3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
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
18 bool "Filter access to /dev/mem"
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.
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
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 ;).
37 depends on !THUMB2_KERNEL
38 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
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.
46 bool "Enable stack unwinding support (EXPERIMENTAL)"
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.
58 depends on FUNCTION_TRACER && FRAME_POINTER
62 bool "Verbose user fault messages"
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.
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:
72 1 - undefined instruction events
74 4 - invalid data aborts
78 # These options are only for real kernel hackers who want to get their hands dirty.
80 bool "Kernel low-level debugging functions (read help!)"
81 depends on DEBUG_KERNEL
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.
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.
93 prompt "Kernel low-level debugging port"
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
100 config AT91_DEBUG_LL_DBGU1
101 bool "Kernel low-level debugging on 9263 and 9g45"
102 depends on HAVE_AT91_DBGU1
104 config AT91_DEBUG_LL_DBGU2
105 bool "Kernel low-level debugging on sama5d4"
106 depends on HAVE_AT91_DBGU2
109 bool "Kernel low-level debugging on BCM2835 PL011 UART"
110 depends on ARCH_BCM2835
111 select DEBUG_UART_PL01X
113 config DEBUG_BCM_5301X
114 bool "Kernel low-level debugging on BCM5301X UART1"
115 depends on ARCH_BCM_5301X
116 select DEBUG_UART_PL01X
118 config DEBUG_BCM_KONA_UART
119 bool "Kernel low-level debugging messages via BCM KONA UART"
120 depends on ARCH_BCM_MOBILE
121 select DEBUG_UART_8250
123 Say Y here if you want kernel low-level debugging support
124 on Broadcom SoC platforms.
125 This low level debug works for Broadcom
126 mobile SoCs in the Kona family of chips (e.g. bcm28155,
130 bool "Kernel low-level debugging on BCM63XX UART"
131 depends on ARCH_BCM_63XX
132 select DEBUG_UART_BCM63XX
134 config DEBUG_BERLIN_UART
135 bool "Marvell Berlin SoC Debug UART"
136 depends on ARCH_BERLIN
137 select DEBUG_UART_8250
139 Say Y here if you want kernel low-level debugging support
140 on Marvell Berlin SoC based platforms.
142 config DEBUG_CLPS711X_UART1
143 bool "Kernel low-level debugging messages via UART1"
144 depends on ARCH_CLPS711X
146 Say Y here if you want the debug print routines to direct
147 their output to the first serial port on these devices.
149 config DEBUG_CLPS711X_UART2
150 bool "Kernel low-level debugging messages via UART2"
151 depends on ARCH_CLPS711X
153 Say Y here if you want the debug print routines to direct
154 their output to the second serial port on these devices.
157 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
158 depends on ARCH_CNS3XXX
159 select DEBUG_UART_8250
161 Say Y here if you want the debug print routines to direct
162 their output to the CNS3xxx UART0.
164 config DEBUG_DAVINCI_DA8XX_UART1
165 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
166 depends on ARCH_DAVINCI_DA8XX
167 select DEBUG_UART_8250
169 Say Y here if you want the debug print routines to direct
170 their output to UART1 serial port on DaVinci DA8XX devices.
172 config DEBUG_DAVINCI_DA8XX_UART2
173 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
174 depends on ARCH_DAVINCI_DA8XX
175 select DEBUG_UART_8250
177 Say Y here if you want the debug print routines to direct
178 their output to UART2 serial port on DaVinci DA8XX devices.
180 config DEBUG_DAVINCI_DMx_UART0
181 bool "Kernel low-level debugging on DaVinci DMx using UART0"
182 depends on ARCH_DAVINCI_DMx
183 select DEBUG_UART_8250
185 Say Y here if you want the debug print routines to direct
186 their output to UART0 serial port on DaVinci DMx devices.
188 config DEBUG_ZYNQ_UART0
189 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
192 Say Y here if you want the debug print routines to direct
193 their output to UART0 on the Zynq platform.
195 config DEBUG_ZYNQ_UART1
196 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
199 Say Y here if you want the debug print routines to direct
200 their output to UART1 on the Zynq platform.
202 If you have a ZC702 board and want early boot messages to
203 appear on the USB serial adaptor, select this option.
205 config DEBUG_DC21285_PORT
206 bool "Kernel low-level debugging messages via footbridge serial port"
207 depends on FOOTBRIDGE
209 Say Y here if you want the debug print routines to direct
210 their output to the serial port in the DC21285 (Footbridge).
212 config DEBUG_FOOTBRIDGE_COM1
213 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
214 depends on FOOTBRIDGE
216 Say Y here if you want the debug print routines to direct
217 their output to the 8250 at PCI COM1.
219 config DEBUG_HI3620_UART
220 bool "Hisilicon HI3620 Debug UART"
221 depends on ARCH_HI3xxx
222 select DEBUG_UART_PL01X
224 Say Y here if you want kernel low-level debugging support
227 config DEBUG_HI3716_UART
228 bool "Hisilicon Hi3716 Debug UART"
229 depends on ARCH_HI3xxx
230 select DEBUG_UART_PL01X
232 Say Y here if you want kernel low-level debugging support
235 config DEBUG_HIGHBANK_UART
236 bool "Kernel low-level debugging messages via Highbank UART"
237 depends on ARCH_HIGHBANK
238 select DEBUG_UART_PL01X
240 Say Y here if you want the debug print routines to direct
241 their output to the UART on Highbank based devices.
243 config DEBUG_HIP04_UART
244 bool "Hisilicon HiP04 Debug UART"
245 depends on ARCH_HIP04
246 select DEBUG_UART_8250
248 Say Y here if you want kernel low-level debugging support
251 config DEBUG_HIX5HD2_UART
252 bool "Hisilicon Hix5hd2 Debug UART"
253 depends on ARCH_HIX5HD2
254 select DEBUG_UART_PL01X
256 Say Y here if you want kernel low-level debugging support
259 config DEBUG_IMX1_UART
260 bool "i.MX1 Debug UART"
263 Say Y here if you want kernel low-level debugging support
266 config DEBUG_IMX23_UART
267 bool "i.MX23 Debug UART"
269 select DEBUG_UART_PL01X
271 Say Y here if you want kernel low-level debugging support
274 config DEBUG_IMX25_UART
275 bool "i.MX25 Debug UART"
278 Say Y here if you want kernel low-level debugging support
281 config DEBUG_IMX21_IMX27_UART
282 bool "i.MX21 and i.MX27 Debug UART"
283 depends on SOC_IMX21 || SOC_IMX27
285 Say Y here if you want kernel low-level debugging support
288 config DEBUG_IMX28_UART
289 bool "i.MX28 Debug UART"
291 select DEBUG_UART_PL01X
293 Say Y here if you want kernel low-level debugging support
296 config DEBUG_IMX31_UART
297 bool "i.MX31 Debug UART"
300 Say Y here if you want kernel low-level debugging support
303 config DEBUG_IMX35_UART
304 bool "i.MX35 Debug UART"
307 Say Y here if you want kernel low-level debugging support
310 config DEBUG_IMX50_UART
311 bool "i.MX50 Debug UART"
314 Say Y here if you want kernel low-level debugging support
317 config DEBUG_IMX51_UART
318 bool "i.MX51 Debug UART"
321 Say Y here if you want kernel low-level debugging support
324 config DEBUG_IMX53_UART
325 bool "i.MX53 Debug UART"
328 Say Y here if you want kernel low-level debugging support
331 config DEBUG_IMX6Q_UART
332 bool "i.MX6Q/DL Debug UART"
335 Say Y here if you want kernel low-level debugging support
338 config DEBUG_IMX6SL_UART
339 bool "i.MX6SL Debug UART"
340 depends on SOC_IMX6SL
342 Say Y here if you want kernel low-level debugging support
345 config DEBUG_IMX6SX_UART
346 bool "i.MX6SX Debug UART"
347 depends on SOC_IMX6SX
349 Say Y here if you want kernel low-level debugging support
352 config DEBUG_KEYSTONE_UART0
353 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
354 depends on ARCH_KEYSTONE
355 select DEBUG_UART_8250
357 Say Y here if you want the debug print routines to direct
358 their output to UART0 serial port on KEYSTONE2 devices.
360 config DEBUG_KEYSTONE_UART1
361 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
362 depends on ARCH_KEYSTONE
363 select DEBUG_UART_8250
365 Say Y here if you want the debug print routines to direct
366 their output to UART1 serial port on KEYSTONE2 devices.
368 config DEBUG_MESON_UARTAO
369 bool "Kernel low-level debugging via Meson6 UARTAO"
370 depends on ARCH_MESON
372 Say Y here if you want kernel low-lever debugging support
373 on Amlogic Meson6 based platforms on the UARTAO.
375 config DEBUG_MMP_UART2
376 bool "Kernel low-level debugging message via MMP UART2"
378 select DEBUG_UART_8250
380 Say Y here if you want kernel low-level debugging support
383 config DEBUG_MMP_UART3
384 bool "Kernel low-level debugging message via MMP UART3"
386 select DEBUG_UART_8250
388 Say Y here if you want kernel low-level debugging support
391 config DEBUG_MSM_UART
392 bool "Kernel low-level debugging messages via MSM UART"
395 Say Y here if you want the debug print routines to direct
396 their output to the serial port on MSM devices.
398 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
399 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
400 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
401 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
403 MSM7X30 0xaca00000 0xe1000000 UART1
404 MSM7X30 0xacb00000 0xe1000000 UART2
405 MSM7X30 0xacc00000 0xe1000000 UART3
407 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
408 options based on your needs.
410 config DEBUG_QCOM_UARTDM
411 bool "Kernel low-level debugging messages via QCOM UARTDM"
414 Say Y here if you want the debug print routines to direct
415 their output to the serial port on Qualcomm devices.
417 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
418 APQ8084 0xf995e000 0xfa75e000
419 MSM8X60 0x19c40000 0xf0040000
420 MSM8960 0x16440000 0xf0040000
421 MSM8974 0xf991e000 0xfa71e000
423 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
424 options based on your needs.
426 config DEBUG_MVEBU_UART
427 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
428 depends on ARCH_MVEBU
429 select DEBUG_UART_8250
431 Say Y here if you want kernel low-level debugging support
432 on MVEBU based platforms.
434 This option should be used with the old bootloaders
435 that left the internal registers mapped at
436 0xd0000000. As of today, this is the case on
437 platforms such as the Globalscale Mirabox or the
438 Plathome OpenBlocks AX3, when using the original
441 If the wrong DEBUG_MVEBU_UART* option is selected,
442 when u-boot hands over to the kernel, the system
443 silently crashes, with no serial output at all.
445 config DEBUG_MVEBU_UART_ALTERNATE
446 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
447 depends on ARCH_MVEBU
448 select DEBUG_UART_8250
450 Say Y here if you want kernel low-level debugging support
451 on MVEBU based platforms.
453 This option should be used with the new bootloaders
454 that remap the internal registers at 0xf1000000.
456 If the wrong DEBUG_MVEBU_UART* option is selected,
457 when u-boot hands over to the kernel, the system
458 silently crashes, with no serial output at all.
464 Say Y here if you want kernel low-level debugging support
465 on Vybrid based platforms.
467 config DEBUG_NOMADIK_UART
468 bool "Kernel low-level debugging messages via NOMADIK UART"
469 depends on ARCH_NOMADIK
470 select DEBUG_UART_PL01X
472 Say Y here if you want kernel low-level debugging support
473 on NOMADIK based platforms.
475 config DEBUG_NSPIRE_CLASSIC_UART
476 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
477 depends on ARCH_NSPIRE
478 select DEBUG_UART_8250
480 Say Y here if you want kernel low-level debugging support
481 on TI-NSPIRE classic models.
483 config DEBUG_NSPIRE_CX_UART
484 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
485 depends on ARCH_NSPIRE
486 select DEBUG_UART_PL01X
488 Say Y here if you want kernel low-level debugging support
489 on TI-NSPIRE CX models.
491 config DEBUG_OMAP2UART1
492 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
493 depends on ARCH_OMAP2PLUS
494 select DEBUG_OMAP2PLUS_UART
496 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
497 omap3 torpedo and 3530 lv som.
499 config DEBUG_OMAP2UART2
500 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
501 depends on ARCH_OMAP2PLUS
502 select DEBUG_OMAP2PLUS_UART
504 config DEBUG_OMAP2UART3
505 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
506 depends on ARCH_OMAP2PLUS
507 select DEBUG_OMAP2PLUS_UART
509 config DEBUG_OMAP3UART3
510 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
511 depends on ARCH_OMAP2PLUS
512 select DEBUG_OMAP2PLUS_UART
514 This covers at least cm_t3x, beagle, crane, devkit8000,
515 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
518 config DEBUG_OMAP4UART3
519 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
520 depends on ARCH_OMAP2PLUS
521 select DEBUG_OMAP2PLUS_UART
523 config DEBUG_OMAP3UART4
524 bool "Kernel low-level debugging messages via OMAP36XX UART4"
525 depends on ARCH_OMAP2PLUS
526 select DEBUG_OMAP2PLUS_UART
528 config DEBUG_OMAP4UART4
529 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
530 depends on ARCH_OMAP2PLUS
531 select DEBUG_OMAP2PLUS_UART
533 config DEBUG_TI81XXUART1
534 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
535 depends on ARCH_OMAP2PLUS
536 select DEBUG_OMAP2PLUS_UART
538 config DEBUG_TI81XXUART2
539 bool "Kernel low-level debugging messages via TI81XX UART2"
540 depends on ARCH_OMAP2PLUS
541 select DEBUG_OMAP2PLUS_UART
543 config DEBUG_TI81XXUART3
544 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
545 depends on ARCH_OMAP2PLUS
546 select DEBUG_OMAP2PLUS_UART
548 config DEBUG_AM33XXUART1
549 bool "Kernel low-level debugging messages via AM33XX UART1"
550 depends on ARCH_OMAP2PLUS
551 select DEBUG_OMAP2PLUS_UART
553 config DEBUG_ZOOM_UART
554 bool "Kernel low-level debugging messages via Zoom2/3 UART"
555 depends on ARCH_OMAP2PLUS
556 select DEBUG_OMAP2PLUS_UART
558 config DEBUG_PICOXCELL_UART
559 depends on ARCH_PICOXCELL
560 bool "Use PicoXcell UART for low-level debug"
561 select DEBUG_UART_8250
563 Say Y here if you want kernel low-level debugging support
564 on PicoXcell based platforms.
566 config DEBUG_PXA_UART1
568 bool "Use PXA UART1 for low-level debug"
569 select DEBUG_UART_8250
571 Say Y here if you want kernel low-level debugging support
574 config DEBUG_REALVIEW_STD_PORT
575 bool "RealView Default UART"
576 depends on ARCH_REALVIEW
577 select DEBUG_UART_PL01X
579 Say Y here if you want the debug print routines to direct
580 their output to the serial port on RealView EB, PB11MP, PBA8
583 config DEBUG_REALVIEW_PB1176_PORT
584 bool "RealView PB1176 UART"
585 depends on MACH_REALVIEW_PB1176
586 select DEBUG_UART_PL01X
588 Say Y here if you want the debug print routines to direct
589 their output to the standard serial port on the RealView
592 config DEBUG_RK29_UART0
593 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
594 depends on ARCH_ROCKCHIP
595 select DEBUG_UART_8250
597 Say Y here if you want kernel low-level debugging support
598 on Rockchip based platforms.
600 config DEBUG_RK29_UART1
601 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
602 depends on ARCH_ROCKCHIP
603 select DEBUG_UART_8250
605 Say Y here if you want kernel low-level debugging support
606 on Rockchip based platforms.
608 config DEBUG_RK29_UART2
609 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
610 depends on ARCH_ROCKCHIP
611 select DEBUG_UART_8250
613 Say Y here if you want kernel low-level debugging support
614 on Rockchip based platforms.
616 config DEBUG_RK3X_UART0
617 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
618 depends on ARCH_ROCKCHIP
619 select DEBUG_UART_8250
621 Say Y here if you want kernel low-level debugging support
622 on Rockchip based platforms.
624 config DEBUG_RK3X_UART1
625 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
626 depends on ARCH_ROCKCHIP
627 select DEBUG_UART_8250
629 Say Y here if you want kernel low-level debugging support
630 on Rockchip based platforms.
632 config DEBUG_RK3X_UART2
633 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
634 depends on ARCH_ROCKCHIP
635 select DEBUG_UART_8250
637 Say Y here if you want kernel low-level debugging support
638 on Rockchip based platforms.
640 config DEBUG_RK3X_UART3
641 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
642 depends on ARCH_ROCKCHIP
643 select DEBUG_UART_8250
645 Say Y here if you want kernel low-level debugging support
646 on Rockchip based platforms.
648 config DEBUG_RK32_UART2
649 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
650 depends on ARCH_ROCKCHIP
651 select DEBUG_UART_8250
653 Say Y here if you want kernel low-level debugging support
654 on Rockchip RK32xx based platforms.
656 config DEBUG_R7S72100_SCIF2
657 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
658 depends on ARCH_R7S72100
660 Say Y here if you want kernel low-level debugging support
661 via SCIF2 on Renesas RZ/A1H (R7S72100).
663 config DEBUG_RCAR_GEN1_SCIF0
664 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
665 depends on ARCH_R8A7778
667 Say Y here if you want kernel low-level debugging support
668 via SCIF0 on Renesas R-Car M1A (R8A7778).
670 config DEBUG_RCAR_GEN1_SCIF2
671 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
672 depends on ARCH_R8A7779
674 Say Y here if you want kernel low-level debugging support
675 via SCIF2 on Renesas R-Car H1 (R8A7779).
677 config DEBUG_RCAR_GEN2_SCIF0
678 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
679 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
681 Say Y here if you want kernel low-level debugging support
682 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
685 config DEBUG_RCAR_GEN2_SCIF2
686 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
687 depends on ARCH_R8A7794
689 Say Y here if you want kernel low-level debugging support
690 via SCIF2 on Renesas R-Car E2 (R8A7794).
692 config DEBUG_RMOBILE_SCIFA0
693 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
694 depends on ARCH_R8A73A4 || ARCH_SH7372
696 Say Y here if you want kernel low-level debugging support
697 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
700 config DEBUG_RMOBILE_SCIFA1
701 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
702 depends on ARCH_R8A7740
704 Say Y here if you want kernel low-level debugging support
705 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
707 config DEBUG_RMOBILE_SCIFA4
708 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
709 depends on ARCH_SH73A0
711 Say Y here if you want kernel low-level debugging support
712 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
714 config DEBUG_S3C_UART0
715 depends on PLAT_SAMSUNG
716 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
717 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
718 select DEBUG_S5PV210_UART if ARCH_S5PV210
719 bool "Use Samsung S3C UART 0 for low-level debug"
721 Say Y here if you want the debug print routines to direct
722 their output to UART 0. The port must have been initialised
723 by the boot-loader before use.
725 config DEBUG_S3C_UART1
726 depends on PLAT_SAMSUNG
727 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
728 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
729 select DEBUG_S5PV210_UART if ARCH_S5PV210
730 bool "Use Samsung S3C UART 1 for low-level debug"
732 Say Y here if you want the debug print routines to direct
733 their output to UART 1. The port must have been initialised
734 by the boot-loader before use.
736 config DEBUG_S3C_UART2
737 depends on PLAT_SAMSUNG
738 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
739 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
740 select DEBUG_S5PV210_UART if ARCH_S5PV210
741 bool "Use Samsung S3C UART 2 for low-level debug"
743 Say Y here if you want the debug print routines to direct
744 their output to UART 2. The port must have been initialised
745 by the boot-loader before use.
747 config DEBUG_S3C_UART3
748 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
749 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
750 select DEBUG_S5PV210_UART if ARCH_S5PV210
751 bool "Use Samsung S3C UART 3 for low-level debug"
753 Say Y here if you want the debug print routines to direct
754 their output to UART 3. The port must have been initialised
755 by the boot-loader before use.
757 config DEBUG_S3C2410_UART0
758 depends on ARCH_S3C24XX
759 select DEBUG_S3C2410_UART
760 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
762 Say Y here if you want the debug print routines to direct
763 their output to UART 0. The port must have been initialised
764 by the boot-loader before use.
766 config DEBUG_S3C2410_UART1
767 depends on ARCH_S3C24XX
768 select DEBUG_S3C2410_UART
769 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
771 Say Y here if you want the debug print routines to direct
772 their output to UART 1. The port must have been initialised
773 by the boot-loader before use.
775 config DEBUG_S3C2410_UART2
776 depends on ARCH_S3C24XX
777 select DEBUG_S3C2410_UART
778 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
780 Say Y here if you want the debug print routines to direct
781 their output to UART 2. The port must have been initialised
782 by the boot-loader before use.
784 config DEBUG_SOCFPGA_UART
785 depends on ARCH_SOCFPGA
786 bool "Use SOCFPGA UART for low-level debug"
787 select DEBUG_UART_8250
789 Say Y here if you want kernel low-level debugging support
790 on SOCFPGA based platforms.
792 config DEBUG_SUNXI_UART0
793 bool "Kernel low-level debugging messages via sunXi UART0"
794 depends on ARCH_SUNXI
795 select DEBUG_UART_8250
797 Say Y here if you want kernel low-level debugging support
798 on Allwinner A1X based platforms on the UART0.
800 config DEBUG_SUNXI_UART1
801 bool "Kernel low-level debugging messages via sunXi UART1"
802 depends on ARCH_SUNXI
803 select DEBUG_UART_8250
805 Say Y here if you want kernel low-level debugging support
806 on Allwinner A1X based platforms on the UART1.
808 config DEBUG_SUNXI_R_UART
809 bool "Kernel low-level debugging messages via sunXi R_UART"
810 depends on MACH_SUN6I || MACH_SUN8I
811 select DEBUG_UART_8250
813 Say Y here if you want kernel low-level debugging support
814 on Allwinner A31/A23 based platforms on the R_UART.
816 config TEGRA_DEBUG_UART_AUTO_ODMDATA
817 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
818 depends on ARCH_TEGRA
819 select DEBUG_TEGRA_UART
821 Automatically determines which UART to use for low-level
822 debug based on the ODMDATA value. This value is part of
823 the BCT, and is written to the boot memory device using
824 nvflash, or other flashing tool. When bits 19:18 are 3,
825 then bits 17:15 indicate which UART to use; 0/1/2/3/4
828 config TEGRA_DEBUG_UARTA
829 bool "Kernel low-level debugging messages via Tegra UART A"
830 depends on ARCH_TEGRA
831 select DEBUG_TEGRA_UART
833 Say Y here if you want kernel low-level debugging support
834 on Tegra based platforms.
836 config TEGRA_DEBUG_UARTB
837 bool "Kernel low-level debugging messages via Tegra UART B"
838 depends on ARCH_TEGRA
839 select DEBUG_TEGRA_UART
841 Say Y here if you want kernel low-level debugging support
842 on Tegra based platforms.
844 config TEGRA_DEBUG_UARTC
845 bool "Kernel low-level debugging messages via Tegra UART C"
846 depends on ARCH_TEGRA
847 select DEBUG_TEGRA_UART
849 Say Y here if you want kernel low-level debugging support
850 on Tegra based platforms.
852 config TEGRA_DEBUG_UARTD
853 bool "Kernel low-level debugging messages via Tegra UART D"
854 depends on ARCH_TEGRA
855 select DEBUG_TEGRA_UART
857 Say Y here if you want kernel low-level debugging support
858 on Tegra based platforms.
860 config TEGRA_DEBUG_UARTE
861 bool "Kernel low-level debugging messages via Tegra UART E"
862 depends on ARCH_TEGRA
863 select DEBUG_TEGRA_UART
865 Say Y here if you want kernel low-level debugging support
866 on Tegra based platforms.
868 config DEBUG_SIRFPRIMA2_UART1
869 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
870 depends on ARCH_PRIMA2
872 Say Y here if you want the debug print routines to direct
873 their output to the uart1 port on SiRFprimaII devices.
875 config DEBUG_SIRFMARCO_UART1
876 bool "Kernel low-level debugging messages via SiRFmarco UART1"
877 depends on ARCH_MARCO
879 Say Y here if you want the debug print routines to direct
880 their output to the uart1 port on SiRFmarco devices.
882 config STIH41X_DEBUG_ASC2
883 bool "Use StiH415/416 ASC2 UART for low-level debug"
885 select DEBUG_STI_UART
887 Say Y here if you want kernel low-level debugging support
888 on STiH415/416 based platforms like b2000, which has
889 default UART wired up to ASC2.
893 config STIH41X_DEBUG_SBC_ASC1
894 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
896 select DEBUG_STI_UART
898 Say Y here if you want kernel low-level debugging support
899 on STiH415/416 based platforms like b2020. which has
900 default UART wired up to SBC ASC1.
904 config DEBUG_U300_UART
905 bool "Kernel low-level debugging messages via U300 UART0"
907 select DEBUG_UART_PL01X
909 Say Y here if you want the debug print routines to direct
910 their output to the uart port on U300 devices.
912 config DEBUG_UX500_UART
913 depends on ARCH_U8500
914 bool "Use Ux500 UART for low-level debug"
916 Say Y here if you want kernel low-level debugging support
917 on Ux500 based platforms.
919 config DEBUG_MT6589_UART0
920 bool "Mediatek mt6589 UART0"
921 depends on ARCH_MEDIATEK
922 select DEBUG_UART_8250
924 Say Y here if you want kernel low-level debugging support
925 for Mediatek mt6589 based platforms on UART0.
927 config DEBUG_VEXPRESS_UART0_DETECT
928 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
929 depends on ARCH_VEXPRESS && CPU_CP15_MMU
931 This option enables a simple heuristic which tries to determine
932 the motherboard's memory map variant (original or RS1) and then
933 choose the relevant UART0 base address.
935 Note that this will only work with standard A-class core tiles,
936 and may fail with non-standard SMM or custom software models.
938 config DEBUG_VEXPRESS_UART0_CA9
939 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
940 depends on ARCH_VEXPRESS
941 select DEBUG_UART_PL01X
943 This option selects UART0 at 0x10009000. Except for custom models,
944 this applies only to the V2P-CA9 tile.
946 config DEBUG_VEXPRESS_UART0_RS1
947 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
948 depends on ARCH_VEXPRESS
949 select DEBUG_UART_PL01X
951 This option selects UART0 at 0x1c090000. This applies to most
952 of the tiles using the RS1 memory map, including all new A-class
953 core tiles, FPGA-based SMMs and software models.
955 config DEBUG_VEXPRESS_UART0_CRX
956 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
957 depends on ARCH_VEXPRESS && !MMU
958 select DEBUG_UART_PL01X
960 This option selects UART0 at 0xb0090000. This is appropriate for
961 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
963 config DEBUG_VT8500_UART0
964 bool "Use UART0 on VIA/Wondermedia SoCs"
965 depends on ARCH_VT8500
967 This option selects UART0 on VIA/Wondermedia System-on-a-chip
968 devices, including VT8500, WM8505, WM8650 and WM8850.
970 config DEBUG_LL_UART_NONE
971 bool "No low-level debugging UART"
972 depends on !ARCH_MULTIPLATFORM
974 Say Y here if your platform doesn't provide a UART option
975 above. This relies on your platform choosing the right UART
976 definition internally in order for low-level debugging to
980 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
982 Say Y here if you want the debug print routines to direct
983 their output to the EmbeddedICE macrocell's DCC channel using
984 co-processor 14. This is known to work on the ARM9 style ICE
985 channel and on the XScale with the PEEDI.
987 Note that the system will appear to hang during boot if there
988 is nothing connected to read from the DCC.
990 config DEBUG_SEMIHOSTING
991 bool "Kernel low-level debug output via semihosting I/O"
993 Semihosting enables code running on an ARM target to use
994 the I/O facilities on a host debugger/emulator through a
995 simple SVC call. The host debugger or emulator must have
996 semihosting enabled for the special svc call to be trapped
997 otherwise the kernel will crash.
999 This is known to work with OpenOCD, as well as
1000 ARM's Fast Models, or any other controlling environment
1001 that implements semihosting.
1003 For more details about semihosting, please see
1004 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1006 config DEBUG_LL_UART_8250
1007 bool "Kernel low-level debugging via 8250 UART"
1009 Say Y here if you wish the debug print routes to direct
1010 their output to an 8250 UART. You can use this option
1011 to provide the parameters for the 8250 UART rather than
1012 selecting one of the platform specific options above if
1013 you know the parameters for the port.
1015 This option is preferred over the platform specific
1016 options; the platform specific options are deprecated
1017 and will be soon removed.
1019 config DEBUG_LL_UART_EFM32
1020 bool "Kernel low-level debugging via efm32 UART"
1021 depends on ARCH_EFM32
1023 Say Y here if you want the debug print routines to direct
1024 their output to an UART or USART port on efm32 based
1025 machines. Use the following addresses for DEBUG_UART_PHYS:
1033 config DEBUG_LL_UART_PL01X
1034 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1036 Say Y here if you wish the debug print routes to direct
1037 their output to a PL01x Primecell UART. You can use
1038 this option to provide the parameters for the UART
1039 rather than selecting one of the platform specific
1040 options above if you know the parameters for the port.
1042 This option is preferred over the platform specific
1043 options; the platform specific options are deprecated
1044 and will be soon removed.
1048 config DEBUG_EXYNOS_UART
1051 config DEBUG_S3C2410_UART
1053 select DEBUG_S3C24XX_UART
1055 config DEBUG_S3C24XX_UART
1058 config DEBUG_S5PV210_UART
1061 config DEBUG_OMAP2PLUS_UART
1063 depends on ARCH_OMAP2PLUS
1065 config DEBUG_IMX_UART_PORT
1066 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1067 DEBUG_IMX25_UART || \
1068 DEBUG_IMX21_IMX27_UART || \
1069 DEBUG_IMX31_UART || \
1070 DEBUG_IMX35_UART || \
1071 DEBUG_IMX50_UART || \
1072 DEBUG_IMX51_UART || \
1073 DEBUG_IMX53_UART || \
1074 DEBUG_IMX6Q_UART || \
1075 DEBUG_IMX6SL_UART || \
1080 Choose UART port on which kernel low-level debug messages
1083 config DEBUG_VF_UART_PORT
1084 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1087 depends on SOC_VF610
1089 Choose UART port on which kernel low-level debug messages
1092 config DEBUG_TEGRA_UART
1094 depends on ARCH_TEGRA
1096 config DEBUG_STI_UART
1100 config DEBUG_LL_INCLUDE
1102 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1103 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1104 default "debug/meson.S" if DEBUG_MESON_UARTAO
1105 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1106 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1107 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1108 default "debug/icedcc.S" if DEBUG_ICEDCC
1109 default "debug/imx.S" if DEBUG_IMX1_UART || \
1110 DEBUG_IMX25_UART || \
1111 DEBUG_IMX21_IMX27_UART || \
1112 DEBUG_IMX31_UART || \
1113 DEBUG_IMX35_UART || \
1114 DEBUG_IMX50_UART || \
1115 DEBUG_IMX51_UART || \
1116 DEBUG_IMX53_UART ||\
1117 DEBUG_IMX6Q_UART || \
1118 DEBUG_IMX6SL_UART || \
1120 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1121 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1122 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1123 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1124 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1125 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1126 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1127 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1128 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1129 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1130 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1131 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1132 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1133 default "debug/sti.S" if DEBUG_STI_UART
1134 default "debug/tegra.S" if DEBUG_TEGRA_UART
1135 default "debug/ux500.S" if DEBUG_UX500_UART
1136 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1137 default "debug/vf.S" if DEBUG_VF_UART
1138 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1139 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1140 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1141 default "mach/debug-macro.S"
1143 # Compatibility options for PL01x
1144 config DEBUG_UART_PL01X
1145 def_bool ARCH_EP93XX || \
1146 ARCH_INTEGRATOR || \
1152 # Compatibility options for 8250
1153 config DEBUG_UART_8250
1154 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1155 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1156 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1157 ARCH_IOP33X || ARCH_IXP4XX || \
1158 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1160 # Compatibility options for BCM63xx
1161 config DEBUG_UART_BCM63XX
1162 def_bool ARCH_BCM_63XX
1164 config DEBUG_UART_PHYS
1165 hex "Physical base address of debug UART"
1166 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1167 default 0x01c28000 if DEBUG_SUNXI_UART0
1168 default 0x01c28400 if DEBUG_SUNXI_UART1
1169 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1170 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1171 default 0x01f02800 if DEBUG_SUNXI_R_UART
1172 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1173 default 0x02531000 if DEBUG_KEYSTONE_UART1
1174 default 0x03010fe0 if ARCH_RPC
1175 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1176 DEBUG_VEXPRESS_UART0_CA9
1177 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1178 default 0x10124000 if DEBUG_RK3X_UART0
1179 default 0x10126000 if DEBUG_RK3X_UART1
1180 default 0x101f1000 if ARCH_VERSATILE
1181 default 0x101fb000 if DEBUG_NOMADIK_UART
1182 default 0x11006000 if DEBUG_MT6589_UART0
1183 default 0x16000000 if ARCH_INTEGRATOR
1184 default 0x18000300 if DEBUG_BCM_5301X
1185 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1186 default 0x20060000 if DEBUG_RK29_UART0
1187 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1188 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1189 default 0x20201000 if DEBUG_BCM2835
1190 default 0x3e000000 if DEBUG_BCM_KONA_UART
1191 default 0x4000e400 if DEBUG_LL_UART_EFM32
1192 default 0x40090000 if ARCH_LPC32XX
1193 default 0x40100000 if DEBUG_PXA_UART1
1194 default 0x42000000 if ARCH_GEMINI
1195 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1196 DEBUG_S3C2410_UART0)
1197 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1198 DEBUG_S3C2410_UART1)
1199 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1200 DEBUG_S3C2410_UART2)
1201 default 0x78000000 if DEBUG_CNS3XXX
1202 default 0x7c0003f8 if FOOTBRIDGE
1203 default 0x78000000 if DEBUG_CNS3XXX
1204 default 0x80070000 if DEBUG_IMX23_UART
1205 default 0x80074000 if DEBUG_IMX28_UART
1206 default 0x80230000 if DEBUG_PICOXCELL_UART
1207 default 0x808c0000 if ARCH_EP93XX
1208 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1209 default 0xa9a00000 if DEBUG_MSM_UART
1210 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1211 default 0xc0013000 if DEBUG_U300_UART
1212 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1213 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1214 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1215 default 0xd0012000 if DEBUG_MVEBU_UART
1216 default 0xc81004c0 if DEBUG_MESON_UARTAO
1217 default 0xd4017000 if DEBUG_MMP_UART2
1218 default 0xd4018000 if DEBUG_MMP_UART3
1219 default 0xe0000000 if ARCH_SPEAR13XX
1220 default 0xe4007000 if DEBUG_HIP04_UART
1221 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1222 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1223 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1224 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1225 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1226 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1227 default 0xf0000be0 if ARCH_EBSA110
1228 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1229 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1231 default 0xf7fc9000 if DEBUG_BERLIN_UART
1232 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1233 default 0xf991e000 if DEBUG_QCOM_UARTDM
1234 default 0xfcb00000 if DEBUG_HI3620_UART
1235 default 0xfe800000 if ARCH_IOP32X
1236 default 0xff690000 if DEBUG_RK32_UART2
1237 default 0xffc02000 if DEBUG_SOCFPGA_UART
1238 default 0xffd82340 if ARCH_IOP13XX
1239 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1240 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1241 default 0xfff36000 if DEBUG_HIGHBANK_UART
1242 default 0xfffe8600 if DEBUG_UART_BCM63XX
1243 default 0xfffff700 if ARCH_IOP33X
1244 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1245 DEBUG_LL_UART_EFM32 || \
1246 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1247 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1248 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1249 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1250 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1251 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1254 config DEBUG_UART_VIRT
1255 hex "Virtual base address of debug UART"
1256 default 0xe0010fe0 if ARCH_RPC
1257 default 0xe1000000 if DEBUG_MSM_UART
1258 default 0xf0000be0 if ARCH_EBSA110
1259 default 0xf01fb000 if DEBUG_NOMADIK_UART
1260 default 0xf0201000 if DEBUG_BCM2835
1261 default 0xf1000300 if DEBUG_BCM_5301X
1262 default 0xf1006000 if DEBUG_MT6589_UART0
1263 default 0xf11f1000 if ARCH_VERSATILE
1264 default 0xf1600000 if ARCH_INTEGRATOR
1265 default 0xf1c28000 if DEBUG_SUNXI_UART0
1266 default 0xf1c28400 if DEBUG_SUNXI_UART1
1267 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1268 default 0xf2100000 if DEBUG_PXA_UART1
1269 default 0xf4090000 if ARCH_LPC32XX
1270 default 0xf4200000 if ARCH_GEMINI
1271 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1272 DEBUG_S3C2410_UART0)
1273 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1274 DEBUG_S3C2410_UART1)
1275 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1276 DEBUG_S3C2410_UART2)
1277 default 0xf7fc9000 if DEBUG_BERLIN_UART
1278 default 0xf8007000 if DEBUG_HIP04_UART
1279 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1280 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1281 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1282 default 0xfb002000 if DEBUG_CNS3XXX
1283 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1284 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1285 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1286 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1287 default 0xfd000000 if ARCH_SPEAR13XX
1288 default 0xfd012000 if ARCH_MV78XX0
1289 default 0xfde12000 if ARCH_DOVE
1290 default 0xfe012000 if ARCH_ORION5X
1291 default 0xf31004c0 if DEBUG_MESON_UARTAO
1292 default 0xfe017000 if DEBUG_MMP_UART2
1293 default 0xfe018000 if DEBUG_MMP_UART3
1294 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1295 default 0xfe230000 if DEBUG_PICOXCELL_UART
1296 default 0xfe300000 if DEBUG_BCM_KONA_UART
1297 default 0xfe800000 if ARCH_IOP32X
1298 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1299 default 0xfeb24000 if DEBUG_RK3X_UART0
1300 default 0xfeb26000 if DEBUG_RK3X_UART1
1301 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1302 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1303 default 0xfec02000 if DEBUG_SOCFPGA_UART
1304 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1305 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1306 default 0xfec90000 if DEBUG_RK32_UART2
1307 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1308 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1309 default 0xfed60000 if DEBUG_RK29_UART0
1310 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1311 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1312 default 0xfedc0000 if ARCH_EP93XX
1313 default 0xfee003f8 if FOOTBRIDGE
1314 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1315 default 0xfee82340 if ARCH_IOP13XX
1316 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1317 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1318 default 0xfef36000 if DEBUG_HIGHBANK_UART
1319 default 0xfefff700 if ARCH_IOP33X
1320 default 0xff003000 if DEBUG_U300_UART
1321 default DEBUG_UART_PHYS if !MMU
1322 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1323 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1324 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1327 config DEBUG_UART_8250_SHIFT
1328 int "Register offset shift for the 8250 debug UART"
1329 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1330 default 0 if FOOTBRIDGE || ARCH_IOP32X
1333 config DEBUG_UART_8250_WORD
1334 bool "Use 32-bit accesses for 8250 UART"
1335 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1336 depends on DEBUG_UART_8250_SHIFT >= 2
1337 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1339 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1340 DEBUG_DAVINCI_DA8XX_UART2 || \
1341 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1343 config DEBUG_UART_8250_FLOW_CONTROL
1344 bool "Enable flow control for 8250 UART"
1345 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1346 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1348 config DEBUG_UNCOMPRESS
1350 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1351 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1352 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1354 This option influences the normal decompressor output for
1355 multiplatform kernels. Normally, multiplatform kernels disable
1356 decompressor output because it is not possible to know where to
1357 send the decompressor output.
1359 When this option is set, the selected DEBUG_LL output method
1360 will be re-used for normal decompressor output on multiplatform
1364 config UNCOMPRESS_INCLUDE
1366 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1367 PLAT_SAMSUNG || ARCH_EFM32
1368 default "mach/uncompress.h"
1374 Say Y here if you want to have an early console using the
1375 kernel low-level debugging functions. Add earlyprintk to your
1376 kernel parameters to enable this console.
1379 bool "On-chip ETM and ETB"
1382 Enables the on-chip embedded trace macrocell and embedded trace
1383 buffer driver that will allow you to collect traces of the
1386 config ARM_KPROBES_TEST
1387 tristate "Kprobes test module"
1388 depends on KPROBES && MODULES
1390 Perform tests of kprobes API and instruction set simulation.
1392 config PID_IN_CONTEXTIDR
1393 bool "Write the current PID to the CONTEXTIDR register"
1394 depends on CPU_COPY_V6
1396 Enabling this option causes the kernel to write the current PID to
1397 the PROCID field of the CONTEXTIDR register, at the expense of some
1398 additional instructions during context switch. Say Y here only if you
1399 are planning to use hardware trace tools with this kernel.
1401 config DEBUG_SET_MODULE_RONX
1402 bool "Set loadable kernel module data as NX and text as RO"
1405 This option helps catch unintended modifications to loadable
1406 kernel module's text and read-only data. It also prevents execution
1407 of module data. Such protection may interfere with run-time code
1408 patching and dynamic kernel tracing - and they might also protect
1409 against certain classes of kernel exploits.
1410 If in doubt, say "N".