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
637
638
639
|
#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config LOWLEVEL_CONSOLE
bool "Low-level console support"
default n
depends on ARCH_LOWPUTC
config 16550_UART
bool "16550 UART Chip support"
default n
if 16550_UART
config 16550_UART0
bool "16550 UART0"
default n
if 16550_UART0
config 16550_UART0_BASE
hex "16550 UART0 base address"
config 16550_UART0_CLOCK
int "16550 UART0 clock"
config 16550_UART0_IRQ
int "16550 UART0 IRQ number"
config 16550_UART0_BAUD
int "16550 UART0 BAUD"
default 115200
config 16550_UART0_PARITY
int "16550 UART0 parity"
default 0
---help---
16550 UART0 parity. 0=None, 1=Odd, 2=Even. Default: None
config 16550_UART0_BITS
int "16550 UART0 number of bits"
default 8
---help---
16550 UART0 number of bits. Default: 8
config 16550_UART0_2STOP
int "16550 UART0 two stop bits"
default 0
---help---
0=1 stop bit, 1=Two stop bits. Default: 1 stop bit
config 16550_UART0_RXBUFSIZE
int "16550 UART0 Rx buffer size"
default 256
---help---
16550 UART0 Rx buffer size. Default: 256
config 16550_UART0_TXBUFSIZE
int "16550 UART0 Tx buffer size"
default 256
---help---
16550 UART0 Tx buffer size. Default: 256
endif
config 16550_UART1
bool "16550 UART1"
default n
if 16550_UART1
config 16550_UART1_BASE
hex "16550 UART1 base address"
config 16550_UART1_CLOCK
int "16550 UART1 clock"
config 16550_UART1_IRQ
int "16550 UART1 IRQ number"
config 16550_UART1_BAUD
int "16550 UART1 BAUD"
default 115200
config 16550_UART1_PARITY
int "16550 UART1 parity"
default 0
---help---
16550 UART1 parity. 0=None, 1=Odd, 2=Even. Default: None
config 16550_UART1_BITS
int "16550 UART1 number of bits"
default 8
---help---
16550 UART1 number of bits. Default: 8
config 16550_UART1_2STOP
int "16550 UART1 two stop bits"
default 0
---help---
0=1 stop bit, 1=Two stop bits. Default: 1 stop bit
config 16550_UART1_RXBUFSIZE
int "16550 UART1 Rx buffer size"
default 256
---help---
16550 UART1 Rx buffer size. Default: 256
config 16550_UART1_TXBUFSIZE
int "16550 UART1 Tx buffer size"
default 256
---help---
16550 UART1 Tx buffer size. Default: 256
endif
config 16550_UART2
bool "16550 UART2"
default n
if 16550_UART2
config 16550_UART2_BASE
hex "16550 UART2 base address"
config 16550_UART2_CLOCK
int "16550 UART2 clock"
config 16550_UART2_IRQ
int "16550 UART2 IRQ number"
config 16550_UART2_BAUD
int "16550 UART2 BAUD"
default 115200
config 16550_UART2_PARITY
int "16550 UART2 parity"
default 0
---help---
16550 UART2 parity. 0=None, 1=Odd, 2=Even. Default: None
config 16550_UART2_BITS
int "16550 UART2 number of bits"
default 8
---help---
16550 UART2 number of bits. Default: 8
config 16550_UART2_2STOP
int "16550 UART2 two stop bits"
default 0
---help---
0=1 stop bit, 1=Two stop bits. Default: 1 stop bit
config 16550_UART2_RXBUFSIZE
int "16550 UART2 Rx buffer size"
default 256
---help---
16550 UART2 Rx buffer size. Default: 256
config 16550_UART2_TXBUFSIZE
int "16550 UART2 Tx buffer size"
default 256
---help---
16550 UART2 Tx buffer size. Default: 256
endif
config 16550_UART3
bool "16550 UART3"
default n
if 16550_UART3
config 16550_UART3_BASE
hex "16550 UART3 base address"
config 16550_UART3_CLOCK
int "16550 UART3 clock"
config 16550_UART3_IRQ
int "16550 UART3 IRQ number"
config 16550_UART3_BAUD
int "16550 UART3 BAUD"
default 115200
config 16550_UART3_PARITY
int "16550 UART3 parity"
default 0
---help---
16550 UART3 parity. 0=None, 1=Odd, 2=Even. Default: None
config 16550_UART3_BITS
int "16550 UART3 number of bits"
default 8
---help---
16550 UART3 number of bits. Default: 8
config 16550_UART3_2STOP
int "16550 UART3 two stop bits"
default 0
---help---
0=1 stop bit, 1=Two stop bits. Default: 1 stop bit
config 16550_UART3_RXBUFSIZE
int "16550 UART3 Rx buffer size"
default 256
---help---
16550 UART3 Rx buffer size. Default: 256
config 16550_UART3_TXBUFSIZE
int "16550 UART3 Tx buffer size"
default 256
---help---
16550 UART3 Tx buffer size. Default: 256
endif
choice
prompt "16550 Serial Console"
default NO_SERIAL_CONSOLE
config UART0_SERIAL_CONSOLE
bool "16550 UART0 serial console"
depends on 16550_UART0
config UART1_SERIAL_CONSOLE
bool "16550 UART1 serial console"
depends on 16550_UART1
config UART2_SERIAL_CONSOLE
bool "16550 UART2 serial console"
depends on 16550_UART2
config UART3_SERIAL_CONSOLE
bool "16550 UART3 serial console"
depends on 16550_UART3
config NO_SERIAL_CONSOLE
bool "No 16550 serial console"
endchoice
config 16550_SUPRESS_CONFIG
bool "Suppress 16550 configuration"
default n
---help---
This option is useful, for example, if you are using a bootloader
that configures the 16550_UART. In that case, you may want to
just leave the existing console configuration in place. Default: n
config 16550_REGINCR
int "Address increment between 16550 registers"
default 1
---help---
The address increment between 16550 registers. Options are 1, 2, or 4.
Default: 1
config 16550_REGWIDTH
int "Bit width of 16550 registers"
default 8
---help---
The bit width of registers. Options are 8, 16, or 32. Default: 8
config 16550_ADDRWIDTH
int "Address width of 16550 registers"
default 8
---help---
The bit width of registers. Options are 8, 16, or 32. Default: 8
endif
config STANDARD_SERIAL
bool "Standard serial"
default y if !LOWLEVEL_CONSOLE && !16550_UART
if STANDARD_SERIAL
config CONFIG_SERIAL_NPOLLWAITERS
int "Number of poll threads"
default 2
depends on !DISABLE_POLL
---help---
Maximum number of threads than can be waiting for POLL events.
Default: 2
endif
#
# USARTn_XYZ settings
#
config ARCH_HAS_USART0
bool
config ARCH_HAS_USART1
bool
config ARCH_HAS_USART2
bool
config ARCH_HAS_USART3
bool
config ARCH_HAS_USART4
bool
config ARCH_HAS_USART5
bool
config ARCH_HAS_USART6
bool
choice
prompt "Serial console"
depends on ARCH_HAS_USART0 || \
ARCH_HAS_USART1 || ARCH_HAS_USART2 || ARCH_HAS_USART3 || \
ARCH_HAS_USART4 || ARCH_HAS_USART5 || ARCH_HAS_USART6
config USART0_SERIAL_CONSOLE
bool "USART0"
depends on ARCH_HAS_USART0
config USART1_SERIAL_CONSOLE
bool "USART1"
depends on ARCH_HAS_USART1
config USART2_SERIAL_CONSOLE
bool "USART2"
depends on ARCH_HAS_USART2
config USART3_SERIAL_CONSOLE
bool "USART3"
depends on ARCH_HAS_USART3
config USART4_SERIAL_CONSOLE
bool "USART4"
depends on ARCH_HAS_USART4
config USART5_SERIAL_CONSOLE
bool "USART5"
depends on ARCH_HAS_USART5
config USART6_SERIAL_CONSOLE
bool "USART6"
depends on ARCH_HAS_USART6
endchoice
menu "USART0 Configuration"
depends on ARCH_HAS_USART0
config USART0_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART0_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART0_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART0_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART0_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART0_2STOP
int "use 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART1 Configuration"
depends on ARCH_HAS_USART1
config USART1_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART1_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART1_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART1_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART1_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART1_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART2 Configuration"
depends on ARCH_HAS_USART2
config USART2_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART2_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART2_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART2_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART2_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART2_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART3 Configuration"
depends on ARCH_HAS_USART3
config USART3_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART3_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART3_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART3_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART3_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART3_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART4 Configuration"
depends on ARCH_HAS_USART4
config USART4_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART4_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART4_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART4_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART4_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART4_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART5 Configuration"
depends on ARCH_HAS_USART5
config USART5_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART5_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART5_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART5_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART5_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART5_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
menu "USART6 Configuration"
depends on ARCH_HAS_USART6
config USART6_RXBUFSIZE
int "receive buffer size"
default 256
help
Characters are buffered as they are received. This specifies
the size of the receive buffer.
config USART6_TXBUFSIZE
int "transmit buffer size"
default 256
help
Characters are buffered before being sent. This specifies
the size of the transmit buffer.
config USART6_BAUD
int "baud rate"
default 11520
help
The configured BAUD of the USART.
config USART6_BITS
int "character size"
default 8
help
The number of bits. Must be either 7 or 8.
config USART6_PARITY
int "parity setting"
default 0
help
0=no parity, 1=odd parity, 2=even parity
config USART6_2STOP
int "uses 2 stop bits"
default 0
help
1=Two stop bits
endmenu
|