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/setup.h> 41 #include <asm/atarihw.h> 42 #include <asm/atariints.h> 43 #include <asm/atari_stram.h> 44 #include <asm/machdep.h> 45 #include <asm/hwtest.h> 46 #include <asm/io.h> 47 48 u_long atari_mch_cookie; 49 EXPORT_SYMBOL(atari_mch_cookie); 50 51 u_long atari_mch_type; 52 EXPORT_SYMBOL(atari_mch_type); 53 54 struct atari_hw_present atari_hw_present; 55 EXPORT_SYMBOL(atari_hw_present); 56 57 u_long atari_switches; 58 EXPORT_SYMBOL(atari_switches); 59 60 int atari_dont_touch_floppy_select; 61 EXPORT_SYMBOL(atari_dont_touch_floppy_select); 62 63 int atari_rtc_year_offset; 64 65 /* local function prototypes */ 66 static void atari_reset(void); 67 static void atari_get_model(char *model); 68 static void atari_get_hardware_list(struct seq_file *m); 69 70 /* atari specific irq functions */ 71 extern void atari_init_IRQ (void); 72 extern void atari_mksound(unsigned int count, unsigned int ticks); 73 #ifdef CONFIG_HEARTBEAT 74 static void atari_heartbeat(int on); 75 #endif 76 77 /* atari specific timer functions (in time.c) */ 78 extern void atari_sched_init(irq_handler_t); 79 extern u32 atari_gettimeoffset(void); 80 extern int atari_mste_hwclk (int, struct rtc_time *); 81 extern int atari_tt_hwclk (int, struct rtc_time *); 82 extern int atari_mste_set_clock_mmss (unsigned long); 83 extern int atari_tt_set_clock_mmss (unsigned long); 84 85 86 /* ++roman: This is a more elaborate test for an SCC chip, since the plain 87 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 88 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 89 * resides generate DTACK without the chip, too. 90 * The method is to write values into the interrupt vector register, that 91 * should be readable without trouble (from channel A!). 92 */ 93 94 static int __init scc_test(volatile char *ctla) 95 { 96 if (!hwreg_present(ctla)) 97 return 0; 98 MFPDELAY(); 99 100 *ctla = 2; 101 MFPDELAY(); 102 *ctla = 0x40; 103 MFPDELAY(); 104 105 *ctla = 2; 106 MFPDELAY(); 107 if (*ctla != 0x40) 108 return 0; 109 MFPDELAY(); 110 111 *ctla = 2; 112 MFPDELAY(); 113 *ctla = 0x60; 114 MFPDELAY(); 115 116 *ctla = 2; 117 MFPDELAY(); 118 if (*ctla != 0x60) 119 return 0; 120 121 return 1; 122 } 123 124 125 /* 126 * Parse an Atari-specific record in the bootinfo 127 */ 128 129 int __init atari_parse_bootinfo(const struct bi_record *record) 130 { 131 int unknown = 0; 132 const u_long *data = record->data; 133 134 switch (record->tag) { 135 case BI_ATARI_MCH_COOKIE: 136 atari_mch_cookie = *data; 137 break; 138 case BI_ATARI_MCH_TYPE: 139 atari_mch_type = *data; 140 break; 141 default: 142 unknown = 1; 143 break; 144 } 145 return unknown; 146 } 147 148 149 /* Parse the Atari-specific switches= option. */ 150 static int __init atari_switches_setup(char *str) 151 { 152 char switches[strlen(str) + 1]; 153 char *p; 154 int ovsc_shift; 155 char *args = switches; 156 157 if (!MACH_IS_ATARI) 158 return 0; 159 160 /* copy string to local array, strsep works destructively... */ 161 strcpy(switches, str); 162 atari_switches = 0; 163 164 /* parse the options */ 165 while ((p = strsep(&args, ",")) != NULL) { 166 if (!*p) 167 continue; 168 ovsc_shift = 0; 169 if (strncmp(p, "ov_", 3) == 0) { 170 p += 3; 171 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 172 } 173 174 if (strcmp(p, "ikbd") == 0) { 175 /* RTS line of IKBD ACIA */ 176 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 177 } else if (strcmp(p, "midi") == 0) { 178 /* RTS line of MIDI ACIA */ 179 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 180 } else if (strcmp(p, "snd6") == 0) { 181 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 182 } else if (strcmp(p, "snd7") == 0) { 183 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 184 } 185 } 186 return 0; 187 } 188 189 early_param("switches", atari_switches_setup); 190 191 192 /* 193 * Setup the Atari configuration info 194 */ 195 196 void __init config_atari(void) 197 { 198 unsigned short tos_version; 199 200 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 201 202 /* Change size of I/O space from 64KB to 4GB. */ 203 ioport_resource.end = 0xFFFFFFFF; 204 205 mach_sched_init = atari_sched_init; 206 mach_init_IRQ = atari_init_IRQ; 207 mach_get_model = atari_get_model; 208 mach_get_hardware_list = atari_get_hardware_list; 209 arch_gettimeoffset = atari_gettimeoffset; 210 mach_reset = atari_reset; 211 mach_max_dma_address = 0xffffff; 212 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 213 mach_beep = atari_mksound; 214 #endif 215 #ifdef CONFIG_HEARTBEAT 216 mach_heartbeat = atari_heartbeat; 217 #endif 218 219 /* Set switches as requested by the user */ 220 if (atari_switches & ATARI_SWITCH_IKBD) 221 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 222 if (atari_switches & ATARI_SWITCH_MIDI) 223 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 224 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 225 sound_ym.rd_data_reg_sel = 14; 226 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 227 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 228 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 229 } 230 231 /* ++bjoern: 232 * Determine hardware present 233 */ 234 235 printk("Atari hardware found: "); 236 if (MACH_IS_MEDUSA) { 237 /* There's no Atari video hardware on the Medusa, but all the 238 * addresses below generate a DTACK so no bus error occurs! */ 239 } else if (hwreg_present(f030_xreg)) { 240 ATARIHW_SET(VIDEL_SHIFTER); 241 printk("VIDEL "); 242 /* This is a temporary hack: If there is Falcon video 243 * hardware, we assume that the ST-DMA serves SCSI instead of 244 * ACSI. In the future, there should be a better method for 245 * this... 246 */ 247 ATARIHW_SET(ST_SCSI); 248 printk("STDMA-SCSI "); 249 } else if (hwreg_present(tt_palette)) { 250 ATARIHW_SET(TT_SHIFTER); 251 printk("TT_SHIFTER "); 252 } else if (hwreg_present(&shifter.bas_hi)) { 253 if (hwreg_present(&shifter.bas_lo) && 254 (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { 255 ATARIHW_SET(EXTD_SHIFTER); 256 printk("EXTD_SHIFTER "); 257 } else { 258 ATARIHW_SET(STND_SHIFTER); 259 printk("STND_SHIFTER "); 260 } 261 } 262 if (hwreg_present(&st_mfp.par_dt_reg)) { 263 ATARIHW_SET(ST_MFP); 264 printk("ST_MFP "); 265 } 266 if (hwreg_present(&tt_mfp.par_dt_reg)) { 267 ATARIHW_SET(TT_MFP); 268 printk("TT_MFP "); 269 } 270 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 271 ATARIHW_SET(SCSI_DMA); 272 printk("TT_SCSI_DMA "); 273 } 274 /* 275 * The ST-DMA address registers aren't readable 276 * on all Medusas, so the test below may fail 277 */ 278 if (MACH_IS_MEDUSA || 279 (hwreg_present(&st_dma.dma_vhi) && 280 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 281 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 282 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 283 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 284 ATARIHW_SET(EXTD_DMA); 285 printk("EXTD_DMA "); 286 } 287 if (hwreg_present(&tt_scsi.scsi_data)) { 288 ATARIHW_SET(TT_SCSI); 289 printk("TT_SCSI "); 290 } 291 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 292 ATARIHW_SET(YM_2149); 293 printk("YM2149 "); 294 } 295 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 296 ATARIHW_SET(PCM_8BIT); 297 printk("PCM "); 298 } 299 if (hwreg_present(&falcon_codec.unused5)) { 300 ATARIHW_SET(CODEC); 301 printk("CODEC "); 302 } 303 if (hwreg_present(&dsp56k_host_interface.icr)) { 304 ATARIHW_SET(DSP56K); 305 printk("DSP56K "); 306 } 307 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 308 #if 0 309 /* This test sucks! Who knows some better? */ 310 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 311 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 312 #else 313 !MACH_IS_MEDUSA 314 #endif 315 ) { 316 ATARIHW_SET(SCC_DMA); 317 printk("SCC_DMA "); 318 } 319 if (scc_test(&atari_scc.cha_a_ctrl)) { 320 ATARIHW_SET(SCC); 321 printk("SCC "); 322 } 323 if (scc_test(&st_escc.cha_b_ctrl)) { 324 ATARIHW_SET(ST_ESCC); 325 printk("ST_ESCC "); 326 } 327 if (hwreg_present(&tt_scu.sys_mask)) { 328 ATARIHW_SET(SCU); 329 /* Assume a VME bus if there's a SCU */ 330 ATARIHW_SET(VME); 331 printk("VME SCU "); 332 } 333 if (hwreg_present((void *)(0xffff9210))) { 334 ATARIHW_SET(ANALOG_JOY); 335 printk("ANALOG_JOY "); 336 } 337 if (hwreg_present(blitter.halftone)) { 338 ATARIHW_SET(BLITTER); 339 printk("BLITTER "); 340 } 341 if (hwreg_present((void *)0xfff00039)) { 342 ATARIHW_SET(IDE); 343 printk("IDE "); 344 } 345 #if 1 /* This maybe wrong */ 346 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 347 hwreg_present(&tt_microwire.mask) && 348 (tt_microwire.mask = 0x7ff, 349 udelay(1), 350 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 351 udelay(1), 352 tt_microwire.data != 0)) { 353 ATARIHW_SET(MICROWIRE); 354 while (tt_microwire.mask != 0x7ff) 355 ; 356 printk("MICROWIRE "); 357 } 358 #endif 359 if (hwreg_present(&tt_rtc.regsel)) { 360 ATARIHW_SET(TT_CLK); 361 printk("TT_CLK "); 362 mach_hwclk = atari_tt_hwclk; 363 mach_set_clock_mmss = atari_tt_set_clock_mmss; 364 } 365 if (hwreg_present(&mste_rtc.sec_ones)) { 366 ATARIHW_SET(MSTE_CLK); 367 printk("MSTE_CLK "); 368 mach_hwclk = atari_mste_hwclk; 369 mach_set_clock_mmss = atari_mste_set_clock_mmss; 370 } 371 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 372 hwreg_write(&dma_wd.fdc_speed, 0)) { 373 ATARIHW_SET(FDCSPEED); 374 printk("FDC_SPEED "); 375 } 376 if (!ATARIHW_PRESENT(ST_SCSI)) { 377 ATARIHW_SET(ACSI); 378 printk("ACSI "); 379 } 380 printk("\n"); 381 382 if (CPU_IS_040_OR_060) 383 /* Now it seems to be safe to turn of the tt0 transparent 384 * translation (the one that must not be turned off in 385 * head.S...) 386 */ 387 asm volatile ("\n" 388 " moveq #0,%%d0\n" 389 " .chip 68040\n" 390 " movec %%d0,%%itt0\n" 391 " movec %%d0,%%dtt0\n" 392 " .chip 68k" 393 : /* no outputs */ 394 : /* no inputs */ 395 : "d0"); 396 397 /* allocator for memory that must reside in st-ram */ 398 atari_stram_init(); 399 400 /* Set up a mapping for the VMEbus address region: 401 * 402 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 403 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 404 * 0xfe000000 virt., because this can be done with a single 405 * transparent translation. On the 68040, lots of often unused 406 * page tables would be needed otherwise. On a MegaSTE or similar, 407 * the highest byte is stripped off by hardware due to the 24 bit 408 * design of the bus. 409 */ 410 411 if (CPU_IS_020_OR_030) { 412 unsigned long tt1_val; 413 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 414 * inhibit, read and write, FDC mask = 3, 415 * FDC val = 4 -> Supervisor only */ 416 asm volatile ("\n" 417 " .chip 68030\n" 418 " pmove %0,%/tt1\n" 419 " .chip 68k" 420 : : "m" (tt1_val)); 421 } else { 422 asm volatile ("\n" 423 " .chip 68040\n" 424 " movec %0,%%itt1\n" 425 " movec %0,%%dtt1\n" 426 " .chip 68k" 427 : 428 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 429 * supervisor only, non-cacheable/ 430 * serialized, writable */ 431 432 } 433 434 /* Fetch tos version at Physical 2 */ 435 /* 436 * We my not be able to access this address if the kernel is 437 * loaded to st ram, since the first page is unmapped. On the 438 * Medusa this is always the case and there is nothing we can do 439 * about this, so we just assume the smaller offset. For the TT 440 * we use the fact that in head.S we have set up a mapping 441 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 442 * in the last 16MB of the address space. 443 */ 444 tos_version = (MACH_IS_MEDUSA) ? 445 0xfff : *(unsigned short *)0xff000002; 446 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 447 } 448 449 #ifdef CONFIG_HEARTBEAT 450 static void atari_heartbeat(int on) 451 { 452 unsigned char tmp; 453 unsigned long flags; 454 455 if (atari_dont_touch_floppy_select) 456 return; 457 458 local_irq_save(flags); 459 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 460 tmp = sound_ym.rd_data_reg_sel; 461 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 462 local_irq_restore(flags); 463 } 464 #endif 465 466 /* ++roman: 467 * 468 * This function does a reset on machines that lack the ability to 469 * assert the processor's _RESET signal somehow via hardware. It is 470 * based on the fact that you can find the initial SP and PC values 471 * after a reset at physical addresses 0 and 4. This works pretty well 472 * for Atari machines, since the lowest 8 bytes of physical memory are 473 * really ROM (mapped by hardware). For other 680x0 machines: don't 474 * know if it works... 475 * 476 * To get the values at addresses 0 and 4, the MMU better is turned 477 * off first. After that, we have to jump into physical address space 478 * (the PC before the pmove statement points to the virtual address of 479 * the code). Getting that physical address is not hard, but the code 480 * becomes a bit complex since I've tried to ensure that the jump 481 * statement after the pmove is in the cache already (otherwise the 482 * processor can't fetch it!). For that, the code first jumps to the 483 * jump statement with the (virtual) address of the pmove section in 484 * an address register . The jump statement is surely in the cache 485 * now. After that, that physical address of the reset code is loaded 486 * into the same address register, pmove is done and the same jump 487 * statements goes to the reset code. Since there are not many 488 * statements between the two jumps, I hope it stays in the cache. 489 * 490 * The C code makes heavy use of the GCC features that you can get the 491 * address of a C label. No hope to compile this with another compiler 492 * than GCC! 493 */ 494 495 /* ++andreas: no need for complicated code, just depend on prefetch */ 496 497 static void atari_reset(void) 498 { 499 long tc_val = 0; 500 long reset_addr; 501 502 /* 503 * On the Medusa, phys. 0x4 may contain garbage because it's no 504 * ROM. See above for explanation why we cannot use PTOV(4). 505 */ 506 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 507 *(unsigned long *) 0xff000004; 508 509 /* reset ACIA for switch off OverScan, if it's active */ 510 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 511 acia.key_ctrl = ACIA_RESET; 512 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 513 acia.mid_ctrl = ACIA_RESET; 514 515 /* processor independent: turn off interrupts and reset the VBR; 516 * the caches must be left enabled, else prefetching the final jump 517 * instruction doesn't work. 518 */ 519 local_irq_disable(); 520 asm volatile ("movec %0,%%vbr" 521 : : "d" (0)); 522 523 if (CPU_IS_040_OR_060) { 524 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 525 if (CPU_IS_060) { 526 /* 68060: clear PCR to turn off superscalar operation */ 527 asm volatile ("\n" 528 " .chip 68060\n" 529 " movec %0,%%pcr\n" 530 " .chip 68k" 531 : : "d" (0)); 532 } 533 534 asm volatile ("\n" 535 " move.l %0,%%d0\n" 536 " and.l #0xff000000,%%d0\n" 537 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 538 " .chip 68040\n" 539 " movec %%d0,%%itt0\n" 540 " movec %%d0,%%dtt0\n" 541 " .chip 68k\n" 542 " jmp %0@" 543 : : "a" (jmp_addr040) 544 : "d0"); 545 jmp_addr_label040: 546 asm volatile ("\n" 547 " moveq #0,%%d0\n" 548 " nop\n" 549 " .chip 68040\n" 550 " cinva %%bc\n" 551 " nop\n" 552 " pflusha\n" 553 " nop\n" 554 " movec %%d0,%%tc\n" 555 " nop\n" 556 /* the following setup of transparent translations is needed on the 557 * Afterburner040 to successfully reboot. Other machines shouldn't 558 * care about a different tt regs setup, they also didn't care in 559 * the past that the regs weren't turned off. */ 560 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 561 " movec %%d0,%%itt0\n" 562 " movec %%d0,%%itt1\n" 563 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 564 " movec %%d0,%%dtt0\n" 565 " movec %%d0,%%dtt1\n" 566 " .chip 68k\n" 567 " jmp %0@" 568 : /* no outputs */ 569 : "a" (reset_addr) 570 : "d0"); 571 } else 572 asm volatile ("\n" 573 " pmove %0,%%tc\n" 574 " jmp %1@" 575 : /* no outputs */ 576 : "m" (tc_val), "a" (reset_addr)); 577 } 578 579 580 static void atari_get_model(char *model) 581 { 582 strcpy(model, "Atari "); 583 switch (atari_mch_cookie >> 16) { 584 case ATARI_MCH_ST: 585 if (ATARIHW_PRESENT(MSTE_CLK)) 586 strcat(model, "Mega ST"); 587 else 588 strcat(model, "ST"); 589 break; 590 case ATARI_MCH_STE: 591 if (MACH_IS_MSTE) 592 strcat(model, "Mega STE"); 593 else 594 strcat(model, "STE"); 595 break; 596 case ATARI_MCH_TT: 597 if (MACH_IS_MEDUSA) 598 /* Medusa has TT _MCH cookie */ 599 strcat(model, "Medusa"); 600 else 601 strcat(model, "TT"); 602 break; 603 case ATARI_MCH_FALCON: 604 strcat(model, "Falcon"); 605 if (MACH_IS_AB40) 606 strcat(model, " (with Afterburner040)"); 607 break; 608 default: 609 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 610 atari_mch_cookie); 611 break; 612 } 613 } 614 615 616 static void atari_get_hardware_list(struct seq_file *m) 617 { 618 int i; 619 620 for (i = 0; i < m68k_num_memory; i++) 621 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 622 m68k_memory[i].size >> 20, m68k_memory[i].addr, 623 (m68k_memory[i].addr & 0xff000000 ? 624 "alternate RAM" : "ST-RAM")); 625 626 #define ATARIHW_ANNOUNCE(name, str) \ 627 if (ATARIHW_PRESENT(name)) \ 628 seq_printf(m, "\t%s\n", str) 629 630 seq_printf(m, "Detected hardware:\n"); 631 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 632 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 633 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 634 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 635 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 636 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 637 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 638 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 639 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 640 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 641 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 642 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 643 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 644 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 645 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 646 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 647 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 648 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 649 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 650 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 651 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 652 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 653 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 654 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 655 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 656 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 657 ATARIHW_ANNOUNCE(VME, "VME Bus"); 658 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 659 } 660 661 /* 662 * MSch: initial platform device support for Atari, 663 * required for EtherNAT/EtherNEC/NetUSBee drivers 664 */ 665 666 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 667 static void isp1160_delay(struct device *dev, int delay) 668 { 669 ndelay(delay); 670 } 671 #endif 672 673 #ifdef CONFIG_ATARI_ETHERNAT 674 /* 675 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 676 */ 677 678 #define ATARI_ETHERNAT_IRQ 140 679 680 static struct resource smc91x_resources[] = { 681 [0] = { 682 .name = "smc91x-regs", 683 .start = ATARI_ETHERNAT_PHYS_ADDR, 684 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 685 .flags = IORESOURCE_MEM, 686 }, 687 [1] = { 688 .name = "smc91x-irq", 689 .start = ATARI_ETHERNAT_IRQ, 690 .end = ATARI_ETHERNAT_IRQ, 691 .flags = IORESOURCE_IRQ, 692 }, 693 }; 694 695 static struct platform_device smc91x_device = { 696 .name = "smc91x", 697 .id = -1, 698 .num_resources = ARRAY_SIZE(smc91x_resources), 699 .resource = smc91x_resources, 700 }; 701 702 /* 703 * ISP 1160 - using the isp116x-hcd module 704 */ 705 706 #define ATARI_USB_PHYS_ADDR 0x80000012 707 #define ATARI_USB_IRQ 139 708 709 static struct resource isp1160_resources[] = { 710 [0] = { 711 .name = "isp1160-data", 712 .start = ATARI_USB_PHYS_ADDR, 713 .end = ATARI_USB_PHYS_ADDR + 0x1, 714 .flags = IORESOURCE_MEM, 715 }, 716 [1] = { 717 .name = "isp1160-regs", 718 .start = ATARI_USB_PHYS_ADDR + 0x4, 719 .end = ATARI_USB_PHYS_ADDR + 0x5, 720 .flags = IORESOURCE_MEM, 721 }, 722 [2] = { 723 .name = "isp1160-irq", 724 .start = ATARI_USB_IRQ, 725 .end = ATARI_USB_IRQ, 726 .flags = IORESOURCE_IRQ, 727 }, 728 }; 729 730 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 731 static struct isp116x_platform_data isp1160_platform_data = { 732 /* Enable internal resistors on downstream ports */ 733 .sel15Kres = 1, 734 /* On-chip overcurrent protection */ 735 .oc_enable = 1, 736 /* INT output polarity */ 737 .int_act_high = 1, 738 /* INT edge or level triggered */ 739 .int_edge_triggered = 0, 740 741 /* WAKEUP pin connected - NOT SUPPORTED */ 742 /* .remote_wakeup_connected = 0, */ 743 /* Wakeup by devices on usb bus enabled */ 744 .remote_wakeup_enable = 0, 745 .delay = isp1160_delay, 746 }; 747 748 static struct platform_device isp1160_device = { 749 .name = "isp116x-hcd", 750 .id = 0, 751 .num_resources = ARRAY_SIZE(isp1160_resources), 752 .resource = isp1160_resources, 753 .dev = { 754 .platform_data = &isp1160_platform_data, 755 }, 756 }; 757 758 static struct platform_device *atari_ethernat_devices[] __initdata = { 759 &smc91x_device, 760 &isp1160_device 761 }; 762 #endif /* CONFIG_ATARI_ETHERNAT */ 763 764 #ifdef CONFIG_ATARI_ETHERNEC 765 /* 766 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 767 * handled by ne.c driver 768 */ 769 770 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 771 #define ATARI_ETHERNEC_BASE 0x300 772 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 773 774 static struct resource rtl8019_resources[] = { 775 [0] = { 776 .name = "rtl8019-regs", 777 .start = ATARI_ETHERNEC_BASE, 778 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 779 .flags = IORESOURCE_IO, 780 }, 781 [1] = { 782 .name = "rtl8019-irq", 783 .start = ATARI_ETHERNEC_IRQ, 784 .end = ATARI_ETHERNEC_IRQ, 785 .flags = IORESOURCE_IRQ, 786 }, 787 }; 788 789 static struct platform_device rtl8019_device = { 790 .name = "ne", 791 .id = -1, 792 .num_resources = ARRAY_SIZE(rtl8019_resources), 793 .resource = rtl8019_resources, 794 }; 795 796 /* 797 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 798 */ 799 800 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 801 #define ATARI_NETUSBEE_BASE 0x340 802 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 803 804 static struct resource netusbee_resources[] = { 805 [0] = { 806 .name = "isp1160-data", 807 .start = ATARI_NETUSBEE_BASE, 808 .end = ATARI_NETUSBEE_BASE + 0x1, 809 .flags = IORESOURCE_MEM, 810 }, 811 [1] = { 812 .name = "isp1160-regs", 813 .start = ATARI_NETUSBEE_BASE + 0x20, 814 .end = ATARI_NETUSBEE_BASE + 0x21, 815 .flags = IORESOURCE_MEM, 816 }, 817 [2] = { 818 .name = "isp1160-irq", 819 .start = ATARI_NETUSBEE_IRQ, 820 .end = ATARI_NETUSBEE_IRQ, 821 .flags = IORESOURCE_IRQ, 822 }, 823 }; 824 825 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 826 static struct isp116x_platform_data netusbee_platform_data = { 827 /* Enable internal resistors on downstream ports */ 828 .sel15Kres = 1, 829 /* On-chip overcurrent protection */ 830 .oc_enable = 1, 831 /* INT output polarity */ 832 .int_act_high = 1, 833 /* INT edge or level triggered */ 834 .int_edge_triggered = 0, 835 836 /* WAKEUP pin connected - NOT SUPPORTED */ 837 /* .remote_wakeup_connected = 0, */ 838 /* Wakeup by devices on usb bus enabled */ 839 .remote_wakeup_enable = 0, 840 .delay = isp1160_delay, 841 }; 842 843 static struct platform_device netusbee_device = { 844 .name = "isp116x-hcd", 845 .id = 1, 846 .num_resources = ARRAY_SIZE(netusbee_resources), 847 .resource = netusbee_resources, 848 .dev = { 849 .platform_data = &netusbee_platform_data, 850 }, 851 }; 852 853 static struct platform_device *atari_netusbee_devices[] __initdata = { 854 &rtl8019_device, 855 &netusbee_device 856 }; 857 #endif /* CONFIG_ATARI_ETHERNEC */ 858 859 int __init atari_platform_init(void) 860 { 861 int rv = 0; 862 863 if (!MACH_IS_ATARI) 864 return -ENODEV; 865 866 #ifdef CONFIG_ATARI_ETHERNAT 867 { 868 unsigned char *enatc_virt; 869 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 870 if (hwreg_present(enatc_virt)) { 871 rv = platform_add_devices(atari_ethernat_devices, 872 ARRAY_SIZE(atari_ethernat_devices)); 873 } 874 iounmap(enatc_virt); 875 } 876 #endif 877 878 #ifdef CONFIG_ATARI_ETHERNEC 879 { 880 int error; 881 unsigned char *enec_virt; 882 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 883 if (hwreg_present(enec_virt)) { 884 error = platform_add_devices(atari_netusbee_devices, 885 ARRAY_SIZE(atari_netusbee_devices)); 886 if (error && !rv) 887 rv = error; 888 } 889 iounmap(enec_virt); 890 } 891 #endif 892 893 return rv; 894 } 895 896 arch_initcall(atari_platform_init); 897