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/platform_device.h>
  35 #include <linux/usb/isp116x.h>
  36 #include <linux/vt_kern.h>
  37 #include <linux/module.h>
  38
  39 #include <asm/bootinfo.h>
  40 #include <asm/setup.h>
  41 #include <asm/atarihw.h>
  42 #include <asm/atariints.h>
  43 #include <asm/atari_stram.h>
  44 #include <asm/machdep.h>
  45 #include <asm/hwtest.h>
  46 #include <asm/io.h>
  47
  48 u_long atari_mch_cookie;
  49 EXPORT_SYMBOL(atari_mch_cookie);
  50
  51 u_long atari_mch_type;
  52 EXPORT_SYMBOL(atari_mch_type);
  53
  54 struct atari_hw_present atari_hw_present;
  55 EXPORT_SYMBOL(atari_hw_present);
  56
  57 u_long atari_switches;
  58 EXPORT_SYMBOL(atari_switches);
  59
  60 int atari_dont_touch_floppy_select;
  61 EXPORT_SYMBOL(atari_dont_touch_floppy_select);
  62
  63 int atari_rtc_year_offset;
  64
  65 /* local function prototypes */
  66 static void atari_reset(void);
  67 static void atari_get_model(char *model);
  68 static void atari_get_hardware_list(struct seq_file *m);
  69
  70 /* atari specific irq functions */
  71 extern void atari_init_IRQ (void);
  72 extern void atari_mksound(unsigned int count, unsigned int ticks);
  73 #ifdef CONFIG_HEARTBEAT
  74 static void atari_heartbeat(int on);
  75 #endif
  76
  77 /* atari specific timer functions (in time.c) */
  78 extern void atari_sched_init(irq_handler_t);
  79 extern u32 atari_gettimeoffset(void);
  80 extern int atari_mste_hwclk (int, struct rtc_time *);
  81 extern int atari_tt_hwclk (int, struct rtc_time *);
  82 extern int atari_mste_set_clock_mmss (unsigned long);
  83 extern int atari_tt_set_clock_mmss (unsigned long);
  84
  85
  86 /* ++roman: This is a more elaborate test for an SCC chip, since the plain
  87  * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
  88  * board in the Medusa is possible. Also, the addresses where the ST_ESCC
  89  * resides generate DTACK without the chip, too.
  90  * The method is to write values into the interrupt vector register, that
  91  * should be readable without trouble (from channel A!).
  92  */
  93
  94 static int __init scc_test(volatile char *ctla)
  95 {
  96         if (!hwreg_present(ctla))
  97                 return 0;
  98         MFPDELAY();
  99
 100         *ctla = 2;
 101         MFPDELAY();
 102         *ctla = 0x40;
 103         MFPDELAY();
 104
 105         *ctla = 2;
 106         MFPDELAY();
 107         if (*ctla != 0x40)
 108                 return 0;
 109         MFPDELAY();
 110
 111         *ctla = 2;
 112         MFPDELAY();
 113         *ctla = 0x60;
 114         MFPDELAY();
 115
 116         *ctla = 2;
 117         MFPDELAY();
 118         if (*ctla != 0x60)
 119                 return 0;
 120
 121         return 1;
 122 }
 123
 124
 125     /*
 126      *  Parse an Atari-specific record in the bootinfo
 127      */
 128
 129 int __init atari_parse_bootinfo(const struct bi_record *record)
 130 {
 131         int unknown = 0;
 132         const u_long *data = record->data;
 133
 134         switch (record->tag) {
 135         case BI_ATARI_MCH_COOKIE:
 136                 atari_mch_cookie = *data;
 137                 break;
 138         case BI_ATARI_MCH_TYPE:
 139                 atari_mch_type = *data;
 140                 break;
 141         default:
 142                 unknown = 1;
 143                 break;
 144         }
 145         return unknown;
 146 }
 147
 148
 149 /* Parse the Atari-specific switches= option. */
 150 static int __init atari_switches_setup(char *str)
 151 {
 152         char switches[strlen(str) + 1];
 153         char *p;
 154         int ovsc_shift;
 155         char *args = switches;
 156
 157         if (!MACH_IS_ATARI)
 158                 return 0;
 159
 160         /* copy string to local array, strsep works destructively... */
 161         strcpy(switches, str);
 162         atari_switches = 0;
 163
 164         /* parse the options */
 165         while ((p = strsep(&args, ",")) != NULL) {
 166                 if (!*p)
 167                         continue;
 168                 ovsc_shift = 0;
 169                 if (strncmp(p, "ov_", 3) == 0) {
 170                         p += 3;
 171                         ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
 172                 }
 173
 174                 if (strcmp(p, "ikbd") == 0) {
 175                         /* RTS line of IKBD ACIA */
 176                         atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
 177                 } else if (strcmp(p, "midi") == 0) {
 178                         /* RTS line of MIDI ACIA */
 179                         atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
 180                 } else if (strcmp(p, "snd6") == 0) {
 181                         atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
 182                 } else if (strcmp(p, "snd7") == 0) {
 183                         atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
 184                 }
 185         }
 186         return 0;
 187 }
 188
 189 early_param("switches", atari_switches_setup);
 190
 191
 192     /*
 193      *  Setup the Atari configuration info
 194      */
 195
 196 void __init config_atari(void)
 197 {
 198         unsigned short tos_version;
 199
 200         memset(&atari_hw_present, 0, sizeof(atari_hw_present));
 201
 202         /* Change size of I/O space from 64KB to 4GB. */
 203         ioport_resource.end  = 0xFFFFFFFF;
 204
 205         mach_sched_init      = atari_sched_init;
 206         mach_init_IRQ        = atari_init_IRQ;
 207         mach_get_model   = atari_get_model;
 208         mach_get_hardware_list = atari_get_hardware_list;
 209         arch_gettimeoffset   = atari_gettimeoffset;
 210         mach_reset           = atari_reset;
 211         mach_max_dma_address = 0xffffff;
 212 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 213         mach_beep          = atari_mksound;
 214 #endif
 215 #ifdef CONFIG_HEARTBEAT
 216         mach_heartbeat = atari_heartbeat;
 217 #endif
 218
 219         /* Set switches as requested by the user */
 220         if (atari_switches & ATARI_SWITCH_IKBD)
 221                 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
 222         if (atari_switches & ATARI_SWITCH_MIDI)
 223                 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
 224         if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
 225                 sound_ym.rd_data_reg_sel = 14;
 226                 sound_ym.wd_data = sound_ym.rd_data_reg_sel |
 227                                    ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
 228                                    ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
 229         }
 230
 231         /* ++bjoern:
 232          * Determine hardware present
 233          */
 234
 235         printk("Atari hardware found: ");
 236         if (MACH_IS_MEDUSA) {
 237                 /* There's no Atari video hardware on the Medusa, but all the
 238                  * addresses below generate a DTACK so no bus error occurs! */
 239         } else if (hwreg_present(f030_xreg)) {
 240                 ATARIHW_SET(VIDEL_SHIFTER);
 241                 printk("VIDEL ");
 242                 /* This is a temporary hack: If there is Falcon video
 243                  * hardware, we assume that the ST-DMA serves SCSI instead of
 244                  * ACSI. In the future, there should be a better method for
 245                  * this...
 246                  */
 247                 ATARIHW_SET(ST_SCSI);
 248                 printk("STDMA-SCSI ");
 249         } else if (hwreg_present(tt_palette)) {
 250                 ATARIHW_SET(TT_SHIFTER);
 251                 printk("TT_SHIFTER ");
 252         } else if (hwreg_present(&shifter.bas_hi)) {
 253                 if (hwreg_present(&shifter.bas_lo) &&
 254                     (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) {
 255                         ATARIHW_SET(EXTD_SHIFTER);
 256                         printk("EXTD_SHIFTER ");
 257                 } else {
 258                         ATARIHW_SET(STND_SHIFTER);
 259                         printk("STND_SHIFTER ");
 260                 }
 261         }
 262         if (hwreg_present(&st_mfp.par_dt_reg)) {
 263                 ATARIHW_SET(ST_MFP);
 264                 printk("ST_MFP ");
 265         }
 266         if (hwreg_present(&tt_mfp.par_dt_reg)) {
 267                 ATARIHW_SET(TT_MFP);
 268                 printk("TT_MFP ");
 269         }
 270         if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 271                 ATARIHW_SET(SCSI_DMA);
 272                 printk("TT_SCSI_DMA ");
 273         }
 274         /*
 275          * The ST-DMA address registers aren't readable
 276          * on all Medusas, so the test below may fail
 277          */
 278         if (MACH_IS_MEDUSA ||
 279             (hwreg_present(&st_dma.dma_vhi) &&
 280              (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
 281              st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
 282              (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
 283              st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
 284                 ATARIHW_SET(EXTD_DMA);
 285                 printk("EXTD_DMA ");
 286         }
 287         if (hwreg_present(&tt_scsi.scsi_data)) {
 288                 ATARIHW_SET(TT_SCSI);
 289                 printk("TT_SCSI ");
 290         }
 291         if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 292                 ATARIHW_SET(YM_2149);
 293                 printk("YM2149 ");
 294         }
 295         if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 296                 ATARIHW_SET(PCM_8BIT);
 297                 printk("PCM ");
 298         }
 299         if (hwreg_present(&falcon_codec.unused5)) {
 300                 ATARIHW_SET(CODEC);
 301                 printk("CODEC ");
 302         }
 303         if (hwreg_present(&dsp56k_host_interface.icr)) {
 304                 ATARIHW_SET(DSP56K);
 305                 printk("DSP56K ");
 306         }
 307         if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
 308 #if 0
 309             /* This test sucks! Who knows some better? */
 310             (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
 311             (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
 312 #else
 313             !MACH_IS_MEDUSA
 314 #endif
 315             ) {
 316                 ATARIHW_SET(SCC_DMA);
 317                 printk("SCC_DMA ");
 318         }
 319         if (scc_test(&atari_scc.cha_a_ctrl)) {
 320                 ATARIHW_SET(SCC);
 321                 printk("SCC ");
 322         }
 323         if (scc_test(&st_escc.cha_b_ctrl)) {
 324                 ATARIHW_SET(ST_ESCC);
 325                 printk("ST_ESCC ");
 326         }
 327         if (hwreg_present(&tt_scu.sys_mask)) {
 328                 ATARIHW_SET(SCU);
 329                 /* Assume a VME bus if there's a SCU */
 330                 ATARIHW_SET(VME);
 331                 printk("VME SCU ");
 332         }
 333         if (hwreg_present((void *)(0xffff9210))) {
 334                 ATARIHW_SET(ANALOG_JOY);
 335                 printk("ANALOG_JOY ");
 336         }
 337         if (hwreg_present(blitter.halftone)) {
 338                 ATARIHW_SET(BLITTER);
 339                 printk("BLITTER ");
 340         }
 341         if (hwreg_present((void *)0xfff00039)) {
 342                 ATARIHW_SET(IDE);
 343                 printk("IDE ");
 344         }
 345 #if 1 /* This maybe wrong */
 346         if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
 347             hwreg_present(&tt_microwire.mask) &&
 348             (tt_microwire.mask = 0x7ff,
 349              udelay(1),
 350              tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
 351              udelay(1),
 352              tt_microwire.data != 0)) {
 353                 ATARIHW_SET(MICROWIRE);
 354                 while (tt_microwire.mask != 0x7ff)
 355                         ;
 356                 printk("MICROWIRE ");
 357         }
 358 #endif
 359         if (hwreg_present(&tt_rtc.regsel)) {
 360                 ATARIHW_SET(TT_CLK);
 361                 printk("TT_CLK ");
 362                 mach_hwclk = atari_tt_hwclk;
 363                 mach_set_clock_mmss = atari_tt_set_clock_mmss;
 364         }
 365         if (hwreg_present(&mste_rtc.sec_ones)) {
 366                 ATARIHW_SET(MSTE_CLK);
 367                 printk("MSTE_CLK ");
 368                 mach_hwclk = atari_mste_hwclk;
 369                 mach_set_clock_mmss = atari_mste_set_clock_mmss;
 370         }
 371         if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
 372             hwreg_write(&dma_wd.fdc_speed, 0)) {
 373                 ATARIHW_SET(FDCSPEED);
 374                 printk("FDC_SPEED ");
 375         }
 376         if (!ATARIHW_PRESENT(ST_SCSI)) {
 377                 ATARIHW_SET(ACSI);
 378                 printk("ACSI ");
 379         }
 380         printk("\n");
 381
 382         if (CPU_IS_040_OR_060)
 383                 /* Now it seems to be safe to turn of the tt0 transparent
 384                  * translation (the one that must not be turned off in
 385                  * head.S...)
 386                  */
 387                 asm volatile ("\n"
 388                         "       moveq   #0,%%d0\n"
 389                         "       .chip   68040\n"
 390                         "       movec   %%d0,%%itt0\n"
 391                         "       movec   %%d0,%%dtt0\n"
 392                         "       .chip   68k"
 393                         : /* no outputs */
 394                         : /* no inputs */
 395                         : "d0");
 396
 397         /* allocator for memory that must reside in st-ram */
 398         atari_stram_init();
 399
 400         /* Set up a mapping for the VMEbus address region:
 401          *
 402          * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
 403          * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
 404          * 0xfe000000 virt., because this can be done with a single
 405          * transparent translation. On the 68040, lots of often unused
 406          * page tables would be needed otherwise. On a MegaSTE or similar,
 407          * the highest byte is stripped off by hardware due to the 24 bit
 408          * design of the bus.
 409          */
 410
 411         if (CPU_IS_020_OR_030) {
 412                 unsigned long tt1_val;
 413                 tt1_val = 0xfe008543;   /* Translate 0xfexxxxxx, enable, cache
 414                                          * inhibit, read and write, FDC mask = 3,
 415                                          * FDC val = 4 -> Supervisor only */
 416                 asm volatile ("\n"
 417                         "       .chip   68030\n"
 418                         "       pmove   %0,%/tt1\n"
 419                         "       .chip   68k"
 420                         : : "m" (tt1_val));
 421         } else {
 422                 asm volatile ("\n"
 423                         "       .chip   68040\n"
 424                         "       movec   %0,%%itt1\n"
 425                         "       movec   %0,%%dtt1\n"
 426                         "       .chip   68k"
 427                         :
 428                         : "d" (0xfe00a040));    /* Translate 0xfexxxxxx, enable,
 429                                                  * supervisor only, non-cacheable/
 430                                                  * serialized, writable */
 431
 432         }
 433
 434         /* Fetch tos version at Physical 2 */
 435         /*
 436          * We my not be able to access this address if the kernel is
 437          * loaded to st ram, since the first page is unmapped.  On the
 438          * Medusa this is always the case and there is nothing we can do
 439          * about this, so we just assume the smaller offset.  For the TT
 440          * we use the fact that in head.S we have set up a mapping
 441          * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
 442          * in the last 16MB of the address space.
 443          */
 444         tos_version = (MACH_IS_MEDUSA) ?
 445                         0xfff : *(unsigned short *)0xff000002;
 446         atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
 447 }
 448
 449 #ifdef CONFIG_HEARTBEAT
 450 static void atari_heartbeat(int on)
 451 {
 452         unsigned char tmp;
 453         unsigned long flags;
 454
 455         if (atari_dont_touch_floppy_select)
 456                 return;
 457
 458         local_irq_save(flags);
 459         sound_ym.rd_data_reg_sel = 14;  /* Select PSG Port A */
 460         tmp = sound_ym.rd_data_reg_sel;
 461         sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
 462         local_irq_restore(flags);
 463 }
 464 #endif
 465
 466 /* ++roman:
 467  *
 468  * This function does a reset on machines that lack the ability to
 469  * assert the processor's _RESET signal somehow via hardware. It is
 470  * based on the fact that you can find the initial SP and PC values
 471  * after a reset at physical addresses 0 and 4. This works pretty well
 472  * for Atari machines, since the lowest 8 bytes of physical memory are
 473  * really ROM (mapped by hardware). For other 680x0 machines: don't
 474  * know if it works...
 475  *
 476  * To get the values at addresses 0 and 4, the MMU better is turned
 477  * off first. After that, we have to jump into physical address space
 478  * (the PC before the pmove statement points to the virtual address of
 479  * the code). Getting that physical address is not hard, but the code
 480  * becomes a bit complex since I've tried to ensure that the jump
 481  * statement after the pmove is in the cache already (otherwise the
 482  * processor can't fetch it!). For that, the code first jumps to the
 483  * jump statement with the (virtual) address of the pmove section in
 484  * an address register . The jump statement is surely in the cache
 485  * now. After that, that physical address of the reset code is loaded
 486  * into the same address register, pmove is done and the same jump
 487  * statements goes to the reset code. Since there are not many
 488  * statements between the two jumps, I hope it stays in the cache.
 489  *
 490  * The C code makes heavy use of the GCC features that you can get the
 491  * address of a C label. No hope to compile this with another compiler
 492  * than GCC!
 493  */
 494
 495 /* ++andreas: no need for complicated code, just depend on prefetch */
 496
 497 static void atari_reset(void)
 498 {
 499         long tc_val = 0;
 500         long reset_addr;
 501
 502         /*
 503          * On the Medusa, phys. 0x4 may contain garbage because it's no
 504          * ROM.  See above for explanation why we cannot use PTOV(4).
 505          */
 506         reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
 507                      *(unsigned long *) 0xff000004;
 508
 509         /* reset ACIA for switch off OverScan, if it's active */
 510         if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
 511                 acia.key_ctrl = ACIA_RESET;
 512         if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
 513                 acia.mid_ctrl = ACIA_RESET;
 514
 515         /* processor independent: turn off interrupts and reset the VBR;
 516          * the caches must be left enabled, else prefetching the final jump
 517          * instruction doesn't work.
 518          */
 519         local_irq_disable();
 520         asm volatile ("movec    %0,%%vbr"
 521                         : : "d" (0));
 522
 523         if (CPU_IS_040_OR_060) {
 524                 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 525                 if (CPU_IS_060) {
 526                         /* 68060: clear PCR to turn off superscalar operation */
 527                         asm volatile ("\n"
 528                                 "       .chip 68060\n"
 529                                 "       movec %0,%%pcr\n"
 530                                 "       .chip 68k"
 531                                 : : "d" (0));
 532                 }
 533
 534                 asm volatile ("\n"
 535                         "       move.l  %0,%%d0\n"
 536                         "       and.l   #0xff000000,%%d0\n"
 537                         "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 538                         "       .chip   68040\n"
 539                         "       movec   %%d0,%%itt0\n"
 540                         "       movec   %%d0,%%dtt0\n"
 541                         "       .chip   68k\n"
 542                         "       jmp     %0@"
 543                         : : "a" (jmp_addr040)
 544                         : "d0");
 545         jmp_addr_label040:
 546                 asm volatile ("\n"
 547                         "       moveq   #0,%%d0\n"
 548                         "       nop\n"
 549                         "       .chip   68040\n"
 550                         "       cinva   %%bc\n"
 551                         "       nop\n"
 552                         "       pflusha\n"
 553                         "       nop\n"
 554                         "       movec   %%d0,%%tc\n"
 555                         "       nop\n"
 556                         /* the following setup of transparent translations is needed on the
 557                          * Afterburner040 to successfully reboot. Other machines shouldn't
 558                          * care about a different tt regs setup, they also didn't care in
 559                          * the past that the regs weren't turned off. */
 560                         "       move.l  #0xffc000,%%d0\n" /* whole insn space cacheable */
 561                         "       movec   %%d0,%%itt0\n"
 562                         "       movec   %%d0,%%itt1\n"
 563                         "       or.w    #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
 564                         "       movec   %%d0,%%dtt0\n"
 565                         "       movec   %%d0,%%dtt1\n"
 566                         "       .chip   68k\n"
 567                         "       jmp     %0@"
 568                         : /* no outputs */
 569                         : "a" (reset_addr)
 570                         : "d0");
 571         } else
 572                 asm volatile ("\n"
 573                         "       pmove   %0,%%tc\n"
 574                         "       jmp     %1@"
 575                         : /* no outputs */
 576                         : "m" (tc_val), "a" (reset_addr));
 577 }
 578
 579
 580 static void atari_get_model(char *model)
 581 {
 582         strcpy(model, "Atari ");
 583         switch (atari_mch_cookie >> 16) {
 584         case ATARI_MCH_ST:
 585                 if (ATARIHW_PRESENT(MSTE_CLK))
 586                         strcat(model, "Mega ST");
 587                 else
 588                         strcat(model, "ST");
 589                 break;
 590         case ATARI_MCH_STE:
 591                 if (MACH_IS_MSTE)
 592                         strcat(model, "Mega STE");
 593                 else
 594                         strcat(model, "STE");
 595                 break;
 596         case ATARI_MCH_TT:
 597                 if (MACH_IS_MEDUSA)
 598                         /* Medusa has TT _MCH cookie */
 599                         strcat(model, "Medusa");
 600                 else
 601                         strcat(model, "TT");
 602                 break;
 603         case ATARI_MCH_FALCON:
 604                 strcat(model, "Falcon");
 605                 if (MACH_IS_AB40)
 606                         strcat(model, " (with Afterburner040)");
 607                 break;
 608         default:
 609                 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
 610                         atari_mch_cookie);
 611                 break;
 612         }
 613 }
 614
 615
 616 static void atari_get_hardware_list(struct seq_file *m)
 617 {
 618         int i;
 619
 620         for (i = 0; i < m68k_num_memory; i++)
 621                 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
 622                                 m68k_memory[i].size >> 20, m68k_memory[i].addr,
 623                                 (m68k_memory[i].addr & 0xff000000 ?
 624                                  "alternate RAM" : "ST-RAM"));
 625
 626 #define ATARIHW_ANNOUNCE(name, str)                     \
 627         if (ATARIHW_PRESENT(name))                      \
 628                 seq_printf(m, "\t%s\n", str)
 629
 630         seq_printf(m, "Detected hardware:\n");
 631         ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
 632         ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
 633         ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
 634         ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
 635         ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
 636         ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
 637         ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
 638         ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
 639         ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
 640         ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
 641         ATARIHW_ANNOUNCE(IDE, "IDE Interface");
 642         ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
 643         ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
 644         ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
 645         ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
 646         ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
 647         ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
 648         ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
 649         ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
 650         ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
 651         ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
 652         ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
 653         ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
 654         ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
 655         ATARIHW_ANNOUNCE(SCU, "System Control Unit");
 656         ATARIHW_ANNOUNCE(BLITTER, "Blitter");
 657         ATARIHW_ANNOUNCE(VME, "VME Bus");
 658         ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
 659 }
 660
 661 /*
 662  * MSch: initial platform device support for Atari,
 663  * required for EtherNAT/EtherNEC/NetUSBee drivers
 664  */
 665
 666 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
 667 static void isp1160_delay(struct device *dev, int delay)
 668 {
 669         ndelay(delay);
 670 }
 671 #endif
 672
 673 #ifdef CONFIG_ATARI_ETHERNAT
 674 /*
 675  * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
 676  */
 677
 678 #define ATARI_ETHERNAT_IRQ              140
 679
 680 static struct resource smc91x_resources[] = {
 681         [0] = {
 682                 .name   = "smc91x-regs",
 683                 .start  = ATARI_ETHERNAT_PHYS_ADDR,
 684                 .end    = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
 685                 .flags  = IORESOURCE_MEM,
 686         },
 687         [1] = {
 688                 .name   = "smc91x-irq",
 689                 .start  = ATARI_ETHERNAT_IRQ,
 690                 .end    = ATARI_ETHERNAT_IRQ,
 691                 .flags  = IORESOURCE_IRQ,
 692         },
 693 };
 694
 695 static struct platform_device smc91x_device = {
 696         .name           = "smc91x",
 697         .id             = -1,
 698         .num_resources  = ARRAY_SIZE(smc91x_resources),
 699         .resource       = smc91x_resources,
 700 };
 701
 702 /*
 703  * ISP 1160 - using the isp116x-hcd module
 704  */
 705
 706 #define ATARI_USB_PHYS_ADDR     0x80000012
 707 #define ATARI_USB_IRQ           139
 708
 709 static struct resource isp1160_resources[] = {
 710         [0] = {
 711                 .name   = "isp1160-data",
 712                 .start  = ATARI_USB_PHYS_ADDR,
 713                 .end    = ATARI_USB_PHYS_ADDR + 0x1,
 714                 .flags  = IORESOURCE_MEM,
 715         },
 716         [1] = {
 717                 .name   = "isp1160-regs",
 718                 .start  = ATARI_USB_PHYS_ADDR + 0x4,
 719                 .end    = ATARI_USB_PHYS_ADDR + 0x5,
 720                 .flags  = IORESOURCE_MEM,
 721         },
 722         [2] = {
 723                 .name   = "isp1160-irq",
 724                 .start  = ATARI_USB_IRQ,
 725                 .end    = ATARI_USB_IRQ,
 726                 .flags  = IORESOURCE_IRQ,
 727         },
 728 };
 729
 730 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 731 static struct isp116x_platform_data isp1160_platform_data = {
 732         /* Enable internal resistors on downstream ports */
 733         .sel15Kres              = 1,
 734         /* On-chip overcurrent protection */
 735         .oc_enable              = 1,
 736         /* INT output polarity */
 737         .int_act_high           = 1,
 738         /* INT edge or level triggered */
 739         .int_edge_triggered     = 0,
 740
 741         /* WAKEUP pin connected - NOT SUPPORTED  */
 742         /* .remote_wakeup_connected = 0, */
 743         /* Wakeup by devices on usb bus enabled */
 744         .remote_wakeup_enable   = 0,
 745         .delay                  = isp1160_delay,
 746 };
 747
 748 static struct platform_device isp1160_device = {
 749         .name           = "isp116x-hcd",
 750         .id             = 0,
 751         .num_resources  = ARRAY_SIZE(isp1160_resources),
 752         .resource       = isp1160_resources,
 753         .dev                    = {
 754                 .platform_data  = &isp1160_platform_data,
 755         },
 756 };
 757
 758 static struct platform_device *atari_ethernat_devices[] __initdata = {
 759         &smc91x_device,
 760         &isp1160_device
 761 };
 762 #endif /* CONFIG_ATARI_ETHERNAT */
 763
 764 #ifdef CONFIG_ATARI_ETHERNEC
 765 /*
 766  * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
 767  * handled by ne.c driver
 768  */
 769
 770 #define ATARI_ETHERNEC_PHYS_ADDR        0xfffa0000
 771 #define ATARI_ETHERNEC_BASE             0x300
 772 #define ATARI_ETHERNEC_IRQ              IRQ_MFP_TIMER1
 773
 774 static struct resource rtl8019_resources[] = {
 775         [0] = {
 776                 .name   = "rtl8019-regs",
 777                 .start  = ATARI_ETHERNEC_BASE,
 778                 .end    = ATARI_ETHERNEC_BASE + 0x20 - 1,
 779                 .flags  = IORESOURCE_IO,
 780         },
 781         [1] = {
 782                 .name   = "rtl8019-irq",
 783                 .start  = ATARI_ETHERNEC_IRQ,
 784                 .end    = ATARI_ETHERNEC_IRQ,
 785                 .flags  = IORESOURCE_IRQ,
 786         },
 787 };
 788
 789 static struct platform_device rtl8019_device = {
 790         .name           = "ne",
 791         .id             = -1,
 792         .num_resources  = ARRAY_SIZE(rtl8019_resources),
 793         .resource       = rtl8019_resources,
 794 };
 795
 796 /*
 797  * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
 798  */
 799
 800 #define ATARI_NETUSBEE_PHYS_ADDR        0xfffa8000
 801 #define ATARI_NETUSBEE_BASE             0x340
 802 #define ATARI_NETUSBEE_IRQ              IRQ_MFP_TIMER2
 803
 804 static struct resource netusbee_resources[] = {
 805         [0] = {
 806                 .name   = "isp1160-data",
 807                 .start  = ATARI_NETUSBEE_BASE,
 808                 .end    = ATARI_NETUSBEE_BASE + 0x1,
 809                 .flags  = IORESOURCE_MEM,
 810         },
 811         [1] = {
 812                 .name   = "isp1160-regs",
 813                 .start  = ATARI_NETUSBEE_BASE + 0x20,
 814                 .end    = ATARI_NETUSBEE_BASE + 0x21,
 815                 .flags  = IORESOURCE_MEM,
 816         },
 817         [2] = {
 818                 .name   = "isp1160-irq",
 819                 .start  = ATARI_NETUSBEE_IRQ,
 820                 .end    = ATARI_NETUSBEE_IRQ,
 821                 .flags  = IORESOURCE_IRQ,
 822         },
 823 };
 824
 825 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 826 static struct isp116x_platform_data netusbee_platform_data = {
 827         /* Enable internal resistors on downstream ports */
 828         .sel15Kres              = 1,
 829         /* On-chip overcurrent protection */
 830         .oc_enable              = 1,
 831         /* INT output polarity */
 832         .int_act_high           = 1,
 833         /* INT edge or level triggered */
 834         .int_edge_triggered     = 0,
 835
 836         /* WAKEUP pin connected - NOT SUPPORTED  */
 837         /* .remote_wakeup_connected = 0, */
 838         /* Wakeup by devices on usb bus enabled */
 839         .remote_wakeup_enable   = 0,
 840         .delay                  = isp1160_delay,
 841 };
 842
 843 static struct platform_device netusbee_device = {
 844         .name           = "isp116x-hcd",
 845         .id             = 1,
 846         .num_resources  = ARRAY_SIZE(netusbee_resources),
 847         .resource       = netusbee_resources,
 848         .dev                    = {
 849                 .platform_data  = &netusbee_platform_data,
 850         },
 851 };
 852
 853 static struct platform_device *atari_netusbee_devices[] __initdata = {
 854         &rtl8019_device,
 855         &netusbee_device
 856 };
 857 #endif /* CONFIG_ATARI_ETHERNEC */
 858
 859 int __init atari_platform_init(void)
 860 {
 861         int rv = 0;
 862
 863         if (!MACH_IS_ATARI)
 864                 return -ENODEV;
 865
 866 #ifdef CONFIG_ATARI_ETHERNAT
 867         {
 868                 unsigned char *enatc_virt;
 869                 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
 870                 if (hwreg_present(enatc_virt)) {
 871                         rv = platform_add_devices(atari_ethernat_devices,
 872                                                 ARRAY_SIZE(atari_ethernat_devices));
 873                 }
 874                 iounmap(enatc_virt);
 875         }
 876 #endif
 877
 878 #ifdef CONFIG_ATARI_ETHERNEC
 879         {
 880                 int error;
 881                 unsigned char *enec_virt;
 882                 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
 883                 if (hwreg_present(enec_virt)) {
 884                         error = platform_add_devices(atari_netusbee_devices,
 885                                                 ARRAY_SIZE(atari_netusbee_devices));
 886                         if (error && !rv)
 887                                 rv = error;
 888                 }
 889                 iounmap(enec_virt);
 890         }
 891 #endif
 892
 893         return rv;
 894 }
 895
 896 arch_initcall(atari_platform_init);