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/bootinfo-atari.h>
  41 #include <asm/byteorder.h>
  42 #include <asm/setup.h>
  43 #include <asm/atarihw.h>
  44 #include <asm/atariints.h>
  45 #include <asm/atari_stram.h>
  46 #include <asm/machdep.h>
  47 #include <asm/hwtest.h>
  48 #include <asm/io.h>
  49
  50 u_long atari_mch_cookie;
  51 EXPORT_SYMBOL(atari_mch_cookie);
  52
  53 u_long atari_mch_type;
  54 EXPORT_SYMBOL(atari_mch_type);
  55
  56 struct atari_hw_present atari_hw_present;
  57 EXPORT_SYMBOL(atari_hw_present);
  58
  59 u_long atari_switches;
  60 EXPORT_SYMBOL(atari_switches);
  61
  62 int atari_dont_touch_floppy_select;
  63 EXPORT_SYMBOL(atari_dont_touch_floppy_select);
  64
  65 int atari_rtc_year_offset;
  66
  67 /* local function prototypes */
  68 static void atari_reset(void);
  69 static void atari_get_model(char *model);
  70 static void atari_get_hardware_list(struct seq_file *m);
  71
  72 /* atari specific irq functions */
  73 extern void atari_init_IRQ (void);
  74 extern void atari_mksound(unsigned int count, unsigned int ticks);
  75 #ifdef CONFIG_HEARTBEAT
  76 static void atari_heartbeat(int on);
  77 #endif
  78
  79 /* atari specific timer functions (in time.c) */
  80 extern void atari_sched_init(irq_handler_t);
  81 extern u32 atari_gettimeoffset(void);
  82 extern int atari_mste_hwclk (int, struct rtc_time *);
  83 extern int atari_tt_hwclk (int, struct rtc_time *);
  84 extern int atari_mste_set_clock_mmss (unsigned long);
  85 extern int atari_tt_set_clock_mmss (unsigned long);
  86
  87
  88 /* ++roman: This is a more elaborate test for an SCC chip, since the plain
  89  * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
  90  * board in the Medusa is possible. Also, the addresses where the ST_ESCC
  91  * resides generate DTACK without the chip, too.
  92  * The method is to write values into the interrupt vector register, that
  93  * should be readable without trouble (from channel A!).
  94  */
  95
  96 static int __init scc_test(volatile char *ctla)
  97 {
  98         if (!hwreg_present(ctla))
  99                 return 0;
 100         MFPDELAY();
 101
 102         *ctla = 2;
 103         MFPDELAY();
 104         *ctla = 0x40;
 105         MFPDELAY();
 106
 107         *ctla = 2;
 108         MFPDELAY();
 109         if (*ctla != 0x40)
 110                 return 0;
 111         MFPDELAY();
 112
 113         *ctla = 2;
 114         MFPDELAY();
 115         *ctla = 0x60;
 116         MFPDELAY();
 117
 118         *ctla = 2;
 119         MFPDELAY();
 120         if (*ctla != 0x60)
 121                 return 0;
 122
 123         return 1;
 124 }
 125
 126
 127     /*
 128      *  Parse an Atari-specific record in the bootinfo
 129      */
 130
 131 int __init atari_parse_bootinfo(const struct bi_record *record)
 132 {
 133         int unknown = 0;
 134         const void *data = record->data;
 135
 136         switch (be16_to_cpu(record->tag)) {
 137         case BI_ATARI_MCH_COOKIE:
 138                 atari_mch_cookie = be32_to_cpup(data);
 139                 break;
 140         case BI_ATARI_MCH_TYPE:
 141                 atari_mch_type = be32_to_cpup(data);
 142                 break;
 143         default:
 144                 unknown = 1;
 145                 break;
 146         }
 147         return unknown;
 148 }
 149
 150
 151 /* Parse the Atari-specific switches= option. */
 152 static int __init atari_switches_setup(char *str)
 153 {
 154         char switches[strlen(str) + 1];
 155         char *p;
 156         int ovsc_shift;
 157         char *args = switches;
 158
 159         if (!MACH_IS_ATARI)
 160                 return 0;
 161
 162         /* copy string to local array, strsep works destructively... */
 163         strcpy(switches, str);
 164         atari_switches = 0;
 165
 166         /* parse the options */
 167         while ((p = strsep(&args, ",")) != NULL) {
 168                 if (!*p)
 169                         continue;
 170                 ovsc_shift = 0;
 171                 if (strncmp(p, "ov_", 3) == 0) {
 172                         p += 3;
 173                         ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
 174                 }
 175
 176                 if (strcmp(p, "ikbd") == 0) {
 177                         /* RTS line of IKBD ACIA */
 178                         atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
 179                 } else if (strcmp(p, "midi") == 0) {
 180                         /* RTS line of MIDI ACIA */
 181                         atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
 182                 } else if (strcmp(p, "snd6") == 0) {
 183                         atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
 184                 } else if (strcmp(p, "snd7") == 0) {
 185                         atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
 186                 }
 187         }
 188         return 0;
 189 }
 190
 191 early_param("switches", atari_switches_setup);
 192
 193
 194     /*
 195      *  Setup the Atari configuration info
 196      */
 197
 198 void __init config_atari(void)
 199 {
 200         unsigned short tos_version;
 201
 202         memset(&atari_hw_present, 0, sizeof(atari_hw_present));
 203
 204         /* Change size of I/O space from 64KB to 4GB. */
 205         ioport_resource.end  = 0xFFFFFFFF;
 206
 207         mach_sched_init      = atari_sched_init;
 208         mach_init_IRQ        = atari_init_IRQ;
 209         mach_get_model   = atari_get_model;
 210         mach_get_hardware_list = atari_get_hardware_list;
 211         arch_gettimeoffset   = atari_gettimeoffset;
 212         mach_reset           = atari_reset;
 213         mach_max_dma_address = 0xffffff;
 214 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 215         mach_beep          = atari_mksound;
 216 #endif
 217 #ifdef CONFIG_HEARTBEAT
 218         mach_heartbeat = atari_heartbeat;
 219 #endif
 220
 221         /* Set switches as requested by the user */
 222         if (atari_switches & ATARI_SWITCH_IKBD)
 223                 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
 224         if (atari_switches & ATARI_SWITCH_MIDI)
 225                 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
 226         if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
 227                 sound_ym.rd_data_reg_sel = 14;
 228                 sound_ym.wd_data = sound_ym.rd_data_reg_sel |
 229                                    ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
 230                                    ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
 231         }
 232
 233         /* ++bjoern:
 234          * Determine hardware present
 235          */
 236
 237         printk("Atari hardware found: ");
 238         if (MACH_IS_MEDUSA) {
 239                 /* There's no Atari video hardware on the Medusa, but all the
 240                  * addresses below generate a DTACK so no bus error occurs! */
 241         } else if (hwreg_present(f030_xreg)) {
 242                 ATARIHW_SET(VIDEL_SHIFTER);
 243                 printk("VIDEL ");
 244                 /* This is a temporary hack: If there is Falcon video
 245                  * hardware, we assume that the ST-DMA serves SCSI instead of
 246                  * ACSI. In the future, there should be a better method for
 247                  * this...
 248                  */
 249                 ATARIHW_SET(ST_SCSI);
 250                 printk("STDMA-SCSI ");
 251         } else if (hwreg_present(tt_palette)) {
 252                 ATARIHW_SET(TT_SHIFTER);
 253                 printk("TT_SHIFTER ");
 254         } else if (hwreg_present(&shifter.bas_hi)) {
 255                 if (hwreg_present(&shifter.bas_lo) &&
 256                     (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) {
 257                         ATARIHW_SET(EXTD_SHIFTER);
 258                         printk("EXTD_SHIFTER ");
 259                 } else {
 260                         ATARIHW_SET(STND_SHIFTER);
 261                         printk("STND_SHIFTER ");
 262                 }
 263         }
 264         if (hwreg_present(&st_mfp.par_dt_reg)) {
 265                 ATARIHW_SET(ST_MFP);
 266                 printk("ST_MFP ");
 267         }
 268         if (hwreg_present(&tt_mfp.par_dt_reg)) {
 269                 ATARIHW_SET(TT_MFP);
 270                 printk("TT_MFP ");
 271         }
 272         if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 273                 ATARIHW_SET(SCSI_DMA);
 274                 printk("TT_SCSI_DMA ");
 275         }
 276         /*
 277          * The ST-DMA address registers aren't readable
 278          * on all Medusas, so the test below may fail
 279          */
 280         if (MACH_IS_MEDUSA ||
 281             (hwreg_present(&st_dma.dma_vhi) &&
 282              (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
 283              st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
 284              (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
 285              st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
 286                 ATARIHW_SET(EXTD_DMA);
 287                 printk("EXTD_DMA ");
 288         }
 289         if (hwreg_present(&tt_scsi.scsi_data)) {
 290                 ATARIHW_SET(TT_SCSI);
 291                 printk("TT_SCSI ");
 292         }
 293         if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 294                 ATARIHW_SET(YM_2149);
 295                 printk("YM2149 ");
 296         }
 297         if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 298                 ATARIHW_SET(PCM_8BIT);
 299                 printk("PCM ");
 300         }
 301         if (hwreg_present(&falcon_codec.unused5)) {
 302                 ATARIHW_SET(CODEC);
 303                 printk("CODEC ");
 304         }
 305         if (hwreg_present(&dsp56k_host_interface.icr)) {
 306                 ATARIHW_SET(DSP56K);
 307                 printk("DSP56K ");
 308         }
 309         if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
 310 #if 0
 311             /* This test sucks! Who knows some better? */
 312             (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
 313             (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
 314 #else
 315             !MACH_IS_MEDUSA
 316 #endif
 317             ) {
 318                 ATARIHW_SET(SCC_DMA);
 319                 printk("SCC_DMA ");
 320         }
 321         if (scc_test(&atari_scc.cha_a_ctrl)) {
 322                 ATARIHW_SET(SCC);
 323                 printk("SCC ");
 324         }
 325         if (scc_test(&st_escc.cha_b_ctrl)) {
 326                 ATARIHW_SET(ST_ESCC);
 327                 printk("ST_ESCC ");
 328         }
 329         if (hwreg_present(&tt_scu.sys_mask)) {
 330                 ATARIHW_SET(SCU);
 331                 /* Assume a VME bus if there's a SCU */
 332                 ATARIHW_SET(VME);
 333                 printk("VME SCU ");
 334         }
 335         if (hwreg_present((void *)(0xffff9210))) {
 336                 ATARIHW_SET(ANALOG_JOY);
 337                 printk("ANALOG_JOY ");
 338         }
 339         if (hwreg_present(blitter.halftone)) {
 340                 ATARIHW_SET(BLITTER);
 341                 printk("BLITTER ");
 342         }
 343         if (hwreg_present((void *)0xfff00039)) {
 344                 ATARIHW_SET(IDE);
 345                 printk("IDE ");
 346         }
 347 #if 1 /* This maybe wrong */
 348         if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
 349             hwreg_present(&tt_microwire.mask) &&
 350             (tt_microwire.mask = 0x7ff,
 351              udelay(1),
 352              tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
 353              udelay(1),
 354              tt_microwire.data != 0)) {
 355                 ATARIHW_SET(MICROWIRE);
 356                 while (tt_microwire.mask != 0x7ff)
 357                         ;
 358                 printk("MICROWIRE ");
 359         }
 360 #endif
 361         if (hwreg_present(&tt_rtc.regsel)) {
 362                 ATARIHW_SET(TT_CLK);
 363                 printk("TT_CLK ");
 364                 mach_hwclk = atari_tt_hwclk;
 365                 mach_set_clock_mmss = atari_tt_set_clock_mmss;
 366         }
 367         if (hwreg_present(&mste_rtc.sec_ones)) {
 368                 ATARIHW_SET(MSTE_CLK);
 369                 printk("MSTE_CLK ");
 370                 mach_hwclk = atari_mste_hwclk;
 371                 mach_set_clock_mmss = atari_mste_set_clock_mmss;
 372         }
 373         if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
 374             hwreg_write(&dma_wd.fdc_speed, 0)) {
 375                 ATARIHW_SET(FDCSPEED);
 376                 printk("FDC_SPEED ");
 377         }
 378         if (!ATARIHW_PRESENT(ST_SCSI)) {
 379                 ATARIHW_SET(ACSI);
 380                 printk("ACSI ");
 381         }
 382         printk("\n");
 383
 384         if (CPU_IS_040_OR_060)
 385                 /* Now it seems to be safe to turn of the tt0 transparent
 386                  * translation (the one that must not be turned off in
 387                  * head.S...)
 388                  */
 389                 asm volatile ("\n"
 390                         "       moveq   #0,%%d0\n"
 391                         "       .chip   68040\n"
 392                         "       movec   %%d0,%%itt0\n"
 393                         "       movec   %%d0,%%dtt0\n"
 394                         "       .chip   68k"
 395                         : /* no outputs */
 396                         : /* no inputs */
 397                         : "d0");
 398
 399         /* allocator for memory that must reside in st-ram */
 400         atari_stram_init();
 401
 402         /* Set up a mapping for the VMEbus address region:
 403          *
 404          * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
 405          * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
 406          * 0xfe000000 virt., because this can be done with a single
 407          * transparent translation. On the 68040, lots of often unused
 408          * page tables would be needed otherwise. On a MegaSTE or similar,
 409          * the highest byte is stripped off by hardware due to the 24 bit
 410          * design of the bus.
 411          */
 412
 413         if (CPU_IS_020_OR_030) {
 414                 unsigned long tt1_val;
 415                 tt1_val = 0xfe008543;   /* Translate 0xfexxxxxx, enable, cache
 416                                          * inhibit, read and write, FDC mask = 3,
 417                                          * FDC val = 4 -> Supervisor only */
 418                 asm volatile ("\n"
 419                         "       .chip   68030\n"
 420                         "       pmove   %0,%/tt1\n"
 421                         "       .chip   68k"
 422                         : : "m" (tt1_val));
 423         } else {
 424                 asm volatile ("\n"
 425                         "       .chip   68040\n"
 426                         "       movec   %0,%%itt1\n"
 427                         "       movec   %0,%%dtt1\n"
 428                         "       .chip   68k"
 429                         :
 430                         : "d" (0xfe00a040));    /* Translate 0xfexxxxxx, enable,
 431                                                  * supervisor only, non-cacheable/
 432                                                  * serialized, writable */
 433
 434         }
 435
 436         /* Fetch tos version at Physical 2 */
 437         /*
 438          * We my not be able to access this address if the kernel is
 439          * loaded to st ram, since the first page is unmapped.  On the
 440          * Medusa this is always the case and there is nothing we can do
 441          * about this, so we just assume the smaller offset.  For the TT
 442          * we use the fact that in head.S we have set up a mapping
 443          * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
 444          * in the last 16MB of the address space.
 445          */
 446         tos_version = (MACH_IS_MEDUSA) ?
 447                         0xfff : *(unsigned short *)0xff000002;
 448         atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
 449 }
 450
 451 #ifdef CONFIG_HEARTBEAT
 452 static void atari_heartbeat(int on)
 453 {
 454         unsigned char tmp;
 455         unsigned long flags;
 456
 457         if (atari_dont_touch_floppy_select)
 458                 return;
 459
 460         local_irq_save(flags);
 461         sound_ym.rd_data_reg_sel = 14;  /* Select PSG Port A */
 462         tmp = sound_ym.rd_data_reg_sel;
 463         sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
 464         local_irq_restore(flags);
 465 }
 466 #endif
 467
 468 /* ++roman:
 469  *
 470  * This function does a reset on machines that lack the ability to
 471  * assert the processor's _RESET signal somehow via hardware. It is
 472  * based on the fact that you can find the initial SP and PC values
 473  * after a reset at physical addresses 0 and 4. This works pretty well
 474  * for Atari machines, since the lowest 8 bytes of physical memory are
 475  * really ROM (mapped by hardware). For other 680x0 machines: don't
 476  * know if it works...
 477  *
 478  * To get the values at addresses 0 and 4, the MMU better is turned
 479  * off first. After that, we have to jump into physical address space
 480  * (the PC before the pmove statement points to the virtual address of
 481  * the code). Getting that physical address is not hard, but the code
 482  * becomes a bit complex since I've tried to ensure that the jump
 483  * statement after the pmove is in the cache already (otherwise the
 484  * processor can't fetch it!). For that, the code first jumps to the
 485  * jump statement with the (virtual) address of the pmove section in
 486  * an address register . The jump statement is surely in the cache
 487  * now. After that, that physical address of the reset code is loaded
 488  * into the same address register, pmove is done and the same jump
 489  * statements goes to the reset code. Since there are not many
 490  * statements between the two jumps, I hope it stays in the cache.
 491  *
 492  * The C code makes heavy use of the GCC features that you can get the
 493  * address of a C label. No hope to compile this with another compiler
 494  * than GCC!
 495  */
 496
 497 /* ++andreas: no need for complicated code, just depend on prefetch */
 498
 499 static void atari_reset(void)
 500 {
 501         long tc_val = 0;
 502         long reset_addr;
 503
 504         /*
 505          * On the Medusa, phys. 0x4 may contain garbage because it's no
 506          * ROM.  See above for explanation why we cannot use PTOV(4).
 507          */
 508         reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
 509                      *(unsigned long *) 0xff000004;
 510
 511         /* reset ACIA for switch off OverScan, if it's active */
 512         if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
 513                 acia.key_ctrl = ACIA_RESET;
 514         if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
 515                 acia.mid_ctrl = ACIA_RESET;
 516
 517         /* processor independent: turn off interrupts and reset the VBR;
 518          * the caches must be left enabled, else prefetching the final jump
 519          * instruction doesn't work.
 520          */
 521         local_irq_disable();
 522         asm volatile ("movec    %0,%%vbr"
 523                         : : "d" (0));
 524
 525         if (CPU_IS_040_OR_060) {
 526                 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 527                 if (CPU_IS_060) {
 528                         /* 68060: clear PCR to turn off superscalar operation */
 529                         asm volatile ("\n"
 530                                 "       .chip 68060\n"
 531                                 "       movec %0,%%pcr\n"
 532                                 "       .chip 68k"
 533                                 : : "d" (0));
 534                 }
 535
 536                 asm volatile ("\n"
 537                         "       move.l  %0,%%d0\n"
 538                         "       and.l   #0xff000000,%%d0\n"
 539                         "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 540                         "       .chip   68040\n"
 541                         "       movec   %%d0,%%itt0\n"
 542                         "       movec   %%d0,%%dtt0\n"
 543                         "       .chip   68k\n"
 544                         "       jmp     %0@"
 545                         : : "a" (jmp_addr040)
 546                         : "d0");
 547         jmp_addr_label040:
 548                 asm volatile ("\n"
 549                         "       moveq   #0,%%d0\n"
 550                         "       nop\n"
 551                         "       .chip   68040\n"
 552                         "       cinva   %%bc\n"
 553                         "       nop\n"
 554                         "       pflusha\n"
 555                         "       nop\n"
 556                         "       movec   %%d0,%%tc\n"
 557                         "       nop\n"
 558                         /* the following setup of transparent translations is needed on the
 559                          * Afterburner040 to successfully reboot. Other machines shouldn't
 560                          * care about a different tt regs setup, they also didn't care in
 561                          * the past that the regs weren't turned off. */
 562                         "       move.l  #0xffc000,%%d0\n" /* whole insn space cacheable */
 563                         "       movec   %%d0,%%itt0\n"
 564                         "       movec   %%d0,%%itt1\n"
 565                         "       or.w    #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
 566                         "       movec   %%d0,%%dtt0\n"
 567                         "       movec   %%d0,%%dtt1\n"
 568                         "       .chip   68k\n"
 569                         "       jmp     %0@"
 570                         : /* no outputs */
 571                         : "a" (reset_addr)
 572                         : "d0");
 573         } else
 574                 asm volatile ("\n"
 575                         "       pmove   %0,%%tc\n"
 576                         "       jmp     %1@"
 577                         : /* no outputs */
 578                         : "m" (tc_val), "a" (reset_addr));
 579 }
 580
 581
 582 static void atari_get_model(char *model)
 583 {
 584         strcpy(model, "Atari ");
 585         switch (atari_mch_cookie >> 16) {
 586         case ATARI_MCH_ST:
 587                 if (ATARIHW_PRESENT(MSTE_CLK))
 588                         strcat(model, "Mega ST");
 589                 else
 590                         strcat(model, "ST");
 591                 break;
 592         case ATARI_MCH_STE:
 593                 if (MACH_IS_MSTE)
 594                         strcat(model, "Mega STE");
 595                 else
 596                         strcat(model, "STE");
 597                 break;
 598         case ATARI_MCH_TT:
 599                 if (MACH_IS_MEDUSA)
 600                         /* Medusa has TT _MCH cookie */
 601                         strcat(model, "Medusa");
 602                 else
 603                         strcat(model, "TT");
 604                 break;
 605         case ATARI_MCH_FALCON:
 606                 strcat(model, "Falcon");
 607                 if (MACH_IS_AB40)
 608                         strcat(model, " (with Afterburner040)");
 609                 break;
 610         default:
 611                 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
 612                         atari_mch_cookie);
 613                 break;
 614         }
 615 }
 616
 617
 618 static void atari_get_hardware_list(struct seq_file *m)
 619 {
 620         int i;
 621
 622         for (i = 0; i < m68k_num_memory; i++)
 623                 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
 624                                 m68k_memory[i].size >> 20, m68k_memory[i].addr,
 625                                 (m68k_memory[i].addr & 0xff000000 ?
 626                                  "alternate RAM" : "ST-RAM"));
 627
 628 #define ATARIHW_ANNOUNCE(name, str)                     \
 629         if (ATARIHW_PRESENT(name))                      \
 630                 seq_printf(m, "\t%s\n", str)
 631
 632         seq_printf(m, "Detected hardware:\n");
 633         ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
 634         ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
 635         ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
 636         ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
 637         ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
 638         ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
 639         ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
 640         ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
 641         ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
 642         ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
 643         ATARIHW_ANNOUNCE(IDE, "IDE Interface");
 644         ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
 645         ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
 646         ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
 647         ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
 648         ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
 649         ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
 650         ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
 651         ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
 652         ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
 653         ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
 654         ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
 655         ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
 656         ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
 657         ATARIHW_ANNOUNCE(SCU, "System Control Unit");
 658         ATARIHW_ANNOUNCE(BLITTER, "Blitter");
 659         ATARIHW_ANNOUNCE(VME, "VME Bus");
 660         ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
 661 }
 662
 663 /*
 664  * MSch: initial platform device support for Atari,
 665  * required for EtherNAT/EtherNEC/NetUSBee drivers
 666  */
 667
 668 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
 669 static void isp1160_delay(struct device *dev, int delay)
 670 {
 671         ndelay(delay);
 672 }
 673 #endif
 674
 675 #ifdef CONFIG_ATARI_ETHERNAT
 676 /*
 677  * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
 678  */
 679
 680 #define ATARI_ETHERNAT_IRQ              140
 681
 682 static struct resource smc91x_resources[] = {
 683         [0] = {
 684                 .name   = "smc91x-regs",
 685                 .start  = ATARI_ETHERNAT_PHYS_ADDR,
 686                 .end    = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
 687                 .flags  = IORESOURCE_MEM,
 688         },
 689         [1] = {
 690                 .name   = "smc91x-irq",
 691                 .start  = ATARI_ETHERNAT_IRQ,
 692                 .end    = ATARI_ETHERNAT_IRQ,
 693                 .flags  = IORESOURCE_IRQ,
 694         },
 695 };
 696
 697 static struct platform_device smc91x_device = {
 698         .name           = "smc91x",
 699         .id             = -1,
 700         .num_resources  = ARRAY_SIZE(smc91x_resources),
 701         .resource       = smc91x_resources,
 702 };
 703
 704 /*
 705  * ISP 1160 - using the isp116x-hcd module
 706  */
 707
 708 #define ATARI_USB_PHYS_ADDR     0x80000012
 709 #define ATARI_USB_IRQ           139
 710
 711 static struct resource isp1160_resources[] = {
 712         [0] = {
 713                 .name   = "isp1160-data",
 714                 .start  = ATARI_USB_PHYS_ADDR,
 715                 .end    = ATARI_USB_PHYS_ADDR + 0x1,
 716                 .flags  = IORESOURCE_MEM,
 717         },
 718         [1] = {
 719                 .name   = "isp1160-regs",
 720                 .start  = ATARI_USB_PHYS_ADDR + 0x4,
 721                 .end    = ATARI_USB_PHYS_ADDR + 0x5,
 722                 .flags  = IORESOURCE_MEM,
 723         },
 724         [2] = {
 725                 .name   = "isp1160-irq",
 726                 .start  = ATARI_USB_IRQ,
 727                 .end    = ATARI_USB_IRQ,
 728                 .flags  = IORESOURCE_IRQ,
 729         },
 730 };
 731
 732 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 733 static struct isp116x_platform_data isp1160_platform_data = {
 734         /* Enable internal resistors on downstream ports */
 735         .sel15Kres              = 1,
 736         /* On-chip overcurrent protection */
 737         .oc_enable              = 1,
 738         /* INT output polarity */
 739         .int_act_high           = 1,
 740         /* INT edge or level triggered */
 741         .int_edge_triggered     = 0,
 742
 743         /* WAKEUP pin connected - NOT SUPPORTED  */
 744         /* .remote_wakeup_connected = 0, */
 745         /* Wakeup by devices on usb bus enabled */
 746         .remote_wakeup_enable   = 0,
 747         .delay                  = isp1160_delay,
 748 };
 749
 750 static struct platform_device isp1160_device = {
 751         .name           = "isp116x-hcd",
 752         .id             = 0,
 753         .num_resources  = ARRAY_SIZE(isp1160_resources),
 754         .resource       = isp1160_resources,
 755         .dev                    = {
 756                 .platform_data  = &isp1160_platform_data,
 757         },
 758 };
 759
 760 static struct platform_device *atari_ethernat_devices[] __initdata = {
 761         &smc91x_device,
 762         &isp1160_device
 763 };
 764 #endif /* CONFIG_ATARI_ETHERNAT */
 765
 766 #ifdef CONFIG_ATARI_ETHERNEC
 767 /*
 768  * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
 769  * handled by ne.c driver
 770  */
 771
 772 #define ATARI_ETHERNEC_PHYS_ADDR        0xfffa0000
 773 #define ATARI_ETHERNEC_BASE             0x300
 774 #define ATARI_ETHERNEC_IRQ              IRQ_MFP_TIMER1
 775
 776 static struct resource rtl8019_resources[] = {
 777         [0] = {
 778                 .name   = "rtl8019-regs",
 779                 .start  = ATARI_ETHERNEC_BASE,
 780                 .end    = ATARI_ETHERNEC_BASE + 0x20 - 1,
 781                 .flags  = IORESOURCE_IO,
 782         },
 783         [1] = {
 784                 .name   = "rtl8019-irq",
 785                 .start  = ATARI_ETHERNEC_IRQ,
 786                 .end    = ATARI_ETHERNEC_IRQ,
 787                 .flags  = IORESOURCE_IRQ,
 788         },
 789 };
 790
 791 static struct platform_device rtl8019_device = {
 792         .name           = "ne",
 793         .id             = -1,
 794         .num_resources  = ARRAY_SIZE(rtl8019_resources),
 795         .resource       = rtl8019_resources,
 796 };
 797
 798 /*
 799  * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
 800  */
 801
 802 #define ATARI_NETUSBEE_PHYS_ADDR        0xfffa8000
 803 #define ATARI_NETUSBEE_BASE             0x340
 804 #define ATARI_NETUSBEE_IRQ              IRQ_MFP_TIMER2
 805
 806 static struct resource netusbee_resources[] = {
 807         [0] = {
 808                 .name   = "isp1160-data",
 809                 .start  = ATARI_NETUSBEE_BASE,
 810                 .end    = ATARI_NETUSBEE_BASE + 0x1,
 811                 .flags  = IORESOURCE_MEM,
 812         },
 813         [1] = {
 814                 .name   = "isp1160-regs",
 815                 .start  = ATARI_NETUSBEE_BASE + 0x20,
 816                 .end    = ATARI_NETUSBEE_BASE + 0x21,
 817                 .flags  = IORESOURCE_MEM,
 818         },
 819         [2] = {
 820                 .name   = "isp1160-irq",
 821                 .start  = ATARI_NETUSBEE_IRQ,
 822                 .end    = ATARI_NETUSBEE_IRQ,
 823                 .flags  = IORESOURCE_IRQ,
 824         },
 825 };
 826
 827 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 828 static struct isp116x_platform_data netusbee_platform_data = {
 829         /* Enable internal resistors on downstream ports */
 830         .sel15Kres              = 1,
 831         /* On-chip overcurrent protection */
 832         .oc_enable              = 1,
 833         /* INT output polarity */
 834         .int_act_high           = 1,
 835         /* INT edge or level triggered */
 836         .int_edge_triggered     = 0,
 837
 838         /* WAKEUP pin connected - NOT SUPPORTED  */
 839         /* .remote_wakeup_connected = 0, */
 840         /* Wakeup by devices on usb bus enabled */
 841         .remote_wakeup_enable   = 0,
 842         .delay                  = isp1160_delay,
 843 };
 844
 845 static struct platform_device netusbee_device = {
 846         .name           = "isp116x-hcd",
 847         .id             = 1,
 848         .num_resources  = ARRAY_SIZE(netusbee_resources),
 849         .resource       = netusbee_resources,
 850         .dev                    = {
 851                 .platform_data  = &netusbee_platform_data,
 852         },
 853 };
 854
 855 static struct platform_device *atari_netusbee_devices[] __initdata = {
 856         &rtl8019_device,
 857         &netusbee_device
 858 };
 859 #endif /* CONFIG_ATARI_ETHERNEC */
 860
 861 int __init atari_platform_init(void)
 862 {
 863         int rv = 0;
 864
 865         if (!MACH_IS_ATARI)
 866                 return -ENODEV;
 867
 868 #ifdef CONFIG_ATARI_ETHERNAT
 869         {
 870                 unsigned char *enatc_virt;
 871                 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
 872                 if (hwreg_present(enatc_virt)) {
 873                         rv = platform_add_devices(atari_ethernat_devices,
 874                                                 ARRAY_SIZE(atari_ethernat_devices));
 875                 }
 876                 iounmap(enatc_virt);
 877         }
 878 #endif
 879
 880 #ifdef CONFIG_ATARI_ETHERNEC
 881         {
 882                 int error;
 883                 unsigned char *enec_virt;
 884                 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
 885                 if (hwreg_present(enec_virt)) {
 886                         error = platform_add_devices(atari_netusbee_devices,
 887                                                 ARRAY_SIZE(atari_netusbee_devices));
 888                         if (error && !rv)
 889                                 rv = error;
 890                 }
 891                 iounmap(enec_virt);
 892         }
 893 #endif
 894
 895         return rv;
 896 }
 897
 898 arch_initcall(atari_platform_init);