          * transparent translation. On the 68040, lots of often unused
 405          * page tables would be needed otherwise. On a MegaSTE or similar,
 406          * the highest byte is stripped off by hardware due to the 24 bit
 407          * design of the bus.
 408          */
 409
 410         if (CPU_IS_020_OR_030) {
 411                 unsigned long tt1_val;
 412                 tt1_val = 0xfe008543;   /* Translate 0xfexxxxxx, enable, cache
 413                                          * inhibit, read and write, FDC mask = 3,
 414                                          * FDC val = 4 -> Supervisor only */
 415                 asm volatile ("\n"
 416                         "       .chip   68030\n"
 417                         "       pmove   %0@,%/tt1\n"
 418                         "       .chip   68k"
 419                         : : "a" (&tt1_val));
 420         } else {
 421                 asm volatile ("\n"
 422                         "       .chip   68040\n"
 423                         "       movec   %0,%%itt1\n"
 424                         "       movec   %0,%%dtt1\n"
 425                         "       .chip   68k"
 426                         :
 427                         : "d" (0xfe00a040));    /* Translate 0xfexxxxxx, enable,
 428                                                  * supervisor only, non-cacheable/
 429                                                  * serialized, writable */
 430
 431         }
 432
 433         /* Fetch tos version at Physical 2 */
 434         /*
 435          * We my not be able to access this address if the kernel is
 436          * loaded to st ram, since the first page is unmapped.  On the
 437          * Medusa this is always the case and there is nothing we can do
 438          * about this, so we just assume the smaller offset.  For the TT
 439          * we use the fact that in head.S we have set up a mapping
 440          * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
 441          * in the last 16MB of the address space.
 442          */
 443         tos_version = (MACH_IS_MEDUSA) ?
 444                         0xfff : *(unsigned short *)0xff000002;
 445         atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
 446 }
 447
 448 #ifdef CONFIG_HEARTBEAT
 449 static void atari_heartbeat(int on)
 450 {
 451         unsigned char tmp;
 452         unsigned long flags;
 453
 454         if (atari_dont_touch_floppy_select)
 455                 return;
 456
 457         local_irq_save(flags);
 458         sound_ym.rd_data_reg_sel = 14;  /* Select PSG Port A */
 459         tmp = sound_ym.rd_data_reg_sel;
 460         sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
 461         local_irq_restore(flags);
 462 }
 463 #endif
 464
 465 /* ++roman:
 466  *
 467  * This function does a reset on machines that lack the ability to
 468  * assert the processor's _RESET signal somehow via hardware. It is
 469  * based on the fact that you can find the initial SP and PC values
 470  * after a reset at physical addresses 0 and 4. This works pretty well
 471  * for Atari machines, since the lowest 8 bytes of physical memory are
 472  * really ROM (mapped by hardware). For other 680x0 machines: don't
 473  * know if it works...
 474  *
 475  * To get the values at addresses 0 and 4, the MMU better is turned
 476  * off first. After that, we have to jump into physical address space
 477  * (the PC before the pmove statement points to the virtual address of
 478  * the code). Getting that physical address is not hard, but the code
 479  * becomes a bit complex since I've tried to ensure that the jump
 480  * statement after the pmove is in the cache already (otherwise the
 481  * processor can't fetch it!). For that, the code first jumps to the
 482  * jump statement with the (virtual) address of the pmove section in
 483  * an address register . The jump statement is surely in the cache
 484  * now. After that, that physical address of the reset code is loaded
 485  * into the same address register, pmove is done and the same jump
 486  * statements goes to the reset code. Since there are not many
 487  * statements between the two jumps, I hope it stays in the cache.
 488  *
 489  * The C code makes heavy use of the GCC features that you can get the
 490  * address of a C label. No hope to compile this with another compiler
 491  * than GCC!
 492  */
 493
 494 /* ++andreas: no need for complicated code, just depend on prefetch */
 495
 496 static void atari_reset(void)
 497 {
 498         long tc_val = 0;
 499         long reset_addr;
 500
 501         /*
 502          * On the Medusa, phys. 0x4 may contain garbage because it's no
 503          * ROM.  See above for explanation why we cannot use PTOV(4).
 504          */
 505         reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
 506                      *(unsigned long *) 0xff000004;
 507
 508         /* reset ACIA for switch off OverScan, if it's active */
 509         if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
 510                 acia.key_ctrl = ACIA_RESET;
 511         if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
 512                 acia.mid_ctrl = ACIA_RESET;
 513
 514         /* processor independent: turn off interrupts and reset the VBR;
 515          * the caches must be left enabled, else prefetching the final jump
 516          * instruction doesn't work.
 517          */
 518         local_irq_disable();
 519         asm volatile ("movec    %0,%%vbr"
 520                         : : "d" (0));
 521
 522         if (CPU_IS_040_OR_060) {
 523                 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 524                 if (CPU_IS_060) {
 525                         /* 68060: clear PCR to turn off superscalar operation */
 526                         asm volatile ("\n"
 527                                 "       .chip 68060\n"
 528                                 "       movec %0,%%pcr\n"
 529                                 "       .chip 68k"
 530                                 : : "d" (0));
 531                 }
 532
 533                 asm volatile ("\n"
 534                         "       move.l  %0,%%d0\n"
 535                         "       and.l   #0xff000000,%%d0\n"
 536                         "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 537                         "       .chip   68040\n"
 538                         "       movec   %%d0,%%itt0\n"
 539                         "       movec   %%d0,%%dtt0\n"
 540                         "       .chip   68k\n"
 541                         "       jmp     %0@"
 542                         : : "a" (jmp_addr040)
 543                         : "d0");
 544         jmp_addr_label040:
 545                 asm volatile ("\n"
 546                         "       moveq   #0,%%d0\n"
 547                         "       nop\n"
 548                         "       .chip   68040\n"
 549                         "       cinva   %%bc\n"
 550                         "       nop\n"
 551                         "       pflusha\n"
 552                         "       nop\n"
 553                         "       movec   %%d0,%%tc\n"
 554                         "       nop\n"
 555                         /* the following setup of transparent translations is needed on the
 556                          * Afterburner040 to successfully reboot. Other machines shouldn't
 557                          * care about a different tt regs setup, they also didn't care in
 558                          * the past that the regs weren't turned off. */
 559                         "       move.l  #0xffc000,%%d0\n" /* whole insn space cacheable */
 560                         "       movec   %%d0,%%itt0\n"
 561                         "       movec   %%d0,%%itt1\n"
 562                         "       or.w    #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
 563                         "       movec   %%d0,%%dtt0\n"
 564                         "       movec   %%d0,%%dtt1\n"
 565                         "       .chip   68k\n"
 566                         "       jmp     %0@"
 567                         : /* no outputs */
 568                         : "a" (reset_addr)
 569                         : "d0");
 570         } else
 571                 asm volatile ("\n"
 572                         "       pmove   %0@,%%tc\n"
 573                         "       jmp     %1@"
 574                         : /* no outputs */
 575                         : "a" (&tc_val), "a" (reset_addr));
 576 }
 577
 578
 579 static void atari_get_model(char *model)
 580 {
 581         strcpy(model, "Atari ");
 582         switch (atari_mch_cookie >> 16) {
 583         case ATARI_MCH_ST:
 584                 if (ATARIHW_PRESENT(MSTE_CLK))
 585                         strcat(model, "Mega ST");
 586                 else
 587                         strcat(model, "ST");
 588                 break;
 589         case ATARI_MCH_STE:
 590                 if (MACH_IS_MSTE)
 591                         strcat(model, "Mega STE");
 592                 else
 593                         strcat(model, "STE");
 594                 break;
 595         case ATARI_MCH_TT:
 596                 if (MACH_IS_MEDUSA)
 597                         /* Medusa has TT _MCH cookie */
 598                         strcat(model, "Medusa");
 599                 else
 600                         strcat(model, "TT");
 601                 break;
 602         case ATARI_MCH_FALCON:
 603                 strcat(model, "Falcon");
 604                 if (MACH_IS_AB40)
 605                         strcat(model, " (with Afterburner040)");
 606                 break;
 607         default:
 608                 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
 609                         atari_mch_cookie);
 610                 break;
 611         }
 612 }
 613
 614
 615 static void atari_get_hardware_list(struct seq_file *m)
 616 {
 617         int i;
 618
 619         for (i = 0; i < m68k_num_memory; i++)
 620                 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
 621                                 m68k_memory[i].size >> 20, m68k_memory[i].addr,
 622                                 (m68k_memory[i].addr & 0xff000000 ?
 623                                  "alternate RAM" : "ST-RAM"));
 624
 625 #define ATARIHW_ANNOUNCE(name, str)                     \
 626         if (ATARIHW_PRESENT(name))                      \
 627                 seq_printf(m, "\t%s\n", str)
 628
 629         seq_printf(m, "Detected hardware:\n");
 630         ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
 631         ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
 632         ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
 633         ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
 634         ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
 635         ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
 636         ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
 637         ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
 638         ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
 639         ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
 640         ATARIHW_ANNOUNCE(IDE, "IDE Interface");
 641         ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
 642         ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
 643         ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
 644         ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
 645         ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
 646         ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
 647         ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
 648         ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
 649         ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
 650         ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
 651         ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
 652         ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
 653         ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
 654         ATARIHW_ANNOUNCE(SCU, "System Control Unit");
 655         ATARIHW_ANNOUNCE(BLITTER, "Blitter");
 656         ATARIHW_ANNOUNCE(VME, "VME Bus");
 657         ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
 658 }