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Merge tag 'pm-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
[linux-2.6-block.git] / arch / arm / Kconfig.debug
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1# SPDX-License-Identifier: GPL-2.0
2
3config ARM_PTDUMP_CORE
4 def_bool n
5
6config ARM_PTDUMP_DEBUGFS
7 bool "Export kernel pagetable layout to userspace via debugfs"
8 depends on DEBUG_KERNEL
9 depends on MMU
10 select ARM_PTDUMP_CORE
11 select DEBUG_FS
12 help
13 Say Y here if you want to show the kernel pagetable layout in a
14 debugfs file. This information is only useful for kernel developers
15 who are working in architecture specific areas of the kernel.
16 It is probably not a good idea to enable this feature in a production
17 kernel.
18 If in doubt, say "N"
19
20config ARM_DEBUG_WX
21 bool "Warn on W+X mappings at boot"
22 depends on MMU
23 select ARM_PTDUMP_CORE
24 help
25 Generate a warning if any W+X mappings are found at boot.
26
27 This is useful for discovering cases where the kernel is leaving
28 W+X mappings after applying NX, as such mappings are a security risk.
29
30 Look for a message in dmesg output like this:
31
32 arm/mm: Checked W+X mappings: passed, no W+X pages found.
33
34 or like this, if the check failed:
35
36 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
37
38 Note that even if the check fails, your kernel is possibly
39 still fine, as W+X mappings are not a security hole in
40 themselves, what they do is that they make the exploitation
41 of other unfixed kernel bugs easier.
42
43 There is no runtime or memory usage effect of this option
44 once the kernel has booted up - it's a one time check.
45
46 If in doubt, say "Y".
47
48choice
49 prompt "Choose kernel unwinder"
50 default UNWINDER_ARM if AEABI
51 default UNWINDER_FRAME_POINTER if !AEABI
52 help
53 This determines which method will be used for unwinding kernel stack
54 traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
55 livepatch, lockdep, and more.
56
57config UNWINDER_FRAME_POINTER
58 bool "Frame pointer unwinder"
59 depends on !THUMB2_KERNEL
60 select ARCH_WANT_FRAME_POINTERS
61 select FRAME_POINTER
62 help
63 This option enables the frame pointer unwinder for unwinding
64 kernel stack traces.
65
66config UNWINDER_ARM
67 bool "ARM EABI stack unwinder"
68 depends on AEABI
69 select ARM_UNWIND
70 help
71 This option enables stack unwinding support in the kernel
72 using the information automatically generated by the
73 compiler. The resulting kernel image is slightly bigger but
74 the performance is not affected. Currently, this feature
75 only works with EABI compilers.
76
77endchoice
78
79config ARM_UNWIND
80 bool
81
82config BACKTRACE_VERBOSE
83 bool "Verbose backtrace"
84 depends on EXPERT
85 help
86 When the kernel produces a warning or oops, the kernel prints a
87 trace of the call chain. This option controls whether we include
88 the numeric addresses or only include the symbolic information.
89
90 In most cases, say N here, unless you are intending to debug the
91 kernel and have access to the kernel binary image.
92
93config DEBUG_USER
94 bool "Verbose user fault messages"
95 help
96 When a user program crashes due to an exception, the kernel can
97 print a brief message explaining what the problem was. This is
98 sometimes helpful for debugging but serves no purpose on a
99 production system. Most people should say N here.
100
101 In addition, you need to pass user_debug=N on the kernel command
102 line to enable this feature. N consists of the sum of:
103
104 1 - undefined instruction events
105 2 - system calls
106 4 - invalid data aborts
107 8 - SIGSEGV faults
108 16 - SIGBUS faults
109
110# These options are only for real kernel hackers who want to get their hands dirty.
111config DEBUG_LL
112 bool "Kernel low-level debugging functions (read help!)"
113 depends on DEBUG_KERNEL
114 help
115 Say Y here to include definitions of printascii, printch, printhex
116 in the kernel. This is helpful if you are debugging code that
117 executes before the console is initialized.
118
119 Note that selecting this option will limit the kernel to a single
120 UART definition, as specified below. Attempting to boot the kernel
121 image on a different platform *will not work*, so this option should
122 not be enabled for kernels that are intended to be portable.
123
124choice
125 prompt "Kernel low-level debugging port"
126 depends on DEBUG_LL
127
128 config DEBUG_ALPINE_UART0
129 bool "Kernel low-level debugging messages via Alpine UART0"
130 depends on ARCH_ALPINE
131 select DEBUG_UART_8250
132 help
133 Say Y here if you want kernel low-level debugging support
134 on Alpine based platforms.
135
136 config DEBUG_ASM9260_UART
137 bool "Kernel low-level debugging via asm9260 UART"
138 depends on MACH_ASM9260
139 help
140 Say Y here if you want the debug print routines to direct
141 their output to an UART or USART port on asm9260 based
142 machines.
143
144 DEBUG_UART_PHYS | DEBUG_UART_VIRT
145
146 0x80000000 | 0xf0000000 | UART0
147 0x80004000 | 0xf0004000 | UART1
148 0x80008000 | 0xf0008000 | UART2
149 0x8000c000 | 0xf000c000 | UART3
150 0x80010000 | 0xf0010000 | UART4
151 0x80014000 | 0xf0014000 | UART5
152 0x80018000 | 0xf0018000 | UART6
153 0x8001c000 | 0xf001c000 | UART7
154 0x80020000 | 0xf0020000 | UART8
155 0x80024000 | 0xf0024000 | UART9
156
157 config DEBUG_AT91_RM9200_DBGU
158 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
159 select DEBUG_AT91_UART
160 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
161 help
162 Say Y here if you want kernel low-level debugging support
163 on the DBGU port of:
164 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
165 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
166
167 config DEBUG_AT91_SAM9263_DBGU
168 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
169 select DEBUG_AT91_UART
170 depends on SOC_AT91SAM9 || SOC_SAMA5D3
171 help
172 Say Y here if you want kernel low-level debugging support
173 on the DBGU port of:
174 at91sam9263, at91sam9g45, at91sam9m10,
175 sama5d3
176
177 config DEBUG_AT91_SAMA5D2_UART1
178 bool "Kernel low-level debugging on SAMA5D2 UART1"
179 select DEBUG_AT91_UART
180 depends on SOC_SAMA5D2
181 help
182 Say Y here if you want kernel low-level debugging support
183 on the UART1 port of sama5d2.
184
185 config DEBUG_AT91_SAMA5D4_USART3
186 bool "Kernel low-level debugging on SAMA5D4 USART3"
187 select DEBUG_AT91_UART
188 depends on SOC_SAMA5D4
189 help
190 Say Y here if you want kernel low-level debugging support
191 on the USART3 port of sama5d4.
192
193 config DEBUG_AT91_SAMV7_USART1
194 bool "Kernel low-level debugging via SAMV7 USART1"
195 select DEBUG_AT91_UART
196 depends on SOC_SAMV7
197 help
198 Say Y here if you want the debug print routines to direct
199 their output to the USART1 port on SAMV7 based
200 machines.
201
202 config DEBUG_AT91_SAMA7G5_FLEXCOM3
203 bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3"
204 select DEBUG_AT91_UART
205 depends on SOC_SAMA7G5
206 help
207 Say Y here if you want kernel low-level debugging support
208 on the FLEXCOM3 port of SAMA7G5.
209
210 config DEBUG_AT91_LAN966_FLEXCOM
211 bool "Kernel low-level debugging on LAN966 FLEXCOM USART"
212 select DEBUG_AT91_UART
213 depends on SOC_LAN966
214 help
215 Say Y here if you want kernel low-level debugging support
216 on the FLEXCOM port of LAN966.
217
218 DEBUG_UART_PHYS | DEBUG_UART_VIRT
219
220 0xe0040200 | 0xfd040200 | FLEXCOM0
221 0xe0044200 | 0xfd044200 | FLEXCOM1
222 0xe0060200 | 0xfd060200 | FLEXCOM2
223 0xe0064200 | 0xfd064200 | FLEXCOM3
224 0xe0070200 | 0xfd070200 | FLEXCOM4
225
226 By default, enabling FLEXCOM3 port. Based on requirement, use
227 DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above
228 table.
229
230 config DEBUG_BCM2835
231 bool "Kernel low-level debugging on BCM2835 PL011 UART"
232 depends on ARCH_BCM2835 && ARCH_MULTI_V6
233 select DEBUG_UART_PL01X
234
235 config DEBUG_BCM2836
236 bool "Kernel low-level debugging on BCM2836 PL011 UART"
237 depends on ARCH_BCM2835 && ARCH_MULTI_V7
238 select DEBUG_UART_PL01X
239
240 config DEBUG_BCM_5301X
241 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
242 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
243 select DEBUG_UART_8250
244
245 config DEBUG_BCMBCA
246 bool "Kernel low-level debugging on BCMBCA UART0"
247 depends on ARCH_BCMBCA
248
249 config DEBUG_BCM_HR2
250 bool "Kernel low-level debugging on Hurricane 2 UART2"
251 depends on ARCH_BCM_HR2
252 select DEBUG_UART_8250
253
254 config DEBUG_BCM_IPROC_UART3
255 bool "Kernel low-level debugging on BCM IPROC UART3"
256 depends on ARCH_BCM_CYGNUS
257 select DEBUG_UART_8250
258 help
259 Say Y here if you want the debug print routines to direct
260 their output to the third serial port on these devices.
261
262 config DEBUG_BCM_KONA_UART
263 bool "Kernel low-level debugging messages via BCM KONA UART"
264 depends on ARCH_BCM_MOBILE
265 select DEBUG_UART_8250
266 help
267 Say Y here if you want kernel low-level debugging support
268 on Broadcom SoC platforms.
269 This low level debug works for Broadcom
270 mobile SoCs in the Kona family of chips (e.g. bcm28155,
271 bcm11351, etc...)
272
273 config DEBUG_BCM63XX_UART
274 bool "Kernel low-level debugging on BCM63XX UART"
275 depends on ARCH_BCMBCA
276
277 config DEBUG_BERLIN_UART
278 bool "Marvell Berlin SoC Debug UART"
279 depends on ARCH_BERLIN
280 select DEBUG_UART_8250
281 help
282 Say Y here if you want kernel low-level debugging support
283 on Marvell Berlin SoC based platforms.
284
285 config DEBUG_BRCMSTB_UART
286 bool "Use BRCMSTB UART for low-level debug"
287 depends on ARCH_BRCMSTB
288 help
289 Say Y here if you want the debug print routines to direct
290 their output to the first serial port on these devices. The
291 UART physical and virtual address is automatically provided
292 based on the chip identification register value.
293
294 If you have a Broadcom STB chip and would like early print
295 messages to appear over the UART, select this option.
296
297 config DEBUG_CLPS711X_UART1
298 bool "Kernel low-level debugging messages via UART1"
299 depends on ARCH_CLPS711X
300 help
301 Say Y here if you want the debug print routines to direct
302 their output to the first serial port on these devices.
303
304 config DEBUG_CLPS711X_UART2
305 bool "Kernel low-level debugging messages via UART2"
306 depends on ARCH_CLPS711X
307 help
308 Say Y here if you want the debug print routines to direct
309 their output to the second serial port on these devices.
310
311 config DEBUG_DAVINCI_DA8XX_UART1
312 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
313 depends on ARCH_DAVINCI_DA8XX
314 select DEBUG_UART_8250
315 help
316 Say Y here if you want the debug print routines to direct
317 their output to UART1 serial port on DaVinci DA8XX devices.
318
319 config DEBUG_DAVINCI_DA8XX_UART2
320 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
321 depends on ARCH_DAVINCI_DA8XX
322 select DEBUG_UART_8250
323 help
324 Say Y here if you want the debug print routines to direct
325 their output to UART2 serial port on DaVinci DA8XX devices.
326
327 config DEBUG_DC21285_PORT
328 bool "Kernel low-level debugging messages via footbridge serial port"
329 depends on FOOTBRIDGE
330 help
331 Say Y here if you want the debug print routines to direct
332 their output to the serial port in the DC21285 (Footbridge).
333
334 config DEBUG_DIGICOLOR_UA0
335 bool "Kernel low-level debugging messages via Digicolor UA0"
336 depends on ARCH_DIGICOLOR
337 help
338 Say Y here if you want the debug print routines to direct
339 their output to the UA0 serial port in the CX92755.
340
341 config DEBUG_EP93XX
342 bool "Kernel low-level debugging messages via ep93xx UART"
343 depends on ARCH_EP93XX
344 select DEBUG_UART_PL01X
345 help
346 Say Y here if you want kernel low-level debugging support
347 on Cirrus Logic EP93xx based platforms.
348
349 config DEBUG_FOOTBRIDGE_COM1
350 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
351 depends on FOOTBRIDGE
352 select DEBUG_UART_8250
353 help
354 Say Y here if you want the debug print routines to direct
355 their output to the 8250 at PCI COM1.
356
357 config DEBUG_GEMINI
358 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
359 depends on ARCH_GEMINI
360 select DEBUG_UART_8250
361 help
362 Say Y here if you want kernel low-level debugging support
363 on Cortina Gemini based platforms.
364
365 config DEBUG_HI3620_UART
366 bool "Hisilicon HI3620 Debug UART"
367 depends on ARCH_HI3xxx
368 select DEBUG_UART_PL01X
369 help
370 Say Y here if you want kernel low-level debugging support
371 on HI3620 UART.
372
373 config DEBUG_HIGHBANK_UART
374 bool "Kernel low-level debugging messages via Highbank UART"
375 depends on ARCH_HIGHBANK
376 select DEBUG_UART_PL01X
377 help
378 Say Y here if you want the debug print routines to direct
379 their output to the UART on Highbank based devices.
380
381 config DEBUG_HIP01_UART
382 bool "Hisilicon Hip01 Debug UART"
383 depends on ARCH_HIP01
384 select DEBUG_UART_8250
385 help
386 Say Y here if you want kernel low-level debugging support
387 on HIP01 UART.
388
389 config DEBUG_HIP04_UART
390 bool "Hisilicon HiP04 Debug UART"
391 depends on ARCH_HIP04
392 select DEBUG_UART_8250
393 help
394 Say Y here if you want kernel low-level debugging support
395 on HIP04 UART.
396
397 config DEBUG_HIX5HD2_UART
398 bool "Hisilicon Hix5hd2 Debug UART"
399 depends on ARCH_HIX5HD2
400 select DEBUG_UART_PL01X
401 help
402 Say Y here if you want kernel low-level debugging support
403 on Hix5hd2 UART.
404
405 config DEBUG_IMX1_UART
406 bool "i.MX1 Debug UART"
407 depends on SOC_IMX1
408 help
409 Say Y here if you want kernel low-level debugging support
410 on i.MX1.
411
412 config DEBUG_IMX23_UART
413 bool "i.MX23 Debug UART"
414 depends on SOC_IMX23
415 select DEBUG_UART_PL01X
416 help
417 Say Y here if you want kernel low-level debugging support
418 on i.MX23.
419
420 config DEBUG_IMX25_UART
421 bool "i.MX25 Debug UART"
422 depends on SOC_IMX25
423 help
424 Say Y here if you want kernel low-level debugging support
425 on i.MX25.
426
427 config DEBUG_IMX27_UART
428 bool "i.MX27 Debug UART"
429 depends on SOC_IMX27
430 help
431 Say Y here if you want kernel low-level debugging support
432 on i.MX27.
433
434 config DEBUG_IMX28_UART
435 bool "i.MX28 Debug UART"
436 depends on SOC_IMX28
437 select DEBUG_UART_PL01X
438 help
439 Say Y here if you want kernel low-level debugging support
440 on i.MX28.
441
442 config DEBUG_IMX31_UART
443 bool "i.MX31 Debug UART"
444 depends on SOC_IMX31
445 help
446 Say Y here if you want kernel low-level debugging support
447 on i.MX31.
448
449 config DEBUG_IMX35_UART
450 bool "i.MX35 Debug UART"
451 depends on SOC_IMX35
452 help
453 Say Y here if you want kernel low-level debugging support
454 on i.MX35.
455
456 config DEBUG_IMX50_UART
457 bool "i.MX50 Debug UART"
458 depends on SOC_IMX50
459 help
460 Say Y here if you want kernel low-level debugging support
461 on i.MX50.
462
463 config DEBUG_IMX51_UART
464 bool "i.MX51 Debug UART"
465 depends on SOC_IMX51
466 help
467 Say Y here if you want kernel low-level debugging support
468 on i.MX51.
469
470 config DEBUG_IMX53_UART
471 bool "i.MX53 Debug UART"
472 depends on SOC_IMX53
473 help
474 Say Y here if you want kernel low-level debugging support
475 on i.MX53.
476
477 config DEBUG_IMX6Q_UART
478 bool "i.MX6Q/DL Debug UART"
479 depends on SOC_IMX6Q
480 help
481 Say Y here if you want kernel low-level debugging support
482 on i.MX6Q/DL.
483
484 config DEBUG_IMX6SL_UART
485 bool "i.MX6SL Debug UART"
486 depends on SOC_IMX6SL
487 help
488 Say Y here if you want kernel low-level debugging support
489 on i.MX6SL.
490
491 config DEBUG_IMX6SX_UART
492 bool "i.MX6SX Debug UART"
493 depends on SOC_IMX6SX
494 help
495 Say Y here if you want kernel low-level debugging support
496 on i.MX6SX.
497
498 config DEBUG_IMX6UL_UART
499 bool "i.MX6UL Debug UART"
500 depends on SOC_IMX6UL
501 help
502 Say Y here if you want kernel low-level debugging support
503 on i.MX6UL.
504
505 config DEBUG_IMX7D_UART
506 bool "i.MX7D Debug UART"
507 depends on SOC_IMX7D
508 help
509 Say Y here if you want kernel low-level debugging support
510 on i.MX7D.
511
512 config DEBUG_INTEGRATOR
513 bool "Kernel low-level debugging messages via ARM Integrator UART"
514 depends on ARCH_INTEGRATOR
515 select DEBUG_UART_PL01X
516 help
517 Say Y here if you want kernel low-level debugging support
518 on ARM Integrator platforms.
519
520 config DEBUG_KEYSTONE_UART0
521 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
522 depends on ARCH_KEYSTONE
523 select DEBUG_UART_8250
524 help
525 Say Y here if you want the debug print routines to direct
526 their output to UART0 serial port on KEYSTONE2 devices.
527
528 config DEBUG_KEYSTONE_UART1
529 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
530 depends on ARCH_KEYSTONE
531 select DEBUG_UART_8250
532 help
533 Say Y here if you want the debug print routines to direct
534 their output to UART1 serial port on KEYSTONE2 devices.
535
536 config DEBUG_LPC18XX_UART0
537 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
538 depends on ARCH_LPC18XX
539 select DEBUG_UART_8250
540 help
541 Say Y here if you want kernel low-level debugging support
542 on NXP LPC18xx/43xx UART0.
543
544 config DEBUG_LPC32XX
545 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
546 depends on ARCH_LPC32XX
547 select DEBUG_UART_8250
548 help
549 Say Y here if you want kernel low-level debugging support
550 on NXP LPC32xx based platforms.
551
552 config DEBUG_MESON_UARTAO
553 bool "Kernel low-level debugging via Meson6 UARTAO"
554 depends on ARCH_MESON
555 help
556 Say Y here if you want kernel low-lever debugging support
557 on Amlogic Meson6 based platforms on the UARTAO.
558
559 config DEBUG_MMP_UART2
560 bool "Kernel low-level debugging message via MMP UART2"
561 depends on ARCH_MMP
562 select DEBUG_UART_8250
563 help
564 Say Y here if you want kernel low-level debugging support
565 on MMP UART2.
566
567 config DEBUG_MMP_UART3
568 bool "Kernel low-level debugging message via MMP UART3"
569 depends on ARCH_MMP
570 select DEBUG_UART_8250
571 help
572 Say Y here if you want kernel low-level debugging support
573 on MMP UART3.
574
575 config DEBUG_MVEBU_UART0
576 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
577 depends on ARCH_MVEBU
578 depends on ARCH_MVEBU && CPU_V7
579 select DEBUG_UART_8250
580 help
581 Say Y here if you want kernel low-level debugging support
582 on MVEBU based platforms on UART0.
583
584 This option should be used with the old bootloaders
585 that left the internal registers mapped at
586 0xd0000000. As of today, this is the case on
587 platforms such as the Globalscale Mirabox or the
588 Plathome OpenBlocks AX3, when using the original
589 bootloader.
590
591 This option will not work on older Marvell platforms
592 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
593 the "new bootloader" variant.
594
595 If the wrong DEBUG_MVEBU_UART* option is selected,
596 when u-boot hands over to the kernel, the system
597 silently crashes, with no serial output at all.
598
599 config DEBUG_MVEBU_UART0_ALTERNATE
600 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
601 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
602 select DEBUG_UART_8250
603 help
604 Say Y here if you want kernel low-level debugging support
605 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
606 Kirkwood, Dove, MV78xx0, Orion5x).
607
608
609 This option should be used with the new bootloaders
610 that remap the internal registers at 0xf1000000.
611
612 If the wrong DEBUG_MVEBU_UART* option is selected,
613 when u-boot hands over to the kernel, the system
614 silently crashes, with no serial output at all.
615
616 config DEBUG_MVEBU_UART1_ALTERNATE
617 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
618 depends on ARCH_MVEBU
619 select DEBUG_UART_8250
620 help
621 Say Y here if you want kernel low-level debugging support
622 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
623 Kirkwood, Dove, MV78xx0, Orion5x).
624
625 This option should be used with the new bootloaders
626 that remap the internal registers at 0xf1000000.
627 All of the older (pre Armada XP/370) platforms also use
628 this address, regardless of the boot loader version.
629
630 If the wrong DEBUG_MVEBU_UART* option is selected,
631 when u-boot hands over to the kernel, the system
632 silently crashes, with no serial output at all.
633
634 config DEBUG_MSTARV7_PMUART
635 bool "Kernel low-level debugging messages via MSTARV7 PM UART"
636 depends on ARCH_MSTARV7
637 select DEBUG_UART_8250
638 help
639 Say Y here if you want kernel low-level debugging support
640 for MSTAR ARMv7-based platforms on PM UART.
641
642 config DEBUG_MT6589_UART0
643 bool "Mediatek mt6589 UART0"
644 depends on ARCH_MEDIATEK
645 select DEBUG_UART_8250
646 help
647 Say Y here if you want kernel low-level debugging support
648 for Mediatek mt6589 based platforms on UART0.
649
650 config DEBUG_MT8127_UART0
651 bool "Mediatek mt8127/mt6592 UART0"
652 depends on ARCH_MEDIATEK
653 select DEBUG_UART_8250
654 help
655 Say Y here if you want kernel low-level debugging support
656 for Mediatek mt8127 based platforms on UART0.
657
658 config DEBUG_MT8135_UART3
659 bool "Mediatek mt8135 UART3"
660 depends on ARCH_MEDIATEK
661 select DEBUG_UART_8250
662 help
663 Say Y here if you want kernel low-level debugging support
664 for Mediatek mt8135 based platforms on UART3.
665
666 config DEBUG_NOMADIK_UART
667 bool "Kernel low-level debugging messages via NOMADIK UART"
668 depends on ARCH_NOMADIK
669 select DEBUG_UART_PL01X
670 help
671 Say Y here if you want kernel low-level debugging support
672 on NOMADIK based platforms.
673
674 config DEBUG_NSPIRE_CLASSIC_UART
675 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
676 depends on ARCH_NSPIRE
677 select DEBUG_UART_8250
678 help
679 Say Y here if you want kernel low-level debugging support
680 on TI-NSPIRE classic models.
681
682 config DEBUG_NSPIRE_CX_UART
683 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
684 depends on ARCH_NSPIRE
685 select DEBUG_UART_PL01X
686 help
687 Say Y here if you want kernel low-level debugging support
688 on TI-NSPIRE CX models.
689
690 config DEBUG_OMAP1UART1
691 bool "Kernel low-level debugging via OMAP1 UART1"
692 depends on ARCH_OMAP1
693 select DEBUG_UART_8250
694 help
695 Say Y here if you want kernel low-level debugging support
696 on OMAP1 based platforms (except OMAP730) on the UART1.
697
698 config DEBUG_OMAP1UART2
699 bool "Kernel low-level debugging via OMAP1 UART2"
700 depends on ARCH_OMAP1
701 select DEBUG_UART_8250
702 help
703 Say Y here if you want kernel low-level debugging support
704 on OMAP1 based platforms (except OMAP730) on the UART2.
705
706 config DEBUG_OMAP1UART3
707 bool "Kernel low-level debugging via OMAP1 UART3"
708 depends on ARCH_OMAP1
709 select DEBUG_UART_8250
710 help
711 Say Y here if you want kernel low-level debugging support
712 on OMAP1 based platforms (except OMAP730) on the UART3.
713
714 config DEBUG_OMAP2UART1
715 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
716 depends on ARCH_OMAP2PLUS
717 select DEBUG_UART_8250
718 help
719 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
720 omap3 torpedo and 3530 lv som.
721
722 config DEBUG_OMAP2UART2
723 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
724 depends on ARCH_OMAP2PLUS
725 select DEBUG_UART_8250
726
727 config DEBUG_OMAP2UART3
728 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
729 depends on ARCH_OMAP2PLUS
730 select DEBUG_UART_8250
731
732 config DEBUG_OMAP3UART3
733 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
734 depends on ARCH_OMAP2PLUS
735 select DEBUG_UART_8250
736 help
737 This covers at least cm_t3x, beagle, crane, devkit8000,
738 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
739 and 3517evm.
740
741 config DEBUG_OMAP4UART3
742 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
743 depends on ARCH_OMAP2PLUS
744 select DEBUG_UART_8250
745
746 config DEBUG_OMAP3UART4
747 bool "Kernel low-level debugging messages via OMAP36XX UART4"
748 depends on ARCH_OMAP2PLUS
749 select DEBUG_UART_8250
750
751 config DEBUG_OMAP4UART4
752 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
753 depends on ARCH_OMAP2PLUS
754 select DEBUG_UART_8250
755
756 config DEBUG_TI81XXUART1
757 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
758 depends on ARCH_OMAP2PLUS
759 select DEBUG_UART_8250
760
761 config DEBUG_TI81XXUART2
762 bool "Kernel low-level debugging messages via TI81XX UART2"
763 depends on ARCH_OMAP2PLUS
764 select DEBUG_UART_8250
765
766 config DEBUG_TI81XXUART3
767 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
768 depends on ARCH_OMAP2PLUS
769 select DEBUG_UART_8250
770
771 config DEBUG_AM33XXUART1
772 bool "Kernel low-level debugging messages via AM33XX UART1"
773 depends on ARCH_OMAP2PLUS
774 select DEBUG_UART_8250
775
776 config DEBUG_ZOOM_UART
777 bool "Kernel low-level debugging messages via Zoom2/3 UART"
778 depends on ARCH_OMAP2PLUS
779 select DEBUG_OMAP2PLUS_UART
780
781 config DEBUG_PXA_UART1
782 depends on ARCH_PXA
783 bool "Use PXA UART1 for low-level debug"
784 select DEBUG_UART_8250
785 help
786 Say Y here if you want kernel low-level debugging support
787 on PXA UART1.
788
789 config DEBUG_QCOM_UARTDM
790 bool "Kernel low-level debugging messages via QCOM UARTDM"
791 depends on ARCH_QCOM
792 help
793 Say Y here if you want the debug print routines to direct
794 their output to the serial port on Qualcomm devices.
795
796 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
797 APQ8064 0x16640000 0xf0040000
798 APQ8084 0xf995e000 0xfa75e000
799 IPQ4019 0x078af000 0xf78af000
800 MSM8X60 0x19c40000 0xf0040000
801 MSM8960 0x16440000 0xf0040000
802 MSM8974 0xf991e000 0xfa71e000
803
804 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
805 options based on your needs.
806
807 config DEBUG_REALVIEW_STD_PORT
808 bool "RealView Default UART"
809 depends on ARCH_REALVIEW
810 select DEBUG_UART_PL01X
811 help
812 Say Y here if you want the debug print routines to direct
813 their output to the serial port on RealView EB, PB11MP, PBA8
814 and PBX platforms.
815
816 config DEBUG_REALVIEW_PB1176_PORT
817 bool "RealView PB1176 UART"
818 depends on MACH_REALVIEW_PB1176
819 select DEBUG_UART_PL01X
820 help
821 Say Y here if you want the debug print routines to direct
822 their output to the standard serial port on the RealView
823 PB1176 platform.
824
825 config DEBUG_RV1108_UART0
826 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
827 depends on ARCH_ROCKCHIP
828 select DEBUG_UART_8250
829 help
830 Say Y here if you want kernel low-level debugging support
831 on Rockchip RV1108 based platforms.
832
833 config DEBUG_RV1108_UART1
834 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
835 depends on ARCH_ROCKCHIP
836 select DEBUG_UART_8250
837 help
838 Say Y here if you want kernel low-level debugging support
839 on Rockchip RV1108 based platforms.
840
841 config DEBUG_RV1108_UART2
842 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
843 depends on ARCH_ROCKCHIP
844 select DEBUG_UART_8250
845 help
846 Say Y here if you want kernel low-level debugging support
847 on Rockchip RV1108 based platforms.
848
849 config DEBUG_RK29_UART0
850 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
851 depends on ARCH_ROCKCHIP
852 select DEBUG_UART_8250
853 help
854 Say Y here if you want kernel low-level debugging support
855 on Rockchip based platforms.
856
857 config DEBUG_RK29_UART1
858 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
859 depends on ARCH_ROCKCHIP
860 select DEBUG_UART_8250
861 help
862 Say Y here if you want kernel low-level debugging support
863 on Rockchip based platforms.
864
865 config DEBUG_RK29_UART2
866 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
867 depends on ARCH_ROCKCHIP
868 select DEBUG_UART_8250
869 help
870 Say Y here if you want kernel low-level debugging support
871 on Rockchip based platforms.
872
873 config DEBUG_RK3X_UART0
874 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
875 depends on ARCH_ROCKCHIP
876 select DEBUG_UART_8250
877 help
878 Say Y here if you want kernel low-level debugging support
879 on Rockchip based platforms.
880
881 config DEBUG_RK3X_UART1
882 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
883 depends on ARCH_ROCKCHIP
884 select DEBUG_UART_8250
885 help
886 Say Y here if you want kernel low-level debugging support
887 on Rockchip based platforms.
888
889 config DEBUG_RK3X_UART2
890 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
891 depends on ARCH_ROCKCHIP
892 select DEBUG_UART_8250
893 help
894 Say Y here if you want kernel low-level debugging support
895 on Rockchip based platforms.
896
897 config DEBUG_RK3X_UART3
898 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
899 depends on ARCH_ROCKCHIP
900 select DEBUG_UART_8250
901 help
902 Say Y here if you want kernel low-level debugging support
903 on Rockchip based platforms.
904
905 config DEBUG_RK32_UART2
906 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
907 depends on ARCH_ROCKCHIP
908 select DEBUG_UART_8250
909 help
910 Say Y here if you want kernel low-level debugging support
911 on Rockchip RK32xx based platforms.
912
913 config DEBUG_R7S72100_SCIF2
914 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
915 depends on ARCH_R7S72100
916 help
917 Say Y here if you want kernel low-level debugging support
918 via SCIF2 on Renesas RZ/A1H (R7S72100).
919
920 config DEBUG_R7S9210_SCIF2
921 bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
922 depends on ARCH_R7S9210
923 help
924 Say Y here if you want kernel low-level debugging support
925 via SCIF2 on Renesas RZ/A2M (R7S9210).
926
927 config DEBUG_R7S9210_SCIF4
928 bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
929 depends on ARCH_R7S9210
930 help
931 Say Y here if you want kernel low-level debugging support
932 via SCIF4 on Renesas RZ/A2M (R7S9210).
933
934 config DEBUG_RCAR_GEN1_SCIF0
935 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
936 depends on ARCH_R8A7778
937 help
938 Say Y here if you want kernel low-level debugging support
939 via SCIF0 on Renesas R-Car M1A (R8A7778).
940
941 config DEBUG_RCAR_GEN1_SCIF2
942 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
943 depends on ARCH_R8A7779
944 help
945 Say Y here if you want kernel low-level debugging support
946 via SCIF2 on Renesas R-Car H1 (R8A7779).
947
948 config DEBUG_RCAR_GEN2_SCIF0
949 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
950 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
951 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
952 help
953 Say Y here if you want kernel low-level debugging support
954 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
955 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
956 M2-N (R8A7793).
957
958 config DEBUG_RCAR_GEN2_SCIF1
959 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
960 depends on ARCH_R8A77470
961 help
962 Say Y here if you want kernel low-level debugging support
963 via SCIF1 on Renesas RZ/G1C (R8A77470).
964
965 config DEBUG_RCAR_GEN2_SCIF2
966 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
967 depends on ARCH_R8A7794
968 help
969 Say Y here if you want kernel low-level debugging support
970 via SCIF2 on Renesas R-Car E2 (R8A7794).
971
972 config DEBUG_RCAR_GEN2_SCIF4
973 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
974 depends on ARCH_R8A7745
975 help
976 Say Y here if you want kernel low-level debugging support
977 via SCIF4 on Renesas RZ/G1E (R8A7745).
978
979 config DEBUG_RCAR_GEN2_SCIFA2
980 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
981 depends on ARCH_R8A7742
982 help
983 Say Y here if you want kernel low-level debugging support
984 via SCIFA2 on Renesas RZ/G1H (R8A7742).
985
986 config DEBUG_RMOBILE_SCIFA0
987 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
988 depends on ARCH_R8A73A4
989 help
990 Say Y here if you want kernel low-level debugging support
991 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
992
993 config DEBUG_RMOBILE_SCIFA1
994 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
995 depends on ARCH_R8A7740
996 help
997 Say Y here if you want kernel low-level debugging support
998 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
999
1000 config DEBUG_RMOBILE_SCIFA4
1001 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1002 depends on ARCH_SH73A0
1003 help
1004 Say Y here if you want kernel low-level debugging support
1005 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1006
1007 config DEBUG_S3C_UART0
1008 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1009 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1010 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1011 select DEBUG_S5PV210_UART if ARCH_S5PV210
1012 bool "Use Samsung S3C UART 0 for low-level debug"
1013 help
1014 Say Y here if you want the debug print routines to direct
1015 their output to UART 0. The port must have been initialised
1016 by the boot-loader before use.
1017
1018 config DEBUG_S3C_UART1
1019 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1020 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1021 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1022 select DEBUG_S5PV210_UART if ARCH_S5PV210
1023 bool "Use Samsung S3C UART 1 for low-level debug"
1024 help
1025 Say Y here if you want the debug print routines to direct
1026 their output to UART 1. The port must have been initialised
1027 by the boot-loader before use.
1028
1029 config DEBUG_S3C_UART2
1030 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1031 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1032 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1033 select DEBUG_S5PV210_UART if ARCH_S5PV210
1034 bool "Use Samsung S3C UART 2 for low-level debug"
1035 help
1036 Say Y here if you want the debug print routines to direct
1037 their output to UART 2. The port must have been initialised
1038 by the boot-loader before use.
1039
1040 config DEBUG_S3C_UART3
1041 depends on ARCH_EXYNOS || ARCH_S5PV210
1042 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1043 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1044 select DEBUG_S5PV210_UART if ARCH_S5PV210
1045 bool "Use Samsung S3C UART 3 for low-level debug"
1046 help
1047 Say Y here if you want the debug print routines to direct
1048 their output to UART 3. The port must have been initialised
1049 by the boot-loader before use.
1050
1051 config DEBUG_SA1100
1052 depends on ARCH_SA1100
1053 bool "Use SA1100 UARTs for low-level debug"
1054 help
1055 Say Y here if you want kernel low-level debugging support
1056 on SA-11x0 UART ports. The kernel will check for the first
1057 enabled UART in a sequence 3-1-2.
1058
1059 config DEBUG_SD5203_UART
1060 bool "Hisilicon SD5203 Debug UART"
1061 depends on ARCH_SD5203
1062 select DEBUG_UART_8250
1063 help
1064 Say Y here if you want kernel low-level debugging support
1065 on SD5203 UART.
1066
1067 config DEBUG_SOCFPGA_UART0
1068 depends on ARCH_INTEL_SOCFPGA
1069 bool "Use SOCFPGA UART0 for low-level debug"
1070 select DEBUG_UART_8250
1071 help
1072 Say Y here if you want kernel low-level debugging support
1073 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1074
1075 config DEBUG_SOCFPGA_ARRIA10_UART1
1076 depends on ARCH_INTEL_SOCFPGA
1077 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1078 select DEBUG_UART_8250
1079 help
1080 Say Y here if you want kernel low-level debugging support
1081 on SOCFPGA(Arria 10) based platforms.
1082
1083 config DEBUG_SOCFPGA_CYCLONE5_UART1
1084 depends on ARCH_INTEL_SOCFPGA
1085 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1086 select DEBUG_UART_8250
1087 help
1088 Say Y here if you want kernel low-level debugging support
1089 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1090
1091 config DEBUG_SUN9I_UART0
1092 bool "Kernel low-level debugging messages via sun9i UART0"
1093 depends on MACH_SUN9I
1094 select DEBUG_UART_8250
1095 help
1096 Say Y here if you want kernel low-level debugging support
1097 on Allwinner A80 based platforms on the UART0.
1098
1099 config DEBUG_SUNXI_UART0
1100 bool "Kernel low-level debugging messages via sunXi UART0"
1101 depends on ARCH_SUNXI
1102 select DEBUG_UART_8250
1103 help
1104 Say Y here if you want kernel low-level debugging support
1105 on Allwinner A1X based platforms on the UART0.
1106
1107 config DEBUG_SUNXI_UART1
1108 bool "Kernel low-level debugging messages via sunXi UART1"
1109 depends on ARCH_SUNXI
1110 select DEBUG_UART_8250
1111 help
1112 Say Y here if you want kernel low-level debugging support
1113 on Allwinner A1X based platforms on the UART1.
1114
1115 config DEBUG_SUNXI_R_UART
1116 bool "Kernel low-level debugging messages via sunXi R_UART"
1117 depends on MACH_SUN6I || MACH_SUN8I
1118 select DEBUG_UART_8250
1119 help
1120 Say Y here if you want kernel low-level debugging support
1121 on Allwinner A31/A23 based platforms on the R_UART.
1122
1123 config DEBUG_SPEAR3XX
1124 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1125 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1126 select DEBUG_UART_PL01X
1127 help
1128 Say Y here if you want kernel low-level debugging support
1129 on ST SPEAr based platforms.
1130
1131 config DEBUG_SPEAR13XX
1132 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1133 depends on ARCH_SPEAR13XX
1134 select DEBUG_UART_PL01X
1135 help
1136 Say Y here if you want kernel low-level debugging support
1137 on ST SPEAr13xx based platforms.
1138
1139 config DEBUG_STIH41X_ASC2
1140 bool "Use StiH415/416 ASC2 UART for low-level debug"
1141 depends on ARCH_STI
1142 help
1143 Say Y here if you want kernel low-level debugging support
1144 on STiH415/416 based platforms like b2000, which has
1145 default UART wired up to ASC2.
1146
1147 If unsure, say N.
1148
1149 config DEBUG_STIH41X_SBC_ASC1
1150 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1151 depends on ARCH_STI
1152 help
1153 Say Y here if you want kernel low-level debugging support
1154 on STiH415/416 based platforms like b2020. which has
1155 default UART wired up to SBC ASC1.
1156
1157 If unsure, say N.
1158
1159 config DEBUG_STIH418_SBC_ASC0
1160 bool "Use StiH418 SBC ASC0 UART for low-level debug"
1161 depends on ARCH_STI
1162 help
1163 Say Y here if you want kernel low-level debugging support
1164 on STiH418 based platforms which has default UART wired
1165 up to SBC ASC0.
1166
1167 If unsure, say N.
1168
1169 config STM32F4_DEBUG_UART
1170 bool "Use STM32F4 UART for low-level debug"
1171 depends on MACH_STM32F429 || MACH_STM32F469
1172 select DEBUG_STM32_UART
1173 help
1174 Say Y here if you want kernel low-level debugging support
1175 on STM32F4 based platforms, which default UART is wired on
1176 USART1, but another UART instance can be selected by modifying
1177 CONFIG_DEBUG_UART_PHYS.
1178
1179 If unsure, say N.
1180
1181 config STM32F7_DEBUG_UART
1182 bool "Use STM32F7 UART for low-level debug"
1183 depends on MACH_STM32F746 || MACH_STM32F769
1184 select DEBUG_STM32_UART
1185 help
1186 Say Y here if you want kernel low-level debugging support
1187 on STM32F7 based platforms, which default UART is wired on
1188 USART1, but another UART instance can be selected by modifying
1189 CONFIG_DEBUG_UART_PHYS.
1190
1191 If unsure, say N.
1192
1193 config STM32H7_DEBUG_UART
1194 bool "Use STM32H7 UART for low-level debug"
1195 depends on MACH_STM32H743
1196 select DEBUG_STM32_UART
1197 help
1198 Say Y here if you want kernel low-level debugging support
1199 on STM32H7 based platforms, which default UART is wired on
1200 USART1, but another UART instance can be selected by modifying
1201 CONFIG_DEBUG_UART_PHYS.
1202
1203 If unsure, say N.
1204
1205 config STM32MP1_DEBUG_UART
1206 bool "Use STM32MP1 UART for low-level debug"
1207 depends on MACH_STM32MP157
1208 select DEBUG_STM32_UART
1209 help
1210 Say Y here if you want kernel low-level debugging support on
1211 STM32MP1-based platforms, where the default UART is wired to
1212 UART4, but another UART instance can be selected by modifying
1213 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1214
1215 If unsure, say N.
1216
1217 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1218 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1219 depends on ARCH_TEGRA
1220 select DEBUG_TEGRA_UART
1221 help
1222 Automatically determines which UART to use for low-level
1223 debug based on the ODMDATA value. This value is part of
1224 the BCT, and is written to the boot memory device using
1225 nvflash, or other flashing tool. When bits 19:18 are 3,
1226 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1227 are UART A/B/C/D/E.
1228
1229 config TEGRA_DEBUG_UARTA
1230 bool "Kernel low-level debugging messages via Tegra UART A"
1231 depends on ARCH_TEGRA
1232 select DEBUG_TEGRA_UART
1233 help
1234 Say Y here if you want kernel low-level debugging support
1235 on Tegra based platforms.
1236
1237 config TEGRA_DEBUG_UARTB
1238 bool "Kernel low-level debugging messages via Tegra UART B"
1239 depends on ARCH_TEGRA
1240 select DEBUG_TEGRA_UART
1241 help
1242 Say Y here if you want kernel low-level debugging support
1243 on Tegra based platforms.
1244
1245 config TEGRA_DEBUG_UARTC
1246 bool "Kernel low-level debugging messages via Tegra UART C"
1247 depends on ARCH_TEGRA
1248 select DEBUG_TEGRA_UART
1249 help
1250 Say Y here if you want kernel low-level debugging support
1251 on Tegra based platforms.
1252
1253 config TEGRA_DEBUG_UARTD
1254 bool "Kernel low-level debugging messages via Tegra UART D"
1255 depends on ARCH_TEGRA
1256 select DEBUG_TEGRA_UART
1257 help
1258 Say Y here if you want kernel low-level debugging support
1259 on Tegra based platforms.
1260
1261 config TEGRA_DEBUG_UARTE
1262 bool "Kernel low-level debugging messages via Tegra UART E"
1263 depends on ARCH_TEGRA
1264 select DEBUG_TEGRA_UART
1265 help
1266 Say Y here if you want kernel low-level debugging support
1267 on Tegra based platforms.
1268
1269 config DEBUG_UX500_UART
1270 depends on ARCH_U8500
1271 bool "Use Ux500 UART for low-level debug"
1272 help
1273 Say Y here if you want kernel low-level debugging support
1274 on Ux500 based platforms.
1275
1276 config DEBUG_VERSATILE
1277 bool "Kernel low-level debugging messages via ARM Versatile UART"
1278 depends on ARCH_VERSATILE
1279 select DEBUG_UART_PL01X
1280 help
1281 Say Y here if you want kernel low-level debugging support
1282 on ARM Versatile platforms.
1283
1284 config DEBUG_VEXPRESS_UART0_DETECT
1285 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1286 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1287 help
1288 This option enables a simple heuristic which tries to determine
1289 the motherboard's memory map variant (original or RS1) and then
1290 choose the relevant UART0 base address.
1291
1292 Note that this will only work with standard A-class core tiles,
1293 and may fail with non-standard SMM or custom software models.
1294
1295 config DEBUG_VEXPRESS_UART0_CA9
1296 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1297 depends on ARCH_VEXPRESS
1298 select DEBUG_UART_PL01X
1299 help
1300 This option selects UART0 at 0x10009000. Except for custom models,
1301 this applies only to the V2P-CA9 tile.
1302
1303 config DEBUG_VEXPRESS_UART0_RS1
1304 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1305 depends on ARCH_VEXPRESS
1306 select DEBUG_UART_PL01X
1307 help
1308 This option selects UART0 at 0x1c090000. This applies to most
1309 of the tiles using the RS1 memory map, including all new A-class
1310 core tiles, FPGA-based SMMs and software models.
1311
1312 config DEBUG_VEXPRESS_UART0_CRX
1313 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1314 depends on ARCH_VEXPRESS && !MMU
1315 select DEBUG_UART_PL01X
1316 help
1317 This option selects UART0 at 0xb0090000. This is appropriate for
1318 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1319
1320 config DEBUG_VF_UART
1321 bool "Vybrid UART"
1322 depends on SOC_VF610
1323 help
1324 Say Y here if you want kernel low-level debugging support
1325 on Vybrid based platforms.
1326
1327 config DEBUG_VT8500_UART0
1328 bool "Use UART0 on VIA/Wondermedia SoCs"
1329 depends on ARCH_VT8500
1330 help
1331 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1332 devices, including VT8500, WM8505, WM8650 and WM8850.
1333
1334 config DEBUG_ZYNQ_UART0
1335 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1336 depends on ARCH_ZYNQ
1337 help
1338 Say Y here if you want the debug print routines to direct
1339 their output to UART0 on the Zynq platform.
1340
1341 config DEBUG_ZYNQ_UART1
1342 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1343 depends on ARCH_ZYNQ
1344 help
1345 Say Y here if you want the debug print routines to direct
1346 their output to UART1 on the Zynq platform.
1347
1348 If you have a ZC702 board and want early boot messages to
1349 appear on the USB serial adaptor, select this option.
1350
1351 config DEBUG_ICEDCC
1352 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1353 help
1354 Say Y here if you want the debug print routines to direct
1355 their output to the EmbeddedICE macrocell's DCC channel using
1356 co-processor 14. This is known to work on the ARM9 style ICE
1357 channel and on the XScale with the PEEDI.
1358
1359 Note that the system will appear to hang during boot if there
1360 is nothing connected to read from the DCC.
1361
1362 config DEBUG_SEMIHOSTING
1363 bool "Kernel low-level debug output via semihosting I/O"
1364 help
1365 Semihosting enables code running on an ARM target to use
1366 the I/O facilities on a host debugger/emulator through a
1367 simple SVC call. The host debugger or emulator must have
1368 semihosting enabled for the special svc call to be trapped
1369 otherwise the kernel will crash.
1370
1371 This is known to work with OpenOCD, as well as
1372 ARM's Fast Models, or any other controlling environment
1373 that implements semihosting.
1374
1375 For more details about semihosting, please see
1376 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1377
1378 config DEBUG_LL_UART_8250
1379 bool "Kernel low-level debugging via 8250 UART"
1380 help
1381 Say Y here if you wish the debug print routes to direct
1382 their output to an 8250 UART. You can use this option
1383 to provide the parameters for the 8250 UART rather than
1384 selecting one of the platform specific options above if
1385 you know the parameters for the port.
1386
1387 This option is preferred over the platform specific
1388 options; the platform specific options are deprecated
1389 and will be soon removed.
1390
1391 config DEBUG_LL_UART_PL01X
1392 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1393 help
1394 Say Y here if you wish the debug print routes to direct
1395 their output to a PL01x Primecell UART. You can use
1396 this option to provide the parameters for the UART
1397 rather than selecting one of the platform specific
1398 options above if you know the parameters for the port.
1399
1400 This option is preferred over the platform specific
1401 options; the platform specific options are deprecated
1402 and will be soon removed.
1403
1404endchoice
1405
1406config DEBUG_AT91_UART
1407 bool
1408 depends on ARCH_AT91
1409
1410config DEBUG_EXYNOS_UART
1411 bool
1412
1413config DEBUG_S3C64XX_UART
1414 bool
1415
1416config DEBUG_S5PV210_UART
1417 bool
1418
1419config DEBUG_S3C_UART
1420 depends on DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \
1421 DEBUG_EXYNOS_UART
1422 int
1423 default "0" if DEBUG_S3C_UART0
1424 default "1" if DEBUG_S3C_UART1
1425 default "2" if DEBUG_S3C_UART2
1426 default "3" if DEBUG_S3C_UART3
1427
1428config DEBUG_OMAP2PLUS_UART
1429 bool
1430 depends on ARCH_OMAP2PLUS
1431
1432config DEBUG_IMX_UART_PORT
1433 int "i.MX Debug UART Port Selection"
1434 depends on DEBUG_IMX1_UART || \
1435 DEBUG_IMX25_UART || \
1436 DEBUG_IMX27_UART || \
1437 DEBUG_IMX31_UART || \
1438 DEBUG_IMX35_UART || \
1439 DEBUG_IMX50_UART || \
1440 DEBUG_IMX51_UART || \
1441 DEBUG_IMX53_UART || \
1442 DEBUG_IMX6Q_UART || \
1443 DEBUG_IMX6SL_UART || \
1444 DEBUG_IMX6SX_UART || \
1445 DEBUG_IMX6UL_UART || \
1446 DEBUG_IMX7D_UART
1447 default 1
1448 help
1449 Choose UART port on which kernel low-level debug messages
1450 should be output.
1451
1452config DEBUG_VF_UART_PORT
1453 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1454 default 1
1455 range 0 3
1456 depends on SOC_VF610
1457 help
1458 Choose UART port on which kernel low-level debug messages
1459 should be output.
1460
1461config DEBUG_TEGRA_UART
1462 bool
1463 depends on ARCH_TEGRA
1464
1465config DEBUG_STM32_UART
1466 bool
1467 depends on ARCH_STM32
1468
1469config DEBUG_UART_FLOW_CONTROL
1470 bool "Enable flow control (CTS) for the debug UART"
1471 depends on DEBUG_LL
1472 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1473 help
1474 Some UART ports are connected to terminals that will use modem
1475 control signals to indicate whether they are ready to receive text.
1476 In practice this means that the terminal is asserting the special
1477 control signal CTS (Clear To Send). If your debug UART supports
1478 this and your debug terminal will require it, enable this option.
1479
1480config DEBUG_LL_INCLUDE
1481 string
1482 default "debug/sa1100.S" if DEBUG_SA1100
1483 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1484 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1485 default "debug/at91.S" if DEBUG_AT91_UART
1486 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1487 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1488 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1489 default "debug/meson.S" if DEBUG_MESON_UARTAO
1490 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1491 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1492 default "debug/icedcc.S" if DEBUG_ICEDCC
1493 default "debug/imx.S" if DEBUG_IMX1_UART || \
1494 DEBUG_IMX25_UART || \
1495 DEBUG_IMX27_UART || \
1496 DEBUG_IMX31_UART || \
1497 DEBUG_IMX35_UART || \
1498 DEBUG_IMX50_UART || \
1499 DEBUG_IMX51_UART || \
1500 DEBUG_IMX53_UART || \
1501 DEBUG_IMX6Q_UART || \
1502 DEBUG_IMX6SL_UART || \
1503 DEBUG_IMX6SX_UART || \
1504 DEBUG_IMX6UL_UART || \
1505 DEBUG_IMX7D_UART
1506 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1507 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1508 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1509 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1510 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1511 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1512 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1513 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1514 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1515 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1516 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1517 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1518 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1519 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1520 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1521 default "debug/s3c24xx.S" if DEBUG_S3C64XX_UART
1522 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1523 default "debug/sti.S" if DEBUG_STIH41X_ASC2
1524 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1525 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1526 default "debug/stm32.S" if DEBUG_STM32_UART
1527 default "debug/tegra.S" if DEBUG_TEGRA_UART
1528 default "debug/ux500.S" if DEBUG_UX500_UART
1529 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1530 default "debug/vf.S" if DEBUG_VF_UART
1531 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1532 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1533 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART || DEBUG_BCMBCA
1534 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1535 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1536 default "mach/debug-macro.S"
1537
1538# Compatibility options for PL01x
1539config DEBUG_UART_PL01X
1540 bool
1541
1542# Compatibility options for 8250
1543config DEBUG_UART_8250
1544 def_bool ARCH_IXP4XX || ARCH_RPC
1545
1546config DEBUG_UART_PHYS
1547 hex "Physical base address of debug UART"
1548 default 0x01c28000 if DEBUG_SUNXI_UART0
1549 default 0x01c28400 if DEBUG_SUNXI_UART1
1550 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1551 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1552 default 0x01f02800 if DEBUG_SUNXI_R_UART
1553 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1554 default 0x02531000 if DEBUG_KEYSTONE_UART1
1555 default 0x03010fe0 if ARCH_RPC
1556 default 0x07000000 if DEBUG_SUN9I_UART0
1557 default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1558 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1559 DEBUG_VEXPRESS_UART0_CA9
1560 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1561 default 0x10124000 if DEBUG_RK3X_UART0
1562 default 0x10126000 if DEBUG_RK3X_UART1
1563 default 0x101f1000 if DEBUG_VERSATILE
1564 default 0x101fb000 if DEBUG_NOMADIK_UART
1565 default 0x10210000 if DEBUG_RV1108_UART2
1566 default 0x10220000 if DEBUG_RV1108_UART1
1567 default 0x10230000 if DEBUG_RV1108_UART0
1568 default 0x11002000 if DEBUG_MT8127_UART0
1569 default 0x11006000 if DEBUG_MT6589_UART0
1570 default 0x11009000 if DEBUG_MT8135_UART3
1571 default 0x16000000 if DEBUG_INTEGRATOR
1572 default 0x1600d000 if DEBUG_SD5203_UART
1573 default 0x18000300 if DEBUG_BCM_5301X
1574 default 0x18000400 if DEBUG_BCM_HR2
1575 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1576 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1577 default 0x1f221000 if DEBUG_MSTARV7_PMUART
1578 default 0x20001000 if DEBUG_HIP01_UART
1579 default 0x20060000 if DEBUG_RK29_UART0
1580 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1581 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1582 default 0x20201000 if DEBUG_BCM2835
1583 default 0x3e000000 if DEBUG_BCM_KONA_UART
1584 default 0x3f201000 if DEBUG_BCM2836
1585 default 0x40010000 if STM32MP1_DEBUG_UART
1586 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1587 STM32H7_DEBUG_UART
1588 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1589 default 0x40081000 if DEBUG_LPC18XX_UART0
1590 default 0x40090000 if DEBUG_LPC32XX
1591 default 0x40100000 if DEBUG_PXA_UART1
1592 default 0x42000000 if DEBUG_GEMINI
1593 default 0x44e09000 if DEBUG_AM33XXUART1
1594 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1595 default 0x48022000 if DEBUG_TI81XXUART2
1596 default 0x48024000 if DEBUG_TI81XXUART3
1597 default 0x4806a000 if DEBUG_OMAP2UART1
1598 default 0x4806c000 if DEBUG_OMAP2UART2
1599 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1600 default 0x49020000 if DEBUG_OMAP3UART3
1601 default 0x49042000 if DEBUG_OMAP3UART4
1602 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1603 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1604 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1605 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1606 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1607 default 0x80010000 if DEBUG_ASM9260_UART
1608 default 0x80070000 if DEBUG_IMX23_UART
1609 default 0x80074000 if DEBUG_IMX28_UART
1610 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1611 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1612 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1613 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1614 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1615 default 0xd0000000 if DEBUG_SPEAR3XX
1616 default 0xd0012000 if DEBUG_MVEBU_UART0
1617 default 0xc81004c0 if DEBUG_MESON_UARTAO
1618 default 0xd4017000 if DEBUG_MMP_UART2
1619 default 0xd4018000 if DEBUG_MMP_UART3
1620 default 0xe0000000 if DEBUG_SPEAR13XX
1621 default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM
1622 default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1623 default 0xe4007000 if DEBUG_HIP04_UART
1624 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1625 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1626 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1627 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1628 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1629 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1630 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1631 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1632 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1633 default 0xe8009000 if DEBUG_R7S9210_SCIF4
1634 default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1635 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1636 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1637 default 0xf7fc9000 if DEBUG_BERLIN_UART
1638 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1639 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1640 default 0xf991e000 if DEBUG_QCOM_UARTDM
1641 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1642 default 0xfcb00000 if DEBUG_HI3620_UART
1643 default 0xfd883000 if DEBUG_ALPINE_UART0
1644 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1645 default 0xfed32000 if DEBUG_STIH41X_ASC2
1646 default 0xff690000 if DEBUG_RK32_UART2
1647 default 0xff800640 if DEBUG_BCMBCA
1648 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1649 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1650 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1651 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1652 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1653 default 0xfff36000 if DEBUG_HIGHBANK_UART
1654 default 0xfffb0000 if DEBUG_OMAP1UART1
1655 default 0xfffb0800 if DEBUG_OMAP1UART2
1656 default 0xfffb9800 if DEBUG_OMAP1UART3
1657 default 0xfffe8600 if DEBUG_BCM63XX_UART
1658 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1659 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1660 depends on ARCH_EP93XX || \
1661 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1662 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1663 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1664 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1665 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1666 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1667 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1668 DEBUG_RCAR_GEN2_SCIFA2 || \
1669 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1670 DEBUG_RMOBILE_SCIFA4 || \
1671 DEBUG_S3C64XX_UART || \
1672 DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \
1673 DEBUG_DIGICOLOR_UA0 || \
1674 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1675 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1676 DEBUG_STIH418_SBC_ASC0
1677
1678config DEBUG_UART_VIRT
1679 hex "Virtual base address of debug UART"
1680 default 0xc881f000 if DEBUG_RV1108_UART2
1681 default 0xc8821000 if DEBUG_RV1108_UART1
1682 default 0xc8912000 if DEBUG_RV1108_UART0
1683 default 0xe0010fe0 if ARCH_RPC
1684 default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1685 default 0xf0010000 if DEBUG_ASM9260_UART
1686 default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1687 default 0xf01fb000 if DEBUG_NOMADIK_UART
1688 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1689 default 0xf0221000 if DEBUG_MSTARV7_PMUART
1690 default 0xf1000300 if DEBUG_BCM_5301X
1691 default 0xf1000400 if DEBUG_BCM_HR2
1692 default 0xf1002000 if DEBUG_MT8127_UART0
1693 default 0xf1006000 if DEBUG_MT6589_UART0
1694 default 0xf1009000 if DEBUG_MT8135_UART3
1695 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1696 default 0xf11f1000 if DEBUG_VERSATILE
1697 default 0xf1600000 if DEBUG_INTEGRATOR
1698 default 0xf1c28000 if DEBUG_SUNXI_UART0
1699 default 0xf1c28400 if DEBUG_SUNXI_UART1
1700 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1701 default 0xf31004c0 if DEBUG_MESON_UARTAO
1702 default 0xf4090000 if DEBUG_LPC32XX
1703 default 0xf4200000 if DEBUG_GEMINI
1704 default 0xf6200000 if DEBUG_PXA_UART1
1705 default 0xf7000000 if DEBUG_SUN9I_UART0
1706 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1707 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1708 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1709 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1710 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1711 default 0xf7fc9000 if DEBUG_BERLIN_UART
1712 default 0xf8007000 if DEBUG_HIP04_UART
1713 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1714 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1715 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1716 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1717 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1718 default 0xf9e09000 if DEBUG_AM33XXUART1
1719 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1720 default 0xfa022000 if DEBUG_TI81XXUART2
1721 default 0xfa024000 if DEBUG_TI81XXUART3
1722 default 0xfa06a000 if DEBUG_OMAP2UART1
1723 default 0xfa06c000 if DEBUG_OMAP2UART2
1724 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1725 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1726 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1727 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1728 default 0xfb020000 if DEBUG_OMAP3UART3
1729 default 0xfb042000 if DEBUG_OMAP3UART4
1730 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1731 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1732 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1733 default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM
1734 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1735 default 0xfd883000 if DEBUG_ALPINE_UART0
1736 default 0xfdd32000 if DEBUG_STIH41X_ASC2
1737 default 0xfe010000 if STM32MP1_DEBUG_UART
1738 default 0xfe017000 if DEBUG_MMP_UART2
1739 default 0xfe018000 if DEBUG_MMP_UART3
1740 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1741 default 0xfe300000 if DEBUG_BCM_KONA_UART
1742 default 0xfe300640 if DEBUG_BCMBCA
1743 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1744 default 0xfeb24000 if DEBUG_RK3X_UART0
1745 default 0xfeb26000 if DEBUG_RK3X_UART1
1746 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1747 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1748 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1749 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1750 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1751 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1752 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1753 default 0xfec90000 if DEBUG_RK32_UART2
1754 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1755 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1756 default 0xfed60000 if DEBUG_RK29_UART0
1757 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1758 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1759 default 0xfedc0000 if DEBUG_EP93XX
1760 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1761 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1762 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1763 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1764 default 0xfef36000 if DEBUG_HIGHBANK_UART
1765 default 0xff0b0000 if DEBUG_OMAP1UART1
1766 default 0xff0b0800 if DEBUG_OMAP1UART2
1767 default 0xff0b9800 if DEBUG_OMAP1UART3
1768 default 0xffd01000 if DEBUG_HIP01_UART
1769 default DEBUG_UART_PHYS if !MMU
1770 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1771 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1772 DEBUG_QCOM_UARTDM || \
1773 DEBUG_S3C64XX_UART || \
1774 DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \
1775 DEBUG_DIGICOLOR_UA0 || \
1776 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1777 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1778 DEBUG_STIH418_SBC_ASC0
1779
1780config DEBUG_UART_8250_SHIFT
1781 int "Register offset shift for the 8250 debug UART"
1782 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1783 default 0 if DEBUG_FOOTBRIDGE_COM1 || DEBUG_BCM_5301X || \
1784 DEBUG_BCM_HR2
1785 default 3 if DEBUG_MSTARV7_PMUART
1786 default 2
1787
1788config DEBUG_UART_8250_WORD
1789 bool "Use 32-bit accesses for 8250 UART"
1790 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1791 depends on DEBUG_UART_8250_SHIFT >= 2
1792 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1793 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1794 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1795 DEBUG_DAVINCI_DA8XX_UART1 || DEBUG_DAVINCI_DA8XX_UART2 || \
1796 DEBUG_BCM_IPROC_UART3 || DEBUG_BCM_KONA_UART || \
1797 DEBUG_RK32_UART2
1798
1799config DEBUG_UART_8250_PALMCHIP
1800 bool "8250 UART is Palmchip BK-310x"
1801 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1802 help
1803 Palmchip provides a UART implementation compatible with 16550
1804 except for having a different register layout. Say Y here if
1805 the debug UART is of this type.
1806
1807config DEBUG_UNCOMPRESS
1808 bool "Enable decompressor debugging via DEBUG_LL output"
1809 depends on !ARCH_MULTIPLATFORM
1810 depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
1811 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1812 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1813 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1814 help
1815 Say Y here to enable debug output in the decompressor code, using
1816 the selected DEBUG_LL output method.
1817
1818config UNCOMPRESS_INCLUDE
1819 string
1820 default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
1821 default "debug/uncompress.h"
1822
1823config EARLY_PRINTK
1824 bool "Early printk"
1825 depends on DEBUG_LL
1826 help
1827 Say Y here if you want to have an early console using the
1828 kernel low-level debugging functions. Add earlyprintk to your
1829 kernel parameters to enable this console.
1830
1831config ARM_KPROBES_TEST
1832 tristate "Kprobes test module"
1833 depends on KPROBES && MODULES
1834 help
1835 Perform tests of kprobes API and instruction set simulation.
1836
1837config PID_IN_CONTEXTIDR
1838 bool "Write the current PID to the CONTEXTIDR register"
1839 depends on CPU_COPY_V6
1840 help
1841 Enabling this option causes the kernel to write the current PID to
1842 the PROCID field of the CONTEXTIDR register, at the expense of some
1843 additional instructions during context switch. Say Y here only if you
1844 are planning to use hardware trace tools with this kernel.
1845
1846source "drivers/hwtracing/coresight/Kconfig"
Linux 6.x block layer and io_uring tree(s)