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