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