xref: /linux/arch/arm/Kconfig.debug (revision 79790b6818e96c58fe2bffee1b418c16e64e7b80)
1# SPDX-License-Identifier: GPL-2.0
2
3config ARM_PTDUMP_CORE
4	def_bool n
5
6config ARM_PTDUMP_DEBUGFS
7	bool "Export kernel pagetable layout to userspace via debugfs"
8	depends on DEBUG_KERNEL
9	depends on MMU
10	select ARM_PTDUMP_CORE
11	select DEBUG_FS
12	help
13	  Say Y here if you want to show the kernel pagetable layout in a
14	  debugfs file. This information is only useful for kernel developers
15	  who are working in architecture specific areas of the kernel.
16	  It is probably not a good idea to enable this feature in a production
17	  kernel.
18	  If in doubt, say "N"
19
20config ARM_DEBUG_WX
21	bool "Warn on W+X mappings at boot"
22	depends on MMU
23	select ARM_PTDUMP_CORE
24	help
25		Generate a warning if any W+X mappings are found at boot.
26
27		This is useful for discovering cases where the kernel is leaving
28		W+X mappings after applying NX, as such mappings are a security risk.
29
30		Look for a message in dmesg output like this:
31
32			arm/mm: Checked W+X mappings: passed, no W+X pages found.
33
34		or like this, if the check failed:
35
36			arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
37
38		Note that even if the check fails, your kernel is possibly
39		still fine, as W+X mappings are not a security hole in
40		themselves, what they do is that they make the exploitation
41		of other unfixed kernel bugs easier.
42
43		There is no runtime or memory usage effect of this option
44		once the kernel has booted up - it's a one time check.
45
46		If in doubt, say "Y".
47
48choice
49	prompt "Choose kernel unwinder"
50	default UNWINDER_ARM if AEABI
51	default UNWINDER_FRAME_POINTER if !AEABI
52	help
53	  This determines which method will be used for unwinding kernel stack
54	  traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
55	  livepatch, lockdep, and more.
56
57config UNWINDER_FRAME_POINTER
58	bool "Frame pointer unwinder"
59	depends on !THUMB2_KERNEL
60	select ARCH_WANT_FRAME_POINTERS
61	select FRAME_POINTER
62	help
63	  This option enables the frame pointer unwinder for unwinding
64	  kernel stack traces.
65
66config UNWINDER_ARM
67	bool "ARM EABI stack unwinder"
68	depends on AEABI
69	select ARM_UNWIND
70	help
71	  This option enables stack unwinding support in the kernel
72	  using the information automatically generated by the
73	  compiler. The resulting kernel image is slightly bigger but
74	  the performance is not affected. Currently, this feature
75	  only works with EABI compilers.
76
77endchoice
78
79config ARM_UNWIND
80	bool
81
82config BACKTRACE_VERBOSE
83	bool "Verbose backtrace"
84	depends on EXPERT
85	help
86	  When the kernel produces a warning or oops, the kernel prints a
87	  trace of the call chain. This option controls whether we include
88	  the numeric addresses or only include the symbolic information.
89
90	  In most cases, say N here, unless you are intending to debug the
91	  kernel and have access to the kernel binary image.
92
93config DEBUG_USER
94	bool "Verbose user fault messages"
95	help
96	  When a user program crashes due to an exception, the kernel can
97	  print a brief message explaining what the problem was. This is
98	  sometimes helpful for debugging but serves no purpose on a
99	  production system. Most people should say N here.
100
101	  In addition, you need to pass user_debug=N on the kernel command
102	  line to enable this feature.  N consists of the sum of:
103
104	      1 - undefined instruction events
105	      2 - system calls
106	      4 - invalid data aborts
107	      8 - SIGSEGV faults
108	     16 - SIGBUS faults
109
110# These options are only for real kernel hackers who want to get their hands dirty.
111config DEBUG_LL
112	bool "Kernel low-level debugging functions (read help!)"
113	depends on DEBUG_KERNEL
114	help
115	  Say Y here to include definitions of printascii, printch, printhex
116	  in the kernel.  This is helpful if you are debugging code that
117	  executes before the console is initialized.
118
119	  Note that selecting this option will limit the kernel to a single
120	  UART definition, as specified below. Attempting to boot the kernel
121	  image on a different platform *will not work*, so this option should
122	  not be enabled for kernels that are intended to be portable.
123
124choice
125	prompt "Kernel low-level debugging port"
126	depends on DEBUG_LL
127
128	config DEBUG_ALPINE_UART0
129		bool "Kernel low-level debugging messages via Alpine UART0"
130		depends on ARCH_ALPINE
131		select DEBUG_UART_8250
132		help
133		  Say Y here if you want kernel low-level debugging support
134		  on Alpine based platforms.
135
136	config DEBUG_ASM9260_UART
137		bool "Kernel low-level debugging via asm9260 UART"
138		depends on MACH_ASM9260
139		help
140		  Say Y here if you want the debug print routines to direct
141		  their output to an UART or USART port on asm9260 based
142		  machines.
143
144		    DEBUG_UART_PHYS | DEBUG_UART_VIRT
145
146		    0x80000000      | 0xf0000000     | UART0
147		    0x80004000      | 0xf0004000     | UART1
148		    0x80008000      | 0xf0008000     | UART2
149		    0x8000c000      | 0xf000c000     | UART3
150		    0x80010000      | 0xf0010000     | UART4
151		    0x80014000      | 0xf0014000     | UART5
152		    0x80018000      | 0xf0018000     | UART6
153		    0x8001c000      | 0xf001c000     | UART7
154		    0x80020000      | 0xf0020000     | UART8
155		    0x80024000      | 0xf0024000     | UART9
156
157	config DEBUG_AT91_RM9200_DBGU
158		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
159		select DEBUG_AT91_UART
160		depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
161		help
162		  Say Y here if you want kernel low-level debugging support
163		  on the DBGU port of:
164		    at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
165		    at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
166
167	config DEBUG_AT91_SAM9263_DBGU
168		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
169		select DEBUG_AT91_UART
170		depends on SOC_AT91SAM9 || SOC_SAMA5D3
171		help
172		  Say Y here if you want kernel low-level debugging support
173		  on the DBGU port of:
174		    at91sam9263, at91sam9g45, at91sam9m10,
175		    sama5d3
176
177	config DEBUG_AT91_SAMA5D2_UART1
178		bool "Kernel low-level debugging on SAMA5D2 UART1"
179		select DEBUG_AT91_UART
180		depends on SOC_SAMA5D2
181		help
182		  Say Y here if you want kernel low-level debugging support
183		  on the UART1 port of sama5d2.
184
185	config DEBUG_AT91_SAMA5D4_USART3
186		bool "Kernel low-level debugging on SAMA5D4 USART3"
187		select DEBUG_AT91_UART
188		depends on SOC_SAMA5D4
189		help
190		  Say Y here if you want kernel low-level debugging support
191		  on the USART3 port of sama5d4.
192
193	config DEBUG_AT91_SAMV7_USART1
194		bool "Kernel low-level debugging via SAMV7 USART1"
195		select DEBUG_AT91_UART
196		depends on SOC_SAMV7
197		help
198		  Say Y here if you want the debug print routines to direct
199		  their output to the USART1 port on SAMV7 based
200		  machines.
201
202	config DEBUG_AT91_SAMA7G5_FLEXCOM3
203		bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3"
204		select DEBUG_AT91_UART
205		depends on SOC_SAMA7G5
206		help
207		  Say Y here if you want kernel low-level debugging support
208		  on the FLEXCOM3 port of SAMA7G5.
209
210	config DEBUG_AT91_LAN966_FLEXCOM
211		bool "Kernel low-level debugging on LAN966 FLEXCOM USART"
212		select DEBUG_AT91_UART
213		depends on SOC_LAN966
214		help
215		Say Y here if you want kernel low-level debugging support
216		on the FLEXCOM port of LAN966.
217
218		DEBUG_UART_PHYS | DEBUG_UART_VIRT
219
220		0xe0040200      | 0xfd040200     | FLEXCOM0
221		0xe0044200      | 0xfd044200     | FLEXCOM1
222		0xe0060200      | 0xfd060200     | FLEXCOM2
223		0xe0064200      | 0xfd064200     | FLEXCOM3
224		0xe0070200      | 0xfd070200     | FLEXCOM4
225
226		By default, enabling FLEXCOM3 port. Based on requirement, use
227		DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above
228		table.
229
230	config DEBUG_BCM2835
231		bool "Kernel low-level debugging on BCM2835 PL011 UART"
232		depends on ARCH_BCM2835 && ARCH_MULTI_V6
233		select DEBUG_UART_PL01X
234
235	config DEBUG_BCM2836
236		bool "Kernel low-level debugging on BCM2836 PL011 UART"
237		depends on ARCH_BCM2835 && ARCH_MULTI_V7
238		select DEBUG_UART_PL01X
239
240	config DEBUG_BCM_5301X
241		bool "Kernel low-level debugging on BCM5301X/NSP UART1"
242		depends on ARCH_BCM_5301X || ARCH_BCM_NSP
243		select DEBUG_UART_8250
244
245	config DEBUG_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
1400endchoice
1401
1402config DEBUG_AT91_UART
1403	bool
1404	depends on ARCH_AT91
1405
1406config DEBUG_EXYNOS_UART
1407	bool
1408
1409config DEBUG_S3C64XX_UART
1410	bool
1411
1412config DEBUG_S5PV210_UART
1413	bool
1414
1415config 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
1424config DEBUG_OMAP2PLUS_UART
1425	bool
1426	depends on ARCH_OMAP2PLUS
1427
1428config 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
1448config 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
1457config DEBUG_TEGRA_UART
1458	bool
1459	depends on ARCH_TEGRA
1460
1461config DEBUG_STM32_UART
1462	bool
1463	depends on ARCH_STM32
1464
1465config 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
1476config 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
1535config DEBUG_UART_PL01X
1536	bool
1537
1538# Compatibility options for 8250
1539config DEBUG_UART_8250
1540	def_bool ARCH_IXP4XX || ARCH_RPC
1541
1542config 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
1673config 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
1774config 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
1782config 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
1793config 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
1801config 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
1812config UNCOMPRESS_INCLUDE
1813	string
1814	default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
1815	default "debug/uncompress.h"
1816
1817config 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
1825config 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
1831config 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
1840source "drivers/hwtracing/coresight/Kconfig"
1841