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(void); 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 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 209 mach_beep = atari_mksound; 210 #endif 211 #ifdef CONFIG_HEARTBEAT 212 mach_heartbeat = atari_heartbeat; 213 #endif 214 215 /* Set switches as requested by the user */ 216 if (atari_switches & ATARI_SWITCH_IKBD) 217 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 218 if (atari_switches & ATARI_SWITCH_MIDI) 219 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 220 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 221 sound_ym.rd_data_reg_sel = 14; 222 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 223 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 224 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 225 } 226 227 /* ++bjoern: 228 * Determine hardware present 229 */ 230 231 pr_info("Atari hardware found:"); 232 if (MACH_IS_MEDUSA) { 233 /* There's no Atari video hardware on the Medusa, but all the 234 * addresses below generate a DTACK so no bus error occurs! */ 235 } else if (hwreg_present(f030_xreg)) { 236 ATARIHW_SET(VIDEL_SHIFTER); 237 pr_cont(" VIDEL"); 238 /* This is a temporary hack: If there is Falcon video 239 * hardware, we assume that the ST-DMA serves SCSI instead of 240 * ACSI. In the future, there should be a better method for 241 * this... 242 */ 243 ATARIHW_SET(ST_SCSI); 244 pr_cont(" STDMA-SCSI"); 245 } else if (hwreg_present(tt_palette)) { 246 ATARIHW_SET(TT_SHIFTER); 247 pr_cont(" TT_SHIFTER"); 248 } else if (hwreg_present(&shifter_st.bas_hi)) { 249 if (hwreg_present(&shifter_st.bas_lo) && 250 (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) { 251 ATARIHW_SET(EXTD_SHIFTER); 252 pr_cont(" EXTD_SHIFTER"); 253 } else { 254 ATARIHW_SET(STND_SHIFTER); 255 pr_cont(" STND_SHIFTER"); 256 } 257 } 258 if (hwreg_present(&st_mfp.par_dt_reg)) { 259 ATARIHW_SET(ST_MFP); 260 pr_cont(" ST_MFP"); 261 } 262 if (hwreg_present(&tt_mfp.par_dt_reg)) { 263 ATARIHW_SET(TT_MFP); 264 pr_cont(" TT_MFP"); 265 } 266 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 267 ATARIHW_SET(SCSI_DMA); 268 pr_cont(" TT_SCSI_DMA"); 269 } 270 /* 271 * The ST-DMA address registers aren't readable 272 * on all Medusas, so the test below may fail 273 */ 274 if (MACH_IS_MEDUSA || 275 (hwreg_present(&st_dma.dma_vhi) && 276 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 277 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 278 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 279 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 280 ATARIHW_SET(EXTD_DMA); 281 pr_cont(" EXTD_DMA"); 282 } 283 if (hwreg_present(&tt_scsi.scsi_data)) { 284 ATARIHW_SET(TT_SCSI); 285 pr_cont(" TT_SCSI"); 286 } 287 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 288 ATARIHW_SET(YM_2149); 289 pr_cont(" YM2149"); 290 } 291 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 292 ATARIHW_SET(PCM_8BIT); 293 pr_cont(" PCM"); 294 } 295 if (hwreg_present(&falcon_codec.unused5)) { 296 ATARIHW_SET(CODEC); 297 pr_cont(" CODEC"); 298 } 299 if (hwreg_present(&dsp56k_host_interface.icr)) { 300 ATARIHW_SET(DSP56K); 301 pr_cont(" DSP56K"); 302 } 303 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 304 #if 0 305 /* This test sucks! Who knows some better? */ 306 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 307 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 308 #else 309 !MACH_IS_MEDUSA 310 #endif 311 ) { 312 ATARIHW_SET(SCC_DMA); 313 pr_cont(" SCC_DMA"); 314 } 315 if (scc_test(&atari_scc.cha_a_ctrl)) { 316 ATARIHW_SET(SCC); 317 pr_cont(" SCC"); 318 } 319 if (scc_test(&st_escc.cha_b_ctrl)) { 320 ATARIHW_SET(ST_ESCC); 321 pr_cont(" ST_ESCC"); 322 } 323 if (hwreg_present(&tt_scu.sys_mask)) { 324 ATARIHW_SET(SCU); 325 /* Assume a VME bus if there's a SCU */ 326 ATARIHW_SET(VME); 327 pr_cont(" VME SCU"); 328 } 329 if (hwreg_present((void *)(0xffff9210))) { 330 ATARIHW_SET(ANALOG_JOY); 331 pr_cont(" ANALOG_JOY"); 332 } 333 if (hwreg_present(blitter.halftone)) { 334 ATARIHW_SET(BLITTER); 335 pr_cont(" BLITTER"); 336 } 337 if (hwreg_present((void *)0xfff00039)) { 338 ATARIHW_SET(IDE); 339 pr_cont(" IDE"); 340 } 341 #if 1 /* This maybe wrong */ 342 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 343 hwreg_present(&tt_microwire.mask) && 344 (tt_microwire.mask = 0x7ff, 345 udelay(1), 346 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 347 udelay(1), 348 tt_microwire.data != 0)) { 349 ATARIHW_SET(MICROWIRE); 350 while (tt_microwire.mask != 0x7ff) 351 ; 352 pr_cont(" MICROWIRE"); 353 } 354 #endif 355 if (hwreg_present(&tt_rtc.regsel)) { 356 ATARIHW_SET(TT_CLK); 357 pr_cont(" TT_CLK"); 358 mach_hwclk = atari_tt_hwclk; 359 } 360 if (hwreg_present(&mste_rtc.sec_ones)) { 361 ATARIHW_SET(MSTE_CLK); 362 pr_cont(" MSTE_CLK"); 363 mach_hwclk = atari_mste_hwclk; 364 } 365 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 366 hwreg_write(&dma_wd.fdc_speed, 0)) { 367 ATARIHW_SET(FDCSPEED); 368 pr_cont(" FDC_SPEED"); 369 } 370 if (!ATARIHW_PRESENT(ST_SCSI)) { 371 ATARIHW_SET(ACSI); 372 pr_cont(" ACSI"); 373 } 374 pr_cont("\n"); 375 376 if (CPU_IS_040_OR_060) 377 /* Now it seems to be safe to turn of the tt0 transparent 378 * translation (the one that must not be turned off in 379 * head.S...) 380 */ 381 asm volatile ("\n" 382 " moveq #0,%%d0\n" 383 " .chip 68040\n" 384 " movec %%d0,%%itt0\n" 385 " movec %%d0,%%dtt0\n" 386 " .chip 68k" 387 : /* no outputs */ 388 : /* no inputs */ 389 : "d0"); 390 391 /* allocator for memory that must reside in st-ram */ 392 atari_stram_init(); 393 394 /* Set up a mapping for the VMEbus address region: 395 * 396 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 397 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 398 * 0xfe000000 virt., because this can be done with a single 399 * transparent translation. On the 68040, lots of often unused 400 * page tables would be needed otherwise. On a MegaSTE or similar, 401 * the highest byte is stripped off by hardware due to the 24 bit 402 * design of the bus. 403 */ 404 405 if (CPU_IS_020_OR_030) { 406 unsigned long tt1_val; 407 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 408 * inhibit, read and write, FDC mask = 3, 409 * FDC val = 4 -> Supervisor only */ 410 asm volatile ("\n" 411 " .chip 68030\n" 412 " pmove %0,%/tt1\n" 413 " .chip 68k" 414 : : "m" (tt1_val)); 415 } else { 416 asm volatile ("\n" 417 " .chip 68040\n" 418 " movec %0,%%itt1\n" 419 " movec %0,%%dtt1\n" 420 " .chip 68k" 421 : 422 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 423 * supervisor only, non-cacheable/ 424 * serialized, writable */ 425 426 } 427 428 /* Fetch tos version at Physical 2 */ 429 /* 430 * We my not be able to access this address if the kernel is 431 * loaded to st ram, since the first page is unmapped. On the 432 * Medusa this is always the case and there is nothing we can do 433 * about this, so we just assume the smaller offset. For the TT 434 * we use the fact that in head.S we have set up a mapping 435 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 436 * in the last 16MB of the address space. 437 */ 438 tos_version = (MACH_IS_MEDUSA) ? 439 0xfff : *(unsigned short *)0xff000002; 440 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 441 } 442 443 #ifdef CONFIG_HEARTBEAT 444 static void atari_heartbeat(int on) 445 { 446 unsigned char tmp; 447 unsigned long flags; 448 449 if (atari_dont_touch_floppy_select) 450 return; 451 452 local_irq_save(flags); 453 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 454 tmp = sound_ym.rd_data_reg_sel; 455 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 456 local_irq_restore(flags); 457 } 458 #endif 459 460 /* ++roman: 461 * 462 * This function does a reset on machines that lack the ability to 463 * assert the processor's _RESET signal somehow via hardware. It is 464 * based on the fact that you can find the initial SP and PC values 465 * after a reset at physical addresses 0 and 4. This works pretty well 466 * for Atari machines, since the lowest 8 bytes of physical memory are 467 * really ROM (mapped by hardware). For other 680x0 machines: don't 468 * know if it works... 469 * 470 * To get the values at addresses 0 and 4, the MMU better is turned 471 * off first. After that, we have to jump into physical address space 472 * (the PC before the pmove statement points to the virtual address of 473 * the code). Getting that physical address is not hard, but the code 474 * becomes a bit complex since I've tried to ensure that the jump 475 * statement after the pmove is in the cache already (otherwise the 476 * processor can't fetch it!). For that, the code first jumps to the 477 * jump statement with the (virtual) address of the pmove section in 478 * an address register . The jump statement is surely in the cache 479 * now. After that, that physical address of the reset code is loaded 480 * into the same address register, pmove is done and the same jump 481 * statements goes to the reset code. Since there are not many 482 * statements between the two jumps, I hope it stays in the cache. 483 * 484 * The C code makes heavy use of the GCC features that you can get the 485 * address of a C label. No hope to compile this with another compiler 486 * than GCC! 487 */ 488 489 /* ++andreas: no need for complicated code, just depend on prefetch */ 490 491 static void atari_reset(void) 492 { 493 long tc_val = 0; 494 long reset_addr; 495 496 /* 497 * On the Medusa, phys. 0x4 may contain garbage because it's no 498 * ROM. See above for explanation why we cannot use PTOV(4). 499 */ 500 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 501 *(unsigned long *) 0xff000004; 502 503 /* reset ACIA for switch off OverScan, if it's active */ 504 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 505 acia.key_ctrl = ACIA_RESET; 506 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 507 acia.mid_ctrl = ACIA_RESET; 508 509 /* processor independent: turn off interrupts and reset the VBR; 510 * the caches must be left enabled, else prefetching the final jump 511 * instruction doesn't work. 512 */ 513 local_irq_disable(); 514 asm volatile ("movec %0,%%vbr" 515 : : "d" (0)); 516 517 if (CPU_IS_040_OR_060) { 518 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 519 if (CPU_IS_060) { 520 /* 68060: clear PCR to turn off superscalar operation */ 521 asm volatile ("\n" 522 " .chip 68060\n" 523 " movec %0,%%pcr\n" 524 " .chip 68k" 525 : : "d" (0)); 526 } 527 528 asm volatile ("\n" 529 " move.l %0,%%d0\n" 530 " and.l #0xff000000,%%d0\n" 531 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 532 " .chip 68040\n" 533 " movec %%d0,%%itt0\n" 534 " movec %%d0,%%dtt0\n" 535 " .chip 68k\n" 536 " jmp %0@" 537 : : "a" (jmp_addr040) 538 : "d0"); 539 jmp_addr_label040: 540 asm volatile ("\n" 541 " moveq #0,%%d0\n" 542 " nop\n" 543 " .chip 68040\n" 544 " cinva %%bc\n" 545 " nop\n" 546 " pflusha\n" 547 " nop\n" 548 " movec %%d0,%%tc\n" 549 " nop\n" 550 /* the following setup of transparent translations is needed on the 551 * Afterburner040 to successfully reboot. Other machines shouldn't 552 * care about a different tt regs setup, they also didn't care in 553 * the past that the regs weren't turned off. */ 554 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 555 " movec %%d0,%%itt0\n" 556 " movec %%d0,%%itt1\n" 557 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 558 " movec %%d0,%%dtt0\n" 559 " movec %%d0,%%dtt1\n" 560 " .chip 68k\n" 561 " jmp %0@" 562 : /* no outputs */ 563 : "a" (reset_addr) 564 : "d0"); 565 } else 566 asm volatile ("\n" 567 " pmove %0,%%tc\n" 568 " jmp %1@" 569 : /* no outputs */ 570 : "m" (tc_val), "a" (reset_addr)); 571 } 572 573 574 static void atari_get_model(char *model) 575 { 576 strcpy(model, "Atari "); 577 switch (atari_mch_cookie >> 16) { 578 case ATARI_MCH_ST: 579 if (ATARIHW_PRESENT(MSTE_CLK)) 580 strcat(model, "Mega ST"); 581 else 582 strcat(model, "ST"); 583 break; 584 case ATARI_MCH_STE: 585 if (MACH_IS_MSTE) 586 strcat(model, "Mega STE"); 587 else 588 strcat(model, "STE"); 589 break; 590 case ATARI_MCH_TT: 591 if (MACH_IS_MEDUSA) 592 /* Medusa has TT _MCH cookie */ 593 strcat(model, "Medusa"); 594 else 595 strcat(model, "TT"); 596 break; 597 case ATARI_MCH_FALCON: 598 strcat(model, "Falcon"); 599 if (MACH_IS_AB40) 600 strcat(model, " (with Afterburner040)"); 601 break; 602 default: 603 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 604 atari_mch_cookie); 605 break; 606 } 607 } 608 609 610 static void atari_get_hardware_list(struct seq_file *m) 611 { 612 int i; 613 614 for (i = 0; i < m68k_num_memory; i++) 615 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 616 m68k_memory[i].size >> 20, m68k_memory[i].addr, 617 (m68k_memory[i].addr & 0xff000000 ? 618 "alternate RAM" : "ST-RAM")); 619 620 #define ATARIHW_ANNOUNCE(name, str) \ 621 if (ATARIHW_PRESENT(name)) \ 622 seq_printf(m, "\t%s\n", str) 623 624 seq_puts(m, "Detected hardware:\n"); 625 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 626 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 627 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 628 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 629 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 630 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 631 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 632 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 633 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 634 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 635 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 636 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 637 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 638 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 639 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 640 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 641 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 642 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 643 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 644 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 645 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 646 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 647 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 648 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 649 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 650 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 651 ATARIHW_ANNOUNCE(VME, "VME Bus"); 652 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 653 } 654 655 /* 656 * MSch: initial platform device support for Atari, 657 * required for EtherNAT/EtherNEC/NetUSBee drivers 658 */ 659 660 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 661 static void isp1160_delay(struct device *dev, int delay) 662 { 663 ndelay(delay); 664 } 665 #endif 666 667 #ifdef CONFIG_ATARI_ETHERNAT 668 /* 669 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 670 */ 671 672 #define ATARI_ETHERNAT_IRQ 140 673 674 static struct resource smc91x_resources[] = { 675 [0] = { 676 .name = "smc91x-regs", 677 .start = ATARI_ETHERNAT_PHYS_ADDR, 678 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 679 .flags = IORESOURCE_MEM, 680 }, 681 [1] = { 682 .name = "smc91x-irq", 683 .start = ATARI_ETHERNAT_IRQ, 684 .end = ATARI_ETHERNAT_IRQ, 685 .flags = IORESOURCE_IRQ, 686 }, 687 }; 688 689 static struct platform_device smc91x_device = { 690 .name = "smc91x", 691 .id = -1, 692 .num_resources = ARRAY_SIZE(smc91x_resources), 693 .resource = smc91x_resources, 694 }; 695 696 /* 697 * ISP 1160 - using the isp116x-hcd module 698 */ 699 700 #define ATARI_USB_PHYS_ADDR 0x80000012 701 #define ATARI_USB_IRQ 139 702 703 static struct resource isp1160_resources[] = { 704 [0] = { 705 .name = "isp1160-data", 706 .start = ATARI_USB_PHYS_ADDR, 707 .end = ATARI_USB_PHYS_ADDR + 0x1, 708 .flags = IORESOURCE_MEM, 709 }, 710 [1] = { 711 .name = "isp1160-regs", 712 .start = ATARI_USB_PHYS_ADDR + 0x4, 713 .end = ATARI_USB_PHYS_ADDR + 0x5, 714 .flags = IORESOURCE_MEM, 715 }, 716 [2] = { 717 .name = "isp1160-irq", 718 .start = ATARI_USB_IRQ, 719 .end = ATARI_USB_IRQ, 720 .flags = IORESOURCE_IRQ, 721 }, 722 }; 723 724 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 725 static struct isp116x_platform_data isp1160_platform_data = { 726 /* Enable internal resistors on downstream ports */ 727 .sel15Kres = 1, 728 /* On-chip overcurrent protection */ 729 .oc_enable = 1, 730 /* INT output polarity */ 731 .int_act_high = 1, 732 /* INT edge or level triggered */ 733 .int_edge_triggered = 0, 734 735 /* WAKEUP pin connected - NOT SUPPORTED */ 736 /* .remote_wakeup_connected = 0, */ 737 /* Wakeup by devices on usb bus enabled */ 738 .remote_wakeup_enable = 0, 739 .delay = isp1160_delay, 740 }; 741 742 static struct platform_device isp1160_device = { 743 .name = "isp116x-hcd", 744 .id = 0, 745 .num_resources = ARRAY_SIZE(isp1160_resources), 746 .resource = isp1160_resources, 747 .dev = { 748 .platform_data = &isp1160_platform_data, 749 }, 750 }; 751 752 static struct platform_device *atari_ethernat_devices[] __initdata = { 753 &smc91x_device, 754 &isp1160_device 755 }; 756 #endif /* CONFIG_ATARI_ETHERNAT */ 757 758 #ifdef CONFIG_ATARI_ETHERNEC 759 /* 760 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 761 * handled by ne.c driver 762 */ 763 764 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 765 #define ATARI_ETHERNEC_BASE 0x300 766 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 767 768 static struct resource rtl8019_resources[] = { 769 [0] = { 770 .name = "rtl8019-regs", 771 .start = ATARI_ETHERNEC_BASE, 772 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 773 .flags = IORESOURCE_IO, 774 }, 775 [1] = { 776 .name = "rtl8019-irq", 777 .start = ATARI_ETHERNEC_IRQ, 778 .end = ATARI_ETHERNEC_IRQ, 779 .flags = IORESOURCE_IRQ, 780 }, 781 }; 782 783 static struct platform_device rtl8019_device = { 784 .name = "ne", 785 .id = -1, 786 .num_resources = ARRAY_SIZE(rtl8019_resources), 787 .resource = rtl8019_resources, 788 }; 789 790 /* 791 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 792 */ 793 794 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 795 #define ATARI_NETUSBEE_BASE 0x340 796 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 797 798 static struct resource netusbee_resources[] = { 799 [0] = { 800 .name = "isp1160-data", 801 .start = ATARI_NETUSBEE_BASE, 802 .end = ATARI_NETUSBEE_BASE + 0x1, 803 .flags = IORESOURCE_MEM, 804 }, 805 [1] = { 806 .name = "isp1160-regs", 807 .start = ATARI_NETUSBEE_BASE + 0x20, 808 .end = ATARI_NETUSBEE_BASE + 0x21, 809 .flags = IORESOURCE_MEM, 810 }, 811 [2] = { 812 .name = "isp1160-irq", 813 .start = ATARI_NETUSBEE_IRQ, 814 .end = ATARI_NETUSBEE_IRQ, 815 .flags = IORESOURCE_IRQ, 816 }, 817 }; 818 819 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 820 static struct isp116x_platform_data netusbee_platform_data = { 821 /* Enable internal resistors on downstream ports */ 822 .sel15Kres = 1, 823 /* On-chip overcurrent protection */ 824 .oc_enable = 1, 825 /* INT output polarity */ 826 .int_act_high = 1, 827 /* INT edge or level triggered */ 828 .int_edge_triggered = 0, 829 830 /* WAKEUP pin connected - NOT SUPPORTED */ 831 /* .remote_wakeup_connected = 0, */ 832 /* Wakeup by devices on usb bus enabled */ 833 .remote_wakeup_enable = 0, 834 .delay = isp1160_delay, 835 }; 836 837 static struct platform_device netusbee_device = { 838 .name = "isp116x-hcd", 839 .id = 1, 840 .num_resources = ARRAY_SIZE(netusbee_resources), 841 .resource = netusbee_resources, 842 .dev = { 843 .platform_data = &netusbee_platform_data, 844 }, 845 }; 846 847 static struct platform_device *atari_netusbee_devices[] __initdata = { 848 &rtl8019_device, 849 &netusbee_device 850 }; 851 #endif /* CONFIG_ATARI_ETHERNEC */ 852 853 #if IS_ENABLED(CONFIG_ATARI_SCSI) 854 static const struct resource atari_scsi_st_rsrc[] __initconst = { 855 { 856 .flags = IORESOURCE_IRQ, 857 .start = IRQ_MFP_FSCSI, 858 .end = IRQ_MFP_FSCSI, 859 }, 860 }; 861 862 static const struct resource atari_scsi_tt_rsrc[] __initconst = { 863 { 864 .flags = IORESOURCE_IRQ, 865 .start = IRQ_TT_MFP_SCSI, 866 .end = IRQ_TT_MFP_SCSI, 867 }, 868 }; 869 #endif 870 871 /* 872 * Falcon IDE interface 873 */ 874 875 #define FALCON_IDE_BASE 0xfff00000 876 877 static const struct resource atari_falconide_rsrc[] __initconst = { 878 { 879 .flags = IORESOURCE_MEM, 880 .start = FALCON_IDE_BASE, 881 .end = FALCON_IDE_BASE + 0x39, 882 }, 883 { 884 .flags = IORESOURCE_IRQ, 885 .start = IRQ_MFP_FSCSI, 886 .end = IRQ_MFP_FSCSI, 887 }, 888 }; 889 890 int __init atari_platform_init(void) 891 { 892 struct platform_device *pdev; 893 int rv = 0; 894 895 if (!MACH_IS_ATARI) 896 return -ENODEV; 897 898 #ifdef CONFIG_ATARI_ETHERNAT 899 { 900 unsigned char *enatc_virt; 901 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 902 if (hwreg_present(enatc_virt)) { 903 rv = platform_add_devices(atari_ethernat_devices, 904 ARRAY_SIZE(atari_ethernat_devices)); 905 } 906 iounmap(enatc_virt); 907 } 908 #endif 909 910 #ifdef CONFIG_ATARI_ETHERNEC 911 { 912 int error; 913 unsigned char *enec_virt; 914 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 915 if (hwreg_present(enec_virt)) { 916 error = platform_add_devices(atari_netusbee_devices, 917 ARRAY_SIZE(atari_netusbee_devices)); 918 if (error && !rv) 919 rv = error; 920 } 921 iounmap(enec_virt); 922 } 923 #endif 924 925 #if IS_ENABLED(CONFIG_ATARI_SCSI) 926 if (ATARIHW_PRESENT(ST_SCSI)) 927 platform_device_register_simple("atari_scsi", -1, 928 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc)); 929 else if (ATARIHW_PRESENT(TT_SCSI)) 930 platform_device_register_simple("atari_scsi", -1, 931 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc)); 932 #endif 933 934 if (ATARIHW_PRESENT(IDE)) { 935 pdev = platform_device_register_simple("atari-falcon-ide", -1, 936 atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc)); 937 if (IS_ERR(pdev)) 938 rv = PTR_ERR(pdev); 939 } 940 941 return rv; 942 } 943 944 arch_initcall(atari_platform_init); 945