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Linux 5.8-rc4
[linux/fpc-iii.git] / arch / m68k / atari / config.c
blob7ec3161e8517d8c4f607adb01be9177127f79408
1 /*
2 * linux/arch/m68k/atari/config.c
3 *
4 * Copyright (C) 1994 Bjoern Brauel
5 *
6 * 5/2/94 Roman Hodek:
7 * Added setting of time_adj to get a better clock.
8 *
9 * 5/14/94 Roman Hodek:
10 * gettod() for TT
11 *
12 * 5/15/94 Roman Hodek:
13 * hard_reset_now() for Atari (and others?)
14 *
15 * 94/12/30 Andreas Schwab:
16 * atari_sched_init fixed to get precise clock.
17 *
18 * This file is subject to the terms and conditions of the GNU General Public
19 * License. See the file COPYING in the main directory of this archive
20 * for more details.
21 */
22
23 /*
24 * Miscellaneous atari stuff
25 */
26
27 #include <linux/types.h>
28 #include <linux/mm.h>
29 #include <linux/seq_file.h>
30 #include <linux/console.h>
31 #include <linux/init.h>
32 #include <linux/delay.h>
33 #include <linux/ioport.h>
34 #include <linux/platform_device.h>
35 #include <linux/usb/isp116x.h>
36 #include <linux/vt_kern.h>
37 #include <linux/module.h>
38
39 #include <asm/bootinfo.h>
40 #include <asm/bootinfo-atari.h>
41 #include <asm/byteorder.h>
42 #include <asm/setup.h>
43 #include <asm/atarihw.h>
44 #include <asm/atariints.h>
45 #include <asm/atari_stram.h>
46 #include <asm/machdep.h>
47 #include <asm/hwtest.h>
48 #include <asm/io.h>
49
50 u_long atari_mch_cookie;
51 EXPORT_SYMBOL(atari_mch_cookie);
52
53 u_long atari_mch_type;
54 EXPORT_SYMBOL(atari_mch_type);
55
56 struct atari_hw_present atari_hw_present;
57 EXPORT_SYMBOL(atari_hw_present);
58
59 u_long atari_switches;
60 EXPORT_SYMBOL(atari_switches);
61
62 int atari_dont_touch_floppy_select;
63 EXPORT_SYMBOL(atari_dont_touch_floppy_select);
64
65 int atari_rtc_year_offset;
66
67 /* local function prototypes */
68 static void atari_reset(void);
69 static void atari_get_model(char *model);
70 static void atari_get_hardware_list(struct seq_file *m);
71
72 /* atari specific irq functions */
73 extern void atari_init_IRQ (void);
74 extern void atari_mksound(unsigned int count, unsigned int ticks);
75 #ifdef CONFIG_HEARTBEAT
76 static void atari_heartbeat(int on);
77 #endif
78
79 /* atari specific timer functions (in time.c) */
80 extern void atari_sched_init(irq_handler_t);
81 extern 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 mach_max_dma_address = 0xffffff;
209 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
210 mach_beep = atari_mksound;
211 #endif
212 #ifdef CONFIG_HEARTBEAT
213 mach_heartbeat = atari_heartbeat;
214 #endif
215
216 /* Set switches as requested by the user */
217 if (atari_switches & ATARI_SWITCH_IKBD)
218 acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID;
219 if (atari_switches & ATARI_SWITCH_MIDI)
220 acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
221 if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) {
222 sound_ym.rd_data_reg_sel = 14;
223 sound_ym.wd_data = sound_ym.rd_data_reg_sel |
224 ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) |
225 ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0);
226 }
227
228 /* ++bjoern:
229 * Determine hardware present
230 */
231
232 pr_info("Atari hardware found:");
233 if (MACH_IS_MEDUSA) {
234 /* There's no Atari video hardware on the Medusa, but all the
235 * addresses below generate a DTACK so no bus error occurs! */
236 } else if (hwreg_present(f030_xreg)) {
237 ATARIHW_SET(VIDEL_SHIFTER);
238 pr_cont(" VIDEL");
239 /* This is a temporary hack: If there is Falcon video
240 * hardware, we assume that the ST-DMA serves SCSI instead of
241 * ACSI. In the future, there should be a better method for
242 * this...
243 */
244 ATARIHW_SET(ST_SCSI);
245 pr_cont(" STDMA-SCSI");
246 } else if (hwreg_present(tt_palette)) {
247 ATARIHW_SET(TT_SHIFTER);
248 pr_cont(" TT_SHIFTER");
249 } else if (hwreg_present(&shifter_st.bas_hi)) {
250 if (hwreg_present(&shifter_st.bas_lo) &&
251 (shifter_st.bas_lo = 0x0aau, shifter_st.bas_lo == 0x0aau)) {
252 ATARIHW_SET(EXTD_SHIFTER);
253 pr_cont(" EXTD_SHIFTER");
254 } else {
255 ATARIHW_SET(STND_SHIFTER);
256 pr_cont(" STND_SHIFTER");
257 }
258 }
259 if (hwreg_present(&st_mfp.par_dt_reg)) {
260 ATARIHW_SET(ST_MFP);
261 pr_cont(" ST_MFP");
262 }
263 if (hwreg_present(&tt_mfp.par_dt_reg)) {
264 ATARIHW_SET(TT_MFP);
265 pr_cont(" TT_MFP");
266 }
267 if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) {
268 ATARIHW_SET(SCSI_DMA);
269 pr_cont(" TT_SCSI_DMA");
270 }
271 /*
272 * The ST-DMA address registers aren't readable
273 * on all Medusas, so the test below may fail
274 */
275 if (MACH_IS_MEDUSA ||
276 (hwreg_present(&st_dma.dma_vhi) &&
277 (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) &&
278 st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa &&
279 (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) &&
280 st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) {
281 ATARIHW_SET(EXTD_DMA);
282 pr_cont(" EXTD_DMA");
283 }
284 if (hwreg_present(&tt_scsi.scsi_data)) {
285 ATARIHW_SET(TT_SCSI);
286 pr_cont(" TT_SCSI");
287 }
288 if (hwreg_present(&sound_ym.rd_data_reg_sel)) {
289 ATARIHW_SET(YM_2149);
290 pr_cont(" YM2149");
291 }
292 if (!MACH_IS_MEDUSA && hwreg_present(&tt_dmasnd.ctrl)) {
293 ATARIHW_SET(PCM_8BIT);
294 pr_cont(" PCM");
295 }
296 if (hwreg_present(&falcon_codec.unused5)) {
297 ATARIHW_SET(CODEC);
298 pr_cont(" CODEC");
299 }
300 if (hwreg_present(&dsp56k_host_interface.icr)) {
301 ATARIHW_SET(DSP56K);
302 pr_cont(" DSP56K");
303 }
304 if (hwreg_present(&tt_scc_dma.dma_ctrl) &&
305 #if 0
306 /* This test sucks! Who knows some better? */
307 (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) &&
308 (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0)
309 #else
310 !MACH_IS_MEDUSA
311 #endif
312 ) {
313 ATARIHW_SET(SCC_DMA);
314 pr_cont(" SCC_DMA");
315 }
316 if (scc_test(&atari_scc.cha_a_ctrl)) {
317 ATARIHW_SET(SCC);
318 pr_cont(" SCC");
319 }
320 if (scc_test(&st_escc.cha_b_ctrl)) {
321 ATARIHW_SET(ST_ESCC);
322 pr_cont(" ST_ESCC");
323 }
324 if (hwreg_present(&tt_scu.sys_mask)) {
325 ATARIHW_SET(SCU);
326 /* Assume a VME bus if there's a SCU */
327 ATARIHW_SET(VME);
328 pr_cont(" VME SCU");
329 }
330 if (hwreg_present((void *)(0xffff9210))) {
331 ATARIHW_SET(ANALOG_JOY);
332 pr_cont(" ANALOG_JOY");
333 }
334 if (hwreg_present(blitter.halftone)) {
335 ATARIHW_SET(BLITTER);
336 pr_cont(" BLITTER");
337 }
338 if (hwreg_present((void *)0xfff00039)) {
339 ATARIHW_SET(IDE);
340 pr_cont(" IDE");
341 }
342 #if 1 /* This maybe wrong */
343 if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
344 hwreg_present(&tt_microwire.mask) &&
345 (tt_microwire.mask = 0x7ff,
346 udelay(1),
347 tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
348 udelay(1),
349 tt_microwire.data != 0)) {
350 ATARIHW_SET(MICROWIRE);
351 while (tt_microwire.mask != 0x7ff)
352 ;
353 pr_cont(" MICROWIRE");
354 }
355 #endif
356 if (hwreg_present(&tt_rtc.regsel)) {
357 ATARIHW_SET(TT_CLK);
358 pr_cont(" TT_CLK");
359 mach_hwclk = atari_tt_hwclk;
360 }
361 if (hwreg_present(&mste_rtc.sec_ones)) {
362 ATARIHW_SET(MSTE_CLK);
363 pr_cont(" MSTE_CLK");
364 mach_hwclk = atari_mste_hwclk;
365 }
366 if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
367 hwreg_write(&dma_wd.fdc_speed, 0)) {
368 ATARIHW_SET(FDCSPEED);
369 pr_cont(" FDC_SPEED");
370 }
371 if (!ATARIHW_PRESENT(ST_SCSI)) {
372 ATARIHW_SET(ACSI);
373 pr_cont(" ACSI");
374 }
375 pr_cont("\n");
376
377 if (CPU_IS_040_OR_060)
378 /* Now it seems to be safe to turn of the tt0 transparent
379 * translation (the one that must not be turned off in
380 * head.S...)
381 */
382 asm volatile ("\n"
383 " moveq #0,%%d0\n"
384 " .chip 68040\n"
385 " movec %%d0,%%itt0\n"
386 " movec %%d0,%%dtt0\n"
387 " .chip 68k"
388 : /* no outputs */
389 : /* no inputs */
390 : "d0");
391
392 /* allocator for memory that must reside in st-ram */
393 atari_stram_init();
394
395 /* Set up a mapping for the VMEbus address region:
396 *
397 * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff
398 * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at
399 * 0xfe000000 virt., because this can be done with a single
400 * transparent translation. On the 68040, lots of often unused
401 * page tables would be needed otherwise. On a MegaSTE or similar,
402 * the highest byte is stripped off by hardware due to the 24 bit
403 * design of the bus.
404 */
405
406 if (CPU_IS_020_OR_030) {
407 unsigned long tt1_val;
408 tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache
409 * inhibit, read and write, FDC mask = 3,
410 * FDC val = 4 -> Supervisor only */
411 asm volatile ("\n"
412 " .chip 68030\n"
413 " pmove %0,%/tt1\n"
414 " .chip 68k"
415 : : "m" (tt1_val));
416 } else {
417 asm volatile ("\n"
418 " .chip 68040\n"
419 " movec %0,%%itt1\n"
420 " movec %0,%%dtt1\n"
421 " .chip 68k"
422 :
423 : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable,
424 * supervisor only, non-cacheable/
425 * serialized, writable */
426
427 }
428
429 /* Fetch tos version at Physical 2 */
430 /*
431 * We my not be able to access this address if the kernel is
432 * loaded to st ram, since the first page is unmapped. On the
433 * Medusa this is always the case and there is nothing we can do
434 * about this, so we just assume the smaller offset. For the TT
435 * we use the fact that in head.S we have set up a mapping
436 * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible
437 * in the last 16MB of the address space.
438 */
439 tos_version = (MACH_IS_MEDUSA) ?
440 0xfff : *(unsigned short *)0xff000002;
441 atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68;
442 }
443
444 #ifdef CONFIG_HEARTBEAT
445 static void atari_heartbeat(int on)
446 {
447 unsigned char tmp;
448 unsigned long flags;
449
450 if (atari_dont_touch_floppy_select)
451 return;
452
453 local_irq_save(flags);
454 sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */
455 tmp = sound_ym.rd_data_reg_sel;
456 sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02);
457 local_irq_restore(flags);
458 }
459 #endif
460
461 /* ++roman:
462 *
463 * This function does a reset on machines that lack the ability to
464 * assert the processor's _RESET signal somehow via hardware. It is
465 * based on the fact that you can find the initial SP and PC values
466 * after a reset at physical addresses 0 and 4. This works pretty well
467 * for Atari machines, since the lowest 8 bytes of physical memory are
468 * really ROM (mapped by hardware). For other 680x0 machines: don't
469 * know if it works...
470 *
471 * To get the values at addresses 0 and 4, the MMU better is turned
472 * off first. After that, we have to jump into physical address space
473 * (the PC before the pmove statement points to the virtual address of
474 * the code). Getting that physical address is not hard, but the code
475 * becomes a bit complex since I've tried to ensure that the jump
476 * statement after the pmove is in the cache already (otherwise the
477 * processor can't fetch it!). For that, the code first jumps to the
478 * jump statement with the (virtual) address of the pmove section in
479 * an address register . The jump statement is surely in the cache
480 * now. After that, that physical address of the reset code is loaded
481 * into the same address register, pmove is done and the same jump
482 * statements goes to the reset code. Since there are not many
483 * statements between the two jumps, I hope it stays in the cache.
484 *
485 * The C code makes heavy use of the GCC features that you can get the
486 * address of a C label. No hope to compile this with another compiler
487 * than GCC!
488 */
489
490 /* ++andreas: no need for complicated code, just depend on prefetch */
491
492 static void atari_reset(void)
493 {
494 long tc_val = 0;
495 long reset_addr;
496
497 /*
498 * On the Medusa, phys. 0x4 may contain garbage because it's no
499 * ROM. See above for explanation why we cannot use PTOV(4).
500 */
501 reset_addr = MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 :
502 *(unsigned long *) 0xff000004;
503
504 /* reset ACIA for switch off OverScan, if it's active */
505 if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
506 acia.key_ctrl = ACIA_RESET;
507 if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
508 acia.mid_ctrl = ACIA_RESET;
509
510 /* processor independent: turn off interrupts and reset the VBR;
511 * the caches must be left enabled, else prefetching the final jump
512 * instruction doesn't work.
513 */
514 local_irq_disable();
515 asm volatile ("movec %0,%%vbr"
516 : : "d" (0));
517
518 if (CPU_IS_040_OR_060) {
519 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
520 if (CPU_IS_060) {
521 /* 68060: clear PCR to turn off superscalar operation */
522 asm volatile ("\n"
523 " .chip 68060\n"
524 " movec %0,%%pcr\n"
525 " .chip 68k"
526 : : "d" (0));
527 }
528
529 asm volatile ("\n"
530 " move.l %0,%%d0\n"
531 " and.l #0xff000000,%%d0\n"
532 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */
533 " .chip 68040\n"
534 " movec %%d0,%%itt0\n"
535 " movec %%d0,%%dtt0\n"
536 " .chip 68k\n"
537 " jmp %0@"
538 : : "a" (jmp_addr040)
539 : "d0");
540 jmp_addr_label040:
541 asm volatile ("\n"
542 " moveq #0,%%d0\n"
543 " nop\n"
544 " .chip 68040\n"
545 " cinva %%bc\n"
546 " nop\n"
547 " pflusha\n"
548 " nop\n"
549 " movec %%d0,%%tc\n"
550 " nop\n"
551 /* the following setup of transparent translations is needed on the
552 * Afterburner040 to successfully reboot. Other machines shouldn't
553 * care about a different tt regs setup, they also didn't care in
554 * the past that the regs weren't turned off. */
555 " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */
556 " movec %%d0,%%itt0\n"
557 " movec %%d0,%%itt1\n"
558 " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */
559 " movec %%d0,%%dtt0\n"
560 " movec %%d0,%%dtt1\n"
561 " .chip 68k\n"
562 " jmp %0@"
563 : /* no outputs */
564 : "a" (reset_addr)
565 : "d0");
566 } else
567 asm volatile ("\n"
568 " pmove %0,%%tc\n"
569 " jmp %1@"
570 : /* no outputs */
571 : "m" (tc_val), "a" (reset_addr));
572 }
573
574
575 static void atari_get_model(char *model)
576 {
577 strcpy(model, "Atari ");
578 switch (atari_mch_cookie >> 16) {
579 case ATARI_MCH_ST:
580 if (ATARIHW_PRESENT(MSTE_CLK))
581 strcat(model, "Mega ST");
582 else
583 strcat(model, "ST");
584 break;
585 case ATARI_MCH_STE:
586 if (MACH_IS_MSTE)
587 strcat(model, "Mega STE");
588 else
589 strcat(model, "STE");
590 break;
591 case ATARI_MCH_TT:
592 if (MACH_IS_MEDUSA)
593 /* Medusa has TT _MCH cookie */
594 strcat(model, "Medusa");
595 else
596 strcat(model, "TT");
597 break;
598 case ATARI_MCH_FALCON:
599 strcat(model, "Falcon");
600 if (MACH_IS_AB40)
601 strcat(model, " (with Afterburner040)");
602 break;
603 default:
604 sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)",
605 atari_mch_cookie);
606 break;
607 }
608 }
609
610
611 static void atari_get_hardware_list(struct seq_file *m)
612 {
613 int i;
614
615 for (i = 0; i < m68k_num_memory; i++)
616 seq_printf(m, "\t%3ld MB at 0x%08lx (%s)\n",
617 m68k_memory[i].size >> 20, m68k_memory[i].addr,
618 (m68k_memory[i].addr & 0xff000000 ?
619 "alternate RAM" : "ST-RAM"));
620
621 #define ATARIHW_ANNOUNCE(name, str) \
622 if (ATARIHW_PRESENT(name)) \
623 seq_printf(m, "\t%s\n", str)
624
625 seq_puts(m, "Detected hardware:\n");
626 ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter");
627 ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter");
628 ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter");
629 ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter");
630 ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator");
631 ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound");
632 ATARIHW_ANNOUNCE(CODEC, "CODEC Sound");
633 ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)");
634 ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)");
635 ATARIHW_ANNOUNCE(ACSI, "ACSI Interface");
636 ATARIHW_ANNOUNCE(IDE, "IDE Interface");
637 ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC");
638 ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901");
639 ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901");
640 ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530");
641 ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230");
642 ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface");
643 ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface");
644 ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)");
645 ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)");
646 ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380");
647 ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC");
648 ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A");
649 ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15");
650 ATARIHW_ANNOUNCE(SCU, "System Control Unit");
651 ATARIHW_ANNOUNCE(BLITTER, "Blitter");
652 ATARIHW_ANNOUNCE(VME, "VME Bus");
653 ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor");
654 }
655
656 /*
657 * MSch: initial platform device support for Atari,
658 * required for EtherNAT/EtherNEC/NetUSBee drivers
659 */
660
661 #if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
662 static void isp1160_delay(struct device *dev, int delay)
663 {
664 ndelay(delay);
665 }
666 #endif
667
668 #ifdef CONFIG_ATARI_ETHERNAT
669 /*
670 * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
671 */
672
673 #define ATARI_ETHERNAT_IRQ 140
674
675 static struct resource smc91x_resources[] = {
676 [0] = {
677 .name = "smc91x-regs",
678 .start = ATARI_ETHERNAT_PHYS_ADDR,
679 .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff,
680 .flags = IORESOURCE_MEM,
681 },
682 [1] = {
683 .name = "smc91x-irq",
684 .start = ATARI_ETHERNAT_IRQ,
685 .end = ATARI_ETHERNAT_IRQ,
686 .flags = IORESOURCE_IRQ,
687 },
688 };
689
690 static struct platform_device smc91x_device = {
691 .name = "smc91x",
692 .id = -1,
693 .num_resources = ARRAY_SIZE(smc91x_resources),
694 .resource = smc91x_resources,
695 };
696
697 /*
698 * ISP 1160 - using the isp116x-hcd module
699 */
700
701 #define ATARI_USB_PHYS_ADDR 0x80000012
702 #define ATARI_USB_IRQ 139
703
704 static struct resource isp1160_resources[] = {
705 [0] = {
706 .name = "isp1160-data",
707 .start = ATARI_USB_PHYS_ADDR,
708 .end = ATARI_USB_PHYS_ADDR + 0x1,
709 .flags = IORESOURCE_MEM,
710 },
711 [1] = {
712 .name = "isp1160-regs",
713 .start = ATARI_USB_PHYS_ADDR + 0x4,
714 .end = ATARI_USB_PHYS_ADDR + 0x5,
715 .flags = IORESOURCE_MEM,
716 },
717 [2] = {
718 .name = "isp1160-irq",
719 .start = ATARI_USB_IRQ,
720 .end = ATARI_USB_IRQ,
721 .flags = IORESOURCE_IRQ,
722 },
723 };
724
725 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
726 static struct isp116x_platform_data isp1160_platform_data = {
727 /* Enable internal resistors on downstream ports */
728 .sel15Kres = 1,
729 /* On-chip overcurrent protection */
730 .oc_enable = 1,
731 /* INT output polarity */
732 .int_act_high = 1,
733 /* INT edge or level triggered */
734 .int_edge_triggered = 0,
735
736 /* WAKEUP pin connected - NOT SUPPORTED */
737 /* .remote_wakeup_connected = 0, */
738 /* Wakeup by devices on usb bus enabled */
739 .remote_wakeup_enable = 0,
740 .delay = isp1160_delay,
741 };
742
743 static struct platform_device isp1160_device = {
744 .name = "isp116x-hcd",
745 .id = 0,
746 .num_resources = ARRAY_SIZE(isp1160_resources),
747 .resource = isp1160_resources,
748 .dev = {
749 .platform_data = &isp1160_platform_data,
750 },
751 };
752
753 static struct platform_device *atari_ethernat_devices[] __initdata = {
754 &smc91x_device,
755 &isp1160_device
756 };
757 #endif /* CONFIG_ATARI_ETHERNAT */
758
759 #ifdef CONFIG_ATARI_ETHERNEC
760 /*
761 * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
762 * handled by ne.c driver
763 */
764
765 #define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000
766 #define ATARI_ETHERNEC_BASE 0x300
767 #define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1
768
769 static struct resource rtl8019_resources[] = {
770 [0] = {
771 .name = "rtl8019-regs",
772 .start = ATARI_ETHERNEC_BASE,
773 .end = ATARI_ETHERNEC_BASE + 0x20 - 1,
774 .flags = IORESOURCE_IO,
775 },
776 [1] = {
777 .name = "rtl8019-irq",
778 .start = ATARI_ETHERNEC_IRQ,
779 .end = ATARI_ETHERNEC_IRQ,
780 .flags = IORESOURCE_IRQ,
781 },
782 };
783
784 static struct platform_device rtl8019_device = {
785 .name = "ne",
786 .id = -1,
787 .num_resources = ARRAY_SIZE(rtl8019_resources),
788 .resource = rtl8019_resources,
789 };
790
791 /*
792 * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
793 */
794
795 #define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000
796 #define ATARI_NETUSBEE_BASE 0x340
797 #define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2
798
799 static struct resource netusbee_resources[] = {
800 [0] = {
801 .name = "isp1160-data",
802 .start = ATARI_NETUSBEE_BASE,
803 .end = ATARI_NETUSBEE_BASE + 0x1,
804 .flags = IORESOURCE_MEM,
805 },
806 [1] = {
807 .name = "isp1160-regs",
808 .start = ATARI_NETUSBEE_BASE + 0x20,
809 .end = ATARI_NETUSBEE_BASE + 0x21,
810 .flags = IORESOURCE_MEM,
811 },
812 [2] = {
813 .name = "isp1160-irq",
814 .start = ATARI_NETUSBEE_IRQ,
815 .end = ATARI_NETUSBEE_IRQ,
816 .flags = IORESOURCE_IRQ,
817 },
818 };
819
820 /* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
821 static struct isp116x_platform_data netusbee_platform_data = {
822 /* Enable internal resistors on downstream ports */
823 .sel15Kres = 1,
824 /* On-chip overcurrent protection */
825 .oc_enable = 1,
826 /* INT output polarity */
827 .int_act_high = 1,
828 /* INT edge or level triggered */
829 .int_edge_triggered = 0,
830
831 /* WAKEUP pin connected - NOT SUPPORTED */
832 /* .remote_wakeup_connected = 0, */
833 /* Wakeup by devices on usb bus enabled */
834 .remote_wakeup_enable = 0,
835 .delay = isp1160_delay,
836 };
837
838 static struct platform_device netusbee_device = {
839 .name = "isp116x-hcd",
840 .id = 1,
841 .num_resources = ARRAY_SIZE(netusbee_resources),
842 .resource = netusbee_resources,
843 .dev = {
844 .platform_data = &netusbee_platform_data,
845 },
846 };
847
848 static struct platform_device *atari_netusbee_devices[] __initdata = {
849 &rtl8019_device,
850 &netusbee_device
851 };
852 #endif /* CONFIG_ATARI_ETHERNEC */
853
854 #if IS_ENABLED(CONFIG_ATARI_SCSI)
855 static const struct resource atari_scsi_st_rsrc[] __initconst = {
856 {
857 .flags = IORESOURCE_IRQ,
858 .start = IRQ_MFP_FSCSI,
859 .end = IRQ_MFP_FSCSI,
860 },
861 };
862
863 static const struct resource atari_scsi_tt_rsrc[] __initconst = {
864 {
865 .flags = IORESOURCE_IRQ,
866 .start = IRQ_TT_MFP_SCSI,
867 .end = IRQ_TT_MFP_SCSI,
868 },
869 };
870 #endif
871
872 /*
873 * Falcon IDE interface
874 */
875
876 #define FALCON_IDE_BASE 0xfff00000
877
878 static const struct resource atari_falconide_rsrc[] __initconst = {
879 {
880 .flags = IORESOURCE_MEM,
881 .start = FALCON_IDE_BASE,
882 .end = FALCON_IDE_BASE + 0x39,
883 },
884 {
885 .flags = IORESOURCE_IRQ,
886 .start = IRQ_MFP_FSCSI,
887 .end = IRQ_MFP_FSCSI,
888 },
889 };
890
891 int __init atari_platform_init(void)
892 {
893 struct platform_device *pdev;
894 int rv = 0;
895
896 if (!MACH_IS_ATARI)
897 return -ENODEV;
898
899 #ifdef CONFIG_ATARI_ETHERNAT
900 {
901 unsigned char *enatc_virt;
902 enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
903 if (hwreg_present(enatc_virt)) {
904 rv = platform_add_devices(atari_ethernat_devices,
905 ARRAY_SIZE(atari_ethernat_devices));
906 }
907 iounmap(enatc_virt);
908 }
909 #endif
910
911 #ifdef CONFIG_ATARI_ETHERNEC
912 {
913 int error;
914 unsigned char *enec_virt;
915 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
916 if (hwreg_present(enec_virt)) {
917 error = platform_add_devices(atari_netusbee_devices,
918 ARRAY_SIZE(atari_netusbee_devices));
919 if (error && !rv)
920 rv = error;
921 }
922 iounmap(enec_virt);
923 }
924 #endif
925
926 #if IS_ENABLED(CONFIG_ATARI_SCSI)
927 if (ATARIHW_PRESENT(ST_SCSI))
928 platform_device_register_simple("atari_scsi", -1,
929 atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
930 else if (ATARIHW_PRESENT(TT_SCSI))
931 platform_device_register_simple("atari_scsi", -1,
932 atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
933 #endif
934
935 if (ATARIHW_PRESENT(IDE)) {
936 pdev = platform_device_register_simple("atari-falcon-ide", -1,
937 atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc));
938 if (IS_ERR(pdev))
939 rv = PTR_ERR(pdev);
940 }
941
942 return rv;
943 }
944
945 arch_initcall(atari_platform_init);
Linux with added FPC-III support