aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/serial/sh-sci.h
blob: eb7ef4951e07b8f5676887600ba2e88faaa0d2b3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
#include <linux/serial_core.h>
#include <linux/io.h>
#include <linux/gpio.h>

#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
#include <asm/regs306x.h>
#endif
#if defined(CONFIG_H8S2678)
#include <asm/regs267x.h>
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
    defined(CONFIG_CPU_SUBTYPE_SH7708) || \
    defined(CONFIG_CPU_SUBTYPE_SH7709)
# define SCPCR  0xA4000116 /* 16 bit SCI and SCIF */
# define SCPDR  0xA4000136 /* 8  bit SCI and SCIF */
# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
# define SCIF0		0xA4400000
# define SCIF2		0xA4410000
# define SCSMR_Ir	0xA44A0000
# define IRDA_SCIF	SCIF0
# define SCPCR 0xA4000116
# define SCPDR 0xA4000136

/* Set the clock source,
 * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input
 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output
 */
# define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
      defined(CONFIG_CPU_SUBTYPE_SH7721) || \
      defined(CONFIG_ARCH_SH7367) || \
      defined(CONFIG_ARCH_SH7377) || \
      defined(CONFIG_ARCH_SH7372)
# define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
# define PORT_PTCR	   0xA405011EUL
# define PORT_PVCR	   0xA4050122UL
# define SCIF_ORER	   0x0200   /* overrun error bit */
#elif defined(CONFIG_SH_RTS7751R2D)
# define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001   /* overrun error bit */
# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7750)  || \
      defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
      defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
      defined(CONFIG_CPU_SUBTYPE_SH7091)  || \
      defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
      defined(CONFIG_CPU_SUBTYPE_SH7751R)
# define SCSPTR1 0xffe0001c /* 8  bit SCI */
# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001   /* overrun error bit */
# define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
	0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
# define SCSPTR0 0xfe600024 /* 16 bit SCIF */
# define SCSPTR1 0xfe610024 /* 16 bit SCIF */
# define SCSPTR2 0xfe620024 /* 16 bit SCIF */
# define SCIF_ORER 0x0001  /* overrun error bit */
# define SCSCR_INIT(port)          0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
# define SCSPTR0 0xA4400000	  /* 16 bit SCIF */
# define SCIF_ORER 0x0001   /* overrun error bit */
# define PACR 0xa4050100
# define PBCR 0xa4050102
# define SCSCR_INIT(port)          0x3B
#elif defined(CONFIG_CPU_SUBTYPE_SH7343)
# define SCSPTR0 0xffe00010	/* 16 bit SCIF */
# define SCSPTR1 0xffe10010	/* 16 bit SCIF */
# define SCSPTR2 0xffe20010	/* 16 bit SCIF */
# define SCSPTR3 0xffe30010	/* 16 bit SCIF */
# define SCSCR_INIT(port) 0x32	/* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
# define PADR			0xA4050120
# define PSDR			0xA405013e
# define PWDR			0xA4050166
# define PSCR			0xA405011E
# define SCIF_ORER		0x0001	/* overrun error bit */
# define SCSCR_INIT(port)	0x0038	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7366)
# define SCPDR0			0xA405013E      /* 16 bit SCIF0 PSDR */
# define SCSPTR0		SCPDR0
# define SCIF_ORER		0x0001  /* overrun error bit */
# define SCSCR_INIT(port)	0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
# define SCSPTR0                0xa4050160
# define SCSPTR1                0xa405013e
# define SCSPTR2                0xa4050160
# define SCSPTR3                0xa405013e
# define SCSPTR4                0xa4050128
# define SCSPTR5                0xa4050128
# define SCIF_ORER              0x0001  /* overrun error bit */
# define SCSCR_INIT(port)       0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
# define SCIF_ORER              0x0001  /* overrun error bit */
# define SCSCR_INIT(port) ((port)->type == PORT_SCIFA ? \
	0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001   /* overrun error bit */
# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
# define SCIF_BASE_ADDR    0x01030000
# define SCIF_ADDR_SH5     PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
# define SCIF_PTR2_OFFS    0x0000020
# define SCIF_LSR2_OFFS    0x0000024
# define SCSPTR2           ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */
# define SCLSR2            ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */
# define SCSCR_INIT(port)  0x38		/* TIE=0,RIE=0, TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
#elif defined(CONFIG_H8S2678)
# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
# define SCSPTR0 0xfe4b0020
# define SCSPTR1 0xfe4b0020
# define SCSPTR2 0xfe4b0020
# define SCIF_ORER 0x0001
# define SCSCR_INIT(port)	0x38
# define SCIF_ONLY
#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
# define SCSPTR0 0xffe00024 /* 16 bit SCIF */
# define SCSPTR1 0xffe08024 /* 16 bit SCIF */
# define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */
# define SCIF_ORER 0x0001  /* overrun error bit */
# define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7770)
# define SCSPTR0 0xff923020 /* 16 bit SCIF */
# define SCSPTR1 0xff924020 /* 16 bit SCIF */
# define SCSPTR2 0xff925020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001  /* overrun error bit */
# define SCSCR_INIT(port)	0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
# define SCSPTR0	0xffe00024	/* 16 bit SCIF */
# define SCSPTR1	0xffe10024	/* 16 bit SCIF */
# define SCIF_ORER	0x0001		/* Overrun error bit */

#if defined(CONFIG_SH_SH2007)
/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=0 */
# define SCSCR_INIT(port)	0x38
#else
/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=1 */
# define SCSCR_INIT(port)	0x3a
#endif

#elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
      defined(CONFIG_CPU_SUBTYPE_SH7786)
# define SCSPTR0	0xffea0024	/* 16 bit SCIF */
# define SCSPTR1	0xffeb0024	/* 16 bit SCIF */
# define SCSPTR2	0xffec0024	/* 16 bit SCIF */
# define SCSPTR3	0xffed0024	/* 16 bit SCIF */
# define SCSPTR4	0xffee0024	/* 16 bit SCIF */
# define SCSPTR5	0xffef0024	/* 16 bit SCIF */
# define SCIF_ORER	0x0001		/* Overrun error bit */
# define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
      defined(CONFIG_CPU_SUBTYPE_SH7203) || \
      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
      defined(CONFIG_CPU_SUBTYPE_SH7263)
# define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
# define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
# define SCSPTR2 0xfffe9020 /* 16 bit SCIF */
# define SCSPTR3 0xfffe9820 /* 16 bit SCIF */
# if defined(CONFIG_CPU_SUBTYPE_SH7201)
#  define SCSPTR4 0xfffeA020 /* 16 bit SCIF */
#  define SCSPTR5 0xfffeA820 /* 16 bit SCIF */
#  define SCSPTR6 0xfffeB020 /* 16 bit SCIF */
#  define SCSPTR7 0xfffeB820 /* 16 bit SCIF */
# endif
# define SCSCR_INIT(port)	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
# define SCSPTR0 0xf8400020 /* 16 bit SCIF */
# define SCSPTR1 0xf8410020 /* 16 bit SCIF */
# define SCSPTR2 0xf8420020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001  /* overrun error bit */
# define SCSCR_INIT(port)	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
# define SCSPTR0 0xffc30020		/* 16 bit SCIF */
# define SCSPTR1 0xffc40020		/* 16 bit SCIF */
# define SCSPTR2 0xffc50020		/* 16 bit SCIF */
# define SCSPTR3 0xffc60020		/* 16 bit SCIF */
# define SCIF_ORER 0x0001		/* Overrun error bit */
# define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#else
# error CPU subtype not defined
#endif

/* SCSCR */
#define SCI_CTRL_FLAGS_TIE  0x80 /* all */
#define SCI_CTRL_FLAGS_RIE  0x40 /* all */
#define SCI_CTRL_FLAGS_TE   0x20 /* all */
#define SCI_CTRL_FLAGS_RE   0x10 /* all */
#if defined(CONFIG_CPU_SUBTYPE_SH7750)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7091)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
    defined(CONFIG_CPU_SUBTYPE_SH7722)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
    defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
    defined(CONFIG_CPU_SUBTYPE_SH7763)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7780)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7785)  || \
    defined(CONFIG_CPU_SUBTYPE_SH7786)  || \
    defined(CONFIG_CPU_SUBTYPE_SHX3)
#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
#define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8)
#else
#define SCI_CTRL_FLAGS_REIE 0
#endif
/*      SCI_CTRL_FLAGS_MPIE 0x08  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
/*      SCI_CTRL_FLAGS_TEIE 0x04  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
/*      SCI_CTRL_FLAGS_CKE1 0x02  * all */
/*      SCI_CTRL_FLAGS_CKE0 0x01  * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */

/* SCxSR SCI */
#define SCI_TDRE  0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
#define SCI_RDRF  0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
#define SCI_ORER  0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
#define SCI_FER   0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
#define SCI_PER   0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
#define SCI_TEND  0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
/*      SCI_MPB   0x02  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
/*      SCI_MPBT  0x01  * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */

#define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)

/* SCxSR SCIF */
#define SCIF_ER    0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_TEND  0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_TDFE  0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_BRK   0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_FER   0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_PER   0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_RDF   0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
#define SCIF_DR    0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */

#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
    defined(CONFIG_ARCH_SH7367) || \
    defined(CONFIG_ARCH_SH7377) || \
    defined(CONFIG_ARCH_SH7372)
# define SCIF_ORER    0x0200
# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
# define SCIF_RFDC_MASK 0x007f
# define SCIF_TXROOM_MAX 64
#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK )
# define SCIF_RFDC_MASK 0x007f
# define SCIF_TXROOM_MAX 64
/* SH7763 SCIF2 support */
# define SCIF2_RFDC_MASK 0x001f
# define SCIF2_TXROOM_MAX 16
#else
# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
# define SCIF_RFDC_MASK 0x001f
# define SCIF_TXROOM_MAX 16
#endif

#ifndef SCIF_ORER
#define SCIF_ORER	0x0000
#endif

#define SCxSR_TEND(port)	(((port)->type == PORT_SCI) ? SCI_TEND   : SCIF_TEND)
#define SCxSR_ERRORS(port)	(((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
#define SCxSR_RDxF(port)	(((port)->type == PORT_SCI) ? SCI_RDRF   : SCIF_RDF)
#define SCxSR_TDxE(port)	(((port)->type == PORT_SCI) ? SCI_TDRE   : SCIF_TDFE)
#define SCxSR_FER(port)		(((port)->type == PORT_SCI) ? SCI_FER    : SCIF_FER)
#define SCxSR_PER(port)		(((port)->type == PORT_SCI) ? SCI_PER    : SCIF_PER)
#define SCxSR_BRK(port)		(((port)->type == PORT_SCI) ? 0x00       : SCIF_BRK)
#define SCxSR_ORER(port)	(((port)->type == PORT_SCI) ? SCI_ORER	 : SCIF_ORER)

#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
    defined(CONFIG_ARCH_SH7367) || \
    defined(CONFIG_ARCH_SH7377) || \
    defined(CONFIG_ARCH_SH7372)
# define SCxSR_RDxF_CLEAR(port)	 (sci_in(port, SCxSR) & 0xfffc)
# define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73)
# define SCxSR_TDxE_CLEAR(port)	 (sci_in(port, SCxSR) & 0xffdf)
# define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3)
#else
# define SCxSR_RDxF_CLEAR(port)	 (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
# define SCxSR_TDxE_CLEAR(port)  (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
# define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
#endif

/* SCFCR */
#define SCFCR_RFRST 0x0002
#define SCFCR_TFRST 0x0004
#define SCFCR_TCRST 0x4000
#define SCFCR_MCE   0x0008

#define SCI_MAJOR		204
#define SCI_MINOR_START		8

/* Generic serial flags */
#define SCI_RX_THROTTLE		0x0000001

#define SCI_MAGIC 0xbabeface

/*
 * Events are used to schedule things to happen at timer-interrupt
 * time, instead of at rs interrupt time.
 */
#define SCI_EVENT_WRITE_WAKEUP	0

#define SCI_IN(size, offset)					\
  if ((size) == 8) {						\
    return ioread8(port->membase + (offset));			\
  } else {							\
    return ioread16(port->membase + (offset));			\
  }
#define SCI_OUT(size, offset, value)				\
  if ((size) == 8) {						\
    iowrite8(value, port->membase + (offset));			\
  } else if ((size) == 16) {					\
    iowrite16(value, port->membase + (offset));			\
  }

#define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
  {									\
    if (port->type == PORT_SCIF) {					\
      SCI_IN(scif_size, scif_offset)					\
    } else {	/* PORT_SCI or PORT_SCIFA */				\
      SCI_IN(sci_size, sci_offset);					\
    }									\
  }									\
  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
  {									\
    if (port->type == PORT_SCIF) {					\
      SCI_OUT(scif_size, scif_offset, value)				\
    } else {	/* PORT_SCI or PORT_SCIFA */				\
      SCI_OUT(sci_size, sci_offset, value);				\
    }									\
  }

#ifdef CONFIG_H8300
/* h8300 don't have SCIF */
#define CPU_SCIF_FNS(name)						\
  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
  {									\
    return 0;								\
  }									\
  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
  {									\
  }
#else
#define CPU_SCIF_FNS(name, scif_offset, scif_size)			\
  static inline unsigned int sci_##name##_in(struct uart_port *port)	\
  {									\
    SCI_IN(scif_size, scif_offset);					\
  }									\
  static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
  {									\
    SCI_OUT(scif_size, scif_offset, value);				\
  }
#endif

#define CPU_SCI_FNS(name, sci_offset, sci_size)				\
  static inline unsigned int sci_##name##_in(struct uart_port* port)	\
  {									\
    SCI_IN(sci_size, sci_offset);					\
  }									\
  static inline void sci_##name##_out(struct uart_port* port, unsigned int value) \
  {									\
    SCI_OUT(sci_size, sci_offset, value);				\
  }

#if defined(CONFIG_CPU_SH3) || \
    defined(CONFIG_ARCH_SH7367) || \
    defined(CONFIG_ARCH_SH7377) || \
    defined(CONFIG_ARCH_SH7372)
#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
		                sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
		                 h8_sci_offset, h8_sci_size) \
  CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
	  CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
      defined(CONFIG_CPU_SUBTYPE_SH7721) || \
      defined(CONFIG_ARCH_SH7367) || \
      defined(CONFIG_ARCH_SH7377) || \
      defined(CONFIG_ARCH_SH7372)
#define SCIF_FNS(name, scif_offset, scif_size) \
  CPU_SCIF_FNS(name, scif_offset, scif_size)
#else
#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
                 h8_sci_offset, h8_sci_size) \
  CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
  CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
#endif
#elif defined(__H8300H__) || defined(__H8300S__)
#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
                 h8_sci_offset, h8_sci_size) \
  CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
  CPU_SCIF_FNS(name)
#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
      defined(CONFIG_CPU_SUBTYPE_SH7724)
        #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \
                CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size)
        #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \
                CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#else
#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
		 sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
		 h8_sci_offset, h8_sci_size) \
  CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
  CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
    defined(CONFIG_ARCH_SH7367) || \
    defined(CONFIG_ARCH_SH7377) || \
    defined(CONFIG_ARCH_SH7372)

SCIF_FNS(SCSMR,  0x00, 16)
SCIF_FNS(SCBRR,  0x04,  8)
SCIF_FNS(SCSCR,  0x08, 16)
SCIF_FNS(SCTDSR, 0x0c,  8)
SCIF_FNS(SCFER,  0x10, 16)
SCIF_FNS(SCxSR,  0x14, 16)
SCIF_FNS(SCFCR,  0x18, 16)
SCIF_FNS(SCFDR,  0x1c, 16)
SCIF_FNS(SCxTDR, 0x20,  8)
SCIF_FNS(SCxRDR, 0x24,  8)
SCIF_FNS(SCLSR,  0x00,  0)
#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
      defined(CONFIG_CPU_SUBTYPE_SH7724)
SCIx_FNS(SCSMR,  0x00, 16, 0x00, 16)
SCIx_FNS(SCBRR,  0x04,  8, 0x04,  8)
SCIx_FNS(SCSCR,  0x08, 16, 0x08, 16)
SCIx_FNS(SCxTDR, 0x20,  8, 0x0c,  8)
SCIx_FNS(SCxSR,  0x14, 16, 0x10, 16)
SCIx_FNS(SCxRDR, 0x24,  8, 0x14,  8)
SCIx_FNS(SCSPTR, 0,     0,    0,  0)
SCIF_FNS(SCTDSR, 0x0c,  8)
SCIF_FNS(SCFER,  0x10, 16)
SCIF_FNS(SCFCR,  0x18, 16)
SCIF_FNS(SCFDR,  0x1c, 16)
SCIF_FNS(SCLSR,  0x24, 16)
#else
/*      reg      SCI/SH3   SCI/SH4  SCIF/SH3   SCIF/SH4  SCI/H8*/
/*      name     off  sz   off  sz   off  sz   off  sz   off  sz*/
SCIx_FNS(SCSMR,  0x00,  8, 0x00,  8, 0x00,  8, 0x00, 16, 0x00,  8)
SCIx_FNS(SCBRR,  0x02,  8, 0x04,  8, 0x02,  8, 0x04,  8, 0x01,  8)
SCIx_FNS(SCSCR,  0x04,  8, 0x08,  8, 0x04,  8, 0x08, 16, 0x02,  8)
SCIx_FNS(SCxTDR, 0x06,  8, 0x0c,  8, 0x06,  8, 0x0C,  8, 0x03,  8)
SCIx_FNS(SCxSR,  0x08,  8, 0x10,  8, 0x08, 16, 0x10, 16, 0x04,  8)
SCIx_FNS(SCxRDR, 0x0a,  8, 0x14,  8, 0x0A,  8, 0x14,  8, 0x05,  8)
SCIF_FNS(SCFCR,                      0x0c,  8, 0x18, 16)
#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
    defined(CONFIG_CPU_SUBTYPE_SH7786)
SCIF_FNS(SCFDR,			     0x0e, 16, 0x1C, 16)
SCIF_FNS(SCTFDR,		     0x0e, 16, 0x1C, 16)
SCIF_FNS(SCRFDR,		     0x0e, 16, 0x20, 16)
SCIF_FNS(SCSPTR,			0,  0, 0x24, 16)
SCIF_FNS(SCLSR,				0,  0, 0x28, 16)
#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
SCIF_FNS(SCFDR,				0,  0, 0x1C, 16)
SCIF_FNS(SCSPTR2,			0,  0, 0x20, 16)
SCIF_FNS(SCLSR2,			0,  0, 0x24, 16)
SCIF_FNS(SCTFDR,		     0x0e, 16, 0x1C, 16)
SCIF_FNS(SCRFDR,		     0x0e, 16, 0x20, 16)
SCIF_FNS(SCSPTR,			0,  0, 0x24, 16)
SCIF_FNS(SCLSR,				0,  0, 0x28, 16)
#else
SCIF_FNS(SCFDR,                      0x0e, 16, 0x1C, 16)
#if defined(CONFIG_CPU_SUBTYPE_SH7722)
SCIF_FNS(SCSPTR,                        0,  0, 0, 0)
#else
SCIF_FNS(SCSPTR,                        0,  0, 0x20, 16)
#endif
SCIF_FNS(SCLSR,                         0,  0, 0x24, 16)
#endif
#endif
#define sci_in(port, reg) sci_##reg##_in(port)
#define sci_out(port, reg, value) sci_##reg##_out(port, value)

/* H8/300 series SCI pins assignment */
#if defined(__H8300H__) || defined(__H8300S__)
static const struct __attribute__((packed)) {
	int port;             /* GPIO port no */
	unsigned short rx,tx; /* GPIO bit no */
} h8300_sci_pins[] = {
#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
	{    /* SCI0 */
		.port = H8300_GPIO_P9,
		.rx   = H8300_GPIO_B2,
		.tx   = H8300_GPIO_B0,
	},
	{    /* SCI1 */
		.port = H8300_GPIO_P9,
		.rx   = H8300_GPIO_B3,
		.tx   = H8300_GPIO_B1,
	},
	{    /* SCI2 */
		.port = H8300_GPIO_PB,
		.rx   = H8300_GPIO_B7,
		.tx   = H8300_GPIO_B6,
	}
#elif defined(CONFIG_H8S2678)
	{    /* SCI0 */
		.port = H8300_GPIO_P3,
		.rx   = H8300_GPIO_B2,
		.tx   = H8300_GPIO_B0,
	},
	{    /* SCI1 */
		.port = H8300_GPIO_P3,
		.rx   = H8300_GPIO_B3,
		.tx   = H8300_GPIO_B1,
	},
	{    /* SCI2 */
		.port = H8300_GPIO_P5,
		.rx   = H8300_GPIO_B1,
		.tx   = H8300_GPIO_B0,
	}
#endif
};
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
    defined(CONFIG_CPU_SUBTYPE_SH7708) || \
    defined(CONFIG_CPU_SUBTYPE_SH7709)
static inline int sci_rxd_in(struct uart_port *port)
{
	if (port->mapbase == 0xfffffe80)
		return __raw_readb(SCPDR)&0x01 ? 1 : 0; /* SCI */
	return 1;
}
#elif defined(CONFIG_CPU_SUBTYPE_SH7750)  || \
      defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
      defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
      defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
      defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
      defined(CONFIG_CPU_SUBTYPE_SH7091)
static inline int sci_rxd_in(struct uart_port *port)
{
	if (port->mapbase == 0xffe00000)
		return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
	return 1;
}
#elif defined(__H8300H__) || defined(__H8300S__)
static inline int sci_rxd_in(struct uart_port *port)
{
	int ch = (port->mapbase - SMR0) >> 3;
	return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
}
#else /* default case for non-SCI processors */
static inline int sci_rxd_in(struct uart_port *port)
{
	return 1;
}
#endif

/*
 * Values for the BitRate Register (SCBRR)
 *
 * The values are actually divisors for a frequency which can
 * be internal to the SH3 (14.7456MHz) or derived from an external
 * clock source.  This driver assumes the internal clock is used;
 * to support using an external clock source, config options or
 * possibly command-line options would need to be added.
 *
 * Also, to support speeds below 2400 (why?) the lower 2 bits of
 * the SCSMR register would also need to be set to non-zero values.
 *
 * -- Greg Banks 27Feb2000
 *
 * Answer: The SCBRR register is only eight bits, and the value in
 * it gets larger with lower baud rates. At around 2400 (depending on
 * the peripherial module clock) you run out of bits. However the
 * lower two bits of SCSMR allow the module clock to be divided down,
 * scaling the value which is needed in SCBRR.
 *
 * -- Stuart Menefy - 23 May 2000
 *
 * I meant, why would anyone bother with bitrates below 2400.
 *
 * -- Greg Banks - 7Jul2000
 *
 * You "speedist"!  How will I use my 110bps ASR-33 teletype with paper
 * tape reader as a console!
 *
 * -- Mitch Davis - 15 Jul 2000
 */

#if (defined(CONFIG_CPU_SUBTYPE_SH7780)  || \
     defined(CONFIG_CPU_SUBTYPE_SH7785)  || \
     defined(CONFIG_CPU_SUBTYPE_SH7786)) && \
    !defined(CONFIG_SH_SH2007)
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
      defined(CONFIG_CPU_SUBTYPE_SH7721) || \
      defined(CONFIG_ARCH_SH7367) || \
      defined(CONFIG_ARCH_SH7377) || \
      defined(CONFIG_ARCH_SH7372)
#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
      defined(CONFIG_CPU_SUBTYPE_SH7724)
static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
{
	if (port->type == PORT_SCIF)
		return (clk+16*bps)/(32*bps)-1;
	else
		return ((clk*2)+16*bps)/(16*bps)-1;
}
#define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
#elif defined(__H8300H__) || defined(__H8300S__)
#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
#else /* Generic SH */
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
#endif