arch/m68k/atari/config.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
scc_test
atari_parse_bootinfo
atari_switches_setup
config_atari
atari_heartbeat
atari_reset
atari_get_model
atari_get_hardware_list
isp1160_delay
atari_platform_init
   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 int atari_mste_hwclk (int, struct rtc_time *);
  82 extern int atari_tt_hwclk (int, struct rtc_time *);
  83 
  84 /* ++roman: This is a more elaborate test for an SCC chip, since the plain
  85  * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
  86  * board in the Medusa is possible. Also, the addresses where the ST_ESCC
  87  * resides generate DTACK without the chip, too.
  88  * The method is to write values into the interrupt vector register, that
  89  * should be readable without trouble (from channel A!).
  90  */
  91 
  92 static int __init scc_test(volatile char *ctla)
  93 {
  94         if (!hwreg_present(ctla))
  95                 return 0;
  96         MFPDELAY();
  97 
  98         *ctla = 2;
  99         MFPDELAY();
 100         *ctla = 0x40;
 101         MFPDELAY();
 102 
 103         *ctla = 2;
 104         MFPDELAY();
 105         if (*ctla != 0x40)
 106                 return 0;
 107         MFPDELAY();
 108 
 109         *ctla = 2;
 110         MFPDELAY();
 111         *ctla = 0x60;
 112         MFPDELAY();
 113 
 114         *ctla = 2;
 115         MFPDELAY();
 116         if (*ctla != 0x60)
 117                 return 0;
 118 
 119         return 1;
 120 }
 121 
 122 
 123     /*
 124      *  Parse an Atari-specific record in the bootinfo
 125      */
 126 
 127 int __init atari_parse_bootinfo(const struct bi_record *record)
 128 {
 129         int unknown = 0;
 130         const void *data = record->data;
 131 
 132         switch (be16_to_cpu(record->tag)) {
 133         case BI_ATARI_MCH_COOKIE:
 134                 atari_mch_cookie = be32_to_cpup(data);
 135                 break;
 136         case BI_ATARI_MCH_TYPE:
 137                 atari_mch_type = be32_to_cpup(data);
 138                 break;
 139         default:
 140                 unknown = 1;
 141                 break;
 142         }
 143         return unknown;
 144 }
 145 
 146 
 147 /* Parse the Atari-specific switches= option. */
 148 static int __init atari_switches_setup(char *str)
 149 {
 150         char switches[COMMAND_LINE_SIZE];
 151         char *p;
 152         int ovsc_shift;
 153         char *args = switches;
 154 
 155         if (!MACH_IS_ATARI)
 156                 return 0;
 157 
 158         /* copy string to local array, strsep works destructively... */
 159         strcpy(switches, str);
 160         atari_switches = 0;
 161 
 162         /* parse the options */
 163         while ((p = strsep(&args, ",")) != NULL) {
 164                 if (!*p)
 165                         continue;
 166                 ovsc_shift = 0;
 167                 if (strncmp(p, "ov_", 3) == 0) {
 168                         p += 3;
 169                         ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
 170                 }
 171 
 172                 if (strcmp(p, "ikbd") == 0) {
 173                         /* RTS line of IKBD ACIA */
 174                         atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
 175                 } else if (strcmp(p, "midi") == 0) {
 176                         /* RTS line of MIDI ACIA */
 177                         atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
 178                 } else if (strcmp(p, "snd6") == 0) {
 179                         atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
 180                 } else if (strcmp(p, "snd7") == 0) {
 181                         atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
 182                 }
 183         }
 184         return 0;
 185 }
 186 
 187 early_param("switches", atari_switches_setup);
 188 
 189 
 190     /*
 191      *  Setup the Atari configuration info
 192      */
 193 
 194 void __init config_atari(void)
 195 {
 196         unsigned short tos_version;
 197 
 198         memset(&atari_hw_present, 0, sizeof(atari_hw_present));
 199 
 200         /* Change size of I/O space from 64KB to 4GB. */
 201         ioport_resource.end  = 0xFFFFFFFF;
 202 
 203         mach_sched_init      = atari_sched_init;
 204         mach_init_IRQ        = atari_init_IRQ;
 205         mach_get_model   = atari_get_model;
 206         mach_get_hardware_list = atari_get_hardware_list;
 207         mach_reset           = atari_reset;
 208         mach_max_dma_address = 0xffffff;
 209 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
 210         mach_beep          = atari_mksound;
 211 #endif
 212 #ifdef CONFIG_HEARTBEAT
 213         mach_heartbeat = atari_heartbeat;
 214 #endif
 215 
 216         /* Set switches as requested by the user */
 217         if (atari_switches & ATARI_SWITCH_IKBD)
 218                 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
 219         if (atari_switches & ATARI_SWITCH_MIDI)
 220                 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
 221         if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
 222                 sound_ym.rd_data_reg_sel = 14;
 223                 sound_ym.wd_data = sound_ym.rd_data_reg_sel |
 224                                    ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
 225                                    ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
 226         }
 227 
 228         /* ++bjoern:
 229          * Determine hardware present
 230          */
 231 
 232         pr_info("Atari hardware found:");
 233         if (MACH_IS_MEDUSA) {
 234                 /* There's no Atari video hardware on the Medusa, but all the
 235                  * addresses below generate a DTACK so no bus error occurs! */
 236         } else if (hwreg_present(f030_xreg)) {
 237                 ATARIHW_SET(VIDEL_SHIFTER);
 238                 pr_cont(" VIDEL");
 239                 /* This is a temporary hack: If there is Falcon video
 240                  * hardware, we assume that the ST-DMA serves SCSI instead of
 241                  * ACSI. In the future, there should be a better method for
 242                  * this...
 243                  */
 244                 ATARIHW_SET(ST_SCSI);
 245                 pr_cont(" STDMA-SCSI");
 246         } else if (hwreg_present(tt_palette)) {
 247                 ATARIHW_SET(TT_SHIFTER);
 248                 pr_cont(" TT_SHIFTER");
 249         } else if (hwreg_present(&shifter_st.bas_hi)) {
 250                 if (hwreg_present(&shifter_st.bas_lo) &&
 251                     (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) {
 252                         ATARIHW_SET(EXTD_SHIFTER);
 253                         pr_cont(" EXTD_SHIFTER");
 254                 } else {
 255                         ATARIHW_SET(STND_SHIFTER);
 256                         pr_cont(" STND_SHIFTER");
 257                 }
 258         }
 259         if (hwreg_present(&st_mfp.par_dt_reg)) {
 260                 ATARIHW_SET(ST_MFP);
 261                 pr_cont(" ST_MFP");
 262         }
 263         if (hwreg_present(&tt_mfp.par_dt_reg)) {
 264                 ATARIHW_SET(TT_MFP);
 265                 pr_cont(" TT_MFP");
 266         }
 267         if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 268                 ATARIHW_SET(SCSI_DMA);
 269                 pr_cont(" TT_SCSI_DMA");
 270         }
 271         /*
 272          * The ST-DMA address registers aren't readable
 273          * on all Medusas, so the test below may fail
 274          */
 275         if (MACH_IS_MEDUSA ||
 276             (hwreg_present(&st_dma.dma_vhi) &&
 277              (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
 278              st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
 279              (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
 280              st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
 281                 ATARIHW_SET(EXTD_DMA);
 282                 pr_cont(" EXTD_DMA");
 283         }
 284         if (hwreg_present(&tt_scsi.scsi_data)) {
 285                 ATARIHW_SET(TT_SCSI);
 286                 pr_cont(" TT_SCSI");
 287         }
 288         if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 289                 ATARIHW_SET(YM_2149);
 290                 pr_cont(" YM2149");
 291         }
 292         if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 293                 ATARIHW_SET(PCM_8BIT);
 294                 pr_cont(" PCM");
 295         }
 296         if (hwreg_present(&falcon_codec.unused5)) {
 297                 ATARIHW_SET(CODEC);
 298                 pr_cont(" CODEC");
 299         }
 300         if (hwreg_present(&dsp56k_host_interface.icr)) {
 301                 ATARIHW_SET(DSP56K);
 302                 pr_cont(" DSP56K");
 303         }
 304         if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
 305 #if 0
 306             /* This test sucks! Who knows some better? */
 307             (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
 308             (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
 309 #else
 310             !MACH_IS_MEDUSA
 311 #endif
 312             ) {
 313                 ATARIHW_SET(SCC_DMA);
 314                 pr_cont(" SCC_DMA");
 315         }
 316         if (scc_test(&atari_scc.cha_a_ctrl)) {
 317                 ATARIHW_SET(SCC);
 318                 pr_cont(" SCC");
 319         }
 320         if (scc_test(&st_escc.cha_b_ctrl)) {
 321                 ATARIHW_SET(ST_ESCC);
 322                 pr_cont(" ST_ESCC");
 323         }
 324         if (hwreg_present(&tt_scu.sys_mask)) {
 325                 ATARIHW_SET(SCU);
 326                 /* Assume a VME bus if there's a SCU */
 327                 ATARIHW_SET(VME);
 328                 pr_cont(" VME SCU");
 329         }
 330         if (hwreg_present((void *)(0xffff9210))) {
 331                 ATARIHW_SET(ANALOG_JOY);
 332                 pr_cont(" ANALOG_JOY");
 333         }
 334         if (hwreg_present(blitter.halftone)) {
 335                 ATARIHW_SET(BLITTER);
 336                 pr_cont(" BLITTER");
 337         }
 338         if (hwreg_present((void *)0xfff00039)) {
 339                 ATARIHW_SET(IDE);
 340                 pr_cont(" IDE");
 341         }
 342 #if 1 /* This maybe wrong */
 343         if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
 344             hwreg_present(&tt_microwire.mask) &&
 345             (tt_microwire.mask = 0x7ff,
 346              udelay(1),
 347              tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
 348              udelay(1),
 349              tt_microwire.data != 0)) {
 350                 ATARIHW_SET(MICROWIRE);
 351                 while (tt_microwire.mask != 0x7ff)
 352                         ;
 353                 pr_cont(" MICROWIRE");
 354         }
 355 #endif
 356         if (hwreg_present(&tt_rtc.regsel)) {
 357                 ATARIHW_SET(TT_CLK);
 358                 pr_cont(" TT_CLK");
 359                 mach_hwclk = atari_tt_hwclk;
 360         }
 361         if (hwreg_present(&mste_rtc.sec_ones)) {
 362                 ATARIHW_SET(MSTE_CLK);
 363                 pr_cont(" MSTE_CLK");
 364                 mach_hwclk = atari_mste_hwclk;
 365         }
 366         if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
 367             hwreg_write(&dma_wd.fdc_speed, 0)) {
 368                 ATARIHW_SET(FDCSPEED);
 369                 pr_cont(" FDC_SPEED");
 370         }
 371         if (!ATARIHW_PRESENT(ST_SCSI)) {
 372                 ATARIHW_SET(ACSI);
 373                 pr_cont(" ACSI");
 374         }
 375         pr_cont("\n");
 376 
 377         if (CPU_IS_040_OR_060)
 378                 /* Now it seems to be safe to turn of the tt0 transparent
 379                  * translation (the one that must not be turned off in
 380                  * head.S...)
 381                  */
 382                 asm volatile ("\n"
 383                         "       moveq   #0,%%d0\n"
 384                         "       .chip   68040\n"
 385                         "       movec   %%d0,%%itt0\n"
 386                         "       movec   %%d0,%%dtt0\n"
 387                         "       .chip   68k"
 388                         : /* no outputs */
 389                         : /* no inputs */
 390                         : "d0");
 391 
 392         /* allocator for memory that must reside in st-ram */
 393         atari_stram_init();
 394 
 395         /* Set up a mapping for the VMEbus address region:
 396          *
 397          * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
 398          * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
 399          * 0xfe000000 virt., because this can be done with a single
 400          * transparent translation. On the 68040, lots of often unused
 401          * page tables would be needed otherwise. On a MegaSTE or similar,
 402          * the highest byte is stripped off by hardware due to the 24 bit
 403          * design of the bus.
 404          */
 405 
 406         if (CPU_IS_020_OR_030) {
 407                 unsigned long tt1_val;
 408                 tt1_val = 0xfe008543;   /* Translate 0xfexxxxxx, enable, cache
 409                                          * inhibit, read and write, FDC mask = 3,
 410                                          * FDC val = 4 -> Supervisor only */
 411                 asm volatile ("\n"
 412                         "       .chip   68030\n"
 413                         "       pmove   %0,%/tt1\n"
 414                         "       .chip   68k"
 415                         : : "m" (tt1_val));
 416         } else {
 417                 asm volatile ("\n"
 418                         "       .chip   68040\n"
 419                         "       movec   %0,%%itt1\n"
 420                         "       movec   %0,%%dtt1\n"
 421                         "       .chip   68k"
 422                         :
 423                         : "d" (0xfe00a040));    /* Translate 0xfexxxxxx, enable,
 424                                                  * supervisor only, non-cacheable/
 425                                                  * serialized, writable */
 426 
 427         }
 428 
 429         /* Fetch tos version at Physical 2 */
 430         /*
 431          * We my not be able to access this address if the kernel is
 432          * loaded to st ram, since the first page is unmapped.  On the
 433          * Medusa this is always the case and there is nothing we can do
 434          * about this, so we just assume the smaller offset.  For the TT
 435          * we use the fact that in head.S we have set up a mapping
 436          * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
 437          * in the last 16MB of the address space.
 438          */
 439         tos_version = (MACH_IS_MEDUSA) ?
 440                         0xfff : *(unsigned short *)0xff000002;
 441         atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
 442 }
 443 
 444 #ifdef CONFIG_HEARTBEAT
 445 static void atari_heartbeat(int on)
 446 {
 447         unsigned char tmp;
 448         unsigned long flags;
 449 
 450         if (atari_dont_touch_floppy_select)
 451                 return;
 452 
 453         local_irq_save(flags);
 454         sound_ym.rd_data_reg_sel = 14;  /* Select PSG Port A */
 455         tmp = sound_ym.rd_data_reg_sel;
 456         sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
 457         local_irq_restore(flags);
 458 }
 459 #endif
 460 
 461 /* ++roman:
 462  *
 463  * This function does a reset on machines that lack the ability to
 464  * assert the processor's _RESET signal somehow via hardware. It is
 465  * based on the fact that you can find the initial SP and PC values
 466  * after a reset at physical addresses 0 and 4. This works pretty well
 467  * for Atari machines, since the lowest 8 bytes of physical memory are
 468  * really ROM (mapped by hardware). For other 680x0 machines: don't
 469  * know if it works...
 470  *
 471  * To get the values at addresses 0 and 4, the MMU better is turned
 472  * off first. After that, we have to jump into physical address space
 473  * (the PC before the pmove statement points to the virtual address of
 474  * the code). Getting that physical address is not hard, but the code
 475  * becomes a bit complex since I've tried to ensure that the jump
 476  * statement after the pmove is in the cache already (otherwise the
 477  * processor can't fetch it!). For that, the code first jumps to the
 478  * jump statement with the (virtual) address of the pmove section in
 479  * an address register . The jump statement is surely in the cache
 480  * now. After that, that physical address of the reset code is loaded
 481  * into the same address register, pmove is done and the same jump
 482  * statements goes to the reset code. Since there are not many
 483  * statements between the two jumps, I hope it stays in the cache.
 484  *
 485  * The C code makes heavy use of the GCC features that you can get the
 486  * address of a C label. No hope to compile this with another compiler
 487  * than GCC!
 488  */
 489 
 490 /* ++andreas: no need for complicated code, just depend on prefetch */
 491 
 492 static void atari_reset(void)
 493 {
 494         long tc_val = 0;
 495         long reset_addr;
 496 
 497         /*
 498          * On the Medusa, phys. 0x4 may contain garbage because it's no
 499          * ROM.  See above for explanation why we cannot use PTOV(4).
 500          */
 501         reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
 502                      *(unsigned long *) 0xff000004;
 503 
 504         /* reset ACIA for switch off OverScan, if it's active */
 505         if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
 506                 acia.key_ctrl = ACIA_RESET;
 507         if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
 508                 acia.mid_ctrl = ACIA_RESET;
 509 
 510         /* processor independent: turn off interrupts and reset the VBR;
 511          * the caches must be left enabled, else prefetching the final jump
 512          * instruction doesn't work.
 513          */
 514         local_irq_disable();
 515         asm volatile ("movec    %0,%%vbr"
 516                         : : "d" (0));
 517 
 518         if (CPU_IS_040_OR_060) {
 519                 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 520                 if (CPU_IS_060) {
 521                         /* 68060: clear PCR to turn off superscalar operation */
 522                         asm volatile ("\n"
 523                                 "       .chip 68060\n"
 524                                 "       movec %0,%%pcr\n"
 525                                 "       .chip 68k"
 526                                 : : "d" (0));
 527                 }
 528 
 529                 asm volatile ("\n"
 530                         "       move.l  %0,%%d0\n"
 531                         "       and.l   #0xff000000,%%d0\n"
 532                         "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 533                         "       .chip   68040\n"
 534                         "       movec   %%d0,%%itt0\n"
 535                         "       movec   %%d0,%%dtt0\n"
 536                         "       .chip   68k\n"
 537                         "       jmp     %0@"
 538                         : : "a" (jmp_addr040)
 539                         : "d0");
 540         jmp_addr_label040:
 541                 asm volatile ("\n"
 542                         "       moveq   #0,%%d0\n"
 543                         "       nop\n"
 544                         "       .chip   68040\n"
 545                         "       cinva   %%bc\n"
 546                         "       nop\n"
 547                         "       pflusha\n"
 548                         "       nop\n"
 549                         "       movec   %%d0,%%tc\n"
 550                         "       nop\n"
 551                         /* the following setup of transparent translations is needed on the
 552                          * Afterburner040 to successfully reboot. Other machines shouldn't
 553                          * care about a different tt regs setup, they also didn't care in
 554                          * the past that the regs weren't turned off. */
 555                         "       move.l  #0xffc000,%%d0\n" /* whole insn space cacheable */
 556                         "       movec   %%d0,%%itt0\n"
 557                         "       movec   %%d0,%%itt1\n"
 558                         "       or.w    #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
 559                         "       movec   %%d0,%%dtt0\n"
 560                         "       movec   %%d0,%%dtt1\n"
 561                         "       .chip   68k\n"
 562                         "       jmp     %0@"
 563                         : /* no outputs */
 564                         : "a" (reset_addr)
 565                         : "d0");
 566         } else
 567                 asm volatile ("\n"
 568                         "       pmove   %0,%%tc\n"
 569                         "       jmp     %1@"
 570                         : /* no outputs */
 571                         : "m" (tc_val), "a" (reset_addr));
 572 }
 573 
 574 
 575 static void atari_get_model(char *model)
 576 {
 577         strcpy(model, "Atari ");
 578         switch (atari_mch_cookie >> 16) {
 579         case ATARI_MCH_ST:
 580                 if (ATARIHW_PRESENT(MSTE_CLK))
 581                         strcat(model, "Mega ST");
 582                 else
 583                         strcat(model, "ST");
 584                 break;
 585         case ATARI_MCH_STE:
 586                 if (MACH_IS_MSTE)
 587                         strcat(model, "Mega STE");
 588                 else
 589                         strcat(model, "STE");
 590                 break;
 591         case ATARI_MCH_TT:
 592                 if (MACH_IS_MEDUSA)
 593                         /* Medusa has TT _MCH cookie */
 594                         strcat(model, "Medusa");
 595                 else
 596                         strcat(model, "TT");
 597                 break;
 598         case ATARI_MCH_FALCON:
 599                 strcat(model, "Falcon");
 600                 if (MACH_IS_AB40)
 601                         strcat(model, " (with Afterburner040)");
 602                 break;
 603         default:
 604                 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
 605                         atari_mch_cookie);
 606                 break;
 607         }
 608 }
 609 
 610 
 611 static void atari_get_hardware_list(struct seq_file *m)
 612 {
 613         int i;
 614 
 615         for (i = 0; i < m68k_num_memory; i++)
 616                 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
 617                                 m68k_memory[i].size >> 20, m68k_memory[i].addr,
 618                                 (m68k_memory[i].addr & 0xff000000 ?
 619                                  "alternate RAM" : "ST-RAM"));
 620 
 621 #define ATARIHW_ANNOUNCE(name, str)                     \
 622         if (ATARIHW_PRESENT(name))                      \
 623                 seq_printf(m, "\t%s\n", str)
 624 
 625         seq_puts(m, "Detected hardware:\n");
 626         ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
 627         ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
 628         ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
 629         ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
 630         ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
 631         ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
 632         ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
 633         ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
 634         ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
 635         ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
 636         ATARIHW_ANNOUNCE(IDE, "IDE Interface");
 637         ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
 638         ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
 639         ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
 640         ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
 641         ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
 642         ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
 643         ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
 644         ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
 645         ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
 646         ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
 647         ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
 648         ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
 649         ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
 650         ATARIHW_ANNOUNCE(SCU, "System Control Unit");
 651         ATARIHW_ANNOUNCE(BLITTER, "Blitter");
 652         ATARIHW_ANNOUNCE(VME, "VME Bus");
 653         ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
 654 }
 655 
 656 /*
 657  * MSch: initial platform device support for Atari,
 658  * required for EtherNAT/EtherNEC/NetUSBee drivers
 659  */
 660 
 661 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
 662 static void isp1160_delay(struct device *dev, int delay)
 663 {
 664         ndelay(delay);
 665 }
 666 #endif
 667 
 668 #ifdef CONFIG_ATARI_ETHERNAT
 669 /*
 670  * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
 671  */
 672 
 673 #define ATARI_ETHERNAT_IRQ              140
 674 
 675 static struct resource smc91x_resources[] = {
 676         [0] = {
 677                 .name   = "smc91x-regs",
 678                 .start  = ATARI_ETHERNAT_PHYS_ADDR,
 679                 .end    = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
 680                 .flags  = IORESOURCE_MEM,
 681         },
 682         [1] = {
 683                 .name   = "smc91x-irq",
 684                 .start  = ATARI_ETHERNAT_IRQ,
 685                 .end    = ATARI_ETHERNAT_IRQ,
 686                 .flags  = IORESOURCE_IRQ,
 687         },
 688 };
 689 
 690 static struct platform_device smc91x_device = {
 691         .name           = "smc91x",
 692         .id             = -1,
 693         .num_resources  = ARRAY_SIZE(smc91x_resources),
 694         .resource       = smc91x_resources,
 695 };
 696 
 697 /*
 698  * ISP 1160 - using the isp116x-hcd module
 699  */
 700 
 701 #define ATARI_USB_PHYS_ADDR     0x80000012
 702 #define ATARI_USB_IRQ           139
 703 
 704 static struct resource isp1160_resources[] = {
 705         [0] = {
 706                 .name   = "isp1160-data",
 707                 .start  = ATARI_USB_PHYS_ADDR,
 708                 .end    = ATARI_USB_PHYS_ADDR + 0x1,
 709                 .flags  = IORESOURCE_MEM,
 710         },
 711         [1] = {
 712                 .name   = "isp1160-regs",
 713                 .start  = ATARI_USB_PHYS_ADDR + 0x4,
 714                 .end    = ATARI_USB_PHYS_ADDR + 0x5,
 715                 .flags  = IORESOURCE_MEM,
 716         },
 717         [2] = {
 718                 .name   = "isp1160-irq",
 719                 .start  = ATARI_USB_IRQ,
 720                 .end    = ATARI_USB_IRQ,
 721                 .flags  = IORESOURCE_IRQ,
 722         },
 723 };
 724 
 725 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 726 static struct isp116x_platform_data isp1160_platform_data = {
 727         /* Enable internal resistors on downstream ports */
 728         .sel15Kres              = 1,
 729         /* On-chip overcurrent protection */
 730         .oc_enable              = 1,
 731         /* INT output polarity */
 732         .int_act_high           = 1,
 733         /* INT edge or level triggered */
 734         .int_edge_triggered     = 0,
 735 
 736         /* WAKEUP pin connected - NOT SUPPORTED  */
 737         /* .remote_wakeup_connected = 0, */
 738         /* Wakeup by devices on usb bus enabled */
 739         .remote_wakeup_enable   = 0,
 740         .delay                  = isp1160_delay,
 741 };
 742 
 743 static struct platform_device isp1160_device = {
 744         .name           = "isp116x-hcd",
 745         .id             = 0,
 746         .num_resources  = ARRAY_SIZE(isp1160_resources),
 747         .resource       = isp1160_resources,
 748         .dev                    = {
 749                 .platform_data  = &isp1160_platform_data,
 750         },
 751 };
 752 
 753 static struct platform_device *atari_ethernat_devices[] __initdata = {
 754         &smc91x_device,
 755         &isp1160_device
 756 };
 757 #endif /* CONFIG_ATARI_ETHERNAT */
 758 
 759 #ifdef CONFIG_ATARI_ETHERNEC
 760 /*
 761  * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
 762  * handled by ne.c driver
 763  */
 764 
 765 #define ATARI_ETHERNEC_PHYS_ADDR        0xfffa0000
 766 #define ATARI_ETHERNEC_BASE             0x300
 767 #define ATARI_ETHERNEC_IRQ              IRQ_MFP_TIMER1
 768 
 769 static struct resource rtl8019_resources[] = {
 770         [0] = {
 771                 .name   = "rtl8019-regs",
 772                 .start  = ATARI_ETHERNEC_BASE,
 773                 .end    = ATARI_ETHERNEC_BASE + 0x20 - 1,
 774                 .flags  = IORESOURCE_IO,
 775         },
 776         [1] = {
 777                 .name   = "rtl8019-irq",
 778                 .start  = ATARI_ETHERNEC_IRQ,
 779                 .end    = ATARI_ETHERNEC_IRQ,
 780                 .flags  = IORESOURCE_IRQ,
 781         },
 782 };
 783 
 784 static struct platform_device rtl8019_device = {
 785         .name           = "ne",
 786         .id             = -1,
 787         .num_resources  = ARRAY_SIZE(rtl8019_resources),
 788         .resource       = rtl8019_resources,
 789 };
 790 
 791 /*
 792  * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
 793  */
 794 
 795 #define ATARI_NETUSBEE_PHYS_ADDR        0xfffa8000
 796 #define ATARI_NETUSBEE_BASE             0x340
 797 #define ATARI_NETUSBEE_IRQ              IRQ_MFP_TIMER2
 798 
 799 static struct resource netusbee_resources[] = {
 800         [0] = {
 801                 .name   = "isp1160-data",
 802                 .start  = ATARI_NETUSBEE_BASE,
 803                 .end    = ATARI_NETUSBEE_BASE + 0x1,
 804                 .flags  = IORESOURCE_MEM,
 805         },
 806         [1] = {
 807                 .name   = "isp1160-regs",
 808                 .start  = ATARI_NETUSBEE_BASE + 0x20,
 809                 .end    = ATARI_NETUSBEE_BASE + 0x21,
 810                 .flags  = IORESOURCE_MEM,
 811         },
 812         [2] = {
 813                 .name   = "isp1160-irq",
 814                 .start  = ATARI_NETUSBEE_IRQ,
 815                 .end    = ATARI_NETUSBEE_IRQ,
 816                 .flags  = IORESOURCE_IRQ,
 817         },
 818 };
 819 
 820 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 821 static struct isp116x_platform_data netusbee_platform_data = {
 822         /* Enable internal resistors on downstream ports */
 823         .sel15Kres              = 1,
 824         /* On-chip overcurrent protection */
 825         .oc_enable              = 1,
 826         /* INT output polarity */
 827         .int_act_high           = 1,
 828         /* INT edge or level triggered */
 829         .int_edge_triggered     = 0,
 830 
 831         /* WAKEUP pin connected - NOT SUPPORTED  */
 832         /* .remote_wakeup_connected = 0, */
 833         /* Wakeup by devices on usb bus enabled */
 834         .remote_wakeup_enable   = 0,
 835         .delay                  = isp1160_delay,
 836 };
 837 
 838 static struct platform_device netusbee_device = {
 839         .name           = "isp116x-hcd",
 840         .id             = 1,
 841         .num_resources  = ARRAY_SIZE(netusbee_resources),
 842         .resource       = netusbee_resources,
 843         .dev                    = {
 844                 .platform_data  = &netusbee_platform_data,
 845         },
 846 };
 847 
 848 static struct platform_device *atari_netusbee_devices[] __initdata = {
 849         &rtl8019_device,
 850         &netusbee_device
 851 };
 852 #endif /* CONFIG_ATARI_ETHERNEC */
 853 
 854 #if IS_ENABLED(CONFIG_ATARI_SCSI)
 855 static const struct resource atari_scsi_st_rsrc[] __initconst = {
 856         {
 857                 .flags = IORESOURCE_IRQ,
 858                 .start = IRQ_MFP_FSCSI,
 859                 .end   = IRQ_MFP_FSCSI,
 860         },
 861 };
 862 
 863 static const struct resource atari_scsi_tt_rsrc[] __initconst = {
 864         {
 865                 .flags = IORESOURCE_IRQ,
 866                 .start = IRQ_TT_MFP_SCSI,
 867                 .end   = IRQ_TT_MFP_SCSI,
 868         },
 869 };
 870 #endif
 871 
 872 int __init atari_platform_init(void)
 873 {
 874         int rv = 0;
 875 
 876         if (!MACH_IS_ATARI)
 877                 return -ENODEV;
 878 
 879 #ifdef CONFIG_ATARI_ETHERNAT
 880         {
 881                 unsigned char *enatc_virt;
 882                 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
 883                 if (hwreg_present(enatc_virt)) {
 884                         rv = platform_add_devices(atari_ethernat_devices,
 885                                                 ARRAY_SIZE(atari_ethernat_devices));
 886                 }
 887                 iounmap(enatc_virt);
 888         }
 889 #endif
 890 
 891 #ifdef CONFIG_ATARI_ETHERNEC
 892         {
 893                 int error;
 894                 unsigned char *enec_virt;
 895                 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
 896                 if (hwreg_present(enec_virt)) {
 897                         error = platform_add_devices(atari_netusbee_devices,
 898                                                 ARRAY_SIZE(atari_netusbee_devices));
 899                         if (error && !rv)
 900                                 rv = error;
 901                 }
 902                 iounmap(enec_virt);
 903         }
 904 #endif
 905 
 906 #if IS_ENABLED(CONFIG_ATARI_SCSI)
 907         if (ATARIHW_PRESENT(ST_SCSI))
 908                 platform_device_register_simple("atari_scsi", -1,
 909                         atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
 910         else if (ATARIHW_PRESENT(TT_SCSI))
 911                 platform_device_register_simple("atari_scsi", -1,
 912                         atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
 913 #endif
 914 
 915         return rv;
 916 }
 917 
 918 arch_initcall(atari_platform_init);
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root/arch/m68k/atari/config.c

DEFINITIONS
