1 # SPDX-License-Identifier: GPL-2.0
2
3 config ARM_PTDUMP_CORE
4 def_bool n
5
6 config 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
20 config 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
48 choice
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
57 config 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
66 config 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
77 endchoice
78
79 config ARM_UNWIND
80 bool
81
82 config 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
93 config 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.
111 config 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
124 choice
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_BCM_HR2
246 bool "Kernel low-level debugging on Hurricane 2 UART2"
247 depends on ARCH_BCM_HR2
248 select DEBUG_UART_8250
249
250 config DEBUG_BCM_IPROC_UART3
251 bool "Kernel low-level debugging on BCM IPROC UART3"
252 depends on ARCH_BCM_CYGNUS
253 select DEBUG_UART_8250
254 help
255 Say Y here if you want the debug print routines to direct
256 their output to the third serial port on these devices.
257
258 config DEBUG_BCM_KONA_UART
259 bool "Kernel low-level debugging messages via BCM KONA UART"
260 depends on ARCH_BCM_MOBILE
261 select DEBUG_UART_8250
262 help
263 Say Y here if you want kernel low-level debugging support
264 on Broadcom SoC platforms.
265 This low level debug works for Broadcom
266 mobile SoCs in the Kona family of chips (e.g. bcm28155,
267 bcm11351, etc...)
268
269 config DEBUG_BCM63XX_UART
270 bool "Kernel low-level debugging on BCM63XX UART"
271 depends on ARCH_BCMBCA
272
273 config DEBUG_BERLIN_UART
274 bool "Marvell Berlin SoC Debug UART"
275 depends on ARCH_BERLIN
276 select DEBUG_UART_8250
277 help
278 Say Y here if you want kernel low-level debugging support
279 on Marvell Berlin SoC based platforms.
280
281 config DEBUG_BRCMSTB_UART
282 bool "Use BRCMSTB UART for low-level debug"
283 depends on ARCH_BRCMSTB
284 help
285 Say Y here if you want the debug print routines to direct
286 their output to the first serial port on these devices. The
287 UART physical and virtual address is automatically provided
288 based on the chip identification register value.
289
290 If you have a Broadcom STB chip and would like early print
291 messages to appear over the UART, select this option.
292
293 config DEBUG_CLPS711X_UART1
294 bool "Kernel low-level debugging messages via UART1"
295 depends on ARCH_CLPS711X
296 help
297 Say Y here if you want the debug print routines to direct
298 their output to the first serial port on these devices.
299
300 config DEBUG_CLPS711X_UART2
301 bool "Kernel low-level debugging messages via UART2"
302 depends on ARCH_CLPS711X
303 help
304 Say Y here if you want the debug print routines to direct
305 their output to the second serial port on these devices.
306
307 config DEBUG_DAVINCI_DA8XX_UART1
308 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
309 depends on ARCH_DAVINCI_DA8XX
310 select DEBUG_UART_8250
311 help
312 Say Y here if you want the debug print routines to direct
313 their output to UART1 serial port on DaVinci DA8XX devices.
314
315 config DEBUG_DAVINCI_DA8XX_UART2
316 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
317 depends on ARCH_DAVINCI_DA8XX
318 select DEBUG_UART_8250
319 help
320 Say Y here if you want the debug print routines to direct
321 their output to UART2 serial port on DaVinci DA8XX devices.
322
323 config DEBUG_DC21285_PORT
324 bool "Kernel low-level debugging messages via footbridge serial port"
325 depends on FOOTBRIDGE
326 help
327 Say Y here if you want the debug print routines to direct
328 their output to the serial port in the DC21285 (Footbridge).
329
330 config DEBUG_DIGICOLOR_UA0
331 bool "Kernel low-level debugging messages via Digicolor UA0"
332 depends on ARCH_DIGICOLOR
333 help
334 Say Y here if you want the debug print routines to direct
335 their output to the UA0 serial port in the CX92755.
336
337 config DEBUG_EP93XX
338 bool "Kernel low-level debugging messages via ep93xx UART"
339 depends on ARCH_EP93XX
340 select DEBUG_UART_PL01X
341 help
342 Say Y here if you want kernel low-level debugging support
343 on Cirrus Logic EP93xx based platforms.
344
345 config DEBUG_FOOTBRIDGE_COM1
346 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
347 depends on FOOTBRIDGE
348 select DEBUG_UART_8250
349 help
350 Say Y here if you want the debug print routines to direct
351 their output to the 8250 at PCI COM1.
352
353 config DEBUG_GEMINI
354 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
355 depends on ARCH_GEMINI
356 select DEBUG_UART_8250
357 help
358 Say Y here if you want kernel low-level debugging support
359 on Cortina Gemini based platforms.
360
361 config DEBUG_HI3620_UART
362 bool "Hisilicon HI3620 Debug UART"
363 depends on ARCH_HI3xxx
364 select DEBUG_UART_PL01X
365 help
366 Say Y here if you want kernel low-level debugging support
367 on HI3620 UART.
368
369 config DEBUG_HIGHBANK_UART
370 bool "Kernel low-level debugging messages via Highbank UART"
371 depends on ARCH_HIGHBANK
372 select DEBUG_UART_PL01X
373 help
374 Say Y here if you want the debug print routines to direct
375 their output to the UART on Highbank based devices.
376
377 config DEBUG_HIP01_UART
378 bool "Hisilicon Hip01 Debug UART"
379 depends on ARCH_HIP01
380 select DEBUG_UART_8250
381 help
382 Say Y here if you want kernel low-level debugging support
383 on HIP01 UART.
384
385 config DEBUG_HIP04_UART
386 bool "Hisilicon HiP04 Debug UART"
387 depends on ARCH_HIP04
388 select DEBUG_UART_8250
389 help
390 Say Y here if you want kernel low-level debugging support
391 on HIP04 UART.
392
393 config DEBUG_HIX5HD2_UART
394 bool "Hisilicon Hix5hd2 Debug UART"
395 depends on ARCH_HIX5HD2
396 select DEBUG_UART_PL01X
397 help
398 Say Y here if you want kernel low-level debugging support
399 on Hix5hd2 UART.
400
401 config DEBUG_IMX1_UART
402 bool "i.MX1 Debug UART"
403 depends on SOC_IMX1
404 help
405 Say Y here if you want kernel low-level debugging support
406 on i.MX1.
407
408 config DEBUG_IMX23_UART
409 bool "i.MX23 Debug UART"
410 depends on SOC_IMX23
411 select DEBUG_UART_PL01X
412 help
413 Say Y here if you want kernel low-level debugging support
414 on i.MX23.
415
416 config DEBUG_IMX25_UART
417 bool "i.MX25 Debug UART"
418 depends on SOC_IMX25
419 help
420 Say Y here if you want kernel low-level debugging support
421 on i.MX25.
422
423 config DEBUG_IMX27_UART
424 bool "i.MX27 Debug UART"
425 depends on SOC_IMX27
426 help
427 Say Y here if you want kernel low-level debugging support
428 on i.MX27.
429
430 config DEBUG_IMX28_UART
431 bool "i.MX28 Debug UART"
432 depends on SOC_IMX28
433 select DEBUG_UART_PL01X
434 help
435 Say Y here if you want kernel low-level debugging support
436 on i.MX28.
437
438 config DEBUG_IMX31_UART
439 bool "i.MX31 Debug UART"
440 depends on SOC_IMX31
441 help
442 Say Y here if you want kernel low-level debugging support
443 on i.MX31.
444
445 config DEBUG_IMX35_UART
446 bool "i.MX35 Debug UART"
447 depends on SOC_IMX35
448 help
449 Say Y here if you want kernel low-level debugging support
450 on i.MX35.
451
452 config DEBUG_IMX50_UART
453 bool "i.MX50 Debug UART"
454 depends on SOC_IMX50
455 help
456 Say Y here if you want kernel low-level debugging support
457 on i.MX50.
458
459 config DEBUG_IMX51_UART
460 bool "i.MX51 Debug UART"
461 depends on SOC_IMX51
462 help
463 Say Y here if you want kernel low-level debugging support
464 on i.MX51.
465
466 config DEBUG_IMX53_UART
467 bool "i.MX53 Debug UART"
468 depends on SOC_IMX53
469 help
470 Say Y here if you want kernel low-level debugging support
471 on i.MX53.
472
473 config DEBUG_IMX6Q_UART
474 bool "i.MX6Q/DL Debug UART"
475 depends on SOC_IMX6Q
476 help
477 Say Y here if you want kernel low-level debugging support
478 on i.MX6Q/DL.
479
480 config DEBUG_IMX6SL_UART
481 bool "i.MX6SL Debug UART"
482 depends on SOC_IMX6SL
483 help
484 Say Y here if you want kernel low-level debugging support
485 on i.MX6SL.
486
487 config DEBUG_IMX6SX_UART
488 bool "i.MX6SX Debug UART"
489 depends on SOC_IMX6SX
490 help
491 Say Y here if you want kernel low-level debugging support
492 on i.MX6SX.
493
494 config DEBUG_IMX6UL_UART
495 bool "i.MX6UL Debug UART"
496 depends on SOC_IMX6UL
497 help
498 Say Y here if you want kernel low-level debugging support
499 on i.MX6UL.
500
501 config DEBUG_IMX7D_UART
502 bool "i.MX7D Debug UART"
503 depends on SOC_IMX7D
504 help
505 Say Y here if you want kernel low-level debugging support
506 on i.MX7D.
507
508 config DEBUG_INTEGRATOR
509 bool "Kernel low-level debugging messages via ARM Integrator UART"
510 depends on ARCH_INTEGRATOR
511 select DEBUG_UART_PL01X
512 help
513 Say Y here if you want kernel low-level debugging support
514 on ARM Integrator platforms.
515
516 config DEBUG_KEYSTONE_UART0
517 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
518 depends on ARCH_KEYSTONE
519 select DEBUG_UART_8250
520 help
521 Say Y here if you want the debug print routines to direct
522 their output to UART0 serial port on KEYSTONE2 devices.
523
524 config DEBUG_KEYSTONE_UART1
525 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
526 depends on ARCH_KEYSTONE
527 select DEBUG_UART_8250
528 help
529 Say Y here if you want the debug print routines to direct
530 their output to UART1 serial port on KEYSTONE2 devices.
531
532 config DEBUG_LPC18XX_UART0
533 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
534 depends on ARCH_LPC18XX
535 select DEBUG_UART_8250
536 help
537 Say Y here if you want kernel low-level debugging support
538 on NXP LPC18xx/43xx UART0.
539
540 config DEBUG_LPC32XX
541 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
542 depends on ARCH_LPC32XX
543 select DEBUG_UART_8250
544 help
545 Say Y here if you want kernel low-level debugging support
546 on NXP LPC32xx based platforms.
547
548 config DEBUG_MESON_UARTAO
549 bool "Kernel low-level debugging via Meson6 UARTAO"
550 depends on ARCH_MESON
551 help
552 Say Y here if you want kernel low-lever debugging support
553 on Amlogic Meson6 based platforms on the UARTAO.
554
555 config DEBUG_MMP_UART2
556 bool "Kernel low-level debugging message via MMP UART2"
557 depends on ARCH_MMP
558 select DEBUG_UART_8250
559 help
560 Say Y here if you want kernel low-level debugging support
561 on MMP UART2.
562
563 config DEBUG_MMP_UART3
564 bool "Kernel low-level debugging message via MMP UART3"
565 depends on ARCH_MMP
566 select DEBUG_UART_8250
567 help
568 Say Y here if you want kernel low-level debugging support
569 on MMP UART3.
570
571 config DEBUG_MVEBU_UART0
572 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
573 depends on ARCH_MVEBU
574 depends on ARCH_MVEBU && CPU_V7
575 select DEBUG_UART_8250
576 help
577 Say Y here if you want kernel low-level debugging support
578 on MVEBU based platforms on UART0.
579
580 This option should be used with the old bootloaders
581 that left the internal registers mapped at
582 0xd0000000. As of today, this is the case on
583 platforms such as the Globalscale Mirabox or the
584 Plathome OpenBlocks AX3, when using the original
585 bootloader.
586
587 This option will not work on older Marvell platforms
588 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
589 the "new bootloader" variant.
590
591 If the wrong DEBUG_MVEBU_UART* option is selected,
592 when u-boot hands over to the kernel, the system
593 silently crashes, with no serial output at all.
594
595 config DEBUG_MVEBU_UART0_ALTERNATE
596 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
597 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
598 select DEBUG_UART_8250
599 help
600 Say Y here if you want kernel low-level debugging support
601 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
602 Kirkwood, Dove, MV78xx0, Orion5x).
603
604
605 This option should be used with the new bootloaders
606 that remap the internal registers at 0xf1000000.
607
608 If the wrong DEBUG_MVEBU_UART* option is selected,
609 when u-boot hands over to the kernel, the system
610 silently crashes, with no serial output at all.
611
612 config DEBUG_MVEBU_UART1_ALTERNATE
613 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
614 depends on ARCH_MVEBU
615 select DEBUG_UART_8250
616 help
617 Say Y here if you want kernel low-level debugging support
618 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
619 Kirkwood, Dove, MV78xx0, Orion5x).
620
621 This option should be used with the new bootloaders
622 that remap the internal registers at 0xf1000000.
623 All of the older (pre Armada XP/370) platforms also use
624 this address, regardless of the boot loader version.
625
626 If the wrong DEBUG_MVEBU_UART* option is selected,
627 when u-boot hands over to the kernel, the system
628 silently crashes, with no serial output at all.
629
630 config DEBUG_MSTARV7_PMUART
631 bool "Kernel low-level debugging messages via MSTARV7 PM UART"
632 depends on ARCH_MSTARV7
633 select DEBUG_UART_8250
634 help
635 Say Y here if you want kernel low-level debugging support
636 for MSTAR ARMv7-based platforms on PM UART.
637
638 config DEBUG_MT6589_UART0
639 bool "Mediatek mt6589 UART0"
640 depends on ARCH_MEDIATEK
641 select DEBUG_UART_8250
642 help
643 Say Y here if you want kernel low-level debugging support
644 for Mediatek mt6589 based platforms on UART0.
645
646 config DEBUG_MT8127_UART0
647 bool "Mediatek mt8127/mt6592 UART0"
648 depends on ARCH_MEDIATEK
649 select DEBUG_UART_8250
650 help
651 Say Y here if you want kernel low-level debugging support
652 for Mediatek mt8127 based platforms on UART0.
653
654 config DEBUG_MT8135_UART3
655 bool "Mediatek mt8135 UART3"
656 depends on ARCH_MEDIATEK
657 select DEBUG_UART_8250
658 help
659 Say Y here if you want kernel low-level debugging support
660 for Mediatek mt8135 based platforms on UART3.
661
662 config DEBUG_NOMADIK_UART
663 bool "Kernel low-level debugging messages via NOMADIK UART"
664 depends on ARCH_NOMADIK
665 select DEBUG_UART_PL01X
666 help
667 Say Y here if you want kernel low-level debugging support
668 on NOMADIK based platforms.
669
670 config DEBUG_NSPIRE_CLASSIC_UART
671 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
672 depends on ARCH_NSPIRE
673 select DEBUG_UART_8250
674 help
675 Say Y here if you want kernel low-level debugging support
676 on TI-NSPIRE classic models.
677
678 config DEBUG_NSPIRE_CX_UART
679 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
680 depends on ARCH_NSPIRE
681 select DEBUG_UART_PL01X
682 help
683 Say Y here if you want kernel low-level debugging support
684 on TI-NSPIRE CX models.
685
686 config DEBUG_OMAP1UART1
687 bool "Kernel low-level debugging via OMAP1 UART1"
688 depends on ARCH_OMAP1
689 select DEBUG_UART_8250
690 help
691 Say Y here if you want kernel low-level debugging support
692 on OMAP1 based platforms (except OMAP730) on the UART1.
693
694 config DEBUG_OMAP1UART2
695 bool "Kernel low-level debugging via OMAP1 UART2"
696 depends on ARCH_OMAP1
697 select DEBUG_UART_8250
698 help
699 Say Y here if you want kernel low-level debugging support
700 on OMAP1 based platforms (except OMAP730) on the UART2.
701
702 config DEBUG_OMAP1UART3
703 bool "Kernel low-level debugging via OMAP1 UART3"
704 depends on ARCH_OMAP1
705 select DEBUG_UART_8250
706 help
707 Say Y here if you want kernel low-level debugging support
708 on OMAP1 based platforms (except OMAP730) on the UART3.
709
710 config DEBUG_OMAP2UART1
711 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
712 depends on ARCH_OMAP2PLUS
713 select DEBUG_UART_8250
714 help
715 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
716 omap3 torpedo and 3530 lv som.
717
718 config DEBUG_OMAP2UART2
719 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
720 depends on ARCH_OMAP2PLUS
721 select DEBUG_UART_8250
722
723 config DEBUG_OMAP2UART3
724 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
725 depends on ARCH_OMAP2PLUS
726 select DEBUG_UART_8250
727
728 config DEBUG_OMAP3UART3
729 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
730 depends on ARCH_OMAP2PLUS
731 select DEBUG_UART_8250
732 help
733 This covers at least cm_t3x, beagle, crane, devkit8000,
734 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
735 and 3517evm.
736
737 config DEBUG_OMAP4UART3
738 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
739 depends on ARCH_OMAP2PLUS
740 select DEBUG_UART_8250
741
742 config DEBUG_OMAP3UART4
743 bool "Kernel low-level debugging messages via OMAP36XX UART4"
744 depends on ARCH_OMAP2PLUS
745 select DEBUG_UART_8250
746
747 config DEBUG_OMAP4UART4
748 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
749 depends on ARCH_OMAP2PLUS
750 select DEBUG_UART_8250
751
752 config DEBUG_TI81XXUART1
753 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
754 depends on ARCH_OMAP2PLUS
755 select DEBUG_UART_8250
756
757 config DEBUG_TI81XXUART2
758 bool "Kernel low-level debugging messages via TI81XX UART2"
759 depends on ARCH_OMAP2PLUS
760 select DEBUG_UART_8250
761
762 config DEBUG_TI81XXUART3
763 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
764 depends on ARCH_OMAP2PLUS
765 select DEBUG_UART_8250
766
767 config DEBUG_AM33XXUART1
768 bool "Kernel low-level debugging messages via AM33XX UART1"
769 depends on ARCH_OMAP2PLUS
770 select DEBUG_UART_8250
771
772 config DEBUG_ZOOM_UART
773 bool "Kernel low-level debugging messages via Zoom2/3 UART"
774 depends on ARCH_OMAP2PLUS
775 select DEBUG_OMAP2PLUS_UART
776
777 config DEBUG_PXA_UART1
778 depends on ARCH_PXA
779 bool "Use PXA UART1 for low-level debug"
780 select DEBUG_UART_8250
781 help
782 Say Y here if you want kernel low-level debugging support
783 on PXA UART1.
784
785 config DEBUG_QCOM_UARTDM
786 bool "Kernel low-level debugging messages via QCOM UARTDM"
787 depends on ARCH_QCOM
788 help
789 Say Y here if you want the debug print routines to direct
790 their output to the serial port on Qualcomm devices.
791
792 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
793 APQ8064 0x16640000 0xf0040000
794 APQ8084 0xf995e000 0xfa75e000
795 IPQ4019 0x078af000 0xf78af000
796 MSM8X60 0x19c40000 0xf0040000
797 MSM8960 0x16440000 0xf0040000
798 MSM8974 0xf991e000 0xfa71e000
799
800 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
801 options based on your needs.
802
803 config DEBUG_REALVIEW_STD_PORT
804 bool "RealView Default UART"
805 depends on ARCH_REALVIEW
806 select DEBUG_UART_PL01X
807 help
808 Say Y here if you want the debug print routines to direct
809 their output to the serial port on RealView EB, PB11MP, PBA8
810 and PBX platforms.
811
812 config DEBUG_REALVIEW_PB1176_PORT
813 bool "RealView PB1176 UART"
814 depends on MACH_REALVIEW_PB1176
815 select DEBUG_UART_PL01X
816 help
817 Say Y here if you want the debug print routines to direct
818 their output to the standard serial port on the RealView
819 PB1176 platform.
820
821 config DEBUG_RV1108_UART0
822 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
823 depends on ARCH_ROCKCHIP
824 select DEBUG_UART_8250
825 help
826 Say Y here if you want kernel low-level debugging support
827 on Rockchip RV1108 based platforms.
828
829 config DEBUG_RV1108_UART1
830 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
831 depends on ARCH_ROCKCHIP
832 select DEBUG_UART_8250
833 help
834 Say Y here if you want kernel low-level debugging support
835 on Rockchip RV1108 based platforms.
836
837 config DEBUG_RV1108_UART2
838 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
839 depends on ARCH_ROCKCHIP
840 select DEBUG_UART_8250
841 help
842 Say Y here if you want kernel low-level debugging support
843 on Rockchip RV1108 based platforms.
844
845 config DEBUG_RK29_UART0
846 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
847 depends on ARCH_ROCKCHIP
848 select DEBUG_UART_8250
849 help
850 Say Y here if you want kernel low-level debugging support
851 on Rockchip based platforms.
852
853 config DEBUG_RK29_UART1
854 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
855 depends on ARCH_ROCKCHIP
856 select DEBUG_UART_8250
857 help
858 Say Y here if you want kernel low-level debugging support
859 on Rockchip based platforms.
860
861 config DEBUG_RK29_UART2
862 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
863 depends on ARCH_ROCKCHIP
864 select DEBUG_UART_8250
865 help
866 Say Y here if you want kernel low-level debugging support
867 on Rockchip based platforms.
868
869 config DEBUG_RK3X_UART0
870 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
871 depends on ARCH_ROCKCHIP
872 select DEBUG_UART_8250
873 help
874 Say Y here if you want kernel low-level debugging support
875 on Rockchip based platforms.
876
877 config DEBUG_RK3X_UART1
878 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
879 depends on ARCH_ROCKCHIP
880 select DEBUG_UART_8250
881 help
882 Say Y here if you want kernel low-level debugging support
883 on Rockchip based platforms.
884
885 config DEBUG_RK3X_UART2
886 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
887 depends on ARCH_ROCKCHIP
888 select DEBUG_UART_8250
889 help
890 Say Y here if you want kernel low-level debugging support
891 on Rockchip based platforms.
892
893 config DEBUG_RK3X_UART3
894 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
895 depends on ARCH_ROCKCHIP
896 select DEBUG_UART_8250
897 help
898 Say Y here if you want kernel low-level debugging support
899 on Rockchip based platforms.
900
901 config DEBUG_RK32_UART2
902 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
903 depends on ARCH_ROCKCHIP
904 select DEBUG_UART_8250
905 help
906 Say Y here if you want kernel low-level debugging support
907 on Rockchip RK32xx based platforms.
908
909 config DEBUG_R7S72100_SCIF2
910 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
911 depends on ARCH_R7S72100
912 help
913 Say Y here if you want kernel low-level debugging support
914 via SCIF2 on Renesas RZ/A1H (R7S72100).
915
916 config DEBUG_R7S9210_SCIF2
917 bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
918 depends on ARCH_R7S9210
919 help
920 Say Y here if you want kernel low-level debugging support
921 via SCIF2 on Renesas RZ/A2M (R7S9210).
922
923 config DEBUG_R7S9210_SCIF4
924 bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
925 depends on ARCH_R7S9210
926 help
927 Say Y here if you want kernel low-level debugging support
928 via SCIF4 on Renesas RZ/A2M (R7S9210).
929
930 config DEBUG_RCAR_GEN1_SCIF0
931 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
932 depends on ARCH_R8A7778
933 help
934 Say Y here if you want kernel low-level debugging support
935 via SCIF0 on Renesas R-Car M1A (R8A7778).
936
937 config DEBUG_RCAR_GEN1_SCIF2
938 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
939 depends on ARCH_R8A7779
940 help
941 Say Y here if you want kernel low-level debugging support
942 via SCIF2 on Renesas R-Car H1 (R8A7779).
943
944 config DEBUG_RCAR_GEN2_SCIF0
945 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
946 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
947 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
948 help
949 Say Y here if you want kernel low-level debugging support
950 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
951 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
952 M2-N (R8A7793).
953
954 config DEBUG_RCAR_GEN2_SCIF1
955 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
956 depends on ARCH_R8A77470
957 help
958 Say Y here if you want kernel low-level debugging support
959 via SCIF1 on Renesas RZ/G1C (R8A77470).
960
961 config DEBUG_RCAR_GEN2_SCIF2
962 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
963 depends on ARCH_R8A7794
964 help
965 Say Y here if you want kernel low-level debugging support
966 via SCIF2 on Renesas R-Car E2 (R8A7794).
967
968 config DEBUG_RCAR_GEN2_SCIF4
969 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
970 depends on ARCH_R8A7745
971 help
972 Say Y here if you want kernel low-level debugging support
973 via SCIF4 on Renesas RZ/G1E (R8A7745).
974
975 config DEBUG_RCAR_GEN2_SCIFA2
976 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
977 depends on ARCH_R8A7742
978 help
979 Say Y here if you want kernel low-level debugging support
980 via SCIFA2 on Renesas RZ/G1H (R8A7742).
981
982 config DEBUG_RMOBILE_SCIFA0
983 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
984 depends on ARCH_R8A73A4
985 help
986 Say Y here if you want kernel low-level debugging support
987 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
988
989 config DEBUG_RMOBILE_SCIFA1
990 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
991 depends on ARCH_R8A7740
992 help
993 Say Y here if you want kernel low-level debugging support
994 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
995
996 config DEBUG_RMOBILE_SCIFA4
997 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
998 depends on ARCH_SH73A0
999 help
1000 Say Y here if you want kernel low-level debugging support
1001 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1002
1003 config DEBUG_S3C_UART0
1004 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1005 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1006 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1007 select DEBUG_S5PV210_UART if ARCH_S5PV210
1008 bool "Use Samsung S3C UART 0 for low-level debug"
1009 help
1010 Say Y here if you want the debug print routines to direct
1011 their output to UART 0. The port must have been initialised
1012 by the boot-loader before use.
1013
1014 config DEBUG_S3C_UART1
1015 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1016 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1017 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1018 select DEBUG_S5PV210_UART if ARCH_S5PV210
1019 bool "Use Samsung S3C UART 1 for low-level debug"
1020 help
1021 Say Y here if you want the debug print routines to direct
1022 their output to UART 1. The port must have been initialised
1023 by the boot-loader before use.
1024
1025 config DEBUG_S3C_UART2
1026 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1027 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1028 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1029 select DEBUG_S5PV210_UART if ARCH_S5PV210
1030 bool "Use Samsung S3C UART 2 for low-level debug"
1031 help
1032 Say Y here if you want the debug print routines to direct
1033 their output to UART 2. The port must have been initialised
1034 by the boot-loader before use.
1035
1036 config DEBUG_S3C_UART3
1037 depends on ARCH_EXYNOS || ARCH_S5PV210
1038 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1039 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1040 select DEBUG_S5PV210_UART if ARCH_S5PV210
1041 bool "Use Samsung S3C UART 3 for low-level debug"
1042 help
1043 Say Y here if you want the debug print routines to direct
1044 their output to UART 3. The port must have been initialised
1045 by the boot-loader before use.
1046
1047 config DEBUG_SA1100
1048 depends on ARCH_SA1100
1049 bool "Use SA1100 UARTs for low-level debug"
1050 help
1051 Say Y here if you want kernel low-level debugging support
1052 on SA-11x0 UART ports. The kernel will check for the first
1053 enabled UART in a sequence 3-1-2.
1054
1055 config DEBUG_SD5203_UART
1056 bool "Hisilicon SD5203 Debug UART"
1057 depends on ARCH_SD5203
1058 select DEBUG_UART_8250
1059 help
1060 Say Y here if you want kernel low-level debugging support
1061 on SD5203 UART.
1062
1063 config DEBUG_SOCFPGA_UART0
1064 depends on ARCH_INTEL_SOCFPGA
1065 bool "Use SOCFPGA UART0 for low-level debug"
1066 select DEBUG_UART_8250
1067 help
1068 Say Y here if you want kernel low-level debugging support
1069 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1070
1071 config DEBUG_SOCFPGA_ARRIA10_UART1
1072 depends on ARCH_INTEL_SOCFPGA
1073 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1074 select DEBUG_UART_8250
1075 help
1076 Say Y here if you want kernel low-level debugging support
1077 on SOCFPGA(Arria 10) based platforms.
1078
1079 config DEBUG_SOCFPGA_CYCLONE5_UART1
1080 depends on ARCH_INTEL_SOCFPGA
1081 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1082 select DEBUG_UART_8250
1083 help
1084 Say Y here if you want kernel low-level debugging support
1085 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1086
1087 config DEBUG_SUN9I_UART0
1088 bool "Kernel low-level debugging messages via sun9i UART0"
1089 depends on MACH_SUN9I
1090 select DEBUG_UART_8250
1091 help
1092 Say Y here if you want kernel low-level debugging support
1093 on Allwinner A80 based platforms on the UART0.
1094
1095 config DEBUG_SUNXI_UART0
1096 bool "Kernel low-level debugging messages via sunXi UART0"
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 UART0.
1102
1103 config DEBUG_SUNXI_UART1
1104 bool "Kernel low-level debugging messages via sunXi UART1"
1105 depends on ARCH_SUNXI
1106 select DEBUG_UART_8250
1107 help
1108 Say Y here if you want kernel low-level debugging support
1109 on Allwinner A1X based platforms on the UART1.
1110
1111 config DEBUG_SUNXI_R_UART
1112 bool "Kernel low-level debugging messages via sunXi R_UART"
1113 depends on MACH_SUN6I || MACH_SUN8I
1114 select DEBUG_UART_8250
1115 help
1116 Say Y here if you want kernel low-level debugging support
1117 on Allwinner A31/A23 based platforms on the R_UART.
1118
1119 config DEBUG_SPEAR3XX
1120 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1121 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1122 select DEBUG_UART_PL01X
1123 help
1124 Say Y here if you want kernel low-level debugging support
1125 on ST SPEAr based platforms.
1126
1127 config DEBUG_SPEAR13XX
1128 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1129 depends on ARCH_SPEAR13XX
1130 select DEBUG_UART_PL01X
1131 help
1132 Say Y here if you want kernel low-level debugging support
1133 on ST SPEAr13xx based platforms.
1134
1135 config DEBUG_STIH41X_ASC2
1136 bool "Use StiH415/416 ASC2 UART for low-level debug"
1137 depends on ARCH_STI
1138 help
1139 Say Y here if you want kernel low-level debugging support
1140 on STiH415/416 based platforms like b2000, which has
1141 default UART wired up to ASC2.
1142
1143 If unsure, say N.
1144
1145 config DEBUG_STIH41X_SBC_ASC1
1146 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1147 depends on ARCH_STI
1148 help
1149 Say Y here if you want kernel low-level debugging support
1150 on STiH415/416 based platforms like b2020. which has
1151 default UART wired up to SBC ASC1.
1152
1153 If unsure, say N.
1154
1155 config DEBUG_STIH418_SBC_ASC0
1156 bool "Use StiH418 SBC ASC0 UART for low-level debug"
1157 depends on ARCH_STI
1158 help
1159 Say Y here if you want kernel low-level debugging support
1160 on STiH418 based platforms which has default UART wired
1161 up to SBC ASC0.
1162
1163 If unsure, say N.
1164
1165 config STM32F4_DEBUG_UART
1166 bool "Use STM32F4 UART for low-level debug"
1167 depends on MACH_STM32F429 || MACH_STM32F469
1168 select DEBUG_STM32_UART
1169 help
1170 Say Y here if you want kernel low-level debugging support
1171 on STM32F4 based platforms, which default UART is wired on
1172 USART1, but another UART instance can be selected by modifying
1173 CONFIG_DEBUG_UART_PHYS.
1174
1175 If unsure, say N.
1176
1177 config STM32F7_DEBUG_UART
1178 bool "Use STM32F7 UART for low-level debug"
1179 depends on MACH_STM32F746 || MACH_STM32F769
1180 select DEBUG_STM32_UART
1181 help
1182 Say Y here if you want kernel low-level debugging support
1183 on STM32F7 based platforms, which default UART is wired on
1184 USART1, but another UART instance can be selected by modifying
1185 CONFIG_DEBUG_UART_PHYS.
1186
1187 If unsure, say N.
1188
1189 config STM32H7_DEBUG_UART
1190 bool "Use STM32H7 UART for low-level debug"
1191 depends on MACH_STM32H743
1192 select DEBUG_STM32_UART
1193 help
1194 Say Y here if you want kernel low-level debugging support
1195 on STM32H7 based platforms, which default UART is wired on
1196 USART1, but another UART instance can be selected by modifying
1197 CONFIG_DEBUG_UART_PHYS.
1198
1199 If unsure, say N.
1200
1201 config STM32MP1_DEBUG_UART
1202 bool "Use STM32MP1 UART for low-level debug"
1203 depends on MACH_STM32MP157
1204 select DEBUG_STM32_UART
1205 help
1206 Say Y here if you want kernel low-level debugging support on
1207 STM32MP1-based platforms, where the default UART is wired to
1208 UART4, but another UART instance can be selected by modifying
1209 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1210
1211 If unsure, say N.
1212
1213 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1214 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1215 depends on ARCH_TEGRA
1216 select DEBUG_TEGRA_UART
1217 help
1218 Automatically determines which UART to use for low-level
1219 debug based on the ODMDATA value. This value is part of
1220 the BCT, and is written to the boot memory device using
1221 nvflash, or other flashing tool. When bits 19:18 are 3,
1222 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1223 are UART A/B/C/D/E.
1224
1225 config TEGRA_DEBUG_UARTA
1226 bool "Kernel low-level debugging messages via Tegra UART A"
1227 depends on ARCH_TEGRA
1228 select DEBUG_TEGRA_UART
1229 help
1230 Say Y here if you want kernel low-level debugging support
1231 on Tegra based platforms.
1232
1233 config TEGRA_DEBUG_UARTB
1234 bool "Kernel low-level debugging messages via Tegra UART B"
1235 depends on ARCH_TEGRA
1236 select DEBUG_TEGRA_UART
1237 help
1238 Say Y here if you want kernel low-level debugging support
1239 on Tegra based platforms.
1240
1241 config TEGRA_DEBUG_UARTC
1242 bool "Kernel low-level debugging messages via Tegra UART C"
1243 depends on ARCH_TEGRA
1244 select DEBUG_TEGRA_UART
1245 help
1246 Say Y here if you want kernel low-level debugging support
1247 on Tegra based platforms.
1248
1249 config TEGRA_DEBUG_UARTD
1250 bool "Kernel low-level debugging messages via Tegra UART D"
1251 depends on ARCH_TEGRA
1252 select DEBUG_TEGRA_UART
1253 help
1254 Say Y here if you want kernel low-level debugging support
1255 on Tegra based platforms.
1256
1257 config TEGRA_DEBUG_UARTE
1258 bool "Kernel low-level debugging messages via Tegra UART E"
1259 depends on ARCH_TEGRA
1260 select DEBUG_TEGRA_UART
1261 help
1262 Say Y here if you want kernel low-level debugging support
1263 on Tegra based platforms.
1264
1265 config DEBUG_UX500_UART
1266 depends on ARCH_U8500
1267 bool "Use Ux500 UART for low-level debug"
1268 help
1269 Say Y here if you want kernel low-level debugging support
1270 on Ux500 based platforms.
1271
1272 config DEBUG_VERSATILE
1273 bool "Kernel low-level debugging messages via ARM Versatile UART"
1274 depends on ARCH_VERSATILE
1275 select DEBUG_UART_PL01X
1276 help
1277 Say Y here if you want kernel low-level debugging support
1278 on ARM Versatile platforms.
1279
1280 config DEBUG_VEXPRESS_UART0_DETECT
1281 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1282 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1283 help
1284 This option enables a simple heuristic which tries to determine
1285 the motherboard's memory map variant (original or RS1) and then
1286 choose the relevant UART0 base address.
1287
1288 Note that this will only work with standard A-class core tiles,
1289 and may fail with non-standard SMM or custom software models.
1290
1291 config DEBUG_VEXPRESS_UART0_CA9
1292 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1293 depends on ARCH_VEXPRESS
1294 select DEBUG_UART_PL01X
1295 help
1296 This option selects UART0 at 0x10009000. Except for custom models,
1297 this applies only to the V2P-CA9 tile.
1298
1299 config DEBUG_VEXPRESS_UART0_RS1
1300 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1301 depends on ARCH_VEXPRESS
1302 select DEBUG_UART_PL01X
1303 help
1304 This option selects UART0 at 0x1c090000. This applies to most
1305 of the tiles using the RS1 memory map, including all new A-class
1306 core tiles, FPGA-based SMMs and software models.
1307
1308 config DEBUG_VEXPRESS_UART0_CRX
1309 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1310 depends on ARCH_VEXPRESS && !MMU
1311 select DEBUG_UART_PL01X
1312 help
1313 This option selects UART0 at 0xb0090000. This is appropriate for
1314 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1315
1316 config DEBUG_VF_UART
1317 bool "Vybrid UART"
1318 depends on SOC_VF610
1319 help
1320 Say Y here if you want kernel low-level debugging support
1321 on Vybrid based platforms.
1322
1323 config DEBUG_VT8500_UART0
1324 bool "Use UART0 on VIA/Wondermedia SoCs"
1325 depends on ARCH_VT8500
1326 help
1327 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1328 devices, including VT8500, WM8505, WM8650 and WM8850.
1329
1330 config DEBUG_ZYNQ_UART0
1331 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1332 depends on ARCH_ZYNQ
1333 help
1334 Say Y here if you want the debug print routines to direct
1335 their output to UART0 on the Zynq platform.
1336
1337 config DEBUG_ZYNQ_UART1
1338 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1339 depends on ARCH_ZYNQ
1340 help
1341 Say Y here if you want the debug print routines to direct
1342 their output to UART1 on the Zynq platform.
1343
1344 If you have a ZC702 board and want early boot messages to
1345 appear on the USB serial adaptor, select this option.
1346
1347 config DEBUG_ICEDCC
1348 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1349 help
1350 Say Y here if you want the debug print routines to direct
1351 their output to the EmbeddedICE macrocell's DCC channel using
1352 co-processor 14. This is known to work on the ARM9 style ICE
1353 channel and on the XScale with the PEEDI.
1354
1355 Note that the system will appear to hang during boot if there
1356 is nothing connected to read from the DCC.
1357
1358 config DEBUG_SEMIHOSTING
1359 bool "Kernel low-level debug output via semihosting I/O"
1360 help
1361 Semihosting enables code running on an ARM target to use
1362 the I/O facilities on a host debugger/emulator through a
1363 simple SVC call. The host debugger or emulator must have
1364 semihosting enabled for the special svc call to be trapped
1365 otherwise the kernel will crash.
1366
1367 This is known to work with OpenOCD, as well as
1368 ARM's Fast Models, or any other controlling environment
1369 that implements semihosting.
1370
1371 For more details about semihosting, please see
1372 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1373
1374 config DEBUG_LL_UART_8250
1375 bool "Kernel low-level debugging via 8250 UART"
1376 help
1377 Say Y here if you wish the debug print routes to direct
1378 their output to an 8250 UART. You can use this option
1379 to provide the parameters for the 8250 UART rather than
1380 selecting one of the platform specific options above if
1381 you know the parameters for the port.
1382
1383 This option is preferred over the platform specific
1384 options; the platform specific options are deprecated
1385 and will be soon removed.
1386
1387 config DEBUG_LL_UART_PL01X
1388 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1389 help
1390 Say Y here if you wish the debug print routes to direct
1391 their output to a PL01x Primecell UART. You can use
1392 this option to provide the parameters for the UART
1393 rather than selecting one of the platform specific
1394 options above if you know the parameters for the port.
1395
1396 This option is preferred over the platform specific
1397 options; the platform specific options are deprecated
1398 and will be soon removed.
1399
1400 endchoice
1401
1402 config DEBUG_AT91_UART
1403 bool
1404 depends on ARCH_AT91
1405
1406 config DEBUG_EXYNOS_UART
1407 bool
1408
1409 config DEBUG_S3C64XX_UART
1410 bool
1411
1412 config DEBUG_S5PV210_UART
1413 bool
1414
1415 config DEBUG_S3C_UART
1416 depends on DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \
1417 DEBUG_EXYNOS_UART
1418 int
1419 default "0" if DEBUG_S3C_UART0
1420 default "1" if DEBUG_S3C_UART1
1421 default "2" if DEBUG_S3C_UART2
1422 default "3" if DEBUG_S3C_UART3
1423
1424 config DEBUG_OMAP2PLUS_UART
1425 bool
1426 depends on ARCH_OMAP2PLUS
1427
1428 config DEBUG_IMX_UART_PORT
1429 int "i.MX Debug UART Port Selection"
1430 depends on DEBUG_IMX1_UART || \
1431 DEBUG_IMX25_UART || \
1432 DEBUG_IMX27_UART || \
1433 DEBUG_IMX31_UART || \
1434 DEBUG_IMX35_UART || \
1435 DEBUG_IMX50_UART || \
1436 DEBUG_IMX51_UART || \
1437 DEBUG_IMX53_UART || \
1438 DEBUG_IMX6Q_UART || \
1439 DEBUG_IMX6SL_UART || \
1440 DEBUG_IMX6SX_UART || \
1441 DEBUG_IMX6UL_UART || \
1442 DEBUG_IMX7D_UART
1443 default 1
1444 help
1445 Choose UART port on which kernel low-level debug messages
1446 should be output.
1447
1448 config DEBUG_VF_UART_PORT
1449 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1450 default 1
1451 range 0 3
1452 depends on SOC_VF610
1453 help
1454 Choose UART port on which kernel low-level debug messages
1455 should be output.
1456
1457 config DEBUG_TEGRA_UART
1458 bool
1459 depends on ARCH_TEGRA
1460
1461 config DEBUG_STM32_UART
1462 bool
1463 depends on ARCH_STM32
1464
1465 config DEBUG_UART_FLOW_CONTROL
1466 bool "Enable flow control (CTS) for the debug UART"
1467 depends on DEBUG_LL
1468 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1469 help
1470 Some UART ports are connected to terminals that will use modem
1471 control signals to indicate whether they are ready to receive text.
1472 In practice this means that the terminal is asserting the special
1473 control signal CTS (Clear To Send). If your debug UART supports
1474 this and your debug terminal will require it, enable this option.
1475
1476 config DEBUG_LL_INCLUDE
1477 string
1478 default "debug/sa1100.S" if DEBUG_SA1100
1479 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1480 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1481 default "debug/at91.S" if DEBUG_AT91_UART
1482 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1483 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1484 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1485 default "debug/meson.S" if DEBUG_MESON_UARTAO
1486 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1487 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1488 default "debug/icedcc.S" if DEBUG_ICEDCC
1489 default "debug/imx.S" if DEBUG_IMX1_UART || \
1490 DEBUG_IMX25_UART || \
1491 DEBUG_IMX27_UART || \
1492 DEBUG_IMX31_UART || \
1493 DEBUG_IMX35_UART || \
1494 DEBUG_IMX50_UART || \
1495 DEBUG_IMX51_UART || \
1496 DEBUG_IMX53_UART || \
1497 DEBUG_IMX6Q_UART || \
1498 DEBUG_IMX6SL_UART || \
1499 DEBUG_IMX6SX_UART || \
1500 DEBUG_IMX6UL_UART || \
1501 DEBUG_IMX7D_UART
1502 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1503 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1504 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1505 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1506 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1507 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1508 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1509 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1510 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1511 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1512 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1513 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1514 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1515 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1516 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1517 default "debug/s3c24xx.S" if DEBUG_S3C64XX_UART
1518 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1519 default "debug/sti.S" if DEBUG_STIH41X_ASC2
1520 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1521 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1522 default "debug/stm32.S" if DEBUG_STM32_UART
1523 default "debug/tegra.S" if DEBUG_TEGRA_UART
1524 default "debug/ux500.S" if DEBUG_UX500_UART
1525 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1526 default "debug/vf.S" if DEBUG_VF_UART
1527 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1528 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1529 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1530 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1531 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1532 default "mach/debug-macro.S"
1533
1534 # Compatibility options for PL01x
1535 config DEBUG_UART_PL01X
1536 bool
1537
1538 # Compatibility options for 8250
1539 config DEBUG_UART_8250
1540 def_bool ARCH_IXP4XX || ARCH_RPC
1541
1542 config DEBUG_UART_PHYS
1543 hex "Physical base address of debug UART"
1544 default 0x01c28000 if DEBUG_SUNXI_UART0
1545 default 0x01c28400 if DEBUG_SUNXI_UART1
1546 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1547 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1548 default 0x01f02800 if DEBUG_SUNXI_R_UART
1549 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1550 default 0x02531000 if DEBUG_KEYSTONE_UART1
1551 default 0x03010fe0 if ARCH_RPC
1552 default 0x07000000 if DEBUG_SUN9I_UART0
1553 default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1554 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1555 DEBUG_VEXPRESS_UART0_CA9
1556 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1557 default 0x10124000 if DEBUG_RK3X_UART0
1558 default 0x10126000 if DEBUG_RK3X_UART1
1559 default 0x101f1000 if DEBUG_VERSATILE
1560 default 0x101fb000 if DEBUG_NOMADIK_UART
1561 default 0x10210000 if DEBUG_RV1108_UART2
1562 default 0x10220000 if DEBUG_RV1108_UART1
1563 default 0x10230000 if DEBUG_RV1108_UART0
1564 default 0x11002000 if DEBUG_MT8127_UART0
1565 default 0x11006000 if DEBUG_MT6589_UART0
1566 default 0x11009000 if DEBUG_MT8135_UART3
1567 default 0x16000000 if DEBUG_INTEGRATOR
1568 default 0x1600d000 if DEBUG_SD5203_UART
1569 default 0x18000300 if DEBUG_BCM_5301X
1570 default 0x18000400 if DEBUG_BCM_HR2
1571 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1572 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1573 default 0x1f221000 if DEBUG_MSTARV7_PMUART
1574 default 0x20001000 if DEBUG_HIP01_UART
1575 default 0x20060000 if DEBUG_RK29_UART0
1576 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1577 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1578 default 0x20201000 if DEBUG_BCM2835
1579 default 0x3e000000 if DEBUG_BCM_KONA_UART
1580 default 0x3f201000 if DEBUG_BCM2836
1581 default 0x40010000 if STM32MP1_DEBUG_UART
1582 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1583 STM32H7_DEBUG_UART
1584 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1585 default 0x40081000 if DEBUG_LPC18XX_UART0
1586 default 0x40090000 if DEBUG_LPC32XX
1587 default 0x40100000 if DEBUG_PXA_UART1
1588 default 0x42000000 if DEBUG_GEMINI
1589 default 0x44e09000 if DEBUG_AM33XXUART1
1590 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1591 default 0x48022000 if DEBUG_TI81XXUART2
1592 default 0x48024000 if DEBUG_TI81XXUART3
1593 default 0x4806a000 if DEBUG_OMAP2UART1
1594 default 0x4806c000 if DEBUG_OMAP2UART2
1595 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1596 default 0x49020000 if DEBUG_OMAP3UART3
1597 default 0x49042000 if DEBUG_OMAP3UART4
1598 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1599 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1600 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1601 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1602 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1603 default 0x80010000 if DEBUG_ASM9260_UART
1604 default 0x80070000 if DEBUG_IMX23_UART
1605 default 0x80074000 if DEBUG_IMX28_UART
1606 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1607 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1608 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1609 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1610 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1611 default 0xd0000000 if DEBUG_SPEAR3XX
1612 default 0xd0012000 if DEBUG_MVEBU_UART0
1613 default 0xc81004c0 if DEBUG_MESON_UARTAO
1614 default 0xd4017000 if DEBUG_MMP_UART2
1615 default 0xd4018000 if DEBUG_MMP_UART3
1616 default 0xe0000000 if DEBUG_SPEAR13XX
1617 default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM
1618 default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1619 default 0xe4007000 if DEBUG_HIP04_UART
1620 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1621 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1622 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1623 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1624 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1625 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1626 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1627 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1628 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1629 default 0xe8009000 if DEBUG_R7S9210_SCIF4
1630 default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1631 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1632 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1633 default 0xf7fc9000 if DEBUG_BERLIN_UART
1634 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1635 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1636 default 0xf991e000 if DEBUG_QCOM_UARTDM
1637 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1638 default 0xfcb00000 if DEBUG_HI3620_UART
1639 default 0xfd883000 if DEBUG_ALPINE_UART0
1640 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1641 default 0xfed32000 if DEBUG_STIH41X_ASC2
1642 default 0xff690000 if DEBUG_RK32_UART2
1643 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1644 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1645 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1646 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1647 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1648 default 0xfff36000 if DEBUG_HIGHBANK_UART
1649 default 0xfffb0000 if DEBUG_OMAP1UART1
1650 default 0xfffb0800 if DEBUG_OMAP1UART2
1651 default 0xfffb9800 if DEBUG_OMAP1UART3
1652 default 0xfffe8600 if DEBUG_BCM63XX_UART
1653 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1654 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1655 depends on ARCH_EP93XX || \
1656 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1657 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1658 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1659 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1660 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1661 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1662 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1663 DEBUG_RCAR_GEN2_SCIFA2 || \
1664 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1665 DEBUG_RMOBILE_SCIFA4 || \
1666 DEBUG_S3C64XX_UART || \
1667 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1668 DEBUG_DIGICOLOR_UA0 || \
1669 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1670 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1671 DEBUG_STIH418_SBC_ASC0
1672
1673 config DEBUG_UART_VIRT
1674 hex "Virtual base address of debug UART"
1675 default 0xc881f000 if DEBUG_RV1108_UART2
1676 default 0xc8821000 if DEBUG_RV1108_UART1
1677 default 0xc8912000 if DEBUG_RV1108_UART0
1678 default 0xe0010fe0 if ARCH_RPC
1679 default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1680 default 0xf0010000 if DEBUG_ASM9260_UART
1681 default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1682 default 0xf01fb000 if DEBUG_NOMADIK_UART
1683 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1684 default 0xf0221000 if DEBUG_MSTARV7_PMUART
1685 default 0xf1000300 if DEBUG_BCM_5301X
1686 default 0xf1000400 if DEBUG_BCM_HR2
1687 default 0xf1002000 if DEBUG_MT8127_UART0
1688 default 0xf1006000 if DEBUG_MT6589_UART0
1689 default 0xf1009000 if DEBUG_MT8135_UART3
1690 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1691 default 0xf11f1000 if DEBUG_VERSATILE
1692 default 0xf1600000 if DEBUG_INTEGRATOR
1693 default 0xf1c28000 if DEBUG_SUNXI_UART0
1694 default 0xf1c28400 if DEBUG_SUNXI_UART1
1695 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1696 default 0xf31004c0 if DEBUG_MESON_UARTAO
1697 default 0xf4090000 if DEBUG_LPC32XX
1698 default 0xf4200000 if DEBUG_GEMINI
1699 default 0xf6200000 if DEBUG_PXA_UART1
1700 default 0xf7000000 if DEBUG_SUN9I_UART0
1701 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1702 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1703 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1704 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1705 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1706 default 0xf7fc9000 if DEBUG_BERLIN_UART
1707 default 0xf8007000 if DEBUG_HIP04_UART
1708 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1709 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1710 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1711 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1712 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1713 default 0xf9e09000 if DEBUG_AM33XXUART1
1714 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1715 default 0xfa022000 if DEBUG_TI81XXUART2
1716 default 0xfa024000 if DEBUG_TI81XXUART3
1717 default 0xfa06a000 if DEBUG_OMAP2UART1
1718 default 0xfa06c000 if DEBUG_OMAP2UART2
1719 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1720 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1721 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1722 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1723 default 0xfb020000 if DEBUG_OMAP3UART3
1724 default 0xfb042000 if DEBUG_OMAP3UART4
1725 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1726 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1727 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1728 default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM
1729 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1730 default 0xfd883000 if DEBUG_ALPINE_UART0
1731 default 0xfdd32000 if DEBUG_STIH41X_ASC2
1732 default 0xfe010000 if STM32MP1_DEBUG_UART
1733 default 0xfe017000 if DEBUG_MMP_UART2
1734 default 0xfe018000 if DEBUG_MMP_UART3
1735 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1736 default 0xfe300000 if DEBUG_BCM_KONA_UART
1737 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1738 default 0xfeb24000 if DEBUG_RK3X_UART0
1739 default 0xfeb26000 if DEBUG_RK3X_UART1
1740 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1741 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1742 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1743 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1744 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1745 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1746 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1747 default 0xfec90000 if DEBUG_RK32_UART2
1748 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1749 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1750 default 0xfed60000 if DEBUG_RK29_UART0
1751 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1752 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1753 default 0xfedc0000 if DEBUG_EP93XX
1754 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1755 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1756 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1757 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1758 default 0xfef36000 if DEBUG_HIGHBANK_UART
1759 default 0xff0b0000 if DEBUG_OMAP1UART1
1760 default 0xff0b0800 if DEBUG_OMAP1UART2
1761 default 0xff0b9800 if DEBUG_OMAP1UART3
1762 default 0xffd01000 if DEBUG_HIP01_UART
1763 default DEBUG_UART_PHYS if !MMU
1764 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1765 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1766 DEBUG_QCOM_UARTDM || \
1767 DEBUG_S3C64XX_UART || \
1768 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1769 DEBUG_DIGICOLOR_UA0 || \
1770 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1771 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1772 DEBUG_STIH418_SBC_ASC0
1773
1774 config DEBUG_UART_8250_SHIFT
1775 int "Register offset shift for the 8250 debug UART"
1776 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1777 default 0 if DEBUG_FOOTBRIDGE_COM1 || DEBUG_BCM_5301X || \
1778 DEBUG_BCM_HR2
1779 default 3 if DEBUG_MSTARV7_PMUART
1780 default 2
1781
1782 config DEBUG_UART_8250_WORD
1783 bool "Use 32-bit accesses for 8250 UART"
1784 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1785 depends on DEBUG_UART_8250_SHIFT >= 2
1786 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1787 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1788 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1789 DEBUG_DAVINCI_DA8XX_UART1 || DEBUG_DAVINCI_DA8XX_UART2 || \
1790 DEBUG_BCM_IPROC_UART3 || DEBUG_BCM_KONA_UART || \
1791 DEBUG_RK32_UART2
1792
1793 config DEBUG_UART_8250_PALMCHIP
1794 bool "8250 UART is Palmchip BK-310x"
1795 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1796 help
1797 Palmchip provides a UART implementation compatible with 16550
1798 except for having a different register layout. Say Y here if
1799 the debug UART is of this type.
1800
1801 config DEBUG_UNCOMPRESS
1802 bool "Enable decompressor debugging via DEBUG_LL output"
1803 depends on !ARCH_MULTIPLATFORM
1804 depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
1805 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1806 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1807 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1808 help
1809 Say Y here to enable debug output in the decompressor code, using
1810 the selected DEBUG_LL output method.
1811
1812 config UNCOMPRESS_INCLUDE
1813 string
1814 default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
1815 default "debug/uncompress.h"
1816
1817 config EARLY_PRINTK
1818 bool "Early printk"
1819 depends on DEBUG_LL
1820 help
1821 Say Y here if you want to have an early console using the
1822 kernel low-level debugging functions. Add earlyprintk to your
1823 kernel parameters to enable this console.
1824
1825 config ARM_KPROBES_TEST
1826 tristate "Kprobes test module"
1827 depends on KPROBES && MODULES
1828 help
1829 Perform tests of kprobes API and instruction set simulation.
1830
1831 config PID_IN_CONTEXTIDR
1832 bool "Write the current PID to the CONTEXTIDR register"
1833 depends on CPU_COPY_V6
1834 help
1835 Enabling this option causes the kernel to write the current PID to
1836 the PROCID field of the CONTEXTIDR register, at the expense of some
1837 additional instructions during context switch. Say Y here only if you
1838 are planning to use hardware trace tools with this kernel.
1839
1840 source "drivers/hwtracing/coresight/Kconfig"
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