Version:  2.0.40 2.2.26 2.4.37 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 3.16 3.17 3.18 3.19

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 DEBUG_ASM9260_UART
 97                 bool "Kernel low-level debugging via asm9260 UART"
 98                 depends on MACH_ASM9260
 99                 help
100                   Say Y here if you want the debug print routines to direct
101                   their output to an UART or USART port on asm9260 based
102                   machines.
103 
104                     DEBUG_UART_PHYS | DEBUG_UART_VIRT
105 
106                     0x80000000      | 0xf0000000     | UART0
107                     0x80004000      | 0xf0004000     | UART1
108                     0x80008000      | 0xf0008000     | UART2
109                     0x8000c000      | 0xf000c000     | UART3
110                     0x80010000      | 0xf0010000     | UART4
111                     0x80014000      | 0xf0014000     | UART5
112                     0x80018000      | 0xf0018000     | UART6
113                     0x8001c000      | 0xf001c000     | UART7
114                     0x80020000      | 0xf0020000     | UART8
115                     0x80024000      | 0xf0024000     | UART9
116 
117         config AT91_DEBUG_LL_DBGU0
118                 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
119                 depends on HAVE_AT91_DBGU0
120 
121         config AT91_DEBUG_LL_DBGU1
122                 bool "Kernel low-level debugging on 9263 and 9g45"
123                 depends on HAVE_AT91_DBGU1
124 
125         config AT91_DEBUG_LL_DBGU2
126                 bool "Kernel low-level debugging on sama5d4"
127                 depends on HAVE_AT91_DBGU2
128 
129         config DEBUG_BCM2835
130                 bool "Kernel low-level debugging on BCM2835 PL011 UART"
131                 depends on ARCH_BCM2835
132                 select DEBUG_UART_PL01X
133 
134         config DEBUG_BCM_5301X
135                 bool "Kernel low-level debugging on BCM5301X UART1"
136                 depends on ARCH_BCM_5301X
137                 select DEBUG_UART_8250
138 
139         config DEBUG_BCM_KONA_UART
140                 bool "Kernel low-level debugging messages via BCM KONA UART"
141                 depends on ARCH_BCM_MOBILE
142                 select DEBUG_UART_8250
143                 help
144                   Say Y here if you want kernel low-level debugging support
145                   on Broadcom SoC platforms.
146                   This low level debug works for Broadcom
147                   mobile SoCs in the Kona family of chips (e.g. bcm28155,
148                   bcm11351, etc...)
149 
150         config DEBUG_BCM63XX
151                 bool "Kernel low-level debugging on BCM63XX UART"
152                 depends on ARCH_BCM_63XX
153                 select DEBUG_UART_BCM63XX
154 
155         config DEBUG_BERLIN_UART
156                 bool "Marvell Berlin SoC Debug UART"
157                 depends on ARCH_BERLIN
158                 select DEBUG_UART_8250
159                 help
160                   Say Y here if you want kernel low-level debugging support
161                   on Marvell Berlin SoC based platforms.
162 
163         config DEBUG_BRCMSTB_UART
164                 bool "Use BRCMSTB UART for low-level debug"
165                 depends on ARCH_BRCMSTB
166                 select DEBUG_UART_8250
167                 help
168                   Say Y here if you want the debug print routines to direct
169                   their output to the first serial port on these devices.
170 
171                   If you have a Broadcom STB chip and would like early print
172                   messages to appear over the UART, select this option.
173 
174         config DEBUG_CLPS711X_UART1
175                 bool "Kernel low-level debugging messages via UART1"
176                 depends on ARCH_CLPS711X
177                 help
178                   Say Y here if you want the debug print routines to direct
179                   their output to the first serial port on these devices.
180 
181         config DEBUG_CLPS711X_UART2
182                 bool "Kernel low-level debugging messages via UART2"
183                 depends on ARCH_CLPS711X
184                 help
185                   Say Y here if you want the debug print routines to direct
186                   their output to the second serial port on these devices.
187 
188         config DEBUG_CNS3XXX
189                 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
190                 depends on ARCH_CNS3XXX
191                 select DEBUG_UART_8250
192                 help
193                   Say Y here if you want the debug print routines to direct
194                   their output to the CNS3xxx UART0.
195 
196         config DEBUG_DAVINCI_DA8XX_UART1
197                 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
198                 depends on ARCH_DAVINCI_DA8XX
199                 select DEBUG_UART_8250
200                 help
201                   Say Y here if you want the debug print routines to direct
202                   their output to UART1 serial port on DaVinci DA8XX devices.
203 
204         config DEBUG_DAVINCI_DA8XX_UART2
205                 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
206                 depends on ARCH_DAVINCI_DA8XX
207                 select DEBUG_UART_8250
208                 help
209                   Say Y here if you want the debug print routines to direct
210                   their output to UART2 serial port on DaVinci DA8XX devices.
211 
212         config DEBUG_DAVINCI_DMx_UART0
213                 bool "Kernel low-level debugging on DaVinci DMx using UART0"
214                 depends on ARCH_DAVINCI_DMx
215                 select DEBUG_UART_8250
216                 help
217                   Say Y here if you want the debug print routines to direct
218                   their output to UART0 serial port on DaVinci DMx devices.
219 
220         config DEBUG_ZYNQ_UART0
221                 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
222                 depends on ARCH_ZYNQ
223                 help
224                   Say Y here if you want the debug print routines to direct
225                   their output to UART0 on the Zynq platform.
226 
227         config DEBUG_ZYNQ_UART1
228                 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
229                 depends on ARCH_ZYNQ
230                 help
231                   Say Y here if you want the debug print routines to direct
232                   their output to UART1 on the Zynq platform.
233 
234                   If you have a ZC702 board and want early boot messages to
235                   appear on the USB serial adaptor, select this option.
236 
237         config DEBUG_DC21285_PORT
238                 bool "Kernel low-level debugging messages via footbridge serial port"
239                 depends on FOOTBRIDGE
240                 help
241                   Say Y here if you want the debug print routines to direct
242                   their output to the serial port in the DC21285 (Footbridge).
243 
244         config DEBUG_FOOTBRIDGE_COM1
245                 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
246                 depends on FOOTBRIDGE
247                 help
248                   Say Y here if you want the debug print routines to direct
249                   their output to the 8250 at PCI COM1.
250 
251         config DEBUG_HI3620_UART
252                 bool "Hisilicon HI3620 Debug UART"
253                 depends on ARCH_HI3xxx
254                 select DEBUG_UART_PL01X
255                 help
256                   Say Y here if you want kernel low-level debugging support
257                   on HI3620 UART.
258 
259         config DEBUG_HI3716_UART
260                 bool "Hisilicon Hi3716 Debug UART"
261                 depends on ARCH_HI3xxx
262                 select DEBUG_UART_PL01X
263                 help
264                   Say Y here if you want kernel low-level debugging support
265                   on HI3716 UART.
266 
267         config DEBUG_HIGHBANK_UART
268                 bool "Kernel low-level debugging messages via Highbank UART"
269                 depends on ARCH_HIGHBANK
270                 select DEBUG_UART_PL01X
271                 help
272                   Say Y here if you want the debug print routines to direct
273                   their output to the UART on Highbank based devices.
274 
275         config DEBUG_HIP04_UART
276                 bool "Hisilicon HiP04 Debug UART"
277                 depends on ARCH_HIP04
278                 select DEBUG_UART_8250
279                 help
280                   Say Y here if you want kernel low-level debugging support
281                   on HIP04 UART.
282 
283         config DEBUG_HIX5HD2_UART
284                 bool "Hisilicon Hix5hd2 Debug UART"
285                 depends on ARCH_HIX5HD2
286                 select DEBUG_UART_PL01X
287                 help
288                   Say Y here if you want kernel low-level debugging support
289                   on Hix5hd2 UART.
290 
291         config DEBUG_IMX1_UART
292                 bool "i.MX1 Debug UART"
293                 depends on SOC_IMX1
294                 help
295                   Say Y here if you want kernel low-level debugging support
296                   on i.MX1.
297 
298         config DEBUG_IMX23_UART
299                 bool "i.MX23 Debug UART"
300                 depends on SOC_IMX23
301                 select DEBUG_UART_PL01X
302                 help
303                   Say Y here if you want kernel low-level debugging support
304                   on i.MX23.
305 
306         config DEBUG_IMX25_UART
307                 bool "i.MX25 Debug UART"
308                 depends on SOC_IMX25
309                 help
310                   Say Y here if you want kernel low-level debugging support
311                   on i.MX25.
312 
313         config DEBUG_IMX21_IMX27_UART
314                 bool "i.MX21 and i.MX27 Debug UART"
315                 depends on SOC_IMX21 || SOC_IMX27
316                 help
317                   Say Y here if you want kernel low-level debugging support
318                   on i.MX21 or i.MX27.
319 
320         config DEBUG_IMX28_UART
321                 bool "i.MX28 Debug UART"
322                 depends on SOC_IMX28
323                 select DEBUG_UART_PL01X
324                 help
325                   Say Y here if you want kernel low-level debugging support
326                   on i.MX28.
327 
328         config DEBUG_IMX31_UART
329                 bool "i.MX31 Debug UART"
330                 depends on SOC_IMX31
331                 help
332                   Say Y here if you want kernel low-level debugging support
333                   on i.MX31.
334 
335         config DEBUG_IMX35_UART
336                 bool "i.MX35 Debug UART"
337                 depends on SOC_IMX35
338                 help
339                   Say Y here if you want kernel low-level debugging support
340                   on i.MX35.
341 
342         config DEBUG_IMX50_UART
343                 bool "i.MX50 Debug UART"
344                 depends on SOC_IMX50
345                 help
346                   Say Y here if you want kernel low-level debugging support
347                   on i.MX50.
348 
349         config DEBUG_IMX51_UART
350                 bool "i.MX51 Debug UART"
351                 depends on SOC_IMX51
352                 help
353                   Say Y here if you want kernel low-level debugging support
354                   on i.MX51.
355 
356         config DEBUG_IMX53_UART
357                 bool "i.MX53 Debug UART"
358                 depends on SOC_IMX53
359                 help
360                   Say Y here if you want kernel low-level debugging support
361                   on i.MX53.
362 
363         config DEBUG_IMX6Q_UART
364                 bool "i.MX6Q/DL Debug UART"
365                 depends on SOC_IMX6Q
366                 help
367                   Say Y here if you want kernel low-level debugging support
368                   on i.MX6Q/DL.
369 
370         config DEBUG_IMX6SL_UART
371                 bool "i.MX6SL Debug UART"
372                 depends on SOC_IMX6SL
373                 help
374                   Say Y here if you want kernel low-level debugging support
375                   on i.MX6SL.
376 
377         config DEBUG_IMX6SX_UART
378                 bool "i.MX6SX Debug UART"
379                 depends on SOC_IMX6SX
380                 help
381                   Say Y here if you want kernel low-level debugging support
382                   on i.MX6SX.
383 
384         config DEBUG_KEYSTONE_UART0
385                 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
386                 depends on ARCH_KEYSTONE
387                 select DEBUG_UART_8250
388                 help
389                   Say Y here if you want the debug print routines to direct
390                   their output to UART0 serial port on KEYSTONE2 devices.
391 
392         config DEBUG_KEYSTONE_UART1
393                 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
394                 depends on ARCH_KEYSTONE
395                 select DEBUG_UART_8250
396                 help
397                   Say Y here if you want the debug print routines to direct
398                   their output to UART1 serial port on KEYSTONE2 devices.
399 
400         config DEBUG_MESON_UARTAO
401                 bool "Kernel low-level debugging via Meson6 UARTAO"
402                 depends on ARCH_MESON
403                 help
404                   Say Y here if you want kernel low-lever debugging support
405                   on Amlogic Meson6 based platforms on the UARTAO.
406 
407         config DEBUG_MMP_UART2
408                 bool "Kernel low-level debugging message via MMP UART2"
409                 depends on ARCH_MMP
410                 select DEBUG_UART_8250
411                 help
412                   Say Y here if you want kernel low-level debugging support
413                   on MMP UART2.
414 
415         config DEBUG_MMP_UART3
416                 bool "Kernel low-level debugging message via MMP UART3"
417                 depends on ARCH_MMP
418                 select DEBUG_UART_8250
419                 help
420                   Say Y here if you want kernel low-level debugging support
421                   on MMP UART3.
422 
423         config DEBUG_MSM_UART
424                 bool "Kernel low-level debugging messages via MSM UART"
425                 depends on ARCH_MSM
426                 help
427                   Say Y here if you want the debug print routines to direct
428                   their output to the serial port on MSM devices.
429 
430                   ARCH                DEBUG_UART_PHYS   DEBUG_UART_BASE   #
431                   MSM7X00A, QSD8X50   0xa9a00000        0xe1000000        UART1
432                   MSM7X00A, QSD8X50   0xa9b00000        0xe1000000        UART2
433                   MSM7X00A, QSD8X50   0xa9c00000        0xe1000000        UART3
434 
435                   MSM7X30             0xaca00000        0xe1000000        UART1
436                   MSM7X30             0xacb00000        0xe1000000        UART2
437                   MSM7X30             0xacc00000        0xe1000000        UART3
438 
439                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
440                   options based on your needs.
441 
442         config DEBUG_QCOM_UARTDM
443                 bool "Kernel low-level debugging messages via QCOM UARTDM"
444                 depends on ARCH_QCOM
445                 help
446                   Say Y here if you want the debug print routines to direct
447                   their output to the serial port on Qualcomm devices.
448 
449                   ARCH      DEBUG_UART_PHYS   DEBUG_UART_BASE
450                   APQ8084   0xf995e000        0xfa75e000
451                   MSM8X60   0x19c40000        0xf0040000
452                   MSM8960   0x16440000        0xf0040000
453                   MSM8974   0xf991e000        0xfa71e000
454 
455                   Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
456                   options based on your needs.
457 
458         config DEBUG_MVEBU_UART
459                 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
460                 depends on ARCH_MVEBU
461                 select DEBUG_UART_8250
462                 help
463                   Say Y here if you want kernel low-level debugging support
464                   on MVEBU based platforms.
465 
466                   This option should be used with the old bootloaders
467                   that left the internal registers mapped at
468                   0xd0000000. As of today, this is the case on
469                   platforms such as the Globalscale Mirabox or the
470                   Plathome OpenBlocks AX3, when using the original
471                   bootloader.
472 
473                   If the wrong DEBUG_MVEBU_UART* option is selected,
474                   when u-boot hands over to the kernel, the system
475                   silently crashes, with no serial output at all.
476 
477         config DEBUG_MVEBU_UART_ALTERNATE
478                 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
479                 depends on ARCH_MVEBU
480                 select DEBUG_UART_8250
481                 help
482                   Say Y here if you want kernel low-level debugging support
483                   on MVEBU based platforms.
484 
485                   This option should be used with the new bootloaders
486                   that remap the internal registers at 0xf1000000.
487 
488                   If the wrong DEBUG_MVEBU_UART* option is selected,
489                   when u-boot hands over to the kernel, the system
490                   silently crashes, with no serial output at all.
491 
492         config DEBUG_VF_UART
493                 bool "Vybrid UART"
494                 depends on SOC_VF610
495                 help
496                   Say Y here if you want kernel low-level debugging support
497                   on Vybrid based platforms.
498 
499         config DEBUG_NOMADIK_UART
500                 bool "Kernel low-level debugging messages via NOMADIK UART"
501                 depends on ARCH_NOMADIK
502                 select DEBUG_UART_PL01X
503                 help
504                   Say Y here if you want kernel low-level debugging support
505                   on NOMADIK based platforms.
506 
507         config DEBUG_NSPIRE_CLASSIC_UART
508                 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
509                 depends on ARCH_NSPIRE
510                 select DEBUG_UART_8250
511                 help
512                   Say Y here if you want kernel low-level debugging support
513                   on TI-NSPIRE classic models.
514 
515         config DEBUG_NSPIRE_CX_UART
516                 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
517                 depends on ARCH_NSPIRE
518                 select DEBUG_UART_PL01X
519                 help
520                   Say Y here if you want kernel low-level debugging support
521                   on TI-NSPIRE CX models.
522 
523         config DEBUG_OMAP2UART1
524                 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
525                 depends on ARCH_OMAP2PLUS
526                 select DEBUG_OMAP2PLUS_UART
527                 help
528                   This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
529                   omap3 torpedo and 3530 lv som.
530 
531         config DEBUG_OMAP2UART2
532                 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
533                 depends on ARCH_OMAP2PLUS
534                 select DEBUG_OMAP2PLUS_UART
535 
536         config DEBUG_OMAP2UART3
537                 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
538                 depends on ARCH_OMAP2PLUS
539                 select DEBUG_OMAP2PLUS_UART
540 
541         config DEBUG_OMAP3UART3
542                 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
543                 depends on ARCH_OMAP2PLUS
544                 select DEBUG_OMAP2PLUS_UART
545                 help
546                   This covers at least cm_t3x, beagle, crane, devkit8000,
547                   igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
548                   and 3517evm.
549 
550         config DEBUG_OMAP4UART3
551                 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
552                 depends on ARCH_OMAP2PLUS
553                 select DEBUG_OMAP2PLUS_UART
554 
555         config DEBUG_OMAP3UART4
556                 bool "Kernel low-level debugging messages via OMAP36XX UART4"
557                 depends on ARCH_OMAP2PLUS
558                 select DEBUG_OMAP2PLUS_UART
559 
560         config DEBUG_OMAP4UART4
561                 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
562                 depends on ARCH_OMAP2PLUS
563                 select DEBUG_OMAP2PLUS_UART
564 
565         config DEBUG_TI81XXUART1
566                 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
567                 depends on ARCH_OMAP2PLUS
568                 select DEBUG_OMAP2PLUS_UART
569 
570         config DEBUG_TI81XXUART2
571                 bool "Kernel low-level debugging messages via TI81XX UART2"
572                 depends on ARCH_OMAP2PLUS
573                 select DEBUG_OMAP2PLUS_UART
574 
575         config DEBUG_TI81XXUART3
576                 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
577                 depends on ARCH_OMAP2PLUS
578                 select DEBUG_OMAP2PLUS_UART
579 
580         config DEBUG_AM33XXUART1
581                 bool "Kernel low-level debugging messages via AM33XX UART1"
582                 depends on ARCH_OMAP2PLUS
583                 select DEBUG_OMAP2PLUS_UART
584 
585         config DEBUG_ZOOM_UART
586                 bool "Kernel low-level debugging messages via Zoom2/3 UART"
587                 depends on ARCH_OMAP2PLUS
588                 select DEBUG_OMAP2PLUS_UART
589 
590         config DEBUG_PICOXCELL_UART
591                 depends on ARCH_PICOXCELL
592                 bool "Use PicoXcell UART for low-level debug"
593                 select DEBUG_UART_8250
594                 help
595                   Say Y here if you want kernel low-level debugging support
596                   on PicoXcell based platforms.
597 
598         config DEBUG_PXA_UART1
599                 depends on ARCH_PXA
600                 bool "Use PXA UART1 for low-level debug"
601                 select DEBUG_UART_8250
602                 help
603                   Say Y here if you want kernel low-level debugging support
604                   on PXA UART1.
605 
606         config DEBUG_REALVIEW_STD_PORT
607                 bool "RealView Default UART"
608                 depends on ARCH_REALVIEW
609                 select DEBUG_UART_PL01X
610                 help
611                   Say Y here if you want the debug print routines to direct
612                   their output to the serial port on RealView EB, PB11MP, PBA8
613                   and PBX platforms.
614 
615         config DEBUG_REALVIEW_PB1176_PORT
616                 bool "RealView PB1176 UART"
617                 depends on MACH_REALVIEW_PB1176
618                 select DEBUG_UART_PL01X
619                 help
620                   Say Y here if you want the debug print routines to direct
621                   their output to the standard serial port on the RealView
622                   PB1176 platform.
623 
624         config DEBUG_RK29_UART0
625                 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
626                 depends on ARCH_ROCKCHIP
627                 select DEBUG_UART_8250
628                 help
629                   Say Y here if you want kernel low-level debugging support
630                   on Rockchip based platforms.
631 
632         config DEBUG_RK29_UART1
633                 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
634                 depends on ARCH_ROCKCHIP
635                 select DEBUG_UART_8250
636                 help
637                   Say Y here if you want kernel low-level debugging support
638                   on Rockchip based platforms.
639 
640         config DEBUG_RK29_UART2
641                 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
642                 depends on ARCH_ROCKCHIP
643                 select DEBUG_UART_8250
644                 help
645                   Say Y here if you want kernel low-level debugging support
646                   on Rockchip based platforms.
647 
648         config DEBUG_RK3X_UART0
649                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
650                 depends on ARCH_ROCKCHIP
651                 select DEBUG_UART_8250
652                 help
653                   Say Y here if you want kernel low-level debugging support
654                   on Rockchip based platforms.
655 
656         config DEBUG_RK3X_UART1
657                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
658                 depends on ARCH_ROCKCHIP
659                 select DEBUG_UART_8250
660                 help
661                   Say Y here if you want kernel low-level debugging support
662                   on Rockchip based platforms.
663 
664         config DEBUG_RK3X_UART2
665                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
666                 depends on ARCH_ROCKCHIP
667                 select DEBUG_UART_8250
668                 help
669                   Say Y here if you want kernel low-level debugging support
670                   on Rockchip based platforms.
671 
672         config DEBUG_RK3X_UART3
673                 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
674                 depends on ARCH_ROCKCHIP
675                 select DEBUG_UART_8250
676                 help
677                   Say Y here if you want kernel low-level debugging support
678                   on Rockchip based platforms.
679 
680         config DEBUG_RK32_UART2
681                 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
682                 depends on ARCH_ROCKCHIP
683                 select DEBUG_UART_8250
684                 help
685                   Say Y here if you want kernel low-level debugging support
686                   on Rockchip RK32xx based platforms.
687 
688         config DEBUG_R7S72100_SCIF2
689                 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
690                 depends on ARCH_R7S72100
691                 help
692                   Say Y here if you want kernel low-level debugging support
693                   via SCIF2 on Renesas RZ/A1H (R7S72100).
694 
695         config DEBUG_RCAR_GEN1_SCIF0
696                 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
697                 depends on ARCH_R8A7778
698                 help
699                   Say Y here if you want kernel low-level debugging support
700                   via SCIF0 on Renesas R-Car M1A (R8A7778).
701 
702         config DEBUG_RCAR_GEN1_SCIF2
703                 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
704                 depends on ARCH_R8A7779
705                 help
706                   Say Y here if you want kernel low-level debugging support
707                   via SCIF2 on Renesas R-Car H1 (R8A7779).
708 
709         config DEBUG_RCAR_GEN2_SCIF0
710                 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
711                 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
712                 help
713                   Say Y here if you want kernel low-level debugging support
714                   via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
715                   M2-N (R8A7793).
716 
717         config DEBUG_RCAR_GEN2_SCIF2
718                 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
719                 depends on ARCH_R8A7794
720                 help
721                   Say Y here if you want kernel low-level debugging support
722                   via SCIF2 on Renesas R-Car E2 (R8A7794).
723 
724         config DEBUG_RMOBILE_SCIFA0
725                 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
726                 depends on ARCH_R8A73A4 || ARCH_SH7372
727                 help
728                   Say Y here if you want kernel low-level debugging support
729                   via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
730                   AP4 (SH7372).
731 
732         config DEBUG_RMOBILE_SCIFA1
733                 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
734                 depends on ARCH_R8A7740
735                 help
736                   Say Y here if you want kernel low-level debugging support
737                   via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
738 
739         config DEBUG_RMOBILE_SCIFA4
740                 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
741                 depends on ARCH_SH73A0
742                 help
743                   Say Y here if you want kernel low-level debugging support
744                   via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
745 
746         config DEBUG_S3C_UART0
747                 depends on PLAT_SAMSUNG
748                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
749                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
750                 select DEBUG_S5PV210_UART if ARCH_S5PV210
751                 bool "Use Samsung S3C UART 0 for low-level debug"
752                 help
753                   Say Y here if you want the debug print routines to direct
754                   their output to UART 0. The port must have been initialised
755                   by the boot-loader before use.
756 
757         config DEBUG_S3C_UART1
758                 depends on PLAT_SAMSUNG
759                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
760                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
761                 select DEBUG_S5PV210_UART if ARCH_S5PV210
762                 bool "Use Samsung S3C UART 1 for low-level debug"
763                 help
764                   Say Y here if you want the debug print routines to direct
765                   their output to UART 1. The port must have been initialised
766                   by the boot-loader before use.
767 
768         config DEBUG_S3C_UART2
769                 depends on PLAT_SAMSUNG
770                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
771                 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
772                 select DEBUG_S5PV210_UART if ARCH_S5PV210
773                 bool "Use Samsung S3C UART 2 for low-level debug"
774                 help
775                   Say Y here if you want the debug print routines to direct
776                   their output to UART 2. The port must have been initialised
777                   by the boot-loader before use.
778 
779         config DEBUG_S3C_UART3
780                 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
781                 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
782                 select DEBUG_S5PV210_UART if ARCH_S5PV210
783                 bool "Use Samsung S3C UART 3 for low-level debug"
784                 help
785                   Say Y here if you want the debug print routines to direct
786                   their output to UART 3. The port must have been initialised
787                   by the boot-loader before use.
788 
789         config DEBUG_S3C2410_UART0
790                 depends on ARCH_S3C24XX
791                 select DEBUG_S3C2410_UART
792                 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
793                 help
794                   Say Y here if you want the debug print routines to direct
795                   their output to UART 0. The port must have been initialised
796                   by the boot-loader before use.
797 
798         config DEBUG_S3C2410_UART1
799                 depends on ARCH_S3C24XX
800                 select DEBUG_S3C2410_UART
801                 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
802                 help
803                   Say Y here if you want the debug print routines to direct
804                   their output to UART 1. The port must have been initialised
805                   by the boot-loader before use.
806 
807         config DEBUG_S3C2410_UART2
808                 depends on ARCH_S3C24XX
809                 select DEBUG_S3C2410_UART
810                 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
811                 help
812                   Say Y here if you want the debug print routines to direct
813                   their output to UART 2. The port must have been initialised
814                   by the boot-loader before use.
815 
816         config DEBUG_SA1100
817                 depends on ARCH_SA1100
818                 bool "Use SA1100 UARTs for low-level debug"
819                 help
820                   Say Y here if you want kernel low-level debugging support
821                   on SA-11x0 UART ports. The kernel will check for the first
822                   enabled UART in a sequence 3-1-2.
823 
824         config DEBUG_SOCFPGA_UART
825                 depends on ARCH_SOCFPGA
826                 bool "Use SOCFPGA UART for low-level debug"
827                 select DEBUG_UART_8250
828                 help
829                   Say Y here if you want kernel low-level debugging support
830                   on SOCFPGA based platforms.
831 
832         config DEBUG_SUN9I_UART0
833                 bool "Kernel low-level debugging messages via sun9i UART0"
834                 depends on MACH_SUN9I
835                 select DEBUG_UART_8250
836                 help
837                   Say Y here if you want kernel low-level debugging support
838                   on Allwinner A80 based platforms on the UART0.
839 
840         config DEBUG_SUNXI_UART0
841                 bool "Kernel low-level debugging messages via sunXi UART0"
842                 depends on ARCH_SUNXI
843                 select DEBUG_UART_8250
844                 help
845                   Say Y here if you want kernel low-level debugging support
846                   on Allwinner A1X based platforms on the UART0.
847 
848         config DEBUG_SUNXI_UART1
849                 bool "Kernel low-level debugging messages via sunXi UART1"
850                 depends on ARCH_SUNXI
851                 select DEBUG_UART_8250
852                 help
853                   Say Y here if you want kernel low-level debugging support
854                   on Allwinner A1X based platforms on the UART1.
855 
856         config DEBUG_SUNXI_R_UART
857                 bool "Kernel low-level debugging messages via sunXi R_UART"
858                 depends on MACH_SUN6I || MACH_SUN8I
859                 select DEBUG_UART_8250
860                 help
861                   Say Y here if you want kernel low-level debugging support
862                   on Allwinner A31/A23 based platforms on the R_UART.
863 
864         config TEGRA_DEBUG_UART_AUTO_ODMDATA
865                 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
866                 depends on ARCH_TEGRA
867                 select DEBUG_TEGRA_UART
868                 help
869                   Automatically determines which UART to use for low-level
870                   debug based on the ODMDATA value. This value is part of
871                   the BCT, and is written to the boot memory device using
872                   nvflash, or other flashing tool.  When bits 19:18 are 3,
873                   then bits 17:15 indicate which UART to use; 0/1/2/3/4
874                   are UART A/B/C/D/E.
875 
876         config TEGRA_DEBUG_UARTA
877                 bool "Kernel low-level debugging messages via Tegra UART A"
878                 depends on ARCH_TEGRA
879                 select DEBUG_TEGRA_UART
880                 help
881                   Say Y here if you want kernel low-level debugging support
882                   on Tegra based platforms.
883 
884         config TEGRA_DEBUG_UARTB
885                 bool "Kernel low-level debugging messages via Tegra UART B"
886                 depends on ARCH_TEGRA
887                 select DEBUG_TEGRA_UART
888                 help
889                   Say Y here if you want kernel low-level debugging support
890                   on Tegra based platforms.
891 
892         config TEGRA_DEBUG_UARTC
893                 bool "Kernel low-level debugging messages via Tegra UART C"
894                 depends on ARCH_TEGRA
895                 select DEBUG_TEGRA_UART
896                 help
897                   Say Y here if you want kernel low-level debugging support
898                   on Tegra based platforms.
899 
900         config TEGRA_DEBUG_UARTD
901                 bool "Kernel low-level debugging messages via Tegra UART D"
902                 depends on ARCH_TEGRA
903                 select DEBUG_TEGRA_UART
904                 help
905                   Say Y here if you want kernel low-level debugging support
906                   on Tegra based platforms.
907 
908         config TEGRA_DEBUG_UARTE
909                 bool "Kernel low-level debugging messages via Tegra UART E"
910                 depends on ARCH_TEGRA
911                 select DEBUG_TEGRA_UART
912                 help
913                   Say Y here if you want kernel low-level debugging support
914                   on Tegra based platforms.
915 
916         config DEBUG_SIRFPRIMA2_UART1
917                 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
918                 depends on ARCH_PRIMA2
919                 help
920                   Say Y here if you want the debug print routines to direct
921                   their output to the uart1 port on SiRFprimaII devices.
922 
923         config DEBUG_SIRFMARCO_UART1
924                 bool "Kernel low-level debugging messages via SiRFmarco UART1"
925                 depends on ARCH_MARCO
926                 help
927                   Say Y here if you want the debug print routines to direct
928                   their output to the uart1 port on SiRFmarco devices.
929 
930         config STIH41X_DEBUG_ASC2
931                 bool "Use StiH415/416 ASC2 UART for low-level debug"
932                 depends on ARCH_STI
933                 select DEBUG_STI_UART
934                 help
935                   Say Y here if you want kernel low-level debugging support
936                   on STiH415/416 based platforms like b2000, which has
937                   default UART wired up to ASC2.
938 
939                   If unsure, say N.
940 
941         config STIH41X_DEBUG_SBC_ASC1
942                 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
943                 depends on ARCH_STI
944                 select DEBUG_STI_UART
945                 help
946                   Say Y here if you want kernel low-level debugging support
947                   on STiH415/416 based platforms like b2020. which has
948                   default UART wired up to SBC ASC1.
949 
950                   If unsure, say N.
951 
952         config DEBUG_U300_UART
953                 bool "Kernel low-level debugging messages via U300 UART0"
954                 depends on ARCH_U300
955                 select DEBUG_UART_PL01X
956                 help
957                   Say Y here if you want the debug print routines to direct
958                   their output to the uart port on U300 devices.
959 
960         config DEBUG_UX500_UART
961                 depends on ARCH_U8500
962                 bool "Use Ux500 UART for low-level debug"
963                 help
964                   Say Y here if you want kernel low-level debugging support
965                   on Ux500 based platforms.
966 
967         config DEBUG_MT6589_UART0
968                 bool "Mediatek mt6589 UART0"
969                 depends on ARCH_MEDIATEK
970                 select DEBUG_UART_8250
971                 help
972                   Say Y here if you want kernel low-level debugging support
973                   for Mediatek mt6589 based platforms on UART0.
974 
975         config DEBUG_MT8127_UART0
976                 bool "Mediatek mt8127 UART0"
977                 depends on ARCH_MEDIATEK
978                 select DEBUG_UART_8250
979                 help
980                   Say Y here if you want kernel low-level debugging support
981                   for Mediatek mt8127 based platforms on UART0.
982 
983         config DEBUG_MT8135_UART3
984                 bool "Mediatek mt8135 UART3"
985                 depends on ARCH_MEDIATEK
986                 select DEBUG_UART_8250
987                 help
988                   Say Y here if you want kernel low-level debugging support
989                   for Mediatek mt8135 based platforms on UART3.
990 
991         config DEBUG_VEXPRESS_UART0_DETECT
992                 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
993                 depends on ARCH_VEXPRESS && CPU_CP15_MMU
994                 help
995                   This option enables a simple heuristic which tries to determine
996                   the motherboard's memory map variant (original or RS1) and then
997                   choose the relevant UART0 base address.
998 
999                   Note that this will only work with standard A-class core tiles,
1000                   and may fail with non-standard SMM or custom software models.
1001 
1002         config DEBUG_VEXPRESS_UART0_CA9
1003                 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1004                 depends on ARCH_VEXPRESS
1005                 select DEBUG_UART_PL01X
1006                 help
1007                   This option selects UART0 at 0x10009000. Except for custom models,
1008                   this applies only to the V2P-CA9 tile.
1009 
1010         config DEBUG_VEXPRESS_UART0_RS1
1011                 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1012                 depends on ARCH_VEXPRESS
1013                 select DEBUG_UART_PL01X
1014                 help
1015                   This option selects UART0 at 0x1c090000. This applies to most
1016                   of the tiles using the RS1 memory map, including all new A-class
1017                   core tiles, FPGA-based SMMs and software models.
1018 
1019         config DEBUG_VEXPRESS_UART0_CRX
1020                 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1021                 depends on ARCH_VEXPRESS && !MMU
1022                 select DEBUG_UART_PL01X
1023                 help
1024                   This option selects UART0 at 0xb0090000. This is appropriate for
1025                   Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1026 
1027         config DEBUG_VT8500_UART0
1028                 bool "Use UART0 on VIA/Wondermedia SoCs"
1029                 depends on ARCH_VT8500
1030                 help
1031                   This option selects UART0 on VIA/Wondermedia System-on-a-chip
1032                   devices, including VT8500, WM8505, WM8650 and WM8850.
1033 
1034         config DEBUG_LL_UART_NONE
1035                 bool "No low-level debugging UART"
1036                 depends on !ARCH_MULTIPLATFORM
1037                 help
1038                   Say Y here if your platform doesn't provide a UART option
1039                   above. This relies on your platform choosing the right UART
1040                   definition internally in order for low-level debugging to
1041                   work.
1042 
1043         config DEBUG_ICEDCC
1044                 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1045                 help
1046                   Say Y here if you want the debug print routines to direct
1047                   their output to the EmbeddedICE macrocell's DCC channel using
1048                   co-processor 14. This is known to work on the ARM9 style ICE
1049                   channel and on the XScale with the PEEDI.
1050 
1051                   Note that the system will appear to hang during boot if there
1052                   is nothing connected to read from the DCC.
1053 
1054         config DEBUG_SEMIHOSTING
1055                 bool "Kernel low-level debug output via semihosting I/O"
1056                 help
1057                   Semihosting enables code running on an ARM target to use
1058                   the I/O facilities on a host debugger/emulator through a
1059                   simple SVC call. The host debugger or emulator must have
1060                   semihosting enabled for the special svc call to be trapped
1061                   otherwise the kernel will crash.
1062 
1063                   This is known to work with OpenOCD, as well as
1064                   ARM's Fast Models, or any other controlling environment
1065                   that implements semihosting.
1066 
1067                   For more details about semihosting, please see
1068                   chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1069 
1070         config DEBUG_LL_UART_8250
1071                 bool "Kernel low-level debugging via 8250 UART"
1072                 help
1073                   Say Y here if you wish the debug print routes to direct
1074                   their output to an 8250 UART.  You can use this option
1075                   to provide the parameters for the 8250 UART rather than
1076                   selecting one of the platform specific options above if
1077                   you know the parameters for the port.
1078 
1079                   This option is preferred over the platform specific
1080                   options; the platform specific options are deprecated
1081                   and will be soon removed.
1082 
1083         config DEBUG_LL_UART_EFM32
1084                 bool "Kernel low-level debugging via efm32 UART"
1085                 depends on ARCH_EFM32
1086                 help
1087                   Say Y here if you want the debug print routines to direct
1088                   their output to an UART or USART port on efm32 based
1089                   machines. Use the following addresses for DEBUG_UART_PHYS:
1090 
1091                     0x4000c000 | USART0
1092                     0x4000c400 | USART1
1093                     0x4000c800 | USART2
1094                     0x4000e000 | UART0
1095                     0x4000e400 | UART1
1096 
1097         config DEBUG_LL_UART_PL01X
1098                 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1099                 help
1100                   Say Y here if you wish the debug print routes to direct
1101                   their output to a PL01x Primecell UART.  You can use
1102                   this option to provide the parameters for the UART
1103                   rather than selecting one of the platform specific
1104                   options above if you know the parameters for the port.
1105 
1106                   This option is preferred over the platform specific
1107                   options; the platform specific options are deprecated
1108                   and will be soon removed.
1109 
1110 endchoice
1111 
1112 config DEBUG_EXYNOS_UART
1113         bool
1114 
1115 config DEBUG_S3C2410_UART
1116         bool
1117         select DEBUG_S3C24XX_UART
1118 
1119 config DEBUG_S3C24XX_UART
1120         bool
1121 
1122 config DEBUG_S5PV210_UART
1123         bool
1124 
1125 config DEBUG_OMAP2PLUS_UART
1126         bool
1127         depends on ARCH_OMAP2PLUS
1128 
1129 config DEBUG_IMX_UART_PORT
1130         int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1131                                                 DEBUG_IMX25_UART || \
1132                                                 DEBUG_IMX21_IMX27_UART || \
1133                                                 DEBUG_IMX31_UART || \
1134                                                 DEBUG_IMX35_UART || \
1135                                                 DEBUG_IMX50_UART || \
1136                                                 DEBUG_IMX51_UART || \
1137                                                 DEBUG_IMX53_UART || \
1138                                                 DEBUG_IMX6Q_UART || \
1139                                                 DEBUG_IMX6SL_UART || \
1140                                                 DEBUG_IMX6SX_UART
1141         default 1
1142         depends on ARCH_MXC
1143         help
1144           Choose UART port on which kernel low-level debug messages
1145           should be output.
1146 
1147 config DEBUG_VF_UART_PORT
1148         int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1149         default 1
1150         range 0 3
1151         depends on SOC_VF610
1152         help
1153           Choose UART port on which kernel low-level debug messages
1154           should be output.
1155 
1156 config DEBUG_TEGRA_UART
1157         bool
1158         depends on ARCH_TEGRA
1159 
1160 config DEBUG_STI_UART
1161         bool
1162         depends on ARCH_STI
1163 
1164 config DEBUG_LL_INCLUDE
1165         string
1166         default "debug/sa1100.S" if DEBUG_SA1100
1167         default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1168         default "debug/asm9260.S" if DEBUG_ASM9260_UART
1169         default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1170         default "debug/meson.S" if DEBUG_MESON_UARTAO
1171         default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1172         default "debug/exynos.S" if DEBUG_EXYNOS_UART
1173         default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1174         default "debug/icedcc.S" if DEBUG_ICEDCC
1175         default "debug/imx.S" if DEBUG_IMX1_UART || \
1176                                  DEBUG_IMX25_UART || \
1177                                  DEBUG_IMX21_IMX27_UART || \
1178                                  DEBUG_IMX31_UART || \
1179                                  DEBUG_IMX35_UART || \
1180                                  DEBUG_IMX50_UART || \
1181                                  DEBUG_IMX51_UART || \
1182                                  DEBUG_IMX53_UART ||\
1183                                  DEBUG_IMX6Q_UART || \
1184                                  DEBUG_IMX6SL_UART || \
1185                                  DEBUG_IMX6SX_UART
1186         default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1187         default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1188         default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1189         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1190         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1191         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1192         default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1193         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1194         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1195         default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1196         default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1197         default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1198         default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1199         default "debug/sti.S" if DEBUG_STI_UART
1200         default "debug/tegra.S" if DEBUG_TEGRA_UART
1201         default "debug/ux500.S" if DEBUG_UX500_UART
1202         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1203         default "debug/vf.S" if DEBUG_VF_UART
1204         default "debug/vt8500.S" if DEBUG_VT8500_UART0
1205         default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1206         default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1207         default "mach/debug-macro.S"
1208 
1209 # Compatibility options for PL01x
1210 config DEBUG_UART_PL01X
1211         def_bool ARCH_EP93XX || \
1212                 ARCH_INTEGRATOR || \
1213                 ARCH_SPEAR3XX || \
1214                 ARCH_SPEAR6XX || \
1215                 ARCH_SPEAR13XX || \
1216                 ARCH_VERSATILE
1217 
1218 # Compatibility options for 8250
1219 config DEBUG_UART_8250
1220         def_bool ARCH_DOVE || ARCH_EBSA110 || \
1221                 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1222                 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1223                 ARCH_IOP33X || ARCH_IXP4XX || \
1224                 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1225 
1226 # Compatibility options for BCM63xx
1227 config DEBUG_UART_BCM63XX
1228         def_bool ARCH_BCM_63XX
1229 
1230 config DEBUG_UART_PHYS
1231         hex "Physical base address of debug UART"
1232         default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1233         default 0x01c28000 if DEBUG_SUNXI_UART0
1234         default 0x01c28400 if DEBUG_SUNXI_UART1
1235         default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1236         default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1237         default 0x01f02800 if DEBUG_SUNXI_R_UART
1238         default 0x02530c00 if DEBUG_KEYSTONE_UART0
1239         default 0x02531000 if DEBUG_KEYSTONE_UART1
1240         default 0x03010fe0 if ARCH_RPC
1241         default 0x07000000 if DEBUG_SUN9I_UART0
1242         default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1243                                 DEBUG_VEXPRESS_UART0_CA9
1244         default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1245         default 0x10124000 if DEBUG_RK3X_UART0
1246         default 0x10126000 if DEBUG_RK3X_UART1
1247         default 0x101f1000 if ARCH_VERSATILE
1248         default 0x101fb000 if DEBUG_NOMADIK_UART
1249         default 0x11002000 if DEBUG_MT8127_UART0
1250         default 0x11006000 if DEBUG_MT6589_UART0
1251         default 0x11009000 if DEBUG_MT8135_UART3
1252         default 0x16000000 if ARCH_INTEGRATOR
1253         default 0x18000300 if DEBUG_BCM_5301X
1254         default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1255         default 0x20060000 if DEBUG_RK29_UART0
1256         default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1257         default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1258         default 0x20201000 if DEBUG_BCM2835
1259         default 0x3e000000 if DEBUG_BCM_KONA_UART
1260         default 0x4000e400 if DEBUG_LL_UART_EFM32
1261         default 0x40090000 if ARCH_LPC32XX
1262         default 0x40100000 if DEBUG_PXA_UART1
1263         default 0x42000000 if ARCH_GEMINI
1264         default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1265                                 DEBUG_S3C2410_UART0)
1266         default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1267                                 DEBUG_S3C2410_UART1)
1268         default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1269                                 DEBUG_S3C2410_UART2)
1270         default 0x78000000 if DEBUG_CNS3XXX
1271         default 0x7c0003f8 if FOOTBRIDGE
1272         default 0x78000000 if DEBUG_CNS3XXX
1273         default 0x80010000 if DEBUG_ASM9260_UART
1274         default 0x80070000 if DEBUG_IMX23_UART
1275         default 0x80074000 if DEBUG_IMX28_UART
1276         default 0x80230000 if DEBUG_PICOXCELL_UART
1277         default 0x808c0000 if ARCH_EP93XX
1278         default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1279         default 0xa9a00000 if DEBUG_MSM_UART
1280         default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1281         default 0xc0013000 if DEBUG_U300_UART
1282         default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1283         default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1284         default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1285         default 0xd0012000 if DEBUG_MVEBU_UART
1286         default 0xc81004c0 if DEBUG_MESON_UARTAO
1287         default 0xd4017000 if DEBUG_MMP_UART2
1288         default 0xd4018000 if DEBUG_MMP_UART3
1289         default 0xe0000000 if ARCH_SPEAR13XX
1290         default 0xe4007000 if DEBUG_HIP04_UART
1291         default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1292         default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1293         default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1294         default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1295         default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1296         default 0xe8008000 if DEBUG_R7S72100_SCIF2
1297         default 0xf0000be0 if ARCH_EBSA110
1298         default 0xf040ab00 if DEBUG_BRCMSTB_UART
1299         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1300         default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1301                                 ARCH_ORION5X
1302         default 0xf7fc9000 if DEBUG_BERLIN_UART
1303         default 0xf8b00000 if DEBUG_HIX5HD2_UART
1304         default 0xf991e000 if DEBUG_QCOM_UARTDM
1305         default 0xfcb00000 if DEBUG_HI3620_UART
1306         default 0xfe800000 if ARCH_IOP32X
1307         default 0xff690000 if DEBUG_RK32_UART2
1308         default 0xffc02000 if DEBUG_SOCFPGA_UART
1309         default 0xffd82340 if ARCH_IOP13XX
1310         default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1311         default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1312         default 0xfff36000 if DEBUG_HIGHBANK_UART
1313         default 0xfffe8600 if DEBUG_UART_BCM63XX
1314         default 0xfffff700 if ARCH_IOP33X
1315         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1316                 DEBUG_LL_UART_EFM32 || \
1317                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1318                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1319                 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1320                 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1321                 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1322                 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1323                 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1324 
1325 config DEBUG_UART_VIRT
1326         hex "Virtual base address of debug UART"
1327         default 0xe0010fe0 if ARCH_RPC
1328         default 0xe1000000 if DEBUG_MSM_UART
1329         default 0xf0000be0 if ARCH_EBSA110
1330         default 0xf0010000 if DEBUG_ASM9260_UART
1331         default 0xf01fb000 if DEBUG_NOMADIK_UART
1332         default 0xf0201000 if DEBUG_BCM2835
1333         default 0xf1000300 if DEBUG_BCM_5301X
1334         default 0xf1002000 if DEBUG_MT8127_UART0
1335         default 0xf1006000 if DEBUG_MT6589_UART0
1336         default 0xf1009000 if DEBUG_MT8135_UART3
1337         default 0xf11f1000 if ARCH_VERSATILE
1338         default 0xf1600000 if ARCH_INTEGRATOR
1339         default 0xf1c28000 if DEBUG_SUNXI_UART0
1340         default 0xf1c28400 if DEBUG_SUNXI_UART1
1341         default 0xf1f02800 if DEBUG_SUNXI_R_UART
1342         default 0xf6200000 if DEBUG_PXA_UART1
1343         default 0xf4090000 if ARCH_LPC32XX
1344         default 0xf4200000 if ARCH_GEMINI
1345         default 0xf7000000 if DEBUG_SUN9I_UART0
1346         default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1347                                 DEBUG_S3C2410_UART0)
1348         default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1349                                 DEBUG_S3C2410_UART1)
1350         default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1351                                 DEBUG_S3C2410_UART2)
1352         default 0xf7fc9000 if DEBUG_BERLIN_UART
1353         default 0xf8007000 if DEBUG_HIP04_UART
1354         default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1355         default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1356         default 0xfa71e000 if DEBUG_QCOM_UARTDM
1357         default 0xfb002000 if DEBUG_CNS3XXX
1358         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1359         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1360         default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1361         default 0xfcfe8600 if DEBUG_UART_BCM63XX
1362         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1363         default 0xfd000000 if ARCH_SPEAR13XX
1364         default 0xfd012000 if ARCH_MV78XX0
1365         default 0xfde12000 if ARCH_DOVE
1366         default 0xfe012000 if ARCH_ORION5X
1367         default 0xf31004c0 if DEBUG_MESON_UARTAO
1368         default 0xfe017000 if DEBUG_MMP_UART2
1369         default 0xfe018000 if DEBUG_MMP_UART3
1370         default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1371         default 0xfe230000 if DEBUG_PICOXCELL_UART
1372         default 0xfe300000 if DEBUG_BCM_KONA_UART
1373         default 0xfe800000 if ARCH_IOP32X
1374         default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1375         default 0xfeb24000 if DEBUG_RK3X_UART0
1376         default 0xfeb26000 if DEBUG_RK3X_UART1
1377         default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1378         default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1379         default 0xfec02000 if DEBUG_SOCFPGA_UART
1380         default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1381         default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1382         default 0xfec90000 if DEBUG_RK32_UART2
1383         default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1384         default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1385         default 0xfed60000 if DEBUG_RK29_UART0
1386         default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1387         default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1388         default 0xfedc0000 if ARCH_EP93XX
1389         default 0xfee003f8 if FOOTBRIDGE
1390         default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1391         default 0xfee82340 if ARCH_IOP13XX
1392         default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1393         default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1394         default 0xfef36000 if DEBUG_HIGHBANK_UART
1395         default 0xfefff700 if ARCH_IOP33X
1396         default 0xff003000 if DEBUG_U300_UART
1397         default DEBUG_UART_PHYS if !MMU
1398         depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1399                 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1400                 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1401                 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1402 
1403 config DEBUG_UART_8250_SHIFT
1404         int "Register offset shift for the 8250 debug UART"
1405         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1406         default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1407         default 2
1408 
1409 config DEBUG_UART_8250_WORD
1410         bool "Use 32-bit accesses for 8250 UART"
1411         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1412         depends on DEBUG_UART_8250_SHIFT >= 2
1413         default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1414                 ARCH_KEYSTONE || \
1415                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1416                 DEBUG_DAVINCI_DA8XX_UART2 || \
1417                 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1418                 DEBUG_BRCMSTB_UART
1419 
1420 config DEBUG_UART_8250_FLOW_CONTROL
1421         bool "Enable flow control for 8250 UART"
1422         depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1423         default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1424 
1425 config DEBUG_UNCOMPRESS
1426         bool
1427         depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1428         default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1429                      (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1430         help
1431           This option influences the normal decompressor output for
1432           multiplatform kernels.  Normally, multiplatform kernels disable
1433           decompressor output because it is not possible to know where to
1434           send the decompressor output.
1435 
1436           When this option is set, the selected DEBUG_LL output method
1437           will be re-used for normal decompressor output on multiplatform
1438           kernels.
1439           
1440 
1441 config UNCOMPRESS_INCLUDE
1442         string
1443         default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1444                                         PLAT_SAMSUNG || ARCH_EFM32
1445         default "mach/uncompress.h"
1446 
1447 config EARLY_PRINTK
1448         bool "Early printk"
1449         depends on DEBUG_LL
1450         help
1451           Say Y here if you want to have an early console using the
1452           kernel low-level debugging functions. Add earlyprintk to your
1453           kernel parameters to enable this console.
1454 
1455 config ARM_KPROBES_TEST
1456         tristate "Kprobes test module"
1457         depends on KPROBES && MODULES
1458         help
1459           Perform tests of kprobes API and instruction set simulation.
1460 
1461 config PID_IN_CONTEXTIDR
1462         bool "Write the current PID to the CONTEXTIDR register"
1463         depends on CPU_COPY_V6
1464         help
1465           Enabling this option causes the kernel to write the current PID to
1466           the PROCID field of the CONTEXTIDR register, at the expense of some
1467           additional instructions during context switch. Say Y here only if you
1468           are planning to use hardware trace tools with this kernel.
1469 
1470 config DEBUG_SET_MODULE_RONX
1471         bool "Set loadable kernel module data as NX and text as RO"
1472         depends on MODULES
1473         ---help---
1474           This option helps catch unintended modifications to loadable
1475           kernel module's text and read-only data. It also prevents execution
1476           of module data. Such protection may interfere with run-time code
1477           patching and dynamic kernel tracing - and they might also protect
1478           against certain classes of kernel exploits.
1479           If in doubt, say "N".
1480 
1481 menuconfig CORESIGHT
1482         bool "CoreSight Tracing Support"
1483         select ARM_AMBA
1484         help
1485           This framework provides a kernel interface for the CoreSight debug
1486           and trace drivers to register themselves with. It's intended to build
1487           a topological view of the CoreSight components based on a DT
1488           specification and configure the right serie of components when a
1489           trace source gets enabled.
1490 
1491 if CORESIGHT
1492 config CORESIGHT_LINKS_AND_SINKS
1493         bool "CoreSight Link and Sink drivers"
1494         help
1495           This enables support for CoreSight link and sink drivers that are
1496           responsible for transporting and collecting the trace data
1497           respectively.  Link and sinks are dynamically aggregated with a trace
1498           entity at run time to form a complete trace path.
1499 
1500 config CORESIGHT_LINK_AND_SINK_TMC
1501         bool "Coresight generic TMC driver"
1502         depends on CORESIGHT_LINKS_AND_SINKS
1503         help
1504           This enables support for the Trace Memory Controller driver.  Depending
1505           on its configuration the device can act as a link (embedded trace router
1506           - ETR) or sink (embedded trace FIFO).  The driver complies with the
1507           generic implementation of the component without special enhancement or
1508           added features.
1509 
1510 config CORESIGHT_SINK_TPIU
1511         bool "Coresight generic TPIU driver"
1512         depends on CORESIGHT_LINKS_AND_SINKS
1513         help
1514           This enables support for the Trace Port Interface Unit driver, responsible
1515           for bridging the gap between the on-chip coresight components and a trace
1516           port collection engine, typically connected to an external host for use
1517           case capturing more traces than the on-board coresight memory can handle.
1518 
1519 config CORESIGHT_SINK_ETBV10
1520         bool "Coresight ETBv1.0 driver"
1521         depends on CORESIGHT_LINKS_AND_SINKS
1522         help
1523           This enables support for the Embedded Trace Buffer version 1.0 driver
1524           that complies with the generic implementation of the component without
1525           special enhancement or added features.
1526 
1527 config CORESIGHT_SOURCE_ETM3X
1528         bool "CoreSight Embedded Trace Macrocell 3.x driver"
1529         select CORESIGHT_LINKS_AND_SINKS
1530         help
1531           This driver provides support for processor ETM3.x and PTM1.x modules,
1532           which allows tracing the instructions that a processor is executing
1533           This is primarily useful for instruction level tracing.  Depending
1534           the ETM version data tracing may also be available.
1535 endif
1536 endmenu

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