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(irq_handler_t);
  81extern u32 atari_gettimeoffset(void);
  82extern int atari_mste_hwclk (int, struct rtc_time *);
  83extern int atari_tt_hwclk (int, struct rtc_time *);
  84extern int atari_mste_set_clock_mmss (unsigned long);
  85extern 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
  96static 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
 131int __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. */
 152static 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
 191early_param("switches", atari_switches_setup);
 192
 193
 194    /*
 195     *  Setup the Atari configuration info
 196     */
 197
 198void __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 IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
 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        pr_info("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                pr_cont(" 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                pr_cont(" STDMA-SCSI");
 251        } else if (hwreg_present(tt_palette)) {
 252                ATARIHW_SET(TT_SHIFTER);
 253                pr_cont(" 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                        pr_cont(" EXTD_SHIFTER");
 259                } else {
 260                        ATARIHW_SET(STND_SHIFTER);
 261                        pr_cont(" STND_SHIFTER");
 262                }
 263        }
 264        if (hwreg_present(&st_mfp.par_dt_reg)) {
 265                ATARIHW_SET(ST_MFP);
 266                pr_cont(" ST_MFP");
 267        }
 268        if (hwreg_present(&tt_mfp.par_dt_reg)) {
 269                ATARIHW_SET(TT_MFP);
 270                pr_cont(" TT_MFP");
 271        }
 272        if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
 273                ATARIHW_SET(SCSI_DMA);
 274                pr_cont(" 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                pr_cont(" EXTD_DMA");
 288        }
 289        if (hwreg_present(&tt_scsi.scsi_data)) {
 290                ATARIHW_SET(TT_SCSI);
 291                pr_cont(" TT_SCSI");
 292        }
 293        if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
 294                ATARIHW_SET(YM_2149);
 295                pr_cont(" YM2149");
 296        }
 297        if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
 298                ATARIHW_SET(PCM_8BIT);
 299                pr_cont(" PCM");
 300        }
 301        if (hwreg_present(&falcon_codec.unused5)) {
 302                ATARIHW_SET(CODEC);
 303                pr_cont(" CODEC");
 304        }
 305        if (hwreg_present(&dsp56k_host_interface.icr)) {
 306                ATARIHW_SET(DSP56K);
 307                pr_cont(" 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                pr_cont(" SCC_DMA");
 320        }
 321        if (scc_test(&atari_scc.cha_a_ctrl)) {
 322                ATARIHW_SET(SCC);
 323                pr_cont(" SCC");
 324        }
 325        if (scc_test(&st_escc.cha_b_ctrl)) {
 326                ATARIHW_SET(ST_ESCC);
 327                pr_cont(" 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                pr_cont(" VME SCU");
 334        }
 335        if (hwreg_present((void *)(0xffff9210))) {
 336                ATARIHW_SET(ANALOG_JOY);
 337                pr_cont(" ANALOG_JOY");
 338        }
 339        if (hwreg_present(blitter.halftone)) {
 340                ATARIHW_SET(BLITTER);
 341                pr_cont(" BLITTER");
 342        }
 343        if (hwreg_present((void *)0xfff00039)) {
 344                ATARIHW_SET(IDE);
 345                pr_cont(" 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                pr_cont(" MICROWIRE");
 359        }
 360#endif
 361        if (hwreg_present(&tt_rtc.regsel)) {
 362                ATARIHW_SET(TT_CLK);
 363                pr_cont(" 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                pr_cont(" 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                pr_cont(" FDC_SPEED");
 377        }
 378        if (!ATARIHW_PRESENT(ST_SCSI)) {
 379                ATARIHW_SET(ACSI);
 380                pr_cont(" ACSI");
 381        }
 382        pr_cont("\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
 452static 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
 499static 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
 582static 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
 618static 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_puts(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)
 669static 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
 682static 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
 697static 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
 711static 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 ) */
 733static 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
 750static 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
 760static 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
 776static 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
 791static 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
 806static 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 ) */
 828static 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
 845static 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
 855static struct platform_device *atari_netusbee_devices[] __initdata = {
 856        &rtl8019_device,
 857        &netusbee_device
 858};
 859#endif /* CONFIG_ATARI_ETHERNEC */
 860
 861#if IS_ENABLED(CONFIG_ATARI_SCSI)
 862static const struct resource atari_scsi_st_rsrc[] __initconst = {
 863        {
 864                .flags = IORESOURCE_IRQ,
 865                .start = IRQ_MFP_FSCSI,
 866                .end   = IRQ_MFP_FSCSI,
 867        },
 868};
 869
 870static const struct resource atari_scsi_tt_rsrc[] __initconst = {
 871        {
 872                .flags = IORESOURCE_IRQ,
 873                .start = IRQ_TT_MFP_SCSI,
 874                .end   = IRQ_TT_MFP_SCSI,
 875        },
 876};
 877#endif
 878
 879int __init atari_platform_init(void)
 880{
 881        int rv = 0;
 882
 883        if (!MACH_IS_ATARI)
 884                return -ENODEV;
 885
 886#ifdef CONFIG_ATARI_ETHERNAT
 887        {
 888                unsigned char *enatc_virt;
 889                enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
 890                if (hwreg_present(enatc_virt)) {
 891                        rv = platform_add_devices(atari_ethernat_devices,
 892                                                ARRAY_SIZE(atari_ethernat_devices));
 893                }
 894                iounmap(enatc_virt);
 895        }
 896#endif
 897
 898#ifdef CONFIG_ATARI_ETHERNEC
 899        {
 900                int error;
 901                unsigned char *enec_virt;
 902                enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
 903                if (hwreg_present(enec_virt)) {
 904                        error = platform_add_devices(atari_netusbee_devices,
 905                                                ARRAY_SIZE(atari_netusbee_devices));
 906                        if (error && !rv)
 907                                rv = error;
 908                }
 909                iounmap(enec_virt);
 910        }
 911#endif
 912
 913#if IS_ENABLED(CONFIG_ATARI_SCSI)
 914        if (ATARIHW_PRESENT(ST_SCSI))
 915                platform_device_register_simple("atari_scsi", -1,
 916                        atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
 917        else if (ATARIHW_PRESENT(TT_SCSI))
 918                platform_device_register_simple("atari_scsi", -1,
 919                        atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
 920#endif
 921
 922        return rv;
 923}
 924
 925arch_initcall(atari_platform_init);
 926