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
scc_test(volatile char * ctla)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
atari_parse_bootinfo(const struct bi_record * record)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. */
atari_switches_setup(char * str)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
config_atari(void)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
atari_heartbeat(int on)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
atari_reset(void)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
atari_get_model(char * model)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
atari_get_hardware_list(struct seq_file * m)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)
isp1160_delay(struct device * dev,int delay)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
atari_platform_init(void)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