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/module.h> 37 38 #include <asm/bootinfo.h> 39 #include <asm/bootinfo-atari.h> 40 #include <asm/byteorder.h> 41 #include <asm/setup.h> 42 #include <asm/atarihw.h> 43 #include <asm/atariints.h> 44 #include <asm/atari_stram.h> 45 #include <asm/machdep.h> 46 #include <asm/hwtest.h> 47 #include <asm/io.h> 48 #include <asm/config.h> 49 50 #include "atari.h" 51 52 u_long atari_mch_cookie; 53 EXPORT_SYMBOL(atari_mch_cookie); 54 55 u_long atari_mch_type; 56 EXPORT_SYMBOL(atari_mch_type); 57 58 struct atari_hw_present atari_hw_present; 59 EXPORT_SYMBOL(atari_hw_present); 60 61 u_long atari_switches; 62 EXPORT_SYMBOL(atari_switches); 63 64 int atari_dont_touch_floppy_select; 65 EXPORT_SYMBOL(atari_dont_touch_floppy_select); 66 67 int atari_rtc_year_offset; 68 69 /* local function prototypes */ 70 static void atari_reset(void); 71 static void atari_get_model(char *model); 72 static void atari_get_hardware_list(struct seq_file *m); 73 #ifdef CONFIG_HEARTBEAT 74 static void atari_heartbeat(int on); 75 #endif 76 77 /* ++roman: This is a more elaborate test for an SCC chip, since the plain 78 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 79 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 80 * resides generate DTACK without the chip, too. 81 * The method is to write values into the interrupt vector register, that 82 * should be readable without trouble (from channel A!). 83 */ 84 85 static int __init scc_test(volatile char *ctla) 86 { 87 if (!hwreg_present(ctla)) 88 return 0; 89 MFPDELAY(); 90 91 *ctla = 2; 92 MFPDELAY(); 93 *ctla = 0x40; 94 MFPDELAY(); 95 96 *ctla = 2; 97 MFPDELAY(); 98 if (*ctla != 0x40) 99 return 0; 100 MFPDELAY(); 101 102 *ctla = 2; 103 MFPDELAY(); 104 *ctla = 0x60; 105 MFPDELAY(); 106 107 *ctla = 2; 108 MFPDELAY(); 109 if (*ctla != 0x60) 110 return 0; 111 112 return 1; 113 } 114 115 116 /* 117 * Parse an Atari-specific record in the bootinfo 118 */ 119 120 int __init atari_parse_bootinfo(const struct bi_record *record) 121 { 122 int unknown = 0; 123 const void *data = record->data; 124 125 switch (be16_to_cpu(record->tag)) { 126 case BI_ATARI_MCH_COOKIE: 127 atari_mch_cookie = be32_to_cpup(data); 128 break; 129 case BI_ATARI_MCH_TYPE: 130 atari_mch_type = be32_to_cpup(data); 131 break; 132 default: 133 unknown = 1; 134 break; 135 } 136 return unknown; 137 } 138 139 140 /* Parse the Atari-specific switches= option. */ 141 static int __init atari_switches_setup(char *str) 142 { 143 char switches[COMMAND_LINE_SIZE]; 144 char *p; 145 int ovsc_shift; 146 char *args = switches; 147 148 if (!MACH_IS_ATARI) 149 return 0; 150 151 /* copy string to local array, strsep works destructively... */ 152 strcpy(switches, str); 153 atari_switches = 0; 154 155 /* parse the options */ 156 while ((p = strsep(&args, ",")) != NULL) { 157 if (!*p) 158 continue; 159 ovsc_shift = 0; 160 if (strncmp(p, "ov_", 3) == 0) { 161 p += 3; 162 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 163 } 164 165 if (strcmp(p, "ikbd") == 0) { 166 /* RTS line of IKBD ACIA */ 167 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 168 } else if (strcmp(p, "midi") == 0) { 169 /* RTS line of MIDI ACIA */ 170 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 171 } else if (strcmp(p, "snd6") == 0) { 172 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 173 } else if (strcmp(p, "snd7") == 0) { 174 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 175 } 176 } 177 return 0; 178 } 179 180 early_param("switches", atari_switches_setup); 181 182 183 /* 184 * Setup the Atari configuration info 185 */ 186 187 void __init config_atari(void) 188 { 189 unsigned short tos_version; 190 191 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 192 193 /* Change size of I/O space from 64KB to 4GB. */ 194 ioport_resource.end = 0xFFFFFFFF; 195 196 mach_sched_init = atari_sched_init; 197 mach_init_IRQ = atari_init_IRQ; 198 mach_get_model = atari_get_model; 199 mach_get_hardware_list = atari_get_hardware_list; 200 mach_reset = atari_reset; 201 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 202 mach_beep = atari_mksound; 203 #endif 204 #ifdef CONFIG_HEARTBEAT 205 mach_heartbeat = atari_heartbeat; 206 #endif 207 208 /* Set switches as requested by the user */ 209 if (atari_switches & ATARI_SWITCH_IKBD) 210 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 211 if (atari_switches & ATARI_SWITCH_MIDI) 212 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 213 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 214 sound_ym.rd_data_reg_sel = 14; 215 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 216 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 217 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 218 } 219 220 /* ++bjoern: 221 * Determine hardware present 222 */ 223 224 pr_info("Atari hardware found:"); 225 if (MACH_IS_MEDUSA) { 226 /* There's no Atari video hardware on the Medusa, but all the 227 * addresses below generate a DTACK so no bus error occurs! */ 228 } else if (hwreg_present(f030_xreg)) { 229 ATARIHW_SET(VIDEL_SHIFTER); 230 pr_cont(" VIDEL"); 231 /* This is a temporary hack: If there is Falcon video 232 * hardware, we assume that the ST-DMA serves SCSI instead of 233 * ACSI. In the future, there should be a better method for 234 * this... 235 */ 236 ATARIHW_SET(ST_SCSI); 237 pr_cont(" STDMA-SCSI"); 238 } else if (hwreg_present(tt_palette)) { 239 ATARIHW_SET(TT_SHIFTER); 240 pr_cont(" TT_SHIFTER"); 241 } else if (hwreg_present(&shifter_st.bas_hi)) { 242 if (hwreg_present(&shifter_st.bas_lo) && 243 (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) { 244 ATARIHW_SET(EXTD_SHIFTER); 245 pr_cont(" EXTD_SHIFTER"); 246 } else { 247 ATARIHW_SET(STND_SHIFTER); 248 pr_cont(" STND_SHIFTER"); 249 } 250 } 251 if (hwreg_present(&st_mfp.par_dt_reg)) { 252 ATARIHW_SET(ST_MFP); 253 pr_cont(" ST_MFP"); 254 } 255 if (hwreg_present(&tt_mfp.par_dt_reg)) { 256 ATARIHW_SET(TT_MFP); 257 pr_cont(" TT_MFP"); 258 } 259 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 260 ATARIHW_SET(SCSI_DMA); 261 pr_cont(" TT_SCSI_DMA"); 262 } 263 /* 264 * The ST-DMA address registers aren't readable 265 * on all Medusas, so the test below may fail 266 */ 267 if (MACH_IS_MEDUSA || 268 (hwreg_present(&st_dma.dma_vhi) && 269 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 270 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 271 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 272 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 273 ATARIHW_SET(EXTD_DMA); 274 pr_cont(" EXTD_DMA"); 275 } 276 if (hwreg_present(&tt_scsi.scsi_data)) { 277 ATARIHW_SET(TT_SCSI); 278 pr_cont(" TT_SCSI"); 279 } 280 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 281 ATARIHW_SET(YM_2149); 282 pr_cont(" YM2149"); 283 } 284 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 285 ATARIHW_SET(PCM_8BIT); 286 pr_cont(" PCM"); 287 } 288 if (hwreg_present(&falcon_codec.unused5)) { 289 ATARIHW_SET(CODEC); 290 pr_cont(" CODEC"); 291 } 292 if (hwreg_present(&dsp56k_host_interface.icr)) { 293 ATARIHW_SET(DSP56K); 294 pr_cont(" DSP56K"); 295 } 296 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 297 #if 0 298 /* This test sucks! Who knows some better? */ 299 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 300 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 301 #else 302 !MACH_IS_MEDUSA 303 #endif 304 ) { 305 ATARIHW_SET(SCC_DMA); 306 pr_cont(" SCC_DMA"); 307 } 308 if (scc_test(&atari_scc.cha_a_ctrl)) { 309 ATARIHW_SET(SCC); 310 pr_cont(" SCC"); 311 } 312 if (scc_test(&st_escc.cha_b_ctrl)) { 313 ATARIHW_SET(ST_ESCC); 314 pr_cont(" ST_ESCC"); 315 } 316 if (hwreg_present(&tt_scu.sys_mask)) { 317 ATARIHW_SET(SCU); 318 /* Assume a VME bus if there's a SCU */ 319 ATARIHW_SET(VME); 320 pr_cont(" VME SCU"); 321 } 322 if (hwreg_present((void *)(0xffff9210))) { 323 ATARIHW_SET(ANALOG_JOY); 324 pr_cont(" ANALOG_JOY"); 325 } 326 if (hwreg_present(blitter.halftone)) { 327 ATARIHW_SET(BLITTER); 328 pr_cont(" BLITTER"); 329 } 330 if (hwreg_present((void *)0xfff00039)) { 331 ATARIHW_SET(IDE); 332 pr_cont(" IDE"); 333 } 334 #if 1 /* This maybe wrong */ 335 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 336 hwreg_present(&tt_microwire.mask) && 337 (tt_microwire.mask = 0x7ff, 338 udelay(1), 339 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 340 udelay(1), 341 tt_microwire.data != 0)) { 342 ATARIHW_SET(MICROWIRE); 343 while (tt_microwire.mask != 0x7ff) 344 ; 345 pr_cont(" MICROWIRE"); 346 } 347 #endif 348 if (hwreg_present(&tt_rtc.regsel)) { 349 ATARIHW_SET(TT_CLK); 350 pr_cont(" TT_CLK"); 351 mach_hwclk = atari_tt_hwclk; 352 } 353 if (hwreg_present(&mste_rtc.sec_ones)) { 354 ATARIHW_SET(MSTE_CLK); 355 pr_cont(" MSTE_CLK"); 356 mach_hwclk = atari_mste_hwclk; 357 } 358 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 359 hwreg_write(&dma_wd.fdc_speed, 0)) { 360 ATARIHW_SET(FDCSPEED); 361 pr_cont(" FDC_SPEED"); 362 } 363 if (!ATARIHW_PRESENT(ST_SCSI)) { 364 ATARIHW_SET(ACSI); 365 pr_cont(" ACSI"); 366 } 367 pr_cont("\n"); 368 369 if (CPU_IS_040_OR_060) 370 /* Now it seems to be safe to turn of the tt0 transparent 371 * translation (the one that must not be turned off in 372 * head.S...) 373 */ 374 asm volatile ("\n" 375 " moveq #0,%%d0\n" 376 " .chip 68040\n" 377 " movec %%d0,%%itt0\n" 378 " movec %%d0,%%dtt0\n" 379 " .chip 68k" 380 : /* no outputs */ 381 : /* no inputs */ 382 : "d0"); 383 384 /* allocator for memory that must reside in st-ram */ 385 atari_stram_init(); 386 387 /* Set up a mapping for the VMEbus address region: 388 * 389 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 390 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 391 * 0xfe000000 virt., because this can be done with a single 392 * transparent translation. On the 68040, lots of often unused 393 * page tables would be needed otherwise. On a MegaSTE or similar, 394 * the highest byte is stripped off by hardware due to the 24 bit 395 * design of the bus. 396 */ 397 398 if (CPU_IS_020_OR_030) { 399 unsigned long tt1_val; 400 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 401 * inhibit, read and write, FDC mask = 3, 402 * FDC val = 4 -> Supervisor only */ 403 asm volatile ("\n" 404 " .chip 68030\n" 405 " pmove %0,%/tt1\n" 406 " .chip 68k" 407 : : "m" (tt1_val)); 408 } else { 409 asm volatile ("\n" 410 " .chip 68040\n" 411 " movec %0,%%itt1\n" 412 " movec %0,%%dtt1\n" 413 " .chip 68k" 414 : 415 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 416 * supervisor only, non-cacheable/ 417 * serialized, writable */ 418 419 } 420 421 /* Fetch tos version at Physical 2 */ 422 /* 423 * We my not be able to access this address if the kernel is 424 * loaded to st ram, since the first page is unmapped. On the 425 * Medusa this is always the case and there is nothing we can do 426 * about this, so we just assume the smaller offset. For the TT 427 * we use the fact that in head.S we have set up a mapping 428 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 429 * in the last 16MB of the address space. 430 */ 431 tos_version = (MACH_IS_MEDUSA) ? 432 0xfff : *(unsigned short *)0xff000002; 433 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 434 } 435 436 #ifdef CONFIG_HEARTBEAT 437 static void atari_heartbeat(int on) 438 { 439 unsigned char tmp; 440 unsigned long flags; 441 442 if (atari_dont_touch_floppy_select) 443 return; 444 445 local_irq_save(flags); 446 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 447 tmp = sound_ym.rd_data_reg_sel; 448 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 449 local_irq_restore(flags); 450 } 451 #endif 452 453 /* ++roman: 454 * 455 * This function does a reset on machines that lack the ability to 456 * assert the processor's _RESET signal somehow via hardware. It is 457 * based on the fact that you can find the initial SP and PC values 458 * after a reset at physical addresses 0 and 4. This works pretty well 459 * for Atari machines, since the lowest 8 bytes of physical memory are 460 * really ROM (mapped by hardware). For other 680x0 machines: don't 461 * know if it works... 462 * 463 * To get the values at addresses 0 and 4, the MMU better is turned 464 * off first. After that, we have to jump into physical address space 465 * (the PC before the pmove statement points to the virtual address of 466 * the code). Getting that physical address is not hard, but the code 467 * becomes a bit complex since I've tried to ensure that the jump 468 * statement after the pmove is in the cache already (otherwise the 469 * processor can't fetch it!). For that, the code first jumps to the 470 * jump statement with the (virtual) address of the pmove section in 471 * an address register . The jump statement is surely in the cache 472 * now. After that, that physical address of the reset code is loaded 473 * into the same address register, pmove is done and the same jump 474 * statements goes to the reset code. Since there are not many 475 * statements between the two jumps, I hope it stays in the cache. 476 * 477 * The C code makes heavy use of the GCC features that you can get the 478 * address of a C label. No hope to compile this with another compiler 479 * than GCC! 480 */ 481 482 /* ++andreas: no need for complicated code, just depend on prefetch */ 483 484 static void atari_reset(void) 485 { 486 long tc_val = 0; 487 long reset_addr; 488 489 /* 490 * On the Medusa, phys. 0x4 may contain garbage because it's no 491 * ROM. See above for explanation why we cannot use PTOV(4). 492 */ 493 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 494 *(unsigned long *) 0xff000004; 495 496 /* reset ACIA for switch off OverScan, if it's active */ 497 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 498 acia.key_ctrl = ACIA_RESET; 499 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 500 acia.mid_ctrl = ACIA_RESET; 501 502 /* processor independent: turn off interrupts and reset the VBR; 503 * the caches must be left enabled, else prefetching the final jump 504 * instruction doesn't work. 505 */ 506 local_irq_disable(); 507 asm volatile ("movec %0,%%vbr" 508 : : "d" (0)); 509 510 if (CPU_IS_040_OR_060) { 511 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 512 if (CPU_IS_060) { 513 /* 68060: clear PCR to turn off superscalar operation */ 514 asm volatile ("\n" 515 " .chip 68060\n" 516 " movec %0,%%pcr\n" 517 " .chip 68k" 518 : : "d" (0)); 519 } 520 521 asm volatile ("\n" 522 " move.l %0,%%d0\n" 523 " and.l #0xff000000,%%d0\n" 524 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 525 " .chip 68040\n" 526 " movec %%d0,%%itt0\n" 527 " movec %%d0,%%dtt0\n" 528 " .chip 68k\n" 529 " jmp %0@" 530 : : "a" (jmp_addr040) 531 : "d0"); 532 jmp_addr_label040: 533 asm volatile ("\n" 534 " moveq #0,%%d0\n" 535 " nop\n" 536 " .chip 68040\n" 537 " cinva %%bc\n" 538 " nop\n" 539 " pflusha\n" 540 " nop\n" 541 " movec %%d0,%%tc\n" 542 " nop\n" 543 /* the following setup of transparent translations is needed on the 544 * Afterburner040 to successfully reboot. Other machines shouldn't 545 * care about a different tt regs setup, they also didn't care in 546 * the past that the regs weren't turned off. */ 547 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 548 " movec %%d0,%%itt0\n" 549 " movec %%d0,%%itt1\n" 550 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 551 " movec %%d0,%%dtt0\n" 552 " movec %%d0,%%dtt1\n" 553 " .chip 68k\n" 554 " jmp %0@" 555 : /* no outputs */ 556 : "a" (reset_addr) 557 : "d0"); 558 } else 559 asm volatile ("\n" 560 " pmove %0,%%tc\n" 561 " jmp %1@" 562 : /* no outputs */ 563 : "m" (tc_val), "a" (reset_addr)); 564 } 565 566 567 static void atari_get_model(char *model) 568 { 569 strcpy(model, "Atari "); 570 switch (atari_mch_cookie >> 16) { 571 case ATARI_MCH_ST: 572 if (ATARIHW_PRESENT(MSTE_CLK)) 573 strcat(model, "Mega ST"); 574 else 575 strcat(model, "ST"); 576 break; 577 case ATARI_MCH_STE: 578 if (MACH_IS_MSTE) 579 strcat(model, "Mega STE"); 580 else 581 strcat(model, "STE"); 582 break; 583 case ATARI_MCH_TT: 584 if (MACH_IS_MEDUSA) 585 /* Medusa has TT _MCH cookie */ 586 strcat(model, "Medusa"); 587 else 588 strcat(model, "TT"); 589 break; 590 case ATARI_MCH_FALCON: 591 strcat(model, "Falcon"); 592 if (MACH_IS_AB40) 593 strcat(model, " (with Afterburner040)"); 594 break; 595 default: 596 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 597 atari_mch_cookie); 598 break; 599 } 600 } 601 602 603 static void atari_get_hardware_list(struct seq_file *m) 604 { 605 int i; 606 607 for (i = 0; i < m68k_num_memory; i++) 608 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 609 m68k_memory[i].size >> 20, m68k_memory[i].addr, 610 (m68k_memory[i].addr & 0xff000000 ? 611 "alternate RAM" : "ST-RAM")); 612 613 #define ATARIHW_ANNOUNCE(name, str) \ 614 if (ATARIHW_PRESENT(name)) \ 615 seq_printf(m, "\t%s\n", str) 616 617 seq_puts(m, "Detected hardware:\n"); 618 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 619 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 620 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 621 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 622 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 623 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 624 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 625 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 626 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 627 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 628 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 629 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 630 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 631 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 632 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 633 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 634 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 635 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 636 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 637 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 638 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 639 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 640 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 641 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 642 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 643 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 644 ATARIHW_ANNOUNCE(VME, "VME Bus"); 645 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 646 } 647 648 /* 649 * MSch: initial platform device support for Atari, 650 * required for EtherNAT/EtherNEC/NetUSBee drivers 651 */ 652 653 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 654 static void isp1160_delay(struct device *dev, int delay) 655 { 656 ndelay(delay); 657 } 658 #endif 659 660 #ifdef CONFIG_ATARI_ETHERNAT 661 /* 662 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 663 */ 664 665 #define ATARI_ETHERNAT_IRQ 140 666 667 static struct resource smc91x_resources[] = { 668 [0] = { 669 .name = "smc91x-regs", 670 .start = ATARI_ETHERNAT_PHYS_ADDR, 671 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 672 .flags = IORESOURCE_MEM, 673 }, 674 [1] = { 675 .name = "smc91x-irq", 676 .start = ATARI_ETHERNAT_IRQ, 677 .end = ATARI_ETHERNAT_IRQ, 678 .flags = IORESOURCE_IRQ, 679 }, 680 }; 681 682 static struct platform_device smc91x_device = { 683 .name = "smc91x", 684 .id = -1, 685 .num_resources = ARRAY_SIZE(smc91x_resources), 686 .resource = smc91x_resources, 687 }; 688 689 /* 690 * ISP 1160 - using the isp116x-hcd module 691 */ 692 693 #define ATARI_USB_PHYS_ADDR 0x80000012 694 #define ATARI_USB_IRQ 139 695 696 static struct resource isp1160_resources[] = { 697 [0] = { 698 .name = "isp1160-data", 699 .start = ATARI_USB_PHYS_ADDR, 700 .end = ATARI_USB_PHYS_ADDR + 0x1, 701 .flags = IORESOURCE_MEM, 702 }, 703 [1] = { 704 .name = "isp1160-regs", 705 .start = ATARI_USB_PHYS_ADDR + 0x4, 706 .end = ATARI_USB_PHYS_ADDR + 0x5, 707 .flags = IORESOURCE_MEM, 708 }, 709 [2] = { 710 .name = "isp1160-irq", 711 .start = ATARI_USB_IRQ, 712 .end = ATARI_USB_IRQ, 713 .flags = IORESOURCE_IRQ, 714 }, 715 }; 716 717 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 718 static struct isp116x_platform_data isp1160_platform_data = { 719 /* Enable internal resistors on downstream ports */ 720 .sel15Kres = 1, 721 /* On-chip overcurrent protection */ 722 .oc_enable = 1, 723 /* INT output polarity */ 724 .int_act_high = 1, 725 /* INT edge or level triggered */ 726 .int_edge_triggered = 0, 727 728 /* WAKEUP pin connected - NOT SUPPORTED */ 729 /* .remote_wakeup_connected = 0, */ 730 /* Wakeup by devices on usb bus enabled */ 731 .remote_wakeup_enable = 0, 732 .delay = isp1160_delay, 733 }; 734 735 static struct platform_device isp1160_device = { 736 .name = "isp116x-hcd", 737 .id = 0, 738 .num_resources = ARRAY_SIZE(isp1160_resources), 739 .resource = isp1160_resources, 740 .dev = { 741 .platform_data = &isp1160_platform_data, 742 }, 743 }; 744 745 static struct platform_device *atari_ethernat_devices[] __initdata = { 746 &smc91x_device, 747 &isp1160_device 748 }; 749 #endif /* CONFIG_ATARI_ETHERNAT */ 750 751 #ifdef CONFIG_ATARI_ETHERNEC 752 /* 753 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 754 * handled by ne.c driver 755 */ 756 757 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 758 #define ATARI_ETHERNEC_BASE 0x300 759 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 760 761 static struct resource rtl8019_resources[] = { 762 [0] = { 763 .name = "rtl8019-regs", 764 .start = ATARI_ETHERNEC_BASE, 765 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 766 .flags = IORESOURCE_IO, 767 }, 768 [1] = { 769 .name = "rtl8019-irq", 770 .start = ATARI_ETHERNEC_IRQ, 771 .end = ATARI_ETHERNEC_IRQ, 772 .flags = IORESOURCE_IRQ, 773 }, 774 }; 775 776 static struct platform_device rtl8019_device = { 777 .name = "ne", 778 .id = -1, 779 .num_resources = ARRAY_SIZE(rtl8019_resources), 780 .resource = rtl8019_resources, 781 }; 782 783 /* 784 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 785 */ 786 787 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 788 #define ATARI_NETUSBEE_BASE 0x340 789 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 790 791 static struct resource netusbee_resources[] = { 792 [0] = { 793 .name = "isp1160-data", 794 .start = ATARI_NETUSBEE_BASE, 795 .end = ATARI_NETUSBEE_BASE + 0x1, 796 .flags = IORESOURCE_MEM, 797 }, 798 [1] = { 799 .name = "isp1160-regs", 800 .start = ATARI_NETUSBEE_BASE + 0x20, 801 .end = ATARI_NETUSBEE_BASE + 0x21, 802 .flags = IORESOURCE_MEM, 803 }, 804 [2] = { 805 .name = "isp1160-irq", 806 .start = ATARI_NETUSBEE_IRQ, 807 .end = ATARI_NETUSBEE_IRQ, 808 .flags = IORESOURCE_IRQ, 809 }, 810 }; 811 812 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 813 static struct isp116x_platform_data netusbee_platform_data = { 814 /* Enable internal resistors on downstream ports */ 815 .sel15Kres = 1, 816 /* On-chip overcurrent protection */ 817 .oc_enable = 1, 818 /* INT output polarity */ 819 .int_act_high = 1, 820 /* INT edge or level triggered */ 821 .int_edge_triggered = 0, 822 823 /* WAKEUP pin connected - NOT SUPPORTED */ 824 /* .remote_wakeup_connected = 0, */ 825 /* Wakeup by devices on usb bus enabled */ 826 .remote_wakeup_enable = 0, 827 .delay = isp1160_delay, 828 }; 829 830 static struct platform_device netusbee_device = { 831 .name = "isp116x-hcd", 832 .id = 1, 833 .num_resources = ARRAY_SIZE(netusbee_resources), 834 .resource = netusbee_resources, 835 .dev = { 836 .platform_data = &netusbee_platform_data, 837 }, 838 }; 839 840 static struct platform_device *atari_netusbee_devices[] __initdata = { 841 &rtl8019_device, 842 &netusbee_device 843 }; 844 #endif /* CONFIG_ATARI_ETHERNEC */ 845 846 #if IS_ENABLED(CONFIG_ATARI_SCSI) 847 static const struct resource atari_scsi_st_rsrc[] __initconst = { 848 { 849 .flags = IORESOURCE_IRQ, 850 .start = IRQ_MFP_FSCSI, 851 .end = IRQ_MFP_FSCSI, 852 }, 853 }; 854 855 static const struct resource atari_scsi_tt_rsrc[] __initconst = { 856 { 857 .flags = IORESOURCE_IRQ, 858 .start = IRQ_TT_MFP_SCSI, 859 .end = IRQ_TT_MFP_SCSI, 860 }, 861 }; 862 #endif 863 864 /* 865 * Falcon IDE interface 866 */ 867 868 #define FALCON_IDE_BASE 0xfff00000 869 870 static const struct resource atari_falconide_rsrc[] __initconst = { 871 DEFINE_RES_MEM(FALCON_IDE_BASE, 0x38), 872 DEFINE_RES_MEM(FALCON_IDE_BASE + 0x38, 2), 873 }; 874 875 static int __init atari_platform_init(void) 876 { 877 struct platform_device *pdev; 878 int rv = 0; 879 880 if (!MACH_IS_ATARI) 881 return -ENODEV; 882 883 #ifdef CONFIG_ATARI_ETHERNAT 884 { 885 unsigned char *enatc_virt; 886 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 887 if (hwreg_present(enatc_virt)) { 888 rv = platform_add_devices(atari_ethernat_devices, 889 ARRAY_SIZE(atari_ethernat_devices)); 890 } 891 iounmap(enatc_virt); 892 } 893 #endif 894 895 #ifdef CONFIG_ATARI_ETHERNEC 896 { 897 int error; 898 unsigned char *enec_virt; 899 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 900 if (hwreg_present(enec_virt)) { 901 error = platform_add_devices(atari_netusbee_devices, 902 ARRAY_SIZE(atari_netusbee_devices)); 903 if (error && !rv) 904 rv = error; 905 } 906 iounmap(enec_virt); 907 } 908 #endif 909 910 #if IS_ENABLED(CONFIG_ATARI_SCSI) 911 if (ATARIHW_PRESENT(ST_SCSI)) 912 platform_device_register_simple("atari_scsi", -1, 913 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc)); 914 else if (ATARIHW_PRESENT(TT_SCSI)) 915 platform_device_register_simple("atari_scsi", -1, 916 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc)); 917 #endif 918 919 if (ATARIHW_PRESENT(IDE)) { 920 pdev = platform_device_register_simple("atari-falcon-ide", -1, 921 atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc)); 922 if (IS_ERR(pdev)) 923 rv = PTR_ERR(pdev); 924 } 925 926 return rv; 927 } 928 929 arch_initcall(atari_platform_init); 930