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/config.h> 28 #include <linux/types.h> 29 #include <linux/mm.h> 30 #include <linux/console.h> 31 #include <linux/init.h> 32 #include <linux/delay.h> 33 #include <linux/ioport.h> 34 #include <linux/vt_kern.h> 35 36 #include <asm/bootinfo.h> 37 #include <asm/setup.h> 38 #include <asm/atarihw.h> 39 #include <asm/atariints.h> 40 #include <asm/atari_stram.h> 41 #include <asm/system.h> 42 #include <asm/machdep.h> 43 #include <asm/hwtest.h> 44 #include <asm/io.h> 45 46 u_long atari_mch_cookie; 47 u_long atari_mch_type; 48 struct atari_hw_present atari_hw_present; 49 u_long atari_switches; 50 int atari_dont_touch_floppy_select; 51 int atari_rtc_year_offset; 52 53 /* local function prototypes */ 54 static void atari_reset( void ); 55 #ifdef CONFIG_ATARI_FLOPPY 56 extern void atari_floppy_setup(char *, int *); 57 #endif 58 static void atari_get_model(char *model); 59 static int atari_get_hardware_list(char *buffer); 60 61 /* atari specific irq functions */ 62 extern void atari_init_IRQ (void); 63 extern int atari_request_irq (unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), 64 unsigned long flags, const char *devname, void *dev_id); 65 extern void atari_free_irq (unsigned int irq, void *dev_id); 66 extern void atari_enable_irq (unsigned int); 67 extern void atari_disable_irq (unsigned int); 68 extern int show_atari_interrupts (struct seq_file *, void *); 69 extern void atari_mksound( unsigned int count, unsigned int ticks ); 70 #ifdef CONFIG_HEARTBEAT 71 static void atari_heartbeat( int on ); 72 #endif 73 74 /* atari specific timer functions (in time.c) */ 75 extern void atari_sched_init(irqreturn_t (*)(int, void *, struct pt_regs *)); 76 extern unsigned long atari_gettimeoffset (void); 77 extern int atari_mste_hwclk (int, struct rtc_time *); 78 extern int atari_tt_hwclk (int, struct rtc_time *); 79 extern int atari_mste_set_clock_mmss (unsigned long); 80 extern int atari_tt_set_clock_mmss (unsigned long); 81 82 /* atari specific debug functions (in debug.c) */ 83 extern void atari_debug_init(void); 84 85 86 /* I've moved hwreg_present() and hwreg_present_bywrite() out into 87 * mm/hwtest.c, to avoid having multiple copies of the same routine 88 * in the kernel [I wanted them in hp300 and they were already used 89 * in the nubus code. NB: I don't have an Atari so this might (just 90 * conceivably) break something. 91 * I've preserved the #if 0 version of hwreg_present_bywrite() here 92 * for posterity. 93 * -- Peter Maydell <pmaydell@chiark.greenend.org.uk>, 05/1998 94 */ 95 96 #if 0 97 static int __init 98 hwreg_present_bywrite(volatile void *regp, unsigned char val) 99 { 100 int ret; 101 long save_sp, save_vbr; 102 static long tmp_vectors[3] = { [2] = (long)&&after_test }; 103 104 __asm__ __volatile__ 105 ( "movec %/vbr,%2\n\t" /* save vbr value */ 106 "movec %4,%/vbr\n\t" /* set up temporary vectors */ 107 "movel %/sp,%1\n\t" /* save sp */ 108 "moveq #0,%0\n\t" /* assume not present */ 109 "moveb %5,%3@\n\t" /* write the hardware reg */ 110 "cmpb %3@,%5\n\t" /* compare it */ 111 "seq %0" /* comes here only if reg */ 112 /* is present */ 113 : "=d&" (ret), "=r&" (save_sp), "=r&" (save_vbr) 114 : "a" (regp), "r" (tmp_vectors), "d" (val) 115 ); 116 after_test: 117 __asm__ __volatile__ 118 ( "movel %0,%/sp\n\t" /* restore sp */ 119 "movec %1,%/vbr" /* restore vbr */ 120 : : "r" (save_sp), "r" (save_vbr) : "sp" 121 ); 122 123 return( ret ); 124 } 125 #endif 126 127 128 /* ++roman: This is a more elaborate test for an SCC chip, since the plain 129 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 130 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 131 * resides generate DTACK without the chip, too. 132 * The method is to write values into the interrupt vector register, that 133 * should be readable without trouble (from channel A!). 134 */ 135 136 static int __init scc_test( volatile char *ctla ) 137 { 138 if (!hwreg_present( ctla )) 139 return( 0 ); 140 MFPDELAY(); 141 142 *ctla = 2; MFPDELAY(); 143 *ctla = 0x40; MFPDELAY(); 144 145 *ctla = 2; MFPDELAY(); 146 if (*ctla != 0x40) return( 0 ); 147 MFPDELAY(); 148 149 *ctla = 2; MFPDELAY(); 150 *ctla = 0x60; MFPDELAY(); 151 152 *ctla = 2; MFPDELAY(); 153 if (*ctla != 0x60) return( 0 ); 154 155 return( 1 ); 156 } 157 158 159 /* 160 * Parse an Atari-specific record in the bootinfo 161 */ 162 163 int __init atari_parse_bootinfo(const struct bi_record *record) 164 { 165 int unknown = 0; 166 const u_long *data = record->data; 167 168 switch (record->tag) { 169 case BI_ATARI_MCH_COOKIE: 170 atari_mch_cookie = *data; 171 break; 172 case BI_ATARI_MCH_TYPE: 173 atari_mch_type = *data; 174 break; 175 default: 176 unknown = 1; 177 } 178 return(unknown); 179 } 180 181 182 /* Parse the Atari-specific switches= option. */ 183 void __init atari_switches_setup( const char *str, unsigned len ) 184 { 185 char switches[len+1]; 186 char *p; 187 int ovsc_shift; 188 char *args = switches; 189 190 /* copy string to local array, strsep works destructively... */ 191 strlcpy( switches, str, sizeof(switches) ); 192 atari_switches = 0; 193 194 /* parse the options */ 195 while ((p = strsep(&args, ",")) != NULL) { 196 if (!*p) continue; 197 ovsc_shift = 0; 198 if (strncmp( p, "ov_", 3 ) == 0) { 199 p += 3; 200 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 201 } 202 203 if (strcmp( p, "ikbd" ) == 0) { 204 /* RTS line of IKBD ACIA */ 205 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 206 } 207 else if (strcmp( p, "midi" ) == 0) { 208 /* RTS line of MIDI ACIA */ 209 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 210 } 211 else if (strcmp( p, "snd6" ) == 0) { 212 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 213 } 214 else if (strcmp( p, "snd7" ) == 0) { 215 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 216 } 217 } 218 } 219 220 221 /* 222 * Setup the Atari configuration info 223 */ 224 225 void __init config_atari(void) 226 { 227 unsigned short tos_version; 228 229 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 230 231 atari_debug_init(); 232 233 ioport_resource.end = 0xFFFFFFFF; /* Change size of I/O space from 64KB 234 to 4GB. */ 235 236 mach_sched_init = atari_sched_init; 237 mach_init_IRQ = atari_init_IRQ; 238 mach_request_irq = atari_request_irq; 239 mach_free_irq = atari_free_irq; 240 enable_irq = atari_enable_irq; 241 disable_irq = atari_disable_irq; 242 mach_get_model = atari_get_model; 243 mach_get_hardware_list = atari_get_hardware_list; 244 mach_get_irq_list = show_atari_interrupts; 245 mach_gettimeoffset = atari_gettimeoffset; 246 mach_reset = atari_reset; 247 #ifdef CONFIG_ATARI_FLOPPY 248 mach_floppy_setup = atari_floppy_setup; 249 #endif 250 #ifdef CONFIG_DUMMY_CONSOLE 251 conswitchp = &dummy_con; 252 #endif 253 mach_max_dma_address = 0xffffff; 254 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 255 mach_beep = atari_mksound; 256 #endif 257 #ifdef CONFIG_HEARTBEAT 258 mach_heartbeat = atari_heartbeat; 259 #endif 260 261 /* Set switches as requested by the user */ 262 if (atari_switches & ATARI_SWITCH_IKBD) 263 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 264 if (atari_switches & ATARI_SWITCH_MIDI) 265 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 266 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 267 sound_ym.rd_data_reg_sel = 14; 268 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 269 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 270 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 271 } 272 273 /* ++bjoern: 274 * Determine hardware present 275 */ 276 277 printk( "Atari hardware found: " ); 278 if (MACH_IS_MEDUSA || MACH_IS_HADES) { 279 /* There's no Atari video hardware on the Medusa, but all the 280 * addresses below generate a DTACK so no bus error occurs! */ 281 } 282 else if (hwreg_present( f030_xreg )) { 283 ATARIHW_SET(VIDEL_SHIFTER); 284 printk( "VIDEL " ); 285 /* This is a temporary hack: If there is Falcon video 286 * hardware, we assume that the ST-DMA serves SCSI instead of 287 * ACSI. In the future, there should be a better method for 288 * this... 289 */ 290 ATARIHW_SET(ST_SCSI); 291 printk( "STDMA-SCSI " ); 292 } 293 else if (hwreg_present( tt_palette )) { 294 ATARIHW_SET(TT_SHIFTER); 295 printk( "TT_SHIFTER " ); 296 } 297 else if (hwreg_present( &shifter.bas_hi )) { 298 if (hwreg_present( &shifter.bas_lo ) && 299 (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { 300 ATARIHW_SET(EXTD_SHIFTER); 301 printk( "EXTD_SHIFTER " ); 302 } 303 else { 304 ATARIHW_SET(STND_SHIFTER); 305 printk( "STND_SHIFTER " ); 306 } 307 } 308 if (hwreg_present( &mfp.par_dt_reg )) { 309 ATARIHW_SET(ST_MFP); 310 printk( "ST_MFP " ); 311 } 312 if (hwreg_present( &tt_mfp.par_dt_reg )) { 313 ATARIHW_SET(TT_MFP); 314 printk( "TT_MFP " ); 315 } 316 if (hwreg_present( &tt_scsi_dma.dma_addr_hi )) { 317 ATARIHW_SET(SCSI_DMA); 318 printk( "TT_SCSI_DMA " ); 319 } 320 if (!MACH_IS_HADES && hwreg_present( &st_dma.dma_hi )) { 321 ATARIHW_SET(STND_DMA); 322 printk( "STND_DMA " ); 323 } 324 if (MACH_IS_MEDUSA || /* The ST-DMA address registers aren't readable 325 * on all Medusas, so the test below may fail */ 326 (hwreg_present( &st_dma.dma_vhi ) && 327 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 328 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 329 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 330 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 331 ATARIHW_SET(EXTD_DMA); 332 printk( "EXTD_DMA " ); 333 } 334 if (hwreg_present( &tt_scsi.scsi_data )) { 335 ATARIHW_SET(TT_SCSI); 336 printk( "TT_SCSI " ); 337 } 338 if (hwreg_present( &sound_ym.rd_data_reg_sel )) { 339 ATARIHW_SET(YM_2149); 340 printk( "YM2149 " ); 341 } 342 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 343 hwreg_present( &tt_dmasnd.ctrl )) { 344 ATARIHW_SET(PCM_8BIT); 345 printk( "PCM " ); 346 } 347 if (!MACH_IS_HADES && hwreg_present( &falcon_codec.unused5 )) { 348 ATARIHW_SET(CODEC); 349 printk( "CODEC " ); 350 } 351 if (hwreg_present( &dsp56k_host_interface.icr )) { 352 ATARIHW_SET(DSP56K); 353 printk( "DSP56K " ); 354 } 355 if (hwreg_present( &tt_scc_dma.dma_ctrl ) && 356 #if 0 357 /* This test sucks! Who knows some better? */ 358 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 359 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 360 #else 361 !MACH_IS_MEDUSA && !MACH_IS_HADES 362 #endif 363 ) { 364 ATARIHW_SET(SCC_DMA); 365 printk( "SCC_DMA " ); 366 } 367 if (scc_test( &scc.cha_a_ctrl )) { 368 ATARIHW_SET(SCC); 369 printk( "SCC " ); 370 } 371 if (scc_test( &st_escc.cha_b_ctrl )) { 372 ATARIHW_SET( ST_ESCC ); 373 printk( "ST_ESCC " ); 374 } 375 if (MACH_IS_HADES) 376 { 377 ATARIHW_SET( VME ); 378 printk( "VME " ); 379 } 380 else if (hwreg_present( &tt_scu.sys_mask )) { 381 ATARIHW_SET(SCU); 382 /* Assume a VME bus if there's a SCU */ 383 ATARIHW_SET( VME ); 384 printk( "VME SCU " ); 385 } 386 if (hwreg_present( (void *)(0xffff9210) )) { 387 ATARIHW_SET(ANALOG_JOY); 388 printk( "ANALOG_JOY " ); 389 } 390 if (!MACH_IS_HADES && hwreg_present( blitter.halftone )) { 391 ATARIHW_SET(BLITTER); 392 printk( "BLITTER " ); 393 } 394 if (hwreg_present((void *)0xfff00039)) { 395 ATARIHW_SET(IDE); 396 printk( "IDE " ); 397 } 398 #if 1 /* This maybe wrong */ 399 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 400 hwreg_present( &tt_microwire.data ) && 401 hwreg_present( &tt_microwire.mask ) && 402 (tt_microwire.mask = 0x7ff, 403 udelay(1), 404 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 405 udelay(1), 406 tt_microwire.data != 0)) { 407 ATARIHW_SET(MICROWIRE); 408 while (tt_microwire.mask != 0x7ff) ; 409 printk( "MICROWIRE " ); 410 } 411 #endif 412 if (hwreg_present( &tt_rtc.regsel )) { 413 ATARIHW_SET(TT_CLK); 414 printk( "TT_CLK " ); 415 mach_hwclk = atari_tt_hwclk; 416 mach_set_clock_mmss = atari_tt_set_clock_mmss; 417 } 418 if (!MACH_IS_HADES && hwreg_present( &mste_rtc.sec_ones)) { 419 ATARIHW_SET(MSTE_CLK); 420 printk( "MSTE_CLK "); 421 mach_hwclk = atari_mste_hwclk; 422 mach_set_clock_mmss = atari_mste_set_clock_mmss; 423 } 424 if (!MACH_IS_MEDUSA && !MACH_IS_HADES && 425 hwreg_present( &dma_wd.fdc_speed ) && 426 hwreg_write( &dma_wd.fdc_speed, 0 )) { 427 ATARIHW_SET(FDCSPEED); 428 printk( "FDC_SPEED "); 429 } 430 if (!MACH_IS_HADES && !ATARIHW_PRESENT(ST_SCSI)) { 431 ATARIHW_SET(ACSI); 432 printk( "ACSI " ); 433 } 434 printk("\n"); 435 436 if (CPU_IS_040_OR_060) 437 /* Now it seems to be safe to turn of the tt0 transparent 438 * translation (the one that must not be turned off in 439 * head.S...) 440 */ 441 __asm__ volatile ("moveq #0,%/d0\n\t" 442 ".chip 68040\n\t" 443 "movec %%d0,%%itt0\n\t" 444 "movec %%d0,%%dtt0\n\t" 445 ".chip 68k" 446 : /* no outputs */ 447 : /* no inputs */ 448 : "d0"); 449 450 /* allocator for memory that must reside in st-ram */ 451 atari_stram_init (); 452 453 /* Set up a mapping for the VMEbus address region: 454 * 455 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 456 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 457 * 0xfe000000 virt., because this can be done with a single 458 * transparent translation. On the 68040, lots of often unused 459 * page tables would be needed otherwise. On a MegaSTE or similar, 460 * the highest byte is stripped off by hardware due to the 24 bit 461 * design of the bus. 462 */ 463 464 if (CPU_IS_020_OR_030) { 465 unsigned long tt1_val; 466 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 467 * inhibit, read and write, FDC mask = 3, 468 * FDC val = 4 -> Supervisor only */ 469 __asm__ __volatile__ ( ".chip 68030\n\t" 470 "pmove %0@,%/tt1\n\t" 471 ".chip 68k" 472 : : "a" (&tt1_val) ); 473 } 474 else { 475 __asm__ __volatile__ 476 ( "movel %0,%/d0\n\t" 477 ".chip 68040\n\t" 478 "movec %%d0,%%itt1\n\t" 479 "movec %%d0,%%dtt1\n\t" 480 ".chip 68k" 481 : 482 : "g" (0xfe00a040) /* Translate 0xfexxxxxx, enable, 483 * supervisor only, non-cacheable/ 484 * serialized, writable */ 485 : "d0" ); 486 487 } 488 489 /* Fetch tos version at Physical 2 */ 490 /* We my not be able to access this address if the kernel is 491 loaded to st ram, since the first page is unmapped. On the 492 Medusa this is always the case and there is nothing we can do 493 about this, so we just assume the smaller offset. For the TT 494 we use the fact that in head.S we have set up a mapping 495 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 496 in the last 16MB of the address space. */ 497 tos_version = (MACH_IS_MEDUSA || MACH_IS_HADES) ? 498 0xfff : *(unsigned short *)0xff000002; 499 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 500 } 501 502 #ifdef CONFIG_HEARTBEAT 503 static void atari_heartbeat( int on ) 504 { 505 unsigned char tmp; 506 unsigned long flags; 507 508 if (atari_dont_touch_floppy_select) 509 return; 510 511 local_irq_save(flags); 512 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 513 tmp = sound_ym.rd_data_reg_sel; 514 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 515 local_irq_restore(flags); 516 } 517 #endif 518 519 /* ++roman: 520 * 521 * This function does a reset on machines that lack the ability to 522 * assert the processor's _RESET signal somehow via hardware. It is 523 * based on the fact that you can find the initial SP and PC values 524 * after a reset at physical addresses 0 and 4. This works pretty well 525 * for Atari machines, since the lowest 8 bytes of physical memory are 526 * really ROM (mapped by hardware). For other 680x0 machines: don't 527 * know if it works... 528 * 529 * To get the values at addresses 0 and 4, the MMU better is turned 530 * off first. After that, we have to jump into physical address space 531 * (the PC before the pmove statement points to the virtual address of 532 * the code). Getting that physical address is not hard, but the code 533 * becomes a bit complex since I've tried to ensure that the jump 534 * statement after the pmove is in the cache already (otherwise the 535 * processor can't fetch it!). For that, the code first jumps to the 536 * jump statement with the (virtual) address of the pmove section in 537 * an address register . The jump statement is surely in the cache 538 * now. After that, that physical address of the reset code is loaded 539 * into the same address register, pmove is done and the same jump 540 * statements goes to the reset code. Since there are not many 541 * statements between the two jumps, I hope it stays in the cache. 542 * 543 * The C code makes heavy use of the GCC features that you can get the 544 * address of a C label. No hope to compile this with another compiler 545 * than GCC! 546 */ 547 548 /* ++andreas: no need for complicated code, just depend on prefetch */ 549 550 static void atari_reset (void) 551 { 552 long tc_val = 0; 553 long reset_addr; 554 555 /* On the Medusa, phys. 0x4 may contain garbage because it's no 556 ROM. See above for explanation why we cannot use PTOV(4). */ 557 reset_addr = MACH_IS_HADES ? 0x7fe00030 : 558 MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 559 *(unsigned long *) 0xff000004; 560 561 /* reset ACIA for switch off OverScan, if it's active */ 562 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 563 acia.key_ctrl = ACIA_RESET; 564 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 565 acia.mid_ctrl = ACIA_RESET; 566 567 /* processor independent: turn off interrupts and reset the VBR; 568 * the caches must be left enabled, else prefetching the final jump 569 * instruction doesn't work. */ 570 local_irq_disable(); 571 __asm__ __volatile__ 572 ("moveq #0,%/d0\n\t" 573 "movec %/d0,%/vbr" 574 : : : "d0" ); 575 576 if (CPU_IS_040_OR_060) { 577 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 578 if (CPU_IS_060) { 579 /* 68060: clear PCR to turn off superscalar operation */ 580 __asm__ __volatile__ 581 ("moveq #0,%/d0\n\t" 582 ".chip 68060\n\t" 583 "movec %%d0,%%pcr\n\t" 584 ".chip 68k" 585 : : : "d0" ); 586 } 587 588 __asm__ __volatile__ 589 ("movel %0,%/d0\n\t" 590 "andl #0xff000000,%/d0\n\t" 591 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ 592 ".chip 68040\n\t" 593 "movec %%d0,%%itt0\n\t" 594 "movec %%d0,%%dtt0\n\t" 595 ".chip 68k\n\t" 596 "jmp %0@\n\t" 597 : /* no outputs */ 598 : "a" (jmp_addr040) 599 : "d0" ); 600 jmp_addr_label040: 601 __asm__ __volatile__ 602 ("moveq #0,%/d0\n\t" 603 "nop\n\t" 604 ".chip 68040\n\t" 605 "cinva %%bc\n\t" 606 "nop\n\t" 607 "pflusha\n\t" 608 "nop\n\t" 609 "movec %%d0,%%tc\n\t" 610 "nop\n\t" 611 /* the following setup of transparent translations is needed on the 612 * Afterburner040 to successfully reboot. Other machines shouldn't 613 * care about a different tt regs setup, they also didn't care in 614 * the past that the regs weren't turned off. */ 615 "movel #0xffc000,%%d0\n\t" /* whole insn space cacheable */ 616 "movec %%d0,%%itt0\n\t" 617 "movec %%d0,%%itt1\n\t" 618 "orw #0x40,%/d0\n\t" /* whole data space non-cacheable/ser. */ 619 "movec %%d0,%%dtt0\n\t" 620 "movec %%d0,%%dtt1\n\t" 621 ".chip 68k\n\t" 622 "jmp %0@" 623 : /* no outputs */ 624 : "a" (reset_addr) 625 : "d0"); 626 } 627 else 628 __asm__ __volatile__ 629 ("pmove %0@,%/tc\n\t" 630 "jmp %1@" 631 : /* no outputs */ 632 : "a" (&tc_val), "a" (reset_addr)); 633 } 634 635 636 static void atari_get_model(char *model) 637 { 638 strcpy(model, "Atari "); 639 switch (atari_mch_cookie >> 16) { 640 case ATARI_MCH_ST: 641 if (ATARIHW_PRESENT(MSTE_CLK)) 642 strcat (model, "Mega ST"); 643 else 644 strcat (model, "ST"); 645 break; 646 case ATARI_MCH_STE: 647 if (MACH_IS_MSTE) 648 strcat (model, "Mega STE"); 649 else 650 strcat (model, "STE"); 651 break; 652 case ATARI_MCH_TT: 653 if (MACH_IS_MEDUSA) 654 /* Medusa has TT _MCH cookie */ 655 strcat (model, "Medusa"); 656 else if (MACH_IS_HADES) 657 strcat(model, "Hades"); 658 else 659 strcat (model, "TT"); 660 break; 661 case ATARI_MCH_FALCON: 662 strcat (model, "Falcon"); 663 if (MACH_IS_AB40) 664 strcat (model, " (with Afterburner040)"); 665 break; 666 default: 667 sprintf (model + strlen (model), "(unknown mach cookie 0x%lx)", 668 atari_mch_cookie); 669 break; 670 } 671 } 672 673 674 static int atari_get_hardware_list(char *buffer) 675 { 676 int len = 0, i; 677 678 for (i = 0; i < m68k_num_memory; i++) 679 len += sprintf (buffer+len, "\t%3ld MB at 0x%08lx (%s)\n", 680 m68k_memory[i].size >> 20, m68k_memory[i].addr, 681 (m68k_memory[i].addr & 0xff000000 ? 682 "alternate RAM" : "ST-RAM")); 683 684 #define ATARIHW_ANNOUNCE(name,str) \ 685 if (ATARIHW_PRESENT(name)) \ 686 len += sprintf (buffer + len, "\t%s\n", str) 687 688 len += sprintf (buffer + len, "Detected hardware:\n"); 689 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 690 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 691 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 692 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 693 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 694 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 695 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 696 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 697 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 698 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 699 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 700 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 701 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 702 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 703 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 704 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 705 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 706 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 707 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 708 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 709 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 710 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 711 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 712 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 713 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 714 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 715 ATARIHW_ANNOUNCE(VME, "VME Bus"); 716 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 717 718 return(len); 719 } 720 721 /* 722 * Local variables: 723 * c-indent-level: 4 724 * tab-width: 8 725 * End: 726 */ 727