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 extern int atari_mste_set_clock_mmss (unsigned long); 85 extern int atari_tt_set_clock_mmss (unsigned long); 86 87 88 /* ++roman: This is a more elaborate test for an SCC chip, since the plain 89 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 90 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 91 * resides generate DTACK without the chip, too. 92 * The method is to write values into the interrupt vector register, that 93 * should be readable without trouble (from channel A!). 94 */ 95 96 static int __init scc_test(volatile char *ctla) 97 { 98 if (!hwreg_present(ctla)) 99 return 0; 100 MFPDELAY(); 101 102 *ctla = 2; 103 MFPDELAY(); 104 *ctla = 0x40; 105 MFPDELAY(); 106 107 *ctla = 2; 108 MFPDELAY(); 109 if (*ctla != 0x40) 110 return 0; 111 MFPDELAY(); 112 113 *ctla = 2; 114 MFPDELAY(); 115 *ctla = 0x60; 116 MFPDELAY(); 117 118 *ctla = 2; 119 MFPDELAY(); 120 if (*ctla != 0x60) 121 return 0; 122 123 return 1; 124 } 125 126 127 /* 128 * Parse an Atari-specific record in the bootinfo 129 */ 130 131 int __init atari_parse_bootinfo(const struct bi_record *record) 132 { 133 int unknown = 0; 134 const void *data = record->data; 135 136 switch (be16_to_cpu(record->tag)) { 137 case BI_ATARI_MCH_COOKIE: 138 atari_mch_cookie = be32_to_cpup(data); 139 break; 140 case BI_ATARI_MCH_TYPE: 141 atari_mch_type = be32_to_cpup(data); 142 break; 143 default: 144 unknown = 1; 145 break; 146 } 147 return unknown; 148 } 149 150 151 /* Parse the Atari-specific switches= option. */ 152 static int __init atari_switches_setup(char *str) 153 { 154 char switches[strlen(str) + 1]; 155 char *p; 156 int ovsc_shift; 157 char *args = switches; 158 159 if (!MACH_IS_ATARI) 160 return 0; 161 162 /* copy string to local array, strsep works destructively... */ 163 strcpy(switches, str); 164 atari_switches = 0; 165 166 /* parse the options */ 167 while ((p = strsep(&args, ",")) != NULL) { 168 if (!*p) 169 continue; 170 ovsc_shift = 0; 171 if (strncmp(p, "ov_", 3) == 0) { 172 p += 3; 173 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 174 } 175 176 if (strcmp(p, "ikbd") == 0) { 177 /* RTS line of IKBD ACIA */ 178 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 179 } else if (strcmp(p, "midi") == 0) { 180 /* RTS line of MIDI ACIA */ 181 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 182 } else if (strcmp(p, "snd6") == 0) { 183 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 184 } else if (strcmp(p, "snd7") == 0) { 185 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 186 } 187 } 188 return 0; 189 } 190 191 early_param("switches", atari_switches_setup); 192 193 194 /* 195 * Setup the Atari configuration info 196 */ 197 198 void __init config_atari(void) 199 { 200 unsigned short tos_version; 201 202 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 203 204 /* Change size of I/O space from 64KB to 4GB. */ 205 ioport_resource.end = 0xFFFFFFFF; 206 207 mach_sched_init = atari_sched_init; 208 mach_init_IRQ = atari_init_IRQ; 209 mach_get_model = atari_get_model; 210 mach_get_hardware_list = atari_get_hardware_list; 211 arch_gettimeoffset = atari_gettimeoffset; 212 mach_reset = atari_reset; 213 mach_max_dma_address = 0xffffff; 214 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 215 mach_beep = atari_mksound; 216 #endif 217 #ifdef CONFIG_HEARTBEAT 218 mach_heartbeat = atari_heartbeat; 219 #endif 220 221 /* Set switches as requested by the user */ 222 if (atari_switches & ATARI_SWITCH_IKBD) 223 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 224 if (atari_switches & ATARI_SWITCH_MIDI) 225 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 226 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 227 sound_ym.rd_data_reg_sel = 14; 228 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 229 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 230 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 231 } 232 233 /* ++bjoern: 234 * Determine hardware present 235 */ 236 237 printk("Atari hardware found: "); 238 if (MACH_IS_MEDUSA) { 239 /* There's no Atari video hardware on the Medusa, but all the 240 * addresses below generate a DTACK so no bus error occurs! */ 241 } else if (hwreg_present(f030_xreg)) { 242 ATARIHW_SET(VIDEL_SHIFTER); 243 printk("VIDEL "); 244 /* This is a temporary hack: If there is Falcon video 245 * hardware, we assume that the ST-DMA serves SCSI instead of 246 * ACSI. In the future, there should be a better method for 247 * this... 248 */ 249 ATARIHW_SET(ST_SCSI); 250 printk("STDMA-SCSI "); 251 } else if (hwreg_present(tt_palette)) { 252 ATARIHW_SET(TT_SHIFTER); 253 printk("TT_SHIFTER "); 254 } else if (hwreg_present(&shifter.bas_hi)) { 255 if (hwreg_present(&shifter.bas_lo) && 256 (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { 257 ATARIHW_SET(EXTD_SHIFTER); 258 printk("EXTD_SHIFTER "); 259 } else { 260 ATARIHW_SET(STND_SHIFTER); 261 printk("STND_SHIFTER "); 262 } 263 } 264 if (hwreg_present(&st_mfp.par_dt_reg)) { 265 ATARIHW_SET(ST_MFP); 266 printk("ST_MFP "); 267 } 268 if (hwreg_present(&tt_mfp.par_dt_reg)) { 269 ATARIHW_SET(TT_MFP); 270 printk("TT_MFP "); 271 } 272 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 273 ATARIHW_SET(SCSI_DMA); 274 printk("TT_SCSI_DMA "); 275 } 276 /* 277 * The ST-DMA address registers aren't readable 278 * on all Medusas, so the test below may fail 279 */ 280 if (MACH_IS_MEDUSA || 281 (hwreg_present(&st_dma.dma_vhi) && 282 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 283 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 284 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 285 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 286 ATARIHW_SET(EXTD_DMA); 287 printk("EXTD_DMA "); 288 } 289 if (hwreg_present(&tt_scsi.scsi_data)) { 290 ATARIHW_SET(TT_SCSI); 291 printk("TT_SCSI "); 292 } 293 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 294 ATARIHW_SET(YM_2149); 295 printk("YM2149 "); 296 } 297 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 298 ATARIHW_SET(PCM_8BIT); 299 printk("PCM "); 300 } 301 if (hwreg_present(&falcon_codec.unused5)) { 302 ATARIHW_SET(CODEC); 303 printk("CODEC "); 304 } 305 if (hwreg_present(&dsp56k_host_interface.icr)) { 306 ATARIHW_SET(DSP56K); 307 printk("DSP56K "); 308 } 309 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 310 #if 0 311 /* This test sucks! Who knows some better? */ 312 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 313 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 314 #else 315 !MACH_IS_MEDUSA 316 #endif 317 ) { 318 ATARIHW_SET(SCC_DMA); 319 printk("SCC_DMA "); 320 } 321 if (scc_test(&atari_scc.cha_a_ctrl)) { 322 ATARIHW_SET(SCC); 323 printk("SCC "); 324 } 325 if (scc_test(&st_escc.cha_b_ctrl)) { 326 ATARIHW_SET(ST_ESCC); 327 printk("ST_ESCC "); 328 } 329 if (hwreg_present(&tt_scu.sys_mask)) { 330 ATARIHW_SET(SCU); 331 /* Assume a VME bus if there's a SCU */ 332 ATARIHW_SET(VME); 333 printk("VME SCU "); 334 } 335 if (hwreg_present((void *)(0xffff9210))) { 336 ATARIHW_SET(ANALOG_JOY); 337 printk("ANALOG_JOY "); 338 } 339 if (hwreg_present(blitter.halftone)) { 340 ATARIHW_SET(BLITTER); 341 printk("BLITTER "); 342 } 343 if (hwreg_present((void *)0xfff00039)) { 344 ATARIHW_SET(IDE); 345 printk("IDE "); 346 } 347 #if 1 /* This maybe wrong */ 348 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 349 hwreg_present(&tt_microwire.mask) && 350 (tt_microwire.mask = 0x7ff, 351 udelay(1), 352 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 353 udelay(1), 354 tt_microwire.data != 0)) { 355 ATARIHW_SET(MICROWIRE); 356 while (tt_microwire.mask != 0x7ff) 357 ; 358 printk("MICROWIRE "); 359 } 360 #endif 361 if (hwreg_present(&tt_rtc.regsel)) { 362 ATARIHW_SET(TT_CLK); 363 printk("TT_CLK "); 364 mach_hwclk = atari_tt_hwclk; 365 mach_set_clock_mmss = atari_tt_set_clock_mmss; 366 } 367 if (hwreg_present(&mste_rtc.sec_ones)) { 368 ATARIHW_SET(MSTE_CLK); 369 printk("MSTE_CLK "); 370 mach_hwclk = atari_mste_hwclk; 371 mach_set_clock_mmss = atari_mste_set_clock_mmss; 372 } 373 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 374 hwreg_write(&dma_wd.fdc_speed, 0)) { 375 ATARIHW_SET(FDCSPEED); 376 printk("FDC_SPEED "); 377 } 378 if (!ATARIHW_PRESENT(ST_SCSI)) { 379 ATARIHW_SET(ACSI); 380 printk("ACSI "); 381 } 382 printk("\n"); 383 384 if (CPU_IS_040_OR_060) 385 /* Now it seems to be safe to turn of the tt0 transparent 386 * translation (the one that must not be turned off in 387 * head.S...) 388 */ 389 asm volatile ("\n" 390 " moveq #0,%%d0\n" 391 " .chip 68040\n" 392 " movec %%d0,%%itt0\n" 393 " movec %%d0,%%dtt0\n" 394 " .chip 68k" 395 : /* no outputs */ 396 : /* no inputs */ 397 : "d0"); 398 399 /* allocator for memory that must reside in st-ram */ 400 atari_stram_init(); 401 402 /* Set up a mapping for the VMEbus address region: 403 * 404 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 405 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 406 * 0xfe000000 virt., because this can be done with a single 407 * transparent translation. On the 68040, lots of often unused 408 * page tables would be needed otherwise. On a MegaSTE or similar, 409 * the highest byte is stripped off by hardware due to the 24 bit 410 * design of the bus. 411 */ 412 413 if (CPU_IS_020_OR_030) { 414 unsigned long tt1_val; 415 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 416 * inhibit, read and write, FDC mask = 3, 417 * FDC val = 4 -> Supervisor only */ 418 asm volatile ("\n" 419 " .chip 68030\n" 420 " pmove %0,%/tt1\n" 421 " .chip 68k" 422 : : "m" (tt1_val)); 423 } else { 424 asm volatile ("\n" 425 " .chip 68040\n" 426 " movec %0,%%itt1\n" 427 " movec %0,%%dtt1\n" 428 " .chip 68k" 429 : 430 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 431 * supervisor only, non-cacheable/ 432 * serialized, writable */ 433 434 } 435 436 /* Fetch tos version at Physical 2 */ 437 /* 438 * We my not be able to access this address if the kernel is 439 * loaded to st ram, since the first page is unmapped. On the 440 * Medusa this is always the case and there is nothing we can do 441 * about this, so we just assume the smaller offset. For the TT 442 * we use the fact that in head.S we have set up a mapping 443 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 444 * in the last 16MB of the address space. 445 */ 446 tos_version = (MACH_IS_MEDUSA) ? 447 0xfff : *(unsigned short *)0xff000002; 448 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 449 } 450 451 #ifdef CONFIG_HEARTBEAT 452 static void atari_heartbeat(int on) 453 { 454 unsigned char tmp; 455 unsigned long flags; 456 457 if (atari_dont_touch_floppy_select) 458 return; 459 460 local_irq_save(flags); 461 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 462 tmp = sound_ym.rd_data_reg_sel; 463 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 464 local_irq_restore(flags); 465 } 466 #endif 467 468 /* ++roman: 469 * 470 * This function does a reset on machines that lack the ability to 471 * assert the processor's _RESET signal somehow via hardware. It is 472 * based on the fact that you can find the initial SP and PC values 473 * after a reset at physical addresses 0 and 4. This works pretty well 474 * for Atari machines, since the lowest 8 bytes of physical memory are 475 * really ROM (mapped by hardware). For other 680x0 machines: don't 476 * know if it works... 477 * 478 * To get the values at addresses 0 and 4, the MMU better is turned 479 * off first. After that, we have to jump into physical address space 480 * (the PC before the pmove statement points to the virtual address of 481 * the code). Getting that physical address is not hard, but the code 482 * becomes a bit complex since I've tried to ensure that the jump 483 * statement after the pmove is in the cache already (otherwise the 484 * processor can't fetch it!). For that, the code first jumps to the 485 * jump statement with the (virtual) address of the pmove section in 486 * an address register . The jump statement is surely in the cache 487 * now. After that, that physical address of the reset code is loaded 488 * into the same address register, pmove is done and the same jump 489 * statements goes to the reset code. Since there are not many 490 * statements between the two jumps, I hope it stays in the cache. 491 * 492 * The C code makes heavy use of the GCC features that you can get the 493 * address of a C label. No hope to compile this with another compiler 494 * than GCC! 495 */ 496 497 /* ++andreas: no need for complicated code, just depend on prefetch */ 498 499 static void atari_reset(void) 500 { 501 long tc_val = 0; 502 long reset_addr; 503 504 /* 505 * On the Medusa, phys. 0x4 may contain garbage because it's no 506 * ROM. See above for explanation why we cannot use PTOV(4). 507 */ 508 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 509 *(unsigned long *) 0xff000004; 510 511 /* reset ACIA for switch off OverScan, if it's active */ 512 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 513 acia.key_ctrl = ACIA_RESET; 514 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 515 acia.mid_ctrl = ACIA_RESET; 516 517 /* processor independent: turn off interrupts and reset the VBR; 518 * the caches must be left enabled, else prefetching the final jump 519 * instruction doesn't work. 520 */ 521 local_irq_disable(); 522 asm volatile ("movec %0,%%vbr" 523 : : "d" (0)); 524 525 if (CPU_IS_040_OR_060) { 526 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 527 if (CPU_IS_060) { 528 /* 68060: clear PCR to turn off superscalar operation */ 529 asm volatile ("\n" 530 " .chip 68060\n" 531 " movec %0,%%pcr\n" 532 " .chip 68k" 533 : : "d" (0)); 534 } 535 536 asm volatile ("\n" 537 " move.l %0,%%d0\n" 538 " and.l #0xff000000,%%d0\n" 539 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 540 " .chip 68040\n" 541 " movec %%d0,%%itt0\n" 542 " movec %%d0,%%dtt0\n" 543 " .chip 68k\n" 544 " jmp %0@" 545 : : "a" (jmp_addr040) 546 : "d0"); 547 jmp_addr_label040: 548 asm volatile ("\n" 549 " moveq #0,%%d0\n" 550 " nop\n" 551 " .chip 68040\n" 552 " cinva %%bc\n" 553 " nop\n" 554 " pflusha\n" 555 " nop\n" 556 " movec %%d0,%%tc\n" 557 " nop\n" 558 /* the following setup of transparent translations is needed on the 559 * Afterburner040 to successfully reboot. Other machines shouldn't 560 * care about a different tt regs setup, they also didn't care in 561 * the past that the regs weren't turned off. */ 562 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 563 " movec %%d0,%%itt0\n" 564 " movec %%d0,%%itt1\n" 565 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 566 " movec %%d0,%%dtt0\n" 567 " movec %%d0,%%dtt1\n" 568 " .chip 68k\n" 569 " jmp %0@" 570 : /* no outputs */ 571 : "a" (reset_addr) 572 : "d0"); 573 } else 574 asm volatile ("\n" 575 " pmove %0,%%tc\n" 576 " jmp %1@" 577 : /* no outputs */ 578 : "m" (tc_val), "a" (reset_addr)); 579 } 580 581 582 static void atari_get_model(char *model) 583 { 584 strcpy(model, "Atari "); 585 switch (atari_mch_cookie >> 16) { 586 case ATARI_MCH_ST: 587 if (ATARIHW_PRESENT(MSTE_CLK)) 588 strcat(model, "Mega ST"); 589 else 590 strcat(model, "ST"); 591 break; 592 case ATARI_MCH_STE: 593 if (MACH_IS_MSTE) 594 strcat(model, "Mega STE"); 595 else 596 strcat(model, "STE"); 597 break; 598 case ATARI_MCH_TT: 599 if (MACH_IS_MEDUSA) 600 /* Medusa has TT _MCH cookie */ 601 strcat(model, "Medusa"); 602 else 603 strcat(model, "TT"); 604 break; 605 case ATARI_MCH_FALCON: 606 strcat(model, "Falcon"); 607 if (MACH_IS_AB40) 608 strcat(model, " (with Afterburner040)"); 609 break; 610 default: 611 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 612 atari_mch_cookie); 613 break; 614 } 615 } 616 617 618 static void atari_get_hardware_list(struct seq_file *m) 619 { 620 int i; 621 622 for (i = 0; i < m68k_num_memory; i++) 623 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 624 m68k_memory[i].size >> 20, m68k_memory[i].addr, 625 (m68k_memory[i].addr & 0xff000000 ? 626 "alternate RAM" : "ST-RAM")); 627 628 #define ATARIHW_ANNOUNCE(name, str) \ 629 if (ATARIHW_PRESENT(name)) \ 630 seq_printf(m, "\t%s\n", str) 631 632 seq_printf(m, "Detected hardware:\n"); 633 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 634 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 635 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 636 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 637 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 638 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 639 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 640 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 641 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 642 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 643 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 644 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 645 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 646 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 647 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 648 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 649 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 650 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 651 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 652 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 653 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 654 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 655 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 656 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 657 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 658 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 659 ATARIHW_ANNOUNCE(VME, "VME Bus"); 660 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 661 } 662 663 /* 664 * MSch: initial platform device support for Atari, 665 * required for EtherNAT/EtherNEC/NetUSBee drivers 666 */ 667 668 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 669 static void isp1160_delay(struct device *dev, int delay) 670 { 671 ndelay(delay); 672 } 673 #endif 674 675 #ifdef CONFIG_ATARI_ETHERNAT 676 /* 677 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 678 */ 679 680 #define ATARI_ETHERNAT_IRQ 140 681 682 static struct resource smc91x_resources[] = { 683 [0] = { 684 .name = "smc91x-regs", 685 .start = ATARI_ETHERNAT_PHYS_ADDR, 686 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 687 .flags = IORESOURCE_MEM, 688 }, 689 [1] = { 690 .name = "smc91x-irq", 691 .start = ATARI_ETHERNAT_IRQ, 692 .end = ATARI_ETHERNAT_IRQ, 693 .flags = IORESOURCE_IRQ, 694 }, 695 }; 696 697 static struct platform_device smc91x_device = { 698 .name = "smc91x", 699 .id = -1, 700 .num_resources = ARRAY_SIZE(smc91x_resources), 701 .resource = smc91x_resources, 702 }; 703 704 /* 705 * ISP 1160 - using the isp116x-hcd module 706 */ 707 708 #define ATARI_USB_PHYS_ADDR 0x80000012 709 #define ATARI_USB_IRQ 139 710 711 static struct resource isp1160_resources[] = { 712 [0] = { 713 .name = "isp1160-data", 714 .start = ATARI_USB_PHYS_ADDR, 715 .end = ATARI_USB_PHYS_ADDR + 0x1, 716 .flags = IORESOURCE_MEM, 717 }, 718 [1] = { 719 .name = "isp1160-regs", 720 .start = ATARI_USB_PHYS_ADDR + 0x4, 721 .end = ATARI_USB_PHYS_ADDR + 0x5, 722 .flags = IORESOURCE_MEM, 723 }, 724 [2] = { 725 .name = "isp1160-irq", 726 .start = ATARI_USB_IRQ, 727 .end = ATARI_USB_IRQ, 728 .flags = IORESOURCE_IRQ, 729 }, 730 }; 731 732 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 733 static struct isp116x_platform_data isp1160_platform_data = { 734 /* Enable internal resistors on downstream ports */ 735 .sel15Kres = 1, 736 /* On-chip overcurrent protection */ 737 .oc_enable = 1, 738 /* INT output polarity */ 739 .int_act_high = 1, 740 /* INT edge or level triggered */ 741 .int_edge_triggered = 0, 742 743 /* WAKEUP pin connected - NOT SUPPORTED */ 744 /* .remote_wakeup_connected = 0, */ 745 /* Wakeup by devices on usb bus enabled */ 746 .remote_wakeup_enable = 0, 747 .delay = isp1160_delay, 748 }; 749 750 static struct platform_device isp1160_device = { 751 .name = "isp116x-hcd", 752 .id = 0, 753 .num_resources = ARRAY_SIZE(isp1160_resources), 754 .resource = isp1160_resources, 755 .dev = { 756 .platform_data = &isp1160_platform_data, 757 }, 758 }; 759 760 static struct platform_device *atari_ethernat_devices[] __initdata = { 761 &smc91x_device, 762 &isp1160_device 763 }; 764 #endif /* CONFIG_ATARI_ETHERNAT */ 765 766 #ifdef CONFIG_ATARI_ETHERNEC 767 /* 768 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 769 * handled by ne.c driver 770 */ 771 772 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 773 #define ATARI_ETHERNEC_BASE 0x300 774 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 775 776 static struct resource rtl8019_resources[] = { 777 [0] = { 778 .name = "rtl8019-regs", 779 .start = ATARI_ETHERNEC_BASE, 780 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 781 .flags = IORESOURCE_IO, 782 }, 783 [1] = { 784 .name = "rtl8019-irq", 785 .start = ATARI_ETHERNEC_IRQ, 786 .end = ATARI_ETHERNEC_IRQ, 787 .flags = IORESOURCE_IRQ, 788 }, 789 }; 790 791 static struct platform_device rtl8019_device = { 792 .name = "ne", 793 .id = -1, 794 .num_resources = ARRAY_SIZE(rtl8019_resources), 795 .resource = rtl8019_resources, 796 }; 797 798 /* 799 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 800 */ 801 802 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 803 #define ATARI_NETUSBEE_BASE 0x340 804 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 805 806 static struct resource netusbee_resources[] = { 807 [0] = { 808 .name = "isp1160-data", 809 .start = ATARI_NETUSBEE_BASE, 810 .end = ATARI_NETUSBEE_BASE + 0x1, 811 .flags = IORESOURCE_MEM, 812 }, 813 [1] = { 814 .name = "isp1160-regs", 815 .start = ATARI_NETUSBEE_BASE + 0x20, 816 .end = ATARI_NETUSBEE_BASE + 0x21, 817 .flags = IORESOURCE_MEM, 818 }, 819 [2] = { 820 .name = "isp1160-irq", 821 .start = ATARI_NETUSBEE_IRQ, 822 .end = ATARI_NETUSBEE_IRQ, 823 .flags = IORESOURCE_IRQ, 824 }, 825 }; 826 827 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 828 static struct isp116x_platform_data netusbee_platform_data = { 829 /* Enable internal resistors on downstream ports */ 830 .sel15Kres = 1, 831 /* On-chip overcurrent protection */ 832 .oc_enable = 1, 833 /* INT output polarity */ 834 .int_act_high = 1, 835 /* INT edge or level triggered */ 836 .int_edge_triggered = 0, 837 838 /* WAKEUP pin connected - NOT SUPPORTED */ 839 /* .remote_wakeup_connected = 0, */ 840 /* Wakeup by devices on usb bus enabled */ 841 .remote_wakeup_enable = 0, 842 .delay = isp1160_delay, 843 }; 844 845 static struct platform_device netusbee_device = { 846 .name = "isp116x-hcd", 847 .id = 1, 848 .num_resources = ARRAY_SIZE(netusbee_resources), 849 .resource = netusbee_resources, 850 .dev = { 851 .platform_data = &netusbee_platform_data, 852 }, 853 }; 854 855 static struct platform_device *atari_netusbee_devices[] __initdata = { 856 &rtl8019_device, 857 &netusbee_device 858 }; 859 #endif /* CONFIG_ATARI_ETHERNEC */ 860 861 #if IS_ENABLED(CONFIG_ATARI_SCSI) 862 static const struct resource atari_scsi_st_rsrc[] __initconst = { 863 { 864 .flags = IORESOURCE_IRQ, 865 .start = IRQ_MFP_FSCSI, 866 .end = IRQ_MFP_FSCSI, 867 }, 868 }; 869 870 static const struct resource atari_scsi_tt_rsrc[] __initconst = { 871 { 872 .flags = IORESOURCE_IRQ, 873 .start = IRQ_TT_MFP_SCSI, 874 .end = IRQ_TT_MFP_SCSI, 875 }, 876 }; 877 #endif 878 879 int __init atari_platform_init(void) 880 { 881 int rv = 0; 882 883 if (!MACH_IS_ATARI) 884 return -ENODEV; 885 886 #ifdef CONFIG_ATARI_ETHERNAT 887 { 888 unsigned char *enatc_virt; 889 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 890 if (hwreg_present(enatc_virt)) { 891 rv = platform_add_devices(atari_ethernat_devices, 892 ARRAY_SIZE(atari_ethernat_devices)); 893 } 894 iounmap(enatc_virt); 895 } 896 #endif 897 898 #ifdef CONFIG_ATARI_ETHERNEC 899 { 900 int error; 901 unsigned char *enec_virt; 902 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 903 if (hwreg_present(enec_virt)) { 904 error = platform_add_devices(atari_netusbee_devices, 905 ARRAY_SIZE(atari_netusbee_devices)); 906 if (error && !rv) 907 rv = error; 908 } 909 iounmap(enec_virt); 910 } 911 #endif 912 913 #if IS_ENABLED(CONFIG_ATARI_SCSI) 914 if (ATARIHW_PRESENT(ST_SCSI)) 915 platform_device_register_simple("atari_scsi", -1, 916 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc)); 917 else if (ATARIHW_PRESENT(TT_SCSI)) 918 platform_device_register_simple("atari_scsi", -1, 919 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc)); 920 #endif 921 922 return rv; 923 } 924 925 arch_initcall(atari_platform_init); 926