LXR linux/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
  50u_long atari_mch_cookie;
  51EXPORT_SYMBOL(atari_mch_cookie);
  52
  53u_long atari_mch_type;
  54EXPORT_SYMBOL(atari_mch_type);
  55
  56struct atari_hw_present atari_hw_present;
  57EXPORT_SYMBOL(atari_hw_present);
  58
  59u_long atari_switches;
  60EXPORT_SYMBOL(atari_switches);
  61
  62int atari_dont_touch_floppy_select;
  63EXPORT_SYMBOL(atari_dont_touch_floppy_select);
  64
  65int atari_rtc_year_offset;
  66
  67/* local function prototypes */
  68static void atari_reset(void);
  69static void atari_get_model(char *model);
  70static void atari_get_hardware_list(struct seq_file *m);
  71
  72/* atari specific irq functions */
  73extern void atari_init_IRQ (void);
  74extern void atari_mksound(unsigned int count, unsigned int ticks);
  75#ifdef CONFIG_HEARTBEAT
  76static void atari_heartbeat(int on);
  77#endif
  78
  79/* atari specific timer functions (in time.c) */
  80extern void atari_sched_init(void);
  81extern int atari_mste_hwclk (int, struct rtc_time *);
  82extern 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
  92static 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
 127int __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. */
 148static 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
 187early_param("switches", atari_switches_setup);
 188
 189
 190    /*
 191     *  Setup the Atari configuration info
 192     */
 193
 194void __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#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
 209        mach_beep          = atari_mksound;
 210#endif
 211#ifdef CONFIG_HEARTBEAT
 212        mach_heartbeat = atari_heartbeat;
 213#endif
 214
 215        /* Set switches as requested by the user */
 216        if (atari_switches & ATARI_SWITCH_IKBD)
 217                acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
 218        if (atari_switches & ATARI_SWITCH_MIDI)
 219                acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
 220        if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
 221                sound_ym.rd_data_reg_sel = 14;
 222                sound_ym.wd_data = sound_ym.rd_data_reg_sel |
 223                                   ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
 224                                   ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
 225        }
 226
 227        /* ++bjoern:
 228         * Determine hardware present
 229         */
 230
 231        pr_info("Atari hardware found:");
 232        if (MACH_IS_MEDUSA) {
 233                /* There's no Atari video hardware on the Medusa, but all the
 234                 * addresses below generate a DTACK so no bus error occurs! */
 235        } else if (hwreg_present(f030_xreg)) {
 236                ATARIHW_SET(VIDEL_SHIFTER);
 237                pr_cont(" VIDEL");
 238                /* This is a temporary hack: If there is Falcon video
 239                 * hardware, we assume that the ST-DMA serves SCSI instead of
 240                 * ACSI. In the future, there should be a better method for
 241                 * this...
 242                 */
 243                ATARIHW_SET(ST_SCSI);
 244                pr_cont(" STDMA-SCSI");
 245        } else if (hwreg_present(tt_palette)) {
 246                ATARIHW_SET(TT_SHIFTER);
 247                pr_cont(" TT_SHIFTER");
 248        } else if (hwreg_present(&shifter_st.bas_hi)) {
 249                if (hwreg_present(&shifter_st.bas_lo) &&
 250                    (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) {
 251                        ATARIHW_SET(EXTD_SHIFTER);
 252                        pr_cont(" EXTD_SHIFTER");
 253                } else {
 254                        ATARIHW_SET(STND_SHIFTER);
 255                        pr_cont(" STND_SHIFTER");
 256                }
 257        }
 258        if (hwreg_present(&st_mfp.par_dt_reg)) {
 259                ATARIHW_SET(ST_MFP);
 260                pr_cont(" ST_MFP");
 261        }
 262        if (hwreg_present(&tt_mfp.par_dt_reg)) {
 263                ATARIHW_SET(TT_MFP);
 264                pr_cont(" TT_MFP");
 265        }
 266        if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 267                ATARIHW_SET(SCSI_DMA);
 268                pr_cont(" TT_SCSI_DMA");
 269        }
 270        /*
 271         * The ST-DMA address registers aren't readable
 272         * on all Medusas, so the test below may fail
 273         */
 274        if (MACH_IS_MEDUSA ||
 275            (hwreg_present(&st_dma.dma_vhi) &&
 276             (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
 277             st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
 278             (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
 279             st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
 280                ATARIHW_SET(EXTD_DMA);
 281                pr_cont(" EXTD_DMA");
 282        }
 283        if (hwreg_present(&tt_scsi.scsi_data)) {
 284                ATARIHW_SET(TT_SCSI);
 285                pr_cont(" TT_SCSI");
 286        }
 287        if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 288                ATARIHW_SET(YM_2149);
 289                pr_cont(" YM2149");
 290        }
 291        if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 292                ATARIHW_SET(PCM_8BIT);
 293                pr_cont(" PCM");
 294        }
 295        if (hwreg_present(&falcon_codec.unused5)) {
 296                ATARIHW_SET(CODEC);
 297                pr_cont(" CODEC");
 298        }
 299        if (hwreg_present(&dsp56k_host_interface.icr)) {
 300                ATARIHW_SET(DSP56K);
 301                pr_cont(" DSP56K");
 302        }
 303        if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
 304#if 0
 305            /* This test sucks! Who knows some better? */
 306            (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
 307            (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
 308#else
 309            !MACH_IS_MEDUSA
 310#endif
 311            ) {
 312                ATARIHW_SET(SCC_DMA);
 313                pr_cont(" SCC_DMA");
 314        }
 315        if (scc_test(&atari_scc.cha_a_ctrl)) {
 316                ATARIHW_SET(SCC);
 317                pr_cont(" SCC");
 318        }
 319        if (scc_test(&st_escc.cha_b_ctrl)) {
 320                ATARIHW_SET(ST_ESCC);
 321                pr_cont(" ST_ESCC");
 322        }
 323        if (hwreg_present(&tt_scu.sys_mask)) {
 324                ATARIHW_SET(SCU);
 325                /* Assume a VME bus if there's a SCU */
 326                ATARIHW_SET(VME);
 327                pr_cont(" VME SCU");
 328        }
 329        if (hwreg_present((void *)(0xffff9210))) {
 330                ATARIHW_SET(ANALOG_JOY);
 331                pr_cont(" ANALOG_JOY");
 332        }
 333        if (hwreg_present(blitter.halftone)) {
 334                ATARIHW_SET(BLITTER);
 335                pr_cont(" BLITTER");
 336        }
 337        if (hwreg_present((void *)0xfff00039)) {
 338                ATARIHW_SET(IDE);
 339                pr_cont(" IDE");
 340        }
 341#if 1 /* This maybe wrong */
 342        if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
 343            hwreg_present(&tt_microwire.mask) &&
 344            (tt_microwire.mask = 0x7ff,
 345             udelay(1),
 346             tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
 347             udelay(1),
 348             tt_microwire.data != 0)) {
 349                ATARIHW_SET(MICROWIRE);
 350                while (tt_microwire.mask != 0x7ff)
 351                        ;
 352                pr_cont(" MICROWIRE");
 353        }
 354#endif
 355        if (hwreg_present(&tt_rtc.regsel)) {
 356                ATARIHW_SET(TT_CLK);
 357                pr_cont(" TT_CLK");
 358                mach_hwclk = atari_tt_hwclk;
 359        }
 360        if (hwreg_present(&mste_rtc.sec_ones)) {
 361                ATARIHW_SET(MSTE_CLK);
 362                pr_cont(" MSTE_CLK");
 363                mach_hwclk = atari_mste_hwclk;
 364        }
 365        if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
 366            hwreg_write(&dma_wd.fdc_speed, 0)) {
 367                ATARIHW_SET(FDCSPEED);
 368                pr_cont(" FDC_SPEED");
 369        }
 370        if (!ATARIHW_PRESENT(ST_SCSI)) {
 371                ATARIHW_SET(ACSI);
 372                pr_cont(" ACSI");
 373        }
 374        pr_cont("\n");
 375
 376        if (CPU_IS_040_OR_060)
 377                /* Now it seems to be safe to turn of the tt0 transparent
 378                 * translation (the one that must not be turned off in
 379                 * head.S...)
 380                 */
 381                asm volatile ("\n"
 382                        "       moveq   #0,%%d0\n"
 383                        "       .chip   68040\n"
 384                        "       movec   %%d0,%%itt0\n"
 385                        "       movec   %%d0,%%dtt0\n"
 386                        "       .chip   68k"
 387                        : /* no outputs */
 388                        : /* no inputs */
 389                        : "d0");
 390
 391        /* allocator for memory that must reside in st-ram */
 392        atari_stram_init();
 393
 394        /* Set up a mapping for the VMEbus address region:
 395         *
 396         * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
 397         * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
 398         * 0xfe000000 virt., because this can be done with a single
 399         * transparent translation. On the 68040, lots of often unused
 400         * page tables would be needed otherwise. On a MegaSTE or similar,
 401         * the highest byte is stripped off by hardware due to the 24 bit
 402         * design of the bus.
 403         */
 404
 405        if (CPU_IS_020_OR_030) {
 406                unsigned long tt1_val;
 407                tt1_val = 0xfe008543;   /* Translate 0xfexxxxxx, enable, cache
 408                                         * inhibit, read and write, FDC mask = 3,
 409                                         * FDC val = 4 -> Supervisor only */
 410                asm volatile ("\n"
 411                        "       .chip   68030\n"
 412                        "       pmove   %0,%/tt1\n"
 413                        "       .chip   68k"
 414                        : : "m" (tt1_val));
 415        } else {
 416                asm volatile ("\n"
 417                        "       .chip   68040\n"
 418                        "       movec   %0,%%itt1\n"
 419                        "       movec   %0,%%dtt1\n"
 420                        "       .chip   68k"
 421                        :
 422                        : "d" (0xfe00a040));    /* Translate 0xfexxxxxx, enable,
 423                                                 * supervisor only, non-cacheable/
 424                                                 * serialized, writable */
 425
 426        }
 427
 428        /* Fetch tos version at Physical 2 */
 429        /*
 430         * We my not be able to access this address if the kernel is
 431         * loaded to st ram, since the first page is unmapped.  On the
 432         * Medusa this is always the case and there is nothing we can do
 433         * about this, so we just assume the smaller offset.  For the TT
 434         * we use the fact that in head.S we have set up a mapping
 435         * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
 436         * in the last 16MB of the address space.
 437         */
 438        tos_version = (MACH_IS_MEDUSA) ?
 439                        0xfff : *(unsigned short *)0xff000002;
 440        atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
 441}
 442
 443#ifdef CONFIG_HEARTBEAT
 444static void atari_heartbeat(int on)
 445{
 446        unsigned char tmp;
 447        unsigned long flags;
 448
 449        if (atari_dont_touch_floppy_select)
 450                return;
 451
 452        local_irq_save(flags);
 453        sound_ym.rd_data_reg_sel = 14;  /* Select PSG Port A */
 454        tmp = sound_ym.rd_data_reg_sel;
 455        sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
 456        local_irq_restore(flags);
 457}
 458#endif
 459
 460/* ++roman:
 461 *
 462 * This function does a reset on machines that lack the ability to
 463 * assert the processor's _RESET signal somehow via hardware. It is
 464 * based on the fact that you can find the initial SP and PC values
 465 * after a reset at physical addresses 0 and 4. This works pretty well
 466 * for Atari machines, since the lowest 8 bytes of physical memory are
 467 * really ROM (mapped by hardware). For other 680x0 machines: don't
 468 * know if it works...
 469 *
 470 * To get the values at addresses 0 and 4, the MMU better is turned
 471 * off first. After that, we have to jump into physical address space
 472 * (the PC before the pmove statement points to the virtual address of
 473 * the code). Getting that physical address is not hard, but the code
 474 * becomes a bit complex since I've tried to ensure that the jump
 475 * statement after the pmove is in the cache already (otherwise the
 476 * processor can't fetch it!). For that, the code first jumps to the
 477 * jump statement with the (virtual) address of the pmove section in
 478 * an address register . The jump statement is surely in the cache
 479 * now. After that, that physical address of the reset code is loaded
 480 * into the same address register, pmove is done and the same jump
 481 * statements goes to the reset code. Since there are not many
 482 * statements between the two jumps, I hope it stays in the cache.
 483 *
 484 * The C code makes heavy use of the GCC features that you can get the
 485 * address of a C label. No hope to compile this with another compiler
 486 * than GCC!
 487 */
 488
 489/* ++andreas: no need for complicated code, just depend on prefetch */
 490
 491static void atari_reset(void)
 492{
 493        long tc_val = 0;
 494        long reset_addr;
 495
 496        /*
 497         * On the Medusa, phys. 0x4 may contain garbage because it's no
 498         * ROM.  See above for explanation why we cannot use PTOV(4).
 499         */
 500        reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
 501                     *(unsigned long *) 0xff000004;
 502
 503        /* reset ACIA for switch off OverScan, if it's active */
 504        if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
 505                acia.key_ctrl = ACIA_RESET;
 506        if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
 507                acia.mid_ctrl = ACIA_RESET;
 508
 509        /* processor independent: turn off interrupts and reset the VBR;
 510         * the caches must be left enabled, else prefetching the final jump
 511         * instruction doesn't work.
 512         */
 513        local_irq_disable();
 514        asm volatile ("movec    %0,%%vbr"
 515                        : : "d" (0));
 516
 517        if (CPU_IS_040_OR_060) {
 518                unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 519                if (CPU_IS_060) {
 520                        /* 68060: clear PCR to turn off superscalar operation */
 521                        asm volatile ("\n"
 522                                "       .chip 68060\n"
 523                                "       movec %0,%%pcr\n"
 524                                "       .chip 68k"
 525                                : : "d" (0));
 526                }
 527
 528                asm volatile ("\n"
 529                        "       move.l  %0,%%d0\n"
 530                        "       and.l   #0xff000000,%%d0\n"
 531                        "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 532                        "       .chip   68040\n"
 533                        "       movec   %%d0,%%itt0\n"
 534                        "       movec   %%d0,%%dtt0\n"
 535                        "       .chip   68k\n"
 536                        "       jmp     %0@"
 537                        : : "a" (jmp_addr040)
 538                        : "d0");
 539        jmp_addr_label040:
 540                asm volatile ("\n"
 541                        "       moveq   #0,%%d0\n"
 542                        "       nop\n"
 543                        "       .chip   68040\n"
 544                        "       cinva   %%bc\n"
 545                        "       nop\n"
 546                        "       pflusha\n"
 547                        "       nop\n"
 548                        "       movec   %%d0,%%tc\n"
 549                        "       nop\n"
 550                        /* the following setup of transparent translations is needed on the
 551                         * Afterburner040 to successfully reboot. Other machines shouldn't
 552                         * care about a different tt regs setup, they also didn't care in
 553                         * the past that the regs weren't turned off. */
 554                        "       move.l  #0xffc000,%%d0\n" /* whole insn space cacheable */
 555                        "       movec   %%d0,%%itt0\n"
 556                        "       movec   %%d0,%%itt1\n"
 557                        "       or.w    #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
 558                        "       movec   %%d0,%%dtt0\n"
 559                        "       movec   %%d0,%%dtt1\n"
 560                        "       .chip   68k\n"
 561                        "       jmp     %0@"
 562                        : /* no outputs */
 563                        : "a" (reset_addr)
 564                        : "d0");
 565        } else
 566                asm volatile ("\n"
 567                        "       pmove   %0,%%tc\n"
 568                        "       jmp     %1@"
 569                        : /* no outputs */
 570                        : "m" (tc_val), "a" (reset_addr));
 571}
 572
 573
 574static void atari_get_model(char *model)
 575{
 576        strcpy(model, "Atari ");
 577        switch (atari_mch_cookie >> 16) {
 578        case ATARI_MCH_ST:
 579                if (ATARIHW_PRESENT(MSTE_CLK))
 580                        strcat(model, "Mega ST");
 581                else
 582                        strcat(model, "ST");
 583                break;
 584        case ATARI_MCH_STE:
 585                if (MACH_IS_MSTE)
 586                        strcat(model, "Mega STE");
 587                else
 588                        strcat(model, "STE");
 589                break;
 590        case ATARI_MCH_TT:
 591                if (MACH_IS_MEDUSA)
 592                        /* Medusa has TT _MCH cookie */
 593                        strcat(model, "Medusa");
 594                else
 595                        strcat(model, "TT");
 596                break;
 597        case ATARI_MCH_FALCON:
 598                strcat(model, "Falcon");
 599                if (MACH_IS_AB40)
 600                        strcat(model, " (with Afterburner040)");
 601                break;
 602        default:
 603                sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
 604                        atari_mch_cookie);
 605                break;
 606        }
 607}
 608
 609
 610static void atari_get_hardware_list(struct seq_file *m)
 611{
 612        int i;
 613
 614        for (i = 0; i < m68k_num_memory; i++)
 615                seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
 616                                m68k_memory[i].size >> 20, m68k_memory[i].addr,
 617                                (m68k_memory[i].addr & 0xff000000 ?
 618                                 "alternate RAM" : "ST-RAM"));
 619
 620#define ATARIHW_ANNOUNCE(name, str)                     \
 621        if (ATARIHW_PRESENT(name))                      \
 622                seq_printf(m, "\t%s\n", str)
 623
 624        seq_puts(m, "Detected hardware:\n");
 625        ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
 626        ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
 627        ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
 628        ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
 629        ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
 630        ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
 631        ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
 632        ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
 633        ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
 634        ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
 635        ATARIHW_ANNOUNCE(IDE, "IDE Interface");
 636        ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
 637        ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
 638        ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
 639        ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
 640        ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
 641        ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
 642        ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
 643        ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
 644        ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
 645        ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
 646        ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
 647        ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
 648        ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
 649        ATARIHW_ANNOUNCE(SCU, "System Control Unit");
 650        ATARIHW_ANNOUNCE(BLITTER, "Blitter");
 651        ATARIHW_ANNOUNCE(VME, "VME Bus");
 652        ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
 653}
 654
 655/*
 656 * MSch: initial platform device support for Atari,
 657 * required for EtherNAT/EtherNEC/NetUSBee drivers
 658 */
 659
 660#if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
 661static void isp1160_delay(struct device *dev, int delay)
 662{
 663        ndelay(delay);
 664}
 665#endif
 666
 667#ifdef CONFIG_ATARI_ETHERNAT
 668/*
 669 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
 670 */
 671
 672#define ATARI_ETHERNAT_IRQ              140
 673
 674static struct resource smc91x_resources[] = {
 675        [0] = {
 676                .name   = "smc91x-regs",
 677                .start  = ATARI_ETHERNAT_PHYS_ADDR,
 678                .end    = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
 679                .flags  = IORESOURCE_MEM,
 680        },
 681        [1] = {
 682                .name   = "smc91x-irq",
 683                .start  = ATARI_ETHERNAT_IRQ,
 684                .end    = ATARI_ETHERNAT_IRQ,
 685                .flags  = IORESOURCE_IRQ,
 686        },
 687};
 688
 689static struct platform_device smc91x_device = {
 690        .name           = "smc91x",
 691        .id             = -1,
 692        .num_resources  = ARRAY_SIZE(smc91x_resources),
 693        .resource       = smc91x_resources,
 694};
 695
 696/*
 697 * ISP 1160 - using the isp116x-hcd module
 698 */
 699
 700#define ATARI_USB_PHYS_ADDR     0x80000012
 701#define ATARI_USB_IRQ           139
 702
 703static struct resource isp1160_resources[] = {
 704        [0] = {
 705                .name   = "isp1160-data",
 706                .start  = ATARI_USB_PHYS_ADDR,
 707                .end    = ATARI_USB_PHYS_ADDR + 0x1,
 708                .flags  = IORESOURCE_MEM,
 709        },
 710        [1] = {
 711                .name   = "isp1160-regs",
 712                .start  = ATARI_USB_PHYS_ADDR + 0x4,
 713                .end    = ATARI_USB_PHYS_ADDR + 0x5,
 714                .flags  = IORESOURCE_MEM,
 715        },
 716        [2] = {
 717                .name   = "isp1160-irq",
 718                .start  = ATARI_USB_IRQ,
 719                .end    = ATARI_USB_IRQ,
 720                .flags  = IORESOURCE_IRQ,
 721        },
 722};
 723
 724/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 725static struct isp116x_platform_data isp1160_platform_data = {
 726        /* Enable internal resistors on downstream ports */
 727        .sel15Kres              = 1,
 728        /* On-chip overcurrent protection */
 729        .oc_enable              = 1,
 730        /* INT output polarity */
 731        .int_act_high           = 1,
 732        /* INT edge or level triggered */
 733        .int_edge_triggered     = 0,
 734
 735        /* WAKEUP pin connected - NOT SUPPORTED  */
 736        /* .remote_wakeup_connected = 0, */
 737        /* Wakeup by devices on usb bus enabled */
 738        .remote_wakeup_enable   = 0,
 739        .delay                  = isp1160_delay,
 740};
 741
 742static struct platform_device isp1160_device = {
 743        .name           = "isp116x-hcd",
 744        .id             = 0,
 745        .num_resources  = ARRAY_SIZE(isp1160_resources),
 746        .resource       = isp1160_resources,
 747        .dev                    = {
 748                .platform_data  = &isp1160_platform_data,
 749        },
 750};
 751
 752static struct platform_device *atari_ethernat_devices[] __initdata = {
 753        &smc91x_device,
 754        &isp1160_device
 755};
 756#endif /* CONFIG_ATARI_ETHERNAT */
 757
 758#ifdef CONFIG_ATARI_ETHERNEC
 759/*
 760 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
 761 * handled by ne.c driver
 762 */
 763
 764#define ATARI_ETHERNEC_PHYS_ADDR        0xfffa0000
 765#define ATARI_ETHERNEC_BASE             0x300
 766#define ATARI_ETHERNEC_IRQ              IRQ_MFP_TIMER1
 767
 768static struct resource rtl8019_resources[] = {
 769        [0] = {
 770                .name   = "rtl8019-regs",
 771                .start  = ATARI_ETHERNEC_BASE,
 772                .end    = ATARI_ETHERNEC_BASE + 0x20 - 1,
 773                .flags  = IORESOURCE_IO,
 774        },
 775        [1] = {
 776                .name   = "rtl8019-irq",
 777                .start  = ATARI_ETHERNEC_IRQ,
 778                .end    = ATARI_ETHERNEC_IRQ,
 779                .flags  = IORESOURCE_IRQ,
 780        },
 781};
 782
 783static struct platform_device rtl8019_device = {
 784        .name           = "ne",
 785        .id             = -1,
 786        .num_resources  = ARRAY_SIZE(rtl8019_resources),
 787        .resource       = rtl8019_resources,
 788};
 789
 790/*
 791 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
 792 */
 793
 794#define ATARI_NETUSBEE_PHYS_ADDR        0xfffa8000
 795#define ATARI_NETUSBEE_BASE             0x340
 796#define ATARI_NETUSBEE_IRQ              IRQ_MFP_TIMER2
 797
 798static struct resource netusbee_resources[] = {
 799        [0] = {
 800                .name   = "isp1160-data",
 801                .start  = ATARI_NETUSBEE_BASE,
 802                .end    = ATARI_NETUSBEE_BASE + 0x1,
 803                .flags  = IORESOURCE_MEM,
 804        },
 805        [1] = {
 806                .name   = "isp1160-regs",
 807                .start  = ATARI_NETUSBEE_BASE + 0x20,
 808                .end    = ATARI_NETUSBEE_BASE + 0x21,
 809                .flags  = IORESOURCE_MEM,
 810        },
 811        [2] = {
 812                .name   = "isp1160-irq",
 813                .start  = ATARI_NETUSBEE_IRQ,
 814                .end    = ATARI_NETUSBEE_IRQ,
 815                .flags  = IORESOURCE_IRQ,
 816        },
 817};
 818
 819/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
 820static struct isp116x_platform_data netusbee_platform_data = {
 821        /* Enable internal resistors on downstream ports */
 822        .sel15Kres              = 1,
 823        /* On-chip overcurrent protection */
 824        .oc_enable              = 1,
 825        /* INT output polarity */
 826        .int_act_high           = 1,
 827        /* INT edge or level triggered */
 828        .int_edge_triggered     = 0,
 829
 830        /* WAKEUP pin connected - NOT SUPPORTED  */
 831        /* .remote_wakeup_connected = 0, */
 832        /* Wakeup by devices on usb bus enabled */
 833        .remote_wakeup_enable   = 0,
 834        .delay                  = isp1160_delay,
 835};
 836
 837static struct platform_device netusbee_device = {
 838        .name           = "isp116x-hcd",
 839        .id             = 1,
 840        .num_resources  = ARRAY_SIZE(netusbee_resources),
 841        .resource       = netusbee_resources,
 842        .dev                    = {
 843                .platform_data  = &netusbee_platform_data,
 844        },
 845};
 846
 847static struct platform_device *atari_netusbee_devices[] __initdata = {
 848        &rtl8019_device,
 849        &netusbee_device
 850};
 851#endif /* CONFIG_ATARI_ETHERNEC */
 852
 853#if IS_ENABLED(CONFIG_ATARI_SCSI)
 854static const struct resource atari_scsi_st_rsrc[] __initconst = {
 855        {
 856                .flags = IORESOURCE_IRQ,
 857                .start = IRQ_MFP_FSCSI,
 858                .end   = IRQ_MFP_FSCSI,
 859        },
 860};
 861
 862static const struct resource atari_scsi_tt_rsrc[] __initconst = {
 863        {
 864                .flags = IORESOURCE_IRQ,
 865                .start = IRQ_TT_MFP_SCSI,
 866                .end   = IRQ_TT_MFP_SCSI,
 867        },
 868};
 869#endif
 870
 871/*
 872 * Falcon IDE interface
 873 */
 874
 875#define FALCON_IDE_BASE 0xfff00000
 876
 877static const struct resource atari_falconide_rsrc[] __initconst = {
 878        DEFINE_RES_MEM(FALCON_IDE_BASE, 0x38),
 879        DEFINE_RES_MEM(FALCON_IDE_BASE + 0x38, 2),
 880};
 881
 882int __init atari_platform_init(void)
 883{
 884        struct platform_device *pdev;
 885        int rv = 0;
 886
 887        if (!MACH_IS_ATARI)
 888                return -ENODEV;
 889
 890#ifdef CONFIG_ATARI_ETHERNAT
 891        {
 892                unsigned char *enatc_virt;
 893                enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
 894                if (hwreg_present(enatc_virt)) {
 895                        rv = platform_add_devices(atari_ethernat_devices,
 896                                                ARRAY_SIZE(atari_ethernat_devices));
 897                }
 898                iounmap(enatc_virt);
 899        }
 900#endif
 901
 902#ifdef CONFIG_ATARI_ETHERNEC
 903        {
 904                int error;
 905                unsigned char *enec_virt;
 906                enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
 907                if (hwreg_present(enec_virt)) {
 908                        error = platform_add_devices(atari_netusbee_devices,
 909                                                ARRAY_SIZE(atari_netusbee_devices));
 910                        if (error && !rv)
 911                                rv = error;
 912                }
 913                iounmap(enec_virt);
 914        }
 915#endif
 916
 917#if IS_ENABLED(CONFIG_ATARI_SCSI)
 918        if (ATARIHW_PRESENT(ST_SCSI))
 919                platform_device_register_simple("atari_scsi", -1,
 920                        atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
 921        else if (ATARIHW_PRESENT(TT_SCSI))
 922                platform_device_register_simple("atari_scsi", -1,
 923                        atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
 924#endif
 925
 926        if (ATARIHW_PRESENT(IDE)) {
 927                pdev = platform_device_register_simple("atari-falcon-ide", -1,
 928                        atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc));
 929                if (IS_ERR(pdev))
 930                        rv = PTR_ERR(pdev);
 931        }
 932
 933        return rv;
 934}
 935
 936arch_initcall(atari_platform_init);
 937