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#include <asm/config.h> 50 51#include "atari.h" 52 53u_long atari_mch_cookie; 54EXPORT_SYMBOL(atari_mch_cookie); 55 56u_long atari_mch_type; 57EXPORT_SYMBOL(atari_mch_type); 58 59struct atari_hw_present atari_hw_present; 60EXPORT_SYMBOL(atari_hw_present); 61 62u_long atari_switches; 63EXPORT_SYMBOL(atari_switches); 64 65int atari_dont_touch_floppy_select; 66EXPORT_SYMBOL(atari_dont_touch_floppy_select); 67 68int atari_rtc_year_offset; 69 70/* local function prototypes */ 71static void atari_reset(void); 72static void atari_get_model(char *model); 73static void atari_get_hardware_list(struct seq_file *m); 74#ifdef CONFIG_HEARTBEAT 75static void atari_heartbeat(int on); 76#endif 77 78/* ++roman: This is a more elaborate test for an SCC chip, since the plain 79 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC 80 * board in the Medusa is possible. Also, the addresses where the ST_ESCC 81 * resides generate DTACK without the chip, too. 82 * The method is to write values into the interrupt vector register, that 83 * should be readable without trouble (from channel A!). 84 */ 85 86static int __init scc_test(volatile char *ctla) 87{ 88 if (!hwreg_present(ctla)) 89 return 0; 90 MFPDELAY(); 91 92 *ctla = 2; 93 MFPDELAY(); 94 *ctla = 0x40; 95 MFPDELAY(); 96 97 *ctla = 2; 98 MFPDELAY(); 99 if (*ctla != 0x40) 100 return 0; 101 MFPDELAY(); 102 103 *ctla = 2; 104 MFPDELAY(); 105 *ctla = 0x60; 106 MFPDELAY(); 107 108 *ctla = 2; 109 MFPDELAY(); 110 if (*ctla != 0x60) 111 return 0; 112 113 return 1; 114} 115 116 117 /* 118 * Parse an Atari-specific record in the bootinfo 119 */ 120 121int __init atari_parse_bootinfo(const struct bi_record *record) 122{ 123 int unknown = 0; 124 const void *data = record->data; 125 126 switch (be16_to_cpu(record->tag)) { 127 case BI_ATARI_MCH_COOKIE: 128 atari_mch_cookie = be32_to_cpup(data); 129 break; 130 case BI_ATARI_MCH_TYPE: 131 atari_mch_type = be32_to_cpup(data); 132 break; 133 default: 134 unknown = 1; 135 break; 136 } 137 return unknown; 138} 139 140 141/* Parse the Atari-specific switches= option. */ 142static int __init atari_switches_setup(char *str) 143{ 144 char switches[COMMAND_LINE_SIZE]; 145 char *p; 146 int ovsc_shift; 147 char *args = switches; 148 149 if (!MACH_IS_ATARI) 150 return 0; 151 152 /* copy string to local array, strsep works destructively... */ 153 strcpy(switches, str); 154 atari_switches = 0; 155 156 /* parse the options */ 157 while ((p = strsep(&args, ",")) != NULL) { 158 if (!*p) 159 continue; 160 ovsc_shift = 0; 161 if (strncmp(p, "ov_", 3) == 0) { 162 p += 3; 163 ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; 164 } 165 166 if (strcmp(p, "ikbd") == 0) { 167 /* RTS line of IKBD ACIA */ 168 atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; 169 } else if (strcmp(p, "midi") == 0) { 170 /* RTS line of MIDI ACIA */ 171 atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; 172 } else if (strcmp(p, "snd6") == 0) { 173 atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; 174 } else if (strcmp(p, "snd7") == 0) { 175 atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; 176 } 177 } 178 return 0; 179} 180 181early_param("switches", atari_switches_setup); 182 183 184 /* 185 * Setup the Atari configuration info 186 */ 187 188void __init config_atari(void) 189{ 190 unsigned short tos_version; 191 192 memset(&atari_hw_present, 0, sizeof(atari_hw_present)); 193 194 /* Change size of I/O space from 64KB to 4GB. */ 195 ioport_resource.end = 0xFFFFFFFF; 196 197 mach_sched_init = atari_sched_init; 198 mach_init_IRQ = atari_init_IRQ; 199 mach_get_model = atari_get_model; 200 mach_get_hardware_list = atari_get_hardware_list; 201 mach_reset = atari_reset; 202#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 203 mach_beep = atari_mksound; 204#endif 205#ifdef CONFIG_HEARTBEAT 206 mach_heartbeat = atari_heartbeat; 207#endif 208 209 /* Set switches as requested by the user */ 210 if (atari_switches & ATARI_SWITCH_IKBD) 211 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; 212 if (atari_switches & ATARI_SWITCH_MIDI) 213 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; 214 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { 215 sound_ym.rd_data_reg_sel = 14; 216 sound_ym.wd_data = sound_ym.rd_data_reg_sel | 217 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | 218 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); 219 } 220 221 /* ++bjoern: 222 * Determine hardware present 223 */ 224 225 pr_info("Atari hardware found:"); 226 if (MACH_IS_MEDUSA) { 227 /* There's no Atari video hardware on the Medusa, but all the 228 * addresses below generate a DTACK so no bus error occurs! */ 229 } else if (hwreg_present(f030_xreg)) { 230 ATARIHW_SET(VIDEL_SHIFTER); 231 pr_cont(" VIDEL"); 232 /* This is a temporary hack: If there is Falcon video 233 * hardware, we assume that the ST-DMA serves SCSI instead of 234 * ACSI. In the future, there should be a better method for 235 * this... 236 */ 237 ATARIHW_SET(ST_SCSI); 238 pr_cont(" STDMA-SCSI"); 239 } else if (hwreg_present(tt_palette)) { 240 ATARIHW_SET(TT_SHIFTER); 241 pr_cont(" TT_SHIFTER"); 242 } else if (hwreg_present(&shifter_st.bas_hi)) { 243 if (hwreg_present(&shifter_st.bas_lo) && 244 (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) { 245 ATARIHW_SET(EXTD_SHIFTER); 246 pr_cont(" EXTD_SHIFTER"); 247 } else { 248 ATARIHW_SET(STND_SHIFTER); 249 pr_cont(" STND_SHIFTER"); 250 } 251 } 252 if (hwreg_present(&st_mfp.par_dt_reg)) { 253 ATARIHW_SET(ST_MFP); 254 pr_cont(" ST_MFP"); 255 } 256 if (hwreg_present(&tt_mfp.par_dt_reg)) { 257 ATARIHW_SET(TT_MFP); 258 pr_cont(" TT_MFP"); 259 } 260 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { 261 ATARIHW_SET(SCSI_DMA); 262 pr_cont(" TT_SCSI_DMA"); 263 } 264 /* 265 * The ST-DMA address registers aren't readable 266 * on all Medusas, so the test below may fail 267 */ 268 if (MACH_IS_MEDUSA || 269 (hwreg_present(&st_dma.dma_vhi) && 270 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && 271 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && 272 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && 273 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { 274 ATARIHW_SET(EXTD_DMA); 275 pr_cont(" EXTD_DMA"); 276 } 277 if (hwreg_present(&tt_scsi.scsi_data)) { 278 ATARIHW_SET(TT_SCSI); 279 pr_cont(" TT_SCSI"); 280 } 281 if (hwreg_present(&sound_ym.rd_data_reg_sel)) { 282 ATARIHW_SET(YM_2149); 283 pr_cont(" YM2149"); 284 } 285 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) { 286 ATARIHW_SET(PCM_8BIT); 287 pr_cont(" PCM"); 288 } 289 if (hwreg_present(&falcon_codec.unused5)) { 290 ATARIHW_SET(CODEC); 291 pr_cont(" CODEC"); 292 } 293 if (hwreg_present(&dsp56k_host_interface.icr)) { 294 ATARIHW_SET(DSP56K); 295 pr_cont(" DSP56K"); 296 } 297 if (hwreg_present(&tt_scc_dma.dma_ctrl) && 298#if 0 299 /* This test sucks! Who knows some better? */ 300 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && 301 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) 302#else 303 !MACH_IS_MEDUSA 304#endif 305 ) { 306 ATARIHW_SET(SCC_DMA); 307 pr_cont(" SCC_DMA"); 308 } 309 if (scc_test(&atari_scc.cha_a_ctrl)) { 310 ATARIHW_SET(SCC); 311 pr_cont(" SCC"); 312 } 313 if (scc_test(&st_escc.cha_b_ctrl)) { 314 ATARIHW_SET(ST_ESCC); 315 pr_cont(" ST_ESCC"); 316 } 317 if (hwreg_present(&tt_scu.sys_mask)) { 318 ATARIHW_SET(SCU); 319 /* Assume a VME bus if there's a SCU */ 320 ATARIHW_SET(VME); 321 pr_cont(" VME SCU"); 322 } 323 if (hwreg_present((void *)(0xffff9210))) { 324 ATARIHW_SET(ANALOG_JOY); 325 pr_cont(" ANALOG_JOY"); 326 } 327 if (hwreg_present(blitter.halftone)) { 328 ATARIHW_SET(BLITTER); 329 pr_cont(" BLITTER"); 330 } 331 if (hwreg_present((void *)0xfff00039)) { 332 ATARIHW_SET(IDE); 333 pr_cont(" IDE"); 334 } 335#if 1 /* This maybe wrong */ 336 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) && 337 hwreg_present(&tt_microwire.mask) && 338 (tt_microwire.mask = 0x7ff, 339 udelay(1), 340 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, 341 udelay(1), 342 tt_microwire.data != 0)) { 343 ATARIHW_SET(MICROWIRE); 344 while (tt_microwire.mask != 0x7ff) 345 ; 346 pr_cont(" MICROWIRE"); 347 } 348#endif 349 if (hwreg_present(&tt_rtc.regsel)) { 350 ATARIHW_SET(TT_CLK); 351 pr_cont(" TT_CLK"); 352 mach_hwclk = atari_tt_hwclk; 353 } 354 if (hwreg_present(&mste_rtc.sec_ones)) { 355 ATARIHW_SET(MSTE_CLK); 356 pr_cont(" MSTE_CLK"); 357 mach_hwclk = atari_mste_hwclk; 358 } 359 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) && 360 hwreg_write(&dma_wd.fdc_speed, 0)) { 361 ATARIHW_SET(FDCSPEED); 362 pr_cont(" FDC_SPEED"); 363 } 364 if (!ATARIHW_PRESENT(ST_SCSI)) { 365 ATARIHW_SET(ACSI); 366 pr_cont(" ACSI"); 367 } 368 pr_cont("\n"); 369 370 if (CPU_IS_040_OR_060) 371 /* Now it seems to be safe to turn of the tt0 transparent 372 * translation (the one that must not be turned off in 373 * head.S...) 374 */ 375 asm volatile ("\n" 376 " moveq #0,%%d0\n" 377 " .chip 68040\n" 378 " movec %%d0,%%itt0\n" 379 " movec %%d0,%%dtt0\n" 380 " .chip 68k" 381 : /* no outputs */ 382 : /* no inputs */ 383 : "d0"); 384 385 /* allocator for memory that must reside in st-ram */ 386 atari_stram_init(); 387 388 /* Set up a mapping for the VMEbus address region: 389 * 390 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff 391 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at 392 * 0xfe000000 virt., because this can be done with a single 393 * transparent translation. On the 68040, lots of often unused 394 * page tables would be needed otherwise. On a MegaSTE or similar, 395 * the highest byte is stripped off by hardware due to the 24 bit 396 * design of the bus. 397 */ 398 399 if (CPU_IS_020_OR_030) { 400 unsigned long tt1_val; 401 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache 402 * inhibit, read and write, FDC mask = 3, 403 * FDC val = 4 -> Supervisor only */ 404 asm volatile ("\n" 405 " .chip 68030\n" 406 " pmove %0,%/tt1\n" 407 " .chip 68k" 408 : : "m" (tt1_val)); 409 } else { 410 asm volatile ("\n" 411 " .chip 68040\n" 412 " movec %0,%%itt1\n" 413 " movec %0,%%dtt1\n" 414 " .chip 68k" 415 : 416 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, 417 * supervisor only, non-cacheable/ 418 * serialized, writable */ 419 420 } 421 422 /* Fetch tos version at Physical 2 */ 423 /* 424 * We my not be able to access this address if the kernel is 425 * loaded to st ram, since the first page is unmapped. On the 426 * Medusa this is always the case and there is nothing we can do 427 * about this, so we just assume the smaller offset. For the TT 428 * we use the fact that in head.S we have set up a mapping 429 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible 430 * in the last 16MB of the address space. 431 */ 432 tos_version = (MACH_IS_MEDUSA) ? 433 0xfff : *(unsigned short *)0xff000002; 434 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; 435} 436 437#ifdef CONFIG_HEARTBEAT 438static void atari_heartbeat(int on) 439{ 440 unsigned char tmp; 441 unsigned long flags; 442 443 if (atari_dont_touch_floppy_select) 444 return; 445 446 local_irq_save(flags); 447 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ 448 tmp = sound_ym.rd_data_reg_sel; 449 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); 450 local_irq_restore(flags); 451} 452#endif 453 454/* ++roman: 455 * 456 * This function does a reset on machines that lack the ability to 457 * assert the processor's _RESET signal somehow via hardware. It is 458 * based on the fact that you can find the initial SP and PC values 459 * after a reset at physical addresses 0 and 4. This works pretty well 460 * for Atari machines, since the lowest 8 bytes of physical memory are 461 * really ROM (mapped by hardware). For other 680x0 machines: don't 462 * know if it works... 463 * 464 * To get the values at addresses 0 and 4, the MMU better is turned 465 * off first. After that, we have to jump into physical address space 466 * (the PC before the pmove statement points to the virtual address of 467 * the code). Getting that physical address is not hard, but the code 468 * becomes a bit complex since I've tried to ensure that the jump 469 * statement after the pmove is in the cache already (otherwise the 470 * processor can't fetch it!). For that, the code first jumps to the 471 * jump statement with the (virtual) address of the pmove section in 472 * an address register . The jump statement is surely in the cache 473 * now. After that, that physical address of the reset code is loaded 474 * into the same address register, pmove is done and the same jump 475 * statements goes to the reset code. Since there are not many 476 * statements between the two jumps, I hope it stays in the cache. 477 * 478 * The C code makes heavy use of the GCC features that you can get the 479 * address of a C label. No hope to compile this with another compiler 480 * than GCC! 481 */ 482 483/* ++andreas: no need for complicated code, just depend on prefetch */ 484 485static void atari_reset(void) 486{ 487 long tc_val = 0; 488 long reset_addr; 489 490 /* 491 * On the Medusa, phys. 0x4 may contain garbage because it's no 492 * ROM. See above for explanation why we cannot use PTOV(4). 493 */ 494 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : 495 *(unsigned long *) 0xff000004; 496 497 /* reset ACIA for switch off OverScan, if it's active */ 498 if (atari_switches & ATARI_SWITCH_OVSC_IKBD) 499 acia.key_ctrl = ACIA_RESET; 500 if (atari_switches & ATARI_SWITCH_OVSC_MIDI) 501 acia.mid_ctrl = ACIA_RESET; 502 503 /* processor independent: turn off interrupts and reset the VBR; 504 * the caches must be left enabled, else prefetching the final jump 505 * instruction doesn't work. 506 */ 507 local_irq_disable(); 508 asm volatile ("movec %0,%%vbr" 509 : : "d" (0)); 510 511 if (CPU_IS_040_OR_060) { 512 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 513 if (CPU_IS_060) { 514 /* 68060: clear PCR to turn off superscalar operation */ 515 asm volatile ("\n" 516 " .chip 68060\n" 517 " movec %0,%%pcr\n" 518 " .chip 68k" 519 : : "d" (0)); 520 } 521 522 asm volatile ("\n" 523 " move.l %0,%%d0\n" 524 " and.l #0xff000000,%%d0\n" 525 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 526 " .chip 68040\n" 527 " movec %%d0,%%itt0\n" 528 " movec %%d0,%%dtt0\n" 529 " .chip 68k\n" 530 " jmp %0@" 531 : : "a" (jmp_addr040) 532 : "d0"); 533 jmp_addr_label040: 534 asm volatile ("\n" 535 " moveq #0,%%d0\n" 536 " nop\n" 537 " .chip 68040\n" 538 " cinva %%bc\n" 539 " nop\n" 540 " pflusha\n" 541 " nop\n" 542 " movec %%d0,%%tc\n" 543 " nop\n" 544 /* the following setup of transparent translations is needed on the 545 * Afterburner040 to successfully reboot. Other machines shouldn't 546 * care about a different tt regs setup, they also didn't care in 547 * the past that the regs weren't turned off. */ 548 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ 549 " movec %%d0,%%itt0\n" 550 " movec %%d0,%%itt1\n" 551 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ 552 " movec %%d0,%%dtt0\n" 553 " movec %%d0,%%dtt1\n" 554 " .chip 68k\n" 555 " jmp %0@" 556 : /* no outputs */ 557 : "a" (reset_addr) 558 : "d0"); 559 } else 560 asm volatile ("\n" 561 " pmove %0,%%tc\n" 562 " jmp %1@" 563 : /* no outputs */ 564 : "m" (tc_val), "a" (reset_addr)); 565} 566 567 568static void atari_get_model(char *model) 569{ 570 strcpy(model, "Atari "); 571 switch (atari_mch_cookie >> 16) { 572 case ATARI_MCH_ST: 573 if (ATARIHW_PRESENT(MSTE_CLK)) 574 strcat(model, "Mega ST"); 575 else 576 strcat(model, "ST"); 577 break; 578 case ATARI_MCH_STE: 579 if (MACH_IS_MSTE) 580 strcat(model, "Mega STE"); 581 else 582 strcat(model, "STE"); 583 break; 584 case ATARI_MCH_TT: 585 if (MACH_IS_MEDUSA) 586 /* Medusa has TT _MCH cookie */ 587 strcat(model, "Medusa"); 588 else 589 strcat(model, "TT"); 590 break; 591 case ATARI_MCH_FALCON: 592 strcat(model, "Falcon"); 593 if (MACH_IS_AB40) 594 strcat(model, " (with Afterburner040)"); 595 break; 596 default: 597 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", 598 atari_mch_cookie); 599 break; 600 } 601} 602 603 604static void atari_get_hardware_list(struct seq_file *m) 605{ 606 int i; 607 608 for (i = 0; i < m68k_num_memory; i++) 609 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n", 610 m68k_memory[i].size >> 20, m68k_memory[i].addr, 611 (m68k_memory[i].addr & 0xff000000 ? 612 "alternate RAM" : "ST-RAM")); 613 614#define ATARIHW_ANNOUNCE(name, str) \ 615 if (ATARIHW_PRESENT(name)) \ 616 seq_printf(m, "\t%s\n", str) 617 618 seq_puts(m, "Detected hardware:\n"); 619 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); 620 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); 621 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); 622 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); 623 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); 624 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); 625 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); 626 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); 627 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); 628 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); 629 ATARIHW_ANNOUNCE(IDE, "IDE Interface"); 630 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); 631 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); 632 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); 633 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); 634 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); 635 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); 636 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); 637 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); 638 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); 639 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); 640 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); 641 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); 642 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); 643 ATARIHW_ANNOUNCE(SCU, "System Control Unit"); 644 ATARIHW_ANNOUNCE(BLITTER, "Blitter"); 645 ATARIHW_ANNOUNCE(VME, "VME Bus"); 646 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); 647} 648 649/* 650 * MSch: initial platform device support for Atari, 651 * required for EtherNAT/EtherNEC/NetUSBee drivers 652 */ 653 654#if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) 655static void isp1160_delay(struct device *dev, int delay) 656{ 657 ndelay(delay); 658} 659#endif 660 661#ifdef CONFIG_ATARI_ETHERNAT 662/* 663 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver 664 */ 665 666#define ATARI_ETHERNAT_IRQ 140 667 668static struct resource smc91x_resources[] = { 669 [0] = { 670 .name = "smc91x-regs", 671 .start = ATARI_ETHERNAT_PHYS_ADDR, 672 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, 673 .flags = IORESOURCE_MEM, 674 }, 675 [1] = { 676 .name = "smc91x-irq", 677 .start = ATARI_ETHERNAT_IRQ, 678 .end = ATARI_ETHERNAT_IRQ, 679 .flags = IORESOURCE_IRQ, 680 }, 681}; 682 683static struct platform_device smc91x_device = { 684 .name = "smc91x", 685 .id = -1, 686 .num_resources = ARRAY_SIZE(smc91x_resources), 687 .resource = smc91x_resources, 688}; 689 690/* 691 * ISP 1160 - using the isp116x-hcd module 692 */ 693 694#define ATARI_USB_PHYS_ADDR 0x80000012 695#define ATARI_USB_IRQ 139 696 697static struct resource isp1160_resources[] = { 698 [0] = { 699 .name = "isp1160-data", 700 .start = ATARI_USB_PHYS_ADDR, 701 .end = ATARI_USB_PHYS_ADDR + 0x1, 702 .flags = IORESOURCE_MEM, 703 }, 704 [1] = { 705 .name = "isp1160-regs", 706 .start = ATARI_USB_PHYS_ADDR + 0x4, 707 .end = ATARI_USB_PHYS_ADDR + 0x5, 708 .flags = IORESOURCE_MEM, 709 }, 710 [2] = { 711 .name = "isp1160-irq", 712 .start = ATARI_USB_IRQ, 713 .end = ATARI_USB_IRQ, 714 .flags = IORESOURCE_IRQ, 715 }, 716}; 717 718/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 719static struct isp116x_platform_data isp1160_platform_data = { 720 /* Enable internal resistors on downstream ports */ 721 .sel15Kres = 1, 722 /* On-chip overcurrent protection */ 723 .oc_enable = 1, 724 /* INT output polarity */ 725 .int_act_high = 1, 726 /* INT edge or level triggered */ 727 .int_edge_triggered = 0, 728 729 /* WAKEUP pin connected - NOT SUPPORTED */ 730 /* .remote_wakeup_connected = 0, */ 731 /* Wakeup by devices on usb bus enabled */ 732 .remote_wakeup_enable = 0, 733 .delay = isp1160_delay, 734}; 735 736static struct platform_device isp1160_device = { 737 .name = "isp116x-hcd", 738 .id = 0, 739 .num_resources = ARRAY_SIZE(isp1160_resources), 740 .resource = isp1160_resources, 741 .dev = { 742 .platform_data = &isp1160_platform_data, 743 }, 744}; 745 746static struct platform_device *atari_ethernat_devices[] __initdata = { 747 &smc91x_device, 748 &isp1160_device 749}; 750#endif /* CONFIG_ATARI_ETHERNAT */ 751 752#ifdef CONFIG_ATARI_ETHERNEC 753/* 754 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, 755 * handled by ne.c driver 756 */ 757 758#define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 759#define ATARI_ETHERNEC_BASE 0x300 760#define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 761 762static struct resource rtl8019_resources[] = { 763 [0] = { 764 .name = "rtl8019-regs", 765 .start = ATARI_ETHERNEC_BASE, 766 .end = ATARI_ETHERNEC_BASE + 0x20 - 1, 767 .flags = IORESOURCE_IO, 768 }, 769 [1] = { 770 .name = "rtl8019-irq", 771 .start = ATARI_ETHERNEC_IRQ, 772 .end = ATARI_ETHERNEC_IRQ, 773 .flags = IORESOURCE_IRQ, 774 }, 775}; 776 777static struct platform_device rtl8019_device = { 778 .name = "ne", 779 .id = -1, 780 .num_resources = ARRAY_SIZE(rtl8019_resources), 781 .resource = rtl8019_resources, 782}; 783 784/* 785 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter 786 */ 787 788#define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 789#define ATARI_NETUSBEE_BASE 0x340 790#define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 791 792static struct resource netusbee_resources[] = { 793 [0] = { 794 .name = "isp1160-data", 795 .start = ATARI_NETUSBEE_BASE, 796 .end = ATARI_NETUSBEE_BASE + 0x1, 797 .flags = IORESOURCE_MEM, 798 }, 799 [1] = { 800 .name = "isp1160-regs", 801 .start = ATARI_NETUSBEE_BASE + 0x20, 802 .end = ATARI_NETUSBEE_BASE + 0x21, 803 .flags = IORESOURCE_MEM, 804 }, 805 [2] = { 806 .name = "isp1160-irq", 807 .start = ATARI_NETUSBEE_IRQ, 808 .end = ATARI_NETUSBEE_IRQ, 809 .flags = IORESOURCE_IRQ, 810 }, 811}; 812 813/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ 814static struct isp116x_platform_data netusbee_platform_data = { 815 /* Enable internal resistors on downstream ports */ 816 .sel15Kres = 1, 817 /* On-chip overcurrent protection */ 818 .oc_enable = 1, 819 /* INT output polarity */ 820 .int_act_high = 1, 821 /* INT edge or level triggered */ 822 .int_edge_triggered = 0, 823 824 /* WAKEUP pin connected - NOT SUPPORTED */ 825 /* .remote_wakeup_connected = 0, */ 826 /* Wakeup by devices on usb bus enabled */ 827 .remote_wakeup_enable = 0, 828 .delay = isp1160_delay, 829}; 830 831static struct platform_device netusbee_device = { 832 .name = "isp116x-hcd", 833 .id = 1, 834 .num_resources = ARRAY_SIZE(netusbee_resources), 835 .resource = netusbee_resources, 836 .dev = { 837 .platform_data = &netusbee_platform_data, 838 }, 839}; 840 841static struct platform_device *atari_netusbee_devices[] __initdata = { 842 &rtl8019_device, 843 &netusbee_device 844}; 845#endif /* CONFIG_ATARI_ETHERNEC */ 846 847#if IS_ENABLED(CONFIG_ATARI_SCSI) 848static const struct resource atari_scsi_st_rsrc[] __initconst = { 849 { 850 .flags = IORESOURCE_IRQ, 851 .start = IRQ_MFP_FSCSI, 852 .end = IRQ_MFP_FSCSI, 853 }, 854}; 855 856static const struct resource atari_scsi_tt_rsrc[] __initconst = { 857 { 858 .flags = IORESOURCE_IRQ, 859 .start = IRQ_TT_MFP_SCSI, 860 .end = IRQ_TT_MFP_SCSI, 861 }, 862}; 863#endif 864 865/* 866 * Falcon IDE interface 867 */ 868 869#define FALCON_IDE_BASE 0xfff00000 870 871static const struct resource atari_falconide_rsrc[] __initconst = { 872 DEFINE_RES_MEM(FALCON_IDE_BASE, 0x38), 873 DEFINE_RES_MEM(FALCON_IDE_BASE + 0x38, 2), 874}; 875 876static int __init atari_platform_init(void) 877{ 878 struct platform_device *pdev; 879 int rv = 0; 880 881 if (!MACH_IS_ATARI) 882 return -ENODEV; 883 884#ifdef CONFIG_ATARI_ETHERNAT 885 { 886 unsigned char *enatc_virt; 887 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); 888 if (hwreg_present(enatc_virt)) { 889 rv = platform_add_devices(atari_ethernat_devices, 890 ARRAY_SIZE(atari_ethernat_devices)); 891 } 892 iounmap(enatc_virt); 893 } 894#endif 895 896#ifdef CONFIG_ATARI_ETHERNEC 897 { 898 int error; 899 unsigned char *enec_virt; 900 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); 901 if (hwreg_present(enec_virt)) { 902 error = platform_add_devices(atari_netusbee_devices, 903 ARRAY_SIZE(atari_netusbee_devices)); 904 if (error && !rv) 905 rv = error; 906 } 907 iounmap(enec_virt); 908 } 909#endif 910 911#if IS_ENABLED(CONFIG_ATARI_SCSI) 912 if (ATARIHW_PRESENT(ST_SCSI)) 913 platform_device_register_simple("atari_scsi", -1, 914 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc)); 915 else if (ATARIHW_PRESENT(TT_SCSI)) 916 platform_device_register_simple("atari_scsi", -1, 917 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc)); 918#endif 919 920 if (ATARIHW_PRESENT(IDE)) { 921 pdev = platform_device_register_simple("atari-falcon-ide", -1, 922 atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc)); 923 if (IS_ERR(pdev)) 924 rv = PTR_ERR(pdev); 925 } 926 927 return rv; 928} 929 930arch_initcall(atari_platform_init); 931