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_BASE #
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_BASE
450 APQ8084 0xf995e000 0xfa75e000
451 MSM8X60 0x19c40000 0xf0040000
452 MSM8960 0x16440000 0xf0040000
453 MSM8974 0xf991e000 0xfa71e000
455 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
456 options based on your needs.
458 config DEBUG_MVEBU_UART0
459 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
460 depends on ARCH_MVEBU
461 select DEBUG_UART_8250
463 Say Y here if you want kernel low-level debugging support
464 on MVEBU based platforms on UART0.
466 This option should be used with the old bootloaders
467 that left the internal registers mapped at
468 0xd0000000. As of today, this is the case on
469 platforms such as the Globalscale Mirabox or the
470 Plathome OpenBlocks AX3, when using the original
473 If the wrong DEBUG_MVEBU_UART* option is selected,
474 when u-boot hands over to the kernel, the system
475 silently crashes, with no serial output at all.
477 config DEBUG_MVEBU_UART0_ALTERNATE
478 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
479 depends on ARCH_MVEBU
480 select DEBUG_UART_8250
482 Say Y here if you want kernel low-level debugging support
483 on MVEBU based platforms on UART0.
485 This option should be used with the new bootloaders
486 that remap the internal registers at 0xf1000000.
488 If the wrong DEBUG_MVEBU_UART* option is selected,
489 when u-boot hands over to the kernel, the system
490 silently crashes, with no serial output at all.
492 config DEBUG_MVEBU_UART1_ALTERNATE
493 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
494 depends on ARCH_MVEBU
495 select DEBUG_UART_8250
497 Say Y here if you want kernel low-level debugging support
498 on MVEBU based platforms on UART1.
500 This option should be used with the new bootloaders
501 that remap the internal registers at 0xf1000000.
503 If the wrong DEBUG_MVEBU_UART* option is selected,
504 when u-boot hands over to the kernel, the system
505 silently crashes, with no serial output at all.
511 Say Y here if you want kernel low-level debugging support
512 on Vybrid based platforms.
514 config DEBUG_NOMADIK_UART
515 bool "Kernel low-level debugging messages via NOMADIK UART"
516 depends on ARCH_NOMADIK
517 select DEBUG_UART_PL01X
519 Say Y here if you want kernel low-level debugging support
520 on NOMADIK based platforms.
522 config DEBUG_NSPIRE_CLASSIC_UART
523 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
524 depends on ARCH_NSPIRE
525 select DEBUG_UART_8250
527 Say Y here if you want kernel low-level debugging support
528 on TI-NSPIRE classic models.
530 config DEBUG_NSPIRE_CX_UART
531 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
532 depends on ARCH_NSPIRE
533 select DEBUG_UART_PL01X
535 Say Y here if you want kernel low-level debugging support
536 on TI-NSPIRE CX models.
538 config DEBUG_OMAP2UART1
539 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
540 depends on ARCH_OMAP2PLUS
541 select DEBUG_OMAP2PLUS_UART
543 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
544 omap3 torpedo and 3530 lv som.
546 config DEBUG_OMAP2UART2
547 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
548 depends on ARCH_OMAP2PLUS
549 select DEBUG_OMAP2PLUS_UART
551 config DEBUG_OMAP2UART3
552 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
553 depends on ARCH_OMAP2PLUS
554 select DEBUG_OMAP2PLUS_UART
556 config DEBUG_OMAP3UART3
557 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
558 depends on ARCH_OMAP2PLUS
559 select DEBUG_OMAP2PLUS_UART
561 This covers at least cm_t3x, beagle, crane, devkit8000,
562 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
565 config DEBUG_OMAP4UART3
566 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
567 depends on ARCH_OMAP2PLUS
568 select DEBUG_OMAP2PLUS_UART
570 config DEBUG_OMAP3UART4
571 bool "Kernel low-level debugging messages via OMAP36XX UART4"
572 depends on ARCH_OMAP2PLUS
573 select DEBUG_OMAP2PLUS_UART
575 config DEBUG_OMAP4UART4
576 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
577 depends on ARCH_OMAP2PLUS
578 select DEBUG_OMAP2PLUS_UART
580 config DEBUG_TI81XXUART1
581 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
582 depends on ARCH_OMAP2PLUS
583 select DEBUG_OMAP2PLUS_UART
585 config DEBUG_TI81XXUART2
586 bool "Kernel low-level debugging messages via TI81XX UART2"
587 depends on ARCH_OMAP2PLUS
588 select DEBUG_OMAP2PLUS_UART
590 config DEBUG_TI81XXUART3
591 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
592 depends on ARCH_OMAP2PLUS
593 select DEBUG_OMAP2PLUS_UART
595 config DEBUG_AM33XXUART1
596 bool "Kernel low-level debugging messages via AM33XX UART1"
597 depends on ARCH_OMAP2PLUS
598 select DEBUG_OMAP2PLUS_UART
600 config DEBUG_ZOOM_UART
601 bool "Kernel low-level debugging messages via Zoom2/3 UART"
602 depends on ARCH_OMAP2PLUS
603 select DEBUG_OMAP2PLUS_UART
605 config DEBUG_PICOXCELL_UART
606 depends on ARCH_PICOXCELL
607 bool "Use PicoXcell UART for low-level debug"
608 select DEBUG_UART_8250
610 Say Y here if you want kernel low-level debugging support
611 on PicoXcell based platforms.
613 config DEBUG_PXA_UART1
615 bool "Use PXA UART1 for low-level debug"
616 select DEBUG_UART_8250
618 Say Y here if you want kernel low-level debugging support
621 config DEBUG_REALVIEW_STD_PORT
622 bool "RealView Default UART"
623 depends on ARCH_REALVIEW
624 select DEBUG_UART_PL01X
626 Say Y here if you want the debug print routines to direct
627 their output to the serial port on RealView EB, PB11MP, PBA8
630 config DEBUG_REALVIEW_PB1176_PORT
631 bool "RealView PB1176 UART"
632 depends on MACH_REALVIEW_PB1176
633 select DEBUG_UART_PL01X
635 Say Y here if you want the debug print routines to direct
636 their output to the standard serial port on the RealView
639 config DEBUG_RK29_UART0
640 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
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_UART1
648 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
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_RK29_UART2
656 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
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_UART0
664 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
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_UART1
672 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
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_UART2
680 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
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_RK3X_UART3
688 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
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 based platforms.
695 config DEBUG_RK32_UART2
696 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
697 depends on ARCH_ROCKCHIP
698 select DEBUG_UART_8250
700 Say Y here if you want kernel low-level debugging support
701 on Rockchip RK32xx based platforms.
703 config DEBUG_R7S72100_SCIF2
704 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
705 depends on ARCH_R7S72100
707 Say Y here if you want kernel low-level debugging support
708 via SCIF2 on Renesas RZ/A1H (R7S72100).
710 config DEBUG_RCAR_GEN1_SCIF0
711 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
712 depends on ARCH_R8A7778
714 Say Y here if you want kernel low-level debugging support
715 via SCIF0 on Renesas R-Car M1A (R8A7778).
717 config DEBUG_RCAR_GEN1_SCIF2
718 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
719 depends on ARCH_R8A7779
721 Say Y here if you want kernel low-level debugging support
722 via SCIF2 on Renesas R-Car H1 (R8A7779).
724 config DEBUG_RCAR_GEN2_SCIF0
725 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
726 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
728 Say Y here if you want kernel low-level debugging support
729 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
732 config DEBUG_RCAR_GEN2_SCIF2
733 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
734 depends on ARCH_R8A7794
736 Say Y here if you want kernel low-level debugging support
737 via SCIF2 on Renesas R-Car E2 (R8A7794).
739 config DEBUG_RMOBILE_SCIFA0
740 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
741 depends on ARCH_R8A73A4 || ARCH_SH7372
743 Say Y here if you want kernel low-level debugging support
744 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
747 config DEBUG_RMOBILE_SCIFA1
748 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
749 depends on ARCH_R8A7740
751 Say Y here if you want kernel low-level debugging support
752 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
754 config DEBUG_RMOBILE_SCIFA4
755 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
756 depends on ARCH_SH73A0
758 Say Y here if you want kernel low-level debugging support
759 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
761 config DEBUG_S3C_UART0
762 depends on PLAT_SAMSUNG
763 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
764 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
765 select DEBUG_S5PV210_UART if ARCH_S5PV210
766 bool "Use Samsung S3C UART 0 for low-level debug"
768 Say Y here if you want the debug print routines to direct
769 their output to UART 0. The port must have been initialised
770 by the boot-loader before use.
772 config DEBUG_S3C_UART1
773 depends on PLAT_SAMSUNG
774 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
775 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
776 select DEBUG_S5PV210_UART if ARCH_S5PV210
777 bool "Use Samsung S3C UART 1 for low-level debug"
779 Say Y here if you want the debug print routines to direct
780 their output to UART 1. The port must have been initialised
781 by the boot-loader before use.
783 config DEBUG_S3C_UART2
784 depends on PLAT_SAMSUNG
785 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
786 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
787 select DEBUG_S5PV210_UART if ARCH_S5PV210
788 bool "Use Samsung S3C UART 2 for low-level debug"
790 Say Y here if you want the debug print routines to direct
791 their output to UART 2. The port must have been initialised
792 by the boot-loader before use.
794 config DEBUG_S3C_UART3
795 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
796 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
797 select DEBUG_S5PV210_UART if ARCH_S5PV210
798 bool "Use Samsung S3C UART 3 for low-level debug"
800 Say Y here if you want the debug print routines to direct
801 their output to UART 3. The port must have been initialised
802 by the boot-loader before use.
804 config DEBUG_S3C2410_UART0
805 depends on ARCH_S3C24XX
806 select DEBUG_S3C2410_UART
807 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
809 Say Y here if you want the debug print routines to direct
810 their output to UART 0. The port must have been initialised
811 by the boot-loader before use.
813 config DEBUG_S3C2410_UART1
814 depends on ARCH_S3C24XX
815 select DEBUG_S3C2410_UART
816 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
818 Say Y here if you want the debug print routines to direct
819 their output to UART 1. The port must have been initialised
820 by the boot-loader before use.
822 config DEBUG_S3C2410_UART2
823 depends on ARCH_S3C24XX
824 select DEBUG_S3C2410_UART
825 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
827 Say Y here if you want the debug print routines to direct
828 their output to UART 2. The port must have been initialised
829 by the boot-loader before use.
832 depends on ARCH_SA1100
833 bool "Use SA1100 UARTs for low-level debug"
835 Say Y here if you want kernel low-level debugging support
836 on SA-11x0 UART ports. The kernel will check for the first
837 enabled UART in a sequence 3-1-2.
839 config DEBUG_SOCFPGA_UART
840 depends on ARCH_SOCFPGA
841 bool "Use SOCFPGA UART for low-level debug"
842 select DEBUG_UART_8250
844 Say Y here if you want kernel low-level debugging support
845 on SOCFPGA based platforms.
847 config DEBUG_SUN9I_UART0
848 bool "Kernel low-level debugging messages via sun9i UART0"
849 depends on MACH_SUN9I
850 select DEBUG_UART_8250
852 Say Y here if you want kernel low-level debugging support
853 on Allwinner A80 based platforms on the UART0.
855 config DEBUG_SUNXI_UART0
856 bool "Kernel low-level debugging messages via sunXi UART0"
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 UART0.
863 config DEBUG_SUNXI_UART1
864 bool "Kernel low-level debugging messages via sunXi UART1"
865 depends on ARCH_SUNXI
866 select DEBUG_UART_8250
868 Say Y here if you want kernel low-level debugging support
869 on Allwinner A1X based platforms on the UART1.
871 config DEBUG_SUNXI_R_UART
872 bool "Kernel low-level debugging messages via sunXi R_UART"
873 depends on MACH_SUN6I || MACH_SUN8I
874 select DEBUG_UART_8250
876 Say Y here if you want kernel low-level debugging support
877 on Allwinner A31/A23 based platforms on the R_UART.
879 config TEGRA_DEBUG_UART_AUTO_ODMDATA
880 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
881 depends on ARCH_TEGRA
882 select DEBUG_TEGRA_UART
884 Automatically determines which UART to use for low-level
885 debug based on the ODMDATA value. This value is part of
886 the BCT, and is written to the boot memory device using
887 nvflash, or other flashing tool. When bits 19:18 are 3,
888 then bits 17:15 indicate which UART to use; 0/1/2/3/4
891 config TEGRA_DEBUG_UARTA
892 bool "Kernel low-level debugging messages via Tegra UART A"
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_UARTB
900 bool "Kernel low-level debugging messages via Tegra UART B"
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_UARTC
908 bool "Kernel low-level debugging messages via Tegra UART C"
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_UARTD
916 bool "Kernel low-level debugging messages via Tegra UART D"
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 TEGRA_DEBUG_UARTE
924 bool "Kernel low-level debugging messages via Tegra UART E"
925 depends on ARCH_TEGRA
926 select DEBUG_TEGRA_UART
928 Say Y here if you want kernel low-level debugging support
929 on Tegra based platforms.
931 config DEBUG_SIRFPRIMA2_UART1
932 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
933 depends on ARCH_PRIMA2
935 Say Y here if you want the debug print routines to direct
936 their output to the uart1 port on SiRFprimaII devices.
938 config DEBUG_SIRFMARCO_UART1
939 bool "Kernel low-level debugging messages via SiRFmarco UART1"
940 depends on ARCH_MARCO
942 Say Y here if you want the debug print routines to direct
943 their output to the uart1 port on SiRFmarco devices.
945 config STIH41X_DEBUG_ASC2
946 bool "Use StiH415/416 ASC2 UART for low-level debug"
948 select DEBUG_STI_UART
950 Say Y here if you want kernel low-level debugging support
951 on STiH415/416 based platforms like b2000, which has
952 default UART wired up to ASC2.
956 config STIH41X_DEBUG_SBC_ASC1
957 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
959 select DEBUG_STI_UART
961 Say Y here if you want kernel low-level debugging support
962 on STiH415/416 based platforms like b2020. which has
963 default UART wired up to SBC ASC1.
967 config DEBUG_U300_UART
968 bool "Kernel low-level debugging messages via U300 UART0"
970 select DEBUG_UART_PL01X
972 Say Y here if you want the debug print routines to direct
973 their output to the uart port on U300 devices.
975 config DEBUG_UX500_UART
976 depends on ARCH_U8500
977 bool "Use Ux500 UART for low-level debug"
979 Say Y here if you want kernel low-level debugging support
980 on Ux500 based platforms.
982 config DEBUG_MT6589_UART0
983 bool "Mediatek mt6589 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 mt6589 based platforms on UART0.
990 config DEBUG_MT8127_UART0
991 bool "Mediatek mt8127 UART0"
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 mt8127 based platforms on UART0.
998 config DEBUG_MT8135_UART3
999 bool "Mediatek mt8135 UART3"
1000 depends on ARCH_MEDIATEK
1001 select DEBUG_UART_8250
1003 Say Y here if you want kernel low-level debugging support
1004 for Mediatek mt8135 based platforms on UART3.
1006 config DEBUG_VEXPRESS_UART0_DETECT
1007 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1008 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1010 This option enables a simple heuristic which tries to determine
1011 the motherboard's memory map variant (original or RS1) and then
1012 choose the relevant UART0 base address.
1014 Note that this will only work with standard A-class core tiles,
1015 and may fail with non-standard SMM or custom software models.
1017 config DEBUG_VEXPRESS_UART0_CA9
1018 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1019 depends on ARCH_VEXPRESS
1020 select DEBUG_UART_PL01X
1022 This option selects UART0 at 0x10009000. Except for custom models,
1023 this applies only to the V2P-CA9 tile.
1025 config DEBUG_VEXPRESS_UART0_RS1
1026 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1027 depends on ARCH_VEXPRESS
1028 select DEBUG_UART_PL01X
1030 This option selects UART0 at 0x1c090000. This applies to most
1031 of the tiles using the RS1 memory map, including all new A-class
1032 core tiles, FPGA-based SMMs and software models.
1034 config DEBUG_VEXPRESS_UART0_CRX
1035 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1036 depends on ARCH_VEXPRESS && !MMU
1037 select DEBUG_UART_PL01X
1039 This option selects UART0 at 0xb0090000. This is appropriate for
1040 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1042 config DEBUG_VT8500_UART0
1043 bool "Use UART0 on VIA/Wondermedia SoCs"
1044 depends on ARCH_VT8500
1046 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1047 devices, including VT8500, WM8505, WM8650 and WM8850.
1049 config DEBUG_LL_UART_NONE
1050 bool "No low-level debugging UART"
1051 depends on !ARCH_MULTIPLATFORM
1053 Say Y here if your platform doesn't provide a UART option
1054 above. This relies on your platform choosing the right UART
1055 definition internally in order for low-level debugging to
1059 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1061 Say Y here if you want the debug print routines to direct
1062 their output to the EmbeddedICE macrocell's DCC channel using
1063 co-processor 14. This is known to work on the ARM9 style ICE
1064 channel and on the XScale with the PEEDI.
1066 Note that the system will appear to hang during boot if there
1067 is nothing connected to read from the DCC.
1069 config DEBUG_SEMIHOSTING
1070 bool "Kernel low-level debug output via semihosting I/O"
1072 Semihosting enables code running on an ARM target to use
1073 the I/O facilities on a host debugger/emulator through a
1074 simple SVC call. The host debugger or emulator must have
1075 semihosting enabled for the special svc call to be trapped
1076 otherwise the kernel will crash.
1078 This is known to work with OpenOCD, as well as
1079 ARM's Fast Models, or any other controlling environment
1080 that implements semihosting.
1082 For more details about semihosting, please see
1083 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1085 config DEBUG_LL_UART_8250
1086 bool "Kernel low-level debugging via 8250 UART"
1088 Say Y here if you wish the debug print routes to direct
1089 their output to an 8250 UART. You can use this option
1090 to provide the parameters for the 8250 UART rather than
1091 selecting one of the platform specific options above if
1092 you know the parameters for the port.
1094 This option is preferred over the platform specific
1095 options; the platform specific options are deprecated
1096 and will be soon removed.
1098 config DEBUG_LL_UART_EFM32
1099 bool "Kernel low-level debugging via efm32 UART"
1100 depends on ARCH_EFM32
1102 Say Y here if you want the debug print routines to direct
1103 their output to an UART or USART port on efm32 based
1104 machines. Use the following addresses for DEBUG_UART_PHYS:
1112 config DEBUG_LL_UART_PL01X
1113 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1115 Say Y here if you wish the debug print routes to direct
1116 their output to a PL01x Primecell UART. You can use
1117 this option to provide the parameters for the UART
1118 rather than selecting one of the platform specific
1119 options above if you know the parameters for the port.
1121 This option is preferred over the platform specific
1122 options; the platform specific options are deprecated
1123 and will be soon removed.
1127 config DEBUG_EXYNOS_UART
1130 config DEBUG_S3C2410_UART
1132 select DEBUG_S3C24XX_UART
1134 config DEBUG_S3C24XX_UART
1137 config DEBUG_S5PV210_UART
1140 config DEBUG_OMAP2PLUS_UART
1142 depends on ARCH_OMAP2PLUS
1144 config DEBUG_IMX_UART_PORT
1145 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1146 DEBUG_IMX25_UART || \
1147 DEBUG_IMX21_IMX27_UART || \
1148 DEBUG_IMX31_UART || \
1149 DEBUG_IMX35_UART || \
1150 DEBUG_IMX50_UART || \
1151 DEBUG_IMX51_UART || \
1152 DEBUG_IMX53_UART || \
1153 DEBUG_IMX6Q_UART || \
1154 DEBUG_IMX6SL_UART || \
1159 Choose UART port on which kernel low-level debug messages
1162 config DEBUG_VF_UART_PORT
1163 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1166 depends on SOC_VF610
1168 Choose UART port on which kernel low-level debug messages
1171 config DEBUG_TEGRA_UART
1173 depends on ARCH_TEGRA
1175 config DEBUG_STI_UART
1179 config DEBUG_LL_INCLUDE
1181 default "debug/sa1100.S" if DEBUG_SA1100
1182 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1183 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1184 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1185 default "debug/meson.S" if DEBUG_MESON_UARTAO
1186 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1187 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1188 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1189 default "debug/icedcc.S" if DEBUG_ICEDCC
1190 default "debug/imx.S" if DEBUG_IMX1_UART || \
1191 DEBUG_IMX25_UART || \
1192 DEBUG_IMX21_IMX27_UART || \
1193 DEBUG_IMX31_UART || \
1194 DEBUG_IMX35_UART || \
1195 DEBUG_IMX50_UART || \
1196 DEBUG_IMX51_UART || \
1197 DEBUG_IMX53_UART ||\
1198 DEBUG_IMX6Q_UART || \
1199 DEBUG_IMX6SL_UART || \
1201 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1202 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1203 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1204 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1205 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1206 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1207 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1208 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1209 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1210 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1211 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1212 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1213 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1214 default "debug/sti.S" if DEBUG_STI_UART
1215 default "debug/tegra.S" if DEBUG_TEGRA_UART
1216 default "debug/ux500.S" if DEBUG_UX500_UART
1217 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1218 default "debug/vf.S" if DEBUG_VF_UART
1219 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1220 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1221 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1222 default "mach/debug-macro.S"
1224 # Compatibility options for PL01x
1225 config DEBUG_UART_PL01X
1226 def_bool ARCH_EP93XX || \
1227 ARCH_INTEGRATOR || \
1233 # Compatibility options for 8250
1234 config DEBUG_UART_8250
1235 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1236 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1237 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1238 ARCH_IOP33X || ARCH_IXP4XX || \
1239 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1241 # Compatibility options for BCM63xx
1242 config DEBUG_UART_BCM63XX
1243 def_bool ARCH_BCM_63XX
1245 config DEBUG_UART_PHYS
1246 hex "Physical base address of debug UART"
1247 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1248 default 0x01c28000 if DEBUG_SUNXI_UART0
1249 default 0x01c28400 if DEBUG_SUNXI_UART1
1250 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1251 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1252 default 0x01f02800 if DEBUG_SUNXI_R_UART
1253 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1254 default 0x02531000 if DEBUG_KEYSTONE_UART1
1255 default 0x03010fe0 if ARCH_RPC
1256 default 0x07000000 if DEBUG_SUN9I_UART0
1257 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1258 DEBUG_VEXPRESS_UART0_CA9
1259 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1260 default 0x10124000 if DEBUG_RK3X_UART0
1261 default 0x10126000 if DEBUG_RK3X_UART1
1262 default 0x101f1000 if ARCH_VERSATILE
1263 default 0x101fb000 if DEBUG_NOMADIK_UART
1264 default 0x11002000 if DEBUG_MT8127_UART0
1265 default 0x11006000 if DEBUG_MT6589_UART0
1266 default 0x11009000 if DEBUG_MT8135_UART3
1267 default 0x16000000 if ARCH_INTEGRATOR
1268 default 0x18000300 if DEBUG_BCM_5301X
1269 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1270 default 0x20060000 if DEBUG_RK29_UART0
1271 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1272 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1273 default 0x20201000 if DEBUG_BCM2835
1274 default 0x3e000000 if DEBUG_BCM_KONA_UART
1275 default 0x4000e400 if DEBUG_LL_UART_EFM32
1276 default 0x40090000 if ARCH_LPC32XX
1277 default 0x40100000 if DEBUG_PXA_UART1
1278 default 0x42000000 if ARCH_GEMINI
1279 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1280 DEBUG_S3C2410_UART0)
1281 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1282 DEBUG_S3C2410_UART1)
1283 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1284 DEBUG_S3C2410_UART2)
1285 default 0x78000000 if DEBUG_CNS3XXX
1286 default 0x7c0003f8 if FOOTBRIDGE
1287 default 0x78000000 if DEBUG_CNS3XXX
1288 default 0x80010000 if DEBUG_ASM9260_UART
1289 default 0x80070000 if DEBUG_IMX23_UART
1290 default 0x80074000 if DEBUG_IMX28_UART
1291 default 0x80230000 if DEBUG_PICOXCELL_UART
1292 default 0x808c0000 if ARCH_EP93XX
1293 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1294 default 0xa9a00000 if DEBUG_MSM_UART
1295 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1296 default 0xc0013000 if DEBUG_U300_UART
1297 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1298 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1299 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1300 default 0xd0012000 if DEBUG_MVEBU_UART0
1301 default 0xc81004c0 if DEBUG_MESON_UARTAO
1302 default 0xd4017000 if DEBUG_MMP_UART2
1303 default 0xd4018000 if DEBUG_MMP_UART3
1304 default 0xe0000000 if ARCH_SPEAR13XX
1305 default 0xe4007000 if DEBUG_HIP04_UART
1306 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1307 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1308 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1309 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1310 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1311 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1312 default 0xf0000be0 if ARCH_EBSA110
1313 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1314 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1315 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1316 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1318 default 0xf7fc9000 if DEBUG_BERLIN_UART
1319 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1320 default 0xf991e000 if DEBUG_QCOM_UARTDM
1321 default 0xfcb00000 if DEBUG_HI3620_UART
1322 default 0xfe800000 if ARCH_IOP32X
1323 default 0xff690000 if DEBUG_RK32_UART2
1324 default 0xffc02000 if DEBUG_SOCFPGA_UART
1325 default 0xffd82340 if ARCH_IOP13XX
1326 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1327 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1328 default 0xfff36000 if DEBUG_HIGHBANK_UART
1329 default 0xfffe8600 if DEBUG_UART_BCM63XX
1330 default 0xfffff700 if ARCH_IOP33X
1331 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1332 DEBUG_LL_UART_EFM32 || \
1333 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1334 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1335 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1336 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1337 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1338 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1339 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1341 config DEBUG_UART_VIRT
1342 hex "Virtual base address of debug UART"
1343 default 0xe0010fe0 if ARCH_RPC
1344 default 0xe1000000 if DEBUG_MSM_UART
1345 default 0xf0000be0 if ARCH_EBSA110
1346 default 0xf0010000 if DEBUG_ASM9260_UART
1347 default 0xf01fb000 if DEBUG_NOMADIK_UART
1348 default 0xf0201000 if DEBUG_BCM2835
1349 default 0xf1000300 if DEBUG_BCM_5301X
1350 default 0xf1002000 if DEBUG_MT8127_UART0
1351 default 0xf1006000 if DEBUG_MT6589_UART0
1352 default 0xf1009000 if DEBUG_MT8135_UART3
1353 default 0xf11f1000 if ARCH_VERSATILE
1354 default 0xf1600000 if ARCH_INTEGRATOR
1355 default 0xf1c28000 if DEBUG_SUNXI_UART0
1356 default 0xf1c28400 if DEBUG_SUNXI_UART1
1357 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1358 default 0xf6200000 if DEBUG_PXA_UART1
1359 default 0xf4090000 if ARCH_LPC32XX
1360 default 0xf4200000 if ARCH_GEMINI
1361 default 0xf7000000 if DEBUG_SUN9I_UART0
1362 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1363 DEBUG_S3C2410_UART0)
1364 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1365 DEBUG_S3C2410_UART1)
1366 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1367 DEBUG_S3C2410_UART2)
1368 default 0xf7fc9000 if DEBUG_BERLIN_UART
1369 default 0xf8007000 if DEBUG_HIP04_UART
1370 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1371 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1372 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1373 default 0xfb002000 if DEBUG_CNS3XXX
1374 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1375 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1376 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1377 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1378 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1379 default 0xfd000000 if ARCH_SPEAR13XX
1380 default 0xfd012000 if ARCH_MV78XX0
1381 default 0xfde12000 if ARCH_DOVE
1382 default 0xfe012000 if ARCH_ORION5X
1383 default 0xf31004c0 if DEBUG_MESON_UARTAO
1384 default 0xfe017000 if DEBUG_MMP_UART2
1385 default 0xfe018000 if DEBUG_MMP_UART3
1386 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1387 default 0xfe230000 if DEBUG_PICOXCELL_UART
1388 default 0xfe300000 if DEBUG_BCM_KONA_UART
1389 default 0xfe800000 if ARCH_IOP32X
1390 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1391 default 0xfeb24000 if DEBUG_RK3X_UART0
1392 default 0xfeb26000 if DEBUG_RK3X_UART1
1393 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1394 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1395 default 0xfec02000 if DEBUG_SOCFPGA_UART
1396 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1397 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1398 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1399 default 0xfec90000 if DEBUG_RK32_UART2
1400 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1401 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1402 default 0xfed60000 if DEBUG_RK29_UART0
1403 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1404 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1405 default 0xfedc0000 if ARCH_EP93XX
1406 default 0xfee003f8 if FOOTBRIDGE
1407 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1408 default 0xfee82340 if ARCH_IOP13XX
1409 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1410 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1411 default 0xfef36000 if DEBUG_HIGHBANK_UART
1412 default 0xfefff700 if ARCH_IOP33X
1413 default 0xff003000 if DEBUG_U300_UART
1414 default DEBUG_UART_PHYS if !MMU
1415 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1416 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1417 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1418 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1420 config DEBUG_UART_8250_SHIFT
1421 int "Register offset shift for the 8250 debug UART"
1422 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1423 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1426 config DEBUG_UART_8250_WORD
1427 bool "Use 32-bit accesses for 8250 UART"
1428 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1429 depends on DEBUG_UART_8250_SHIFT >= 2
1430 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1432 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1433 DEBUG_DAVINCI_DA8XX_UART2 || \
1434 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1437 config DEBUG_UART_8250_FLOW_CONTROL
1438 bool "Enable flow control for 8250 UART"
1439 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1440 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1442 config DEBUG_UNCOMPRESS
1444 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1445 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1446 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1448 This option influences the normal decompressor output for
1449 multiplatform kernels. Normally, multiplatform kernels disable
1450 decompressor output because it is not possible to know where to
1451 send the decompressor output.
1453 When this option is set, the selected DEBUG_LL output method
1454 will be re-used for normal decompressor output on multiplatform
1458 config UNCOMPRESS_INCLUDE
1460 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1461 PLAT_SAMSUNG || ARCH_EFM32
1462 default "mach/uncompress.h"
1468 Say Y here if you want to have an early console using the
1469 kernel low-level debugging functions. Add earlyprintk to your
1470 kernel parameters to enable this console.
1472 config ARM_KPROBES_TEST
1473 tristate "Kprobes test module"
1474 depends on KPROBES && MODULES
1476 Perform tests of kprobes API and instruction set simulation.
1478 config PID_IN_CONTEXTIDR
1479 bool "Write the current PID to the CONTEXTIDR register"
1480 depends on CPU_COPY_V6
1482 Enabling this option causes the kernel to write the current PID to
1483 the PROCID field of the CONTEXTIDR register, at the expense of some
1484 additional instructions during context switch. Say Y here only if you
1485 are planning to use hardware trace tools with this kernel.
1487 config DEBUG_SET_MODULE_RONX
1488 bool "Set loadable kernel module data as NX and text as RO"
1491 This option helps catch unintended modifications to loadable
1492 kernel module's text and read-only data. It also prevents execution
1493 of module data. Such protection may interfere with run-time code
1494 patching and dynamic kernel tracing - and they might also protect
1495 against certain classes of kernel exploits.
1496 If in doubt, say "N".
1498 menuconfig CORESIGHT
1499 bool "CoreSight Tracing Support"
1502 This framework provides a kernel interface for the CoreSight debug
1503 and trace drivers to register themselves with. It's intended to build
1504 a topological view of the CoreSight components based on a DT
1505 specification and configure the right serie of components when a
1506 trace source gets enabled.
1509 config CORESIGHT_LINKS_AND_SINKS
1510 bool "CoreSight Link and Sink drivers"
1512 This enables support for CoreSight link and sink drivers that are
1513 responsible for transporting and collecting the trace data
1514 respectively. Link and sinks are dynamically aggregated with a trace
1515 entity at run time to form a complete trace path.
1517 config CORESIGHT_LINK_AND_SINK_TMC
1518 bool "Coresight generic TMC driver"
1519 depends on CORESIGHT_LINKS_AND_SINKS
1521 This enables support for the Trace Memory Controller driver. Depending
1522 on its configuration the device can act as a link (embedded trace router
1523 - ETR) or sink (embedded trace FIFO). The driver complies with the
1524 generic implementation of the component without special enhancement or
1527 config CORESIGHT_SINK_TPIU
1528 bool "Coresight generic TPIU driver"
1529 depends on CORESIGHT_LINKS_AND_SINKS
1531 This enables support for the Trace Port Interface Unit driver, responsible
1532 for bridging the gap between the on-chip coresight components and a trace
1533 port collection engine, typically connected to an external host for use
1534 case capturing more traces than the on-board coresight memory can handle.
1536 config CORESIGHT_SINK_ETBV10
1537 bool "Coresight ETBv1.0 driver"
1538 depends on CORESIGHT_LINKS_AND_SINKS
1540 This enables support for the Embedded Trace Buffer version 1.0 driver
1541 that complies with the generic implementation of the component without
1542 special enhancement or added features.
1544 config CORESIGHT_SOURCE_ETM3X
1545 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1546 select CORESIGHT_LINKS_AND_SINKS
1548 This driver provides support for processor ETM3.x and PTM1.x modules,
1549 which allows tracing the instructions that a processor is executing
1550 This is primarily useful for instruction level tracing. Depending
1551 the ETM version data tracing may also be available.