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 50 u_long atari_mch_cookie; 51 EXPORT_SYMBOL(atari_mch_cookie); 52 53 u_long atari_mch_type; 54 EXPORT_SYMBOL(atari_mch_type); 55 56 struct atari_hw_present atari_hw_present; 57 EXPORT_SYMBOL(atari_hw_present); 58 59 u_long atari_switches; 60 EXPORT_SYMBOL(atari_switches); 61 62 int atari_dont_touch_floppy_select; 63 EXPORT_SYMBOL(atari_dont_touch_floppy_select); 64 65 int atari_rtc_year_offset; 66 67 /* local function prototypes */ 68 static void atari_reset(void); 69 static void atari_get_model(char *model); 70 static void atari_get_hardware_list(struct seq_file *m); 71 72 /* atari specific irq functions */ 73 extern void atari_init_IRQ (void); 74 extern void atari_mksound(unsigned int count, unsigned int ticks); 75 #ifdef CONFIG_HEARTBEAT 76 static void atari_heartbeat(int on); 77 #endif 78 79 /* atari specific timer functions (in time.c) */ 80 extern void atari_sched_init(irq_handler_t); 81 extern u32 atari_gettimeoffset(void); 82 extern int atari_mste_hwclk (int, struct rtc_time *); 83 extern int atari_tt_hwclk (int, struct rtc_time *); 84 85 /* ++roman: This is a more elaborate test for an SCC chip, since the plain 86 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 87 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 88 * resides generate DTACK without the chip, too. 89 * The method is to write values into the interrupt vector register, that 90 * should be readable without trouble (from channel A!). 91 */ 92 93 static int __init scc_test(volatile char *ctla) 94 { 95 if (!hwreg_present(ctla)) 96 return 0; 97 MFPDELAY(); 98 99 *ctla = 2; 100 MFPDELAY(); 101 *ctla = 0x40; 102 MFPDELAY(); 103 104 *ctla = 2; 105 MFPDELAY(); 106 if (*ctla != 0x40) 107 return 0; 108 MFPDELAY(); 109 110 *ctla = 2; 111 MFPDELAY(); 112 *ctla = 0x60; 113 MFPDELAY(); 114 115 *ctla = 2; 116 MFPDELAY(); 117 if (*ctla != 0x60) 118 return 0; 119 120 return 1; 121 } 122 123 124 /* 125 * Parse an Atari-specific record in the bootinfo 126 */ 127 128 int __init atari_parse_bootinfo(const struct bi_record *record) 129 { 130 int unknown = 0; 131 const void *data = record->data; 132 133 switch (be16_to_cpu(record->tag)) { 134 case BI_ATARI_MCH_COOKIE: 135 atari_mch_cookie = be32_to_cpup(data); 136 break; 137 case BI_ATARI_MCH_TYPE: 138 atari_mch_type = be32_to_cpup(data); 139 break; 140 default: 141 unknown = 1; 142 break; 143 } 144 return unknown; 145 } 146 147 148 /* Parse the Atari-specific switches= option. */ 149 static int __init atari_switches_setup(char *str) 150 { 151 char switches[strlen(str) + 1]; 152 char *p; 153 int ovsc_shift; 154 char *args = switches; 155 156 if (!MACH_IS_ATARI) 157 return 0; 158 159 /* copy string to local array, strsep works destructively... */ 160 strcpy(switches, str); 161 atari_switches = 0; 162 163 /* parse the options */ 164 while ((p = strsep(&args, ",")) != NULL) { 165 if (!*p) 166 continue; 167 ovsc_shift = 0; 168 if (strncmp(p, "ov_", 3) == 0) { 169 p += 3; 170 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 171 } 172 173 if (strcmp(p, "ikbd") == 0) { 174 /* RTS line of IKBD ACIA */ 175 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 176 } else if (strcmp(p, "midi") == 0) { 177 /* RTS line of MIDI ACIA */ 178 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 179 } else if (strcmp(p, "snd6") == 0) { 180 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 181 } else if (strcmp(p, "snd7") == 0) { 182 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 183 } 184 } 185 return 0; 186 } 187 188 early_param("switches", atari_switches_setup); 189 190 191 /* 192 * Setup the Atari configuration info 193 */ 194 195 void __init config_atari(void) 196 { 197 unsigned short tos_version; 198 199 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 200 201 /* Change size of I/O space from 64KB to 4GB. */ 202 ioport_resource.end = 0xFFFFFFFF; 203 204 mach_sched_init = atari_sched_init; 205 mach_init_IRQ = atari_init_IRQ; 206 mach_get_model = atari_get_model; 207 mach_get_hardware_list = atari_get_hardware_list; 208 arch_gettimeoffset = atari_gettimeoffset; 209 mach_reset = atari_reset; 210 mach_max_dma_address = 0xffffff; 211 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 212 mach_beep = atari_mksound; 213 #endif 214 #ifdef CONFIG_HEARTBEAT 215 mach_heartbeat = atari_heartbeat; 216 #endif 217 218 /* Set switches as requested by the user */ 219 if (atari_switches & ATARI_SWITCH_IKBD) 220 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 221 if (atari_switches & ATARI_SWITCH_MIDI) 222 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 223 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 224 sound_ym.rd_data_reg_sel = 14; 225 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 226 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 227 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 228 } 229 230 /* ++bjoern: 231 * Determine hardware present 232 */ 233 234 pr_info("Atari hardware found:"); 235 if (MACH_IS_MEDUSA) { 236 /* There's no Atari video hardware on the Medusa, but all the 237 * addresses below generate a DTACK so no bus error occurs! */ 238 } else if (hwreg_present(f030_xreg)) { 239 ATARIHW_SET(VIDEL_SHIFTER); 240 pr_cont(" VIDEL"); 241 /* This is a temporary hack: If there is Falcon video 242 * hardware, we assume that the ST-DMA serves SCSI instead of 243 * ACSI. In the future, there should be a better method for 244 * this... 245 */ 246 ATARIHW_SET(ST_SCSI); 247 pr_cont(" STDMA-SCSI"); 248 } else if (hwreg_present(tt_palette)) { 249 ATARIHW_SET(TT_SHIFTER); 250 pr_cont(" TT_SHIFTER"); 251 } else if (hwreg_present(&shifter.bas_hi)) { 252 if (hwreg_present(&shifter.bas_lo) && 253 (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { 254 ATARIHW_SET(EXTD_SHIFTER); 255 pr_cont(" EXTD_SHIFTER"); 256 } else { 257 ATARIHW_SET(STND_SHIFTER); 258 pr_cont(" STND_SHIFTER"); 259 } 260 } 261 if (hwreg_present(&st_mfp.par_dt_reg)) { 262 ATARIHW_SET(ST_MFP); 263 pr_cont(" ST_MFP"); 264 } 265 if (hwreg_present(&tt_mfp.par_dt_reg)) { 266 ATARIHW_SET(TT_MFP); 267 pr_cont(" TT_MFP"); 268 } 269 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 270 ATARIHW_SET(SCSI_DMA); 271 pr_cont(" TT_SCSI_DMA"); 272 } 273 /* 274 * The ST-DMA address registers aren't readable 275 * on all Medusas, so the test below may fail 276 */ 277 if (MACH_IS_MEDUSA || 278 (hwreg_present(&st_dma.dma_vhi) && 279 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 280 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 281 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 282 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 283 ATARIHW_SET(EXTD_DMA); 284 pr_cont(" EXTD_DMA"); 285 } 286 if (hwreg_present(&tt_scsi.scsi_data)) { 287 ATARIHW_SET(TT_SCSI); 288 pr_cont(" TT_SCSI"); 289 } 290 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 291 ATARIHW_SET(YM_2149); 292 pr_cont(" YM2149"); 293 } 294 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 295 ATARIHW_SET(PCM_8BIT); 296 pr_cont(" PCM"); 297 } 298 if (hwreg_present(&falcon_codec.unused5)) { 299 ATARIHW_SET(CODEC); 300 pr_cont(" CODEC"); 301 } 302 if (hwreg_present(&dsp56k_host_interface.icr)) { 303 ATARIHW_SET(DSP56K); 304 pr_cont(" DSP56K"); 305 } 306 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 307 #if 0 308 /* This test sucks! Who knows some better? */ 309 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 310 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 311 #else 312 !MACH_IS_MEDUSA 313 #endif 314 ) { 315 ATARIHW_SET(SCC_DMA); 316 pr_cont(" SCC_DMA"); 317 } 318 if (scc_test(&atari_scc.cha_a_ctrl)) { 319 ATARIHW_SET(SCC); 320 pr_cont(" SCC"); 321 } 322 if (scc_test(&st_escc.cha_b_ctrl)) { 323 ATARIHW_SET(ST_ESCC); 324 pr_cont(" ST_ESCC"); 325 } 326 if (hwreg_present(&tt_scu.sys_mask)) { 327 ATARIHW_SET(SCU); 328 /* Assume a VME bus if there's a SCU */ 329 ATARIHW_SET(VME); 330 pr_cont(" VME SCU"); 331 } 332 if (hwreg_present((void *)(0xffff9210))) { 333 ATARIHW_SET(ANALOG_JOY); 334 pr_cont(" ANALOG_JOY"); 335 } 336 if (hwreg_present(blitter.halftone)) { 337 ATARIHW_SET(BLITTER); 338 pr_cont(" BLITTER"); 339 } 340 if (hwreg_present((void *)0xfff00039)) { 341 ATARIHW_SET(IDE); 342 pr_cont(" IDE"); 343 } 344 #if 1 /* This maybe wrong */ 345 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 346 hwreg_present(&tt_microwire.mask) && 347 (tt_microwire.mask = 0x7ff, 348 udelay(1), 349 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 350 udelay(1), 351 tt_microwire.data != 0)) { 352 ATARIHW_SET(MICROWIRE); 353 while (tt_microwire.mask != 0x7ff) 354 ; 355 pr_cont(" MICROWIRE"); 356 } 357 #endif 358 if (hwreg_present(&tt_rtc.regsel)) { 359 ATARIHW_SET(TT_CLK); 360 pr_cont(" TT_CLK"); 361 mach_hwclk = atari_tt_hwclk; 362 } 363 if (hwreg_present(&mste_rtc.sec_ones)) { 364 ATARIHW_SET(MSTE_CLK); 365 pr_cont(" MSTE_CLK"); 366 mach_hwclk = atari_mste_hwclk; 367 } 368 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 369 hwreg_write(&dma_wd.fdc_speed, 0)) { 370 ATARIHW_SET(FDCSPEED); 371 pr_cont(" FDC_SPEED"); 372 } 373 if (!ATARIHW_PRESENT(ST_SCSI)) { 374 ATARIHW_SET(ACSI); 375 pr_cont(" ACSI"); 376 } 377 pr_cont("\n"); 378 379 if (CPU_IS_040_OR_060) 380 /* Now it seems to be safe to turn of the tt0 transparent 381 * translation (the one that must not be turned off in 382 * head.S...) 383 */ 384 asm volatile ("\n" 385 " moveq #0,%%d0\n" 386 " .chip 68040\n" 387 " movec %%d0,%%itt0\n" 388 " movec %%d0,%%dtt0\n" 389 " .chip 68k" 390 : /* no outputs */ 391 : /* no inputs */ 392 : "d0"); 393 394 /* allocator for memory that must reside in st-ram */ 395 atari_stram_init(); 396 397 /* Set up a mapping for the VMEbus address region: 398 * 399 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 400 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 401 * 0xfe000000 virt., because this can be done with a single 402 * transparent translation. On the 68040, lots of often unused 403 * page tables would be needed otherwise. On a MegaSTE or similar, 404 * the highest byte is stripped off by hardware due to the 24 bit 405 * design of the bus. 406 */ 407 408 if (CPU_IS_020_OR_030) { 409 unsigned long tt1_val; 410 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 411 * inhibit, read and write, FDC mask = 3, 412 * FDC val = 4 -> Supervisor only */ 413 asm volatile ("\n" 414 " .chip 68030\n" 415 " pmove %0,%/tt1\n" 416 " .chip 68k" 417 : : "m" (tt1_val)); 418 } else { 419 asm volatile ("\n" 420 " .chip 68040\n" 421 " movec %0,%%itt1\n" 422 " movec %0,%%dtt1\n" 423 " .chip 68k" 424 : 425 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 426 * supervisor only, non-cacheable/ 427 * serialized, writable */ 428 429 } 430 431 /* Fetch tos version at Physical 2 */ 432 /* 433 * We my not be able to access this address if the kernel is 434 * loaded to st ram, since the first page is unmapped. On the 435 * Medusa this is always the case and there is nothing we can do 436 * about this, so we just assume the smaller offset. For the TT 437 * we use the fact that in head.S we have set up a mapping 438 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 439 * in the last 16MB of the address space. 440 */ 441 tos_version = (MACH_IS_MEDUSA) ? 442 0xfff : *(unsigned short *)0xff000002; 443 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 444 } 445 446 #ifdef CONFIG_HEARTBEAT 447 static void atari_heartbeat(int on) 448 { 449 unsigned char tmp; 450 unsigned long flags; 451 452 if (atari_dont_touch_floppy_select) 453 return; 454 455 local_irq_save(flags); 456 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 457 tmp = sound_ym.rd_data_reg_sel; 458 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 459 local_irq_restore(flags); 460 } 461 #endif 462 463 /* ++roman: 464 * 465 * This function does a reset on machines that lack the ability to 466 * assert the processor's _RESET signal somehow via hardware. It is 467 * based on the fact that you can find the initial SP and PC values 468 * after a reset at physical addresses 0 and 4. This works pretty well 469 * for Atari machines, since the lowest 8 bytes of physical memory are 470 * really ROM (mapped by hardware). For other 680x0 machines: don't 471 * know if it works... 472 * 473 * To get the values at addresses 0 and 4, the MMU better is turned 474 * off first. After that, we have to jump into physical address space 475 * (the PC before the pmove statement points to the virtual address of 476 * the code). Getting that physical address is not hard, but the code 477 * becomes a bit complex since I've tried to ensure that the jump 478 * statement after the pmove is in the cache already (otherwise the 479 * processor can't fetch it!). For that, the code first jumps to the 480 * jump statement with the (virtual) address of the pmove section in 481 * an address register . The jump statement is surely in the cache 482 * now. After that, that physical address of the reset code is loaded 483 * into the same address register, pmove is done and the same jump 484 * statements goes to the reset code. Since there are not many 485 * statements between the two jumps, I hope it stays in the cache. 486 * 487 * The C code makes heavy use of the GCC features that you can get the 488 * address of a C label. No hope to compile this with another compiler 489 * than GCC! 490 */ 491 492 /* ++andreas: no need for complicated code, just depend on prefetch */ 493 494 static void atari_reset(void) 495 { 496 long tc_val = 0; 497 long reset_addr; 498 499 /* 500 * On the Medusa, phys. 0x4 may contain garbage because it's no 501 * ROM. See above for explanation why we cannot use PTOV(4). 502 */ 503 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 504 *(unsigned long *) 0xff000004; 505 506 /* reset ACIA for switch off OverScan, if it's active */ 507 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 508 acia.key_ctrl = ACIA_RESET; 509 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 510 acia.mid_ctrl = ACIA_RESET; 511 512 /* processor independent: turn off interrupts and reset the VBR; 513 * the caches must be left enabled, else prefetching the final jump 514 * instruction doesn't work. 515 */ 516 local_irq_disable(); 517 asm volatile ("movec %0,%%vbr" 518 : : "d" (0)); 519 520 if (CPU_IS_040_OR_060) { 521 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 522 if (CPU_IS_060) { 523 /* 68060: clear PCR to turn off superscalar operation */ 524 asm volatile ("\n" 525 " .chip 68060\n" 526 " movec %0,%%pcr\n" 527 " .chip 68k" 528 : : "d" (0)); 529 } 530 531 asm volatile ("\n" 532 " move.l %0,%%d0\n" 533 " and.l #0xff000000,%%d0\n" 534 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 535 " .chip 68040\n" 536 " movec %%d0,%%itt0\n" 537 " movec %%d0,%%dtt0\n" 538 " .chip 68k\n" 539 " jmp %0@" 540 : : "a" (jmp_addr040) 541 : "d0"); 542 jmp_addr_label040: 543 asm volatile ("\n" 544 " moveq #0,%%d0\n" 545 " nop\n" 546 " .chip 68040\n" 547 " cinva %%bc\n" 548 " nop\n" 549 " pflusha\n" 550 " nop\n" 551 " movec %%d0,%%tc\n" 552 " nop\n" 553 /* the following setup of transparent translations is needed on the 554 * Afterburner040 to successfully reboot. Other machines shouldn't 555 * care about a different tt regs setup, they also didn't care in 556 * the past that the regs weren't turned off. */ 557 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 558 " movec %%d0,%%itt0\n" 559 " movec %%d0,%%itt1\n" 560 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 561 " movec %%d0,%%dtt0\n" 562 " movec %%d0,%%dtt1\n" 563 " .chip 68k\n" 564 " jmp %0@" 565 : /* no outputs */ 566 : "a" (reset_addr) 567 : "d0"); 568 } else 569 asm volatile ("\n" 570 " pmove %0,%%tc\n" 571 " jmp %1@" 572 : /* no outputs */ 573 : "m" (tc_val), "a" (reset_addr)); 574 } 575 576 577 static void atari_get_model(char *model) 578 { 579 strcpy(model, "Atari "); 580 switch (atari_mch_cookie >> 16) { 581 case ATARI_MCH_ST: 582 if (ATARIHW_PRESENT(MSTE_CLK)) 583 strcat(model, "Mega ST"); 584 else 585 strcat(model, "ST"); 586 break; 587 case ATARI_MCH_STE: 588 if (MACH_IS_MSTE) 589 strcat(model, "Mega STE"); 590 else 591 strcat(model, "STE"); 592 break; 593 case ATARI_MCH_TT: 594 if (MACH_IS_MEDUSA) 595 /* Medusa has TT _MCH cookie */ 596 strcat(model, "Medusa"); 597 else 598 strcat(model, "TT"); 599 break; 600 case ATARI_MCH_FALCON: 601 strcat(model, "Falcon"); 602 if (MACH_IS_AB40) 603 strcat(model, " (with Afterburner040)"); 604 break; 605 default: 606 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 607 atari_mch_cookie); 608 break; 609 } 610 } 611 612 613 static void atari_get_hardware_list(struct seq_file *m) 614 { 615 int i; 616 617 for (i = 0; i < m68k_num_memory; i++) 618 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 619 m68k_memory[i].size >> 20, m68k_memory[i].addr, 620 (m68k_memory[i].addr & 0xff000000 ? 621 "alternate RAM" : "ST-RAM")); 622 623 #define ATARIHW_ANNOUNCE(name, str) \ 624 if (ATARIHW_PRESENT(name)) \ 625 seq_printf(m, "\t%s\n", str) 626 627 seq_puts(m, "Detected hardware:\n"); 628 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 629 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 630 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 631 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 632 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 633 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 634 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 635 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 636 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 637 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 638 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 639 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 640 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 641 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 642 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 643 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 644 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 645 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 646 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 647 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 648 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 649 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 650 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 651 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 652 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 653 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 654 ATARIHW_ANNOUNCE(VME, "VME Bus"); 655 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 656 } 657 658 /* 659 * MSch: initial platform device support for Atari, 660 * required for EtherNAT/EtherNEC/NetUSBee drivers 661 */ 662 663 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 664 static void isp1160_delay(struct device *dev, int delay) 665 { 666 ndelay(delay); 667 } 668 #endif 669 670 #ifdef CONFIG_ATARI_ETHERNAT 671 /* 672 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 673 */ 674 675 #define ATARI_ETHERNAT_IRQ 140 676 677 static struct resource smc91x_resources[] = { 678 [0] = { 679 .name = "smc91x-regs", 680 .start = ATARI_ETHERNAT_PHYS_ADDR, 681 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 682 .flags = IORESOURCE_MEM, 683 }, 684 [1] = { 685 .name = "smc91x-irq", 686 .start = ATARI_ETHERNAT_IRQ, 687 .end = ATARI_ETHERNAT_IRQ, 688 .flags = IORESOURCE_IRQ, 689 }, 690 }; 691 692 static struct platform_device smc91x_device = { 693 .name = "smc91x", 694 .id = -1, 695 .num_resources = ARRAY_SIZE(smc91x_resources), 696 .resource = smc91x_resources, 697 }; 698 699 /* 700 * ISP 1160 - using the isp116x-hcd module 701 */ 702 703 #define ATARI_USB_PHYS_ADDR 0x80000012 704 #define ATARI_USB_IRQ 139 705 706 static struct resource isp1160_resources[] = { 707 [0] = { 708 .name = "isp1160-data", 709 .start = ATARI_USB_PHYS_ADDR, 710 .end = ATARI_USB_PHYS_ADDR + 0x1, 711 .flags = IORESOURCE_MEM, 712 }, 713 [1] = { 714 .name = "isp1160-regs", 715 .start = ATARI_USB_PHYS_ADDR + 0x4, 716 .end = ATARI_USB_PHYS_ADDR + 0x5, 717 .flags = IORESOURCE_MEM, 718 }, 719 [2] = { 720 .name = "isp1160-irq", 721 .start = ATARI_USB_IRQ, 722 .end = ATARI_USB_IRQ, 723 .flags = IORESOURCE_IRQ, 724 }, 725 }; 726 727 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 728 static struct isp116x_platform_data isp1160_platform_data = { 729 /* Enable internal resistors on downstream ports */ 730 .sel15Kres = 1, 731 /* On-chip overcurrent protection */ 732 .oc_enable = 1, 733 /* INT output polarity */ 734 .int_act_high = 1, 735 /* INT edge or level triggered */ 736 .int_edge_triggered = 0, 737 738 /* WAKEUP pin connected - NOT SUPPORTED */ 739 /* .remote_wakeup_connected = 0, */ 740 /* Wakeup by devices on usb bus enabled */ 741 .remote_wakeup_enable = 0, 742 .delay = isp1160_delay, 743 }; 744 745 static struct platform_device isp1160_device = { 746 .name = "isp116x-hcd", 747 .id = 0, 748 .num_resources = ARRAY_SIZE(isp1160_resources), 749 .resource = isp1160_resources, 750 .dev = { 751 .platform_data = &isp1160_platform_data, 752 }, 753 }; 754 755 static struct platform_device *atari_ethernat_devices[] __initdata = { 756 &smc91x_device, 757 &isp1160_device 758 }; 759 #endif /* CONFIG_ATARI_ETHERNAT */ 760 761 #ifdef CONFIG_ATARI_ETHERNEC 762 /* 763 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 764 * handled by ne.c driver 765 */ 766 767 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 768 #define ATARI_ETHERNEC_BASE 0x300 769 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 770 771 static struct resource rtl8019_resources[] = { 772 [0] = { 773 .name = "rtl8019-regs", 774 .start = ATARI_ETHERNEC_BASE, 775 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 776 .flags = IORESOURCE_IO, 777 }, 778 [1] = { 779 .name = "rtl8019-irq", 780 .start = ATARI_ETHERNEC_IRQ, 781 .end = ATARI_ETHERNEC_IRQ, 782 .flags = IORESOURCE_IRQ, 783 }, 784 }; 785 786 static struct platform_device rtl8019_device = { 787 .name = "ne", 788 .id = -1, 789 .num_resources = ARRAY_SIZE(rtl8019_resources), 790 .resource = rtl8019_resources, 791 }; 792 793 /* 794 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 795 */ 796 797 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 798 #define ATARI_NETUSBEE_BASE 0x340 799 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 800 801 static struct resource netusbee_resources[] = { 802 [0] = { 803 .name = "isp1160-data", 804 .start = ATARI_NETUSBEE_BASE, 805 .end = ATARI_NETUSBEE_BASE + 0x1, 806 .flags = IORESOURCE_MEM, 807 }, 808 [1] = { 809 .name = "isp1160-regs", 810 .start = ATARI_NETUSBEE_BASE + 0x20, 811 .end = ATARI_NETUSBEE_BASE + 0x21, 812 .flags = IORESOURCE_MEM, 813 }, 814 [2] = { 815 .name = "isp1160-irq", 816 .start = ATARI_NETUSBEE_IRQ, 817 .end = ATARI_NETUSBEE_IRQ, 818 .flags = IORESOURCE_IRQ, 819 }, 820 }; 821 822 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 823 static struct isp116x_platform_data netusbee_platform_data = { 824 /* Enable internal resistors on downstream ports */ 825 .sel15Kres = 1, 826 /* On-chip overcurrent protection */ 827 .oc_enable = 1, 828 /* INT output polarity */ 829 .int_act_high = 1, 830 /* INT edge or level triggered */ 831 .int_edge_triggered = 0, 832 833 /* WAKEUP pin connected - NOT SUPPORTED */ 834 /* .remote_wakeup_connected = 0, */ 835 /* Wakeup by devices on usb bus enabled */ 836 .remote_wakeup_enable = 0, 837 .delay = isp1160_delay, 838 }; 839 840 static struct platform_device netusbee_device = { 841 .name = "isp116x-hcd", 842 .id = 1, 843 .num_resources = ARRAY_SIZE(netusbee_resources), 844 .resource = netusbee_resources, 845 .dev = { 846 .platform_data = &netusbee_platform_data, 847 }, 848 }; 849 850 static struct platform_device *atari_netusbee_devices[] __initdata = { 851 &rtl8019_device, 852 &netusbee_device 853 }; 854 #endif /* CONFIG_ATARI_ETHERNEC */ 855 856 #if IS_ENABLED(CONFIG_ATARI_SCSI) 857 static const struct resource atari_scsi_st_rsrc[] __initconst = { 858 { 859 .flags = IORESOURCE_IRQ, 860 .start = IRQ_MFP_FSCSI, 861 .end = IRQ_MFP_FSCSI, 862 }, 863 }; 864 865 static const struct resource atari_scsi_tt_rsrc[] __initconst = { 866 { 867 .flags = IORESOURCE_IRQ, 868 .start = IRQ_TT_MFP_SCSI, 869 .end = IRQ_TT_MFP_SCSI, 870 }, 871 }; 872 #endif 873 874 int __init atari_platform_init(void) 875 { 876 int rv = 0; 877 878 if (!MACH_IS_ATARI) 879 return -ENODEV; 880 881 #ifdef CONFIG_ATARI_ETHERNAT 882 { 883 unsigned char *enatc_virt; 884 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 885 if (hwreg_present(enatc_virt)) { 886 rv = platform_add_devices(atari_ethernat_devices, 887 ARRAY_SIZE(atari_ethernat_devices)); 888 } 889 iounmap(enatc_virt); 890 } 891 #endif 892 893 #ifdef CONFIG_ATARI_ETHERNEC 894 { 895 int error; 896 unsigned char *enec_virt; 897 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 898 if (hwreg_present(enec_virt)) { 899 error = platform_add_devices(atari_netusbee_devices, 900 ARRAY_SIZE(atari_netusbee_devices)); 901 if (error && !rv) 902 rv = error; 903 } 904 iounmap(enec_virt); 905 } 906 #endif 907 908 #if IS_ENABLED(CONFIG_ATARI_SCSI) 909 if (ATARIHW_PRESENT(ST_SCSI)) 910 platform_device_register_simple("atari_scsi", -1, 911 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc)); 912 else if (ATARIHW_PRESENT(TT_SCSI)) 913 platform_device_register_simple("atari_scsi", -1, 914 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc)); 915 #endif 916 917 return rv; 918 } 919 920 arch_initcall(atari_platform_init); 921