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 DEBUG_ASM9260_UART
97 bool "Kernel low-level debugging via asm9260 UART"
98 depends on MACH_ASM9260
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
104 DEBUG_UART_PHYS | DEBUG_UART_VIRT
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
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
121 config AT91_DEBUG_LL_DBGU1
122 bool "Kernel low-level debugging on 9263 and 9g45"
123 depends on HAVE_AT91_DBGU1
125 config AT91_DEBUG_LL_DBGU2
126 bool "Kernel low-level debugging on sama5d4"
127 depends on HAVE_AT91_DBGU2
130 bool "Kernel low-level debugging on BCM2835 PL011 UART"
131 depends on ARCH_BCM2835
132 select DEBUG_UART_PL01X
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
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
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,
151 bool "Kernel low-level debugging on BCM63XX UART"
152 depends on ARCH_BCM_63XX
153 select DEBUG_UART_BCM63XX
155 config DEBUG_BERLIN_UART
156 bool "Marvell Berlin SoC Debug UART"
157 depends on ARCH_BERLIN
158 select DEBUG_UART_8250
160 Say Y here if you want kernel low-level debugging support
161 on Marvell Berlin SoC based platforms.
163 config DEBUG_BRCMSTB_UART
164 bool "Use BRCMSTB UART for low-level debug"
165 depends on ARCH_BRCMSTB
166 select DEBUG_UART_8250
168 Say Y here if you want the debug print routines to direct
169 their output to the first serial port on these devices.
171 If you have a Broadcom STB chip and would like early print
172 messages to appear over the UART, select this option.
174 config DEBUG_CLPS711X_UART1
175 bool "Kernel low-level debugging messages via UART1"
176 depends on ARCH_CLPS711X
178 Say Y here if you want the debug print routines to direct
179 their output to the first serial port on these devices.
181 config DEBUG_CLPS711X_UART2
182 bool "Kernel low-level debugging messages via UART2"
183 depends on ARCH_CLPS711X
185 Say Y here if you want the debug print routines to direct
186 their output to the second serial port on these devices.
189 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
190 depends on ARCH_CNS3XXX
191 select DEBUG_UART_8250
193 Say Y here if you want the debug print routines to direct
194 their output to the CNS3xxx UART0.
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
201 Say Y here if you want the debug print routines to direct
202 their output to UART1 serial port on DaVinci DA8XX devices.
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
209 Say Y here if you want the debug print routines to direct
210 their output to UART2 serial port on DaVinci DA8XX devices.
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
217 Say Y here if you want the debug print routines to direct
218 their output to UART0 serial port on DaVinci DMx devices.
220 config DEBUG_ZYNQ_UART0
221 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
224 Say Y here if you want the debug print routines to direct
225 their output to UART0 on the Zynq platform.
227 config DEBUG_ZYNQ_UART1
228 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
231 Say Y here if you want the debug print routines to direct
232 their output to UART1 on the Zynq platform.
234 If you have a ZC702 board and want early boot messages to
235 appear on the USB serial adaptor, select this option.
237 config DEBUG_DC21285_PORT
238 bool "Kernel low-level debugging messages via footbridge serial port"
239 depends on FOOTBRIDGE
241 Say Y here if you want the debug print routines to direct
242 their output to the serial port in the DC21285 (Footbridge).
244 config DEBUG_FOOTBRIDGE_COM1
245 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
246 depends on FOOTBRIDGE
248 Say Y here if you want the debug print routines to direct
249 their output to the 8250 at PCI COM1.
251 config DEBUG_HI3620_UART
252 bool "Hisilicon HI3620 Debug UART"
253 depends on ARCH_HI3xxx
254 select DEBUG_UART_PL01X
256 Say Y here if you want kernel low-level debugging support
259 config DEBUG_HI3716_UART
260 bool "Hisilicon Hi3716 Debug UART"
261 depends on ARCH_HI3xxx
262 select DEBUG_UART_PL01X
264 Say Y here if you want kernel low-level debugging support
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
272 Say Y here if you want the debug print routines to direct
273 their output to the UART on Highbank based devices.
275 config DEBUG_HIP04_UART
276 bool "Hisilicon HiP04 Debug UART"
277 depends on ARCH_HIP04
278 select DEBUG_UART_8250
280 Say Y here if you want kernel low-level debugging support
283 config DEBUG_HIX5HD2_UART
284 bool "Hisilicon Hix5hd2 Debug UART"
285 depends on ARCH_HIX5HD2
286 select DEBUG_UART_PL01X
288 Say Y here if you want kernel low-level debugging support
291 config DEBUG_IMX1_UART
292 bool "i.MX1 Debug UART"
295 Say Y here if you want kernel low-level debugging support
298 config DEBUG_IMX23_UART
299 bool "i.MX23 Debug UART"
301 select DEBUG_UART_PL01X
303 Say Y here if you want kernel low-level debugging support
306 config DEBUG_IMX25_UART
307 bool "i.MX25 Debug UART"
310 Say Y here if you want kernel low-level debugging support
313 config DEBUG_IMX21_IMX27_UART
314 bool "i.MX21 and i.MX27 Debug UART"
315 depends on SOC_IMX21 || SOC_IMX27
317 Say Y here if you want kernel low-level debugging support
320 config DEBUG_IMX28_UART
321 bool "i.MX28 Debug UART"
323 select DEBUG_UART_PL01X
325 Say Y here if you want kernel low-level debugging support
328 config DEBUG_IMX31_UART
329 bool "i.MX31 Debug UART"
332 Say Y here if you want kernel low-level debugging support
335 config DEBUG_IMX35_UART
336 bool "i.MX35 Debug UART"
339 Say Y here if you want kernel low-level debugging support
342 config DEBUG_IMX50_UART
343 bool "i.MX50 Debug UART"
346 Say Y here if you want kernel low-level debugging support
349 config DEBUG_IMX51_UART
350 bool "i.MX51 Debug UART"
353 Say Y here if you want kernel low-level debugging support
356 config DEBUG_IMX53_UART
357 bool "i.MX53 Debug UART"
360 Say Y here if you want kernel low-level debugging support
363 config DEBUG_IMX6Q_UART
364 bool "i.MX6Q/DL Debug UART"
367 Say Y here if you want kernel low-level debugging support
370 config DEBUG_IMX6SL_UART
371 bool "i.MX6SL Debug UART"
372 depends on SOC_IMX6SL
374 Say Y here if you want kernel low-level debugging support
377 config DEBUG_IMX6SX_UART
378 bool "i.MX6SX Debug UART"
379 depends on SOC_IMX6SX
381 Say Y here if you want kernel low-level debugging support
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
389 Say Y here if you want the debug print routines to direct
390 their output to UART0 serial port on KEYSTONE2 devices.
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
397 Say Y here if you want the debug print routines to direct
398 their output to UART1 serial port on KEYSTONE2 devices.
400 config DEBUG_MESON_UARTAO
401 bool "Kernel low-level debugging via Meson6 UARTAO"
402 depends on ARCH_MESON
404 Say Y here if you want kernel low-lever debugging support
405 on Amlogic Meson6 based platforms on the UARTAO.
407 config DEBUG_MMP_UART2
408 bool "Kernel low-level debugging message via MMP UART2"
410 select DEBUG_UART_8250
412 Say Y here if you want kernel low-level debugging support
415 config DEBUG_MMP_UART3
416 bool "Kernel low-level debugging message via MMP UART3"
418 select DEBUG_UART_8250
420 Say Y here if you want kernel low-level debugging support
423 config DEBUG_MSM_UART
424 bool "Kernel low-level debugging messages via MSM UART"
427 Say Y here if you want the debug print routines to direct
428 their output to the serial port on MSM devices.
430 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT #
431 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
432 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
433 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
435 MSM7X30 0xaca00000 0xe1000000 UART1
436 MSM7X30 0xacb00000 0xe1000000 UART2
437 MSM7X30 0xacc00000 0xe1000000 UART3
439 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
440 options based on your needs.
442 config DEBUG_QCOM_UARTDM
443 bool "Kernel low-level debugging messages via QCOM UARTDM"
446 Say Y here if you want the debug print routines to direct
447 their output to the serial port on Qualcomm devices.
449 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
450 APQ8064 0x16640000 0xf0040000
451 APQ8084 0xf995e000 0xfa75e000
452 MSM8X60 0x19c40000 0xf0040000
453 MSM8960 0x16440000 0xf0040000
454 MSM8974 0xf991e000 0xfa71e000
456 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
457 options based on your needs.
459 config DEBUG_MVEBU_UART
460 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
461 depends on ARCH_MVEBU
462 select DEBUG_UART_8250
464 Say Y here if you want kernel low-level debugging support
465 on MVEBU based platforms.
467 This option should be used with the old bootloaders
468 that left the internal registers mapped at
469 0xd0000000. As of today, this is the case on
470 platforms such as the Globalscale Mirabox or the
471 Plathome OpenBlocks AX3, when using the original
474 If the wrong DEBUG_MVEBU_UART* option is selected,
475 when u-boot hands over to the kernel, the system
476 silently crashes, with no serial output at all.
478 config DEBUG_MVEBU_UART_ALTERNATE
479 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
480 depends on ARCH_MVEBU
481 select DEBUG_UART_8250
483 Say Y here if you want kernel low-level debugging support
484 on MVEBU based platforms.
486 This option should be used with the new bootloaders
487 that remap the internal registers at 0xf1000000.
489 If the wrong DEBUG_MVEBU_UART* option is selected,
490 when u-boot hands over to the kernel, the system
491 silently crashes, with no serial output at all.
497 Say Y here if you want kernel low-level debugging support
498 on Vybrid based platforms.
500 config DEBUG_NOMADIK_UART
501 bool "Kernel low-level debugging messages via NOMADIK UART"
502 depends on ARCH_NOMADIK
503 select DEBUG_UART_PL01X
505 Say Y here if you want kernel low-level debugging support
506 on NOMADIK based platforms.
508 config DEBUG_NSPIRE_CLASSIC_UART
509 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
510 depends on ARCH_NSPIRE
511 select DEBUG_UART_8250
513 Say Y here if you want kernel low-level debugging support
514 on TI-NSPIRE classic models.
516 config DEBUG_NSPIRE_CX_UART
517 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
518 depends on ARCH_NSPIRE
519 select DEBUG_UART_PL01X
521 Say Y here if you want kernel low-level debugging support
522 on TI-NSPIRE CX models.
524 config DEBUG_OMAP2UART1
525 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
526 depends on ARCH_OMAP2PLUS
527 select DEBUG_OMAP2PLUS_UART
529 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
530 omap3 torpedo and 3530 lv som.
532 config DEBUG_OMAP2UART2
533 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
534 depends on ARCH_OMAP2PLUS
535 select DEBUG_OMAP2PLUS_UART
537 config DEBUG_OMAP2UART3
538 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
539 depends on ARCH_OMAP2PLUS
540 select DEBUG_OMAP2PLUS_UART
542 config DEBUG_OMAP3UART3
543 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
544 depends on ARCH_OMAP2PLUS
545 select DEBUG_OMAP2PLUS_UART
547 This covers at least cm_t3x, beagle, crane, devkit8000,
548 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
551 config DEBUG_OMAP4UART3
552 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
553 depends on ARCH_OMAP2PLUS
554 select DEBUG_OMAP2PLUS_UART
556 config DEBUG_OMAP3UART4
557 bool "Kernel low-level debugging messages via OMAP36XX UART4"
558 depends on ARCH_OMAP2PLUS
559 select DEBUG_OMAP2PLUS_UART
561 config DEBUG_OMAP4UART4
562 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
563 depends on ARCH_OMAP2PLUS
564 select DEBUG_OMAP2PLUS_UART
566 config DEBUG_TI81XXUART1
567 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
568 depends on ARCH_OMAP2PLUS
569 select DEBUG_OMAP2PLUS_UART
571 config DEBUG_TI81XXUART2
572 bool "Kernel low-level debugging messages via TI81XX UART2"
573 depends on ARCH_OMAP2PLUS
574 select DEBUG_OMAP2PLUS_UART
576 config DEBUG_TI81XXUART3
577 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
578 depends on ARCH_OMAP2PLUS
579 select DEBUG_OMAP2PLUS_UART
581 config DEBUG_AM33XXUART1
582 bool "Kernel low-level debugging messages via AM33XX UART1"
583 depends on ARCH_OMAP2PLUS
584 select DEBUG_OMAP2PLUS_UART
586 config DEBUG_ZOOM_UART
587 bool "Kernel low-level debugging messages via Zoom2/3 UART"
588 depends on ARCH_OMAP2PLUS
589 select DEBUG_OMAP2PLUS_UART
591 config DEBUG_PICOXCELL_UART
592 depends on ARCH_PICOXCELL
593 bool "Use PicoXcell UART for low-level debug"
594 select DEBUG_UART_8250
596 Say Y here if you want kernel low-level debugging support
597 on PicoXcell based platforms.
599 config DEBUG_PXA_UART1
601 bool "Use PXA UART1 for low-level debug"
602 select DEBUG_UART_8250
604 Say Y here if you want kernel low-level debugging support
607 config DEBUG_REALVIEW_STD_PORT
608 bool "RealView Default UART"
609 depends on ARCH_REALVIEW
610 select DEBUG_UART_PL01X
612 Say Y here if you want the debug print routines to direct
613 their output to the serial port on RealView EB, PB11MP, PBA8
616 config DEBUG_REALVIEW_PB1176_PORT
617 bool "RealView PB1176 UART"
618 depends on MACH_REALVIEW_PB1176
619 select DEBUG_UART_PL01X
621 Say Y here if you want the debug print routines to direct
622 their output to the standard serial port on the RealView
625 config DEBUG_RK29_UART0
626 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
627 depends on ARCH_ROCKCHIP
628 select DEBUG_UART_8250
630 Say Y here if you want kernel low-level debugging support
631 on Rockchip based platforms.
633 config DEBUG_RK29_UART1
634 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
635 depends on ARCH_ROCKCHIP
636 select DEBUG_UART_8250
638 Say Y here if you want kernel low-level debugging support
639 on Rockchip based platforms.
641 config DEBUG_RK29_UART2
642 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
643 depends on ARCH_ROCKCHIP
644 select DEBUG_UART_8250
646 Say Y here if you want kernel low-level debugging support
647 on Rockchip based platforms.
649 config DEBUG_RK3X_UART0
650 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
651 depends on ARCH_ROCKCHIP
652 select DEBUG_UART_8250
654 Say Y here if you want kernel low-level debugging support
655 on Rockchip based platforms.
657 config DEBUG_RK3X_UART1
658 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
659 depends on ARCH_ROCKCHIP
660 select DEBUG_UART_8250
662 Say Y here if you want kernel low-level debugging support
663 on Rockchip based platforms.
665 config DEBUG_RK3X_UART2
666 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
667 depends on ARCH_ROCKCHIP
668 select DEBUG_UART_8250
670 Say Y here if you want kernel low-level debugging support
671 on Rockchip based platforms.
673 config DEBUG_RK3X_UART3
674 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
675 depends on ARCH_ROCKCHIP
676 select DEBUG_UART_8250
678 Say Y here if you want kernel low-level debugging support
679 on Rockchip based platforms.
681 config DEBUG_RK32_UART2
682 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
683 depends on ARCH_ROCKCHIP
684 select DEBUG_UART_8250
686 Say Y here if you want kernel low-level debugging support
687 on Rockchip RK32xx based platforms.
689 config DEBUG_R7S72100_SCIF2
690 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
691 depends on ARCH_R7S72100
693 Say Y here if you want kernel low-level debugging support
694 via SCIF2 on Renesas RZ/A1H (R7S72100).
696 config DEBUG_RCAR_GEN1_SCIF0
697 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
698 depends on ARCH_R8A7778
700 Say Y here if you want kernel low-level debugging support
701 via SCIF0 on Renesas R-Car M1A (R8A7778).
703 config DEBUG_RCAR_GEN1_SCIF2
704 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
705 depends on ARCH_R8A7779
707 Say Y here if you want kernel low-level debugging support
708 via SCIF2 on Renesas R-Car H1 (R8A7779).
710 config DEBUG_RCAR_GEN2_SCIF0
711 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
712 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
714 Say Y here if you want kernel low-level debugging support
715 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
718 config DEBUG_RCAR_GEN2_SCIF2
719 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
720 depends on ARCH_R8A7794
722 Say Y here if you want kernel low-level debugging support
723 via SCIF2 on Renesas R-Car E2 (R8A7794).
725 config DEBUG_RMOBILE_SCIFA0
726 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
727 depends on ARCH_R8A73A4 || ARCH_SH7372
729 Say Y here if you want kernel low-level debugging support
730 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
733 config DEBUG_RMOBILE_SCIFA1
734 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
735 depends on ARCH_R8A7740
737 Say Y here if you want kernel low-level debugging support
738 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
740 config DEBUG_RMOBILE_SCIFA4
741 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
742 depends on ARCH_SH73A0
744 Say Y here if you want kernel low-level debugging support
745 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
747 config DEBUG_S3C_UART0
748 depends on PLAT_SAMSUNG
749 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
750 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
751 select DEBUG_S5PV210_UART if ARCH_S5PV210
752 bool "Use Samsung S3C UART 0 for low-level debug"
754 Say Y here if you want the debug print routines to direct
755 their output to UART 0. The port must have been initialised
756 by the boot-loader before use.
758 config DEBUG_S3C_UART1
759 depends on PLAT_SAMSUNG
760 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
761 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
762 select DEBUG_S5PV210_UART if ARCH_S5PV210
763 bool "Use Samsung S3C UART 1 for low-level debug"
765 Say Y here if you want the debug print routines to direct
766 their output to UART 1. The port must have been initialised
767 by the boot-loader before use.
769 config DEBUG_S3C_UART2
770 depends on PLAT_SAMSUNG
771 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
772 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
773 select DEBUG_S5PV210_UART if ARCH_S5PV210
774 bool "Use Samsung S3C UART 2 for low-level debug"
776 Say Y here if you want the debug print routines to direct
777 their output to UART 2. The port must have been initialised
778 by the boot-loader before use.
780 config DEBUG_S3C_UART3
781 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
782 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
783 select DEBUG_S5PV210_UART if ARCH_S5PV210
784 bool "Use Samsung S3C UART 3 for low-level debug"
786 Say Y here if you want the debug print routines to direct
787 their output to UART 3. The port must have been initialised
788 by the boot-loader before use.
790 config DEBUG_S3C2410_UART0
791 depends on ARCH_S3C24XX
792 select DEBUG_S3C2410_UART
793 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
795 Say Y here if you want the debug print routines to direct
796 their output to UART 0. The port must have been initialised
797 by the boot-loader before use.
799 config DEBUG_S3C2410_UART1
800 depends on ARCH_S3C24XX
801 select DEBUG_S3C2410_UART
802 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
804 Say Y here if you want the debug print routines to direct
805 their output to UART 1. The port must have been initialised
806 by the boot-loader before use.
808 config DEBUG_S3C2410_UART2
809 depends on ARCH_S3C24XX
810 select DEBUG_S3C2410_UART
811 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
813 Say Y here if you want the debug print routines to direct
814 their output to UART 2. The port must have been initialised
815 by the boot-loader before use.
818 depends on ARCH_SA1100
819 bool "Use SA1100 UARTs for low-level debug"
821 Say Y here if you want kernel low-level debugging support
822 on SA-11x0 UART ports. The kernel will check for the first
823 enabled UART in a sequence 3-1-2.
825 config DEBUG_SOCFPGA_UART
826 depends on ARCH_SOCFPGA
827 bool "Use SOCFPGA UART for low-level debug"
828 select DEBUG_UART_8250
830 Say Y here if you want kernel low-level debugging support
831 on SOCFPGA based platforms.
833 config DEBUG_SUN9I_UART0
834 bool "Kernel low-level debugging messages via sun9i UART0"
835 depends on MACH_SUN9I
836 select DEBUG_UART_8250
838 Say Y here if you want kernel low-level debugging support
839 on Allwinner A80 based platforms on the UART0.
841 config DEBUG_SUNXI_UART0
842 bool "Kernel low-level debugging messages via sunXi UART0"
843 depends on ARCH_SUNXI
844 select DEBUG_UART_8250
846 Say Y here if you want kernel low-level debugging support
847 on Allwinner A1X based platforms on the UART0.
849 config DEBUG_SUNXI_UART1
850 bool "Kernel low-level debugging messages via sunXi UART1"
851 depends on ARCH_SUNXI
852 select DEBUG_UART_8250
854 Say Y here if you want kernel low-level debugging support
855 on Allwinner A1X based platforms on the UART1.
857 config DEBUG_SUNXI_R_UART
858 bool "Kernel low-level debugging messages via sunXi R_UART"
859 depends on MACH_SUN6I || MACH_SUN8I
860 select DEBUG_UART_8250
862 Say Y here if you want kernel low-level debugging support
863 on Allwinner A31/A23 based platforms on the R_UART.
865 config TEGRA_DEBUG_UART_AUTO_ODMDATA
866 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
867 depends on ARCH_TEGRA
868 select DEBUG_TEGRA_UART
870 Automatically determines which UART to use for low-level
871 debug based on the ODMDATA value. This value is part of
872 the BCT, and is written to the boot memory device using
873 nvflash, or other flashing tool. When bits 19:18 are 3,
874 then bits 17:15 indicate which UART to use; 0/1/2/3/4
877 config TEGRA_DEBUG_UARTA
878 bool "Kernel low-level debugging messages via Tegra UART A"
879 depends on ARCH_TEGRA
880 select DEBUG_TEGRA_UART
882 Say Y here if you want kernel low-level debugging support
883 on Tegra based platforms.
885 config TEGRA_DEBUG_UARTB
886 bool "Kernel low-level debugging messages via Tegra UART B"
887 depends on ARCH_TEGRA
888 select DEBUG_TEGRA_UART
890 Say Y here if you want kernel low-level debugging support
891 on Tegra based platforms.
893 config TEGRA_DEBUG_UARTC
894 bool "Kernel low-level debugging messages via Tegra UART C"
895 depends on ARCH_TEGRA
896 select DEBUG_TEGRA_UART
898 Say Y here if you want kernel low-level debugging support
899 on Tegra based platforms.
901 config TEGRA_DEBUG_UARTD
902 bool "Kernel low-level debugging messages via Tegra UART D"
903 depends on ARCH_TEGRA
904 select DEBUG_TEGRA_UART
906 Say Y here if you want kernel low-level debugging support
907 on Tegra based platforms.
909 config TEGRA_DEBUG_UARTE
910 bool "Kernel low-level debugging messages via Tegra UART E"
911 depends on ARCH_TEGRA
912 select DEBUG_TEGRA_UART
914 Say Y here if you want kernel low-level debugging support
915 on Tegra based platforms.
917 config DEBUG_SIRFPRIMA2_UART1
918 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
919 depends on ARCH_PRIMA2
921 Say Y here if you want the debug print routines to direct
922 their output to the uart1 port on SiRFprimaII devices.
924 config DEBUG_SIRFMARCO_UART1
925 bool "Kernel low-level debugging messages via SiRFmarco UART1"
926 depends on ARCH_MARCO
928 Say Y here if you want the debug print routines to direct
929 their output to the uart1 port on SiRFmarco devices.
931 config STIH41X_DEBUG_ASC2
932 bool "Use StiH415/416 ASC2 UART for low-level debug"
934 select DEBUG_STI_UART
936 Say Y here if you want kernel low-level debugging support
937 on STiH415/416 based platforms like b2000, which has
938 default UART wired up to ASC2.
942 config STIH41X_DEBUG_SBC_ASC1
943 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
945 select DEBUG_STI_UART
947 Say Y here if you want kernel low-level debugging support
948 on STiH415/416 based platforms like b2020. which has
949 default UART wired up to SBC ASC1.
953 config DEBUG_U300_UART
954 bool "Kernel low-level debugging messages via U300 UART0"
956 select DEBUG_UART_PL01X
958 Say Y here if you want the debug print routines to direct
959 their output to the uart port on U300 devices.
961 config DEBUG_UX500_UART
962 depends on ARCH_U8500
963 bool "Use Ux500 UART for low-level debug"
965 Say Y here if you want kernel low-level debugging support
966 on Ux500 based platforms.
968 config DEBUG_MT6589_UART0
969 bool "Mediatek mt6589 UART0"
970 depends on ARCH_MEDIATEK
971 select DEBUG_UART_8250
973 Say Y here if you want kernel low-level debugging support
974 for Mediatek mt6589 based platforms on UART0.
976 config DEBUG_MT8127_UART0
977 bool "Mediatek mt8127 UART0"
978 depends on ARCH_MEDIATEK
979 select DEBUG_UART_8250
981 Say Y here if you want kernel low-level debugging support
982 for Mediatek mt8127 based platforms on UART0.
984 config DEBUG_MT8135_UART3
985 bool "Mediatek mt8135 UART3"
986 depends on ARCH_MEDIATEK
987 select DEBUG_UART_8250
989 Say Y here if you want kernel low-level debugging support
990 for Mediatek mt8135 based platforms on UART3.
992 config DEBUG_VEXPRESS_UART0_DETECT
993 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
994 depends on ARCH_VEXPRESS && CPU_CP15_MMU
996 This option enables a simple heuristic which tries to determine
997 the motherboard's memory map variant (original or RS1) and then
998 choose the relevant UART0 base address.
1000 Note that this will only work with standard A-class core tiles,
1001 and may fail with non-standard SMM or custom software models.
1003 config DEBUG_VEXPRESS_UART0_CA9
1004 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1005 depends on ARCH_VEXPRESS
1006 select DEBUG_UART_PL01X
1008 This option selects UART0 at 0x10009000. Except for custom models,
1009 this applies only to the V2P-CA9 tile.
1011 config DEBUG_VEXPRESS_UART0_RS1
1012 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1013 depends on ARCH_VEXPRESS
1014 select DEBUG_UART_PL01X
1016 This option selects UART0 at 0x1c090000. This applies to most
1017 of the tiles using the RS1 memory map, including all new A-class
1018 core tiles, FPGA-based SMMs and software models.
1020 config DEBUG_VEXPRESS_UART0_CRX
1021 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1022 depends on ARCH_VEXPRESS && !MMU
1023 select DEBUG_UART_PL01X
1025 This option selects UART0 at 0xb0090000. This is appropriate for
1026 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1028 config DEBUG_VT8500_UART0
1029 bool "Use UART0 on VIA/Wondermedia SoCs"
1030 depends on ARCH_VT8500
1032 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1033 devices, including VT8500, WM8505, WM8650 and WM8850.
1035 config DEBUG_LL_UART_NONE
1036 bool "No low-level debugging UART"
1037 depends on !ARCH_MULTIPLATFORM
1039 Say Y here if your platform doesn't provide a UART option
1040 above. This relies on your platform choosing the right UART
1041 definition internally in order for low-level debugging to
1045 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1047 Say Y here if you want the debug print routines to direct
1048 their output to the EmbeddedICE macrocell's DCC channel using
1049 co-processor 14. This is known to work on the ARM9 style ICE
1050 channel and on the XScale with the PEEDI.
1052 Note that the system will appear to hang during boot if there
1053 is nothing connected to read from the DCC.
1055 config DEBUG_SEMIHOSTING
1056 bool "Kernel low-level debug output via semihosting I/O"
1058 Semihosting enables code running on an ARM target to use
1059 the I/O facilities on a host debugger/emulator through a
1060 simple SVC call. The host debugger or emulator must have
1061 semihosting enabled for the special svc call to be trapped
1062 otherwise the kernel will crash.
1064 This is known to work with OpenOCD, as well as
1065 ARM's Fast Models, or any other controlling environment
1066 that implements semihosting.
1068 For more details about semihosting, please see
1069 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1071 config DEBUG_LL_UART_8250
1072 bool "Kernel low-level debugging via 8250 UART"
1074 Say Y here if you wish the debug print routes to direct
1075 their output to an 8250 UART. You can use this option
1076 to provide the parameters for the 8250 UART rather than
1077 selecting one of the platform specific options above if
1078 you know the parameters for the port.
1080 This option is preferred over the platform specific
1081 options; the platform specific options are deprecated
1082 and will be soon removed.
1084 config DEBUG_LL_UART_EFM32
1085 bool "Kernel low-level debugging via efm32 UART"
1086 depends on ARCH_EFM32
1088 Say Y here if you want the debug print routines to direct
1089 their output to an UART or USART port on efm32 based
1090 machines. Use the following addresses for DEBUG_UART_PHYS:
1098 config DEBUG_LL_UART_PL01X
1099 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1101 Say Y here if you wish the debug print routes to direct
1102 their output to a PL01x Primecell UART. You can use
1103 this option to provide the parameters for the UART
1104 rather than selecting one of the platform specific
1105 options above if you know the parameters for the port.
1107 This option is preferred over the platform specific
1108 options; the platform specific options are deprecated
1109 and will be soon removed.
1113 config DEBUG_EXYNOS_UART
1116 config DEBUG_S3C2410_UART
1118 select DEBUG_S3C24XX_UART
1120 config DEBUG_S3C24XX_UART
1123 config DEBUG_S5PV210_UART
1126 config DEBUG_OMAP2PLUS_UART
1128 depends on ARCH_OMAP2PLUS
1130 config DEBUG_IMX_UART_PORT
1131 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1132 DEBUG_IMX25_UART || \
1133 DEBUG_IMX21_IMX27_UART || \
1134 DEBUG_IMX31_UART || \
1135 DEBUG_IMX35_UART || \
1136 DEBUG_IMX50_UART || \
1137 DEBUG_IMX51_UART || \
1138 DEBUG_IMX53_UART || \
1139 DEBUG_IMX6Q_UART || \
1140 DEBUG_IMX6SL_UART || \
1145 Choose UART port on which kernel low-level debug messages
1148 config DEBUG_VF_UART_PORT
1149 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1152 depends on SOC_VF610
1154 Choose UART port on which kernel low-level debug messages
1157 config DEBUG_TEGRA_UART
1159 depends on ARCH_TEGRA
1161 config DEBUG_STI_UART
1165 config DEBUG_LL_INCLUDE
1167 default "debug/sa1100.S" if DEBUG_SA1100
1168 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1169 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1170 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1171 default "debug/meson.S" if DEBUG_MESON_UARTAO
1172 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1173 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1174 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1175 default "debug/icedcc.S" if DEBUG_ICEDCC
1176 default "debug/imx.S" if DEBUG_IMX1_UART || \
1177 DEBUG_IMX25_UART || \
1178 DEBUG_IMX21_IMX27_UART || \
1179 DEBUG_IMX31_UART || \
1180 DEBUG_IMX35_UART || \
1181 DEBUG_IMX50_UART || \
1182 DEBUG_IMX51_UART || \
1183 DEBUG_IMX53_UART ||\
1184 DEBUG_IMX6Q_UART || \
1185 DEBUG_IMX6SL_UART || \
1187 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1188 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1189 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1190 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1191 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1192 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1193 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1194 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1195 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1196 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1197 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1198 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1199 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1200 default "debug/sti.S" if DEBUG_STI_UART
1201 default "debug/tegra.S" if DEBUG_TEGRA_UART
1202 default "debug/ux500.S" if DEBUG_UX500_UART
1203 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1204 default "debug/vf.S" if DEBUG_VF_UART
1205 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1206 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1207 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1208 default "mach/debug-macro.S"
1210 # Compatibility options for PL01x
1211 config DEBUG_UART_PL01X
1212 def_bool ARCH_EP93XX || \
1213 ARCH_INTEGRATOR || \
1219 # Compatibility options for 8250
1220 config DEBUG_UART_8250
1221 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1222 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1223 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1224 ARCH_IOP33X || ARCH_IXP4XX || \
1225 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1227 # Compatibility options for BCM63xx
1228 config DEBUG_UART_BCM63XX
1229 def_bool ARCH_BCM_63XX
1231 config DEBUG_UART_PHYS
1232 hex "Physical base address of debug UART"
1233 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1234 default 0x01c28000 if DEBUG_SUNXI_UART0
1235 default 0x01c28400 if DEBUG_SUNXI_UART1
1236 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1237 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1238 default 0x01f02800 if DEBUG_SUNXI_R_UART
1239 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1240 default 0x02531000 if DEBUG_KEYSTONE_UART1
1241 default 0x03010fe0 if ARCH_RPC
1242 default 0x07000000 if DEBUG_SUN9I_UART0
1243 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1244 DEBUG_VEXPRESS_UART0_CA9
1245 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1246 default 0x10124000 if DEBUG_RK3X_UART0
1247 default 0x10126000 if DEBUG_RK3X_UART1
1248 default 0x101f1000 if ARCH_VERSATILE
1249 default 0x101fb000 if DEBUG_NOMADIK_UART
1250 default 0x11002000 if DEBUG_MT8127_UART0
1251 default 0x11006000 if DEBUG_MT6589_UART0
1252 default 0x11009000 if DEBUG_MT8135_UART3
1253 default 0x16000000 if ARCH_INTEGRATOR
1254 default 0x18000300 if DEBUG_BCM_5301X
1255 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1256 default 0x20060000 if DEBUG_RK29_UART0
1257 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1258 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1259 default 0x20201000 if DEBUG_BCM2835
1260 default 0x3e000000 if DEBUG_BCM_KONA_UART
1261 default 0x4000e400 if DEBUG_LL_UART_EFM32
1262 default 0x40090000 if ARCH_LPC32XX
1263 default 0x40100000 if DEBUG_PXA_UART1
1264 default 0x42000000 if ARCH_GEMINI
1265 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1266 DEBUG_S3C2410_UART0)
1267 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1268 DEBUG_S3C2410_UART1)
1269 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1270 DEBUG_S3C2410_UART2)
1271 default 0x78000000 if DEBUG_CNS3XXX
1272 default 0x7c0003f8 if FOOTBRIDGE
1273 default 0x78000000 if DEBUG_CNS3XXX
1274 default 0x80010000 if DEBUG_ASM9260_UART
1275 default 0x80070000 if DEBUG_IMX23_UART
1276 default 0x80074000 if DEBUG_IMX28_UART
1277 default 0x80230000 if DEBUG_PICOXCELL_UART
1278 default 0x808c0000 if ARCH_EP93XX
1279 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1280 default 0xa9a00000 if DEBUG_MSM_UART
1281 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1282 default 0xc0013000 if DEBUG_U300_UART
1283 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1284 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1285 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1286 default 0xd0012000 if DEBUG_MVEBU_UART
1287 default 0xc81004c0 if DEBUG_MESON_UARTAO
1288 default 0xd4017000 if DEBUG_MMP_UART2
1289 default 0xd4018000 if DEBUG_MMP_UART3
1290 default 0xe0000000 if ARCH_SPEAR13XX
1291 default 0xe4007000 if DEBUG_HIP04_UART
1292 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1293 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1294 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1295 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1296 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1297 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1298 default 0xf0000be0 if ARCH_EBSA110
1299 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1300 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1301 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1303 default 0xf7fc9000 if DEBUG_BERLIN_UART
1304 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1305 default 0xf991e000 if DEBUG_QCOM_UARTDM
1306 default 0xfcb00000 if DEBUG_HI3620_UART
1307 default 0xfe800000 if ARCH_IOP32X
1308 default 0xff690000 if DEBUG_RK32_UART2
1309 default 0xffc02000 if DEBUG_SOCFPGA_UART
1310 default 0xffd82340 if ARCH_IOP13XX
1311 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1312 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1313 default 0xfff36000 if DEBUG_HIGHBANK_UART
1314 default 0xfffe8600 if DEBUG_UART_BCM63XX
1315 default 0xfffff700 if ARCH_IOP33X
1316 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1317 DEBUG_LL_UART_EFM32 || \
1318 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1319 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1320 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1321 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1322 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1323 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1324 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1326 config DEBUG_UART_VIRT
1327 hex "Virtual base address of debug UART"
1328 default 0xe0010fe0 if ARCH_RPC
1329 default 0xe1000000 if DEBUG_MSM_UART
1330 default 0xf0000be0 if ARCH_EBSA110
1331 default 0xf0010000 if DEBUG_ASM9260_UART
1332 default 0xf01fb000 if DEBUG_NOMADIK_UART
1333 default 0xf0201000 if DEBUG_BCM2835
1334 default 0xf1000300 if DEBUG_BCM_5301X
1335 default 0xf1002000 if DEBUG_MT8127_UART0
1336 default 0xf1006000 if DEBUG_MT6589_UART0
1337 default 0xf1009000 if DEBUG_MT8135_UART3
1338 default 0xf11f1000 if ARCH_VERSATILE
1339 default 0xf1600000 if ARCH_INTEGRATOR
1340 default 0xf1c28000 if DEBUG_SUNXI_UART0
1341 default 0xf1c28400 if DEBUG_SUNXI_UART1
1342 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1343 default 0xf6200000 if DEBUG_PXA_UART1
1344 default 0xf4090000 if ARCH_LPC32XX
1345 default 0xf4200000 if ARCH_GEMINI
1346 default 0xf7000000 if DEBUG_SUN9I_UART0
1347 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1348 DEBUG_S3C2410_UART0)
1349 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1350 DEBUG_S3C2410_UART1)
1351 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1352 DEBUG_S3C2410_UART2)
1353 default 0xf7fc9000 if DEBUG_BERLIN_UART
1354 default 0xf8007000 if DEBUG_HIP04_UART
1355 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1356 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1357 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1358 default 0xfb002000 if DEBUG_CNS3XXX
1359 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1360 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1361 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1362 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1363 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1364 default 0xfd000000 if ARCH_SPEAR13XX
1365 default 0xfd012000 if ARCH_MV78XX0
1366 default 0xfde12000 if ARCH_DOVE
1367 default 0xfe012000 if ARCH_ORION5X
1368 default 0xf31004c0 if DEBUG_MESON_UARTAO
1369 default 0xfe017000 if DEBUG_MMP_UART2
1370 default 0xfe018000 if DEBUG_MMP_UART3
1371 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1372 default 0xfe230000 if DEBUG_PICOXCELL_UART
1373 default 0xfe300000 if DEBUG_BCM_KONA_UART
1374 default 0xfe800000 if ARCH_IOP32X
1375 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1376 default 0xfeb24000 if DEBUG_RK3X_UART0
1377 default 0xfeb26000 if DEBUG_RK3X_UART1
1378 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1379 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1380 default 0xfec02000 if DEBUG_SOCFPGA_UART
1381 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1382 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1383 default 0xfec90000 if DEBUG_RK32_UART2
1384 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1385 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1386 default 0xfed60000 if DEBUG_RK29_UART0
1387 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1388 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1389 default 0xfedc0000 if ARCH_EP93XX
1390 default 0xfee003f8 if FOOTBRIDGE
1391 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1392 default 0xfee82340 if ARCH_IOP13XX
1393 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1394 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1395 default 0xfef36000 if DEBUG_HIGHBANK_UART
1396 default 0xfefff700 if ARCH_IOP33X
1397 default 0xff003000 if DEBUG_U300_UART
1398 default DEBUG_UART_PHYS if !MMU
1399 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1400 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1401 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1402 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1404 config DEBUG_UART_8250_SHIFT
1405 int "Register offset shift for the 8250 debug UART"
1406 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1407 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1410 config DEBUG_UART_8250_WORD
1411 bool "Use 32-bit accesses for 8250 UART"
1412 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1413 depends on DEBUG_UART_8250_SHIFT >= 2
1414 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1416 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1417 DEBUG_DAVINCI_DA8XX_UART2 || \
1418 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1421 config DEBUG_UART_8250_FLOW_CONTROL
1422 bool "Enable flow control for 8250 UART"
1423 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1424 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1426 config DEBUG_UNCOMPRESS
1428 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1429 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1430 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1432 This option influences the normal decompressor output for
1433 multiplatform kernels. Normally, multiplatform kernels disable
1434 decompressor output because it is not possible to know where to
1435 send the decompressor output.
1437 When this option is set, the selected DEBUG_LL output method
1438 will be re-used for normal decompressor output on multiplatform
1442 config UNCOMPRESS_INCLUDE
1444 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1445 PLAT_SAMSUNG || ARCH_EFM32
1446 default "mach/uncompress.h"
1452 Say Y here if you want to have an early console using the
1453 kernel low-level debugging functions. Add earlyprintk to your
1454 kernel parameters to enable this console.
1456 config ARM_KPROBES_TEST
1457 tristate "Kprobes test module"
1458 depends on KPROBES && MODULES
1460 Perform tests of kprobes API and instruction set simulation.
1462 config PID_IN_CONTEXTIDR
1463 bool "Write the current PID to the CONTEXTIDR register"
1464 depends on CPU_COPY_V6
1466 Enabling this option causes the kernel to write the current PID to
1467 the PROCID field of the CONTEXTIDR register, at the expense of some
1468 additional instructions during context switch. Say Y here only if you
1469 are planning to use hardware trace tools with this kernel.
1471 config DEBUG_SET_MODULE_RONX
1472 bool "Set loadable kernel module data as NX and text as RO"
1475 This option helps catch unintended modifications to loadable
1476 kernel module's text and read-only data. It also prevents execution
1477 of module data. Such protection may interfere with run-time code
1478 patching and dynamic kernel tracing - and they might also protect
1479 against certain classes of kernel exploits.
1480 If in doubt, say "N".
1482 menuconfig CORESIGHT
1483 bool "CoreSight Tracing Support"
1486 This framework provides a kernel interface for the CoreSight debug
1487 and trace drivers to register themselves with. It's intended to build
1488 a topological view of the CoreSight components based on a DT
1489 specification and configure the right serie of components when a
1490 trace source gets enabled.
1493 config CORESIGHT_LINKS_AND_SINKS
1494 bool "CoreSight Link and Sink drivers"
1496 This enables support for CoreSight link and sink drivers that are
1497 responsible for transporting and collecting the trace data
1498 respectively. Link and sinks are dynamically aggregated with a trace
1499 entity at run time to form a complete trace path.
1501 config CORESIGHT_LINK_AND_SINK_TMC
1502 bool "Coresight generic TMC driver"
1503 depends on CORESIGHT_LINKS_AND_SINKS
1505 This enables support for the Trace Memory Controller driver. Depending
1506 on its configuration the device can act as a link (embedded trace router
1507 - ETR) or sink (embedded trace FIFO). The driver complies with the
1508 generic implementation of the component without special enhancement or
1511 config CORESIGHT_SINK_TPIU
1512 bool "Coresight generic TPIU driver"
1513 depends on CORESIGHT_LINKS_AND_SINKS
1515 This enables support for the Trace Port Interface Unit driver, responsible
1516 for bridging the gap between the on-chip coresight components and a trace
1517 port collection engine, typically connected to an external host for use
1518 case capturing more traces than the on-board coresight memory can handle.
1520 config CORESIGHT_SINK_ETBV10
1521 bool "Coresight ETBv1.0 driver"
1522 depends on CORESIGHT_LINKS_AND_SINKS
1524 This enables support for the Embedded Trace Buffer version 1.0 driver
1525 that complies with the generic implementation of the component without
1526 special enhancement or added features.
1528 config CORESIGHT_SOURCE_ETM3X
1529 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1530 select CORESIGHT_LINKS_AND_SINKS
1532 This driver provides support for processor ETM3.x and PTM1.x modules,
1533 which allows tracing the instructions that a processor is executing
1534 This is primarily useful for instruction level tracing. Depending
1535 the ETM version data tracing may also be available.