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/console.h> 30#include <linux/init.h> 31#include <linux/delay.h> 32#include <linux/ioport.h> 33#include <linux/vt_kern.h> 34 35#include <asm/bootinfo.h> 36#include <asm/setup.h> 37#include <asm/atarihw.h> 38#include <asm/atariints.h> 39#include <asm/atari_stram.h> 40#include <asm/system.h> 41#include <asm/machdep.h> 42#include <asm/hwtest.h> 43#include <asm/io.h> 44 45u_long atari_mch_cookie; 46u_long atari_mch_type; 47struct atari_hw_present atari_hw_present; 48u_long atari_switches; 49int atari_dont_touch_floppy_select; 50int atari_rtc_year_offset; 51 52/* local function prototypes */ 53static void atari_reset(void); 54static void atari_get_model(char *model); 55static int atari_get_hardware_list(char *buffer); 56 57/* atari specific irq functions */ 58extern void atari_init_IRQ (void); 59extern void atari_mksound(unsigned int count, unsigned int ticks); 60#ifdef CONFIG_HEARTBEAT 61static void atari_heartbeat(int on); 62#endif 63 64/* atari specific timer functions (in time.c) */ 65extern void atari_sched_init(irq_handler_t); 66extern unsigned long atari_gettimeoffset (void); 67extern int atari_mste_hwclk (int, struct rtc_time *); 68extern int atari_tt_hwclk (int, struct rtc_time *); 69extern int atari_mste_set_clock_mmss (unsigned long); 70extern int atari_tt_set_clock_mmss (unsigned long); 71 72 73/* ++roman: This is a more elaborate test for an SCC chip, since the plain 74 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 75 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 76 * resides generate DTACK without the chip, too. 77 * The method is to write values into the interrupt vector register, that 78 * should be readable without trouble (from channel A!). 79 */ 80 81static int __init scc_test(volatile char *ctla) 82{ 83 if (!hwreg_present(ctla)) 84 return 0; 85 MFPDELAY(); 86 87 *ctla = 2; 88 MFPDELAY(); 89 *ctla = 0x40; 90 MFPDELAY(); 91 92 *ctla = 2; 93 MFPDELAY(); 94 if (*ctla != 0x40) 95 return 0; 96 MFPDELAY(); 97 98 *ctla = 2; 99 MFPDELAY(); 100 *ctla = 0x60; 101 MFPDELAY(); 102 103 *ctla = 2; 104 MFPDELAY(); 105 if (*ctla != 0x60) 106 return 0; 107 108 return 1; 109} 110 111 112 /* 113 * Parse an Atari-specific record in the bootinfo 114 */ 115 116int __init atari_parse_bootinfo(const struct bi_record *record) 117{ 118 int unknown = 0; 119 const u_long *data = record->data; 120 121 switch (record->tag) { 122 case BI_ATARI_MCH_COOKIE: 123 atari_mch_cookie = *data; 124 break; 125 case BI_ATARI_MCH_TYPE: 126 atari_mch_type = *data; 127 break; 128 default: 129 unknown = 1; 130 break; 131 } 132 return unknown; 133} 134 135 136/* Parse the Atari-specific switches= option. */ 137static int __init atari_switches_setup(char *str) 138{ 139 char switches[strlen(str) + 1]; 140 char *p; 141 int ovsc_shift; 142 char *args = switches; 143 144 if (!MACH_IS_ATARI) 145 return 0; 146 147 /* copy string to local array, strsep works destructively... */ 148 strcpy(switches, str); 149 atari_switches = 0; 150 151 /* parse the options */ 152 while ((p = strsep(&args, ",")) != NULL) { 153 if (!*p) 154 continue; 155 ovsc_shift = 0; 156 if (strncmp(p, "ov_", 3) == 0) { 157 p += 3; 158 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 159 } 160 161 if (strcmp(p, "ikbd") == 0) { 162 /* RTS line of IKBD ACIA */ 163 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 164 } else if (strcmp(p, "midi") == 0) { 165 /* RTS line of MIDI ACIA */ 166 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 167 } else if (strcmp(p, "snd6") == 0) { 168 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 169 } else if (strcmp(p, "snd7") == 0) { 170 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 171 } 172 } 173 return 0; 174} 175 176early_param("switches", atari_switches_setup); 177 178 179 /* 180 * Setup the Atari configuration info 181 */ 182 183void __init config_atari(void) 184{ 185 unsigned short tos_version; 186 187 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 188 189 /* Change size of I/O space from 64KB to 4GB. */ 190 ioport_resource.end = 0xFFFFFFFF; 191 192 mach_sched_init = atari_sched_init; 193 mach_init_IRQ = atari_init_IRQ; 194 mach_get_model = atari_get_model; 195 mach_get_hardware_list = atari_get_hardware_list; 196 mach_gettimeoffset = atari_gettimeoffset; 197 mach_reset = atari_reset; 198 mach_max_dma_address = 0xffffff; 199#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 200 mach_beep = atari_mksound; 201#endif 202#ifdef CONFIG_HEARTBEAT 203 mach_heartbeat = atari_heartbeat; 204#endif 205 206 /* Set switches as requested by the user */ 207 if (atari_switches & ATARI_SWITCH_IKBD) 208 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 209 if (atari_switches & ATARI_SWITCH_MIDI) 210 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 211 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 212 sound_ym.rd_data_reg_sel = 14; 213 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 214 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 215 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 216 } 217 218 /* ++bjoern: 219 * Determine hardware present 220 */ 221 222 printk("Atari hardware found: "); 223 if (MACH_IS_MEDUSA || MACH_IS_HADES) { 224 /* There's no Atari video hardware on the Medusa, but all the 225 * addresses below generate a DTACK so no bus error occurs! */ 226 } else if (hwreg_present(f030_xreg)) { 227 ATARIHW_SET(VIDEL_SHIFTER); 228 printk("VIDEL "); 229 /* This is a temporary hack: If there is Falcon video 230 * hardware, we assume that the ST-DMA serves SCSI instead of 231 * ACSI. In the future, there should be a better method for 232 * this... 233 */ 234 ATARIHW_SET(ST_SCSI); 235 printk("STDMA-SCSI "); 236 } else if (hwreg_present(tt_palette)) { 237 ATARIHW_SET(TT_SHIFTER); 238 printk("TT_SHIFTER "); 239 } else if (hwreg_present(&shifter.bas_hi)) { 240 if (hwreg_present(&shifter.bas_lo) && 241 (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { 242 ATARIHW_SET(EXTD_SHIFTER); 243 printk("EXTD_SHIFTER "); 244 } else { 245 ATARIHW_SET(STND_SHIFTER); 246 printk("STND_SHIFTER "); 247 } 248 } 249 if (hwreg_present(&mfp.par_dt_reg)) { 250 ATARIHW_SET(ST_MFP); 251 printk("ST_MFP "); 252 } 253 if (hwreg_present(&tt_mfp.par_dt_reg)) { 254 ATARIHW_SET(TT_MFP); 255 printk("TT_MFP "); 256 } 257 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 258 ATARIHW_SET(SCSI_DMA); 259 printk("TT_SCSI_DMA "); 260 } 261 if (!MACH_IS_HADES && hwreg_present(&st_dma.dma_hi)) { 262 ATARIHW_SET(STND_DMA); 263 printk("STND_DMA "); 264 } 265 /* 266 * The ST-DMA address registers aren't readable 267 * on all Medusas, so the test below may fail 268 */ 269 if (MACH_IS_MEDUSA || 270 (hwreg_present(&st_dma.dma_vhi) && 271 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 272 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 273 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 274 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 275 ATARIHW_SET(EXTD_DMA); 276 printk("EXTD_DMA "); 277 } 278 if (hwreg_present(&tt_scsi.scsi_data)) { 279 ATARIHW_SET(TT_SCSI); 280 printk("TT_SCSI "); 281 } 282 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 283 ATARIHW_SET(YM_2149); 284 printk("YM2149 "); 285 } 286 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 287 hwreg_present(&tt_dmasnd.ctrl)) { 288 ATARIHW_SET(PCM_8BIT); 289 printk("PCM "); 290 } 291 if (!MACH_IS_HADES && hwreg_present(&falcon_codec.unused5)) { 292 ATARIHW_SET(CODEC); 293 printk("CODEC "); 294 } 295 if (hwreg_present(&dsp56k_host_interface.icr)) { 296 ATARIHW_SET(DSP56K); 297 printk("DSP56K "); 298 } 299 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 300 !MACH_IS_MEDUSA && !MACH_IS_HADES 301 ) { 302 ATARIHW_SET(SCC_DMA); 303 printk("SCC_DMA "); 304 } 305 if (scc_test(&scc.cha_a_ctrl)) { 306 ATARIHW_SET(SCC); 307 printk("SCC "); 308 } 309 if (scc_test(&st_escc.cha_b_ctrl)) { 310 ATARIHW_SET(ST_ESCC); 311 printk("ST_ESCC "); 312 } 313 if (MACH_IS_HADES) { 314 ATARIHW_SET(VME); 315 printk("VME "); 316 } else if (hwreg_present(&tt_scu.sys_mask)) { 317 ATARIHW_SET(SCU); 318 /* Assume a VME bus if there's a SCU */ 319 ATARIHW_SET(VME); 320 printk("VME SCU "); 321 } 322 if (hwreg_present((void *)(0xffff9210))) { 323 ATARIHW_SET(ANALOG_JOY); 324 printk("ANALOG_JOY "); 325 } 326 if (!MACH_IS_HADES && hwreg_present(blitter.halftone)) { 327 ATARIHW_SET(BLITTER); 328 printk("BLITTER "); 329 } 330 if (hwreg_present((void *)0xfff00039)) { 331 ATARIHW_SET(IDE); 332 printk("IDE "); 333 } 334 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 335 hwreg_present(&tt_microwire.data) && 336 hwreg_present(&tt_microwire.mask) && 337 (tt_microwire.mask = 0x7ff, 338 udelay(1), 339 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 340 udelay(1), 341 tt_microwire.data != 0)) { 342 ATARIHW_SET(MICROWIRE); 343 while (tt_microwire.mask != 0x7ff) 344 ; 345 printk("MICROWIRE "); 346 } 347 if (hwreg_present(&tt_rtc.regsel)) { 348 ATARIHW_SET(TT_CLK); 349 printk("TT_CLK "); 350 mach_hwclk = atari_tt_hwclk; 351 mach_set_clock_mmss = atari_tt_set_clock_mmss; 352 } 353 if (!MACH_IS_HADES && hwreg_present(&mste_rtc.sec_ones)) { 354 ATARIHW_SET(MSTE_CLK); 355 printk("MSTE_CLK "); 356 mach_hwclk = atari_mste_hwclk; 357 mach_set_clock_mmss = atari_mste_set_clock_mmss; 358 } 359 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 360 hwreg_present(&dma_wd.fdc_speed) && 361 hwreg_write(&dma_wd.fdc_speed, 0)) { 362 ATARIHW_SET(FDCSPEED); 363 printk("FDC_SPEED "); 364 } 365 if (!MACH_IS_HADES && !ATARIHW_PRESENT(ST_SCSI)) { 366 ATARIHW_SET(ACSI); 367 printk("ACSI "); 368 } 369 printk("\n"); 370 371 if (CPU_IS_040_OR_060) 372 /* Now it seems to be safe to turn of the tt0 transparent 373 * translation (the one that must not be turned off in 374 * head.S...) 375 */ 376 asm volatile ("\n" 377 " moveq #0,%%d0\n" 378 " .chip 68040\n" 379 " movec %%d0,%%itt0\n" 380 " movec %%d0,%%dtt0\n" 381 " .chip 68k" 382 : /* no outputs */ 383 : /* no inputs */ 384 : "d0"); 385 386 /* allocator for memory that must reside in st-ram */ 387 atari_stram_init(); 388 389 /* Set up a mapping for the VMEbus address region: 390 * 391 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 392 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 393 * 0xfe000000 virt., because this can be done with a single 394 * transparent translation. On the 68040, lots of often unused 395 * page tables would be needed otherwise. On a MegaSTE or similar, 396 * the highest byte is stripped off by hardware due to the 24 bit 397 * design of the bus. 398 */ 399 400 if (CPU_IS_020_OR_030) { 401 unsigned long tt1_val; 402 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 403 * inhibit, read and write, FDC mask = 3, 404 * FDC val = 4 -> Supervisor only */ 405 asm volatile ("\n" 406 " .chip 68030\n" 407 " pmove %0@,%/tt1\n" 408 " .chip 68k" 409 : : "a" (&tt1_val)); 410 } else { 411 asm volatile ("\n" 412 " .chip 68040\n" 413 " movec %0,%%itt1\n" 414 " movec %0,%%dtt1\n" 415 " .chip 68k" 416 : 417 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 418 * supervisor only, non-cacheable/ 419 * serialized, writable */ 420 421 } 422 423 /* Fetch tos version at Physical 2 */ 424 /* 425 * We my not be able to access this address if the kernel is 426 * loaded to st ram, since the first page is unmapped. On the 427 * Medusa this is always the case and there is nothing we can do 428 * about this, so we just assume the smaller offset. For the TT 429 * we use the fact that in head.S we have set up a mapping 430 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 431 * in the last 16MB of the address space. 432 */ 433 tos_version = (MACH_IS_MEDUSA || MACH_IS_HADES) ? 434 0xfff : *(unsigned short *)0xff000002; 435 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 436} 437 438#ifdef CONFIG_HEARTBEAT 439static void atari_heartbeat(int on) 440{ 441 unsigned char tmp; 442 unsigned long flags; 443 444 if (atari_dont_touch_floppy_select) 445 return; 446 447 local_irq_save(flags); 448 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 449 tmp = sound_ym.rd_data_reg_sel; 450 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 451 local_irq_restore(flags); 452} 453#endif 454 455/* ++roman: 456 * 457 * This function does a reset on machines that lack the ability to 458 * assert the processor's _RESET signal somehow via hardware. It is 459 * based on the fact that you can find the initial SP and PC values 460 * after a reset at physical addresses 0 and 4. This works pretty well 461 * for Atari machines, since the lowest 8 bytes of physical memory are 462 * really ROM (mapped by hardware). For other 680x0 machines: don't 463 * know if it works... 464 * 465 * To get the values at addresses 0 and 4, the MMU better is turned 466 * off first. After that, we have to jump into physical address space 467 * (the PC before the pmove statement points to the virtual address of 468 * the code). Getting that physical address is not hard, but the code 469 * becomes a bit complex since I've tried to ensure that the jump 470 * statement after the pmove is in the cache already (otherwise the 471 * processor can't fetch it!). For that, the code first jumps to the 472 * jump statement with the (virtual) address of the pmove section in 473 * an address register . The jump statement is surely in the cache 474 * now. After that, that physical address of the reset code is loaded 475 * into the same address register, pmove is done and the same jump 476 * statements goes to the reset code. Since there are not many 477 * statements between the two jumps, I hope it stays in the cache. 478 * 479 * The C code makes heavy use of the GCC features that you can get the 480 * address of a C label. No hope to compile this with another compiler 481 * than GCC! 482 */ 483 484/* ++andreas: no need for complicated code, just depend on prefetch */ 485 486static void atari_reset(void) 487{ 488 long tc_val = 0; 489 long reset_addr; 490 491 /* 492 * On the Medusa, phys. 0x4 may contain garbage because it's no 493 * ROM. See above for explanation why we cannot use PTOV(4). 494 */ 495 reset_addr = MACH_IS_HADES ? 0x7fe00030 : 496 MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 497 *(unsigned long *) 0xff000004; 498 499 /* reset ACIA for switch off OverScan, if it's active */ 500 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 501 acia.key_ctrl = ACIA_RESET; 502 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 503 acia.mid_ctrl = ACIA_RESET; 504 505 /* processor independent: turn off interrupts and reset the VBR; 506 * the caches must be left enabled, else prefetching the final jump 507 * instruction doesn't work. 508 */ 509 local_irq_disable(); 510 asm volatile ("movec %0,%%vbr" 511 : : "d" (0)); 512 513 if (CPU_IS_040_OR_060) { 514 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 515 if (CPU_IS_060) { 516 /* 68060: clear PCR to turn off superscalar operation */ 517 asm volatile ("\n" 518 " .chip 68060\n" 519 " movec %0,%%pcr\n" 520 " .chip 68k" 521 : : "d" (0)); 522 } 523 524 asm volatile ("\n" 525 " move.l %0,%%d0\n" 526 " and.l #0xff000000,%%d0\n" 527 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 528 " .chip 68040\n" 529 " movec %%d0,%%itt0\n" 530 " movec %%d0,%%dtt0\n" 531 " .chip 68k\n" 532 " jmp %0@" 533 : : "a" (jmp_addr040) 534 : "d0"); 535 jmp_addr_label040: 536 asm volatile ("\n" 537 " moveq #0,%%d0\n" 538 " nop\n" 539 " .chip 68040\n" 540 " cinva %%bc\n" 541 " nop\n" 542 " pflusha\n" 543 " nop\n" 544 " movec %%d0,%%tc\n" 545 " nop\n" 546 /* the following setup of transparent translations is needed on the 547 * Afterburner040 to successfully reboot. Other machines shouldn't 548 * care about a different tt regs setup, they also didn't care in 549 * the past that the regs weren't turned off. */ 550 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 551 " movec %%d0,%%itt0\n" 552 " movec %%d0,%%itt1\n" 553 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 554 " movec %%d0,%%dtt0\n" 555 " movec %%d0,%%dtt1\n" 556 " .chip 68k\n" 557 " jmp %0@" 558 : /* no outputs */ 559 : "a" (reset_addr) 560 : "d0"); 561 } else 562 asm volatile ("\n" 563 " pmove %0@,%%tc\n" 564 " jmp %1@" 565 : /* no outputs */ 566 : "a" (&tc_val), "a" (reset_addr)); 567} 568 569 570static void atari_get_model(char *model) 571{ 572 strcpy(model, "Atari "); 573 switch (atari_mch_cookie >> 16) { 574 case ATARI_MCH_ST: 575 if (ATARIHW_PRESENT(MSTE_CLK)) 576 strcat(model, "Mega ST"); 577 else 578 strcat(model, "ST"); 579 break; 580 case ATARI_MCH_STE: 581 if (MACH_IS_MSTE) 582 strcat(model, "Mega STE"); 583 else 584 strcat(model, "STE"); 585 break; 586 case ATARI_MCH_TT: 587 if (MACH_IS_MEDUSA) 588 /* Medusa has TT _MCH cookie */ 589 strcat(model, "Medusa"); 590 else if (MACH_IS_HADES) 591 strcat(model, "Hades"); 592 else 593 strcat(model, "TT"); 594 break; 595 case ATARI_MCH_FALCON: 596 strcat(model, "Falcon"); 597 if (MACH_IS_AB40) 598 strcat(model, " (with Afterburner040)"); 599 break; 600 default: 601 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 602 atari_mch_cookie); 603 break; 604 } 605} 606 607 608static int atari_get_hardware_list(char *buffer) 609{ 610 int len = 0, i; 611 612 for (i = 0; i < m68k_num_memory; i++) 613 len += sprintf(buffer+len, "\t%3ld MB at 0x%08lx (%s)\n", 614 m68k_memory[i].size >> 20, m68k_memory[i].addr, 615 (m68k_memory[i].addr & 0xff000000 ? 616 "alternate RAM" : "ST-RAM")); 617 618#define ATARIHW_ANNOUNCE(name, str) \ 619 if (ATARIHW_PRESENT(name)) \ 620 len += sprintf(buffer + len, "\t%s\n", str) 621 622 len += sprintf(buffer + len, "Detected hardware:\n"); 623 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 624 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 625 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 626 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 627 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 628 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 629 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 630 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 631 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 632 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 633 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 634 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 635 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 636 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 637 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 638 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 639 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 640 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 641 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 642 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 643 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 644 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 645 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 646 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 647 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 648 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 649 ATARIHW_ANNOUNCE(VME, "VME Bus"); 650 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 651 652 return len; 653} 654