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1menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
5config ARM_PTDUMP
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
8 select DEBUG_FS
9 ---help---
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
14 kernel.
15 If in doubt, say "N"
16
17config STRICT_DEVMEM
18 bool "Filter access to /dev/mem"
19 depends on MMU
20 ---help---
21 If this option is disabled, you allow userspace (root) access to all
22 of memory, including kernel and userspace memory. Accidental
23 access to this is obviously disastrous, but specific access can
24 be used by people debugging the kernel.
25
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
28
29 If in doubt, say Y.
30
31# RMK wants arm kernels compiled with frame pointers or stack unwinding.
32# If you know what you are doing and are willing to live without stack
33# traces, you can get a slightly smaller kernel by setting this option to
34# n, but then RMK will have to kill you ;).
35config FRAME_POINTER
36 bool
37 depends on !THUMB2_KERNEL
38 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
39 help
40 If you say N here, the resulting kernel will be slightly smaller and
41 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
42 when a problem occurs with the kernel, the information that is
43 reported is severely limited.
44
45config ARM_UNWIND
46 bool "Enable stack unwinding support (EXPERIMENTAL)"
47 depends on AEABI
48 default y
49 help
50 This option enables stack unwinding support in the kernel
51 using the information automatically generated by the
52 compiler. The resulting kernel image is slightly bigger but
53 the performance is not affected. Currently, this feature
54 only works with EABI compilers. If unsure say Y.
55
56config OLD_MCOUNT
57 bool
58 depends on FUNCTION_TRACER && FRAME_POINTER
59 default y
60
61config DEBUG_USER
62 bool "Verbose user fault messages"
63 help
64 When a user program crashes due to an exception, the kernel can
65 print a brief message explaining what the problem was. This is
66 sometimes helpful for debugging but serves no purpose on a
67 production system. Most people should say N here.
68
69 In addition, you need to pass user_debug=N on the kernel command
70 line to enable this feature. N consists of the sum of:
71
72 1 - undefined instruction events
73 2 - system calls
74 4 - invalid data aborts
75 8 - SIGSEGV faults
76 16 - SIGBUS faults
77
78# These options are only for real kernel hackers who want to get their hands dirty.
79config DEBUG_LL
80 bool "Kernel low-level debugging functions (read help!)"
81 depends on DEBUG_KERNEL
82 help
83 Say Y here to include definitions of printascii, printch, printhex
84 in the kernel. This is helpful if you are debugging code that
85 executes before the console is initialized.
86
87 Note that selecting this option will limit the kernel to a single
88 UART definition, as specified below. Attempting to boot the kernel
89 image on a different platform *will not work*, so this option should
90 not be enabled for kernels that are intended to be portable.
91
92choice
93 prompt "Kernel low-level debugging port"
94 depends on DEBUG_LL
95
96 config AT91_DEBUG_LL_DBGU0
97 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
98 depends on HAVE_AT91_DBGU0
99
100 config AT91_DEBUG_LL_DBGU1
101 bool "Kernel low-level debugging on 9263 and 9g45"
102 depends on HAVE_AT91_DBGU1
103
104 config DEBUG_BCM2835
105 bool "Kernel low-level debugging on BCM2835 PL011 UART"
106 depends on ARCH_BCM2835
107 select DEBUG_UART_PL01X
108
109 config DEBUG_BCM_5301X
110 bool "Kernel low-level debugging on BCM5301X UART1"
111 depends on ARCH_BCM_5301X
112 select DEBUG_UART_PL01X
113
114 config DEBUG_BCM_KONA_UART
115 bool "Kernel low-level debugging messages via BCM KONA UART"
116 depends on ARCH_BCM_MOBILE
117 select DEBUG_UART_8250
118 help
119 Say Y here if you want kernel low-level debugging support
120 on Broadcom SoC platforms.
121 This low level debug works for Broadcom
122 mobile SoCs in the Kona family of chips (e.g. bcm28155,
123 bcm11351, etc...)
124
125 config DEBUG_BERLIN_UART
126 bool "Marvell Berlin SoC Debug UART"
127 depends on ARCH_BERLIN
128 select DEBUG_UART_8250
129 help
130 Say Y here if you want kernel low-level debugging support
131 on Marvell Berlin SoC based platforms.
132
133 config DEBUG_CLPS711X_UART1
134 bool "Kernel low-level debugging messages via UART1"
135 depends on ARCH_CLPS711X
136 help
137 Say Y here if you want the debug print routines to direct
138 their output to the first serial port on these devices.
139
140 config DEBUG_CLPS711X_UART2
141 bool "Kernel low-level debugging messages via UART2"
142 depends on ARCH_CLPS711X
143 help
144 Say Y here if you want the debug print routines to direct
145 their output to the second serial port on these devices.
146
147 config DEBUG_CNS3XXX
148 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
149 depends on ARCH_CNS3XXX
150 select DEBUG_UART_PL01X
151 help
152 Say Y here if you want the debug print routines to direct
153 their output to the CNS3xxx UART0.
154
155 config DEBUG_DAVINCI_DA8XX_UART1
156 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
157 depends on ARCH_DAVINCI_DA8XX
158 select DEBUG_UART_8250
159 help
160 Say Y here if you want the debug print routines to direct
161 their output to UART1 serial port on DaVinci DA8XX devices.
162
163 config DEBUG_DAVINCI_DA8XX_UART2
164 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
165 depends on ARCH_DAVINCI_DA8XX
166 select DEBUG_UART_8250
167 help
168 Say Y here if you want the debug print routines to direct
169 their output to UART2 serial port on DaVinci DA8XX devices.
170
171 config DEBUG_DAVINCI_DMx_UART0
172 bool "Kernel low-level debugging on DaVinci DMx using UART0"
173 depends on ARCH_DAVINCI_DMx
174 select DEBUG_UART_8250
175 help
176 Say Y here if you want the debug print routines to direct
177 their output to UART0 serial port on DaVinci DMx devices.
178
179 config DEBUG_ZYNQ_UART0
180 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
181 depends on ARCH_ZYNQ
182 help
183 Say Y here if you want the debug print routines to direct
184 their output to UART0 on the Zynq platform.
185
186 config DEBUG_ZYNQ_UART1
187 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
188 depends on ARCH_ZYNQ
189 help
190 Say Y here if you want the debug print routines to direct
191 their output to UART1 on the Zynq platform.
192
193 If you have a ZC702 board and want early boot messages to
194 appear on the USB serial adaptor, select this option.
195
196 config DEBUG_DC21285_PORT
197 bool "Kernel low-level debugging messages via footbridge serial port"
198 depends on FOOTBRIDGE
199 help
200 Say Y here if you want the debug print routines to direct
201 their output to the serial port in the DC21285 (Footbridge).
202
203 config DEBUG_FOOTBRIDGE_COM1
204 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
205 depends on FOOTBRIDGE
206 help
207 Say Y here if you want the debug print routines to direct
208 their output to the 8250 at PCI COM1.
209
210 config DEBUG_HI3620_UART
211 bool "Hisilicon HI3620 Debug UART"
212 depends on ARCH_HI3xxx
213 select DEBUG_UART_PL01X
214 help
215 Say Y here if you want kernel low-level debugging support
216 on HI3620 UART.
217
218 config DEBUG_HI3716_UART
219 bool "Hisilicon Hi3716 Debug UART"
220 depends on ARCH_HI3xxx
221 select DEBUG_UART_PL01X
222 help
223 Say Y here if you want kernel low-level debugging support
224 on HI3716 UART.
225
226 config DEBUG_HIGHBANK_UART
227 bool "Kernel low-level debugging messages via Highbank UART"
228 depends on ARCH_HIGHBANK
229 select DEBUG_UART_PL01X
230 help
231 Say Y here if you want the debug print routines to direct
232 their output to the UART on Highbank based devices.
233
234 config DEBUG_IMX1_UART
235 bool "i.MX1 Debug UART"
236 depends on SOC_IMX1
237 help
238 Say Y here if you want kernel low-level debugging support
239 on i.MX1.
240
241 config DEBUG_IMX23_UART
242 bool "i.MX23 Debug UART"
243 depends on SOC_IMX23
244 select DEBUG_UART_PL01X
245 help
246 Say Y here if you want kernel low-level debugging support
247 on i.MX23.
248
249 config DEBUG_IMX25_UART
250 bool "i.MX25 Debug UART"
251 depends on SOC_IMX25
252 help
253 Say Y here if you want kernel low-level debugging support
254 on i.MX25.
255
256 config DEBUG_IMX21_IMX27_UART
257 bool "i.MX21 and i.MX27 Debug UART"
258 depends on SOC_IMX21 || SOC_IMX27
259 help
260 Say Y here if you want kernel low-level debugging support
261 on i.MX21 or i.MX27.
262
263 config DEBUG_IMX28_UART
264 bool "i.MX28 Debug UART"
265 depends on SOC_IMX28
266 select DEBUG_UART_PL01X
267 help
268 Say Y here if you want kernel low-level debugging support
269 on i.MX28.
270
271 config DEBUG_IMX31_UART
272 bool "i.MX31 Debug UART"
273 depends on SOC_IMX31
274 help
275 Say Y here if you want kernel low-level debugging support
276 on i.MX31.
277
278 config DEBUG_IMX35_UART
279 bool "i.MX35 Debug UART"
280 depends on SOC_IMX35
281 help
282 Say Y here if you want kernel low-level debugging support
283 on i.MX35.
284
285 config DEBUG_IMX50_UART
286 bool "i.MX50 Debug UART"
287 depends on SOC_IMX50
288 help
289 Say Y here if you want kernel low-level debugging support
290 on i.MX50.
291
292 config DEBUG_IMX51_UART
293 bool "i.MX51 Debug UART"
294 depends on SOC_IMX51
295 help
296 Say Y here if you want kernel low-level debugging support
297 on i.MX51.
298
299 config DEBUG_IMX53_UART
300 bool "i.MX53 Debug UART"
301 depends on SOC_IMX53
302 help
303 Say Y here if you want kernel low-level debugging support
304 on i.MX53.
305
306 config DEBUG_IMX6Q_UART
307 bool "i.MX6Q/DL Debug UART"
308 depends on SOC_IMX6Q
309 help
310 Say Y here if you want kernel low-level debugging support
311 on i.MX6Q/DL.
312
313 config DEBUG_IMX6SL_UART
314 bool "i.MX6SL Debug UART"
315 depends on SOC_IMX6SL
316 help
317 Say Y here if you want kernel low-level debugging support
318 on i.MX6SL.
319
320 config DEBUG_KEYSTONE_UART0
321 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
322 depends on ARCH_KEYSTONE
323 select DEBUG_UART_8250
324 help
325 Say Y here if you want the debug print routines to direct
326 their output to UART0 serial port on KEYSTONE2 devices.
327
328 config DEBUG_KEYSTONE_UART1
329 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
330 depends on ARCH_KEYSTONE
331 select DEBUG_UART_8250
332 help
333 Say Y here if you want the debug print routines to direct
334 their output to UART1 serial port on KEYSTONE2 devices.
335
336 config DEBUG_MMP_UART2
337 bool "Kernel low-level debugging message via MMP UART2"
338 depends on ARCH_MMP
339 select DEBUG_UART_8250
340 help
341 Say Y here if you want kernel low-level debugging support
342 on MMP UART2.
343
344 config DEBUG_MMP_UART3
345 bool "Kernel low-level debugging message via MMP UART3"
346 depends on ARCH_MMP
347 select DEBUG_UART_8250
348 help
349 Say Y here if you want kernel low-level debugging support
350 on MMP UART3.
351
352 config DEBUG_MSM_UART1
353 bool "Kernel low-level debugging messages via MSM UART1"
354 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
355 select DEBUG_MSM_UART
356 help
357 Say Y here if you want the debug print routines to direct
358 their output to the first serial port on MSM devices.
359
360 config DEBUG_MSM_UART2
361 bool "Kernel low-level debugging messages via MSM UART2"
362 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
363 select DEBUG_MSM_UART
364 help
365 Say Y here if you want the debug print routines to direct
366 their output to the second serial port on MSM devices.
367
368 config DEBUG_MSM_UART3
369 bool "Kernel low-level debugging messages via MSM UART3"
370 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
371 select DEBUG_MSM_UART
372 help
373 Say Y here if you want the debug print routines to direct
374 their output to the third serial port on MSM devices.
375
376 config DEBUG_MSM8660_UART
377 bool "Kernel low-level debugging messages via MSM 8660 UART"
378 depends on ARCH_MSM8X60
379 select MSM_HAS_DEBUG_UART_HS
380 select DEBUG_MSM_UART
381 help
382 Say Y here if you want the debug print routines to direct
383 their output to the serial port on MSM 8660 devices.
384
385 config DEBUG_MSM8960_UART
386 bool "Kernel low-level debugging messages via MSM 8960 UART"
387 depends on ARCH_MSM8960
388 select MSM_HAS_DEBUG_UART_HS
389 select DEBUG_MSM_UART
390 help
391 Say Y here if you want the debug print routines to direct
392 their output to the serial port on MSM 8960 devices.
393
394 config DEBUG_MSM8974_UART
395 bool "Kernel low-level debugging messages via MSM 8974 UART"
396 depends on ARCH_MSM8974
397 select MSM_HAS_DEBUG_UART_HS
398 select DEBUG_MSM_UART
399 help
400 Say Y here if you want the debug print routines to direct
401 their output to the serial port on MSM 8974 devices.
402
403 config DEBUG_MVEBU_UART
404 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
405 depends on ARCH_MVEBU
406 select DEBUG_UART_8250
407 help
408 Say Y here if you want kernel low-level debugging support
409 on MVEBU based platforms.
410
411 This option should be used with the old bootloaders
412 that left the internal registers mapped at
413 0xd0000000. As of today, this is the case on
414 platforms such as the Globalscale Mirabox or the
415 Plathome OpenBlocks AX3, when using the original
416 bootloader.
417
418 If the wrong DEBUG_MVEBU_UART* option is selected,
419 when u-boot hands over to the kernel, the system
420 silently crashes, with no serial output at all.
421
422 config DEBUG_MVEBU_UART_ALTERNATE
423 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
424 depends on ARCH_MVEBU
425 select DEBUG_UART_8250
426 help
427 Say Y here if you want kernel low-level debugging support
428 on MVEBU based platforms.
429
430 This option should be used with the new bootloaders
431 that remap the internal registers at 0xf1000000.
432
433 If the wrong DEBUG_MVEBU_UART* option is selected,
434 when u-boot hands over to the kernel, the system
435 silently crashes, with no serial output at all.
436
437 config DEBUG_VF_UART
438 bool "Vybrid UART"
439 depends on SOC_VF610
440 help
441 Say Y here if you want kernel low-level debugging support
442 on Vybrid based platforms.
443
444 config DEBUG_NOMADIK_UART
445 bool "Kernel low-level debugging messages via NOMADIK UART"
446 depends on ARCH_NOMADIK
447 select DEBUG_UART_PL01X
448 help
449 Say Y here if you want kernel low-level debugging support
450 on NOMADIK based platforms.
451
452 config DEBUG_NSPIRE_CLASSIC_UART
453 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
454 depends on ARCH_NSPIRE
455 select DEBUG_UART_8250
456 help
457 Say Y here if you want kernel low-level debugging support
458 on TI-NSPIRE classic models.
459
460 config DEBUG_NSPIRE_CX_UART
461 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
462 depends on ARCH_NSPIRE
463 select DEBUG_UART_PL01X
464 help
465 Say Y here if you want kernel low-level debugging support
466 on TI-NSPIRE CX models.
467
468 config DEBUG_OMAP2UART1
469 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
470 depends on ARCH_OMAP2PLUS
471 select DEBUG_OMAP2PLUS_UART
472 help
473 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
474 omap3 torpedo and 3530 lv som.
475
476 config DEBUG_OMAP2UART2
477 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
478 depends on ARCH_OMAP2PLUS
479 select DEBUG_OMAP2PLUS_UART
480
481 config DEBUG_OMAP2UART3
482 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
483 depends on ARCH_OMAP2PLUS
484 select DEBUG_OMAP2PLUS_UART
485
486 config DEBUG_OMAP3UART3
487 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
488 depends on ARCH_OMAP2PLUS
489 select DEBUG_OMAP2PLUS_UART
490 help
491 This covers at least cm_t3x, beagle, crane, devkit8000,
492 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
493 and 3517evm.
494
495 config DEBUG_OMAP4UART3
496 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
497 depends on ARCH_OMAP2PLUS
498 select DEBUG_OMAP2PLUS_UART
499
500 config DEBUG_OMAP3UART4
501 bool "Kernel low-level debugging messages via OMAP36XX UART4"
502 depends on ARCH_OMAP2PLUS
503 select DEBUG_OMAP2PLUS_UART
504
505 config DEBUG_OMAP4UART4
506 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
507 depends on ARCH_OMAP2PLUS
508 select DEBUG_OMAP2PLUS_UART
509
510 config DEBUG_TI81XXUART1
511 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
512 depends on ARCH_OMAP2PLUS
513 select DEBUG_OMAP2PLUS_UART
514
515 config DEBUG_TI81XXUART2
516 bool "Kernel low-level debugging messages via TI81XX UART2"
517 depends on ARCH_OMAP2PLUS
518 select DEBUG_OMAP2PLUS_UART
519
520 config DEBUG_TI81XXUART3
521 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
522 depends on ARCH_OMAP2PLUS
523 select DEBUG_OMAP2PLUS_UART
524
525 config DEBUG_AM33XXUART1
526 bool "Kernel low-level debugging messages via AM33XX UART1"
527 depends on ARCH_OMAP2PLUS
528 select DEBUG_OMAP2PLUS_UART
529
530 config DEBUG_ZOOM_UART
531 bool "Kernel low-level debugging messages via Zoom2/3 UART"
532 depends on ARCH_OMAP2PLUS
533 select DEBUG_OMAP2PLUS_UART
534
535 config DEBUG_PICOXCELL_UART
536 depends on ARCH_PICOXCELL
537 bool "Use PicoXcell UART for low-level debug"
538 select DEBUG_UART_8250
539 help
540 Say Y here if you want kernel low-level debugging support
541 on PicoXcell based platforms.
542
543 config DEBUG_PXA_UART1
544 depends on ARCH_PXA
545 bool "Use PXA UART1 for low-level debug"
546 select DEBUG_UART_8250
547 help
548 Say Y here if you want kernel low-level debugging support
549 on PXA UART1.
550
551 config DEBUG_REALVIEW_STD_PORT
552 bool "RealView Default UART"
553 depends on ARCH_REALVIEW
554 select DEBUG_UART_PL01X
555 help
556 Say Y here if you want the debug print routines to direct
557 their output to the serial port on RealView EB, PB11MP, PBA8
558 and PBX platforms.
559
560 config DEBUG_REALVIEW_PB1176_PORT
561 bool "RealView PB1176 UART"
562 depends on MACH_REALVIEW_PB1176
563 select DEBUG_UART_PL01X
564 help
565 Say Y here if you want the debug print routines to direct
566 their output to the standard serial port on the RealView
567 PB1176 platform.
568
569 config DEBUG_RK29_UART0
570 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
571 depends on ARCH_ROCKCHIP
572 select DEBUG_UART_8250
573 help
574 Say Y here if you want kernel low-level debugging support
575 on Rockchip based platforms.
576
577 config DEBUG_RK29_UART1
578 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
579 depends on ARCH_ROCKCHIP
580 select DEBUG_UART_8250
581 help
582 Say Y here if you want kernel low-level debugging support
583 on Rockchip based platforms.
584
585 config DEBUG_RK29_UART2
586 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
587 depends on ARCH_ROCKCHIP
588 select DEBUG_UART_8250
589 help
590 Say Y here if you want kernel low-level debugging support
591 on Rockchip based platforms.
592
593 config DEBUG_RK3X_UART0
594 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
595 depends on ARCH_ROCKCHIP
596 select DEBUG_UART_8250
597 help
598 Say Y here if you want kernel low-level debugging support
599 on Rockchip based platforms.
600
601 config DEBUG_RK3X_UART1
602 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
603 depends on ARCH_ROCKCHIP
604 select DEBUG_UART_8250
605 help
606 Say Y here if you want kernel low-level debugging support
607 on Rockchip based platforms.
608
609 config DEBUG_RK3X_UART2
610 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
611 depends on ARCH_ROCKCHIP
612 select DEBUG_UART_8250
613 help
614 Say Y here if you want kernel low-level debugging support
615 on Rockchip based platforms.
616
617 config DEBUG_RK3X_UART3
618 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
619 depends on ARCH_ROCKCHIP
620 select DEBUG_UART_8250
621 help
622 Say Y here if you want kernel low-level debugging support
623 on Rockchip based platforms.
624
625 config DEBUG_S3C_UART0
626 depends on PLAT_SAMSUNG
627 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
628 bool "Use S3C UART 0 for low-level debug"
629 help
630 Say Y here if you want the debug print routines to direct
631 their output to UART 0. The port must have been initialised
632 by the boot-loader before use.
633
634 The uncompressor code port configuration is now handled
635 by CONFIG_S3C_LOWLEVEL_UART_PORT.
636
637 config DEBUG_S3C_UART1
638 depends on PLAT_SAMSUNG
639 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
640 bool "Use S3C UART 1 for low-level debug"
641 help
642 Say Y here if you want the debug print routines to direct
643 their output to UART 1. The port must have been initialised
644 by the boot-loader before use.
645
646 The uncompressor code port configuration is now handled
647 by CONFIG_S3C_LOWLEVEL_UART_PORT.
648
649 config DEBUG_S3C_UART2
650 depends on PLAT_SAMSUNG
651 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
652 bool "Use S3C UART 2 for low-level debug"
653 help
654 Say Y here if you want the debug print routines to direct
655 their output to UART 2. The port must have been initialised
656 by the boot-loader before use.
657
658 The uncompressor code port configuration is now handled
659 by CONFIG_S3C_LOWLEVEL_UART_PORT.
660
661 config DEBUG_S3C_UART3
662 depends on PLAT_SAMSUNG && ARCH_EXYNOS
663 select DEBUG_EXYNOS_UART
664 bool "Use S3C UART 3 for low-level debug"
665 help
666 Say Y here if you want the debug print routines to direct
667 their output to UART 3. The port must have been initialised
668 by the boot-loader before use.
669
670 The uncompressor code port configuration is now handled
671 by CONFIG_S3C_LOWLEVEL_UART_PORT.
672
673 config DEBUG_SOCFPGA_UART
674 depends on ARCH_SOCFPGA
675 bool "Use SOCFPGA UART for low-level debug"
676 select DEBUG_UART_8250
677 help
678 Say Y here if you want kernel low-level debugging support
679 on SOCFPGA based platforms.
680
681 config DEBUG_SUNXI_UART0
682 bool "Kernel low-level debugging messages via sunXi UART0"
683 depends on ARCH_SUNXI
684 select DEBUG_UART_8250
685 help
686 Say Y here if you want kernel low-level debugging support
687 on Allwinner A1X based platforms on the UART0.
688
689 config DEBUG_SUNXI_UART1
690 bool "Kernel low-level debugging messages via sunXi UART1"
691 depends on ARCH_SUNXI
692 select DEBUG_UART_8250
693 help
694 Say Y here if you want kernel low-level debugging support
695 on Allwinner A1X based platforms on the UART1.
696
697 config TEGRA_DEBUG_UART_AUTO_ODMDATA
698 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
699 depends on ARCH_TEGRA
700 select DEBUG_TEGRA_UART
701 help
702 Automatically determines which UART to use for low-level
703 debug based on the ODMDATA value. This value is part of
704 the BCT, and is written to the boot memory device using
705 nvflash, or other flashing tool. When bits 19:18 are 3,
706 then bits 17:15 indicate which UART to use; 0/1/2/3/4
707 are UART A/B/C/D/E.
708
709 config TEGRA_DEBUG_UARTA
710 bool "Kernel low-level debugging messages via Tegra UART A"
711 depends on ARCH_TEGRA
712 select DEBUG_TEGRA_UART
713 help
714 Say Y here if you want kernel low-level debugging support
715 on Tegra based platforms.
716
717 config TEGRA_DEBUG_UARTB
718 bool "Kernel low-level debugging messages via Tegra UART B"
719 depends on ARCH_TEGRA
720 select DEBUG_TEGRA_UART
721 help
722 Say Y here if you want kernel low-level debugging support
723 on Tegra based platforms.
724
725 config TEGRA_DEBUG_UARTC
726 bool "Kernel low-level debugging messages via Tegra UART C"
727 depends on ARCH_TEGRA
728 select DEBUG_TEGRA_UART
729 help
730 Say Y here if you want kernel low-level debugging support
731 on Tegra based platforms.
732
733 config TEGRA_DEBUG_UARTD
734 bool "Kernel low-level debugging messages via Tegra UART D"
735 depends on ARCH_TEGRA
736 select DEBUG_TEGRA_UART
737 help
738 Say Y here if you want kernel low-level debugging support
739 on Tegra based platforms.
740
741 config TEGRA_DEBUG_UARTE
742 bool "Kernel low-level debugging messages via Tegra UART E"
743 depends on ARCH_TEGRA
744 select DEBUG_TEGRA_UART
745 help
746 Say Y here if you want kernel low-level debugging support
747 on Tegra based platforms.
748
749 config DEBUG_SIRFPRIMA2_UART1
750 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
751 depends on ARCH_PRIMA2
752 help
753 Say Y here if you want the debug print routines to direct
754 their output to the uart1 port on SiRFprimaII devices.
755
756 config DEBUG_SIRFMARCO_UART1
757 bool "Kernel low-level debugging messages via SiRFmarco UART1"
758 depends on ARCH_MARCO
759 help
760 Say Y here if you want the debug print routines to direct
761 their output to the uart1 port on SiRFmarco devices.
762
763 config STIH41X_DEBUG_ASC2
764 bool "Use StiH415/416 ASC2 UART for low-level debug"
765 depends on ARCH_STI
766 select DEBUG_STI_UART
767 help
768 Say Y here if you want kernel low-level debugging support
769 on STiH415/416 based platforms like b2000, which has
770 default UART wired up to ASC2.
771
772 If unsure, say N.
773
774 config STIH41X_DEBUG_SBC_ASC1
775 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
776 depends on ARCH_STI
777 select DEBUG_STI_UART
778 help
779 Say Y here if you want kernel low-level debugging support
780 on STiH415/416 based platforms like b2020. which has
781 default UART wired up to SBC ASC1.
782
783 If unsure, say N.
784
785 config DEBUG_U300_UART
786 bool "Kernel low-level debugging messages via U300 UART0"
787 depends on ARCH_U300
788 select DEBUG_UART_PL01X
789 help
790 Say Y here if you want the debug print routines to direct
791 their output to the uart port on U300 devices.
792
793 config DEBUG_UX500_UART
794 depends on ARCH_U8500
795 bool "Use Ux500 UART for low-level debug"
796 help
797 Say Y here if you want kernel low-level debugging support
798 on Ux500 based platforms.
799
800 config DEBUG_VEXPRESS_UART0_DETECT
801 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
802 depends on ARCH_VEXPRESS && CPU_CP15_MMU
803 help
804 This option enables a simple heuristic which tries to determine
805 the motherboard's memory map variant (original or RS1) and then
806 choose the relevant UART0 base address.
807
808 Note that this will only work with standard A-class core tiles,
809 and may fail with non-standard SMM or custom software models.
810
811 config DEBUG_VEXPRESS_UART0_CA9
812 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
813 depends on ARCH_VEXPRESS
814 select DEBUG_UART_PL01X
815 help
816 This option selects UART0 at 0x10009000. Except for custom models,
817 this applies only to the V2P-CA9 tile.
818
819 config DEBUG_VEXPRESS_UART0_RS1
820 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
821 depends on ARCH_VEXPRESS
822 select DEBUG_UART_PL01X
823 help
824 This option selects UART0 at 0x1c090000. This applies to most
825 of the tiles using the RS1 memory map, including all new A-class
826 core tiles, FPGA-based SMMs and software models.
827
828 config DEBUG_VEXPRESS_UART0_CRX
829 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
830 depends on ARCH_VEXPRESS && !MMU
831 select DEBUG_UART_PL01X
832 help
833 This option selects UART0 at 0xb0090000. This is appropriate for
834 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
835
836 config DEBUG_VT8500_UART0
837 bool "Use UART0 on VIA/Wondermedia SoCs"
838 depends on ARCH_VT8500
839 help
840 This option selects UART0 on VIA/Wondermedia System-on-a-chip
841 devices, including VT8500, WM8505, WM8650 and WM8850.
842
843 config DEBUG_LL_UART_NONE
844 bool "No low-level debugging UART"
845 depends on !ARCH_MULTIPLATFORM
846 help
847 Say Y here if your platform doesn't provide a UART option
848 above. This relies on your platform choosing the right UART
849 definition internally in order for low-level debugging to
850 work.
851
852 config DEBUG_ICEDCC
853 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
854 help
855 Say Y here if you want the debug print routines to direct
856 their output to the EmbeddedICE macrocell's DCC channel using
857 co-processor 14. This is known to work on the ARM9 style ICE
858 channel and on the XScale with the PEEDI.
859
860 Note that the system will appear to hang during boot if there
861 is nothing connected to read from the DCC.
862
863 config DEBUG_SEMIHOSTING
864 bool "Kernel low-level debug output via semihosting I/O"
865 help
866 Semihosting enables code running on an ARM target to use
867 the I/O facilities on a host debugger/emulator through a
868 simple SVC call. The host debugger or emulator must have
869 semihosting enabled for the special svc call to be trapped
870 otherwise the kernel will crash.
871
872 This is known to work with OpenOCD, as well as
873 ARM's Fast Models, or any other controlling environment
874 that implements semihosting.
875
876 For more details about semihosting, please see
877 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
878
879 config DEBUG_LL_UART_8250
880 bool "Kernel low-level debugging via 8250 UART"
881 help
882 Say Y here if you wish the debug print routes to direct
883 their output to an 8250 UART. You can use this option
884 to provide the parameters for the 8250 UART rather than
885 selecting one of the platform specific options above if
886 you know the parameters for the port.
887
888 This option is preferred over the platform specific
889 options; the platform specific options are deprecated
890 and will be soon removed.
891
892 config DEBUG_LL_UART_EFM32
893 bool "Kernel low-level debugging via efm32 UART"
894 depends on ARCH_EFM32
895 help
896 Say Y here if you want the debug print routines to direct
897 their output to an UART or USART port on efm32 based
898 machines. Use the following addresses for DEBUG_UART_PHYS:
899
900 0x4000c000 | USART0
901 0x4000c400 | USART1
902 0x4000c800 | USART2
903 0x4000e000 | UART0
904 0x4000e400 | UART1
905
906 config DEBUG_LL_UART_PL01X
907 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
908 help
909 Say Y here if you wish the debug print routes to direct
910 their output to a PL01x Primecell UART. You can use
911 this option to provide the parameters for the UART
912 rather than selecting one of the platform specific
913 options above if you know the parameters for the port.
914
915 This option is preferred over the platform specific
916 options; the platform specific options are deprecated
917 and will be soon removed.
918
919endchoice
920
921config DEBUG_EXYNOS_UART
922 bool
923
924config DEBUG_OMAP2PLUS_UART
925 bool
926 depends on ARCH_OMAP2PLUS
927
928config DEBUG_IMX_UART_PORT
929 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
930 DEBUG_IMX25_UART || \
931 DEBUG_IMX21_IMX27_UART || \
932 DEBUG_IMX31_UART || \
933 DEBUG_IMX35_UART || \
934 DEBUG_IMX50_UART || \
935 DEBUG_IMX51_UART || \
936 DEBUG_IMX53_UART || \
937 DEBUG_IMX6Q_UART || \
938 DEBUG_IMX6SL_UART
939 default 1
940 depends on ARCH_MXC
941 help
942 Choose UART port on which kernel low-level debug messages
943 should be output.
944
945config DEBUG_TEGRA_UART
946 bool
947 depends on ARCH_TEGRA
948
949config DEBUG_STI_UART
950 bool
951 depends on ARCH_STI
952
953config DEBUG_MSM_UART
954 bool
955 depends on ARCH_MSM || ARCH_QCOM
956
957config DEBUG_LL_INCLUDE
958 string
959 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
960 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
961 default "debug/exynos.S" if DEBUG_EXYNOS_UART
962 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
963 default "debug/icedcc.S" if DEBUG_ICEDCC
964 default "debug/imx.S" if DEBUG_IMX1_UART || \
965 DEBUG_IMX25_UART || \
966 DEBUG_IMX21_IMX27_UART || \
967 DEBUG_IMX31_UART || \
968 DEBUG_IMX35_UART || \
969 DEBUG_IMX50_UART || \
970 DEBUG_IMX51_UART || \
971 DEBUG_IMX53_UART ||\
972 DEBUG_IMX6Q_UART || \
973 DEBUG_IMX6SL_UART
974 default "debug/msm.S" if DEBUG_MSM_UART
975 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
976 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
977 default "debug/sti.S" if DEBUG_STI_UART
978 default "debug/tegra.S" if DEBUG_TEGRA_UART
979 default "debug/ux500.S" if DEBUG_UX500_UART
980 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
981 default "debug/vf.S" if DEBUG_VF_UART
982 default "debug/vt8500.S" if DEBUG_VT8500_UART0
983 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
984 default "mach/debug-macro.S"
985
986# Compatibility options for PL01x
987config DEBUG_UART_PL01X
988 def_bool ARCH_EP93XX || \
989 ARCH_INTEGRATOR || \
990 ARCH_SPEAR3XX || \
991 ARCH_SPEAR6XX || \
992 ARCH_SPEAR13XX || \
993 ARCH_VERSATILE
994
995# Compatibility options for 8250
996config DEBUG_UART_8250
997 def_bool ARCH_DOVE || ARCH_EBSA110 || \
998 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
999 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1000 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
1001 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1002
1003config DEBUG_UART_PHYS
1004 hex "Physical base address of debug UART"
1005 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1006 default 0x01c28000 if DEBUG_SUNXI_UART0
1007 default 0x01c28400 if DEBUG_SUNXI_UART1
1008 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1009 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1010 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1011 default 0x02531000 if DEBUG_KEYSTONE_UART1
1012 default 0x03010fe0 if ARCH_RPC
1013 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1014 DEBUG_VEXPRESS_UART0_CA9
1015 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1016 default 0x10124000 if DEBUG_RK3X_UART0
1017 default 0x10126000 if DEBUG_RK3X_UART1
1018 default 0x101f1000 if ARCH_VERSATILE
1019 default 0x101fb000 if DEBUG_NOMADIK_UART
1020 default 0x16000000 if ARCH_INTEGRATOR
1021 default 0x18000300 if DEBUG_BCM_5301X
1022 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1023 default 0x20060000 if DEBUG_RK29_UART0
1024 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1025 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1026 default 0x20201000 if DEBUG_BCM2835
1027 default 0x3e000000 if DEBUG_BCM_KONA_UART
1028 default 0x4000e400 if DEBUG_LL_UART_EFM32
1029 default 0x40090000 if ARCH_LPC32XX
1030 default 0x40100000 if DEBUG_PXA_UART1
1031 default 0x42000000 if ARCH_GEMINI
1032 default 0x7c0003f8 if FOOTBRIDGE
1033 default 0x80070000 if DEBUG_IMX23_UART
1034 default 0x80074000 if DEBUG_IMX28_UART
1035 default 0x80230000 if DEBUG_PICOXCELL_UART
1036 default 0x808c0000 if ARCH_EP93XX
1037 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1038 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1039 default 0xc0013000 if DEBUG_U300_UART
1040 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1041 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1042 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1043 default 0xd0012000 if DEBUG_MVEBU_UART
1044 default 0xd4017000 if DEBUG_MMP_UART2
1045 default 0xd4018000 if DEBUG_MMP_UART3
1046 default 0xe0000000 if ARCH_SPEAR13XX
1047 default 0xf0000be0 if ARCH_EBSA110
1048 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1049 default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
1050 ARCH_ORION5X
1051 default 0xf7fc9000 if DEBUG_BERLIN_UART
1052 default 0xf8b00000 if DEBUG_HI3716_UART
1053 default 0xfcb00000 if DEBUG_HI3620_UART
1054 default 0xfe800000 if ARCH_IOP32X
1055 default 0xffc02000 if DEBUG_SOCFPGA_UART
1056 default 0xffd82340 if ARCH_IOP13XX
1057 default 0xfff36000 if DEBUG_HIGHBANK_UART
1058 default 0xfffff700 if ARCH_IOP33X
1059 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1060 DEBUG_LL_UART_EFM32 || \
1061 DEBUG_UART_8250 || DEBUG_UART_PL01X
1062
1063config DEBUG_UART_VIRT
1064 hex "Virtual base address of debug UART"
1065 default 0xe0010fe0 if ARCH_RPC
1066 default 0xf0000be0 if ARCH_EBSA110
1067 default 0xf0009000 if DEBUG_CNS3XXX
1068 default 0xf01fb000 if DEBUG_NOMADIK_UART
1069 default 0xf0201000 if DEBUG_BCM2835
1070 default 0xf1000300 if DEBUG_BCM_5301X
1071 default 0xf11f1000 if ARCH_VERSATILE
1072 default 0xf1600000 if ARCH_INTEGRATOR
1073 default 0xf1c28000 if DEBUG_SUNXI_UART0
1074 default 0xf1c28400 if DEBUG_SUNXI_UART1
1075 default 0xf2100000 if DEBUG_PXA_UART1
1076 default 0xf4090000 if ARCH_LPC32XX
1077 default 0xf4200000 if ARCH_GEMINI
1078 default 0xf7fc9000 if DEBUG_BERLIN_UART
1079 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1080 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1081 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1082 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1083 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1084 default 0xfd000000 if ARCH_SPEAR13XX
1085 default 0xfd012000 if ARCH_MV78XX0
1086 default 0xfde12000 if ARCH_DOVE
1087 default 0xfe012000 if ARCH_ORION5X
1088 default 0xfe017000 if DEBUG_MMP_UART2
1089 default 0xfe018000 if DEBUG_MMP_UART3
1090 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1091 default 0xfe230000 if DEBUG_PICOXCELL_UART
1092 default 0xfe300000 if DEBUG_BCM_KONA_UART
1093 default 0xfe800000 if ARCH_IOP32X
1094 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1095 default 0xfeb24000 if DEBUG_RK3X_UART0
1096 default 0xfeb26000 if DEBUG_RK3X_UART1
1097 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1098 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1099 default 0xfec02000 if DEBUG_SOCFPGA_UART
1100 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1101 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1102 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1103 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1104 default 0xfed12000 if ARCH_KIRKWOOD
1105 default 0xfed60000 if DEBUG_RK29_UART0
1106 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1107 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1108 default 0xfedc0000 if ARCH_EP93XX
1109 default 0xfee003f8 if FOOTBRIDGE
1110 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1111 default 0xfee82340 if ARCH_IOP13XX
1112 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1113 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1114 default 0xfef36000 if DEBUG_HIGHBANK_UART
1115 default 0xfefff700 if ARCH_IOP33X
1116 default 0xff003000 if DEBUG_U300_UART
1117 default DEBUG_UART_PHYS if !MMU
1118 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1119 DEBUG_UART_8250 || DEBUG_UART_PL01X
1120
1121config DEBUG_UART_8250_SHIFT
1122 int "Register offset shift for the 8250 debug UART"
1123 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1124 default 0 if FOOTBRIDGE || ARCH_IOP32X
1125 default 2
1126
1127config DEBUG_UART_8250_WORD
1128 bool "Use 32-bit accesses for 8250 UART"
1129 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1130 depends on DEBUG_UART_8250_SHIFT >= 2
1131 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1132 ARCH_KEYSTONE || \
1133 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1134 DEBUG_DAVINCI_DA8XX_UART2 || \
1135 DEBUG_BCM_KONA_UART
1136
1137config DEBUG_UART_8250_FLOW_CONTROL
1138 bool "Enable flow control for 8250 UART"
1139 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1140 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1141
1142config DEBUG_UNCOMPRESS
1143 bool
1144 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1145 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1146 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1147 help
1148 This option influences the normal decompressor output for
1149 multiplatform kernels. Normally, multiplatform kernels disable
1150 decompressor output because it is not possible to know where to
1151 send the decompressor output.
1152
1153 When this option is set, the selected DEBUG_LL output method
1154 will be re-used for normal decompressor output on multiplatform
1155 kernels.
1156
1157
1158config UNCOMPRESS_INCLUDE
1159 string
1160 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1161 PLAT_SAMSUNG || ARCH_EFM32
1162 default "mach/uncompress.h"
1163
1164config EARLY_PRINTK
1165 bool "Early printk"
1166 depends on DEBUG_LL
1167 help
1168 Say Y here if you want to have an early console using the
1169 kernel low-level debugging functions. Add earlyprintk to your
1170 kernel parameters to enable this console.
1171
1172config OC_ETM
1173 bool "On-chip ETM and ETB"
1174 depends on ARM_AMBA
1175 help
1176 Enables the on-chip embedded trace macrocell and embedded trace
1177 buffer driver that will allow you to collect traces of the
1178 kernel code.
1179
1180config ARM_KPROBES_TEST
1181 tristate "Kprobes test module"
1182 depends on KPROBES && MODULES
1183 help
1184 Perform tests of kprobes API and instruction set simulation.
1185
1186config PID_IN_CONTEXTIDR
1187 bool "Write the current PID to the CONTEXTIDR register"
1188 depends on CPU_COPY_V6
1189 help
1190 Enabling this option causes the kernel to write the current PID to
1191 the PROCID field of the CONTEXTIDR register, at the expense of some
1192 additional instructions during context switch. Say Y here only if you
1193 are planning to use hardware trace tools with this kernel.
1194
1195config DEBUG_SET_MODULE_RONX
1196 bool "Set loadable kernel module data as NX and text as RO"
1197 depends on MODULES
1198 ---help---
1199 This option helps catch unintended modifications to loadable
1200 kernel module's text and read-only data. It also prevents execution
1201 of module data. Such protection may interfere with run-time code
1202 patching and dynamic kernel tracing - and they might also protect
1203 against certain classes of kernel exploits.
1204 If in doubt, say "N".
1205
1206endmenu
1# SPDX-License-Identifier: GPL-2.0
2menu "Kernel hacking"
3
4source "lib/Kconfig.debug"
5
6config ARM_PTDUMP_CORE
7 def_bool n
8
9config ARM_PTDUMP_DEBUGFS
10 bool "Export kernel pagetable layout to userspace via debugfs"
11 depends on DEBUG_KERNEL
12 depends on MMU
13 select ARM_PTDUMP_CORE
14 select DEBUG_FS
15 ---help---
16 Say Y here if you want to show the kernel pagetable layout in a
17 debugfs file. This information is only useful for kernel developers
18 who are working in architecture specific areas of the kernel.
19 It is probably not a good idea to enable this feature in a production
20 kernel.
21 If in doubt, say "N"
22
23config DEBUG_WX
24 bool "Warn on W+X mappings at boot"
25 depends on MMU
26 select ARM_PTDUMP_CORE
27 ---help---
28 Generate a warning if any W+X mappings are found at boot.
29
30 This is useful for discovering cases where the kernel is leaving
31 W+X mappings after applying NX, as such mappings are a security risk.
32
33 Look for a message in dmesg output like this:
34
35 arm/mm: Checked W+X mappings: passed, no W+X pages found.
36
37 or like this, if the check failed:
38
39 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
40
41 Note that even if the check fails, your kernel is possibly
42 still fine, as W+X mappings are not a security hole in
43 themselves, what they do is that they make the exploitation
44 of other unfixed kernel bugs easier.
45
46 There is no runtime or memory usage effect of this option
47 once the kernel has booted up - it's a one time check.
48
49 If in doubt, say "Y".
50
51# RMK wants arm kernels compiled with frame pointers or stack unwinding.
52# If you know what you are doing and are willing to live without stack
53# traces, you can get a slightly smaller kernel by setting this option to
54# n, but then RMK will have to kill you ;).
55config FRAME_POINTER
56 bool
57 depends on !THUMB2_KERNEL
58 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
59 help
60 If you say N here, the resulting kernel will be slightly smaller and
61 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
62 when a problem occurs with the kernel, the information that is
63 reported is severely limited.
64
65config ARM_UNWIND
66 bool "Enable stack unwinding support (EXPERIMENTAL)"
67 depends on AEABI
68 default y
69 help
70 This option enables stack unwinding support in the kernel
71 using the information automatically generated by the
72 compiler. The resulting kernel image is slightly bigger but
73 the performance is not affected. Currently, this feature
74 only works with EABI compilers. If unsure say Y.
75
76config OLD_MCOUNT
77 bool
78 depends on FUNCTION_TRACER && FRAME_POINTER
79 default y
80
81config DEBUG_USER
82 bool "Verbose user fault messages"
83 help
84 When a user program crashes due to an exception, the kernel can
85 print a brief message explaining what the problem was. This is
86 sometimes helpful for debugging but serves no purpose on a
87 production system. Most people should say N here.
88
89 In addition, you need to pass user_debug=N on the kernel command
90 line to enable this feature. N consists of the sum of:
91
92 1 - undefined instruction events
93 2 - system calls
94 4 - invalid data aborts
95 8 - SIGSEGV faults
96 16 - SIGBUS faults
97
98# These options are only for real kernel hackers who want to get their hands dirty.
99config DEBUG_LL
100 bool "Kernel low-level debugging functions (read help!)"
101 depends on DEBUG_KERNEL
102 help
103 Say Y here to include definitions of printascii, printch, printhex
104 in the kernel. This is helpful if you are debugging code that
105 executes before the console is initialized.
106
107 Note that selecting this option will limit the kernel to a single
108 UART definition, as specified below. Attempting to boot the kernel
109 image on a different platform *will not work*, so this option should
110 not be enabled for kernels that are intended to be portable.
111
112choice
113 prompt "Kernel low-level debugging port"
114 depends on DEBUG_LL
115
116 config DEBUG_ALPINE_UART0
117 bool "Kernel low-level debugging messages via Alpine UART0"
118 depends on ARCH_ALPINE
119 select DEBUG_UART_8250
120 help
121 Say Y here if you want kernel low-level debugging support
122 on Alpine based platforms.
123
124 config DEBUG_ASM9260_UART
125 bool "Kernel low-level debugging via asm9260 UART"
126 depends on MACH_ASM9260
127 help
128 Say Y here if you want the debug print routines to direct
129 their output to an UART or USART port on asm9260 based
130 machines.
131
132 DEBUG_UART_PHYS | DEBUG_UART_VIRT
133
134 0x80000000 | 0xf0000000 | UART0
135 0x80004000 | 0xf0004000 | UART1
136 0x80008000 | 0xf0008000 | UART2
137 0x8000c000 | 0xf000c000 | UART3
138 0x80010000 | 0xf0010000 | UART4
139 0x80014000 | 0xf0014000 | UART5
140 0x80018000 | 0xf0018000 | UART6
141 0x8001c000 | 0xf001c000 | UART7
142 0x80020000 | 0xf0020000 | UART8
143 0x80024000 | 0xf0024000 | UART9
144
145 config DEBUG_AT91_RM9200_DBGU
146 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
147 select DEBUG_AT91_UART
148 depends on SOC_AT91RM9200 || SOC_AT91SAM9
149 help
150 Say Y here if you want kernel low-level debugging support
151 on the DBGU port of:
152 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
153 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
154
155 config DEBUG_AT91_SAM9263_DBGU
156 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
157 select DEBUG_AT91_UART
158 depends on SOC_AT91SAM9 || SOC_SAMA5D3
159 help
160 Say Y here if you want kernel low-level debugging support
161 on the DBGU port of:
162 at91sam9263, at91sam9g45, at91sam9m10,
163 sama5d3
164
165 config DEBUG_AT91_SAMA5D2_UART1
166 bool "Kernel low-level debugging on SAMA5D2 UART1"
167 select DEBUG_AT91_UART
168 depends on SOC_SAMA5D2
169 help
170 Say Y here if you want kernel low-level debugging support
171 on the UART1 port of sama5d2.
172
173 config DEBUG_AT91_SAMA5D4_USART3
174 bool "Kernel low-level debugging on SAMA5D4 USART3"
175 select DEBUG_AT91_UART
176 depends on SOC_SAMA5D4
177 help
178 Say Y here if you want kernel low-level debugging support
179 on the USART3 port of sama5d4.
180
181 config DEBUG_AT91_SAMV7_USART1
182 bool "Kernel low-level debugging via SAMV7 USART1"
183 select DEBUG_AT91_UART
184 depends on SOC_SAMV7
185 help
186 Say Y here if you want the debug print routines to direct
187 their output to the USART1 port on SAMV7 based
188 machines.
189
190 config DEBUG_BCM2835
191 bool "Kernel low-level debugging on BCM2835 PL011 UART"
192 depends on ARCH_BCM2835 && ARCH_MULTI_V6
193 select DEBUG_UART_PL01X
194
195 config DEBUG_BCM2836
196 bool "Kernel low-level debugging on BCM2836 PL011 UART"
197 depends on ARCH_BCM2835 && ARCH_MULTI_V7
198 select DEBUG_UART_PL01X
199
200 config DEBUG_BCM_5301X
201 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
202 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
203 select DEBUG_UART_8250
204
205 config DEBUG_BCM_HR2
206 bool "Kernel low-level debugging on Hurricane 2 UART2"
207 depends on ARCH_BCM_HR2
208 select DEBUG_UART_8250
209
210 config DEBUG_BCM_KONA_UART
211 bool "Kernel low-level debugging messages via BCM KONA UART"
212 depends on ARCH_BCM_MOBILE
213 select DEBUG_UART_8250
214 help
215 Say Y here if you want kernel low-level debugging support
216 on Broadcom SoC platforms.
217 This low level debug works for Broadcom
218 mobile SoCs in the Kona family of chips (e.g. bcm28155,
219 bcm11351, etc...)
220
221 config DEBUG_BCM63XX_UART
222 bool "Kernel low-level debugging on BCM63XX UART"
223 depends on ARCH_BCM_63XX
224
225 config DEBUG_BERLIN_UART
226 bool "Marvell Berlin SoC Debug UART"
227 depends on ARCH_BERLIN
228 select DEBUG_UART_8250
229 help
230 Say Y here if you want kernel low-level debugging support
231 on Marvell Berlin SoC based platforms.
232
233 config DEBUG_BRCMSTB_UART
234 bool "Use BRCMSTB UART for low-level debug"
235 depends on ARCH_BRCMSTB
236 help
237 Say Y here if you want the debug print routines to direct
238 their output to the first serial port on these devices. The
239 UART physical and virtual address is automatically provided
240 based on the chip identification register value.
241
242 If you have a Broadcom STB chip and would like early print
243 messages to appear over the UART, select this option.
244
245 config DEBUG_CLPS711X_UART1
246 bool "Kernel low-level debugging messages via UART1"
247 depends on ARCH_CLPS711X
248 help
249 Say Y here if you want the debug print routines to direct
250 their output to the first serial port on these devices.
251
252 config DEBUG_CLPS711X_UART2
253 bool "Kernel low-level debugging messages via UART2"
254 depends on ARCH_CLPS711X
255 help
256 Say Y here if you want the debug print routines to direct
257 their output to the second serial port on these devices.
258
259 config DEBUG_CNS3XXX
260 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
261 depends on ARCH_CNS3XXX
262 select DEBUG_UART_8250
263 help
264 Say Y here if you want the debug print routines to direct
265 their output to the CNS3xxx UART0.
266
267 config DEBUG_DAVINCI_DA8XX_UART1
268 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
269 depends on ARCH_DAVINCI_DA8XX
270 select DEBUG_UART_8250
271 help
272 Say Y here if you want the debug print routines to direct
273 their output to UART1 serial port on DaVinci DA8XX devices.
274
275 config DEBUG_DAVINCI_DA8XX_UART2
276 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
277 depends on ARCH_DAVINCI_DA8XX
278 select DEBUG_UART_8250
279 help
280 Say Y here if you want the debug print routines to direct
281 their output to UART2 serial port on DaVinci DA8XX devices.
282
283 config DEBUG_DAVINCI_DMx_UART0
284 bool "Kernel low-level debugging on DaVinci DMx using UART0"
285 depends on ARCH_DAVINCI_DMx
286 select DEBUG_UART_8250
287 help
288 Say Y here if you want the debug print routines to direct
289 their output to UART0 serial port on DaVinci DMx devices.
290
291 config DEBUG_DC21285_PORT
292 bool "Kernel low-level debugging messages via footbridge serial port"
293 depends on FOOTBRIDGE
294 help
295 Say Y here if you want the debug print routines to direct
296 their output to the serial port in the DC21285 (Footbridge).
297
298 config DEBUG_DIGICOLOR_UA0
299 bool "Kernel low-level debugging messages via Digicolor UA0"
300 depends on ARCH_DIGICOLOR
301 help
302 Say Y here if you want the debug print routines to direct
303 their output to the UA0 serial port in the CX92755.
304
305 config DEBUG_EP93XX
306 bool "Kernel low-level debugging messages via ep93xx UART"
307 depends on ARCH_EP93XX
308 select DEBUG_UART_PL01X
309 help
310 Say Y here if you want kernel low-level debugging support
311 on Cirrus Logic EP93xx based platforms.
312
313 config DEBUG_FOOTBRIDGE_COM1
314 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
315 depends on FOOTBRIDGE
316 select DEBUG_UART_8250
317 help
318 Say Y here if you want the debug print routines to direct
319 their output to the 8250 at PCI COM1.
320
321 config DEBUG_GEMINI
322 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
323 depends on ARCH_GEMINI
324 select DEBUG_UART_8250
325 help
326 Say Y here if you want kernel low-level debugging support
327 on Cortina Gemini based platforms.
328
329 config DEBUG_HI3620_UART
330 bool "Hisilicon HI3620 Debug UART"
331 depends on ARCH_HI3xxx
332 select DEBUG_UART_PL01X
333 help
334 Say Y here if you want kernel low-level debugging support
335 on HI3620 UART.
336
337 config DEBUG_HIGHBANK_UART
338 bool "Kernel low-level debugging messages via Highbank UART"
339 depends on ARCH_HIGHBANK
340 select DEBUG_UART_PL01X
341 help
342 Say Y here if you want the debug print routines to direct
343 their output to the UART on Highbank based devices.
344
345 config DEBUG_HIP01_UART
346 bool "Hisilicon Hip01 Debug UART"
347 depends on ARCH_HIP01
348 select DEBUG_UART_8250
349 help
350 Say Y here if you want kernel low-level debugging support
351 on HIP01 UART.
352
353 config DEBUG_HIP04_UART
354 bool "Hisilicon HiP04 Debug UART"
355 depends on ARCH_HIP04
356 select DEBUG_UART_8250
357 help
358 Say Y here if you want kernel low-level debugging support
359 on HIP04 UART.
360
361 config DEBUG_HIX5HD2_UART
362 bool "Hisilicon Hix5hd2 Debug UART"
363 depends on ARCH_HIX5HD2
364 select DEBUG_UART_PL01X
365 help
366 Say Y here if you want kernel low-level debugging support
367 on Hix5hd2 UART.
368
369 config DEBUG_IMX1_UART
370 bool "i.MX1 Debug UART"
371 depends on SOC_IMX1
372 help
373 Say Y here if you want kernel low-level debugging support
374 on i.MX1.
375
376 config DEBUG_IMX23_UART
377 bool "i.MX23 Debug UART"
378 depends on SOC_IMX23
379 select DEBUG_UART_PL01X
380 help
381 Say Y here if you want kernel low-level debugging support
382 on i.MX23.
383
384 config DEBUG_IMX25_UART
385 bool "i.MX25 Debug UART"
386 depends on SOC_IMX25
387 help
388 Say Y here if you want kernel low-level debugging support
389 on i.MX25.
390
391 config DEBUG_IMX21_IMX27_UART
392 bool "i.MX21 and i.MX27 Debug UART"
393 depends on SOC_IMX21 || SOC_IMX27
394 help
395 Say Y here if you want kernel low-level debugging support
396 on i.MX21 or i.MX27.
397
398 config DEBUG_IMX28_UART
399 bool "i.MX28 Debug UART"
400 depends on SOC_IMX28
401 select DEBUG_UART_PL01X
402 help
403 Say Y here if you want kernel low-level debugging support
404 on i.MX28.
405
406 config DEBUG_IMX31_UART
407 bool "i.MX31 Debug UART"
408 depends on SOC_IMX31
409 help
410 Say Y here if you want kernel low-level debugging support
411 on i.MX31.
412
413 config DEBUG_IMX35_UART
414 bool "i.MX35 Debug UART"
415 depends on SOC_IMX35
416 help
417 Say Y here if you want kernel low-level debugging support
418 on i.MX35.
419
420 config DEBUG_IMX50_UART
421 bool "i.MX50 Debug UART"
422 depends on SOC_IMX50
423 help
424 Say Y here if you want kernel low-level debugging support
425 on i.MX50.
426
427 config DEBUG_IMX51_UART
428 bool "i.MX51 Debug UART"
429 depends on SOC_IMX51
430 help
431 Say Y here if you want kernel low-level debugging support
432 on i.MX51.
433
434 config DEBUG_IMX53_UART
435 bool "i.MX53 Debug UART"
436 depends on SOC_IMX53
437 help
438 Say Y here if you want kernel low-level debugging support
439 on i.MX53.
440
441 config DEBUG_IMX6Q_UART
442 bool "i.MX6Q/DL Debug UART"
443 depends on SOC_IMX6Q
444 help
445 Say Y here if you want kernel low-level debugging support
446 on i.MX6Q/DL.
447
448 config DEBUG_IMX6SL_UART
449 bool "i.MX6SL Debug UART"
450 depends on SOC_IMX6SL
451 help
452 Say Y here if you want kernel low-level debugging support
453 on i.MX6SL.
454
455 config DEBUG_IMX6SX_UART
456 bool "i.MX6SX Debug UART"
457 depends on SOC_IMX6SX
458 help
459 Say Y here if you want kernel low-level debugging support
460 on i.MX6SX.
461
462 config DEBUG_IMX6UL_UART
463 bool "i.MX6UL Debug UART"
464 depends on SOC_IMX6UL
465 help
466 Say Y here if you want kernel low-level debugging support
467 on i.MX6UL.
468
469 config DEBUG_IMX7D_UART
470 bool "i.MX7D Debug UART"
471 depends on SOC_IMX7D
472 help
473 Say Y here if you want kernel low-level debugging support
474 on i.MX7D.
475
476 config DEBUG_INTEGRATOR
477 bool "Kernel low-level debugging messages via ARM Integrator UART"
478 depends on ARCH_INTEGRATOR
479 select DEBUG_UART_PL01X
480 help
481 Say Y here if you want kernel low-level debugging support
482 on ARM Integrator platforms.
483
484 config DEBUG_KEYSTONE_UART0
485 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
486 depends on ARCH_KEYSTONE
487 select DEBUG_UART_8250
488 help
489 Say Y here if you want the debug print routines to direct
490 their output to UART0 serial port on KEYSTONE2 devices.
491
492 config DEBUG_KEYSTONE_UART1
493 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
494 depends on ARCH_KEYSTONE
495 select DEBUG_UART_8250
496 help
497 Say Y here if you want the debug print routines to direct
498 their output to UART1 serial port on KEYSTONE2 devices.
499
500 config DEBUG_KS8695_UART
501 bool "KS8695 Debug UART"
502 depends on ARCH_KS8695
503 help
504 Say Y here if you want kernel low-level debugging support
505 on KS8695.
506
507 config DEBUG_LPC18XX_UART0
508 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
509 depends on ARCH_LPC18XX
510 select DEBUG_UART_8250
511 help
512 Say Y here if you want kernel low-level debugging support
513 on NXP LPC18xx/43xx UART0.
514
515 config DEBUG_LPC32XX
516 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
517 depends on ARCH_LPC32XX
518 select DEBUG_UART_8250
519 help
520 Say Y here if you want kernel low-level debugging support
521 on NXP LPC32xx based platforms.
522
523 config DEBUG_MESON_UARTAO
524 bool "Kernel low-level debugging via Meson6 UARTAO"
525 depends on ARCH_MESON
526 help
527 Say Y here if you want kernel low-lever debugging support
528 on Amlogic Meson6 based platforms on the UARTAO.
529
530 config DEBUG_MMP_UART2
531 bool "Kernel low-level debugging message via MMP UART2"
532 depends on ARCH_MMP
533 select DEBUG_UART_8250
534 help
535 Say Y here if you want kernel low-level debugging support
536 on MMP UART2.
537
538 config DEBUG_MMP_UART3
539 bool "Kernel low-level debugging message via MMP UART3"
540 depends on ARCH_MMP
541 select DEBUG_UART_8250
542 help
543 Say Y here if you want kernel low-level debugging support
544 on MMP UART3.
545
546 config DEBUG_MVEBU_UART0
547 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
548 depends on ARCH_MVEBU
549 depends on ARCH_MVEBU && CPU_V7
550 select DEBUG_UART_8250
551 help
552 Say Y here if you want kernel low-level debugging support
553 on MVEBU based platforms on UART0.
554
555 This option should be used with the old bootloaders
556 that left the internal registers mapped at
557 0xd0000000. As of today, this is the case on
558 platforms such as the Globalscale Mirabox or the
559 Plathome OpenBlocks AX3, when using the original
560 bootloader.
561
562 This option will not work on older Marvell platforms
563 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
564 the "new bootloader" variant.
565
566 If the wrong DEBUG_MVEBU_UART* option is selected,
567 when u-boot hands over to the kernel, the system
568 silently crashes, with no serial output at all.
569
570 config DEBUG_MVEBU_UART0_ALTERNATE
571 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
572 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
573 select DEBUG_UART_8250
574 help
575 Say Y here if you want kernel low-level debugging support
576 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
577 Kirkwood, Dove, MV78xx0, Orion5x).
578
579
580 This option should be used with the new bootloaders
581 that remap the internal registers at 0xf1000000.
582
583 If the wrong DEBUG_MVEBU_UART* option is selected,
584 when u-boot hands over to the kernel, the system
585 silently crashes, with no serial output at all.
586
587 config DEBUG_MVEBU_UART1_ALTERNATE
588 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
589 depends on ARCH_MVEBU
590 select DEBUG_UART_8250
591 help
592 Say Y here if you want kernel low-level debugging support
593 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
594 Kirkwood, Dove, MV78xx0, Orion5x).
595
596 This option should be used with the new bootloaders
597 that remap the internal registers at 0xf1000000.
598 All of the older (pre Armada XP/370) platforms also use
599 this address, regardless of the boot loader version.
600
601 If the wrong DEBUG_MVEBU_UART* option is selected,
602 when u-boot hands over to the kernel, the system
603 silently crashes, with no serial output at all.
604
605 config DEBUG_MT6589_UART0
606 bool "Mediatek mt6589 UART0"
607 depends on ARCH_MEDIATEK
608 select DEBUG_UART_8250
609 help
610 Say Y here if you want kernel low-level debugging support
611 for Mediatek mt6589 based platforms on UART0.
612
613 config DEBUG_MT8127_UART0
614 bool "Mediatek mt8127/mt6592 UART0"
615 depends on ARCH_MEDIATEK
616 select DEBUG_UART_8250
617 help
618 Say Y here if you want kernel low-level debugging support
619 for Mediatek mt8127 based platforms on UART0.
620
621 config DEBUG_MT8135_UART3
622 bool "Mediatek mt8135 UART3"
623 depends on ARCH_MEDIATEK
624 select DEBUG_UART_8250
625 help
626 Say Y here if you want kernel low-level debugging support
627 for Mediatek mt8135 based platforms on UART3.
628
629 config DEBUG_NETX_UART
630 bool "Kernel low-level debugging messages via NetX UART"
631 depends on ARCH_NETX
632 help
633 Say Y here if you want kernel low-level debugging support
634 on Hilscher NetX based platforms.
635
636 config DEBUG_NOMADIK_UART
637 bool "Kernel low-level debugging messages via NOMADIK UART"
638 depends on ARCH_NOMADIK
639 select DEBUG_UART_PL01X
640 help
641 Say Y here if you want kernel low-level debugging support
642 on NOMADIK based platforms.
643
644 config DEBUG_NSPIRE_CLASSIC_UART
645 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
646 depends on ARCH_NSPIRE
647 select DEBUG_UART_8250
648 help
649 Say Y here if you want kernel low-level debugging support
650 on TI-NSPIRE classic models.
651
652 config DEBUG_NSPIRE_CX_UART
653 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
654 depends on ARCH_NSPIRE
655 select DEBUG_UART_PL01X
656 help
657 Say Y here if you want kernel low-level debugging support
658 on TI-NSPIRE CX models.
659
660 config DEBUG_OMAP1UART1
661 bool "Kernel low-level debugging via OMAP1 UART1"
662 depends on ARCH_OMAP1
663 select DEBUG_UART_8250
664 help
665 Say Y here if you want kernel low-level debugging support
666 on OMAP1 based platforms (except OMAP730) on the UART1.
667
668 config DEBUG_OMAP1UART2
669 bool "Kernel low-level debugging via OMAP1 UART2"
670 depends on ARCH_OMAP1
671 select DEBUG_UART_8250
672 help
673 Say Y here if you want kernel low-level debugging support
674 on OMAP1 based platforms (except OMAP730) on the UART2.
675
676 config DEBUG_OMAP1UART3
677 bool "Kernel low-level debugging via OMAP1 UART3"
678 depends on ARCH_OMAP1
679 select DEBUG_UART_8250
680 help
681 Say Y here if you want kernel low-level debugging support
682 on OMAP1 based platforms (except OMAP730) on the UART3.
683
684 config DEBUG_OMAP2UART1
685 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
686 depends on ARCH_OMAP2PLUS
687 select DEBUG_UART_8250
688 help
689 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
690 omap3 torpedo and 3530 lv som.
691
692 config DEBUG_OMAP2UART2
693 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
694 depends on ARCH_OMAP2PLUS
695 select DEBUG_UART_8250
696
697 config DEBUG_OMAP2UART3
698 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
699 depends on ARCH_OMAP2PLUS
700 select DEBUG_UART_8250
701
702 config DEBUG_OMAP3UART3
703 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
704 depends on ARCH_OMAP2PLUS
705 select DEBUG_UART_8250
706 help
707 This covers at least cm_t3x, beagle, crane, devkit8000,
708 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
709 and 3517evm.
710
711 config DEBUG_OMAP4UART3
712 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
713 depends on ARCH_OMAP2PLUS
714 select DEBUG_UART_8250
715
716 config DEBUG_OMAP3UART4
717 bool "Kernel low-level debugging messages via OMAP36XX UART4"
718 depends on ARCH_OMAP2PLUS
719 select DEBUG_UART_8250
720
721 config DEBUG_OMAP4UART4
722 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
723 depends on ARCH_OMAP2PLUS
724 select DEBUG_UART_8250
725
726 config DEBUG_OMAP7XXUART1
727 bool "Kernel low-level debugging via OMAP730 UART1"
728 depends on ARCH_OMAP730
729 select DEBUG_UART_8250
730 help
731 Say Y here if you want kernel low-level debugging support
732 on OMAP730 based platforms on the UART1.
733
734 config DEBUG_OMAP7XXUART2
735 bool "Kernel low-level debugging via OMAP730 UART2"
736 depends on ARCH_OMAP730
737 select DEBUG_UART_8250
738 help
739 Say Y here if you want kernel low-level debugging support
740 on OMAP730 based platforms on the UART2.
741
742 config DEBUG_OMAP7XXUART3
743 bool "Kernel low-level debugging via OMAP730 UART3"
744 depends on ARCH_OMAP730
745 select DEBUG_UART_8250
746 help
747 Say Y here if you want kernel low-level debugging support
748 on OMAP730 based platforms on the UART3.
749
750 config DEBUG_TI81XXUART1
751 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
752 depends on ARCH_OMAP2PLUS
753 select DEBUG_UART_8250
754
755 config DEBUG_TI81XXUART2
756 bool "Kernel low-level debugging messages via TI81XX UART2"
757 depends on ARCH_OMAP2PLUS
758 select DEBUG_UART_8250
759
760 config DEBUG_TI81XXUART3
761 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
762 depends on ARCH_OMAP2PLUS
763 select DEBUG_UART_8250
764
765 config DEBUG_AM33XXUART1
766 bool "Kernel low-level debugging messages via AM33XX UART1"
767 depends on ARCH_OMAP2PLUS
768 select DEBUG_UART_8250
769
770 config DEBUG_ZOOM_UART
771 bool "Kernel low-level debugging messages via Zoom2/3 UART"
772 depends on ARCH_OMAP2PLUS
773 select DEBUG_OMAP2PLUS_UART
774
775 config DEBUG_PICOXCELL_UART
776 depends on ARCH_PICOXCELL
777 bool "Use PicoXcell UART for low-level debug"
778 select DEBUG_UART_8250
779 help
780 Say Y here if you want kernel low-level debugging support
781 on PicoXcell based platforms.
782
783 config DEBUG_PXA_UART1
784 depends on ARCH_PXA
785 bool "Use PXA UART1 for low-level debug"
786 select DEBUG_UART_8250
787 help
788 Say Y here if you want kernel low-level debugging support
789 on PXA UART1.
790
791 config DEBUG_QCOM_UARTDM
792 bool "Kernel low-level debugging messages via QCOM UARTDM"
793 depends on ARCH_QCOM
794 help
795 Say Y here if you want the debug print routines to direct
796 their output to the serial port on Qualcomm devices.
797
798 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
799 APQ8064 0x16640000 0xf0040000
800 APQ8084 0xf995e000 0xfa75e000
801 IPQ4019 0x078af000 0xf78af000
802 MSM8X60 0x19c40000 0xf0040000
803 MSM8960 0x16440000 0xf0040000
804 MSM8974 0xf991e000 0xfa71e000
805
806 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
807 options based on your needs.
808
809 config DEBUG_REALVIEW_STD_PORT
810 bool "RealView Default UART"
811 depends on ARCH_REALVIEW
812 select DEBUG_UART_PL01X
813 help
814 Say Y here if you want the debug print routines to direct
815 their output to the serial port on RealView EB, PB11MP, PBA8
816 and PBX platforms.
817
818 config DEBUG_REALVIEW_PB1176_PORT
819 bool "RealView PB1176 UART"
820 depends on MACH_REALVIEW_PB1176
821 select DEBUG_UART_PL01X
822 help
823 Say Y here if you want the debug print routines to direct
824 their output to the standard serial port on the RealView
825 PB1176 platform.
826
827 config DEBUG_RV1108_UART0
828 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
829 depends on ARCH_ROCKCHIP
830 select DEBUG_UART_8250
831 help
832 Say Y here if you want kernel low-level debugging support
833 on Rockchip RV1108 based platforms.
834
835 config DEBUG_RV1108_UART1
836 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
837 depends on ARCH_ROCKCHIP
838 select DEBUG_UART_8250
839 help
840 Say Y here if you want kernel low-level debugging support
841 on Rockchip RV1108 based platforms.
842
843 config DEBUG_RV1108_UART2
844 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
845 depends on ARCH_ROCKCHIP
846 select DEBUG_UART_8250
847 help
848 Say Y here if you want kernel low-level debugging support
849 on Rockchip RV1108 based platforms.
850
851 config DEBUG_RK29_UART0
852 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
853 depends on ARCH_ROCKCHIP
854 select DEBUG_UART_8250
855 help
856 Say Y here if you want kernel low-level debugging support
857 on Rockchip based platforms.
858
859 config DEBUG_RK29_UART1
860 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
861 depends on ARCH_ROCKCHIP
862 select DEBUG_UART_8250
863 help
864 Say Y here if you want kernel low-level debugging support
865 on Rockchip based platforms.
866
867 config DEBUG_RK29_UART2
868 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
869 depends on ARCH_ROCKCHIP
870 select DEBUG_UART_8250
871 help
872 Say Y here if you want kernel low-level debugging support
873 on Rockchip based platforms.
874
875 config DEBUG_RK3X_UART0
876 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
877 depends on ARCH_ROCKCHIP
878 select DEBUG_UART_8250
879 help
880 Say Y here if you want kernel low-level debugging support
881 on Rockchip based platforms.
882
883 config DEBUG_RK3X_UART1
884 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
885 depends on ARCH_ROCKCHIP
886 select DEBUG_UART_8250
887 help
888 Say Y here if you want kernel low-level debugging support
889 on Rockchip based platforms.
890
891 config DEBUG_RK3X_UART2
892 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
893 depends on ARCH_ROCKCHIP
894 select DEBUG_UART_8250
895 help
896 Say Y here if you want kernel low-level debugging support
897 on Rockchip based platforms.
898
899 config DEBUG_RK3X_UART3
900 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
901 depends on ARCH_ROCKCHIP
902 select DEBUG_UART_8250
903 help
904 Say Y here if you want kernel low-level debugging support
905 on Rockchip based platforms.
906
907 config DEBUG_RK32_UART2
908 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
909 depends on ARCH_ROCKCHIP
910 select DEBUG_UART_8250
911 help
912 Say Y here if you want kernel low-level debugging support
913 on Rockchip RK32xx based platforms.
914
915 config DEBUG_R7S72100_SCIF2
916 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
917 depends on ARCH_R7S72100
918 help
919 Say Y here if you want kernel low-level debugging support
920 via SCIF2 on Renesas RZ/A1H (R7S72100).
921
922 config DEBUG_RCAR_GEN1_SCIF0
923 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
924 depends on ARCH_R8A7778
925 help
926 Say Y here if you want kernel low-level debugging support
927 via SCIF0 on Renesas R-Car M1A (R8A7778).
928
929 config DEBUG_RCAR_GEN1_SCIF2
930 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
931 depends on ARCH_R8A7779
932 help
933 Say Y here if you want kernel low-level debugging support
934 via SCIF2 on Renesas R-Car H1 (R8A7779).
935
936 config DEBUG_RCAR_GEN2_SCIF0
937 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
938 depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \
939 ARCH_R8A7792 || ARCH_R8A7793
940 help
941 Say Y here if you want kernel low-level debugging support
942 via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790),
943 M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
944
945 config DEBUG_RCAR_GEN2_SCIF2
946 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
947 depends on ARCH_R8A7794
948 help
949 Say Y here if you want kernel low-level debugging support
950 via SCIF2 on Renesas R-Car E2 (R8A7794).
951
952 config DEBUG_RCAR_GEN2_SCIF4
953 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
954 depends on ARCH_R8A7745
955 help
956 Say Y here if you want kernel low-level debugging support
957 via SCIF4 on Renesas RZ/G1E (R8A7745).
958
959 config DEBUG_RMOBILE_SCIFA0
960 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
961 depends on ARCH_R8A73A4
962 help
963 Say Y here if you want kernel low-level debugging support
964 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
965
966 config DEBUG_RMOBILE_SCIFA1
967 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
968 depends on ARCH_R8A7740
969 help
970 Say Y here if you want kernel low-level debugging support
971 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
972
973 config DEBUG_RMOBILE_SCIFA4
974 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
975 depends on ARCH_SH73A0
976 help
977 Say Y here if you want kernel low-level debugging support
978 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
979
980 config DEBUG_S3C_UART0
981 depends on PLAT_SAMSUNG
982 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
983 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
984 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
985 select DEBUG_S5PV210_UART if ARCH_S5PV210
986 bool "Use Samsung S3C UART 0 for low-level debug"
987 help
988 Say Y here if you want the debug print routines to direct
989 their output to UART 0. The port must have been initialised
990 by the boot-loader before use.
991
992 config DEBUG_S3C_UART1
993 depends on PLAT_SAMSUNG
994 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
995 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
996 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
997 select DEBUG_S5PV210_UART if ARCH_S5PV210
998 bool "Use Samsung S3C UART 1 for low-level debug"
999 help
1000 Say Y here if you want the debug print routines to direct
1001 their output to UART 1. The port must have been initialised
1002 by the boot-loader before use.
1003
1004 config DEBUG_S3C_UART2
1005 depends on PLAT_SAMSUNG
1006 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1007 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1008 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1009 select DEBUG_S5PV210_UART if ARCH_S5PV210
1010 bool "Use Samsung S3C UART 2 for low-level debug"
1011 help
1012 Say Y here if you want the debug print routines to direct
1013 their output to UART 2. The port must have been initialised
1014 by the boot-loader before use.
1015
1016 config DEBUG_S3C_UART3
1017 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
1018 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1019 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1020 select DEBUG_S5PV210_UART if ARCH_S5PV210
1021 bool "Use Samsung S3C UART 3 for low-level debug"
1022 help
1023 Say Y here if you want the debug print routines to direct
1024 their output to UART 3. The port must have been initialised
1025 by the boot-loader before use.
1026
1027 config DEBUG_S3C2410_UART0
1028 depends on ARCH_S3C24XX
1029 select DEBUG_S3C2410_UART
1030 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1031 help
1032 Say Y here if you want the debug print routines to direct
1033 their output to UART 0. The port must have been initialised
1034 by the boot-loader before use.
1035
1036 config DEBUG_S3C2410_UART1
1037 depends on ARCH_S3C24XX
1038 select DEBUG_S3C2410_UART
1039 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1040 help
1041 Say Y here if you want the debug print routines to direct
1042 their output to UART 1. The port must have been initialised
1043 by the boot-loader before use.
1044
1045 config DEBUG_S3C2410_UART2
1046 depends on ARCH_S3C24XX
1047 select DEBUG_S3C2410_UART
1048 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1049 help
1050 Say Y here if you want the debug print routines to direct
1051 their output to UART 2. The port must have been initialised
1052 by the boot-loader before use.
1053
1054 config DEBUG_SA1100
1055 depends on ARCH_SA1100
1056 bool "Use SA1100 UARTs for low-level debug"
1057 help
1058 Say Y here if you want kernel low-level debugging support
1059 on SA-11x0 UART ports. The kernel will check for the first
1060 enabled UART in a sequence 3-1-2.
1061
1062 config DEBUG_SOCFPGA_UART0
1063 depends on ARCH_SOCFPGA
1064 bool "Use SOCFPGA UART0 for low-level debug"
1065 select DEBUG_UART_8250
1066 help
1067 Say Y here if you want kernel low-level debugging support
1068 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1069
1070 config DEBUG_SOCFPGA_UART1
1071 depends on ARCH_SOCFPGA
1072 bool "Use SOCFPGA UART1 for low-level debug"
1073 select DEBUG_UART_8250
1074 help
1075 Say Y here if you want kernel low-level debugging support
1076 on SOCFPGA(Arria 10) based platforms.
1077
1078
1079 config DEBUG_SUN9I_UART0
1080 bool "Kernel low-level debugging messages via sun9i UART0"
1081 depends on MACH_SUN9I
1082 select DEBUG_UART_8250
1083 help
1084 Say Y here if you want kernel low-level debugging support
1085 on Allwinner A80 based platforms on the UART0.
1086
1087 config DEBUG_SUNXI_UART0
1088 bool "Kernel low-level debugging messages via sunXi UART0"
1089 depends on ARCH_SUNXI
1090 select DEBUG_UART_8250
1091 help
1092 Say Y here if you want kernel low-level debugging support
1093 on Allwinner A1X based platforms on the UART0.
1094
1095 config DEBUG_SUNXI_UART1
1096 bool "Kernel low-level debugging messages via sunXi UART1"
1097 depends on ARCH_SUNXI
1098 select DEBUG_UART_8250
1099 help
1100 Say Y here if you want kernel low-level debugging support
1101 on Allwinner A1X based platforms on the UART1.
1102
1103 config DEBUG_SUNXI_R_UART
1104 bool "Kernel low-level debugging messages via sunXi R_UART"
1105 depends on MACH_SUN6I || MACH_SUN8I
1106 select DEBUG_UART_8250
1107 help
1108 Say Y here if you want kernel low-level debugging support
1109 on Allwinner A31/A23 based platforms on the R_UART.
1110
1111 config DEBUG_SIRFPRIMA2_UART1
1112 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1113 depends on ARCH_PRIMA2
1114 select DEBUG_SIRFSOC_UART
1115 help
1116 Say Y here if you want the debug print routines to direct
1117 their output to the uart1 port on SiRFprimaII devices.
1118
1119 config DEBUG_SIRFATLAS7_UART0
1120 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1121 depends on ARCH_ATLAS7
1122 select DEBUG_SIRFSOC_UART
1123 help
1124 Say Y here if you want the debug print routines to direct
1125 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1126 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1127 debug port can be very useful.
1128
1129 config DEBUG_SIRFATLAS7_UART1
1130 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1131 depends on ARCH_ATLAS7
1132 select DEBUG_SIRFSOC_UART
1133 help
1134 Say Y here if you want the debug print routines to direct
1135 their output to the uart1 port on SiRFATLAS7 devices.
1136
1137 config DEBUG_SPEAR3XX
1138 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1139 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1140 select DEBUG_UART_PL01X
1141 help
1142 Say Y here if you want kernel low-level debugging support
1143 on ST SPEAr based platforms.
1144
1145 config DEBUG_SPEAR13XX
1146 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1147 depends on ARCH_SPEAR13XX
1148 select DEBUG_UART_PL01X
1149 help
1150 Say Y here if you want kernel low-level debugging support
1151 on ST SPEAr13xx based platforms.
1152
1153 config STIH41X_DEBUG_ASC2
1154 bool "Use StiH415/416 ASC2 UART for low-level debug"
1155 depends on ARCH_STI
1156 select DEBUG_STI_UART
1157 help
1158 Say Y here if you want kernel low-level debugging support
1159 on STiH415/416 based platforms like b2000, which has
1160 default UART wired up to ASC2.
1161
1162 If unsure, say N.
1163
1164 config STIH41X_DEBUG_SBC_ASC1
1165 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1166 depends on ARCH_STI
1167 select DEBUG_STI_UART
1168 help
1169 Say Y here if you want kernel low-level debugging support
1170 on STiH415/416 based platforms like b2020. which has
1171 default UART wired up to SBC ASC1.
1172
1173 If unsure, say N.
1174
1175 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1176 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1177 depends on ARCH_TEGRA
1178 select DEBUG_TEGRA_UART
1179 help
1180 Automatically determines which UART to use for low-level
1181 debug based on the ODMDATA value. This value is part of
1182 the BCT, and is written to the boot memory device using
1183 nvflash, or other flashing tool. When bits 19:18 are 3,
1184 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1185 are UART A/B/C/D/E.
1186
1187 config TEGRA_DEBUG_UARTA
1188 bool "Kernel low-level debugging messages via Tegra UART A"
1189 depends on ARCH_TEGRA
1190 select DEBUG_TEGRA_UART
1191 help
1192 Say Y here if you want kernel low-level debugging support
1193 on Tegra based platforms.
1194
1195 config TEGRA_DEBUG_UARTB
1196 bool "Kernel low-level debugging messages via Tegra UART B"
1197 depends on ARCH_TEGRA
1198 select DEBUG_TEGRA_UART
1199 help
1200 Say Y here if you want kernel low-level debugging support
1201 on Tegra based platforms.
1202
1203 config TEGRA_DEBUG_UARTC
1204 bool "Kernel low-level debugging messages via Tegra UART C"
1205 depends on ARCH_TEGRA
1206 select DEBUG_TEGRA_UART
1207 help
1208 Say Y here if you want kernel low-level debugging support
1209 on Tegra based platforms.
1210
1211 config TEGRA_DEBUG_UARTD
1212 bool "Kernel low-level debugging messages via Tegra UART D"
1213 depends on ARCH_TEGRA
1214 select DEBUG_TEGRA_UART
1215 help
1216 Say Y here if you want kernel low-level debugging support
1217 on Tegra based platforms.
1218
1219 config TEGRA_DEBUG_UARTE
1220 bool "Kernel low-level debugging messages via Tegra UART E"
1221 depends on ARCH_TEGRA
1222 select DEBUG_TEGRA_UART
1223 help
1224 Say Y here if you want kernel low-level debugging support
1225 on Tegra based platforms.
1226
1227 config DEBUG_U300_UART
1228 bool "Kernel low-level debugging messages via U300 UART0"
1229 depends on ARCH_U300
1230 select DEBUG_UART_PL01X
1231 help
1232 Say Y here if you want the debug print routines to direct
1233 their output to the uart port on U300 devices.
1234
1235 config DEBUG_UX500_UART
1236 depends on ARCH_U8500
1237 bool "Use Ux500 UART for low-level debug"
1238 help
1239 Say Y here if you want kernel low-level debugging support
1240 on Ux500 based platforms.
1241
1242 config DEBUG_VERSATILE
1243 bool "Kernel low-level debugging messages via ARM Versatile UART"
1244 depends on ARCH_VERSATILE
1245 select DEBUG_UART_PL01X
1246 help
1247 Say Y here if you want kernel low-level debugging support
1248 on ARM Versatile platforms.
1249
1250 config DEBUG_VEXPRESS_UART0_DETECT
1251 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1252 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1253 help
1254 This option enables a simple heuristic which tries to determine
1255 the motherboard's memory map variant (original or RS1) and then
1256 choose the relevant UART0 base address.
1257
1258 Note that this will only work with standard A-class core tiles,
1259 and may fail with non-standard SMM or custom software models.
1260
1261 config DEBUG_VEXPRESS_UART0_CA9
1262 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1263 depends on ARCH_VEXPRESS
1264 select DEBUG_UART_PL01X
1265 help
1266 This option selects UART0 at 0x10009000. Except for custom models,
1267 this applies only to the V2P-CA9 tile.
1268
1269 config DEBUG_VEXPRESS_UART0_RS1
1270 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1271 depends on ARCH_VEXPRESS
1272 select DEBUG_UART_PL01X
1273 help
1274 This option selects UART0 at 0x1c090000. This applies to most
1275 of the tiles using the RS1 memory map, including all new A-class
1276 core tiles, FPGA-based SMMs and software models.
1277
1278 config DEBUG_VEXPRESS_UART0_CRX
1279 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1280 depends on ARCH_VEXPRESS && !MMU
1281 select DEBUG_UART_PL01X
1282 help
1283 This option selects UART0 at 0xb0090000. This is appropriate for
1284 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1285
1286 config DEBUG_VF_UART
1287 bool "Vybrid UART"
1288 depends on SOC_VF610
1289 help
1290 Say Y here if you want kernel low-level debugging support
1291 on Vybrid based platforms.
1292
1293 config DEBUG_VT8500_UART0
1294 bool "Use UART0 on VIA/Wondermedia SoCs"
1295 depends on ARCH_VT8500
1296 help
1297 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1298 devices, including VT8500, WM8505, WM8650 and WM8850.
1299
1300 config DEBUG_ZTE_ZX
1301 bool "Use ZTE ZX UART"
1302 select DEBUG_UART_PL01X
1303 depends on ARCH_ZX
1304 help
1305 Say Y here if you are enabling ZTE ZX296702 SOC and need
1306 debug uart support.
1307
1308 This option is preferred over the platform specific
1309 options; the platform specific options are deprecated
1310 and will be soon removed.
1311
1312 config DEBUG_ZYNQ_UART0
1313 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1314 depends on ARCH_ZYNQ
1315 help
1316 Say Y here if you want the debug print routines to direct
1317 their output to UART0 on the Zynq platform.
1318
1319 config DEBUG_ZYNQ_UART1
1320 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1321 depends on ARCH_ZYNQ
1322 help
1323 Say Y here if you want the debug print routines to direct
1324 their output to UART1 on the Zynq platform.
1325
1326 If you have a ZC702 board and want early boot messages to
1327 appear on the USB serial adaptor, select this option.
1328
1329 config DEBUG_ICEDCC
1330 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1331 help
1332 Say Y here if you want the debug print routines to direct
1333 their output to the EmbeddedICE macrocell's DCC channel using
1334 co-processor 14. This is known to work on the ARM9 style ICE
1335 channel and on the XScale with the PEEDI.
1336
1337 Note that the system will appear to hang during boot if there
1338 is nothing connected to read from the DCC.
1339
1340 config DEBUG_SEMIHOSTING
1341 bool "Kernel low-level debug output via semihosting I/O"
1342 help
1343 Semihosting enables code running on an ARM target to use
1344 the I/O facilities on a host debugger/emulator through a
1345 simple SVC call. The host debugger or emulator must have
1346 semihosting enabled for the special svc call to be trapped
1347 otherwise the kernel will crash.
1348
1349 This is known to work with OpenOCD, as well as
1350 ARM's Fast Models, or any other controlling environment
1351 that implements semihosting.
1352
1353 For more details about semihosting, please see
1354 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1355
1356 config DEBUG_LL_UART_8250
1357 bool "Kernel low-level debugging via 8250 UART"
1358 help
1359 Say Y here if you wish the debug print routes to direct
1360 their output to an 8250 UART. You can use this option
1361 to provide the parameters for the 8250 UART rather than
1362 selecting one of the platform specific options above if
1363 you know the parameters for the port.
1364
1365 This option is preferred over the platform specific
1366 options; the platform specific options are deprecated
1367 and will be soon removed.
1368
1369 config DEBUG_LL_UART_EFM32
1370 bool "Kernel low-level debugging via efm32 UART"
1371 depends on ARCH_EFM32
1372 help
1373 Say Y here if you want the debug print routines to direct
1374 their output to an UART or USART port on efm32 based
1375 machines. Use the following addresses for DEBUG_UART_PHYS:
1376
1377 0x4000c000 | USART0
1378 0x4000c400 | USART1
1379 0x4000c800 | USART2
1380 0x4000e000 | UART0
1381 0x4000e400 | UART1
1382
1383 config DEBUG_LL_UART_PL01X
1384 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1385 help
1386 Say Y here if you wish the debug print routes to direct
1387 their output to a PL01x Primecell UART. You can use
1388 this option to provide the parameters for the UART
1389 rather than selecting one of the platform specific
1390 options above if you know the parameters for the port.
1391
1392 This option is preferred over the platform specific
1393 options; the platform specific options are deprecated
1394 and will be soon removed.
1395
1396endchoice
1397
1398config DEBUG_AT91_UART
1399 bool
1400 depends on ARCH_AT91
1401
1402config DEBUG_EXYNOS_UART
1403 bool
1404
1405config DEBUG_S3C2410_UART
1406 bool
1407 select DEBUG_S3C24XX_UART
1408
1409config DEBUG_S3C24XX_UART
1410 bool
1411
1412config DEBUG_S3C64XX_UART
1413 bool
1414
1415config DEBUG_S5PV210_UART
1416 bool
1417
1418config DEBUG_OMAP2PLUS_UART
1419 bool
1420 depends on ARCH_OMAP2PLUS
1421
1422config DEBUG_IMX_UART_PORT
1423 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1424 DEBUG_IMX25_UART || \
1425 DEBUG_IMX21_IMX27_UART || \
1426 DEBUG_IMX31_UART || \
1427 DEBUG_IMX35_UART || \
1428 DEBUG_IMX50_UART || \
1429 DEBUG_IMX51_UART || \
1430 DEBUG_IMX53_UART || \
1431 DEBUG_IMX6Q_UART || \
1432 DEBUG_IMX6SL_UART || \
1433 DEBUG_IMX6SX_UART || \
1434 DEBUG_IMX6UL_UART || \
1435 DEBUG_IMX7D_UART
1436 default 1
1437 depends on ARCH_MXC
1438 help
1439 Choose UART port on which kernel low-level debug messages
1440 should be output.
1441
1442config DEBUG_VF_UART_PORT
1443 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1444 default 1
1445 range 0 3
1446 depends on SOC_VF610
1447 help
1448 Choose UART port on which kernel low-level debug messages
1449 should be output.
1450
1451config DEBUG_TEGRA_UART
1452 bool
1453 depends on ARCH_TEGRA
1454
1455config DEBUG_STI_UART
1456 bool
1457 depends on ARCH_STI
1458
1459config DEBUG_SIRFSOC_UART
1460 bool
1461 depends on ARCH_SIRF
1462
1463config DEBUG_LL_INCLUDE
1464 string
1465 default "debug/sa1100.S" if DEBUG_SA1100
1466 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1467 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1468 default "debug/at91.S" if DEBUG_AT91_UART
1469 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1470 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1471 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1472 default "debug/meson.S" if DEBUG_MESON_UARTAO
1473 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1474 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1475 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1476 default "debug/icedcc.S" if DEBUG_ICEDCC
1477 default "debug/imx.S" if DEBUG_IMX1_UART || \
1478 DEBUG_IMX25_UART || \
1479 DEBUG_IMX21_IMX27_UART || \
1480 DEBUG_IMX31_UART || \
1481 DEBUG_IMX35_UART || \
1482 DEBUG_IMX50_UART || \
1483 DEBUG_IMX51_UART || \
1484 DEBUG_IMX53_UART ||\
1485 DEBUG_IMX6Q_UART || \
1486 DEBUG_IMX6SL_UART || \
1487 DEBUG_IMX6SX_UART || \
1488 DEBUG_IMX6UL_UART || \
1489 DEBUG_IMX7D_UART
1490 default "debug/ks8695.S" if DEBUG_KS8695_UART
1491 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1492 default "debug/netx.S" if DEBUG_NETX_UART
1493 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1494 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1495 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1496 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1497 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1498 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1499 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1500 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1501 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1502 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1503 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1504 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1505 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1506 default "debug/sti.S" if DEBUG_STI_UART
1507 default "debug/tegra.S" if DEBUG_TEGRA_UART
1508 default "debug/ux500.S" if DEBUG_UX500_UART
1509 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1510 default "debug/vf.S" if DEBUG_VF_UART
1511 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1512 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1513 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1514 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1515 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1516 default "mach/debug-macro.S"
1517
1518# Compatibility options for PL01x
1519config DEBUG_UART_PL01X
1520 bool
1521
1522# Compatibility options for 8250
1523config DEBUG_UART_8250
1524 def_bool ARCH_EBSA110 || \
1525 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1526 ARCH_RPC
1527
1528config DEBUG_UART_PHYS
1529 hex "Physical base address of debug UART"
1530 default 0x00100a00 if DEBUG_NETX_UART
1531 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1532 default 0x01c28000 if DEBUG_SUNXI_UART0
1533 default 0x01c28400 if DEBUG_SUNXI_UART1
1534 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1535 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1536 default 0x01f02800 if DEBUG_SUNXI_R_UART
1537 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1538 default 0x02531000 if DEBUG_KEYSTONE_UART1
1539 default 0x03010fe0 if ARCH_RPC
1540 default 0x07000000 if DEBUG_SUN9I_UART0
1541 default 0x09405000 if DEBUG_ZTE_ZX
1542 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1543 DEBUG_VEXPRESS_UART0_CA9
1544 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1545 default 0x10124000 if DEBUG_RK3X_UART0
1546 default 0x10126000 if DEBUG_RK3X_UART1
1547 default 0x101f1000 if DEBUG_VERSATILE
1548 default 0x101fb000 if DEBUG_NOMADIK_UART
1549 default 0x10210000 if DEBUG_RV1108_UART2
1550 default 0x10220000 if DEBUG_RV1108_UART1
1551 default 0x10230000 if DEBUG_RV1108_UART0
1552 default 0x11002000 if DEBUG_MT8127_UART0
1553 default 0x11006000 if DEBUG_MT6589_UART0
1554 default 0x11009000 if DEBUG_MT8135_UART3
1555 default 0x16000000 if DEBUG_INTEGRATOR
1556 default 0x18000300 if DEBUG_BCM_5301X
1557 default 0x18000400 if DEBUG_BCM_HR2
1558 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1559 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1560 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1561 default 0x20001000 if DEBUG_HIP01_UART
1562 default 0x20060000 if DEBUG_RK29_UART0
1563 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1564 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1565 default 0x20201000 if DEBUG_BCM2835
1566 default 0x3f201000 if DEBUG_BCM2836
1567 default 0x3e000000 if DEBUG_BCM_KONA_UART
1568 default 0x4000e400 if DEBUG_LL_UART_EFM32
1569 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1570 default 0x40081000 if DEBUG_LPC18XX_UART0
1571 default 0x40090000 if DEBUG_LPC32XX
1572 default 0x40100000 if DEBUG_PXA_UART1
1573 default 0x42000000 if DEBUG_GEMINI
1574 default 0x44e09000 if DEBUG_AM33XXUART1
1575 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1576 default 0x48022000 if DEBUG_TI81XXUART2
1577 default 0x48024000 if DEBUG_TI81XXUART3
1578 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1579 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1580 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1581 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1582 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1583 default 0x49020000 if DEBUG_OMAP3UART3
1584 default 0x49042000 if DEBUG_OMAP3UART4
1585 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1586 DEBUG_S3C2410_UART0)
1587 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1588 DEBUG_S3C2410_UART1)
1589 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1590 DEBUG_S3C2410_UART2)
1591 default 0x78000000 if DEBUG_CNS3XXX
1592 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1593 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1594 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1595 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1596 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1597 default 0x80010000 if DEBUG_ASM9260_UART
1598 default 0x80070000 if DEBUG_IMX23_UART
1599 default 0x80074000 if DEBUG_IMX28_UART
1600 default 0x80230000 if DEBUG_PICOXCELL_UART
1601 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1602 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1603 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1604 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1605 default 0xc0013000 if DEBUG_U300_UART
1606 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1607 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1608 default 0xd0000000 if DEBUG_SPEAR3XX
1609 default 0xd0012000 if DEBUG_MVEBU_UART0
1610 default 0xc81004c0 if DEBUG_MESON_UARTAO
1611 default 0xd4017000 if DEBUG_MMP_UART2
1612 default 0xd4018000 if DEBUG_MMP_UART3
1613 default 0xe0000000 if DEBUG_SPEAR13XX
1614 default 0xe4007000 if DEBUG_HIP04_UART
1615 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1616 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1617 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1618 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1619 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1620 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1621 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1622 default 0xf0000be0 if ARCH_EBSA110
1623 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1624 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1625 default 0xf7fc9000 if DEBUG_BERLIN_UART
1626 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1627 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1628 default 0xf991e000 if DEBUG_QCOM_UARTDM
1629 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1630 default 0xfcb00000 if DEBUG_HI3620_UART
1631 default 0xfd883000 if DEBUG_ALPINE_UART0
1632 default 0xfe800000 if ARCH_IOP32X
1633 default 0xff690000 if DEBUG_RK32_UART2
1634 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1635 default 0xffc02100 if DEBUG_SOCFPGA_UART1
1636 default 0xffd82340 if ARCH_IOP13XX
1637 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1638 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1639 default 0xfff36000 if DEBUG_HIGHBANK_UART
1640 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1641 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1642 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1643 default 0xfffe8600 if DEBUG_BCM63XX_UART
1644 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1645 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1646 default 0xfffff700 if ARCH_IOP33X
1647 depends on ARCH_EP93XX || \
1648 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1649 DEBUG_LL_UART_EFM32 || \
1650 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1651 DEBUG_NETX_UART || \
1652 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1653 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1654 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1655 DEBUG_RCAR_GEN2_SCIF4 || \
1656 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1657 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1658 DEBUG_S3C64XX_UART || \
1659 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1660 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1661 DEBUG_AT91_UART
1662
1663config DEBUG_UART_VIRT
1664 hex "Virtual base address of debug UART"
1665 default 0xc881f000 if DEBUG_RV1108_UART2
1666 default 0xc8821000 if DEBUG_RV1108_UART1
1667 default 0xc8912000 if DEBUG_RV1108_UART0
1668 default 0xe0000a00 if DEBUG_NETX_UART
1669 default 0xe0010fe0 if ARCH_RPC
1670 default 0xf0000be0 if ARCH_EBSA110
1671 default 0xf0010000 if DEBUG_ASM9260_UART
1672 default 0xf01fb000 if DEBUG_NOMADIK_UART
1673 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1674 default 0xf1000300 if DEBUG_BCM_5301X
1675 default 0xf1000400 if DEBUG_BCM_HR2
1676 default 0xf1002000 if DEBUG_MT8127_UART0
1677 default 0xf1006000 if DEBUG_MT6589_UART0
1678 default 0xf1009000 if DEBUG_MT8135_UART3
1679 default 0xf11f1000 if DEBUG_VERSATILE
1680 default 0xf1600000 if DEBUG_INTEGRATOR
1681 default 0xf1c28000 if DEBUG_SUNXI_UART0
1682 default 0xf1c28400 if DEBUG_SUNXI_UART1
1683 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1684 default 0xf31004c0 if DEBUG_MESON_UARTAO
1685 default 0xf4090000 if DEBUG_LPC32XX
1686 default 0xf4200000 if DEBUG_GEMINI
1687 default 0xf6200000 if DEBUG_PXA_UART1
1688 default 0xf7000000 if DEBUG_SUN9I_UART0
1689 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1690 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1691 DEBUG_S3C2410_UART0)
1692 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1693 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1694 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1695 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1696 DEBUG_S3C2410_UART1)
1697 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1698 DEBUG_S3C2410_UART2)
1699 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1700 default 0xf7fc9000 if DEBUG_BERLIN_UART
1701 default 0xf8007000 if DEBUG_HIP04_UART
1702 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1703 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1704 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1705 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1706 default 0xf9e09000 if DEBUG_AM33XXUART1
1707 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1708 default 0xfa022000 if DEBUG_TI81XXUART2
1709 default 0xfa024000 if DEBUG_TI81XXUART3
1710 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1711 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1712 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1713 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1714 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1715 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1716 default 0xfb002000 if DEBUG_CNS3XXX
1717 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1718 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1719 default 0xfb020000 if DEBUG_OMAP3UART3
1720 default 0xfb042000 if DEBUG_OMAP3UART4
1721 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1722 default 0xfc705000 if DEBUG_ZTE_ZX
1723 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1724 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1725 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1726 default 0xfd883000 if DEBUG_ALPINE_UART0
1727 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1728 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1729 default 0xfe017000 if DEBUG_MMP_UART2
1730 default 0xfe018000 if DEBUG_MMP_UART3
1731 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1732 default 0xfe230000 if DEBUG_PICOXCELL_UART
1733 default 0xfe300000 if DEBUG_BCM_KONA_UART
1734 default 0xfe800000 if ARCH_IOP32X
1735 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1736 default 0xfeb24000 if DEBUG_RK3X_UART0
1737 default 0xfeb26000 if DEBUG_RK3X_UART1
1738 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1739 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1740 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1741 default 0xfec02100 if DEBUG_SOCFPGA_UART1
1742 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1743 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1744 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1745 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1746 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1747 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1748 default 0xfec90000 if DEBUG_RK32_UART2
1749 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1750 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1751 default 0xfed60000 if DEBUG_RK29_UART0
1752 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1753 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1754 default 0xfedc0000 if DEBUG_EP93XX
1755 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1756 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1757 default 0xfee82340 if ARCH_IOP13XX
1758 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1759 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1760 default 0xfef36000 if DEBUG_HIGHBANK_UART
1761 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1762 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1763 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1764 default 0xfefff700 if ARCH_IOP33X
1765 default 0xff003000 if DEBUG_U300_UART
1766 default 0xffd01000 if DEBUG_HIP01_UART
1767 default DEBUG_UART_PHYS if !MMU
1768 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1769 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1770 DEBUG_NETX_UART || \
1771 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1772 DEBUG_S3C64XX_UART || \
1773 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1774 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1775 DEBUG_AT91_UART
1776
1777config DEBUG_UART_8250_SHIFT
1778 int "Register offset shift for the 8250 debug UART"
1779 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1780 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1781 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1782 DEBUG_OMAP7XXUART3
1783 default 2
1784
1785config DEBUG_UART_8250_WORD
1786 bool "Use 32-bit accesses for 8250 UART"
1787 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1788 depends on DEBUG_UART_8250_SHIFT >= 2
1789 default y if DEBUG_PICOXCELL_UART || \
1790 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \
1791 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
1792 DEBUG_ALPINE_UART0 || \
1793 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1794 DEBUG_DAVINCI_DA8XX_UART2 || \
1795 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1796
1797config DEBUG_UART_8250_PALMCHIP
1798 bool "8250 UART is Palmchip BK-310x"
1799 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1800 help
1801 Palmchip provides a UART implementation compatible with 16550
1802 except for having a different register layout. Say Y here if
1803 the debug UART is of this type.
1804
1805config DEBUG_UART_8250_FLOW_CONTROL
1806 bool "Enable flow control for 8250 UART"
1807 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1808 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1809
1810config DEBUG_UNCOMPRESS
1811 bool "Enable decompressor debugging via DEBUG_LL output"
1812 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1813 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1814 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1815 !DEBUG_BRCMSTB_UART
1816 help
1817 This option influences the normal decompressor output for
1818 multiplatform kernels. Normally, multiplatform kernels disable
1819 decompressor output because it is not possible to know where to
1820 send the decompressor output.
1821
1822 When this option is set, the selected DEBUG_LL output method
1823 will be re-used for normal decompressor output on multiplatform
1824 kernels.
1825
1826
1827config UNCOMPRESS_INCLUDE
1828 string
1829 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1830 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1831 default "mach/uncompress.h"
1832
1833config EARLY_PRINTK
1834 bool "Early printk"
1835 depends on DEBUG_LL
1836 help
1837 Say Y here if you want to have an early console using the
1838 kernel low-level debugging functions. Add earlyprintk to your
1839 kernel parameters to enable this console.
1840
1841config ARM_KPROBES_TEST
1842 tristate "Kprobes test module"
1843 depends on KPROBES && MODULES
1844 help
1845 Perform tests of kprobes API and instruction set simulation.
1846
1847config PID_IN_CONTEXTIDR
1848 bool "Write the current PID to the CONTEXTIDR register"
1849 depends on CPU_COPY_V6
1850 help
1851 Enabling this option causes the kernel to write the current PID to
1852 the PROCID field of the CONTEXTIDR register, at the expense of some
1853 additional instructions during context switch. Say Y here only if you
1854 are planning to use hardware trace tools with this kernel.
1855
1856source "drivers/hwtracing/coresight/Kconfig"
1857
1858endmenu