| blob | f46e18a7764554d9b7e9f678ed27e1bc7742eb4e |
1 # SPDX-License-Identifier: GPL-2.0
3 config ARM_PTDUMP_CORE
4 def_bool n
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"
20 config 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.
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.
30 Look for a message in dmesg output like this:
32 arm/mm: Checked W+X mappings: passed, no W+X pages found.
34 or like this, if the check failed:
36 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
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.
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.
46 If in doubt, say "Y".
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.
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.
66 config UNWINDER_ARM
67 bool "ARM EABI stack unwinder"
68 depends on AEABI && !FUNCTION_GRAPH_TRACER
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.
77 endchoice
79 config ARM_UNWIND
80 bool
82 config FRAME_POINTER
83 bool
85 config DEBUG_USER
86 bool "Verbose user fault messages"
87 help
88 When a user program crashes due to an exception, the kernel can
89 print a brief message explaining what the problem was. This is
90 sometimes helpful for debugging but serves no purpose on a
91 production system. Most people should say N here.
93 In addition, you need to pass user_debug=N on the kernel command
94 line to enable this feature. N consists of the sum of:
96 1 - undefined instruction events
97 2 - system calls
98 4 - invalid data aborts
99 8 - SIGSEGV faults
100 16 - SIGBUS faults
102 # These options are only for real kernel hackers who want to get their hands dirty.
103 config DEBUG_LL
104 bool "Kernel low-level debugging functions (read help!)"
105 depends on DEBUG_KERNEL
106 help
107 Say Y here to include definitions of printascii, printch, printhex
108 in the kernel. This is helpful if you are debugging code that
109 executes before the console is initialized.
111 Note that selecting this option will limit the kernel to a single
112 UART definition, as specified below. Attempting to boot the kernel
113 image on a different platform *will not work*, so this option should
114 not be enabled for kernels that are intended to be portable.
116 choice
117 prompt "Kernel low-level debugging port"
118 depends on DEBUG_LL
120 config DEBUG_ALPINE_UART0
121 bool "Kernel low-level debugging messages via Alpine UART0"
122 depends on ARCH_ALPINE
123 select DEBUG_UART_8250
124 help
125 Say Y here if you want kernel low-level debugging support
126 on Alpine based platforms.
128 config DEBUG_ASM9260_UART
129 bool "Kernel low-level debugging via asm9260 UART"
130 depends on MACH_ASM9260
131 help
132 Say Y here if you want the debug print routines to direct
133 their output to an UART or USART port on asm9260 based
134 machines.
136 DEBUG_UART_PHYS | DEBUG_UART_VIRT
138 0x80000000 | 0xf0000000 | UART0
139 0x80004000 | 0xf0004000 | UART1
140 0x80008000 | 0xf0008000 | UART2
141 0x8000c000 | 0xf000c000 | UART3
142 0x80010000 | 0xf0010000 | UART4
143 0x80014000 | 0xf0014000 | UART5
144 0x80018000 | 0xf0018000 | UART6
145 0x8001c000 | 0xf001c000 | UART7
146 0x80020000 | 0xf0020000 | UART8
147 0x80024000 | 0xf0024000 | UART9
149 config DEBUG_AT91_RM9200_DBGU
150 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
151 select DEBUG_AT91_UART
152 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
153 help
154 Say Y here if you want kernel low-level debugging support
155 on the DBGU port of:
156 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
157 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
159 config DEBUG_AT91_SAM9263_DBGU
160 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
161 select DEBUG_AT91_UART
162 depends on SOC_AT91SAM9 || SOC_SAMA5D3
163 help
164 Say Y here if you want kernel low-level debugging support
165 on the DBGU port of:
166 at91sam9263, at91sam9g45, at91sam9m10,
167 sama5d3
169 config DEBUG_AT91_SAMA5D2_UART1
170 bool "Kernel low-level debugging on SAMA5D2 UART1"
171 select DEBUG_AT91_UART
172 depends on SOC_SAMA5D2
173 help
174 Say Y here if you want kernel low-level debugging support
175 on the UART1 port of sama5d2.
177 config DEBUG_AT91_SAMA5D4_USART3
178 bool "Kernel low-level debugging on SAMA5D4 USART3"
179 select DEBUG_AT91_UART
180 depends on SOC_SAMA5D4
181 help
182 Say Y here if you want kernel low-level debugging support
183 on the USART3 port of sama5d4.
185 config DEBUG_AT91_SAMV7_USART1
186 bool "Kernel low-level debugging via SAMV7 USART1"
187 select DEBUG_AT91_UART
188 depends on SOC_SAMV7
189 help
190 Say Y here if you want the debug print routines to direct
191 their output to the USART1 port on SAMV7 based
192 machines.
194 config DEBUG_BCM2835
195 bool "Kernel low-level debugging on BCM2835 PL011 UART"
196 depends on ARCH_BCM2835 && ARCH_MULTI_V6
197 select DEBUG_UART_PL01X
199 config DEBUG_BCM2836
200 bool "Kernel low-level debugging on BCM2836 PL011 UART"
201 depends on ARCH_BCM2835 && ARCH_MULTI_V7
202 select DEBUG_UART_PL01X
204 config DEBUG_BCM_5301X
205 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
206 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
207 select DEBUG_UART_8250
209 config DEBUG_BCM_HR2
210 bool "Kernel low-level debugging on Hurricane 2 UART2"
211 depends on ARCH_BCM_HR2
212 select DEBUG_UART_8250
214 config DEBUG_BCM_IPROC_UART3
215 bool "Kernel low-level debugging on BCM IPROC UART3"
216 depends on ARCH_BCM_CYGNUS
217 select DEBUG_UART_8250
218 help
219 Say Y here if you want the debug print routines to direct
220 their output to the third serial port on these devices.
222 config DEBUG_BCM_KONA_UART
223 bool "Kernel low-level debugging messages via BCM KONA UART"
224 depends on ARCH_BCM_MOBILE
225 select DEBUG_UART_8250
226 help
227 Say Y here if you want kernel low-level debugging support
228 on Broadcom SoC platforms.
229 This low level debug works for Broadcom
230 mobile SoCs in the Kona family of chips (e.g. bcm28155,
231 bcm11351, etc...)
233 config DEBUG_BCM63XX_UART
234 bool "Kernel low-level debugging on BCM63XX UART"
235 depends on ARCH_BCM_63XX
237 config DEBUG_BERLIN_UART
238 bool "Marvell Berlin SoC Debug UART"
239 depends on ARCH_BERLIN
240 select DEBUG_UART_8250
241 help
242 Say Y here if you want kernel low-level debugging support
243 on Marvell Berlin SoC based platforms.
245 config DEBUG_BRCMSTB_UART
246 bool "Use BRCMSTB UART for low-level debug"
247 depends on ARCH_BRCMSTB
248 help
249 Say Y here if you want the debug print routines to direct
250 their output to the first serial port on these devices. The
251 UART physical and virtual address is automatically provided
252 based on the chip identification register value.
254 If you have a Broadcom STB chip and would like early print
255 messages to appear over the UART, select this option.
257 config DEBUG_CLPS711X_UART1
258 bool "Kernel low-level debugging messages via UART1"
259 depends on ARCH_CLPS711X
260 help
261 Say Y here if you want the debug print routines to direct
262 their output to the first serial port on these devices.
264 config DEBUG_CLPS711X_UART2
265 bool "Kernel low-level debugging messages via UART2"
266 depends on ARCH_CLPS711X
267 help
268 Say Y here if you want the debug print routines to direct
269 their output to the second serial port on these devices.
271 config DEBUG_CNS3XXX
272 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
273 depends on ARCH_CNS3XXX
274 select DEBUG_UART_8250
275 help
276 Say Y here if you want the debug print routines to direct
277 their output to the CNS3xxx UART0.
279 config DEBUG_DAVINCI_DA8XX_UART1
280 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
281 depends on ARCH_DAVINCI_DA8XX
282 select DEBUG_UART_8250
283 help
284 Say Y here if you want the debug print routines to direct
285 their output to UART1 serial port on DaVinci DA8XX devices.
287 config DEBUG_DAVINCI_DA8XX_UART2
288 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
289 depends on ARCH_DAVINCI_DA8XX
290 select DEBUG_UART_8250
291 help
292 Say Y here if you want the debug print routines to direct
293 their output to UART2 serial port on DaVinci DA8XX devices.
295 config DEBUG_DAVINCI_DMx_UART0
296 bool "Kernel low-level debugging on DaVinci DMx using UART0"
297 depends on ARCH_DAVINCI_DMx
298 select DEBUG_UART_8250
299 help
300 Say Y here if you want the debug print routines to direct
301 their output to UART0 serial port on DaVinci DMx devices.
303 config DEBUG_DC21285_PORT
304 bool "Kernel low-level debugging messages via footbridge serial port"
305 depends on FOOTBRIDGE
306 help
307 Say Y here if you want the debug print routines to direct
308 their output to the serial port in the DC21285 (Footbridge).
310 config DEBUG_DIGICOLOR_UA0
311 bool "Kernel low-level debugging messages via Digicolor UA0"
312 depends on ARCH_DIGICOLOR
313 help
314 Say Y here if you want the debug print routines to direct
315 their output to the UA0 serial port in the CX92755.
317 config DEBUG_EP93XX
318 bool "Kernel low-level debugging messages via ep93xx UART"
319 depends on ARCH_EP93XX
320 select DEBUG_UART_PL01X
321 help
322 Say Y here if you want kernel low-level debugging support
323 on Cirrus Logic EP93xx based platforms.
325 config DEBUG_FOOTBRIDGE_COM1
326 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
327 depends on FOOTBRIDGE
328 select DEBUG_UART_8250
329 help
330 Say Y here if you want the debug print routines to direct
331 their output to the 8250 at PCI COM1.
333 config DEBUG_GEMINI
334 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
335 depends on ARCH_GEMINI
336 select DEBUG_UART_8250
337 help
338 Say Y here if you want kernel low-level debugging support
339 on Cortina Gemini based platforms.
341 config DEBUG_HI3620_UART
342 bool "Hisilicon HI3620 Debug UART"
343 depends on ARCH_HI3xxx
344 select DEBUG_UART_PL01X
345 help
346 Say Y here if you want kernel low-level debugging support
347 on HI3620 UART.
349 config DEBUG_HIGHBANK_UART
350 bool "Kernel low-level debugging messages via Highbank UART"
351 depends on ARCH_HIGHBANK
352 select DEBUG_UART_PL01X
353 help
354 Say Y here if you want the debug print routines to direct
355 their output to the UART on Highbank based devices.
357 config DEBUG_HIP01_UART
358 bool "Hisilicon Hip01 Debug UART"
359 depends on ARCH_HIP01
360 select DEBUG_UART_8250
361 help
362 Say Y here if you want kernel low-level debugging support
363 on HIP01 UART.
365 config DEBUG_HIP04_UART
366 bool "Hisilicon HiP04 Debug UART"
367 depends on ARCH_HIP04
368 select DEBUG_UART_8250
369 help
370 Say Y here if you want kernel low-level debugging support
371 on HIP04 UART.
373 config DEBUG_HIX5HD2_UART
374 bool "Hisilicon Hix5hd2 Debug UART"
375 depends on ARCH_HIX5HD2
376 select DEBUG_UART_PL01X
377 help
378 Say Y here if you want kernel low-level debugging support
379 on Hix5hd2 UART.
381 config DEBUG_IMX1_UART
382 bool "i.MX1 Debug UART"
383 depends on SOC_IMX1
384 help
385 Say Y here if you want kernel low-level debugging support
386 on i.MX1.
388 config DEBUG_IMX23_UART
389 bool "i.MX23 Debug UART"
390 depends on SOC_IMX23
391 select DEBUG_UART_PL01X
392 help
393 Say Y here if you want kernel low-level debugging support
394 on i.MX23.
396 config DEBUG_IMX25_UART
397 bool "i.MX25 Debug UART"
398 depends on SOC_IMX25
399 help
400 Say Y here if you want kernel low-level debugging support
401 on i.MX25.
403 config DEBUG_IMX21_IMX27_UART
404 bool "i.MX21 and i.MX27 Debug UART"
405 depends on SOC_IMX21 || SOC_IMX27
406 help
407 Say Y here if you want kernel low-level debugging support
408 on i.MX21 or i.MX27.
410 config DEBUG_IMX28_UART
411 bool "i.MX28 Debug UART"
412 depends on SOC_IMX28
413 select DEBUG_UART_PL01X
414 help
415 Say Y here if you want kernel low-level debugging support
416 on i.MX28.
418 config DEBUG_IMX31_UART
419 bool "i.MX31 Debug UART"
420 depends on SOC_IMX31
421 help
422 Say Y here if you want kernel low-level debugging support
423 on i.MX31.
425 config DEBUG_IMX35_UART
426 bool "i.MX35 Debug UART"
427 depends on SOC_IMX35
428 help
429 Say Y here if you want kernel low-level debugging support
430 on i.MX35.
432 config DEBUG_IMX50_UART
433 bool "i.MX50 Debug UART"
434 depends on SOC_IMX50
435 help
436 Say Y here if you want kernel low-level debugging support
437 on i.MX50.
439 config DEBUG_IMX51_UART
440 bool "i.MX51 Debug UART"
441 depends on SOC_IMX51
442 help
443 Say Y here if you want kernel low-level debugging support
444 on i.MX51.
446 config DEBUG_IMX53_UART
447 bool "i.MX53 Debug UART"
448 depends on SOC_IMX53
449 help
450 Say Y here if you want kernel low-level debugging support
451 on i.MX53.
453 config DEBUG_IMX6Q_UART
454 bool "i.MX6Q/DL Debug UART"
455 depends on SOC_IMX6Q
456 help
457 Say Y here if you want kernel low-level debugging support
458 on i.MX6Q/DL.
460 config DEBUG_IMX6SL_UART
461 bool "i.MX6SL Debug UART"
462 depends on SOC_IMX6SL
463 help
464 Say Y here if you want kernel low-level debugging support
465 on i.MX6SL.
467 config DEBUG_IMX6SX_UART
468 bool "i.MX6SX Debug UART"
469 depends on SOC_IMX6SX
470 help
471 Say Y here if you want kernel low-level debugging support
472 on i.MX6SX.
474 config DEBUG_IMX6UL_UART
475 bool "i.MX6UL Debug UART"
476 depends on SOC_IMX6UL
477 help
478 Say Y here if you want kernel low-level debugging support
479 on i.MX6UL.
481 config DEBUG_IMX7D_UART
482 bool "i.MX7D Debug UART"
483 depends on SOC_IMX7D
484 help
485 Say Y here if you want kernel low-level debugging support
486 on i.MX7D.
488 config DEBUG_INTEGRATOR
489 bool "Kernel low-level debugging messages via ARM Integrator UART"
490 depends on ARCH_INTEGRATOR
491 select DEBUG_UART_PL01X
492 help
493 Say Y here if you want kernel low-level debugging support
494 on ARM Integrator platforms.
496 config DEBUG_KEYSTONE_UART0
497 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
498 depends on ARCH_KEYSTONE
499 select DEBUG_UART_8250
500 help
501 Say Y here if you want the debug print routines to direct
502 their output to UART0 serial port on KEYSTONE2 devices.
504 config DEBUG_KEYSTONE_UART1
505 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
506 depends on ARCH_KEYSTONE
507 select DEBUG_UART_8250
508 help
509 Say Y here if you want the debug print routines to direct
510 their output to UART1 serial port on KEYSTONE2 devices.
512 config DEBUG_LPC18XX_UART0
513 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
514 depends on ARCH_LPC18XX
515 select DEBUG_UART_8250
516 help
517 Say Y here if you want kernel low-level debugging support
518 on NXP LPC18xx/43xx UART0.
520 config DEBUG_LPC32XX
521 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
522 depends on ARCH_LPC32XX
523 select DEBUG_UART_8250
524 help
525 Say Y here if you want kernel low-level debugging support
526 on NXP LPC32xx based platforms.
528 config DEBUG_MESON_UARTAO
529 bool "Kernel low-level debugging via Meson6 UARTAO"
530 depends on ARCH_MESON
531 help
532 Say Y here if you want kernel low-lever debugging support
533 on Amlogic Meson6 based platforms on the UARTAO.
535 config DEBUG_MMP_UART2
536 bool "Kernel low-level debugging message via MMP UART2"
537 depends on ARCH_MMP
538 select DEBUG_UART_8250
539 help
540 Say Y here if you want kernel low-level debugging support
541 on MMP UART2.
543 config DEBUG_MMP_UART3
544 bool "Kernel low-level debugging message via MMP UART3"
545 depends on ARCH_MMP
546 select DEBUG_UART_8250
547 help
548 Say Y here if you want kernel low-level debugging support
549 on MMP UART3.
551 config DEBUG_MVEBU_UART0
552 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
553 depends on ARCH_MVEBU
554 depends on ARCH_MVEBU && CPU_V7
555 select DEBUG_UART_8250
556 help
557 Say Y here if you want kernel low-level debugging support
558 on MVEBU based platforms on UART0.
560 This option should be used with the old bootloaders
561 that left the internal registers mapped at
562 0xd0000000. As of today, this is the case on
563 platforms such as the Globalscale Mirabox or the
564 Plathome OpenBlocks AX3, when using the original
565 bootloader.
567 This option will not work on older Marvell platforms
568 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
569 the "new bootloader" variant.
571 If the wrong DEBUG_MVEBU_UART* option is selected,
572 when u-boot hands over to the kernel, the system
573 silently crashes, with no serial output at all.
575 config DEBUG_MVEBU_UART0_ALTERNATE
576 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
577 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
578 select DEBUG_UART_8250
579 help
580 Say Y here if you want kernel low-level debugging support
581 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
582 Kirkwood, Dove, MV78xx0, Orion5x).
585 This option should be used with the new bootloaders
586 that remap the internal registers at 0xf1000000.
588 If the wrong DEBUG_MVEBU_UART* option is selected,
589 when u-boot hands over to the kernel, the system
590 silently crashes, with no serial output at all.
592 config DEBUG_MVEBU_UART1_ALTERNATE
593 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
594 depends on ARCH_MVEBU
595 select DEBUG_UART_8250
596 help
597 Say Y here if you want kernel low-level debugging support
598 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
599 Kirkwood, Dove, MV78xx0, Orion5x).
601 This option should be used with the new bootloaders
602 that remap the internal registers at 0xf1000000.
603 All of the older (pre Armada XP/370) platforms also use
604 this address, regardless of the boot loader version.
606 If the wrong DEBUG_MVEBU_UART* option is selected,
607 when u-boot hands over to the kernel, the system
608 silently crashes, with no serial output at all.
610 config DEBUG_MT6589_UART0
611 bool "Mediatek mt6589 UART0"
612 depends on ARCH_MEDIATEK
613 select DEBUG_UART_8250
614 help
615 Say Y here if you want kernel low-level debugging support
616 for Mediatek mt6589 based platforms on UART0.
618 config DEBUG_MT8127_UART0
619 bool "Mediatek mt8127/mt6592 UART0"
620 depends on ARCH_MEDIATEK
621 select DEBUG_UART_8250
622 help
623 Say Y here if you want kernel low-level debugging support
624 for Mediatek mt8127 based platforms on UART0.
626 config DEBUG_MT8135_UART3
627 bool "Mediatek mt8135 UART3"
628 depends on ARCH_MEDIATEK
629 select DEBUG_UART_8250
630 help
631 Say Y here if you want kernel low-level debugging support
632 for Mediatek mt8135 based platforms on UART3.
634 config DEBUG_NOMADIK_UART
635 bool "Kernel low-level debugging messages via NOMADIK UART"
636 depends on ARCH_NOMADIK
637 select DEBUG_UART_PL01X
638 help
639 Say Y here if you want kernel low-level debugging support
640 on NOMADIK based platforms.
642 config DEBUG_NSPIRE_CLASSIC_UART
643 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
644 depends on ARCH_NSPIRE
645 select DEBUG_UART_8250
646 help
647 Say Y here if you want kernel low-level debugging support
648 on TI-NSPIRE classic models.
650 config DEBUG_NSPIRE_CX_UART
651 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
652 depends on ARCH_NSPIRE
653 select DEBUG_UART_PL01X
654 help
655 Say Y here if you want kernel low-level debugging support
656 on TI-NSPIRE CX models.
658 config DEBUG_OMAP1UART1
659 bool "Kernel low-level debugging via OMAP1 UART1"
660 depends on ARCH_OMAP1
661 select DEBUG_UART_8250
662 help
663 Say Y here if you want kernel low-level debugging support
664 on OMAP1 based platforms (except OMAP730) on the UART1.
666 config DEBUG_OMAP1UART2
667 bool "Kernel low-level debugging via OMAP1 UART2"
668 depends on ARCH_OMAP1
669 select DEBUG_UART_8250
670 help
671 Say Y here if you want kernel low-level debugging support
672 on OMAP1 based platforms (except OMAP730) on the UART2.
674 config DEBUG_OMAP1UART3
675 bool "Kernel low-level debugging via OMAP1 UART3"
676 depends on ARCH_OMAP1
677 select DEBUG_UART_8250
678 help
679 Say Y here if you want kernel low-level debugging support
680 on OMAP1 based platforms (except OMAP730) on the UART3.
682 config DEBUG_OMAP2UART1
683 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
684 depends on ARCH_OMAP2PLUS
685 select DEBUG_UART_8250
686 help
687 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
688 omap3 torpedo and 3530 lv som.
690 config DEBUG_OMAP2UART2
691 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
692 depends on ARCH_OMAP2PLUS
693 select DEBUG_UART_8250
695 config DEBUG_OMAP2UART3
696 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
697 depends on ARCH_OMAP2PLUS
698 select DEBUG_UART_8250
700 config DEBUG_OMAP3UART3
701 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
702 depends on ARCH_OMAP2PLUS
703 select DEBUG_UART_8250
704 help
705 This covers at least cm_t3x, beagle, crane, devkit8000,
706 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
707 and 3517evm.
709 config DEBUG_OMAP4UART3
710 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
711 depends on ARCH_OMAP2PLUS
712 select DEBUG_UART_8250
714 config DEBUG_OMAP3UART4
715 bool "Kernel low-level debugging messages via OMAP36XX UART4"
716 depends on ARCH_OMAP2PLUS
717 select DEBUG_UART_8250
719 config DEBUG_OMAP4UART4
720 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
721 depends on ARCH_OMAP2PLUS
722 select DEBUG_UART_8250
724 config DEBUG_OMAP7XXUART1
725 bool "Kernel low-level debugging via OMAP730 UART1"
726 depends on ARCH_OMAP730
727 select DEBUG_UART_8250
728 help
729 Say Y here if you want kernel low-level debugging support
730 on OMAP730 based platforms on the UART1.
732 config DEBUG_OMAP7XXUART2
733 bool "Kernel low-level debugging via OMAP730 UART2"
734 depends on ARCH_OMAP730
735 select DEBUG_UART_8250
736 help
737 Say Y here if you want kernel low-level debugging support
738 on OMAP730 based platforms on the UART2.
740 config DEBUG_OMAP7XXUART3
741 bool "Kernel low-level debugging via OMAP730 UART3"
742 depends on ARCH_OMAP730
743 select DEBUG_UART_8250
744 help
745 Say Y here if you want kernel low-level debugging support
746 on OMAP730 based platforms on the UART3.
748 config DEBUG_TI81XXUART1
749 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
750 depends on ARCH_OMAP2PLUS
751 select DEBUG_UART_8250
753 config DEBUG_TI81XXUART2
754 bool "Kernel low-level debugging messages via TI81XX UART2"
755 depends on ARCH_OMAP2PLUS
756 select DEBUG_UART_8250
758 config DEBUG_TI81XXUART3
759 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
760 depends on ARCH_OMAP2PLUS
761 select DEBUG_UART_8250
763 config DEBUG_AM33XXUART1
764 bool "Kernel low-level debugging messages via AM33XX UART1"
765 depends on ARCH_OMAP2PLUS
766 select DEBUG_UART_8250
768 config DEBUG_ZOOM_UART
769 bool "Kernel low-level debugging messages via Zoom2/3 UART"
770 depends on ARCH_OMAP2PLUS
771 select DEBUG_OMAP2PLUS_UART
773 config DEBUG_PICOXCELL_UART
774 depends on ARCH_PICOXCELL
775 bool "Use PicoXcell UART for low-level debug"
776 select DEBUG_UART_8250
777 help
778 Say Y here if you want kernel low-level debugging support
779 on PicoXcell based platforms.
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.
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.
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
804 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
805 options based on your needs.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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).
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).
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).
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).
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).
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).
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).
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).
979 config DEBUG_RMOBILE_SCIFA0
980 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
981 depends on ARCH_R8A73A4
982 help
983 Say Y here if you want kernel low-level debugging support
984 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
986 config DEBUG_RMOBILE_SCIFA1
987 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
988 depends on ARCH_R8A7740
989 help
990 Say Y here if you want kernel low-level debugging support
991 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
993 config DEBUG_RMOBILE_SCIFA4
994 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
995 depends on ARCH_SH73A0
996 help
997 Say Y here if you want kernel low-level debugging support
998 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1000 config DEBUG_S3C_UART0
1001 depends on PLAT_SAMSUNG
1002 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1003 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1004 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1005 select DEBUG_S5PV210_UART if ARCH_S5PV210
1006 bool "Use Samsung S3C UART 0 for low-level debug"
1007 help
1008 Say Y here if you want the debug print routines to direct
1009 their output to UART 0. The port must have been initialised
1010 by the boot-loader before use.
1012 config DEBUG_S3C_UART1
1013 depends on PLAT_SAMSUNG
1014 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1015 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1016 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1017 select DEBUG_S5PV210_UART if ARCH_S5PV210
1018 bool "Use Samsung S3C UART 1 for low-level debug"
1019 help
1020 Say Y here if you want the debug print routines to direct
1021 their output to UART 1. The port must have been initialised
1022 by the boot-loader before use.
1024 config DEBUG_S3C_UART2
1025 depends on PLAT_SAMSUNG
1026 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1027 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
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.
1036 config DEBUG_S3C_UART3
1037 depends on PLAT_SAMSUNG && (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.
1047 config DEBUG_S3C2410_UART0
1048 depends on ARCH_S3C24XX
1049 select DEBUG_S3C2410_UART
1050 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1051 help
1052 Say Y here if you want the debug print routines to direct
1053 their output to UART 0. The port must have been initialised
1054 by the boot-loader before use.
1056 config DEBUG_S3C2410_UART1
1057 depends on ARCH_S3C24XX
1058 select DEBUG_S3C2410_UART
1059 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1060 help
1061 Say Y here if you want the debug print routines to direct
1062 their output to UART 1. The port must have been initialised
1063 by the boot-loader before use.
1065 config DEBUG_S3C2410_UART2
1066 depends on ARCH_S3C24XX
1067 select DEBUG_S3C2410_UART
1068 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1069 help
1070 Say Y here if you want the debug print routines to direct
1071 their output to UART 2. The port must have been initialised
1072 by the boot-loader before use.
1074 config DEBUG_SA1100
1075 depends on ARCH_SA1100
1076 bool "Use SA1100 UARTs for low-level debug"
1077 help
1078 Say Y here if you want kernel low-level debugging support
1079 on SA-11x0 UART ports. The kernel will check for the first
1080 enabled UART in a sequence 3-1-2.
1082 config DEBUG_SOCFPGA_UART0
1083 depends on ARCH_SOCFPGA
1084 bool "Use SOCFPGA UART0 for low-level debug"
1085 select DEBUG_UART_8250
1086 help
1087 Say Y here if you want kernel low-level debugging support
1088 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1090 config DEBUG_SOCFPGA_ARRIA10_UART1
1091 depends on ARCH_SOCFPGA
1092 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1093 select DEBUG_UART_8250
1094 help
1095 Say Y here if you want kernel low-level debugging support
1096 on SOCFPGA(Arria 10) based platforms.
1098 config DEBUG_SOCFPGA_CYCLONE5_UART1
1099 depends on ARCH_SOCFPGA
1100 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1101 select DEBUG_UART_8250
1102 help
1103 Say Y here if you want kernel low-level debugging support
1104 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1106 config DEBUG_SUN9I_UART0
1107 bool "Kernel low-level debugging messages via sun9i UART0"
1108 depends on MACH_SUN9I
1109 select DEBUG_UART_8250
1110 help
1111 Say Y here if you want kernel low-level debugging support
1112 on Allwinner A80 based platforms on the UART0.
1114 config DEBUG_SUNXI_UART0
1115 bool "Kernel low-level debugging messages via sunXi UART0"
1116 depends on ARCH_SUNXI
1117 select DEBUG_UART_8250
1118 help
1119 Say Y here if you want kernel low-level debugging support
1120 on Allwinner A1X based platforms on the UART0.
1122 config DEBUG_SUNXI_UART1
1123 bool "Kernel low-level debugging messages via sunXi UART1"
1124 depends on ARCH_SUNXI
1125 select DEBUG_UART_8250
1126 help
1127 Say Y here if you want kernel low-level debugging support
1128 on Allwinner A1X based platforms on the UART1.
1130 config DEBUG_SUNXI_R_UART
1131 bool "Kernel low-level debugging messages via sunXi R_UART"
1132 depends on MACH_SUN6I || MACH_SUN8I
1133 select DEBUG_UART_8250
1134 help
1135 Say Y here if you want kernel low-level debugging support
1136 on Allwinner A31/A23 based platforms on the R_UART.
1138 config DEBUG_SIRFPRIMA2_UART1
1139 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1140 depends on ARCH_PRIMA2
1141 select DEBUG_SIRFSOC_UART
1142 help
1143 Say Y here if you want the debug print routines to direct
1144 their output to the uart1 port on SiRFprimaII devices.
1146 config DEBUG_SIRFATLAS7_UART0
1147 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1148 depends on ARCH_ATLAS7
1149 select DEBUG_SIRFSOC_UART
1150 help
1151 Say Y here if you want the debug print routines to direct
1152 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1153 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1154 debug port can be very useful.
1156 config DEBUG_SIRFATLAS7_UART1
1157 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1158 depends on ARCH_ATLAS7
1159 select DEBUG_SIRFSOC_UART
1160 help
1161 Say Y here if you want the debug print routines to direct
1162 their output to the uart1 port on SiRFATLAS7 devices.
1164 config DEBUG_SPEAR3XX
1165 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1166 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1167 select DEBUG_UART_PL01X
1168 help
1169 Say Y here if you want kernel low-level debugging support
1170 on ST SPEAr based platforms.
1172 config DEBUG_SPEAR13XX
1173 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1174 depends on ARCH_SPEAR13XX
1175 select DEBUG_UART_PL01X
1176 help
1177 Say Y here if you want kernel low-level debugging support
1178 on ST SPEAr13xx based platforms.
1180 config STIH41X_DEBUG_ASC2
1181 bool "Use StiH415/416 ASC2 UART for low-level debug"
1182 depends on ARCH_STI
1183 select DEBUG_STI_UART
1184 help
1185 Say Y here if you want kernel low-level debugging support
1186 on STiH415/416 based platforms like b2000, which has
1187 default UART wired up to ASC2.
1189 If unsure, say N.
1191 config STIH41X_DEBUG_SBC_ASC1
1192 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1193 depends on ARCH_STI
1194 select DEBUG_STI_UART
1195 help
1196 Say Y here if you want kernel low-level debugging support
1197 on STiH415/416 based platforms like b2020. which has
1198 default UART wired up to SBC ASC1.
1200 If unsure, say N.
1202 config STM32F4_DEBUG_UART
1203 bool "Use STM32F4 UART for low-level debug"
1204 depends on MACH_STM32F429 || MACH_STM32F469
1205 select DEBUG_STM32_UART
1206 help
1207 Say Y here if you want kernel low-level debugging support
1208 on STM32F4 based platforms, which default UART is wired on
1209 USART1, but another UART instance can be selected by modifying
1210 CONFIG_DEBUG_UART_PHYS.
1212 If unsure, say N.
1214 config STM32F7_DEBUG_UART
1215 bool "Use STM32F7 UART for low-level debug"
1216 depends on MACH_STM32F746 || MACH_STM32F769
1217 select DEBUG_STM32_UART
1218 help
1219 Say Y here if you want kernel low-level debugging support
1220 on STM32F7 based platforms, which default UART is wired on
1221 USART1, but another UART instance can be selected by modifying
1222 CONFIG_DEBUG_UART_PHYS.
1224 If unsure, say N.
1226 config STM32H7_DEBUG_UART
1227 bool "Use STM32H7 UART for low-level debug"
1228 depends on MACH_STM32H743
1229 select DEBUG_STM32_UART
1230 help
1231 Say Y here if you want kernel low-level debugging support
1232 on STM32H7 based platforms, which default UART is wired on
1233 USART1, but another UART instance can be selected by modifying
1234 CONFIG_DEBUG_UART_PHYS.
1236 If unsure, say N.
1238 config STM32MP1_DEBUG_UART
1239 bool "Use STM32MP1 UART for low-level debug"
1240 depends on MACH_STM32MP157
1241 select DEBUG_STM32_UART
1242 help
1243 Say Y here if you want kernel low-level debugging support
1244 on STM32MP1 based platforms, wich default UART is wired on
1245 UART4, but another UART instance can be selected by modifying
1246 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1248 If unsure, say N.
1250 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1251 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1252 depends on ARCH_TEGRA
1253 select DEBUG_TEGRA_UART
1254 help
1255 Automatically determines which UART to use for low-level
1256 debug based on the ODMDATA value. This value is part of
1257 the BCT, and is written to the boot memory device using
1258 nvflash, or other flashing tool. When bits 19:18 are 3,
1259 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1260 are UART A/B/C/D/E.
1262 config TEGRA_DEBUG_UARTA
1263 bool "Kernel low-level debugging messages via Tegra UART A"
1264 depends on ARCH_TEGRA
1265 select DEBUG_TEGRA_UART
1266 help
1267 Say Y here if you want kernel low-level debugging support
1268 on Tegra based platforms.
1270 config TEGRA_DEBUG_UARTB
1271 bool "Kernel low-level debugging messages via Tegra UART B"
1272 depends on ARCH_TEGRA
1273 select DEBUG_TEGRA_UART
1274 help
1275 Say Y here if you want kernel low-level debugging support
1276 on Tegra based platforms.
1278 config TEGRA_DEBUG_UARTC
1279 bool "Kernel low-level debugging messages via Tegra UART C"
1280 depends on ARCH_TEGRA
1281 select DEBUG_TEGRA_UART
1282 help
1283 Say Y here if you want kernel low-level debugging support
1284 on Tegra based platforms.
1286 config TEGRA_DEBUG_UARTD
1287 bool "Kernel low-level debugging messages via Tegra UART D"
1288 depends on ARCH_TEGRA
1289 select DEBUG_TEGRA_UART
1290 help
1291 Say Y here if you want kernel low-level debugging support
1292 on Tegra based platforms.
1294 config TEGRA_DEBUG_UARTE
1295 bool "Kernel low-level debugging messages via Tegra UART E"
1296 depends on ARCH_TEGRA
1297 select DEBUG_TEGRA_UART
1298 help
1299 Say Y here if you want kernel low-level debugging support
1300 on Tegra based platforms.
1302 config DEBUG_U300_UART
1303 bool "Kernel low-level debugging messages via U300 UART0"
1304 depends on ARCH_U300
1305 select DEBUG_UART_PL01X
1306 help
1307 Say Y here if you want the debug print routines to direct
1308 their output to the uart port on U300 devices.
1310 config DEBUG_UX500_UART
1311 depends on ARCH_U8500
1312 bool "Use Ux500 UART for low-level debug"
1313 help
1314 Say Y here if you want kernel low-level debugging support
1315 on Ux500 based platforms.
1317 config DEBUG_VERSATILE
1318 bool "Kernel low-level debugging messages via ARM Versatile UART"
1319 depends on ARCH_VERSATILE
1320 select DEBUG_UART_PL01X
1321 help
1322 Say Y here if you want kernel low-level debugging support
1323 on ARM Versatile platforms.
1325 config DEBUG_VEXPRESS_UART0_DETECT
1326 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1327 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1328 help
1329 This option enables a simple heuristic which tries to determine
1330 the motherboard's memory map variant (original or RS1) and then
1331 choose the relevant UART0 base address.
1333 Note that this will only work with standard A-class core tiles,
1334 and may fail with non-standard SMM or custom software models.
1336 config DEBUG_VEXPRESS_UART0_CA9
1337 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1338 depends on ARCH_VEXPRESS
1339 select DEBUG_UART_PL01X
1340 help
1341 This option selects UART0 at 0x10009000. Except for custom models,
1342 this applies only to the V2P-CA9 tile.
1344 config DEBUG_VEXPRESS_UART0_RS1
1345 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1346 depends on ARCH_VEXPRESS
1347 select DEBUG_UART_PL01X
1348 help
1349 This option selects UART0 at 0x1c090000. This applies to most
1350 of the tiles using the RS1 memory map, including all new A-class
1351 core tiles, FPGA-based SMMs and software models.
1353 config DEBUG_VEXPRESS_UART0_CRX
1354 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1355 depends on ARCH_VEXPRESS && !MMU
1356 select DEBUG_UART_PL01X
1357 help
1358 This option selects UART0 at 0xb0090000. This is appropriate for
1359 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1361 config DEBUG_VF_UART
1362 bool "Vybrid UART"
1363 depends on SOC_VF610
1364 help
1365 Say Y here if you want kernel low-level debugging support
1366 on Vybrid based platforms.
1368 config DEBUG_VT8500_UART0
1369 bool "Use UART0 on VIA/Wondermedia SoCs"
1370 depends on ARCH_VT8500
1371 help
1372 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1373 devices, including VT8500, WM8505, WM8650 and WM8850.
1375 config DEBUG_ZTE_ZX
1376 bool "Use ZTE ZX UART"
1377 select DEBUG_UART_PL01X
1378 depends on ARCH_ZX
1379 help
1380 Say Y here if you are enabling ZTE ZX296702 SOC and need
1381 debug uart support.
1383 This option is preferred over the platform specific
1384 options; the platform specific options are deprecated
1385 and will be soon removed.
1387 config DEBUG_ZYNQ_UART0
1388 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1389 depends on ARCH_ZYNQ
1390 help
1391 Say Y here if you want the debug print routines to direct
1392 their output to UART0 on the Zynq platform.
1394 config DEBUG_ZYNQ_UART1
1395 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1396 depends on ARCH_ZYNQ
1397 help
1398 Say Y here if you want the debug print routines to direct
1399 their output to UART1 on the Zynq platform.
1401 If you have a ZC702 board and want early boot messages to
1402 appear on the USB serial adaptor, select this option.
1404 config DEBUG_ICEDCC
1405 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1406 help
1407 Say Y here if you want the debug print routines to direct
1408 their output to the EmbeddedICE macrocell's DCC channel using
1409 co-processor 14. This is known to work on the ARM9 style ICE
1410 channel and on the XScale with the PEEDI.
1412 Note that the system will appear to hang during boot if there
1413 is nothing connected to read from the DCC.
1415 config DEBUG_SEMIHOSTING
1416 bool "Kernel low-level debug output via semihosting I/O"
1417 help
1418 Semihosting enables code running on an ARM target to use
1419 the I/O facilities on a host debugger/emulator through a
1420 simple SVC call. The host debugger or emulator must have
1421 semihosting enabled for the special svc call to be trapped
1422 otherwise the kernel will crash.
1424 This is known to work with OpenOCD, as well as
1425 ARM's Fast Models, or any other controlling environment
1426 that implements semihosting.
1428 For more details about semihosting, please see
1429 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1431 config DEBUG_LL_UART_8250
1432 bool "Kernel low-level debugging via 8250 UART"
1433 help
1434 Say Y here if you wish the debug print routes to direct
1435 their output to an 8250 UART. You can use this option
1436 to provide the parameters for the 8250 UART rather than
1437 selecting one of the platform specific options above if
1438 you know the parameters for the port.
1440 This option is preferred over the platform specific
1441 options; the platform specific options are deprecated
1442 and will be soon removed.
1444 config DEBUG_LL_UART_EFM32
1445 bool "Kernel low-level debugging via efm32 UART"
1446 depends on ARCH_EFM32
1447 help
1448 Say Y here if you want the debug print routines to direct
1449 their output to an UART or USART port on efm32 based
1450 machines. Use the following addresses for DEBUG_UART_PHYS:
1452 0x4000c000 | USART0
1453 0x4000c400 | USART1
1454 0x4000c800 | USART2
1455 0x4000e000 | UART0
1456 0x4000e400 | UART1
1458 config DEBUG_LL_UART_PL01X
1459 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1460 help
1461 Say Y here if you wish the debug print routes to direct
1462 their output to a PL01x Primecell UART. You can use
1463 this option to provide the parameters for the UART
1464 rather than selecting one of the platform specific
1465 options above if you know the parameters for the port.
1467 This option is preferred over the platform specific
1468 options; the platform specific options are deprecated
1469 and will be soon removed.
1471 endchoice
1473 config DEBUG_AT91_UART
1474 bool
1475 depends on ARCH_AT91
1477 config DEBUG_EXYNOS_UART
1478 bool
1480 config DEBUG_S3C2410_UART
1481 bool
1482 select DEBUG_S3C24XX_UART
1484 config DEBUG_S3C24XX_UART
1485 bool
1487 config DEBUG_S3C64XX_UART
1488 bool
1490 config DEBUG_S5PV210_UART
1491 bool
1493 config DEBUG_OMAP2PLUS_UART
1494 bool
1495 depends on ARCH_OMAP2PLUS
1497 config DEBUG_IMX_UART_PORT
1498 int "i.MX Debug UART Port Selection"
1499 depends on DEBUG_IMX1_UART || \
1500 DEBUG_IMX25_UART || \
1501 DEBUG_IMX21_IMX27_UART || \
1502 DEBUG_IMX31_UART || \
1503 DEBUG_IMX35_UART || \
1504 DEBUG_IMX50_UART || \
1505 DEBUG_IMX51_UART || \
1506 DEBUG_IMX53_UART || \
1507 DEBUG_IMX6Q_UART || \
1508 DEBUG_IMX6SL_UART || \
1509 DEBUG_IMX6SX_UART || \
1510 DEBUG_IMX6UL_UART || \
1511 DEBUG_IMX7D_UART
1512 default 1
1513 help
1514 Choose UART port on which kernel low-level debug messages
1515 should be output.
1517 config DEBUG_VF_UART_PORT
1518 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1519 default 1
1520 range 0 3
1521 depends on SOC_VF610
1522 help
1523 Choose UART port on which kernel low-level debug messages
1524 should be output.
1526 config DEBUG_TEGRA_UART
1527 bool
1528 depends on ARCH_TEGRA
1530 config DEBUG_STI_UART
1531 bool
1532 depends on ARCH_STI
1534 config DEBUG_STM32_UART
1535 bool
1536 depends on ARCH_STM32
1538 config DEBUG_SIRFSOC_UART
1539 bool
1540 depends on ARCH_SIRF
1542 config DEBUG_LL_INCLUDE
1543 string
1544 default "debug/sa1100.S" if DEBUG_SA1100
1545 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1546 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1547 default "debug/at91.S" if DEBUG_AT91_UART
1548 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1549 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1550 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1551 default "debug/meson.S" if DEBUG_MESON_UARTAO
1552 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1553 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1554 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1555 default "debug/icedcc.S" if DEBUG_ICEDCC
1556 default "debug/imx.S" if DEBUG_IMX1_UART || \
1557 DEBUG_IMX25_UART || \
1558 DEBUG_IMX21_IMX27_UART || \
1559 DEBUG_IMX31_UART || \
1560 DEBUG_IMX35_UART || \
1561 DEBUG_IMX50_UART || \
1562 DEBUG_IMX51_UART || \
1563 DEBUG_IMX53_UART ||\
1564 DEBUG_IMX6Q_UART || \
1565 DEBUG_IMX6SL_UART || \
1566 DEBUG_IMX6SX_UART || \
1567 DEBUG_IMX6UL_UART || \
1568 DEBUG_IMX7D_UART
1569 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1570 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1571 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1572 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1573 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1574 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1575 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1576 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1577 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1578 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1579 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1580 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1581 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1582 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1583 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1584 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1585 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1586 default "debug/sti.S" if DEBUG_STI_UART
1587 default "debug/stm32.S" if DEBUG_STM32_UART
1588 default "debug/tegra.S" if DEBUG_TEGRA_UART
1589 default "debug/ux500.S" if DEBUG_UX500_UART
1590 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1591 default "debug/vf.S" if DEBUG_VF_UART
1592 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1593 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1594 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1595 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1596 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1597 default "mach/debug-macro.S"
1599 # Compatibility options for PL01x
1600 config DEBUG_UART_PL01X
1601 bool
1603 # Compatibility options for 8250
1604 config DEBUG_UART_8250
1605 def_bool ARCH_EBSA110 || ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
1607 config DEBUG_UART_PHYS
1608 hex "Physical base address of debug UART"
1609 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1610 default 0x01c28000 if DEBUG_SUNXI_UART0
1611 default 0x01c28400 if DEBUG_SUNXI_UART1
1612 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1613 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1614 default 0x01f02800 if DEBUG_SUNXI_R_UART
1615 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1616 default 0x02531000 if DEBUG_KEYSTONE_UART1
1617 default 0x03010fe0 if ARCH_RPC
1618 default 0x07000000 if DEBUG_SUN9I_UART0
1619 default 0x09405000 if DEBUG_ZTE_ZX
1620 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1621 DEBUG_VEXPRESS_UART0_CA9
1622 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1623 default 0x10124000 if DEBUG_RK3X_UART0
1624 default 0x10126000 if DEBUG_RK3X_UART1
1625 default 0x101f1000 if DEBUG_VERSATILE
1626 default 0x101fb000 if DEBUG_NOMADIK_UART
1627 default 0x10210000 if DEBUG_RV1108_UART2
1628 default 0x10220000 if DEBUG_RV1108_UART1
1629 default 0x10230000 if DEBUG_RV1108_UART0
1630 default 0x11002000 if DEBUG_MT8127_UART0
1631 default 0x11006000 if DEBUG_MT6589_UART0
1632 default 0x11009000 if DEBUG_MT8135_UART3
1633 default 0x16000000 if DEBUG_INTEGRATOR
1634 default 0x18000300 if DEBUG_BCM_5301X
1635 default 0x18000400 if DEBUG_BCM_HR2
1636 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1637 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1638 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1639 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1640 default 0x20001000 if DEBUG_HIP01_UART
1641 default 0x20060000 if DEBUG_RK29_UART0
1642 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1643 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1644 default 0x20201000 if DEBUG_BCM2835
1645 default 0x3e000000 if DEBUG_BCM_KONA_UART
1646 default 0x3f201000 if DEBUG_BCM2836
1647 default 0x4000e400 if DEBUG_LL_UART_EFM32
1648 default 0x40010000 if STM32MP1_DEBUG_UART
1649 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1650 STM32H7_DEBUG_UART
1651 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1652 default 0x40081000 if DEBUG_LPC18XX_UART0
1653 default 0x40090000 if DEBUG_LPC32XX
1654 default 0x40100000 if DEBUG_PXA_UART1
1655 default 0x42000000 if DEBUG_GEMINI
1656 default 0x44e09000 if DEBUG_AM33XXUART1
1657 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1658 default 0x48022000 if DEBUG_TI81XXUART2
1659 default 0x48024000 if DEBUG_TI81XXUART3
1660 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1661 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1662 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1663 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1664 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1665 default 0x49020000 if DEBUG_OMAP3UART3
1666 default 0x49042000 if DEBUG_OMAP3UART4
1667 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1668 DEBUG_S3C2410_UART0)
1669 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1670 DEBUG_S3C2410_UART1)
1671 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1672 DEBUG_S3C2410_UART2)
1673 default 0x78000000 if DEBUG_CNS3XXX
1674 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1675 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1676 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1677 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1678 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1679 default 0x80010000 if DEBUG_ASM9260_UART
1680 default 0x80070000 if DEBUG_IMX23_UART
1681 default 0x80074000 if DEBUG_IMX28_UART
1682 default 0x80230000 if DEBUG_PICOXCELL_UART
1683 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1684 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1685 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1686 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1687 default 0xc0013000 if DEBUG_U300_UART
1688 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1689 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1690 default 0xd0000000 if DEBUG_SPEAR3XX
1691 default 0xd0012000 if DEBUG_MVEBU_UART0
1692 default 0xc81004c0 if DEBUG_MESON_UARTAO
1693 default 0xd4017000 if DEBUG_MMP_UART2
1694 default 0xd4018000 if DEBUG_MMP_UART3
1695 default 0xe0000000 if DEBUG_SPEAR13XX
1696 default 0xe4007000 if DEBUG_HIP04_UART
1697 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1698 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1699 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1700 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1701 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1702 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1703 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1704 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1705 default 0xe8009000 if DEBUG_R7S9210_SCIF4
1706 default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1707 default 0xf0000be0 if ARCH_EBSA110
1708 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1709 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1710 default 0xf7fc9000 if DEBUG_BERLIN_UART
1711 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1712 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1713 default 0xf991e000 if DEBUG_QCOM_UARTDM
1714 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1715 default 0xfcb00000 if DEBUG_HI3620_UART
1716 default 0xfd883000 if DEBUG_ALPINE_UART0
1717 default 0xfe800000 if ARCH_IOP32X
1718 default 0xff690000 if DEBUG_RK32_UART2
1719 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1720 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1721 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1722 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1723 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1724 default 0xfff36000 if DEBUG_HIGHBANK_UART
1725 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1726 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1727 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1728 default 0xfffe8600 if DEBUG_BCM63XX_UART
1729 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1730 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1731 depends on ARCH_EP93XX || \
1732 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1733 DEBUG_LL_UART_EFM32 || \
1734 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1735 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1736 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1737 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1738 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1739 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1740 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1741 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1742 DEBUG_S3C64XX_UART || \
1743 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1744 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1745 DEBUG_AT91_UART || DEBUG_STM32_UART
1747 config DEBUG_UART_VIRT
1748 hex "Virtual base address of debug UART"
1749 default 0xc881f000 if DEBUG_RV1108_UART2
1750 default 0xc8821000 if DEBUG_RV1108_UART1
1751 default 0xc8912000 if DEBUG_RV1108_UART0
1752 default 0xe0010fe0 if ARCH_RPC
1753 default 0xf0000be0 if ARCH_EBSA110
1754 default 0xf0010000 if DEBUG_ASM9260_UART
1755 default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1756 default 0xf01fb000 if DEBUG_NOMADIK_UART
1757 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1758 default 0xf1000300 if DEBUG_BCM_5301X
1759 default 0xf1000400 if DEBUG_BCM_HR2
1760 default 0xf1002000 if DEBUG_MT8127_UART0
1761 default 0xf1006000 if DEBUG_MT6589_UART0
1762 default 0xf1009000 if DEBUG_MT8135_UART3
1763 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1764 default 0xf11f1000 if DEBUG_VERSATILE
1765 default 0xf1600000 if DEBUG_INTEGRATOR
1766 default 0xf1c28000 if DEBUG_SUNXI_UART0
1767 default 0xf1c28400 if DEBUG_SUNXI_UART1
1768 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1769 default 0xf31004c0 if DEBUG_MESON_UARTAO
1770 default 0xf4090000 if DEBUG_LPC32XX
1771 default 0xf4200000 if DEBUG_GEMINI
1772 default 0xf6200000 if DEBUG_PXA_UART1
1773 default 0xf7000000 if DEBUG_SUN9I_UART0
1774 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1775 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1776 DEBUG_S3C2410_UART0)
1777 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1778 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1779 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1780 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1781 DEBUG_S3C2410_UART1)
1782 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1783 DEBUG_S3C2410_UART2)
1784 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1785 default 0xf7fc9000 if DEBUG_BERLIN_UART
1786 default 0xf8007000 if DEBUG_HIP04_UART
1787 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1788 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1789 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1790 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1791 default 0xf9e09000 if DEBUG_AM33XXUART1
1792 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1793 default 0xfa022000 if DEBUG_TI81XXUART2
1794 default 0xfa024000 if DEBUG_TI81XXUART3
1795 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1796 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1797 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1798 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1799 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1800 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1801 default 0xfb002000 if DEBUG_CNS3XXX
1802 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1803 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1804 default 0xfb020000 if DEBUG_OMAP3UART3
1805 default 0xfb042000 if DEBUG_OMAP3UART4
1806 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1807 default 0xfc705000 if DEBUG_ZTE_ZX
1808 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1809 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1810 default 0xfd883000 if DEBUG_ALPINE_UART0
1811 default 0xfe010000 if STM32MP1_DEBUG_UART
1812 default 0xfe017000 if DEBUG_MMP_UART2
1813 default 0xfe018000 if DEBUG_MMP_UART3
1814 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1815 default 0xfe230000 if DEBUG_PICOXCELL_UART
1816 default 0xfe300000 if DEBUG_BCM_KONA_UART
1817 default 0xfe800000 if ARCH_IOP32X
1818 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1819 default 0xfeb24000 if DEBUG_RK3X_UART0
1820 default 0xfeb26000 if DEBUG_RK3X_UART1
1821 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1822 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1823 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1824 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1825 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1826 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1827 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1828 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1829 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1830 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1831 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1832 default 0xfec90000 if DEBUG_RK32_UART2
1833 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1834 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1835 default 0xfed60000 if DEBUG_RK29_UART0
1836 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1837 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1838 default 0xfedc0000 if DEBUG_EP93XX
1839 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1840 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1841 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1842 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1843 default 0xfef36000 if DEBUG_HIGHBANK_UART
1844 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1845 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1846 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1847 default 0xff003000 if DEBUG_U300_UART
1848 default 0xffd01000 if DEBUG_HIP01_UART
1849 default DEBUG_UART_PHYS if !MMU
1850 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1851 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1852 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1853 DEBUG_S3C64XX_UART || \
1854 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1855 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1856 DEBUG_AT91_UART || DEBUG_STM32_UART
1858 config DEBUG_UART_8250_SHIFT
1859 int "Register offset shift for the 8250 debug UART"
1860 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1861 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1862 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1863 DEBUG_OMAP7XXUART3
1864 default 2
1866 config DEBUG_UART_8250_WORD
1867 bool "Use 32-bit accesses for 8250 UART"
1868 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1869 depends on DEBUG_UART_8250_SHIFT >= 2
1870 default y if DEBUG_PICOXCELL_UART || \
1871 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1872 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1873 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1874 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1875 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1876 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1878 config DEBUG_UART_8250_PALMCHIP
1879 bool "8250 UART is Palmchip BK-310x"
1880 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1881 help
1882 Palmchip provides a UART implementation compatible with 16550
1883 except for having a different register layout. Say Y here if
1884 the debug UART is of this type.
1886 config DEBUG_UART_8250_FLOW_CONTROL
1887 bool "Enable flow control for 8250 UART"
1888 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1889 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1891 config DEBUG_UNCOMPRESS
1892 bool "Enable decompressor debugging via DEBUG_LL output"
1893 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1894 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1895 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1896 !DEBUG_BRCMSTB_UART
1897 help
1898 This option influences the normal decompressor output for
1899 multiplatform kernels. Normally, multiplatform kernels disable
1900 decompressor output because it is not possible to know where to
1901 send the decompressor output.
1903 When this option is set, the selected DEBUG_LL output method
1904 will be re-used for normal decompressor output on multiplatform
1905 kernels.
1908 config UNCOMPRESS_INCLUDE
1909 string
1910 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1911 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1912 default "mach/uncompress.h"
1914 config EARLY_PRINTK
1915 bool "Early printk"
1916 depends on DEBUG_LL
1917 help
1918 Say Y here if you want to have an early console using the
1919 kernel low-level debugging functions. Add earlyprintk to your
1920 kernel parameters to enable this console.
1922 config ARM_KPROBES_TEST
1923 tristate "Kprobes test module"
1924 depends on KPROBES && MODULES
1925 help
1926 Perform tests of kprobes API and instruction set simulation.
1928 config PID_IN_CONTEXTIDR
1929 bool "Write the current PID to the CONTEXTIDR register"
1930 depends on CPU_COPY_V6
1931 help
1932 Enabling this option causes the kernel to write the current PID to
1933 the PROCID field of the CONTEXTIDR register, at the expense of some
1934 additional instructions during context switch. Say Y here only if you
1935 are planning to use hardware trace tools with this kernel.
1937 source "drivers/hwtracing/coresight/Kconfig"