Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

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         select DEBUG_FS
  9         ---help---
 10           Say Y here if you want to show the kernel pagetable layout in a
 11           debugfs file. This information is only useful for kernel developers
 12           who are working in architecture specific areas of the kernel.
 13           It is probably not a good idea to enable this feature in a production
 14           kernel.
 15           If in doubt, say "N"
 16 
 17 config STRICT_DEVMEM
 18         bool "Filter access to /dev/mem"
 19         depends on MMU
 20         ---help---
 21           If this option is disabled, you allow userspace (root) access to all
 22           of memory, including kernel and userspace memory. Accidental
 23           access to this is obviously disastrous, but specific access can
 24           be used by people debugging the kernel.
 25 
 26           If this option is switched on, the /dev/mem file only allows
 27           userspace access to memory mapped peripherals.
 28 
 29           If in doubt, say Y.
 30 
 31 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
 32 # If you know what you are doing and are willing to live without stack
 33 # traces, you can get a slightly smaller kernel by setting this option to
 34 # n, but then RMK will have to kill you ;).
 35 config FRAME_POINTER
 36         bool
 37         depends on !THUMB2_KERNEL
 38         default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
 39         help
 40           If you say N here, the resulting kernel will be slightly smaller and
 41           faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
 42           when a problem occurs with the kernel, the information that is
 43           reported is severely limited.
 44 
 45 config ARM_UNWIND
 46         bool "Enable stack unwinding support (EXPERIMENTAL)"
 47         depends on AEABI
 48         default y
 49         help
 50           This option enables stack unwinding support in the kernel
 51           using the information automatically generated by the
 52           compiler. The resulting kernel image is slightly bigger but
 53           the performance is not affected. Currently, this feature
 54           only works with EABI compilers. If unsure say Y.
 55 
 56 config OLD_MCOUNT
 57         bool
 58         depends on FUNCTION_TRACER && FRAME_POINTER
 59         default y
 60 
 61 config DEBUG_USER
 62         bool "Verbose user fault messages"
 63         help
 64           When a user program crashes due to an exception, the kernel can
 65           print a brief message explaining what the problem was. This is
 66           sometimes helpful for debugging but serves no purpose on a
 67           production system. Most people should say N here.
 68 
 69           In addition, you need to pass user_debug=N on the kernel command
 70           line to enable this feature.  N consists of the sum of:
 71 
 72               1 - undefined instruction events
 73               2 - system calls
 74               4 - invalid data aborts
 75               8 - SIGSEGV faults
 76              16 - SIGBUS faults
 77 
 78 # These options are only for real kernel hackers who want to get their hands dirty.
 79 config DEBUG_LL
 80         bool "Kernel low-level debugging functions (read help!)"
 81         depends on DEBUG_KERNEL
 82         help
 83           Say Y here to include definitions of printascii, printch, printhex
 84           in the kernel.  This is helpful if you are debugging code that
 85           executes before the console is initialized.
 86 
 87           Note that selecting this option will limit the kernel to a single
 88           UART definition, as specified below. Attempting to boot the kernel
 89           image on a different platform *will not work*, so this option should
 90           not be enabled for kernels that are intended to be portable.
 91 
 92 choice
 93         prompt "Kernel low-level debugging port"
 94         depends on DEBUG_LL
 95 
 96         config AT91_DEBUG_LL_DBGU0
 97                 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
 98                 depends on HAVE_AT91_DBGU0
 99 
100         config AT91_DEBUG_LL_DBGU1
101                 bool "Kernel low-level debugging on 9263 and 9g45"
102                 depends on HAVE_AT91_DBGU1
103 
104         config DEBUG_BCM2835
105                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
106                 depends on ARCH_BCM2835
107                 select DEBUG_UART_PL01X
108 
109         config DEBUG_BCM_5301X
110                 bool "Kernel low-level debugging on BCM5301X UART1"
111                 depends on ARCH_BCM_5301X
112                 select DEBUG_UART_PL01X
113 
114         config DEBUG_BCM_KONA_UART
115                 bool "Kernel low-level debugging messages via BCM KONA UART"
116                 depends on ARCH_BCM_MOBILE
117                 select DEBUG_UART_8250
118                 help
119                   Say Y here if you want kernel low-level debugging support
120                   on Broadcom SoC platforms.
121                   This low level debug works for Broadcom
122                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
123                   bcm11351, etc...)
124 
125         config DEBUG_BERLIN_UART
126                 bool "Marvell Berlin SoC Debug UART"
127                 depends on ARCH_BERLIN
128                 select DEBUG_UART_8250
129                 help
130                   Say Y here if you want kernel low-level debugging support
131                   on Marvell Berlin SoC based platforms.
132 
133         config DEBUG_CLPS711X_UART1
134                 bool "Kernel low-level debugging messages via UART1"
135                 depends on ARCH_CLPS711X
136                 help
137                   Say Y here if you want the debug print routines to direct
138                   their output to the first serial port on these devices.
139 
140         config DEBUG_CLPS711X_UART2
141                 bool "Kernel low-level debugging messages via UART2"
142                 depends on ARCH_CLPS711X
143                 help
144                   Say Y here if you want the debug print routines to direct
145                   their output to the second serial port on these devices.
146 
147         config DEBUG_CNS3XXX
148                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
149                 depends on ARCH_CNS3XXX
150                 select DEBUG_UART_PL01X
151                 help
152                   Say Y here if you want the debug print routines to direct
153                   their output to the CNS3xxx UART0.
154 
155         config DEBUG_DAVINCI_DA8XX_UART1
156                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
157                 depends on ARCH_DAVINCI_DA8XX
158                 select DEBUG_UART_8250
159                 help
160                   Say Y here if you want the debug print routines to direct
161                   their output to UART1 serial port on DaVinci DA8XX devices.
162 
163         config DEBUG_DAVINCI_DA8XX_UART2
164                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
165                 depends on ARCH_DAVINCI_DA8XX
166                 select DEBUG_UART_8250
167                 help
168                   Say Y here if you want the debug print routines to direct
169                   their output to UART2 serial port on DaVinci DA8XX devices.
170 
171         config DEBUG_DAVINCI_DMx_UART0
172                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
173                 depends on ARCH_DAVINCI_DMx
174                 select DEBUG_UART_8250
175                 help
176                   Say Y here if you want the debug print routines to direct
177                   their output to UART0 serial port on DaVinci DMx devices.
178 
179         config DEBUG_ZYNQ_UART0
180                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
181                 depends on ARCH_ZYNQ
182                 help
183                   Say Y here if you want the debug print routines to direct
184                   their output to UART0 on the Zynq platform.
185 
186         config DEBUG_ZYNQ_UART1
187                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
188                 depends on ARCH_ZYNQ
189                 help
190                   Say Y here if you want the debug print routines to direct
191                   their output to UART1 on the Zynq platform.
192 
193                   If you have a ZC702 board and want early boot messages to
194                   appear on the USB serial adaptor, select this option.
195 
196         config DEBUG_DC21285_PORT
197                 bool "Kernel low-level debugging messages via footbridge serial port"
198                 depends on FOOTBRIDGE
199                 help
200                   Say Y here if you want the debug print routines to direct
201                   their output to the serial port in the DC21285 (Footbridge).
202 
203         config DEBUG_FOOTBRIDGE_COM1
204                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
205                 depends on FOOTBRIDGE
206                 help
207                   Say Y here if you want the debug print routines to direct
208                   their output to the 8250 at PCI COM1.
209 
210         config DEBUG_HI3620_UART
211                 bool "Hisilicon HI3620 Debug UART"
212                 depends on ARCH_HI3xxx
213                 select DEBUG_UART_PL01X
214                 help
215                   Say Y here if you want kernel low-level debugging support
216                   on HI3620 UART.
217 
218         config DEBUG_HI3716_UART
219                 bool "Hisilicon Hi3716 Debug UART"
220                 depends on ARCH_HI3xxx
221                 select DEBUG_UART_PL01X
222                 help
223                   Say Y here if you want kernel low-level debugging support
224                   on HI3716 UART.
225 
226         config DEBUG_HIGHBANK_UART
227                 bool "Kernel low-level debugging messages via Highbank UART"
228                 depends on ARCH_HIGHBANK
229                 select DEBUG_UART_PL01X
230                 help
231                   Say Y here if you want the debug print routines to direct
232                   their output to the UART on Highbank based devices.
233 
234         config DEBUG_IMX1_UART
235                 bool "i.MX1 Debug UART"
236                 depends on SOC_IMX1
237                 help
238                   Say Y here if you want kernel low-level debugging support
239                   on i.MX1.
240 
241         config DEBUG_IMX23_UART
242                 bool "i.MX23 Debug UART"
243                 depends on SOC_IMX23
244                 select DEBUG_UART_PL01X
245                 help
246                   Say Y here if you want kernel low-level debugging support
247                   on i.MX23.
248 
249         config DEBUG_IMX25_UART
250                 bool "i.MX25 Debug UART"
251                 depends on SOC_IMX25
252                 help
253                   Say Y here if you want kernel low-level debugging support
254                   on i.MX25.
255 
256         config DEBUG_IMX21_IMX27_UART
257                 bool "i.MX21 and i.MX27 Debug UART"
258                 depends on SOC_IMX21 || SOC_IMX27
259                 help
260                   Say Y here if you want kernel low-level debugging support
261                   on i.MX21 or i.MX27.
262 
263         config DEBUG_IMX28_UART
264                 bool "i.MX28 Debug UART"
265                 depends on SOC_IMX28
266                 select DEBUG_UART_PL01X
267                 help
268                   Say Y here if you want kernel low-level debugging support
269                   on i.MX28.
270 
271         config DEBUG_IMX31_UART
272                 bool "i.MX31 Debug UART"
273                 depends on SOC_IMX31
274                 help
275                   Say Y here if you want kernel low-level debugging support
276                   on i.MX31.
277 
278         config DEBUG_IMX35_UART
279                 bool "i.MX35 Debug UART"
280                 depends on SOC_IMX35
281                 help
282                   Say Y here if you want kernel low-level debugging support
283                   on i.MX35.
284 
285         config DEBUG_IMX50_UART
286                 bool "i.MX50 Debug UART"
287                 depends on SOC_IMX50
288                 help
289                   Say Y here if you want kernel low-level debugging support
290                   on i.MX50.
291 
292         config DEBUG_IMX51_UART
293                 bool "i.MX51 Debug UART"
294                 depends on SOC_IMX51
295                 help
296                   Say Y here if you want kernel low-level debugging support
297                   on i.MX51.
298 
299         config DEBUG_IMX53_UART
300                 bool "i.MX53 Debug UART"
301                 depends on SOC_IMX53
302                 help
303                   Say Y here if you want kernel low-level debugging support
304                   on i.MX53.
305 
306         config DEBUG_IMX6Q_UART
307                 bool "i.MX6Q/DL Debug UART"
308                 depends on SOC_IMX6Q
309                 help
310                   Say Y here if you want kernel low-level debugging support
311                   on i.MX6Q/DL.
312 
313         config DEBUG_IMX6SL_UART
314                 bool "i.MX6SL Debug UART"
315                 depends on SOC_IMX6SL
316                 help
317                   Say Y here if you want kernel low-level debugging support
318                   on i.MX6SL.
319 
320         config DEBUG_KEYSTONE_UART0
321                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
322                 depends on ARCH_KEYSTONE
323                 select DEBUG_UART_8250
324                 help
325                   Say Y here if you want the debug print routines to direct
326                   their output to UART0 serial port on KEYSTONE2 devices.
327 
328         config DEBUG_KEYSTONE_UART1
329                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
330                 depends on ARCH_KEYSTONE
331                 select DEBUG_UART_8250
332                 help
333                   Say Y here if you want the debug print routines to direct
334                   their output to UART1 serial port on KEYSTONE2 devices.
335 
336         config DEBUG_MMP_UART2
337                 bool "Kernel low-level debugging message via MMP UART2"
338                 depends on ARCH_MMP
339                 select DEBUG_UART_8250
340                 help
341                   Say Y here if you want kernel low-level debugging support
342                   on MMP UART2.
343 
344         config DEBUG_MMP_UART3
345                 bool "Kernel low-level debugging message via MMP UART3"
346                 depends on ARCH_MMP
347                 select DEBUG_UART_8250
348                 help
349                   Say Y here if you want kernel low-level debugging support
350                   on MMP UART3.
351 
352         config DEBUG_MSM_UART1
353                 bool "Kernel low-level debugging messages via MSM UART1"
354                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
355                 select DEBUG_MSM_UART
356                 help
357                   Say Y here if you want the debug print routines to direct
358                   their output to the first serial port on MSM devices.
359 
360         config DEBUG_MSM_UART2
361                 bool "Kernel low-level debugging messages via MSM UART2"
362                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
363                 select DEBUG_MSM_UART
364                 help
365                   Say Y here if you want the debug print routines to direct
366                   their output to the second serial port on MSM devices.
367 
368         config DEBUG_MSM_UART3
369                 bool "Kernel low-level debugging messages via MSM UART3"
370                 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
371                 select DEBUG_MSM_UART
372                 help
373                   Say Y here if you want the debug print routines to direct
374                   their output to the third serial port on MSM devices.
375 
376         config DEBUG_MSM8660_UART
377                 bool "Kernel low-level debugging messages via MSM 8660 UART"
378                 depends on ARCH_MSM8X60
379                 select MSM_HAS_DEBUG_UART_HS
380                 select DEBUG_MSM_UART
381                 help
382                   Say Y here if you want the debug print routines to direct
383                   their output to the serial port on MSM 8660 devices.
384 
385         config DEBUG_MSM8960_UART
386                 bool "Kernel low-level debugging messages via MSM 8960 UART"
387                 depends on ARCH_MSM8960
388                 select MSM_HAS_DEBUG_UART_HS
389                 select DEBUG_MSM_UART
390                 help
391                   Say Y here if you want the debug print routines to direct
392                   their output to the serial port on MSM 8960 devices.
393 
394         config DEBUG_MSM8974_UART
395                 bool "Kernel low-level debugging messages via MSM 8974 UART"
396                 depends on ARCH_MSM8974
397                 select MSM_HAS_DEBUG_UART_HS
398                 select DEBUG_MSM_UART
399                 help
400                   Say Y here if you want the debug print routines to direct
401                   their output to the serial port on MSM 8974 devices.
402 
403         config DEBUG_MVEBU_UART
404                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
405                 depends on ARCH_MVEBU
406                 select DEBUG_UART_8250
407                 help
408                   Say Y here if you want kernel low-level debugging support
409                   on MVEBU based platforms.
410 
411                   This option should be used with the old bootloaders
412                   that left the internal registers mapped at
413                   0xd0000000. As of today, this is the case on
414                   platforms such as the Globalscale Mirabox or the
415                   Plathome OpenBlocks AX3, when using the original
416                   bootloader.
417 
418                   If the wrong DEBUG_MVEBU_UART* option is selected,
419                   when u-boot hands over to the kernel, the system
420                   silently crashes, with no serial output at all.
421 
422         config DEBUG_MVEBU_UART_ALTERNATE
423                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
424                 depends on ARCH_MVEBU
425                 select DEBUG_UART_8250
426                 help
427                   Say Y here if you want kernel low-level debugging support
428                   on MVEBU based platforms.
429 
430                   This option should be used with the new bootloaders
431                   that remap the internal registers at 0xf1000000.
432 
433                   If the wrong DEBUG_MVEBU_UART* option is selected,
434                   when u-boot hands over to the kernel, the system
435                   silently crashes, with no serial output at all.
436 
437         config DEBUG_VF_UART
438                 bool "Vybrid UART"
439                 depends on SOC_VF610
440                 help
441                   Say Y here if you want kernel low-level debugging support
442                   on Vybrid based platforms.
443 
444         config DEBUG_NOMADIK_UART
445                 bool "Kernel low-level debugging messages via NOMADIK UART"
446                 depends on ARCH_NOMADIK
447                 select DEBUG_UART_PL01X
448                 help
449                   Say Y here if you want kernel low-level debugging support
450                   on NOMADIK based platforms.
451 
452         config DEBUG_NSPIRE_CLASSIC_UART
453                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
454                 depends on ARCH_NSPIRE
455                 select DEBUG_UART_8250
456                 help
457                   Say Y here if you want kernel low-level debugging support
458                   on TI-NSPIRE classic models.
459 
460         config DEBUG_NSPIRE_CX_UART
461                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
462                 depends on ARCH_NSPIRE
463                 select DEBUG_UART_PL01X
464                 help
465                   Say Y here if you want kernel low-level debugging support
466                   on TI-NSPIRE CX models.
467 
468         config DEBUG_OMAP2UART1
469                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
470                 depends on ARCH_OMAP2PLUS
471                 select DEBUG_OMAP2PLUS_UART
472                 help
473                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
474                   omap3 torpedo and 3530 lv som.
475 
476         config DEBUG_OMAP2UART2
477                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
478                 depends on ARCH_OMAP2PLUS
479                 select DEBUG_OMAP2PLUS_UART
480 
481         config DEBUG_OMAP2UART3
482                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
483                 depends on ARCH_OMAP2PLUS
484                 select DEBUG_OMAP2PLUS_UART
485 
486         config DEBUG_OMAP3UART3
487                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
488                 depends on ARCH_OMAP2PLUS
489                 select DEBUG_OMAP2PLUS_UART
490                 help
491                   This covers at least cm_t3x, beagle, crane, devkit8000,
492                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
493                   and 3517evm.
494 
495         config DEBUG_OMAP4UART3
496                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
497                 depends on ARCH_OMAP2PLUS
498                 select DEBUG_OMAP2PLUS_UART
499 
500         config DEBUG_OMAP3UART4
501                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
502                 depends on ARCH_OMAP2PLUS
503                 select DEBUG_OMAP2PLUS_UART
504 
505         config DEBUG_OMAP4UART4
506                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
507                 depends on ARCH_OMAP2PLUS
508                 select DEBUG_OMAP2PLUS_UART
509 
510         config DEBUG_TI81XXUART1
511                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
512                 depends on ARCH_OMAP2PLUS
513                 select DEBUG_OMAP2PLUS_UART
514 
515         config DEBUG_TI81XXUART2
516                 bool "Kernel low-level debugging messages via TI81XX UART2"
517                 depends on ARCH_OMAP2PLUS
518                 select DEBUG_OMAP2PLUS_UART
519 
520         config DEBUG_TI81XXUART3
521                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
522                 depends on ARCH_OMAP2PLUS
523                 select DEBUG_OMAP2PLUS_UART
524 
525         config DEBUG_AM33XXUART1
526                 bool "Kernel low-level debugging messages via AM33XX UART1"
527                 depends on ARCH_OMAP2PLUS
528                 select DEBUG_OMAP2PLUS_UART
529 
530         config DEBUG_ZOOM_UART
531                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
532                 depends on ARCH_OMAP2PLUS
533                 select DEBUG_OMAP2PLUS_UART
534 
535         config DEBUG_PICOXCELL_UART
536                 depends on ARCH_PICOXCELL
537                 bool "Use PicoXcell UART for low-level debug"
538                 select DEBUG_UART_8250
539                 help
540                   Say Y here if you want kernel low-level debugging support
541                   on PicoXcell based platforms.
542 
543         config DEBUG_PXA_UART1
544                 depends on ARCH_PXA
545                 bool "Use PXA UART1 for low-level debug"
546                 select DEBUG_UART_8250
547                 help
548                   Say Y here if you want kernel low-level debugging support
549                   on PXA UART1.
550 
551         config DEBUG_REALVIEW_STD_PORT
552                 bool "RealView Default UART"
553                 depends on ARCH_REALVIEW
554                 select DEBUG_UART_PL01X
555                 help
556                   Say Y here if you want the debug print routines to direct
557                   their output to the serial port on RealView EB, PB11MP, PBA8
558                   and PBX platforms.
559 
560         config DEBUG_REALVIEW_PB1176_PORT
561                 bool "RealView PB1176 UART"
562                 depends on MACH_REALVIEW_PB1176
563                 select DEBUG_UART_PL01X
564                 help
565                   Say Y here if you want the debug print routines to direct
566                   their output to the standard serial port on the RealView
567                   PB1176 platform.
568 
569         config DEBUG_RK29_UART0
570                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
571                 depends on ARCH_ROCKCHIP
572                 select DEBUG_UART_8250
573                 help
574                   Say Y here if you want kernel low-level debugging support
575                   on Rockchip based platforms.
576 
577         config DEBUG_RK29_UART1
578                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
579                 depends on ARCH_ROCKCHIP
580                 select DEBUG_UART_8250
581                 help
582                   Say Y here if you want kernel low-level debugging support
583                   on Rockchip based platforms.
584 
585         config DEBUG_RK29_UART2
586                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
587                 depends on ARCH_ROCKCHIP
588                 select DEBUG_UART_8250
589                 help
590                   Say Y here if you want kernel low-level debugging support
591                   on Rockchip based platforms.
592 
593         config DEBUG_RK3X_UART0
594                 bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
595                 depends on ARCH_ROCKCHIP
596                 select DEBUG_UART_8250
597                 help
598                   Say Y here if you want kernel low-level debugging support
599                   on Rockchip based platforms.
600 
601         config DEBUG_RK3X_UART1
602                 bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
603                 depends on ARCH_ROCKCHIP
604                 select DEBUG_UART_8250
605                 help
606                   Say Y here if you want kernel low-level debugging support
607                   on Rockchip based platforms.
608 
609         config DEBUG_RK3X_UART2
610                 bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
611                 depends on ARCH_ROCKCHIP
612                 select DEBUG_UART_8250
613                 help
614                   Say Y here if you want kernel low-level debugging support
615                   on Rockchip based platforms.
616 
617         config DEBUG_RK3X_UART3
618                 bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
619                 depends on ARCH_ROCKCHIP
620                 select DEBUG_UART_8250
621                 help
622                   Say Y here if you want kernel low-level debugging support
623                   on Rockchip based platforms.
624 
625         config DEBUG_S3C_UART0
626                 depends on PLAT_SAMSUNG
627                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
628                 bool "Use S3C UART 0 for low-level debug"
629                 help
630                   Say Y here if you want the debug print routines to direct
631                   their output to UART 0. The port must have been initialised
632                   by the boot-loader before use.
633 
634                   The uncompressor code port configuration is now handled
635                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
636 
637         config DEBUG_S3C_UART1
638                 depends on PLAT_SAMSUNG
639                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
640                 bool "Use S3C UART 1 for low-level debug"
641                 help
642                   Say Y here if you want the debug print routines to direct
643                   their output to UART 1. The port must have been initialised
644                   by the boot-loader before use.
645 
646                   The uncompressor code port configuration is now handled
647                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
648 
649         config DEBUG_S3C_UART2
650                 depends on PLAT_SAMSUNG
651                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
652                 bool "Use S3C UART 2 for low-level debug"
653                 help
654                   Say Y here if you want the debug print routines to direct
655                   their output to UART 2. The port must have been initialised
656                   by the boot-loader before use.
657 
658                   The uncompressor code port configuration is now handled
659                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
660 
661         config DEBUG_S3C_UART3
662                 depends on PLAT_SAMSUNG && ARCH_EXYNOS
663                 select DEBUG_EXYNOS_UART
664                 bool "Use S3C UART 3 for low-level debug"
665                 help
666                   Say Y here if you want the debug print routines to direct
667                   their output to UART 3. The port must have been initialised
668                   by the boot-loader before use.
669 
670                   The uncompressor code port configuration is now handled
671                   by CONFIG_S3C_LOWLEVEL_UART_PORT.
672 
673         config DEBUG_SOCFPGA_UART
674                 depends on ARCH_SOCFPGA
675                 bool "Use SOCFPGA UART for low-level debug"
676                 select DEBUG_UART_8250
677                 help
678                   Say Y here if you want kernel low-level debugging support
679                   on SOCFPGA based platforms.
680 
681         config DEBUG_SUNXI_UART0
682                 bool "Kernel low-level debugging messages via sunXi UART0"
683                 depends on ARCH_SUNXI
684                 select DEBUG_UART_8250
685                 help
686                   Say Y here if you want kernel low-level debugging support
687                   on Allwinner A1X based platforms on the UART0.
688 
689         config DEBUG_SUNXI_UART1
690                 bool "Kernel low-level debugging messages via sunXi UART1"
691                 depends on ARCH_SUNXI
692                 select DEBUG_UART_8250
693                 help
694                   Say Y here if you want kernel low-level debugging support
695                   on Allwinner A1X based platforms on the UART1.
696 
697         config TEGRA_DEBUG_UART_AUTO_ODMDATA
698                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
699                 depends on ARCH_TEGRA
700                 select DEBUG_TEGRA_UART
701                 help
702                   Automatically determines which UART to use for low-level
703                   debug based on the ODMDATA value. This value is part of
704                   the BCT, and is written to the boot memory device using
705                   nvflash, or other flashing tool.  When bits 19:18 are 3,
706                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
707                   are UART A/B/C/D/E.
708 
709         config TEGRA_DEBUG_UARTA
710                 bool "Kernel low-level debugging messages via Tegra UART A"
711                 depends on ARCH_TEGRA
712                 select DEBUG_TEGRA_UART
713                 help
714                   Say Y here if you want kernel low-level debugging support
715                   on Tegra based platforms.
716 
717         config TEGRA_DEBUG_UARTB
718                 bool "Kernel low-level debugging messages via Tegra UART B"
719                 depends on ARCH_TEGRA
720                 select DEBUG_TEGRA_UART
721                 help
722                   Say Y here if you want kernel low-level debugging support
723                   on Tegra based platforms.
724 
725         config TEGRA_DEBUG_UARTC
726                 bool "Kernel low-level debugging messages via Tegra UART C"
727                 depends on ARCH_TEGRA
728                 select DEBUG_TEGRA_UART
729                 help
730                   Say Y here if you want kernel low-level debugging support
731                   on Tegra based platforms.
732 
733         config TEGRA_DEBUG_UARTD
734                 bool "Kernel low-level debugging messages via Tegra UART D"
735                 depends on ARCH_TEGRA
736                 select DEBUG_TEGRA_UART
737                 help
738                   Say Y here if you want kernel low-level debugging support
739                   on Tegra based platforms.
740 
741         config TEGRA_DEBUG_UARTE
742                 bool "Kernel low-level debugging messages via Tegra UART E"
743                 depends on ARCH_TEGRA
744                 select DEBUG_TEGRA_UART
745                 help
746                   Say Y here if you want kernel low-level debugging support
747                   on Tegra based platforms.
748 
749         config DEBUG_SIRFPRIMA2_UART1
750                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
751                 depends on ARCH_PRIMA2
752                 help
753                   Say Y here if you want the debug print routines to direct
754                   their output to the uart1 port on SiRFprimaII devices.
755 
756         config DEBUG_SIRFMARCO_UART1
757                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
758                 depends on ARCH_MARCO
759                 help
760                   Say Y here if you want the debug print routines to direct
761                   their output to the uart1 port on SiRFmarco devices.
762 
763         config STIH41X_DEBUG_ASC2
764                 bool "Use StiH415/416 ASC2 UART for low-level debug"
765                 depends on ARCH_STI
766                 select DEBUG_STI_UART
767                 help
768                   Say Y here if you want kernel low-level debugging support
769                   on STiH415/416 based platforms like b2000, which has
770                   default UART wired up to ASC2.
771 
772                   If unsure, say N.
773 
774         config STIH41X_DEBUG_SBC_ASC1
775                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
776                 depends on ARCH_STI
777                 select DEBUG_STI_UART
778                 help
779                   Say Y here if you want kernel low-level debugging support
780                   on STiH415/416 based platforms like b2020. which has
781                   default UART wired up to SBC ASC1.
782 
783                   If unsure, say N.
784 
785         config DEBUG_U300_UART
786                 bool "Kernel low-level debugging messages via U300 UART0"
787                 depends on ARCH_U300
788                 select DEBUG_UART_PL01X
789                 help
790                   Say Y here if you want the debug print routines to direct
791                   their output to the uart port on U300 devices.
792 
793         config DEBUG_UX500_UART
794                 depends on ARCH_U8500
795                 bool "Use Ux500 UART for low-level debug"
796                 help
797                   Say Y here if you want kernel low-level debugging support
798                   on Ux500 based platforms.
799 
800         config DEBUG_VEXPRESS_UART0_DETECT
801                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
802                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
803                 help
804                   This option enables a simple heuristic which tries to determine
805                   the motherboard's memory map variant (original or RS1) and then
806                   choose the relevant UART0 base address.
807 
808                   Note that this will only work with standard A-class core tiles,
809                   and may fail with non-standard SMM or custom software models.
810 
811         config DEBUG_VEXPRESS_UART0_CA9
812                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
813                 depends on ARCH_VEXPRESS
814                 select DEBUG_UART_PL01X
815                 help
816                   This option selects UART0 at 0x10009000. Except for custom models,
817                   this applies only to the V2P-CA9 tile.
818 
819         config DEBUG_VEXPRESS_UART0_RS1
820                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
821                 depends on ARCH_VEXPRESS
822                 select DEBUG_UART_PL01X
823                 help
824                   This option selects UART0 at 0x1c090000. This applies to most
825                   of the tiles using the RS1 memory map, including all new A-class
826                   core tiles, FPGA-based SMMs and software models.
827 
828         config DEBUG_VEXPRESS_UART0_CRX
829                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
830                 depends on ARCH_VEXPRESS && !MMU
831                 select DEBUG_UART_PL01X
832                 help
833                   This option selects UART0 at 0xb0090000. This is appropriate for
834                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
835 
836         config DEBUG_VT8500_UART0
837                 bool "Use UART0 on VIA/Wondermedia SoCs"
838                 depends on ARCH_VT8500
839                 help
840                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
841                   devices, including VT8500, WM8505, WM8650 and WM8850.
842 
843         config DEBUG_LL_UART_NONE
844                 bool "No low-level debugging UART"
845                 depends on !ARCH_MULTIPLATFORM
846                 help
847                   Say Y here if your platform doesn't provide a UART option
848                   above. This relies on your platform choosing the right UART
849                   definition internally in order for low-level debugging to
850                   work.
851 
852         config DEBUG_ICEDCC
853                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
854                 help
855                   Say Y here if you want the debug print routines to direct
856                   their output to the EmbeddedICE macrocell's DCC channel using
857                   co-processor 14. This is known to work on the ARM9 style ICE
858                   channel and on the XScale with the PEEDI.
859 
860                   Note that the system will appear to hang during boot if there
861                   is nothing connected to read from the DCC.
862 
863         config DEBUG_SEMIHOSTING
864                 bool "Kernel low-level debug output via semihosting I/O"
865                 help
866                   Semihosting enables code running on an ARM target to use
867                   the I/O facilities on a host debugger/emulator through a
868                   simple SVC call. The host debugger or emulator must have
869                   semihosting enabled for the special svc call to be trapped
870                   otherwise the kernel will crash.
871 
872                   This is known to work with OpenOCD, as well as
873                   ARM's Fast Models, or any other controlling environment
874                   that implements semihosting.
875 
876                   For more details about semihosting, please see
877                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
878 
879         config DEBUG_LL_UART_8250
880                 bool "Kernel low-level debugging via 8250 UART"
881                 help
882                   Say Y here if you wish the debug print routes to direct
883                   their output to an 8250 UART.  You can use this option
884                   to provide the parameters for the 8250 UART rather than
885                   selecting one of the platform specific options above if
886                   you know the parameters for the port.
887 
888                   This option is preferred over the platform specific
889                   options; the platform specific options are deprecated
890                   and will be soon removed.
891 
892         config DEBUG_LL_UART_EFM32
893                 bool "Kernel low-level debugging via efm32 UART"
894                 depends on ARCH_EFM32
895                 help
896                   Say Y here if you want the debug print routines to direct
897                   their output to an UART or USART port on efm32 based
898                   machines. Use the following addresses for DEBUG_UART_PHYS:
899 
900                     0x4000c000 | USART0
901                     0x4000c400 | USART1
902                     0x4000c800 | USART2
903                     0x4000e000 | UART0
904                     0x4000e400 | UART1
905 
906         config DEBUG_LL_UART_PL01X
907                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
908                 help
909                   Say Y here if you wish the debug print routes to direct
910                   their output to a PL01x Primecell UART.  You can use
911                   this option to provide the parameters for the UART
912                   rather than selecting one of the platform specific
913                   options above if you know the parameters for the port.
914 
915                   This option is preferred over the platform specific
916                   options; the platform specific options are deprecated
917                   and will be soon removed.
918 
919 endchoice
920 
921 config DEBUG_EXYNOS_UART
922         bool
923 
924 config DEBUG_OMAP2PLUS_UART
925         bool
926         depends on ARCH_OMAP2PLUS
927 
928 config DEBUG_IMX_UART_PORT
929         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
930                                                 DEBUG_IMX25_UART || \
931                                                 DEBUG_IMX21_IMX27_UART || \
932                                                 DEBUG_IMX31_UART || \
933                                                 DEBUG_IMX35_UART || \
934                                                 DEBUG_IMX50_UART || \
935                                                 DEBUG_IMX51_UART || \
936                                                 DEBUG_IMX53_UART || \
937                                                 DEBUG_IMX6Q_UART || \
938                                                 DEBUG_IMX6SL_UART
939         default 1
940         depends on ARCH_MXC
941         help
942           Choose UART port on which kernel low-level debug messages
943           should be output.
944 
945 config DEBUG_TEGRA_UART
946         bool
947         depends on ARCH_TEGRA
948 
949 config DEBUG_STI_UART
950         bool
951         depends on ARCH_STI
952 
953 config DEBUG_MSM_UART
954         bool
955         depends on ARCH_MSM || ARCH_QCOM
956 
957 config DEBUG_LL_INCLUDE
958         string
959         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
960         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
961         default "debug/exynos.S" if DEBUG_EXYNOS_UART
962         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
963         default "debug/icedcc.S" if DEBUG_ICEDCC
964         default "debug/imx.S" if DEBUG_IMX1_UART || \
965                                  DEBUG_IMX25_UART || \
966                                  DEBUG_IMX21_IMX27_UART || \
967                                  DEBUG_IMX31_UART || \
968                                  DEBUG_IMX35_UART || \
969                                  DEBUG_IMX50_UART || \
970                                  DEBUG_IMX51_UART || \
971                                  DEBUG_IMX53_UART ||\
972                                  DEBUG_IMX6Q_UART || \
973                                  DEBUG_IMX6SL_UART
974         default "debug/msm.S" if DEBUG_MSM_UART
975         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
976         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
977         default "debug/sti.S" if DEBUG_STI_UART
978         default "debug/tegra.S" if DEBUG_TEGRA_UART
979         default "debug/ux500.S" if DEBUG_UX500_UART
980         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
981         default "debug/vf.S" if DEBUG_VF_UART
982         default "debug/vt8500.S" if DEBUG_VT8500_UART0
983         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
984         default "mach/debug-macro.S"
985 
986 # Compatibility options for PL01x
987 config DEBUG_UART_PL01X
988         def_bool ARCH_EP93XX || \
989                 ARCH_INTEGRATOR || \
990                 ARCH_SPEAR3XX || \
991                 ARCH_SPEAR6XX || \
992                 ARCH_SPEAR13XX || \
993                 ARCH_VERSATILE
994 
995 # Compatibility options for 8250
996 config DEBUG_UART_8250
997         def_bool ARCH_DOVE || ARCH_EBSA110 || \
998                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
999                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1000                 ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
1001                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1002 
1003 config DEBUG_UART_PHYS
1004         hex "Physical base address of debug UART"
1005         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1006         default 0x01c28000 if DEBUG_SUNXI_UART0
1007         default 0x01c28400 if DEBUG_SUNXI_UART1
1008         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1009         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1010         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1011         default 0x02531000 if DEBUG_KEYSTONE_UART1
1012         default 0x03010fe0 if ARCH_RPC
1013         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
1014                                 DEBUG_VEXPRESS_UART0_CA9
1015         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1016         default 0x10124000 if DEBUG_RK3X_UART0
1017         default 0x10126000 if DEBUG_RK3X_UART1
1018         default 0x101f1000 if ARCH_VERSATILE
1019         default 0x101fb000 if DEBUG_NOMADIK_UART
1020         default 0x16000000 if ARCH_INTEGRATOR
1021         default 0x18000300 if DEBUG_BCM_5301X
1022         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1023         default 0x20060000 if DEBUG_RK29_UART0
1024         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1025         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1026         default 0x20201000 if DEBUG_BCM2835
1027         default 0x3e000000 if DEBUG_BCM_KONA_UART
1028         default 0x4000e400 if DEBUG_LL_UART_EFM32
1029         default 0x40090000 if ARCH_LPC32XX
1030         default 0x40100000 if DEBUG_PXA_UART1
1031         default 0x42000000 if ARCH_GEMINI
1032         default 0x7c0003f8 if FOOTBRIDGE
1033         default 0x80070000 if DEBUG_IMX23_UART
1034         default 0x80074000 if DEBUG_IMX28_UART
1035         default 0x80230000 if DEBUG_PICOXCELL_UART
1036         default 0x808c0000 if ARCH_EP93XX
1037         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1038         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1039         default 0xc0013000 if DEBUG_U300_UART
1040         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1041         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1042         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1043         default 0xd0012000 if DEBUG_MVEBU_UART
1044         default 0xd4017000 if DEBUG_MMP_UART2
1045         default 0xd4018000 if DEBUG_MMP_UART3
1046         default 0xe0000000 if ARCH_SPEAR13XX
1047         default 0xf0000be0 if ARCH_EBSA110
1048         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1049         default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
1050                                 ARCH_ORION5X
1051         default 0xf7fc9000 if DEBUG_BERLIN_UART
1052         default 0xf8b00000 if DEBUG_HI3716_UART
1053         default 0xfcb00000 if DEBUG_HI3620_UART
1054         default 0xfe800000 if ARCH_IOP32X
1055         default 0xffc02000 if DEBUG_SOCFPGA_UART
1056         default 0xffd82340 if ARCH_IOP13XX
1057         default 0xfff36000 if DEBUG_HIGHBANK_UART
1058         default 0xfffff700 if ARCH_IOP33X
1059         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1060                 DEBUG_LL_UART_EFM32 || \
1061                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1062 
1063 config DEBUG_UART_VIRT
1064         hex "Virtual base address of debug UART"
1065         default 0xe0010fe0 if ARCH_RPC
1066         default 0xf0000be0 if ARCH_EBSA110
1067         default 0xf0009000 if DEBUG_CNS3XXX
1068         default 0xf01fb000 if DEBUG_NOMADIK_UART
1069         default 0xf0201000 if DEBUG_BCM2835
1070         default 0xf1000300 if DEBUG_BCM_5301X
1071         default 0xf11f1000 if ARCH_VERSATILE
1072         default 0xf1600000 if ARCH_INTEGRATOR
1073         default 0xf1c28000 if DEBUG_SUNXI_UART0
1074         default 0xf1c28400 if DEBUG_SUNXI_UART1
1075         default 0xf2100000 if DEBUG_PXA_UART1
1076         default 0xf4090000 if ARCH_LPC32XX
1077         default 0xf4200000 if ARCH_GEMINI
1078         default 0xf7fc9000 if DEBUG_BERLIN_UART
1079         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1080         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1081         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1082         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1083         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1084         default 0xfd000000 if ARCH_SPEAR13XX
1085         default 0xfd012000 if ARCH_MV78XX0
1086         default 0xfde12000 if ARCH_DOVE
1087         default 0xfe012000 if ARCH_ORION5X
1088         default 0xfe017000 if DEBUG_MMP_UART2
1089         default 0xfe018000 if DEBUG_MMP_UART3
1090         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1091         default 0xfe230000 if DEBUG_PICOXCELL_UART
1092         default 0xfe300000 if DEBUG_BCM_KONA_UART
1093         default 0xfe800000 if ARCH_IOP32X
1094         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
1095         default 0xfeb24000 if DEBUG_RK3X_UART0
1096         default 0xfeb26000 if DEBUG_RK3X_UART1
1097         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1098         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1099         default 0xfec02000 if DEBUG_SOCFPGA_UART
1100         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1101         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1102         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1103         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1104         default 0xfed12000 if ARCH_KIRKWOOD
1105         default 0xfed60000 if DEBUG_RK29_UART0
1106         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1107         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1108         default 0xfedc0000 if ARCH_EP93XX
1109         default 0xfee003f8 if FOOTBRIDGE
1110         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1111         default 0xfee82340 if ARCH_IOP13XX
1112         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1113         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1114         default 0xfef36000 if DEBUG_HIGHBANK_UART
1115         default 0xfefff700 if ARCH_IOP33X
1116         default 0xff003000 if DEBUG_U300_UART
1117         default DEBUG_UART_PHYS if !MMU
1118         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1119                 DEBUG_UART_8250 || DEBUG_UART_PL01X
1120 
1121 config DEBUG_UART_8250_SHIFT
1122         int "Register offset shift for the 8250 debug UART"
1123         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1124         default 0 if FOOTBRIDGE || ARCH_IOP32X
1125         default 2
1126 
1127 config DEBUG_UART_8250_WORD
1128         bool "Use 32-bit accesses for 8250 UART"
1129         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1130         depends on DEBUG_UART_8250_SHIFT >= 2
1131         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1132                 ARCH_KEYSTONE || \
1133                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1134                 DEBUG_DAVINCI_DA8XX_UART2 || \
1135                 DEBUG_BCM_KONA_UART
1136 
1137 config DEBUG_UART_8250_FLOW_CONTROL
1138         bool "Enable flow control for 8250 UART"
1139         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1140         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1141 
1142 config DEBUG_UNCOMPRESS
1143         bool
1144         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1145         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1146                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1147         help
1148           This option influences the normal decompressor output for
1149           multiplatform kernels.  Normally, multiplatform kernels disable
1150           decompressor output because it is not possible to know where to
1151           send the decompressor output.
1152 
1153           When this option is set, the selected DEBUG_LL output method
1154           will be re-used for normal decompressor output on multiplatform
1155           kernels.
1156           
1157 
1158 config UNCOMPRESS_INCLUDE
1159         string
1160         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1161                                         PLAT_SAMSUNG || ARCH_EFM32
1162         default "mach/uncompress.h"
1163 
1164 config EARLY_PRINTK
1165         bool "Early printk"
1166         depends on DEBUG_LL
1167         help
1168           Say Y here if you want to have an early console using the
1169           kernel low-level debugging functions. Add earlyprintk to your
1170           kernel parameters to enable this console.
1171 
1172 config OC_ETM
1173         bool "On-chip ETM and ETB"
1174         depends on ARM_AMBA
1175         help
1176           Enables the on-chip embedded trace macrocell and embedded trace
1177           buffer driver that will allow you to collect traces of the
1178           kernel code.
1179 
1180 config ARM_KPROBES_TEST
1181         tristate "Kprobes test module"
1182         depends on KPROBES && MODULES
1183         help
1184           Perform tests of kprobes API and instruction set simulation.
1185 
1186 config PID_IN_CONTEXTIDR
1187         bool "Write the current PID to the CONTEXTIDR register"
1188         depends on CPU_COPY_V6
1189         help
1190           Enabling this option causes the kernel to write the current PID to
1191           the PROCID field of the CONTEXTIDR register, at the expense of some
1192           additional instructions during context switch. Say Y here only if you
1193           are planning to use hardware trace tools with this kernel.
1194 
1195 config DEBUG_SET_MODULE_RONX
1196         bool "Set loadable kernel module data as NX and text as RO"
1197         depends on MODULES
1198         ---help---
1199           This option helps catch unintended modifications to loadable
1200           kernel module's text and read-only data. It also prevents execution
1201           of module data. Such protection may interfere with run-time code
1202           patching and dynamic kernel tracing - and they might also protect
1203           against certain classes of kernel exploits.
1204           If in doubt, say "N".
1205 
1206 endmenu

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