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_KS8695_UART
401 bool "KS8695 Debug UART"
402 depends on ARCH_KS8695
404 Say Y here if you want kernel low-level debugging support
407 config DEBUG_MESON_UARTAO
408 bool "Kernel low-level debugging via Meson6 UARTAO"
409 depends on ARCH_MESON
411 Say Y here if you want kernel low-lever debugging support
412 on Amlogic Meson6 based platforms on the UARTAO.
414 config DEBUG_MMP_UART2
415 bool "Kernel low-level debugging message via MMP UART2"
417 select DEBUG_UART_8250
419 Say Y here if you want kernel low-level debugging support
422 config DEBUG_MMP_UART3
423 bool "Kernel low-level debugging message via MMP UART3"
425 select DEBUG_UART_8250
427 Say Y here if you want kernel low-level debugging support
430 config DEBUG_MSM_UART
431 bool "Kernel low-level debugging messages via MSM UART"
434 Say Y here if you want the debug print routines to direct
435 their output to the serial port on MSM devices.
437 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
438 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
439 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
440 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
442 MSM7X30 0xaca00000 0xe1000000 UART1
443 MSM7X30 0xacb00000 0xe1000000 UART2
444 MSM7X30 0xacc00000 0xe1000000 UART3
446 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
447 options based on your needs.
449 config DEBUG_QCOM_UARTDM
450 bool "Kernel low-level debugging messages via QCOM UARTDM"
453 Say Y here if you want the debug print routines to direct
454 their output to the serial port on Qualcomm devices.
456 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
457 APQ8084 0xf995e000 0xfa75e000
458 MSM8X60 0x19c40000 0xf0040000
459 MSM8960 0x16440000 0xf0040000
460 MSM8974 0xf991e000 0xfa71e000
462 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
463 options based on your needs.
465 config DEBUG_MVEBU_UART
466 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
467 depends on ARCH_MVEBU
468 select DEBUG_UART_8250
470 Say Y here if you want kernel low-level debugging support
471 on MVEBU based platforms.
473 This option should be used with the old bootloaders
474 that left the internal registers mapped at
475 0xd0000000. As of today, this is the case on
476 platforms such as the Globalscale Mirabox or the
477 Plathome OpenBlocks AX3, when using the original
480 If the wrong DEBUG_MVEBU_UART* option is selected,
481 when u-boot hands over to the kernel, the system
482 silently crashes, with no serial output at all.
484 config DEBUG_MVEBU_UART_ALTERNATE
485 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
486 depends on ARCH_MVEBU
487 select DEBUG_UART_8250
489 Say Y here if you want kernel low-level debugging support
490 on MVEBU based platforms.
492 This option should be used with the new bootloaders
493 that remap the internal registers at 0xf1000000.
495 If the wrong DEBUG_MVEBU_UART* option is selected,
496 when u-boot hands over to the kernel, the system
497 silently crashes, with no serial output at all.
503 Say Y here if you want kernel low-level debugging support
504 on Vybrid based platforms.
506 config DEBUG_NOMADIK_UART
507 bool "Kernel low-level debugging messages via NOMADIK UART"
508 depends on ARCH_NOMADIK
509 select DEBUG_UART_PL01X
511 Say Y here if you want kernel low-level debugging support
512 on NOMADIK based platforms.
514 config DEBUG_NSPIRE_CLASSIC_UART
515 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
516 depends on ARCH_NSPIRE
517 select DEBUG_UART_8250
519 Say Y here if you want kernel low-level debugging support
520 on TI-NSPIRE classic models.
522 config DEBUG_NSPIRE_CX_UART
523 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
524 depends on ARCH_NSPIRE
525 select DEBUG_UART_PL01X
527 Say Y here if you want kernel low-level debugging support
528 on TI-NSPIRE CX models.
530 config DEBUG_OMAP2UART1
531 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
532 depends on ARCH_OMAP2PLUS
533 select DEBUG_OMAP2PLUS_UART
535 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
536 omap3 torpedo and 3530 lv som.
538 config DEBUG_OMAP2UART2
539 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
540 depends on ARCH_OMAP2PLUS
541 select DEBUG_OMAP2PLUS_UART
543 config DEBUG_OMAP2UART3
544 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
545 depends on ARCH_OMAP2PLUS
546 select DEBUG_OMAP2PLUS_UART
548 config DEBUG_OMAP3UART3
549 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
550 depends on ARCH_OMAP2PLUS
551 select DEBUG_OMAP2PLUS_UART
553 This covers at least cm_t3x, beagle, crane, devkit8000,
554 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
557 config DEBUG_OMAP4UART3
558 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
559 depends on ARCH_OMAP2PLUS
560 select DEBUG_OMAP2PLUS_UART
562 config DEBUG_OMAP3UART4
563 bool "Kernel low-level debugging messages via OMAP36XX UART4"
564 depends on ARCH_OMAP2PLUS
565 select DEBUG_OMAP2PLUS_UART
567 config DEBUG_OMAP4UART4
568 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
569 depends on ARCH_OMAP2PLUS
570 select DEBUG_OMAP2PLUS_UART
572 config DEBUG_TI81XXUART1
573 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
574 depends on ARCH_OMAP2PLUS
575 select DEBUG_OMAP2PLUS_UART
577 config DEBUG_TI81XXUART2
578 bool "Kernel low-level debugging messages via TI81XX UART2"
579 depends on ARCH_OMAP2PLUS
580 select DEBUG_OMAP2PLUS_UART
582 config DEBUG_TI81XXUART3
583 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
584 depends on ARCH_OMAP2PLUS
585 select DEBUG_OMAP2PLUS_UART
587 config DEBUG_AM33XXUART1
588 bool "Kernel low-level debugging messages via AM33XX UART1"
589 depends on ARCH_OMAP2PLUS
590 select DEBUG_OMAP2PLUS_UART
592 config DEBUG_ZOOM_UART
593 bool "Kernel low-level debugging messages via Zoom2/3 UART"
594 depends on ARCH_OMAP2PLUS
595 select DEBUG_OMAP2PLUS_UART
597 config DEBUG_PICOXCELL_UART
598 depends on ARCH_PICOXCELL
599 bool "Use PicoXcell UART for low-level debug"
600 select DEBUG_UART_8250
602 Say Y here if you want kernel low-level debugging support
603 on PicoXcell based platforms.
605 config DEBUG_PXA_UART1
607 bool "Use PXA UART1 for low-level debug"
608 select DEBUG_UART_8250
610 Say Y here if you want kernel low-level debugging support
613 config DEBUG_REALVIEW_STD_PORT
614 bool "RealView Default UART"
615 depends on ARCH_REALVIEW
616 select DEBUG_UART_PL01X
618 Say Y here if you want the debug print routines to direct
619 their output to the serial port on RealView EB, PB11MP, PBA8
622 config DEBUG_REALVIEW_PB1176_PORT
623 bool "RealView PB1176 UART"
624 depends on MACH_REALVIEW_PB1176
625 select DEBUG_UART_PL01X
627 Say Y here if you want the debug print routines to direct
628 their output to the standard serial port on the RealView
631 config DEBUG_RK29_UART0
632 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
633 depends on ARCH_ROCKCHIP
634 select DEBUG_UART_8250
636 Say Y here if you want kernel low-level debugging support
637 on Rockchip based platforms.
639 config DEBUG_RK29_UART1
640 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
641 depends on ARCH_ROCKCHIP
642 select DEBUG_UART_8250
644 Say Y here if you want kernel low-level debugging support
645 on Rockchip based platforms.
647 config DEBUG_RK29_UART2
648 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
649 depends on ARCH_ROCKCHIP
650 select DEBUG_UART_8250
652 Say Y here if you want kernel low-level debugging support
653 on Rockchip based platforms.
655 config DEBUG_RK3X_UART0
656 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
657 depends on ARCH_ROCKCHIP
658 select DEBUG_UART_8250
660 Say Y here if you want kernel low-level debugging support
661 on Rockchip based platforms.
663 config DEBUG_RK3X_UART1
664 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
665 depends on ARCH_ROCKCHIP
666 select DEBUG_UART_8250
668 Say Y here if you want kernel low-level debugging support
669 on Rockchip based platforms.
671 config DEBUG_RK3X_UART2
672 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
673 depends on ARCH_ROCKCHIP
674 select DEBUG_UART_8250
676 Say Y here if you want kernel low-level debugging support
677 on Rockchip based platforms.
679 config DEBUG_RK3X_UART3
680 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
681 depends on ARCH_ROCKCHIP
682 select DEBUG_UART_8250
684 Say Y here if you want kernel low-level debugging support
685 on Rockchip based platforms.
687 config DEBUG_RK32_UART2
688 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
689 depends on ARCH_ROCKCHIP
690 select DEBUG_UART_8250
692 Say Y here if you want kernel low-level debugging support
693 on Rockchip RK32xx based platforms.
695 config DEBUG_R7S72100_SCIF2
696 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
697 depends on ARCH_R7S72100
699 Say Y here if you want kernel low-level debugging support
700 via SCIF2 on Renesas RZ/A1H (R7S72100).
702 config DEBUG_RCAR_GEN1_SCIF0
703 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
704 depends on ARCH_R8A7778
706 Say Y here if you want kernel low-level debugging support
707 via SCIF0 on Renesas R-Car M1A (R8A7778).
709 config DEBUG_RCAR_GEN1_SCIF2
710 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
711 depends on ARCH_R8A7779
713 Say Y here if you want kernel low-level debugging support
714 via SCIF2 on Renesas R-Car H1 (R8A7779).
716 config DEBUG_RCAR_GEN2_SCIF0
717 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
718 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
720 Say Y here if you want kernel low-level debugging support
721 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
724 config DEBUG_RCAR_GEN2_SCIF2
725 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
726 depends on ARCH_R8A7794
728 Say Y here if you want kernel low-level debugging support
729 via SCIF2 on Renesas R-Car E2 (R8A7794).
731 config DEBUG_RMOBILE_SCIFA0
732 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
733 depends on ARCH_R8A73A4 || ARCH_SH7372
735 Say Y here if you want kernel low-level debugging support
736 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
739 config DEBUG_RMOBILE_SCIFA1
740 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
741 depends on ARCH_R8A7740
743 Say Y here if you want kernel low-level debugging support
744 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
746 config DEBUG_RMOBILE_SCIFA4
747 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
748 depends on ARCH_SH73A0
750 Say Y here if you want kernel low-level debugging support
751 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
753 config DEBUG_S3C_UART0
754 depends on PLAT_SAMSUNG
755 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
756 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
757 select DEBUG_S5PV210_UART if ARCH_S5PV210
758 bool "Use Samsung S3C UART 0 for low-level debug"
760 Say Y here if you want the debug print routines to direct
761 their output to UART 0. The port must have been initialised
762 by the boot-loader before use.
764 config DEBUG_S3C_UART1
765 depends on PLAT_SAMSUNG
766 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
767 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
768 select DEBUG_S5PV210_UART if ARCH_S5PV210
769 bool "Use Samsung S3C 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_S3C_UART2
776 depends on PLAT_SAMSUNG
777 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
778 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
779 select DEBUG_S5PV210_UART if ARCH_S5PV210
780 bool "Use Samsung S3C UART 2 for low-level debug"
782 Say Y here if you want the debug print routines to direct
783 their output to UART 2. The port must have been initialised
784 by the boot-loader before use.
786 config DEBUG_S3C_UART3
787 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
788 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
789 select DEBUG_S5PV210_UART if ARCH_S5PV210
790 bool "Use Samsung S3C UART 3 for low-level debug"
792 Say Y here if you want the debug print routines to direct
793 their output to UART 3. The port must have been initialised
794 by the boot-loader before use.
796 config DEBUG_S3C2410_UART0
797 depends on ARCH_S3C24XX
798 select DEBUG_S3C2410_UART
799 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
801 Say Y here if you want the debug print routines to direct
802 their output to UART 0. The port must have been initialised
803 by the boot-loader before use.
805 config DEBUG_S3C2410_UART1
806 depends on ARCH_S3C24XX
807 select DEBUG_S3C2410_UART
808 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
810 Say Y here if you want the debug print routines to direct
811 their output to UART 1. The port must have been initialised
812 by the boot-loader before use.
814 config DEBUG_S3C2410_UART2
815 depends on ARCH_S3C24XX
816 select DEBUG_S3C2410_UART
817 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
819 Say Y here if you want the debug print routines to direct
820 their output to UART 2. The port must have been initialised
821 by the boot-loader before use.
824 depends on ARCH_SA1100
825 bool "Use SA1100 UARTs for low-level debug"
827 Say Y here if you want kernel low-level debugging support
828 on SA-11x0 UART ports. The kernel will check for the first
829 enabled UART in a sequence 3-1-2.
831 config DEBUG_SOCFPGA_UART
832 depends on ARCH_SOCFPGA
833 bool "Use SOCFPGA UART for low-level debug"
834 select DEBUG_UART_8250
836 Say Y here if you want kernel low-level debugging support
837 on SOCFPGA based platforms.
839 config DEBUG_SUN9I_UART0
840 bool "Kernel low-level debugging messages via sun9i UART0"
841 depends on MACH_SUN9I
842 select DEBUG_UART_8250
844 Say Y here if you want kernel low-level debugging support
845 on Allwinner A80 based platforms on the UART0.
847 config DEBUG_SUNXI_UART0
848 bool "Kernel low-level debugging messages via sunXi UART0"
849 depends on ARCH_SUNXI
850 select DEBUG_UART_8250
852 Say Y here if you want kernel low-level debugging support
853 on Allwinner A1X based platforms on the UART0.
855 config DEBUG_SUNXI_UART1
856 bool "Kernel low-level debugging messages via sunXi UART1"
857 depends on ARCH_SUNXI
858 select DEBUG_UART_8250
860 Say Y here if you want kernel low-level debugging support
861 on Allwinner A1X based platforms on the UART1.
863 config DEBUG_SUNXI_R_UART
864 bool "Kernel low-level debugging messages via sunXi R_UART"
865 depends on MACH_SUN6I || MACH_SUN8I
866 select DEBUG_UART_8250
868 Say Y here if you want kernel low-level debugging support
869 on Allwinner A31/A23 based platforms on the R_UART.
871 config TEGRA_DEBUG_UART_AUTO_ODMDATA
872 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
873 depends on ARCH_TEGRA
874 select DEBUG_TEGRA_UART
876 Automatically determines which UART to use for low-level
877 debug based on the ODMDATA value. This value is part of
878 the BCT, and is written to the boot memory device using
879 nvflash, or other flashing tool. When bits 19:18 are 3,
880 then bits 17:15 indicate which UART to use; 0/1/2/3/4
883 config TEGRA_DEBUG_UARTA
884 bool "Kernel low-level debugging messages via Tegra UART A"
885 depends on ARCH_TEGRA
886 select DEBUG_TEGRA_UART
888 Say Y here if you want kernel low-level debugging support
889 on Tegra based platforms.
891 config TEGRA_DEBUG_UARTB
892 bool "Kernel low-level debugging messages via Tegra UART B"
893 depends on ARCH_TEGRA
894 select DEBUG_TEGRA_UART
896 Say Y here if you want kernel low-level debugging support
897 on Tegra based platforms.
899 config TEGRA_DEBUG_UARTC
900 bool "Kernel low-level debugging messages via Tegra UART C"
901 depends on ARCH_TEGRA
902 select DEBUG_TEGRA_UART
904 Say Y here if you want kernel low-level debugging support
905 on Tegra based platforms.
907 config TEGRA_DEBUG_UARTD
908 bool "Kernel low-level debugging messages via Tegra UART D"
909 depends on ARCH_TEGRA
910 select DEBUG_TEGRA_UART
912 Say Y here if you want kernel low-level debugging support
913 on Tegra based platforms.
915 config TEGRA_DEBUG_UARTE
916 bool "Kernel low-level debugging messages via Tegra UART E"
917 depends on ARCH_TEGRA
918 select DEBUG_TEGRA_UART
920 Say Y here if you want kernel low-level debugging support
921 on Tegra based platforms.
923 config DEBUG_SIRFPRIMA2_UART1
924 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
925 depends on ARCH_PRIMA2
927 Say Y here if you want the debug print routines to direct
928 their output to the uart1 port on SiRFprimaII devices.
930 config DEBUG_SIRFMARCO_UART1
931 bool "Kernel low-level debugging messages via SiRFmarco UART1"
932 depends on ARCH_MARCO
934 Say Y here if you want the debug print routines to direct
935 their output to the uart1 port on SiRFmarco devices.
937 config STIH41X_DEBUG_ASC2
938 bool "Use StiH415/416 ASC2 UART for low-level debug"
940 select DEBUG_STI_UART
942 Say Y here if you want kernel low-level debugging support
943 on STiH415/416 based platforms like b2000, which has
944 default UART wired up to ASC2.
948 config STIH41X_DEBUG_SBC_ASC1
949 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
951 select DEBUG_STI_UART
953 Say Y here if you want kernel low-level debugging support
954 on STiH415/416 based platforms like b2020. which has
955 default UART wired up to SBC ASC1.
959 config DEBUG_U300_UART
960 bool "Kernel low-level debugging messages via U300 UART0"
962 select DEBUG_UART_PL01X
964 Say Y here if you want the debug print routines to direct
965 their output to the uart port on U300 devices.
967 config DEBUG_UX500_UART
968 depends on ARCH_U8500
969 bool "Use Ux500 UART for low-level debug"
971 Say Y here if you want kernel low-level debugging support
972 on Ux500 based platforms.
974 config DEBUG_MT6589_UART0
975 bool "Mediatek mt6589 UART0"
976 depends on ARCH_MEDIATEK
977 select DEBUG_UART_8250
979 Say Y here if you want kernel low-level debugging support
980 for Mediatek mt6589 based platforms on UART0.
982 config DEBUG_MT8127_UART0
983 bool "Mediatek mt8127 UART0"
984 depends on ARCH_MEDIATEK
985 select DEBUG_UART_8250
987 Say Y here if you want kernel low-level debugging support
988 for Mediatek mt8127 based platforms on UART0.
990 config DEBUG_MT8135_UART3
991 bool "Mediatek mt8135 UART3"
992 depends on ARCH_MEDIATEK
993 select DEBUG_UART_8250
995 Say Y here if you want kernel low-level debugging support
996 for Mediatek mt8135 based platforms on UART3.
998 config DEBUG_VEXPRESS_UART0_DETECT
999 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1000 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1002 This option enables a simple heuristic which tries to determine
1003 the motherboard's memory map variant (original or RS1) and then
1004 choose the relevant UART0 base address.
1006 Note that this will only work with standard A-class core tiles,
1007 and may fail with non-standard SMM or custom software models.
1009 config DEBUG_VEXPRESS_UART0_CA9
1010 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1011 depends on ARCH_VEXPRESS
1012 select DEBUG_UART_PL01X
1014 This option selects UART0 at 0x10009000. Except for custom models,
1015 this applies only to the V2P-CA9 tile.
1017 config DEBUG_VEXPRESS_UART0_RS1
1018 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1019 depends on ARCH_VEXPRESS
1020 select DEBUG_UART_PL01X
1022 This option selects UART0 at 0x1c090000. This applies to most
1023 of the tiles using the RS1 memory map, including all new A-class
1024 core tiles, FPGA-based SMMs and software models.
1026 config DEBUG_VEXPRESS_UART0_CRX
1027 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1028 depends on ARCH_VEXPRESS && !MMU
1029 select DEBUG_UART_PL01X
1031 This option selects UART0 at 0xb0090000. This is appropriate for
1032 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1034 config DEBUG_VT8500_UART0
1035 bool "Use UART0 on VIA/Wondermedia SoCs"
1036 depends on ARCH_VT8500
1038 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1039 devices, including VT8500, WM8505, WM8650 and WM8850.
1042 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1044 Say Y here if you want the debug print routines to direct
1045 their output to the EmbeddedICE macrocell's DCC channel using
1046 co-processor 14. This is known to work on the ARM9 style ICE
1047 channel and on the XScale with the PEEDI.
1049 Note that the system will appear to hang during boot if there
1050 is nothing connected to read from the DCC.
1052 config DEBUG_SEMIHOSTING
1053 bool "Kernel low-level debug output via semihosting I/O"
1055 Semihosting enables code running on an ARM target to use
1056 the I/O facilities on a host debugger/emulator through a
1057 simple SVC call. The host debugger or emulator must have
1058 semihosting enabled for the special svc call to be trapped
1059 otherwise the kernel will crash.
1061 This is known to work with OpenOCD, as well as
1062 ARM's Fast Models, or any other controlling environment
1063 that implements semihosting.
1065 For more details about semihosting, please see
1066 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1068 config DEBUG_LL_UART_8250
1069 bool "Kernel low-level debugging via 8250 UART"
1071 Say Y here if you wish the debug print routes to direct
1072 their output to an 8250 UART. You can use this option
1073 to provide the parameters for the 8250 UART rather than
1074 selecting one of the platform specific options above if
1075 you know the parameters for the port.
1077 This option is preferred over the platform specific
1078 options; the platform specific options are deprecated
1079 and will be soon removed.
1081 config DEBUG_LL_UART_EFM32
1082 bool "Kernel low-level debugging via efm32 UART"
1083 depends on ARCH_EFM32
1085 Say Y here if you want the debug print routines to direct
1086 their output to an UART or USART port on efm32 based
1087 machines. Use the following addresses for DEBUG_UART_PHYS:
1095 config DEBUG_LL_UART_PL01X
1096 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1098 Say Y here if you wish the debug print routes to direct
1099 their output to a PL01x Primecell UART. You can use
1100 this option to provide the parameters for the UART
1101 rather than selecting one of the platform specific
1102 options above if you know the parameters for the port.
1104 This option is preferred over the platform specific
1105 options; the platform specific options are deprecated
1106 and will be soon removed.
1110 config DEBUG_EXYNOS_UART
1113 config DEBUG_S3C2410_UART
1115 select DEBUG_S3C24XX_UART
1117 config DEBUG_S3C24XX_UART
1120 config DEBUG_S5PV210_UART
1123 config DEBUG_OMAP2PLUS_UART
1125 depends on ARCH_OMAP2PLUS
1127 config DEBUG_IMX_UART_PORT
1128 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1129 DEBUG_IMX25_UART || \
1130 DEBUG_IMX21_IMX27_UART || \
1131 DEBUG_IMX31_UART || \
1132 DEBUG_IMX35_UART || \
1133 DEBUG_IMX50_UART || \
1134 DEBUG_IMX51_UART || \
1135 DEBUG_IMX53_UART || \
1136 DEBUG_IMX6Q_UART || \
1137 DEBUG_IMX6SL_UART || \
1142 Choose UART port on which kernel low-level debug messages
1145 config DEBUG_VF_UART_PORT
1146 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1149 depends on SOC_VF610
1151 Choose UART port on which kernel low-level debug messages
1154 config DEBUG_TEGRA_UART
1156 depends on ARCH_TEGRA
1158 config DEBUG_STI_UART
1162 config DEBUG_LL_INCLUDE
1164 default "debug/sa1100.S" if DEBUG_SA1100
1165 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1166 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1167 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1168 default "debug/meson.S" if DEBUG_MESON_UARTAO
1169 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1170 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1171 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1172 default "debug/icedcc.S" if DEBUG_ICEDCC
1173 default "debug/imx.S" if DEBUG_IMX1_UART || \
1174 DEBUG_IMX25_UART || \
1175 DEBUG_IMX21_IMX27_UART || \
1176 DEBUG_IMX31_UART || \
1177 DEBUG_IMX35_UART || \
1178 DEBUG_IMX50_UART || \
1179 DEBUG_IMX51_UART || \
1180 DEBUG_IMX53_UART ||\
1181 DEBUG_IMX6Q_UART || \
1182 DEBUG_IMX6SL_UART || \
1184 default "debug/ks8695.S" if DEBUG_KS8695_UART
1185 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1186 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1187 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1188 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1189 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1190 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1191 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1192 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1193 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1194 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1195 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1196 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1197 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1198 default "debug/sti.S" if DEBUG_STI_UART
1199 default "debug/tegra.S" if DEBUG_TEGRA_UART
1200 default "debug/ux500.S" if DEBUG_UX500_UART
1201 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1202 default "debug/vf.S" if DEBUG_VF_UART
1203 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1204 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1205 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1206 default "mach/debug-macro.S"
1208 # Compatibility options for PL01x
1209 config DEBUG_UART_PL01X
1210 def_bool ARCH_EP93XX || \
1211 ARCH_INTEGRATOR || \
1217 # Compatibility options for 8250
1218 config DEBUG_UART_8250
1219 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1220 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1221 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1222 ARCH_IOP33X || ARCH_IXP4XX || \
1223 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1225 # Compatibility options for BCM63xx
1226 config DEBUG_UART_BCM63XX
1227 def_bool ARCH_BCM_63XX
1229 config DEBUG_UART_PHYS
1230 hex "Physical base address of debug UART"
1231 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1232 default 0x01c28000 if DEBUG_SUNXI_UART0
1233 default 0x01c28400 if DEBUG_SUNXI_UART1
1234 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1235 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1236 default 0x01f02800 if DEBUG_SUNXI_R_UART
1237 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1238 default 0x02531000 if DEBUG_KEYSTONE_UART1
1239 default 0x03010fe0 if ARCH_RPC
1240 default 0x07000000 if DEBUG_SUN9I_UART0
1241 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1242 DEBUG_VEXPRESS_UART0_CA9
1243 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1244 default 0x10124000 if DEBUG_RK3X_UART0
1245 default 0x10126000 if DEBUG_RK3X_UART1
1246 default 0x101f1000 if ARCH_VERSATILE
1247 default 0x101fb000 if DEBUG_NOMADIK_UART
1248 default 0x11002000 if DEBUG_MT8127_UART0
1249 default 0x11006000 if DEBUG_MT6589_UART0
1250 default 0x11009000 if DEBUG_MT8135_UART3
1251 default 0x16000000 if ARCH_INTEGRATOR
1252 default 0x18000300 if DEBUG_BCM_5301X
1253 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1254 default 0x20060000 if DEBUG_RK29_UART0
1255 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1256 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1257 default 0x20201000 if DEBUG_BCM2835
1258 default 0x3e000000 if DEBUG_BCM_KONA_UART
1259 default 0x4000e400 if DEBUG_LL_UART_EFM32
1260 default 0x40090000 if ARCH_LPC32XX
1261 default 0x40100000 if DEBUG_PXA_UART1
1262 default 0x42000000 if ARCH_GEMINI
1263 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1264 DEBUG_S3C2410_UART0)
1265 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1266 DEBUG_S3C2410_UART1)
1267 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1268 DEBUG_S3C2410_UART2)
1269 default 0x78000000 if DEBUG_CNS3XXX
1270 default 0x7c0003f8 if FOOTBRIDGE
1271 default 0x80010000 if DEBUG_ASM9260_UART
1272 default 0x80070000 if DEBUG_IMX23_UART
1273 default 0x80074000 if DEBUG_IMX28_UART
1274 default 0x80230000 if DEBUG_PICOXCELL_UART
1275 default 0x808c0000 if ARCH_EP93XX
1276 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1277 default 0xa9a00000 if DEBUG_MSM_UART
1278 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1279 default 0xc0013000 if DEBUG_U300_UART
1280 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1281 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1282 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1283 default 0xd0012000 if DEBUG_MVEBU_UART
1284 default 0xc81004c0 if DEBUG_MESON_UARTAO
1285 default 0xd4017000 if DEBUG_MMP_UART2
1286 default 0xd4018000 if DEBUG_MMP_UART3
1287 default 0xe0000000 if ARCH_SPEAR13XX
1288 default 0xe4007000 if DEBUG_HIP04_UART
1289 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1290 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1291 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1292 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1293 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1294 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1295 default 0xf0000be0 if ARCH_EBSA110
1296 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1297 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1298 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1300 default 0xf7fc9000 if DEBUG_BERLIN_UART
1301 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1302 default 0xf991e000 if DEBUG_QCOM_UARTDM
1303 default 0xfcb00000 if DEBUG_HI3620_UART
1304 default 0xfe800000 if ARCH_IOP32X
1305 default 0xff690000 if DEBUG_RK32_UART2
1306 default 0xffc02000 if DEBUG_SOCFPGA_UART
1307 default 0xffd82340 if ARCH_IOP13XX
1308 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1309 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1310 default 0xfff36000 if DEBUG_HIGHBANK_UART
1311 default 0xfffe8600 if DEBUG_UART_BCM63XX
1312 default 0xfffff700 if ARCH_IOP33X
1313 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1314 DEBUG_LL_UART_EFM32 || \
1315 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1316 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1317 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1318 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1319 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1320 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1321 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1323 config DEBUG_UART_VIRT
1324 hex "Virtual base address of debug UART"
1325 default 0xe0010fe0 if ARCH_RPC
1326 default 0xe1000000 if DEBUG_MSM_UART
1327 default 0xf0000be0 if ARCH_EBSA110
1328 default 0xf0010000 if DEBUG_ASM9260_UART
1329 default 0xf01fb000 if DEBUG_NOMADIK_UART
1330 default 0xf0201000 if DEBUG_BCM2835
1331 default 0xf1000300 if DEBUG_BCM_5301X
1332 default 0xf1002000 if DEBUG_MT8127_UART0
1333 default 0xf1006000 if DEBUG_MT6589_UART0
1334 default 0xf1009000 if DEBUG_MT8135_UART3
1335 default 0xf11f1000 if ARCH_VERSATILE
1336 default 0xf1600000 if ARCH_INTEGRATOR
1337 default 0xf1c28000 if DEBUG_SUNXI_UART0
1338 default 0xf1c28400 if DEBUG_SUNXI_UART1
1339 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1340 default 0xf6200000 if DEBUG_PXA_UART1
1341 default 0xf4090000 if ARCH_LPC32XX
1342 default 0xf4200000 if ARCH_GEMINI
1343 default 0xf7000000 if DEBUG_SUN9I_UART0
1344 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1345 DEBUG_S3C2410_UART0)
1346 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1347 DEBUG_S3C2410_UART1)
1348 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1349 DEBUG_S3C2410_UART2)
1350 default 0xf7fc9000 if DEBUG_BERLIN_UART
1351 default 0xf8007000 if DEBUG_HIP04_UART
1352 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1353 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1354 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1355 default 0xfb002000 if DEBUG_CNS3XXX
1356 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1357 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1358 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1359 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1360 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1361 default 0xfd000000 if ARCH_SPEAR13XX
1362 default 0xfd012000 if ARCH_MV78XX0
1363 default 0xfde12000 if ARCH_DOVE
1364 default 0xfe012000 if ARCH_ORION5X
1365 default 0xf31004c0 if DEBUG_MESON_UARTAO
1366 default 0xfe017000 if DEBUG_MMP_UART2
1367 default 0xfe018000 if DEBUG_MMP_UART3
1368 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1369 default 0xfe230000 if DEBUG_PICOXCELL_UART
1370 default 0xfe300000 if DEBUG_BCM_KONA_UART
1371 default 0xfe800000 if ARCH_IOP32X
1372 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1373 default 0xfeb24000 if DEBUG_RK3X_UART0
1374 default 0xfeb26000 if DEBUG_RK3X_UART1
1375 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1376 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1377 default 0xfec02000 if DEBUG_SOCFPGA_UART
1378 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1379 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1380 default 0xfec90000 if DEBUG_RK32_UART2
1381 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1382 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1383 default 0xfed60000 if DEBUG_RK29_UART0
1384 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1385 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1386 default 0xfedc0000 if ARCH_EP93XX
1387 default 0xfee003f8 if FOOTBRIDGE
1388 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1389 default 0xfee82340 if ARCH_IOP13XX
1390 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1391 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1392 default 0xfef36000 if DEBUG_HIGHBANK_UART
1393 default 0xfefff700 if ARCH_IOP33X
1394 default 0xff003000 if DEBUG_U300_UART
1395 default DEBUG_UART_PHYS if !MMU
1396 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1397 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1398 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1399 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1401 config DEBUG_UART_8250_SHIFT
1402 int "Register offset shift for the 8250 debug UART"
1403 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1404 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1407 config DEBUG_UART_8250_WORD
1408 bool "Use 32-bit accesses for 8250 UART"
1409 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1410 depends on DEBUG_UART_8250_SHIFT >= 2
1411 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1413 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1414 DEBUG_DAVINCI_DA8XX_UART2 || \
1415 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1418 config DEBUG_UART_8250_FLOW_CONTROL
1419 bool "Enable flow control for 8250 UART"
1420 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1421 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1423 config DEBUG_UNCOMPRESS
1425 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1426 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1427 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1429 This option influences the normal decompressor output for
1430 multiplatform kernels. Normally, multiplatform kernels disable
1431 decompressor output because it is not possible to know where to
1432 send the decompressor output.
1434 When this option is set, the selected DEBUG_LL output method
1435 will be re-used for normal decompressor output on multiplatform
1439 config UNCOMPRESS_INCLUDE
1441 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1442 PLAT_SAMSUNG || ARCH_EFM32
1443 default "mach/uncompress.h"
1449 Say Y here if you want to have an early console using the
1450 kernel low-level debugging functions. Add earlyprintk to your
1451 kernel parameters to enable this console.
1453 config ARM_KPROBES_TEST
1454 tristate "Kprobes test module"
1455 depends on KPROBES && MODULES
1457 Perform tests of kprobes API and instruction set simulation.
1459 config PID_IN_CONTEXTIDR
1460 bool "Write the current PID to the CONTEXTIDR register"
1461 depends on CPU_COPY_V6
1463 Enabling this option causes the kernel to write the current PID to
1464 the PROCID field of the CONTEXTIDR register, at the expense of some
1465 additional instructions during context switch. Say Y here only if you
1466 are planning to use hardware trace tools with this kernel.
1468 config DEBUG_SET_MODULE_RONX
1469 bool "Set loadable kernel module data as NX and text as RO"
1472 This option helps catch unintended modifications to loadable
1473 kernel module's text and read-only data. It also prevents execution
1474 of module data. Such protection may interfere with run-time code
1475 patching and dynamic kernel tracing - and they might also protect
1476 against certain classes of kernel exploits.
1477 If in doubt, say "N".
1479 menuconfig CORESIGHT
1480 bool "CoreSight Tracing Support"
1483 This framework provides a kernel interface for the CoreSight debug
1484 and trace drivers to register themselves with. It's intended to build
1485 a topological view of the CoreSight components based on a DT
1486 specification and configure the right serie of components when a
1487 trace source gets enabled.
1490 config CORESIGHT_LINKS_AND_SINKS
1491 bool "CoreSight Link and Sink drivers"
1493 This enables support for CoreSight link and sink drivers that are
1494 responsible for transporting and collecting the trace data
1495 respectively. Link and sinks are dynamically aggregated with a trace
1496 entity at run time to form a complete trace path.
1498 config CORESIGHT_LINK_AND_SINK_TMC
1499 bool "Coresight generic TMC driver"
1500 depends on CORESIGHT_LINKS_AND_SINKS
1502 This enables support for the Trace Memory Controller driver. Depending
1503 on its configuration the device can act as a link (embedded trace router
1504 - ETR) or sink (embedded trace FIFO). The driver complies with the
1505 generic implementation of the component without special enhancement or
1508 config CORESIGHT_SINK_TPIU
1509 bool "Coresight generic TPIU driver"
1510 depends on CORESIGHT_LINKS_AND_SINKS
1512 This enables support for the Trace Port Interface Unit driver, responsible
1513 for bridging the gap between the on-chip coresight components and a trace
1514 port collection engine, typically connected to an external host for use
1515 case capturing more traces than the on-board coresight memory can handle.
1517 config CORESIGHT_SINK_ETBV10
1518 bool "Coresight ETBv1.0 driver"
1519 depends on CORESIGHT_LINKS_AND_SINKS
1521 This enables support for the Embedded Trace Buffer version 1.0 driver
1522 that complies with the generic implementation of the component without
1523 special enhancement or added features.
1525 config CORESIGHT_SOURCE_ETM3X
1526 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1527 select CORESIGHT_LINKS_AND_SINKS
1529 This driver provides support for processor ETM3.x and PTM1.x modules,
1530 which allows tracing the instructions that a processor is executing
1531 This is primarily useful for instruction level tracing. Depending
1532 the ETM version data tracing may also be available.