Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/arch/arm/Kconfig.debug

  1 menu "Kernel hacking"
  2 
  3 source "lib/Kconfig.debug"
  4 
  5 config ARM_PTDUMP
  6         bool "Export kernel pagetable layout to userspace via debugfs"
  7         depends on DEBUG_KERNEL
  8         depends on MMU
  9         select DEBUG_FS
 10         ---help---
 11           Say Y here if you want to show the kernel pagetable layout in a
 12           debugfs file. This information is only useful for kernel developers
 13           who are working in architecture specific areas of the kernel.
 14           It is probably not a good idea to enable this feature in a production
 15           kernel.
 16           If in doubt, say "N"
 17 
 18 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
 19 # If you know what you are doing and are willing to live without stack
 20 # traces, you can get a slightly smaller kernel by setting this option to
 21 # n, but then RMK will have to kill you ;).
 22 config FRAME_POINTER
 23         bool
 24         depends on !THUMB2_KERNEL
 25         default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
 26         help
 27           If you say N here, the resulting kernel will be slightly smaller and
 28           faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
 29           when a problem occurs with the kernel, the information that is
 30           reported is severely limited.
 31 
 32 config ARM_UNWIND
 33         bool "Enable stack unwinding support (EXPERIMENTAL)"
 34         depends on AEABI
 35         default y
 36         help
 37           This option enables stack unwinding support in the kernel
 38           using the information automatically generated by the
 39           compiler. The resulting kernel image is slightly bigger but
 40           the performance is not affected. Currently, this feature
 41           only works with EABI compilers. If unsure say Y.
 42 
 43 config OLD_MCOUNT
 44         bool
 45         depends on FUNCTION_TRACER && FRAME_POINTER
 46         default y
 47 
 48 config DEBUG_USER
 49         bool "Verbose user fault messages"
 50         help
 51           When a user program crashes due to an exception, the kernel can
 52           print a brief message explaining what the problem was. This is
 53           sometimes helpful for debugging but serves no purpose on a
 54           production system. Most people should say N here.
 55 
 56           In addition, you need to pass user_debug=N on the kernel command
 57           line to enable this feature.  N consists of the sum of:
 58 
 59               1 - undefined instruction events
 60               2 - system calls
 61               4 - invalid data aborts
 62               8 - SIGSEGV faults
 63              16 - SIGBUS faults
 64 
 65 # These options are only for real kernel hackers who want to get their hands dirty.
 66 config DEBUG_LL
 67         bool "Kernel low-level debugging functions (read help!)"
 68         depends on DEBUG_KERNEL
 69         help
 70           Say Y here to include definitions of printascii, printch, printhex
 71           in the kernel.  This is helpful if you are debugging code that
 72           executes before the console is initialized.
 73 
 74           Note that selecting this option will limit the kernel to a single
 75           UART definition, as specified below. Attempting to boot the kernel
 76           image on a different platform *will not work*, so this option should
 77           not be enabled for kernels that are intended to be portable.
 78 
 79 choice
 80         prompt "Kernel low-level debugging port"
 81         depends on DEBUG_LL
 82 
 83         config DEBUG_ALPINE_UART0
 84                 bool "Kernel low-level debugging messages via Alpine UART0"
 85                 depends on ARCH_ALPINE
 86                 select DEBUG_UART_8250
 87                 help
 88                   Say Y here if you want kernel low-level debugging support
 89                   on Alpine based platforms.
 90 
 91         config DEBUG_ASM9260_UART
 92                 bool "Kernel low-level debugging via asm9260 UART"
 93                 depends on MACH_ASM9260
 94                 help
 95                   Say Y here if you want the debug print routines to direct
 96                   their output to an UART or USART port on asm9260 based
 97                   machines.
 98 
 99                     DEBUG_UART_PHYS | DEBUG_UART_VIRT
100 
101                     0x80000000      | 0xf0000000     | UART0
102                     0x80004000      | 0xf0004000     | UART1
103                     0x80008000      | 0xf0008000     | UART2
104                     0x8000c000      | 0xf000c000     | UART3
105                     0x80010000      | 0xf0010000     | UART4
106                     0x80014000      | 0xf0014000     | UART5
107                     0x80018000      | 0xf0018000     | UART6
108                     0x8001c000      | 0xf001c000     | UART7
109                     0x80020000      | 0xf0020000     | UART8
110                     0x80024000      | 0xf0024000     | UART9
111 
112         config DEBUG_AT91_RM9200_DBGU
113                 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
114                 select DEBUG_AT91_UART
115                 depends on SOC_AT91RM9200 || SOC_AT91SAM9
116                 help
117                   Say Y here if you want kernel low-level debugging support
118                   on the DBGU port of:
119                     at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
120                     at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
121 
122         config DEBUG_AT91_SAM9263_DBGU
123                 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
124                 select DEBUG_AT91_UART
125                 depends on SOC_AT91SAM9 || SOC_SAMA5D3
126                 help
127                   Say Y here if you want kernel low-level debugging support
128                   on the DBGU port of:
129                     at91sam9263, at91sam9g45, at91sam9m10,
130                     sama5d3
131 
132         config DEBUG_AT91_SAMA5D2_UART1
133                 bool "Kernel low-level debugging on SAMA5D2 UART1"
134                 select DEBUG_AT91_UART
135                 depends on SOC_SAMA5D2
136                 help
137                   Say Y here if you want kernel low-level debugging support
138                   on the UART1 port of sama5d2.
139 
140         config DEBUG_AT91_SAMA5D4_USART3
141                 bool "Kernel low-level debugging on SAMA5D4 USART3"
142                 select DEBUG_AT91_UART
143                 depends on SOC_SAMA5D4
144                 help
145                   Say Y here if you want kernel low-level debugging support
146                   on the USART3 port of sama5d4.
147 
148         config DEBUG_BCM2835
149                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
150                 depends on ARCH_BCM2835 && ARCH_MULTI_V6
151                 select DEBUG_UART_PL01X
152 
153         config DEBUG_BCM2836
154                 bool "Kernel low-level debugging on BCM2836 PL011 UART"
155                 depends on ARCH_BCM2835 && ARCH_MULTI_V7
156                 select DEBUG_UART_PL01X
157 
158         config DEBUG_BCM_5301X
159                 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
160                 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
161                 select DEBUG_UART_8250
162 
163         config DEBUG_BCM_KONA_UART
164                 bool "Kernel low-level debugging messages via BCM KONA UART"
165                 depends on ARCH_BCM_MOBILE
166                 select DEBUG_UART_8250
167                 help
168                   Say Y here if you want kernel low-level debugging support
169                   on Broadcom SoC platforms.
170                   This low level debug works for Broadcom
171                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
172                   bcm11351, etc...)
173 
174         config DEBUG_BCM63XX_UART
175                 bool "Kernel low-level debugging on BCM63XX UART"
176                 depends on ARCH_BCM_63XX
177 
178         config DEBUG_BERLIN_UART
179                 bool "Marvell Berlin SoC Debug UART"
180                 depends on ARCH_BERLIN
181                 select DEBUG_UART_8250
182                 help
183                   Say Y here if you want kernel low-level debugging support
184                   on Marvell Berlin SoC based platforms.
185 
186         config DEBUG_BRCMSTB_UART
187                 bool "Use BRCMSTB UART for low-level debug"
188                 depends on ARCH_BRCMSTB
189                 help
190                   Say Y here if you want the debug print routines to direct
191                   their output to the first serial port on these devices. The
192                   UART physical and virtual address is automatically provided
193                   based on the chip identification register value.
194 
195                   If you have a Broadcom STB chip and would like early print
196                   messages to appear over the UART, select this option.
197 
198         config DEBUG_CLPS711X_UART1
199                 bool "Kernel low-level debugging messages via UART1"
200                 depends on ARCH_CLPS711X
201                 help
202                   Say Y here if you want the debug print routines to direct
203                   their output to the first serial port on these devices.
204 
205         config DEBUG_CLPS711X_UART2
206                 bool "Kernel low-level debugging messages via UART2"
207                 depends on ARCH_CLPS711X
208                 help
209                   Say Y here if you want the debug print routines to direct
210                   their output to the second serial port on these devices.
211 
212         config DEBUG_CNS3XXX
213                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
214                 depends on ARCH_CNS3XXX
215                 select DEBUG_UART_8250
216                 help
217                   Say Y here if you want the debug print routines to direct
218                   their output to the CNS3xxx UART0.
219 
220         config DEBUG_DAVINCI_DA8XX_UART1
221                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
222                 depends on ARCH_DAVINCI_DA8XX
223                 select DEBUG_UART_8250
224                 help
225                   Say Y here if you want the debug print routines to direct
226                   their output to UART1 serial port on DaVinci DA8XX devices.
227 
228         config DEBUG_DAVINCI_DA8XX_UART2
229                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
230                 depends on ARCH_DAVINCI_DA8XX
231                 select DEBUG_UART_8250
232                 help
233                   Say Y here if you want the debug print routines to direct
234                   their output to UART2 serial port on DaVinci DA8XX devices.
235 
236         config DEBUG_DAVINCI_DMx_UART0
237                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
238                 depends on ARCH_DAVINCI_DMx
239                 select DEBUG_UART_8250
240                 help
241                   Say Y here if you want the debug print routines to direct
242                   their output to UART0 serial port on DaVinci DMx devices.
243 
244         config DEBUG_DC21285_PORT
245                 bool "Kernel low-level debugging messages via footbridge serial port"
246                 depends on FOOTBRIDGE
247                 help
248                   Say Y here if you want the debug print routines to direct
249                   their output to the serial port in the DC21285 (Footbridge).
250 
251         config DEBUG_DIGICOLOR_UA0
252                 bool "Kernel low-level debugging messages via Digicolor UA0"
253                 depends on ARCH_DIGICOLOR
254                 help
255                   Say Y here if you want the debug print routines to direct
256                   their output to the UA0 serial port in the CX92755.
257 
258         config DEBUG_EP93XX
259                 bool "Kernel low-level debugging messages via ep93xx UART"
260                 depends on ARCH_EP93XX
261                 select DEBUG_UART_PL01X
262                 help
263                   Say Y here if you want kernel low-level debugging support
264                   on Cirrus Logic EP93xx based platforms.
265 
266         config DEBUG_FOOTBRIDGE_COM1
267                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
268                 depends on FOOTBRIDGE
269                 select DEBUG_UART_8250
270                 help
271                   Say Y here if you want the debug print routines to direct
272                   their output to the 8250 at PCI COM1.
273 
274         config DEBUG_GEMINI
275                 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
276                 depends on ARCH_GEMINI
277                 select DEBUG_UART_8250
278                 help
279                   Say Y here if you want kernel low-level debugging support
280                   on Cortina Gemini based platforms.
281 
282         config DEBUG_HI3620_UART
283                 bool "Hisilicon HI3620 Debug UART"
284                 depends on ARCH_HI3xxx
285                 select DEBUG_UART_PL01X
286                 help
287                   Say Y here if you want kernel low-level debugging support
288                   on HI3620 UART.
289 
290         config DEBUG_HIGHBANK_UART
291                 bool "Kernel low-level debugging messages via Highbank UART"
292                 depends on ARCH_HIGHBANK
293                 select DEBUG_UART_PL01X
294                 help
295                   Say Y here if you want the debug print routines to direct
296                   their output to the UART on Highbank based devices.
297 
298         config DEBUG_HIP01_UART
299                 bool "Hisilicon Hip01 Debug UART"
300                 depends on ARCH_HIP01
301                 select DEBUG_UART_8250
302                 help
303                   Say Y here if you want kernel low-level debugging support
304                   on HIP01 UART.
305 
306         config DEBUG_HIP04_UART
307                 bool "Hisilicon HiP04 Debug UART"
308                 depends on ARCH_HIP04
309                 select DEBUG_UART_8250
310                 help
311                   Say Y here if you want kernel low-level debugging support
312                   on HIP04 UART.
313 
314         config DEBUG_HIX5HD2_UART
315                 bool "Hisilicon Hix5hd2 Debug UART"
316                 depends on ARCH_HIX5HD2
317                 select DEBUG_UART_PL01X
318                 help
319                   Say Y here if you want kernel low-level debugging support
320                   on Hix5hd2 UART.
321 
322         config DEBUG_IMX1_UART
323                 bool "i.MX1 Debug UART"
324                 depends on SOC_IMX1
325                 help
326                   Say Y here if you want kernel low-level debugging support
327                   on i.MX1.
328 
329         config DEBUG_IMX23_UART
330                 bool "i.MX23 Debug UART"
331                 depends on SOC_IMX23
332                 select DEBUG_UART_PL01X
333                 help
334                   Say Y here if you want kernel low-level debugging support
335                   on i.MX23.
336 
337         config DEBUG_IMX25_UART
338                 bool "i.MX25 Debug UART"
339                 depends on SOC_IMX25
340                 help
341                   Say Y here if you want kernel low-level debugging support
342                   on i.MX25.
343 
344         config DEBUG_IMX21_IMX27_UART
345                 bool "i.MX21 and i.MX27 Debug UART"
346                 depends on SOC_IMX21 || SOC_IMX27
347                 help
348                   Say Y here if you want kernel low-level debugging support
349                   on i.MX21 or i.MX27.
350 
351         config DEBUG_IMX28_UART
352                 bool "i.MX28 Debug UART"
353                 depends on SOC_IMX28
354                 select DEBUG_UART_PL01X
355                 help
356                   Say Y here if you want kernel low-level debugging support
357                   on i.MX28.
358 
359         config DEBUG_IMX31_UART
360                 bool "i.MX31 Debug UART"
361                 depends on SOC_IMX31
362                 help
363                   Say Y here if you want kernel low-level debugging support
364                   on i.MX31.
365 
366         config DEBUG_IMX35_UART
367                 bool "i.MX35 Debug UART"
368                 depends on SOC_IMX35
369                 help
370                   Say Y here if you want kernel low-level debugging support
371                   on i.MX35.
372 
373         config DEBUG_IMX50_UART
374                 bool "i.MX50 Debug UART"
375                 depends on SOC_IMX50
376                 help
377                   Say Y here if you want kernel low-level debugging support
378                   on i.MX50.
379 
380         config DEBUG_IMX51_UART
381                 bool "i.MX51 Debug UART"
382                 depends on SOC_IMX51
383                 help
384                   Say Y here if you want kernel low-level debugging support
385                   on i.MX51.
386 
387         config DEBUG_IMX53_UART
388                 bool "i.MX53 Debug UART"
389                 depends on SOC_IMX53
390                 help
391                   Say Y here if you want kernel low-level debugging support
392                   on i.MX53.
393 
394         config DEBUG_IMX6Q_UART
395                 bool "i.MX6Q/DL Debug UART"
396                 depends on SOC_IMX6Q
397                 help
398                   Say Y here if you want kernel low-level debugging support
399                   on i.MX6Q/DL.
400 
401         config DEBUG_IMX6SL_UART
402                 bool "i.MX6SL Debug UART"
403                 depends on SOC_IMX6SL
404                 help
405                   Say Y here if you want kernel low-level debugging support
406                   on i.MX6SL.
407 
408         config DEBUG_IMX6SX_UART
409                 bool "i.MX6SX Debug UART"
410                 depends on SOC_IMX6SX
411                 help
412                   Say Y here if you want kernel low-level debugging support
413                   on i.MX6SX.
414 
415         config DEBUG_IMX6UL_UART
416                 bool "i.MX6UL Debug UART"
417                 depends on SOC_IMX6UL
418                 help
419                   Say Y here if you want kernel low-level debugging support
420                   on i.MX6UL.
421 
422         config DEBUG_IMX7D_UART
423                 bool "i.MX7D Debug UART"
424                 depends on SOC_IMX7D
425                 help
426                   Say Y here if you want kernel low-level debugging support
427                   on i.MX7D.
428 
429         config DEBUG_INTEGRATOR
430                 bool "Kernel low-level debugging messages via ARM Integrator UART"
431                 depends on ARCH_INTEGRATOR
432                 select DEBUG_UART_PL01X
433                 help
434                   Say Y here if you want kernel low-level debugging support
435                   on ARM Integrator platforms.
436 
437         config DEBUG_KEYSTONE_UART0
438                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
439                 depends on ARCH_KEYSTONE
440                 select DEBUG_UART_8250
441                 help
442                   Say Y here if you want the debug print routines to direct
443                   their output to UART0 serial port on KEYSTONE2 devices.
444 
445         config DEBUG_KEYSTONE_UART1
446                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
447                 depends on ARCH_KEYSTONE
448                 select DEBUG_UART_8250
449                 help
450                   Say Y here if you want the debug print routines to direct
451                   their output to UART1 serial port on KEYSTONE2 devices.
452 
453         config DEBUG_KS8695_UART
454                 bool "KS8695 Debug UART"
455                 depends on ARCH_KS8695
456                 help
457                   Say Y here if you want kernel low-level debugging support
458                   on KS8695.
459 
460         config DEBUG_LPC18XX_UART0
461                 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
462                 depends on ARCH_LPC18XX
463                 select DEBUG_UART_8250
464                 help
465                   Say Y here if you want kernel low-level debugging support
466                   on NXP LPC18xx/43xx UART0.
467 
468         config DEBUG_LPC32XX
469                 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
470                 depends on ARCH_LPC32XX
471                 select DEBUG_UART_8250
472                 help
473                   Say Y here if you want kernel low-level debugging support
474                   on NXP LPC32xx based platforms.
475 
476         config DEBUG_MESON_UARTAO
477                 bool "Kernel low-level debugging via Meson6 UARTAO"
478                 depends on ARCH_MESON
479                 help
480                   Say Y here if you want kernel low-lever debugging support
481                   on Amlogic Meson6 based platforms on the UARTAO.
482 
483         config DEBUG_MMP_UART2
484                 bool "Kernel low-level debugging message via MMP UART2"
485                 depends on ARCH_MMP
486                 select DEBUG_UART_8250
487                 help
488                   Say Y here if you want kernel low-level debugging support
489                   on MMP UART2.
490 
491         config DEBUG_MMP_UART3
492                 bool "Kernel low-level debugging message via MMP UART3"
493                 depends on ARCH_MMP
494                 select DEBUG_UART_8250
495                 help
496                   Say Y here if you want kernel low-level debugging support
497                   on MMP UART3.
498 
499         config DEBUG_MVEBU_UART0
500                 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
501                 depends on ARCH_MVEBU
502                 depends on ARCH_MVEBU && CPU_V7
503                 select DEBUG_UART_8250
504                 help
505                   Say Y here if you want kernel low-level debugging support
506                   on MVEBU based platforms on UART0.
507 
508                   This option should be used with the old bootloaders
509                   that left the internal registers mapped at
510                   0xd0000000. As of today, this is the case on
511                   platforms such as the Globalscale Mirabox or the
512                   Plathome OpenBlocks AX3, when using the original
513                   bootloader.
514 
515                   This option will not work on older Marvell platforms
516                   (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
517                   the "new bootloader" variant.
518 
519                   If the wrong DEBUG_MVEBU_UART* option is selected,
520                   when u-boot hands over to the kernel, the system
521                   silently crashes, with no serial output at all.
522 
523         config DEBUG_MVEBU_UART0_ALTERNATE
524                 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
525                 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
526                 select DEBUG_UART_8250
527                 help
528                   Say Y here if you want kernel low-level debugging support
529                   on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
530                   Kirkwood, Dove, MV78xx0, Orion5x).
531 
532 
533                   This option should be used with the new bootloaders
534                   that remap the internal registers at 0xf1000000.
535 
536                   If the wrong DEBUG_MVEBU_UART* option is selected,
537                   when u-boot hands over to the kernel, the system
538                   silently crashes, with no serial output at all.
539 
540         config DEBUG_MVEBU_UART1_ALTERNATE
541                 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
542                 depends on ARCH_MVEBU
543                 select DEBUG_UART_8250
544                 help
545                   Say Y here if you want kernel low-level debugging support
546                   on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
547                   Kirkwood, Dove, MV78xx0, Orion5x).
548 
549                   This option should be used with the new bootloaders
550                   that remap the internal registers at 0xf1000000.
551                   All of the older (pre Armada XP/370) platforms also use
552                   this address, regardless of the boot loader version.
553 
554                   If the wrong DEBUG_MVEBU_UART* option is selected,
555                   when u-boot hands over to the kernel, the system
556                   silently crashes, with no serial output at all.
557 
558         config DEBUG_MT6589_UART0
559                 bool "Mediatek mt6589 UART0"
560                 depends on ARCH_MEDIATEK
561                 select DEBUG_UART_8250
562                 help
563                   Say Y here if you want kernel low-level debugging support
564                   for Mediatek mt6589 based platforms on UART0.
565 
566         config DEBUG_MT8127_UART0
567                 bool "Mediatek mt8127/mt6592 UART0"
568                 depends on ARCH_MEDIATEK
569                 select DEBUG_UART_8250
570                 help
571                   Say Y here if you want kernel low-level debugging support
572                   for Mediatek mt8127 based platforms on UART0.
573 
574         config DEBUG_MT8135_UART3
575                 bool "Mediatek mt8135 UART3"
576                 depends on ARCH_MEDIATEK
577                 select DEBUG_UART_8250
578                 help
579                   Say Y here if you want kernel low-level debugging support
580                   for Mediatek mt8135 based platforms on UART3.
581 
582         config DEBUG_NETX_UART
583                 bool "Kernel low-level debugging messages via NetX UART"
584                 depends on ARCH_NETX
585                 help
586                   Say Y here if you want kernel low-level debugging support
587                   on Hilscher NetX based platforms.
588 
589         config DEBUG_NOMADIK_UART
590                 bool "Kernel low-level debugging messages via NOMADIK UART"
591                 depends on ARCH_NOMADIK
592                 select DEBUG_UART_PL01X
593                 help
594                   Say Y here if you want kernel low-level debugging support
595                   on NOMADIK based platforms.
596 
597         config DEBUG_NSPIRE_CLASSIC_UART
598                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
599                 depends on ARCH_NSPIRE
600                 select DEBUG_UART_8250
601                 help
602                   Say Y here if you want kernel low-level debugging support
603                   on TI-NSPIRE classic models.
604 
605         config DEBUG_NSPIRE_CX_UART
606                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
607                 depends on ARCH_NSPIRE
608                 select DEBUG_UART_PL01X
609                 help
610                   Say Y here if you want kernel low-level debugging support
611                   on TI-NSPIRE CX models.
612 
613         config DEBUG_OMAP1UART1
614                 bool "Kernel low-level debugging via OMAP1 UART1"
615                 depends on ARCH_OMAP1
616                 select DEBUG_UART_8250
617                 help
618                   Say Y here if you want kernel low-level debugging support
619                   on OMAP1 based platforms (except OMAP730) on the UART1.
620 
621         config DEBUG_OMAP1UART2
622                 bool "Kernel low-level debugging via OMAP1 UART2"
623                 depends on ARCH_OMAP1
624                 select DEBUG_UART_8250
625                 help
626                   Say Y here if you want kernel low-level debugging support
627                   on OMAP1 based platforms (except OMAP730) on the UART2.
628 
629         config DEBUG_OMAP1UART3
630                 bool "Kernel low-level debugging via OMAP1 UART3"
631                 depends on ARCH_OMAP1
632                 select DEBUG_UART_8250
633                 help
634                   Say Y here if you want kernel low-level debugging support
635                   on OMAP1 based platforms (except OMAP730) on the UART3.
636 
637         config DEBUG_OMAP2UART1
638                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
639                 depends on ARCH_OMAP2PLUS
640                 select DEBUG_OMAP2PLUS_UART
641                 help
642                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
643                   omap3 torpedo and 3530 lv som.
644 
645         config DEBUG_OMAP2UART2
646                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
647                 depends on ARCH_OMAP2PLUS
648                 select DEBUG_OMAP2PLUS_UART
649 
650         config DEBUG_OMAP2UART3
651                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
652                 depends on ARCH_OMAP2PLUS
653                 select DEBUG_OMAP2PLUS_UART
654 
655         config DEBUG_OMAP3UART3
656                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
657                 depends on ARCH_OMAP2PLUS
658                 select DEBUG_OMAP2PLUS_UART
659                 help
660                   This covers at least cm_t3x, beagle, crane, devkit8000,
661                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
662                   and 3517evm.
663 
664         config DEBUG_OMAP4UART3
665                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
666                 depends on ARCH_OMAP2PLUS
667                 select DEBUG_OMAP2PLUS_UART
668 
669         config DEBUG_OMAP3UART4
670                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
671                 depends on ARCH_OMAP2PLUS
672                 select DEBUG_OMAP2PLUS_UART
673 
674         config DEBUG_OMAP4UART4
675                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
676                 depends on ARCH_OMAP2PLUS
677                 select DEBUG_OMAP2PLUS_UART
678 
679         config DEBUG_OMAP7XXUART1
680                 bool "Kernel low-level debugging via OMAP730 UART1"
681                 depends on ARCH_OMAP730
682                 select DEBUG_UART_8250
683                 help
684                   Say Y here if you want kernel low-level debugging support
685                   on OMAP730 based platforms on the UART1.
686 
687         config DEBUG_OMAP7XXUART2
688                 bool "Kernel low-level debugging via OMAP730 UART2"
689                 depends on ARCH_OMAP730
690                 select DEBUG_UART_8250
691                 help
692                   Say Y here if you want kernel low-level debugging support
693                   on OMAP730 based platforms on the UART2.
694 
695         config DEBUG_OMAP7XXUART3
696                 bool "Kernel low-level debugging via OMAP730 UART3"
697                 depends on ARCH_OMAP730
698                 select DEBUG_UART_8250
699                 help
700                   Say Y here if you want kernel low-level debugging support
701                   on OMAP730 based platforms on the UART3.
702 
703         config DEBUG_TI81XXUART1
704                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
705                 depends on ARCH_OMAP2PLUS
706                 select DEBUG_OMAP2PLUS_UART
707 
708         config DEBUG_TI81XXUART2
709                 bool "Kernel low-level debugging messages via TI81XX UART2"
710                 depends on ARCH_OMAP2PLUS
711                 select DEBUG_OMAP2PLUS_UART
712 
713         config DEBUG_TI81XXUART3
714                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
715                 depends on ARCH_OMAP2PLUS
716                 select DEBUG_OMAP2PLUS_UART
717 
718         config DEBUG_AM33XXUART1
719                 bool "Kernel low-level debugging messages via AM33XX UART1"
720                 depends on ARCH_OMAP2PLUS
721                 select DEBUG_OMAP2PLUS_UART
722 
723         config DEBUG_ZOOM_UART
724                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
725                 depends on ARCH_OMAP2PLUS
726                 select DEBUG_OMAP2PLUS_UART
727 
728         config DEBUG_PICOXCELL_UART
729                 depends on ARCH_PICOXCELL
730                 bool "Use PicoXcell UART for low-level debug"
731                 select DEBUG_UART_8250
732                 help
733                   Say Y here if you want kernel low-level debugging support
734                   on PicoXcell based platforms.
735 
736         config DEBUG_PXA_UART1
737                 depends on ARCH_PXA
738                 bool "Use PXA UART1 for low-level debug"
739                 select DEBUG_UART_8250
740                 help
741                   Say Y here if you want kernel low-level debugging support
742                   on PXA UART1.
743 
744         config DEBUG_QCOM_UARTDM
745                 bool "Kernel low-level debugging messages via QCOM UARTDM"
746                 depends on ARCH_QCOM
747                 help
748                   Say Y here if you want the debug print routines to direct
749                   their output to the serial port on Qualcomm devices.
750 
751                   ARCH      DEBUG_UART_PHYS   DEBUG_UART_VIRT
752                   APQ8064   0x16640000        0xf0040000
753                   APQ8084   0xf995e000        0xfa75e000
754                   MSM8X60   0x19c40000        0xf0040000
755                   MSM8960   0x16440000        0xf0040000
756                   MSM8974   0xf991e000        0xfa71e000
757 
758                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
759                   options based on your needs.
760 
761         config DEBUG_REALVIEW_STD_PORT
762                 bool "RealView Default UART"
763                 depends on ARCH_REALVIEW
764                 select DEBUG_UART_PL01X
765                 help
766                   Say Y here if you want the debug print routines to direct
767                   their output to the serial port on RealView EB, PB11MP, PBA8
768                   and PBX platforms.
769 
770         config DEBUG_REALVIEW_PB1176_PORT
771                 bool "RealView PB1176 UART"
772                 depends on MACH_REALVIEW_PB1176
773                 select DEBUG_UART_PL01X
774                 help
775                   Say Y here if you want the debug print routines to direct
776                   their output to the standard serial port on the RealView
777                   PB1176 platform.
778 
779         config DEBUG_RK29_UART0
780                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
781                 depends on ARCH_ROCKCHIP
782                 select DEBUG_UART_8250
783                 help
784                   Say Y here if you want kernel low-level debugging support
785                   on Rockchip based platforms.
786 
787         config DEBUG_RK29_UART1
788                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
789                 depends on ARCH_ROCKCHIP
790                 select DEBUG_UART_8250
791                 help
792                   Say Y here if you want kernel low-level debugging support
793                   on Rockchip based platforms.
794 
795         config DEBUG_RK29_UART2
796                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
797                 depends on ARCH_ROCKCHIP
798                 select DEBUG_UART_8250
799                 help
800                   Say Y here if you want kernel low-level debugging support
801                   on Rockchip based platforms.
802 
803         config DEBUG_RK3X_UART0
804                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
805                 depends on ARCH_ROCKCHIP
806                 select DEBUG_UART_8250
807                 help
808                   Say Y here if you want kernel low-level debugging support
809                   on Rockchip based platforms.
810 
811         config DEBUG_RK3X_UART1
812                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
813                 depends on ARCH_ROCKCHIP
814                 select DEBUG_UART_8250
815                 help
816                   Say Y here if you want kernel low-level debugging support
817                   on Rockchip based platforms.
818 
819         config DEBUG_RK3X_UART2
820                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
821                 depends on ARCH_ROCKCHIP
822                 select DEBUG_UART_8250
823                 help
824                   Say Y here if you want kernel low-level debugging support
825                   on Rockchip based platforms.
826 
827         config DEBUG_RK3X_UART3
828                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
829                 depends on ARCH_ROCKCHIP
830                 select DEBUG_UART_8250
831                 help
832                   Say Y here if you want kernel low-level debugging support
833                   on Rockchip based platforms.
834 
835         config DEBUG_RK32_UART2
836                 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
837                 depends on ARCH_ROCKCHIP
838                 select DEBUG_UART_8250
839                 help
840                   Say Y here if you want kernel low-level debugging support
841                   on Rockchip RK32xx based platforms.
842 
843         config DEBUG_R7S72100_SCIF2
844                 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
845                 depends on ARCH_R7S72100
846                 help
847                   Say Y here if you want kernel low-level debugging support
848                   via SCIF2 on Renesas RZ/A1H (R7S72100).
849 
850         config DEBUG_RCAR_GEN1_SCIF0
851                 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
852                 depends on ARCH_R8A7778
853                 help
854                   Say Y here if you want kernel low-level debugging support
855                   via SCIF0 on Renesas R-Car M1A (R8A7778).
856 
857         config DEBUG_RCAR_GEN1_SCIF2
858                 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
859                 depends on ARCH_R8A7779
860                 help
861                   Say Y here if you want kernel low-level debugging support
862                   via SCIF2 on Renesas R-Car H1 (R8A7779).
863 
864         config DEBUG_RCAR_GEN2_SCIF0
865                 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7792/R8A7793"
866                 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
867                 help
868                   Say Y here if you want kernel low-level debugging support
869                   via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), V2H
870                   (R8A7792), or M2-N (R8A7793).
871 
872         config DEBUG_RCAR_GEN2_SCIF2
873                 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
874                 depends on ARCH_R8A7794
875                 help
876                   Say Y here if you want kernel low-level debugging support
877                   via SCIF2 on Renesas R-Car E2 (R8A7794).
878 
879         config DEBUG_RMOBILE_SCIFA0
880                 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
881                 depends on ARCH_R8A73A4
882                 help
883                   Say Y here if you want kernel low-level debugging support
884                   via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
885 
886         config DEBUG_RMOBILE_SCIFA1
887                 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
888                 depends on ARCH_R8A7740
889                 help
890                   Say Y here if you want kernel low-level debugging support
891                   via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
892 
893         config DEBUG_RMOBILE_SCIFA4
894                 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
895                 depends on ARCH_SH73A0
896                 help
897                   Say Y here if you want kernel low-level debugging support
898                   via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
899 
900         config DEBUG_S3C_UART0
901                 depends on PLAT_SAMSUNG
902                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
903                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
904                 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
905                 select DEBUG_S5PV210_UART if ARCH_S5PV210
906                 bool "Use Samsung S3C UART 0 for low-level debug"
907                 help
908                   Say Y here if you want the debug print routines to direct
909                   their output to UART 0. The port must have been initialised
910                   by the boot-loader before use.
911 
912         config DEBUG_S3C_UART1
913                 depends on PLAT_SAMSUNG
914                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
915                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
916                 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
917                 select DEBUG_S5PV210_UART if ARCH_S5PV210
918                 bool "Use Samsung S3C UART 1 for low-level debug"
919                 help
920                   Say Y here if you want the debug print routines to direct
921                   their output to UART 1. The port must have been initialised
922                   by the boot-loader before use.
923 
924         config DEBUG_S3C_UART2
925                 depends on PLAT_SAMSUNG
926                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
927                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
928                 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
929                 select DEBUG_S5PV210_UART if ARCH_S5PV210
930                 bool "Use Samsung S3C UART 2 for low-level debug"
931                 help
932                   Say Y here if you want the debug print routines to direct
933                   their output to UART 2. The port must have been initialised
934                   by the boot-loader before use.
935 
936         config DEBUG_S3C_UART3
937                 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
938                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
939                 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
940                 select DEBUG_S5PV210_UART if ARCH_S5PV210
941                 bool "Use Samsung S3C UART 3 for low-level debug"
942                 help
943                   Say Y here if you want the debug print routines to direct
944                   their output to UART 3. The port must have been initialised
945                   by the boot-loader before use.
946 
947         config DEBUG_S3C2410_UART0
948                 depends on ARCH_S3C24XX
949                 select DEBUG_S3C2410_UART
950                 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
951                 help
952                   Say Y here if you want the debug print routines to direct
953                   their output to UART 0. The port must have been initialised
954                   by the boot-loader before use.
955 
956         config DEBUG_S3C2410_UART1
957                 depends on ARCH_S3C24XX
958                 select DEBUG_S3C2410_UART
959                 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
960                 help
961                   Say Y here if you want the debug print routines to direct
962                   their output to UART 1. The port must have been initialised
963                   by the boot-loader before use.
964 
965         config DEBUG_S3C2410_UART2
966                 depends on ARCH_S3C24XX
967                 select DEBUG_S3C2410_UART
968                 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
969                 help
970                   Say Y here if you want the debug print routines to direct
971                   their output to UART 2. The port must have been initialised
972                   by the boot-loader before use.
973 
974         config DEBUG_SA1100
975                 depends on ARCH_SA1100
976                 bool "Use SA1100 UARTs for low-level debug"
977                 help
978                   Say Y here if you want kernel low-level debugging support
979                   on SA-11x0 UART ports. The kernel will check for the first
980                   enabled UART in a sequence 3-1-2.
981 
982         config DEBUG_SOCFPGA_UART0
983                 depends on ARCH_SOCFPGA
984                 bool "Use SOCFPGA UART0 for low-level debug"
985                 select DEBUG_UART_8250
986                 help
987                   Say Y here if you want kernel low-level debugging support
988                   on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
989 
990         config DEBUG_SOCFPGA_UART1
991                 depends on ARCH_SOCFPGA
992                 bool "Use SOCFPGA UART1 for low-level debug"
993                 select DEBUG_UART_8250
994                 help
995                   Say Y here if you want kernel low-level debugging support
996                   on SOCFPGA(Arria 10) based platforms.
997 
998 
999         config DEBUG_SUN9I_UART0
1000                 bool "Kernel low-level debugging messages via sun9i UART0"
1001                 depends on MACH_SUN9I
1002                 select DEBUG_UART_8250
1003                 help
1004                   Say Y here if you want kernel low-level debugging support
1005                   on Allwinner A80 based platforms on the UART0.
1006 
1007         config DEBUG_SUNXI_UART0
1008                 bool "Kernel low-level debugging messages via sunXi UART0"
1009                 depends on ARCH_SUNXI
1010                 select DEBUG_UART_8250
1011                 help
1012                   Say Y here if you want kernel low-level debugging support
1013                   on Allwinner A1X based platforms on the UART0.
1014 
1015         config DEBUG_SUNXI_UART1
1016                 bool "Kernel low-level debugging messages via sunXi UART1"
1017                 depends on ARCH_SUNXI
1018                 select DEBUG_UART_8250
1019                 help
1020                   Say Y here if you want kernel low-level debugging support
1021                   on Allwinner A1X based platforms on the UART1.
1022 
1023         config DEBUG_SUNXI_R_UART
1024                 bool "Kernel low-level debugging messages via sunXi R_UART"
1025                 depends on MACH_SUN6I || MACH_SUN8I
1026                 select DEBUG_UART_8250
1027                 help
1028                   Say Y here if you want kernel low-level debugging support
1029                   on Allwinner A31/A23 based platforms on the R_UART.
1030 
1031         config DEBUG_SIRFPRIMA2_UART1
1032                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1033                 depends on ARCH_PRIMA2
1034                 select DEBUG_SIRFSOC_UART
1035                 help
1036                   Say Y here if you want the debug print routines to direct
1037                   their output to the uart1 port on SiRFprimaII devices.
1038 
1039         config DEBUG_SIRFATLAS7_UART0
1040                 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1041                 depends on ARCH_ATLAS7
1042                 select DEBUG_SIRFSOC_UART
1043                 help
1044                   Say Y here if you want the debug print routines to direct
1045                   their output to the uart0 port on SiRFATLAS7 devices.The uart0
1046                   is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1047                   debug port can be very useful.
1048 
1049         config DEBUG_SIRFATLAS7_UART1
1050                 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1051                 depends on ARCH_ATLAS7
1052                 select DEBUG_SIRFSOC_UART
1053                 help
1054                   Say Y here if you want the debug print routines to direct
1055                   their output to the uart1 port on SiRFATLAS7 devices.
1056 
1057         config DEBUG_SPEAR3XX
1058                 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1059                 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1060                 select DEBUG_UART_PL01X
1061                 help
1062                   Say Y here if you want kernel low-level debugging support
1063                   on ST SPEAr based platforms.
1064 
1065         config DEBUG_SPEAR13XX
1066                 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1067                 depends on ARCH_SPEAR13XX
1068                 select DEBUG_UART_PL01X
1069                 help
1070                   Say Y here if you want kernel low-level debugging support
1071                   on ST SPEAr13xx based platforms.
1072 
1073         config STIH41X_DEBUG_ASC2
1074                 bool "Use StiH415/416 ASC2 UART for low-level debug"
1075                 depends on ARCH_STI
1076                 select DEBUG_STI_UART
1077                 help
1078                   Say Y here if you want kernel low-level debugging support
1079                   on STiH415/416 based platforms like b2000, which has
1080                   default UART wired up to ASC2.
1081 
1082                   If unsure, say N.
1083 
1084         config STIH41X_DEBUG_SBC_ASC1
1085                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1086                 depends on ARCH_STI
1087                 select DEBUG_STI_UART
1088                 help
1089                   Say Y here if you want kernel low-level debugging support
1090                   on STiH415/416 based platforms like b2020. which has
1091                   default UART wired up to SBC ASC1.
1092 
1093                   If unsure, say N.
1094 
1095         config TEGRA_DEBUG_UART_AUTO_ODMDATA
1096                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1097                 depends on ARCH_TEGRA
1098                 select DEBUG_TEGRA_UART
1099                 help
1100                   Automatically determines which UART to use for low-level
1101                   debug based on the ODMDATA value. This value is part of
1102                   the BCT, and is written to the boot memory device using
1103                   nvflash, or other flashing tool.  When bits 19:18 are 3,
1104                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
1105                   are UART A/B/C/D/E.
1106 
1107         config TEGRA_DEBUG_UARTA
1108                 bool "Kernel low-level debugging messages via Tegra UART A"
1109                 depends on ARCH_TEGRA
1110                 select DEBUG_TEGRA_UART
1111                 help
1112                   Say Y here if you want kernel low-level debugging support
1113                   on Tegra based platforms.
1114 
1115         config TEGRA_DEBUG_UARTB
1116                 bool "Kernel low-level debugging messages via Tegra UART B"
1117                 depends on ARCH_TEGRA
1118                 select DEBUG_TEGRA_UART
1119                 help
1120                   Say Y here if you want kernel low-level debugging support
1121                   on Tegra based platforms.
1122 
1123         config TEGRA_DEBUG_UARTC
1124                 bool "Kernel low-level debugging messages via Tegra UART C"
1125                 depends on ARCH_TEGRA
1126                 select DEBUG_TEGRA_UART
1127                 help
1128                   Say Y here if you want kernel low-level debugging support
1129                   on Tegra based platforms.
1130 
1131         config TEGRA_DEBUG_UARTD
1132                 bool "Kernel low-level debugging messages via Tegra UART D"
1133                 depends on ARCH_TEGRA
1134                 select DEBUG_TEGRA_UART
1135                 help
1136                   Say Y here if you want kernel low-level debugging support
1137                   on Tegra based platforms.
1138 
1139         config TEGRA_DEBUG_UARTE
1140                 bool "Kernel low-level debugging messages via Tegra UART E"
1141                 depends on ARCH_TEGRA
1142                 select DEBUG_TEGRA_UART
1143                 help
1144                   Say Y here if you want kernel low-level debugging support
1145                   on Tegra based platforms.
1146 
1147         config DEBUG_U300_UART
1148                 bool "Kernel low-level debugging messages via U300 UART0"
1149                 depends on ARCH_U300
1150                 select DEBUG_UART_PL01X
1151                 help
1152                   Say Y here if you want the debug print routines to direct
1153                   their output to the uart port on U300 devices.
1154 
1155         config DEBUG_UX500_UART
1156                 depends on ARCH_U8500
1157                 bool "Use Ux500 UART for low-level debug"
1158                 help
1159                   Say Y here if you want kernel low-level debugging support
1160                   on Ux500 based platforms.
1161 
1162         config DEBUG_VERSATILE
1163                 bool "Kernel low-level debugging messages via ARM Versatile UART"
1164                 depends on ARCH_VERSATILE
1165                 select DEBUG_UART_PL01X
1166                 help
1167                   Say Y here if you want kernel low-level debugging support
1168                   on ARM Versatile platforms.
1169 
1170         config DEBUG_VEXPRESS_UART0_DETECT
1171                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1172                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1173                 help
1174                   This option enables a simple heuristic which tries to determine
1175                   the motherboard's memory map variant (original or RS1) and then
1176                   choose the relevant UART0 base address.
1177 
1178                   Note that this will only work with standard A-class core tiles,
1179                   and may fail with non-standard SMM or custom software models.
1180 
1181         config DEBUG_VEXPRESS_UART0_CA9
1182                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1183                 depends on ARCH_VEXPRESS
1184                 select DEBUG_UART_PL01X
1185                 help
1186                   This option selects UART0 at 0x10009000. Except for custom models,
1187                   this applies only to the V2P-CA9 tile.
1188 
1189         config DEBUG_VEXPRESS_UART0_RS1
1190                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1191                 depends on ARCH_VEXPRESS
1192                 select DEBUG_UART_PL01X
1193                 help
1194                   This option selects UART0 at 0x1c090000. This applies to most
1195                   of the tiles using the RS1 memory map, including all new A-class
1196                   core tiles, FPGA-based SMMs and software models.
1197 
1198         config DEBUG_VEXPRESS_UART0_CRX
1199                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1200                 depends on ARCH_VEXPRESS && !MMU
1201                 select DEBUG_UART_PL01X
1202                 help
1203                   This option selects UART0 at 0xb0090000. This is appropriate for
1204                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1205 
1206         config DEBUG_VF_UART
1207                 bool "Vybrid UART"
1208                 depends on SOC_VF610
1209                 help
1210                   Say Y here if you want kernel low-level debugging support
1211                   on Vybrid based platforms.
1212 
1213         config DEBUG_VT8500_UART0
1214                 bool "Use UART0 on VIA/Wondermedia SoCs"
1215                 depends on ARCH_VT8500
1216                 help
1217                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
1218                   devices, including VT8500, WM8505, WM8650 and WM8850.
1219 
1220         config DEBUG_ZTE_ZX
1221                 bool "Use ZTE ZX UART"
1222                 select DEBUG_UART_PL01X
1223                 depends on ARCH_ZX
1224                 help
1225                   Say Y here if you are enabling ZTE ZX296702 SOC and need
1226                   debug uart support.
1227 
1228                   This option is preferred over the platform specific
1229                   options; the platform specific options are deprecated
1230                   and will be soon removed.
1231 
1232         config DEBUG_ZYNQ_UART0
1233                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1234                 depends on ARCH_ZYNQ
1235                 help
1236                   Say Y here if you want the debug print routines to direct
1237                   their output to UART0 on the Zynq platform.
1238 
1239         config DEBUG_ZYNQ_UART1
1240                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1241                 depends on ARCH_ZYNQ
1242                 help
1243                   Say Y here if you want the debug print routines to direct
1244                   their output to UART1 on the Zynq platform.
1245 
1246                   If you have a ZC702 board and want early boot messages to
1247                   appear on the USB serial adaptor, select this option.
1248 
1249         config DEBUG_ICEDCC
1250                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1251                 help
1252                   Say Y here if you want the debug print routines to direct
1253                   their output to the EmbeddedICE macrocell's DCC channel using
1254                   co-processor 14. This is known to work on the ARM9 style ICE
1255                   channel and on the XScale with the PEEDI.
1256 
1257                   Note that the system will appear to hang during boot if there
1258                   is nothing connected to read from the DCC.
1259 
1260         config DEBUG_SEMIHOSTING
1261                 bool "Kernel low-level debug output via semihosting I/O"
1262                 help
1263                   Semihosting enables code running on an ARM target to use
1264                   the I/O facilities on a host debugger/emulator through a
1265                   simple SVC call. The host debugger or emulator must have
1266                   semihosting enabled for the special svc call to be trapped
1267                   otherwise the kernel will crash.
1268 
1269                   This is known to work with OpenOCD, as well as
1270                   ARM's Fast Models, or any other controlling environment
1271                   that implements semihosting.
1272 
1273                   For more details about semihosting, please see
1274                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1275 
1276         config DEBUG_LL_UART_8250
1277                 bool "Kernel low-level debugging via 8250 UART"
1278                 help
1279                   Say Y here if you wish the debug print routes to direct
1280                   their output to an 8250 UART.  You can use this option
1281                   to provide the parameters for the 8250 UART rather than
1282                   selecting one of the platform specific options above if
1283                   you know the parameters for the port.
1284 
1285                   This option is preferred over the platform specific
1286                   options; the platform specific options are deprecated
1287                   and will be soon removed.
1288 
1289         config DEBUG_LL_UART_EFM32
1290                 bool "Kernel low-level debugging via efm32 UART"
1291                 depends on ARCH_EFM32
1292                 help
1293                   Say Y here if you want the debug print routines to direct
1294                   their output to an UART or USART port on efm32 based
1295                   machines. Use the following addresses for DEBUG_UART_PHYS:
1296 
1297                     0x4000c000 | USART0
1298                     0x4000c400 | USART1
1299                     0x4000c800 | USART2
1300                     0x4000e000 | UART0
1301                     0x4000e400 | UART1
1302 
1303         config DEBUG_LL_UART_PL01X
1304                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1305                 help
1306                   Say Y here if you wish the debug print routes to direct
1307                   their output to a PL01x Primecell UART.  You can use
1308                   this option to provide the parameters for the UART
1309                   rather than selecting one of the platform specific
1310                   options above if you know the parameters for the port.
1311 
1312                   This option is preferred over the platform specific
1313                   options; the platform specific options are deprecated
1314                   and will be soon removed.
1315 
1316 endchoice
1317 
1318 config DEBUG_AT91_UART
1319         bool
1320         depends on ARCH_AT91
1321 
1322 config DEBUG_EXYNOS_UART
1323         bool
1324 
1325 config DEBUG_S3C2410_UART
1326         bool
1327         select DEBUG_S3C24XX_UART
1328 
1329 config DEBUG_S3C24XX_UART
1330         bool
1331 
1332 config DEBUG_S3C64XX_UART
1333         bool
1334 
1335 config DEBUG_S5PV210_UART
1336         bool
1337 
1338 config DEBUG_OMAP2PLUS_UART
1339         bool
1340         depends on ARCH_OMAP2PLUS
1341 
1342 config DEBUG_IMX_UART_PORT
1343         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1344                                                 DEBUG_IMX25_UART || \
1345                                                 DEBUG_IMX21_IMX27_UART || \
1346                                                 DEBUG_IMX31_UART || \
1347                                                 DEBUG_IMX35_UART || \
1348                                                 DEBUG_IMX50_UART || \
1349                                                 DEBUG_IMX51_UART || \
1350                                                 DEBUG_IMX53_UART || \
1351                                                 DEBUG_IMX6Q_UART || \
1352                                                 DEBUG_IMX6SL_UART || \
1353                                                 DEBUG_IMX6SX_UART || \
1354                                                 DEBUG_IMX6UL_UART || \
1355                                                 DEBUG_IMX7D_UART
1356         default 1
1357         depends on ARCH_MXC
1358         help
1359           Choose UART port on which kernel low-level debug messages
1360           should be output.
1361 
1362 config DEBUG_VF_UART_PORT
1363         int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1364         default 1
1365         range 0 3
1366         depends on SOC_VF610
1367         help
1368           Choose UART port on which kernel low-level debug messages
1369           should be output.
1370 
1371 config DEBUG_TEGRA_UART
1372         bool
1373         depends on ARCH_TEGRA
1374 
1375 config DEBUG_STI_UART
1376         bool
1377         depends on ARCH_STI
1378 
1379 config DEBUG_SIRFSOC_UART
1380         bool
1381         depends on ARCH_SIRF
1382 
1383 config DEBUG_LL_INCLUDE
1384         string
1385         default "debug/sa1100.S" if DEBUG_SA1100
1386         default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1387         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1388         default "debug/at91.S" if DEBUG_AT91_UART
1389         default "debug/asm9260.S" if DEBUG_ASM9260_UART
1390         default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1391         default "debug/dc21285.S" if DEBUG_DC21285_PORT
1392         default "debug/meson.S" if DEBUG_MESON_UARTAO
1393         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1394         default "debug/exynos.S" if DEBUG_EXYNOS_UART
1395         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1396         default "debug/icedcc.S" if DEBUG_ICEDCC
1397         default "debug/imx.S" if DEBUG_IMX1_UART || \
1398                                  DEBUG_IMX25_UART || \
1399                                  DEBUG_IMX21_IMX27_UART || \
1400                                  DEBUG_IMX31_UART || \
1401                                  DEBUG_IMX35_UART || \
1402                                  DEBUG_IMX50_UART || \
1403                                  DEBUG_IMX51_UART || \
1404                                  DEBUG_IMX53_UART ||\
1405                                  DEBUG_IMX6Q_UART || \
1406                                  DEBUG_IMX6SL_UART || \
1407                                  DEBUG_IMX6SX_UART || \
1408                                  DEBUG_IMX6UL_UART || \
1409                                  DEBUG_IMX7D_UART
1410         default "debug/ks8695.S" if DEBUG_KS8695_UART
1411         default "debug/msm.S" if DEBUG_QCOM_UARTDM
1412         default "debug/netx.S" if DEBUG_NETX_UART
1413         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1414         default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1415         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1416         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1417         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1418         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1419         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1420         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1421         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1422         default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1423         default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1424         default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1425         default "debug/sti.S" if DEBUG_STI_UART
1426         default "debug/tegra.S" if DEBUG_TEGRA_UART
1427         default "debug/ux500.S" if DEBUG_UX500_UART
1428         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1429         default "debug/vf.S" if DEBUG_VF_UART
1430         default "debug/vt8500.S" if DEBUG_VT8500_UART0
1431         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1432         default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1433         default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1434         default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1435         default "mach/debug-macro.S"
1436 
1437 # Compatibility options for PL01x
1438 config DEBUG_UART_PL01X
1439         bool
1440 
1441 # Compatibility options for 8250
1442 config DEBUG_UART_8250
1443         def_bool ARCH_EBSA110 || \
1444                 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1445                 ARCH_RPC
1446 
1447 config DEBUG_UART_PHYS
1448         hex "Physical base address of debug UART"
1449         default 0x00100a00 if DEBUG_NETX_UART
1450         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1451         default 0x01c28000 if DEBUG_SUNXI_UART0
1452         default 0x01c28400 if DEBUG_SUNXI_UART1
1453         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1454         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1455         default 0x01f02800 if DEBUG_SUNXI_R_UART
1456         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1457         default 0x02531000 if DEBUG_KEYSTONE_UART1
1458         default 0x03010fe0 if ARCH_RPC
1459         default 0x07000000 if DEBUG_SUN9I_UART0
1460         default 0x09405000 if DEBUG_ZTE_ZX
1461         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1462                                 DEBUG_VEXPRESS_UART0_CA9
1463         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1464         default 0x10124000 if DEBUG_RK3X_UART0
1465         default 0x10126000 if DEBUG_RK3X_UART1
1466         default 0x101f1000 if DEBUG_VERSATILE
1467         default 0x101fb000 if DEBUG_NOMADIK_UART
1468         default 0x11002000 if DEBUG_MT8127_UART0
1469         default 0x11006000 if DEBUG_MT6589_UART0
1470         default 0x11009000 if DEBUG_MT8135_UART3
1471         default 0x16000000 if DEBUG_INTEGRATOR
1472         default 0x18000300 if DEBUG_BCM_5301X
1473         default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1474         default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1475         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1476         default 0x20001000 if DEBUG_HIP01_UART
1477         default 0x20060000 if DEBUG_RK29_UART0
1478         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1479         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1480         default 0x20201000 if DEBUG_BCM2835
1481         default 0x3f201000 if DEBUG_BCM2836
1482         default 0x3e000000 if DEBUG_BCM_KONA_UART
1483         default 0x4000e400 if DEBUG_LL_UART_EFM32
1484         default 0x40081000 if DEBUG_LPC18XX_UART0
1485         default 0x40090000 if DEBUG_LPC32XX
1486         default 0x40100000 if DEBUG_PXA_UART1
1487         default 0x42000000 if DEBUG_GEMINI
1488         default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1489                                 DEBUG_S3C2410_UART0)
1490         default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1491                                 DEBUG_S3C2410_UART1)
1492         default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1493                                 DEBUG_S3C2410_UART2)
1494         default 0x78000000 if DEBUG_CNS3XXX
1495         default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1496         default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1497         default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1498         default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1499         default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1500         default 0x80010000 if DEBUG_ASM9260_UART
1501         default 0x80070000 if DEBUG_IMX23_UART
1502         default 0x80074000 if DEBUG_IMX28_UART
1503         default 0x80230000 if DEBUG_PICOXCELL_UART
1504         default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1505         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1506         default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1507         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1508         default 0xc0013000 if DEBUG_U300_UART
1509         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1510         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1511         default 0xd0000000 if DEBUG_SPEAR3XX
1512         default 0xd0012000 if DEBUG_MVEBU_UART0
1513         default 0xc81004c0 if DEBUG_MESON_UARTAO
1514         default 0xd4017000 if DEBUG_MMP_UART2
1515         default 0xd4018000 if DEBUG_MMP_UART3
1516         default 0xe0000000 if DEBUG_SPEAR13XX
1517         default 0xe4007000 if DEBUG_HIP04_UART
1518         default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1519         default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1520         default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1521         default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1522         default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1523         default 0xe8008000 if DEBUG_R7S72100_SCIF2
1524         default 0xf0000be0 if ARCH_EBSA110
1525         default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1526         default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1527         default 0xf7fc9000 if DEBUG_BERLIN_UART
1528         default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1529         default 0xf8b00000 if DEBUG_HIX5HD2_UART
1530         default 0xf991e000 if DEBUG_QCOM_UARTDM
1531         default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1532         default 0xfcb00000 if DEBUG_HI3620_UART
1533         default 0xfd883000 if DEBUG_ALPINE_UART0
1534         default 0xfe800000 if ARCH_IOP32X
1535         default 0xff690000 if DEBUG_RK32_UART2
1536         default 0xffc02000 if DEBUG_SOCFPGA_UART0
1537         default 0xffc02100 if DEBUG_SOCFPGA_UART1
1538         default 0xffd82340 if ARCH_IOP13XX
1539         default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1540         default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1541         default 0xfff36000 if DEBUG_HIGHBANK_UART
1542         default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1543         default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1544         default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1545         default 0xfffe8600 if DEBUG_BCM63XX_UART
1546         default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1547         default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1548         default 0xfffff700 if ARCH_IOP33X
1549         depends on ARCH_EP93XX || \
1550                 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1551                 DEBUG_LL_UART_EFM32 || \
1552                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1553                 DEBUG_NETX_UART || \
1554                 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1555                 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1556                 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1557                 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1558                 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1559                 DEBUG_S3C64XX_UART || \
1560                 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1561                 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1562                 DEBUG_AT91_UART
1563 
1564 config DEBUG_UART_VIRT
1565         hex "Virtual base address of debug UART"
1566         default 0xe0000a00 if DEBUG_NETX_UART
1567         default 0xe0010fe0 if ARCH_RPC
1568         default 0xf0000be0 if ARCH_EBSA110
1569         default 0xf0010000 if DEBUG_ASM9260_UART
1570         default 0xf01fb000 if DEBUG_NOMADIK_UART
1571         default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1572         default 0xf1000300 if DEBUG_BCM_5301X
1573         default 0xf1002000 if DEBUG_MT8127_UART0
1574         default 0xf1006000 if DEBUG_MT6589_UART0
1575         default 0xf1009000 if DEBUG_MT8135_UART3
1576         default 0xf11f1000 if DEBUG_VERSATILE
1577         default 0xf1600000 if DEBUG_INTEGRATOR
1578         default 0xf1c28000 if DEBUG_SUNXI_UART0
1579         default 0xf1c28400 if DEBUG_SUNXI_UART1
1580         default 0xf1f02800 if DEBUG_SUNXI_R_UART
1581         default 0xf31004c0 if DEBUG_MESON_UARTAO
1582         default 0xf4090000 if DEBUG_LPC32XX
1583         default 0xf4200000 if DEBUG_GEMINI
1584         default 0xf6200000 if DEBUG_PXA_UART1
1585         default 0xf7000000 if DEBUG_SUN9I_UART0
1586         default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1587         default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1588                                 DEBUG_S3C2410_UART0)
1589         default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1590         default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1591         default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1592         default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1593                                 DEBUG_S3C2410_UART1)
1594         default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1595                                 DEBUG_S3C2410_UART2)
1596         default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1597         default 0xf7fc9000 if DEBUG_BERLIN_UART
1598         default 0xf8007000 if DEBUG_HIP04_UART
1599         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1600         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1601         default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1602         default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1603         default 0xfa71e000 if DEBUG_QCOM_UARTDM
1604         default 0xfb002000 if DEBUG_CNS3XXX
1605         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1606         default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1607         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1608         default 0xfc705000 if DEBUG_ZTE_ZX
1609         default 0xfcfe8600 if DEBUG_BCM63XX_UART
1610         default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1611         default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1612         default 0xfd883000 if DEBUG_ALPINE_UART0
1613         default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1614         default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1615         default 0xfe017000 if DEBUG_MMP_UART2
1616         default 0xfe018000 if DEBUG_MMP_UART3
1617         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1618         default 0xfe230000 if DEBUG_PICOXCELL_UART
1619         default 0xfe300000 if DEBUG_BCM_KONA_UART
1620         default 0xfe800000 if ARCH_IOP32X
1621         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1622         default 0xfeb24000 if DEBUG_RK3X_UART0
1623         default 0xfeb26000 if DEBUG_RK3X_UART1
1624         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1625         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1626         default 0xfec02000 if DEBUG_SOCFPGA_UART0
1627         default 0xfec02100 if DEBUG_SOCFPGA_UART1
1628         default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1629         default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1630         default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1631         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1632         default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1633         default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1634         default 0xfec90000 if DEBUG_RK32_UART2
1635         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1636         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1637         default 0xfed60000 if DEBUG_RK29_UART0
1638         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1639         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1640         default 0xfedc0000 if DEBUG_EP93XX
1641         default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1642         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1643         default 0xfee82340 if ARCH_IOP13XX
1644         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1645         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1646         default 0xfef36000 if DEBUG_HIGHBANK_UART
1647         default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1648         default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1649         default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1650         default 0xfefff700 if ARCH_IOP33X
1651         default 0xff003000 if DEBUG_U300_UART
1652         default 0xffd01000 if DEBUG_HIP01_UART
1653         default DEBUG_UART_PHYS if !MMU
1654         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1655                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1656                 DEBUG_NETX_UART || \
1657                 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1658                 DEBUG_S3C64XX_UART || \
1659                 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1660                 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1661                 DEBUG_AT91_UART
1662 
1663 config DEBUG_UART_8250_SHIFT
1664         int "Register offset shift for the 8250 debug UART"
1665         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1666         default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1667                 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1668         default 2
1669 
1670 config DEBUG_UART_8250_WORD
1671         bool "Use 32-bit accesses for 8250 UART"
1672         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1673         depends on DEBUG_UART_8250_SHIFT >= 2
1674         default y if DEBUG_PICOXCELL_UART || \
1675                 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \
1676                 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
1677                 DEBUG_ALPINE_UART0 || \
1678                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1679                 DEBUG_DAVINCI_DA8XX_UART2 || \
1680                 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1681 
1682 config DEBUG_UART_8250_PALMCHIP
1683         bool "8250 UART is Palmchip BK-310x"
1684         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1685         help
1686           Palmchip provides a UART implementation compatible with 16550
1687           except for having a different register layout.  Say Y here if
1688           the debug UART is of this type.
1689 
1690 config DEBUG_UART_8250_FLOW_CONTROL
1691         bool "Enable flow control for 8250 UART"
1692         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1693         default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1694 
1695 config DEBUG_UNCOMPRESS
1696         bool
1697         depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1698         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1699                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1700                      !DEBUG_BRCMSTB_UART
1701         help
1702           This option influences the normal decompressor output for
1703           multiplatform kernels.  Normally, multiplatform kernels disable
1704           decompressor output because it is not possible to know where to
1705           send the decompressor output.
1706 
1707           When this option is set, the selected DEBUG_LL output method
1708           will be re-used for normal decompressor output on multiplatform
1709           kernels.
1710           
1711 
1712 config UNCOMPRESS_INCLUDE
1713         string
1714         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1715                                         PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1716         default "mach/uncompress.h"
1717 
1718 config EARLY_PRINTK
1719         bool "Early printk"
1720         depends on DEBUG_LL
1721         help
1722           Say Y here if you want to have an early console using the
1723           kernel low-level debugging functions. Add earlyprintk to your
1724           kernel parameters to enable this console.
1725 
1726 config ARM_KPROBES_TEST
1727         tristate "Kprobes test module"
1728         depends on KPROBES && MODULES
1729         help
1730           Perform tests of kprobes API and instruction set simulation.
1731 
1732 config PID_IN_CONTEXTIDR
1733         bool "Write the current PID to the CONTEXTIDR register"
1734         depends on CPU_COPY_V6
1735         help
1736           Enabling this option causes the kernel to write the current PID to
1737           the PROCID field of the CONTEXTIDR register, at the expense of some
1738           additional instructions during context switch. Say Y here only if you
1739           are planning to use hardware trace tools with this kernel.
1740 
1741 config DEBUG_SET_MODULE_RONX
1742         bool "Set loadable kernel module data as NX and text as RO"
1743         depends on MODULES && MMU
1744         ---help---
1745           This option helps catch unintended modifications to loadable
1746           kernel module's text and read-only data. It also prevents execution
1747           of module data. Such protection may interfere with run-time code
1748           patching and dynamic kernel tracing - and they might also protect
1749           against certain classes of kernel exploits.
1750           If in doubt, say "N".
1751 
1752 source "drivers/hwtracing/coresight/Kconfig"
1753 
1754 endmenu

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