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
 51u_long atari_mch_cookie;
 52EXPORT_SYMBOL(atari_mch_cookie);
 53
 54u_long atari_mch_type;
 55EXPORT_SYMBOL(atari_mch_type);
 56
 57struct atari_hw_present atari_hw_present;
 58EXPORT_SYMBOL(atari_hw_present);
 59
 60u_long atari_switches;
 61EXPORT_SYMBOL(atari_switches);
 62
 63int atari_dont_touch_floppy_select;
 64EXPORT_SYMBOL(atari_dont_touch_floppy_select);
 65
 66int atari_rtc_year_offset;
 67
 68/* local function prototypes */
 69static void atari_reset(void);
 70static void atari_get_model(char *model);
 71static void atari_get_hardware_list(struct seq_file *m);
 72
 73/* atari specific irq functions */
 74extern void atari_init_IRQ (void);
 75extern void atari_mksound(unsigned int count, unsigned int ticks);
 76#ifdef CONFIG_HEARTBEAT
 77static void atari_heartbeat(int on);
 78#endif
 79
 80/* atari specific timer functions (in time.c) */
 81extern void atari_sched_init(void);
 82extern int atari_mste_hwclk (int, struct rtc_time *);
 83extern int atari_tt_hwclk (int, struct rtc_time *);
 84
 85/* ++roman: This is a more elaborate test for an SCC chip, since the plain
 86 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
 87 * board in the Medusa is possible. Also, the addresses where the ST_ESCC
 88 * resides generate DTACK without the chip, too.
 89 * The method is to write values into the interrupt vector register, that
 90 * should be readable without trouble (from channel A!).
 91 */
 92
 93static int __init scc_test(volatile char *ctla)
 94{
 95	if (!hwreg_present(ctla))
 96		return 0;
 97	MFPDELAY();
 98
 99	*ctla = 2;
100	MFPDELAY();
101	*ctla = 0x40;
102	MFPDELAY();
103
104	*ctla = 2;
105	MFPDELAY();
106	if (*ctla != 0x40)
107		return 0;
108	MFPDELAY();
109
110	*ctla = 2;
111	MFPDELAY();
112	*ctla = 0x60;
113	MFPDELAY();
114
115	*ctla = 2;
116	MFPDELAY();
117	if (*ctla != 0x60)
118		return 0;
119
120	return 1;
121}
122
123
124    /*
125     *  Parse an Atari-specific record in the bootinfo
126     */
127
128int __init atari_parse_bootinfo(const struct bi_record *record)
129{
130	int unknown = 0;
131	const void *data = record->data;
132
133	switch (be16_to_cpu(record->tag)) {
134	case BI_ATARI_MCH_COOKIE:
135		atari_mch_cookie = be32_to_cpup(data);
136		break;
137	case BI_ATARI_MCH_TYPE:
138		atari_mch_type = be32_to_cpup(data);
139		break;
140	default:
141		unknown = 1;
142		break;
143	}
144	return unknown;
145}
146
147
148/* Parse the Atari-specific switches= option. */
149static int __init atari_switches_setup(char *str)
150{
151	char switches[COMMAND_LINE_SIZE];
152	char *p;
153	int ovsc_shift;
154	char *args = switches;
155
156	if (!MACH_IS_ATARI)
157		return 0;
158
159	/* copy string to local array, strsep works destructively... */
160	strcpy(switches, str);
161	atari_switches = 0;
162
163	/* parse the options */
164	while ((p = strsep(&args, ",")) != NULL) {
165		if (!*p)
166			continue;
167		ovsc_shift = 0;
168		if (strncmp(p, "ov_", 3) == 0) {
169			p += 3;
170			ovsc_shift = ATARI_SWITCH_OVSC_SHIFT;
171		}
172
173		if (strcmp(p, "ikbd") == 0) {
174			/* RTS line of IKBD ACIA */
175			atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift;
176		} else if (strcmp(p, "midi") == 0) {
177			/* RTS line of MIDI ACIA */
178			atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift;
179		} else if (strcmp(p, "snd6") == 0) {
180			atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift;
181		} else if (strcmp(p, "snd7") == 0) {
182			atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift;
183		}
184	}
185	return 0;
186}
187
188early_param("switches", atari_switches_setup);
189
190
191    /*
192     *  Setup the Atari configuration info
193     */
194
195void __init config_atari(void)
196{
197	unsigned short tos_version;
198
199	memset(&atari_hw_present, 0, sizeof(atari_hw_present));
200
201	/* Change size of I/O space from 64KB to 4GB. */
202	ioport_resource.end  = 0xFFFFFFFF;
203
204	mach_sched_init      = atari_sched_init;
205	mach_init_IRQ        = atari_init_IRQ;
206	mach_get_model	 = atari_get_model;
207	mach_get_hardware_list = atari_get_hardware_list;
208	mach_reset           = atari_reset;
 
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
445static 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
492static 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
575static 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
611static 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)
662static 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
675static 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
690static 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
704static 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 ) */
726static 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
743static 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
753static 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
769static 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
784static 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
799static 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 ) */
821static 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
838static 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
848static 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)
855static 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
863static 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
878static const struct resource atari_falconide_rsrc[] __initconst = {
879	DEFINE_RES_MEM(FALCON_IDE_BASE, 0x38),
880	DEFINE_RES_MEM(FALCON_IDE_BASE + 0x38, 2),
881};
882
883int __init atari_platform_init(void)
884{
885	struct platform_device *pdev;
886	int rv = 0;
887
888	if (!MACH_IS_ATARI)
889		return -ENODEV;
890
891#ifdef CONFIG_ATARI_ETHERNAT
892	{
893		unsigned char *enatc_virt;
894		enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf);
895		if (hwreg_present(enatc_virt)) {
896			rv = platform_add_devices(atari_ethernat_devices,
897						ARRAY_SIZE(atari_ethernat_devices));
898		}
899		iounmap(enatc_virt);
900	}
901#endif
902
903#ifdef CONFIG_ATARI_ETHERNEC
904	{
905		int error;
906		unsigned char *enec_virt;
907		enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
908		if (hwreg_present(enec_virt)) {
909			error = platform_add_devices(atari_netusbee_devices,
910						ARRAY_SIZE(atari_netusbee_devices));
911			if (error && !rv)
912				rv = error;
913		}
914		iounmap(enec_virt);
915	}
916#endif
917
918#if IS_ENABLED(CONFIG_ATARI_SCSI)
919	if (ATARIHW_PRESENT(ST_SCSI))
920		platform_device_register_simple("atari_scsi", -1,
921			atari_scsi_st_rsrc, ARRAY_SIZE(atari_scsi_st_rsrc));
922	else if (ATARIHW_PRESENT(TT_SCSI))
923		platform_device_register_simple("atari_scsi", -1,
924			atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
925#endif
926
927	if (ATARIHW_PRESENT(IDE)) {
928		pdev = platform_device_register_simple("atari-falcon-ide", -1,
929			atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc));
930		if (IS_ERR(pdev))
931			rv = PTR_ERR(pdev);
932	}
933
934	return rv;
935}
936
937arch_initcall(atari_platform_init);