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_ALPINE_UART0
97 bool "Kernel low-level debugging messages via Alpine UART0"
98 depends on ARCH_ALPINE
99 select DEBUG_UART_8250
101 Say Y here if you want kernel low-level debugging support
102 on Alpine based platforms.
104 config DEBUG_ASM9260_UART
105 bool "Kernel low-level debugging via asm9260 UART"
106 depends on MACH_ASM9260
108 Say Y here if you want the debug print routines to direct
109 their output to an UART or USART port on asm9260 based
112 DEBUG_UART_PHYS | DEBUG_UART_VIRT
114 0x80000000 | 0xf0000000 | UART0
115 0x80004000 | 0xf0004000 | UART1
116 0x80008000 | 0xf0008000 | UART2
117 0x8000c000 | 0xf000c000 | UART3
118 0x80010000 | 0xf0010000 | UART4
119 0x80014000 | 0xf0014000 | UART5
120 0x80018000 | 0xf0018000 | UART6
121 0x8001c000 | 0xf001c000 | UART7
122 0x80020000 | 0xf0020000 | UART8
123 0x80024000 | 0xf0024000 | UART9
125 config AT91_DEBUG_LL_DBGU0
126 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
127 select DEBUG_AT91_UART
129 depends on SOC_AT91RM9200 || SOC_AT91SAM9
131 config AT91_DEBUG_LL_DBGU1
132 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
133 select DEBUG_AT91_UART
135 depends on SOC_AT91SAM9 || SOC_SAMA5
137 config AT91_DEBUG_LL_DBGU2
138 bool "Kernel low-level debugging on sama5d4"
139 select DEBUG_AT91_UART
144 bool "Kernel low-level debugging on BCM2835 PL011 UART"
145 depends on ARCH_BCM2835
146 select DEBUG_UART_PL01X
148 config DEBUG_BCM_5301X
149 bool "Kernel low-level debugging on BCM5301X UART1"
150 depends on ARCH_BCM_5301X
151 select DEBUG_UART_8250
153 config DEBUG_BCM_KONA_UART
154 bool "Kernel low-level debugging messages via BCM KONA UART"
155 depends on ARCH_BCM_MOBILE
156 select DEBUG_UART_8250
158 Say Y here if you want kernel low-level debugging support
159 on Broadcom SoC platforms.
160 This low level debug works for Broadcom
161 mobile SoCs in the Kona family of chips (e.g. bcm28155,
165 bool "Kernel low-level debugging on BCM63XX UART"
166 depends on ARCH_BCM_63XX
167 select DEBUG_UART_BCM63XX
169 config DEBUG_BERLIN_UART
170 bool "Marvell Berlin SoC Debug UART"
171 depends on ARCH_BERLIN
172 select DEBUG_UART_8250
174 Say Y here if you want kernel low-level debugging support
175 on Marvell Berlin SoC based platforms.
177 config DEBUG_BRCMSTB_UART
178 bool "Use BRCMSTB UART for low-level debug"
179 depends on ARCH_BRCMSTB
180 select DEBUG_UART_8250
182 Say Y here if you want the debug print routines to direct
183 their output to the first serial port on these devices.
185 If you have a Broadcom STB chip and would like early print
186 messages to appear over the UART, select this option.
188 config DEBUG_CLPS711X_UART1
189 bool "Kernel low-level debugging messages via UART1"
190 depends on ARCH_CLPS711X
192 Say Y here if you want the debug print routines to direct
193 their output to the first serial port on these devices.
195 config DEBUG_CLPS711X_UART2
196 bool "Kernel low-level debugging messages via UART2"
197 depends on ARCH_CLPS711X
199 Say Y here if you want the debug print routines to direct
200 their output to the second serial port on these devices.
203 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
204 depends on ARCH_CNS3XXX
205 select DEBUG_UART_8250
207 Say Y here if you want the debug print routines to direct
208 their output to the CNS3xxx UART0.
210 config DEBUG_DAVINCI_DA8XX_UART1
211 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
212 depends on ARCH_DAVINCI_DA8XX
213 select DEBUG_UART_8250
215 Say Y here if you want the debug print routines to direct
216 their output to UART1 serial port on DaVinci DA8XX devices.
218 config DEBUG_DAVINCI_DA8XX_UART2
219 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
220 depends on ARCH_DAVINCI_DA8XX
221 select DEBUG_UART_8250
223 Say Y here if you want the debug print routines to direct
224 their output to UART2 serial port on DaVinci DA8XX devices.
226 config DEBUG_DAVINCI_DMx_UART0
227 bool "Kernel low-level debugging on DaVinci DMx using UART0"
228 depends on ARCH_DAVINCI_DMx
229 select DEBUG_UART_8250
231 Say Y here if you want the debug print routines to direct
232 their output to UART0 serial port on DaVinci DMx devices.
234 config DEBUG_ZYNQ_UART0
235 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
238 Say Y here if you want the debug print routines to direct
239 their output to UART0 on the Zynq platform.
241 config DEBUG_ZYNQ_UART1
242 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
245 Say Y here if you want the debug print routines to direct
246 their output to UART1 on the Zynq platform.
248 If you have a ZC702 board and want early boot messages to
249 appear on the USB serial adaptor, select this option.
251 config DEBUG_DC21285_PORT
252 bool "Kernel low-level debugging messages via footbridge serial port"
253 depends on FOOTBRIDGE
255 Say Y here if you want the debug print routines to direct
256 their output to the serial port in the DC21285 (Footbridge).
258 config DEBUG_DIGICOLOR_UA0
259 bool "Kernel low-level debugging messages via Digicolor UA0"
260 depends on ARCH_DIGICOLOR
262 Say Y here if you want the debug print routines to direct
263 their output to the UA0 serial port in the CX92755.
265 config DEBUG_FOOTBRIDGE_COM1
266 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
267 depends on FOOTBRIDGE
269 Say Y here if you want the debug print routines to direct
270 their output to the 8250 at PCI COM1.
272 config DEBUG_HI3620_UART
273 bool "Hisilicon HI3620 Debug UART"
274 depends on ARCH_HI3xxx
275 select DEBUG_UART_PL01X
277 Say Y here if you want kernel low-level debugging support
280 config DEBUG_HI3716_UART
281 bool "Hisilicon Hi3716 Debug UART"
282 depends on ARCH_HI3xxx
283 select DEBUG_UART_PL01X
285 Say Y here if you want kernel low-level debugging support
288 config DEBUG_HIGHBANK_UART
289 bool "Kernel low-level debugging messages via Highbank UART"
290 depends on ARCH_HIGHBANK
291 select DEBUG_UART_PL01X
293 Say Y here if you want the debug print routines to direct
294 their output to the UART on Highbank based devices.
296 config DEBUG_HIP01_UART
297 bool "Hisilicon Hip01 Debug UART"
298 depends on ARCH_HIP01
299 select DEBUG_UART_8250
301 Say Y here if you want kernel low-level debugging support
304 config DEBUG_HIP04_UART
305 bool "Hisilicon HiP04 Debug UART"
306 depends on ARCH_HIP04
307 select DEBUG_UART_8250
309 Say Y here if you want kernel low-level debugging support
312 config DEBUG_HIX5HD2_UART
313 bool "Hisilicon Hix5hd2 Debug UART"
314 depends on ARCH_HIX5HD2
315 select DEBUG_UART_PL01X
317 Say Y here if you want kernel low-level debugging support
320 config DEBUG_IMX1_UART
321 bool "i.MX1 Debug UART"
324 Say Y here if you want kernel low-level debugging support
327 config DEBUG_IMX23_UART
328 bool "i.MX23 Debug UART"
330 select DEBUG_UART_PL01X
332 Say Y here if you want kernel low-level debugging support
335 config DEBUG_IMX25_UART
336 bool "i.MX25 Debug UART"
339 Say Y here if you want kernel low-level debugging support
342 config DEBUG_IMX21_IMX27_UART
343 bool "i.MX21 and i.MX27 Debug UART"
344 depends on SOC_IMX21 || SOC_IMX27
346 Say Y here if you want kernel low-level debugging support
349 config DEBUG_IMX28_UART
350 bool "i.MX28 Debug UART"
352 select DEBUG_UART_PL01X
354 Say Y here if you want kernel low-level debugging support
357 config DEBUG_IMX31_UART
358 bool "i.MX31 Debug UART"
361 Say Y here if you want kernel low-level debugging support
364 config DEBUG_IMX35_UART
365 bool "i.MX35 Debug UART"
368 Say Y here if you want kernel low-level debugging support
371 config DEBUG_IMX50_UART
372 bool "i.MX50 Debug UART"
375 Say Y here if you want kernel low-level debugging support
378 config DEBUG_IMX51_UART
379 bool "i.MX51 Debug UART"
382 Say Y here if you want kernel low-level debugging support
385 config DEBUG_IMX53_UART
386 bool "i.MX53 Debug UART"
389 Say Y here if you want kernel low-level debugging support
392 config DEBUG_IMX6Q_UART
393 bool "i.MX6Q/DL Debug UART"
396 Say Y here if you want kernel low-level debugging support
399 config DEBUG_IMX6SL_UART
400 bool "i.MX6SL Debug UART"
401 depends on SOC_IMX6SL
403 Say Y here if you want kernel low-level debugging support
406 config DEBUG_IMX6SX_UART
407 bool "i.MX6SX Debug UART"
408 depends on SOC_IMX6SX
410 Say Y here if you want kernel low-level debugging support
413 config DEBUG_KEYSTONE_UART0
414 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
415 depends on ARCH_KEYSTONE
416 select DEBUG_UART_8250
418 Say Y here if you want the debug print routines to direct
419 their output to UART0 serial port on KEYSTONE2 devices.
421 config DEBUG_KEYSTONE_UART1
422 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
423 depends on ARCH_KEYSTONE
424 select DEBUG_UART_8250
426 Say Y here if you want the debug print routines to direct
427 their output to UART1 serial port on KEYSTONE2 devices.
429 config DEBUG_KS8695_UART
430 bool "KS8695 Debug UART"
431 depends on ARCH_KS8695
433 Say Y here if you want kernel low-level debugging support
436 config DEBUG_MESON_UARTAO
437 bool "Kernel low-level debugging via Meson6 UARTAO"
438 depends on ARCH_MESON
440 Say Y here if you want kernel low-lever debugging support
441 on Amlogic Meson6 based platforms on the UARTAO.
443 config DEBUG_MMP_UART2
444 bool "Kernel low-level debugging message via MMP UART2"
446 select DEBUG_UART_8250
448 Say Y here if you want kernel low-level debugging support
451 config DEBUG_MMP_UART3
452 bool "Kernel low-level debugging message via MMP UART3"
454 select DEBUG_UART_8250
456 Say Y here if you want kernel low-level debugging support
459 config DEBUG_MSM_UART
460 bool "Kernel low-level debugging messages via MSM UART"
463 Say Y here if you want the debug print routines to direct
464 their output to the serial port on MSM devices.
466 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT #
467 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
468 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
469 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
471 MSM7X30 0xaca00000 0xe1000000 UART1
472 MSM7X30 0xacb00000 0xe1000000 UART2
473 MSM7X30 0xacc00000 0xe1000000 UART3
475 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
476 options based on your needs.
478 config DEBUG_QCOM_UARTDM
479 bool "Kernel low-level debugging messages via QCOM UARTDM"
482 Say Y here if you want the debug print routines to direct
483 their output to the serial port on Qualcomm devices.
485 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
486 APQ8064 0x16640000 0xf0040000
487 APQ8084 0xf995e000 0xfa75e000
488 MSM8X60 0x19c40000 0xf0040000
489 MSM8960 0x16440000 0xf0040000
490 MSM8974 0xf991e000 0xfa71e000
492 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
493 options based on your needs.
495 config DEBUG_MVEBU_UART0
496 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
497 depends on ARCH_MVEBU
498 select DEBUG_UART_8250
500 Say Y here if you want kernel low-level debugging support
501 on MVEBU based platforms on UART0.
503 This option should be used with the old bootloaders
504 that left the internal registers mapped at
505 0xd0000000. As of today, this is the case on
506 platforms such as the Globalscale Mirabox or the
507 Plathome OpenBlocks AX3, when using the original
510 If the wrong DEBUG_MVEBU_UART* option is selected,
511 when u-boot hands over to the kernel, the system
512 silently crashes, with no serial output at all.
514 config DEBUG_MVEBU_UART0_ALTERNATE
515 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
516 depends on ARCH_MVEBU
517 select DEBUG_UART_8250
519 Say Y here if you want kernel low-level debugging support
520 on MVEBU based platforms on UART0.
522 This option should be used with the new bootloaders
523 that remap the internal registers at 0xf1000000.
525 If the wrong DEBUG_MVEBU_UART* option is selected,
526 when u-boot hands over to the kernel, the system
527 silently crashes, with no serial output at all.
529 config DEBUG_MVEBU_UART1_ALTERNATE
530 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
531 depends on ARCH_MVEBU
532 select DEBUG_UART_8250
534 Say Y here if you want kernel low-level debugging support
535 on MVEBU based platforms on UART1.
537 This option should be used with the new bootloaders
538 that remap the internal registers at 0xf1000000.
540 If the wrong DEBUG_MVEBU_UART* option is selected,
541 when u-boot hands over to the kernel, the system
542 silently crashes, with no serial output at all.
548 Say Y here if you want kernel low-level debugging support
549 on Vybrid based platforms.
551 config DEBUG_NETX_UART
552 bool "Kernel low-level debugging messages via NetX UART"
555 Say Y here if you want kernel low-level debugging support
556 on Hilscher NetX based platforms.
558 config DEBUG_NOMADIK_UART
559 bool "Kernel low-level debugging messages via NOMADIK UART"
560 depends on ARCH_NOMADIK
561 select DEBUG_UART_PL01X
563 Say Y here if you want kernel low-level debugging support
564 on NOMADIK based platforms.
566 config DEBUG_NSPIRE_CLASSIC_UART
567 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
568 depends on ARCH_NSPIRE
569 select DEBUG_UART_8250
571 Say Y here if you want kernel low-level debugging support
572 on TI-NSPIRE classic models.
574 config DEBUG_NSPIRE_CX_UART
575 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
576 depends on ARCH_NSPIRE
577 select DEBUG_UART_PL01X
579 Say Y here if you want kernel low-level debugging support
580 on TI-NSPIRE CX models.
582 config DEBUG_OMAP1UART1
583 bool "Kernel low-level debugging via OMAP1 UART1"
584 depends on ARCH_OMAP1
585 select DEBUG_UART_8250
587 Say Y here if you want kernel low-level debugging support
588 on OMAP1 based platforms (except OMAP730) on the UART1.
590 config DEBUG_OMAP1UART2
591 bool "Kernel low-level debugging via OMAP1 UART2"
592 depends on ARCH_OMAP1
593 select DEBUG_UART_8250
595 Say Y here if you want kernel low-level debugging support
596 on OMAP1 based platforms (except OMAP730) on the UART2.
598 config DEBUG_OMAP1UART3
599 bool "Kernel low-level debugging via OMAP1 UART3"
600 depends on ARCH_OMAP1
601 select DEBUG_UART_8250
603 Say Y here if you want kernel low-level debugging support
604 on OMAP1 based platforms (except OMAP730) on the UART3.
606 config DEBUG_OMAP2UART1
607 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
608 depends on ARCH_OMAP2PLUS
609 select DEBUG_OMAP2PLUS_UART
611 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
612 omap3 torpedo and 3530 lv som.
614 config DEBUG_OMAP2UART2
615 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
616 depends on ARCH_OMAP2PLUS
617 select DEBUG_OMAP2PLUS_UART
619 config DEBUG_OMAP2UART3
620 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
621 depends on ARCH_OMAP2PLUS
622 select DEBUG_OMAP2PLUS_UART
624 config DEBUG_OMAP3UART3
625 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
626 depends on ARCH_OMAP2PLUS
627 select DEBUG_OMAP2PLUS_UART
629 This covers at least cm_t3x, beagle, crane, devkit8000,
630 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
633 config DEBUG_OMAP4UART3
634 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
635 depends on ARCH_OMAP2PLUS
636 select DEBUG_OMAP2PLUS_UART
638 config DEBUG_OMAP3UART4
639 bool "Kernel low-level debugging messages via OMAP36XX UART4"
640 depends on ARCH_OMAP2PLUS
641 select DEBUG_OMAP2PLUS_UART
643 config DEBUG_OMAP4UART4
644 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
645 depends on ARCH_OMAP2PLUS
646 select DEBUG_OMAP2PLUS_UART
648 config DEBUG_OMAP7XXUART1
649 bool "Kernel low-level debugging via OMAP730 UART1"
650 depends on ARCH_OMAP730
651 select DEBUG_UART_8250
653 Say Y here if you want kernel low-level debugging support
654 on OMAP730 based platforms on the UART1.
656 config DEBUG_OMAP7XXUART2
657 bool "Kernel low-level debugging via OMAP730 UART2"
658 depends on ARCH_OMAP730
659 select DEBUG_UART_8250
661 Say Y here if you want kernel low-level debugging support
662 on OMAP730 based platforms on the UART2.
664 config DEBUG_OMAP7XXUART3
665 bool "Kernel low-level debugging via OMAP730 UART3"
666 depends on ARCH_OMAP730
667 select DEBUG_UART_8250
669 Say Y here if you want kernel low-level debugging support
670 on OMAP730 based platforms on the UART3.
672 config DEBUG_TI81XXUART1
673 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
674 depends on ARCH_OMAP2PLUS
675 select DEBUG_OMAP2PLUS_UART
677 config DEBUG_TI81XXUART2
678 bool "Kernel low-level debugging messages via TI81XX UART2"
679 depends on ARCH_OMAP2PLUS
680 select DEBUG_OMAP2PLUS_UART
682 config DEBUG_TI81XXUART3
683 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
684 depends on ARCH_OMAP2PLUS
685 select DEBUG_OMAP2PLUS_UART
687 config DEBUG_AM33XXUART1
688 bool "Kernel low-level debugging messages via AM33XX UART1"
689 depends on ARCH_OMAP2PLUS
690 select DEBUG_OMAP2PLUS_UART
692 config DEBUG_ZOOM_UART
693 bool "Kernel low-level debugging messages via Zoom2/3 UART"
694 depends on ARCH_OMAP2PLUS
695 select DEBUG_OMAP2PLUS_UART
697 config DEBUG_PICOXCELL_UART
698 depends on ARCH_PICOXCELL
699 bool "Use PicoXcell UART for low-level debug"
700 select DEBUG_UART_8250
702 Say Y here if you want kernel low-level debugging support
703 on PicoXcell based platforms.
705 config DEBUG_PXA_UART1
707 bool "Use PXA UART1 for low-level debug"
708 select DEBUG_UART_8250
710 Say Y here if you want kernel low-level debugging support
713 config DEBUG_REALVIEW_STD_PORT
714 bool "RealView Default UART"
715 depends on ARCH_REALVIEW
716 select DEBUG_UART_PL01X
718 Say Y here if you want the debug print routines to direct
719 their output to the serial port on RealView EB, PB11MP, PBA8
722 config DEBUG_REALVIEW_PB1176_PORT
723 bool "RealView PB1176 UART"
724 depends on MACH_REALVIEW_PB1176
725 select DEBUG_UART_PL01X
727 Say Y here if you want the debug print routines to direct
728 their output to the standard serial port on the RealView
731 config DEBUG_RK29_UART0
732 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
733 depends on ARCH_ROCKCHIP
734 select DEBUG_UART_8250
736 Say Y here if you want kernel low-level debugging support
737 on Rockchip based platforms.
739 config DEBUG_RK29_UART1
740 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
741 depends on ARCH_ROCKCHIP
742 select DEBUG_UART_8250
744 Say Y here if you want kernel low-level debugging support
745 on Rockchip based platforms.
747 config DEBUG_RK29_UART2
748 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
749 depends on ARCH_ROCKCHIP
750 select DEBUG_UART_8250
752 Say Y here if you want kernel low-level debugging support
753 on Rockchip based platforms.
755 config DEBUG_RK3X_UART0
756 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
757 depends on ARCH_ROCKCHIP
758 select DEBUG_UART_8250
760 Say Y here if you want kernel low-level debugging support
761 on Rockchip based platforms.
763 config DEBUG_RK3X_UART1
764 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
765 depends on ARCH_ROCKCHIP
766 select DEBUG_UART_8250
768 Say Y here if you want kernel low-level debugging support
769 on Rockchip based platforms.
771 config DEBUG_RK3X_UART2
772 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
773 depends on ARCH_ROCKCHIP
774 select DEBUG_UART_8250
776 Say Y here if you want kernel low-level debugging support
777 on Rockchip based platforms.
779 config DEBUG_RK3X_UART3
780 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
781 depends on ARCH_ROCKCHIP
782 select DEBUG_UART_8250
784 Say Y here if you want kernel low-level debugging support
785 on Rockchip based platforms.
787 config DEBUG_RK32_UART2
788 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
789 depends on ARCH_ROCKCHIP
790 select DEBUG_UART_8250
792 Say Y here if you want kernel low-level debugging support
793 on Rockchip RK32xx based platforms.
795 config DEBUG_R7S72100_SCIF2
796 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
797 depends on ARCH_R7S72100
799 Say Y here if you want kernel low-level debugging support
800 via SCIF2 on Renesas RZ/A1H (R7S72100).
802 config DEBUG_RCAR_GEN1_SCIF0
803 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
804 depends on ARCH_R8A7778
806 Say Y here if you want kernel low-level debugging support
807 via SCIF0 on Renesas R-Car M1A (R8A7778).
809 config DEBUG_RCAR_GEN1_SCIF2
810 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
811 depends on ARCH_R8A7779
813 Say Y here if you want kernel low-level debugging support
814 via SCIF2 on Renesas R-Car H1 (R8A7779).
816 config DEBUG_RCAR_GEN2_SCIF0
817 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
818 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
820 Say Y here if you want kernel low-level debugging support
821 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
824 config DEBUG_RCAR_GEN2_SCIF2
825 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
826 depends on ARCH_R8A7794
828 Say Y here if you want kernel low-level debugging support
829 via SCIF2 on Renesas R-Car E2 (R8A7794).
831 config DEBUG_RMOBILE_SCIFA0
832 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
833 depends on ARCH_R8A73A4 || ARCH_SH7372
835 Say Y here if you want kernel low-level debugging support
836 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
839 config DEBUG_RMOBILE_SCIFA1
840 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
841 depends on ARCH_R8A7740
843 Say Y here if you want kernel low-level debugging support
844 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
846 config DEBUG_RMOBILE_SCIFA4
847 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
848 depends on ARCH_SH73A0
850 Say Y here if you want kernel low-level debugging support
851 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
853 config DEBUG_S3C_UART0
854 depends on PLAT_SAMSUNG
855 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
856 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
857 select DEBUG_S5PV210_UART if ARCH_S5PV210
858 bool "Use Samsung S3C UART 0 for low-level debug"
860 Say Y here if you want the debug print routines to direct
861 their output to UART 0. The port must have been initialised
862 by the boot-loader before use.
864 config DEBUG_S3C_UART1
865 depends on PLAT_SAMSUNG
866 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
867 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
868 select DEBUG_S5PV210_UART if ARCH_S5PV210
869 bool "Use Samsung S3C UART 1 for low-level debug"
871 Say Y here if you want the debug print routines to direct
872 their output to UART 1. The port must have been initialised
873 by the boot-loader before use.
875 config DEBUG_S3C_UART2
876 depends on PLAT_SAMSUNG
877 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
878 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
879 select DEBUG_S5PV210_UART if ARCH_S5PV210
880 bool "Use Samsung S3C UART 2 for low-level debug"
882 Say Y here if you want the debug print routines to direct
883 their output to UART 2. The port must have been initialised
884 by the boot-loader before use.
886 config DEBUG_S3C_UART3
887 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
888 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
889 select DEBUG_S5PV210_UART if ARCH_S5PV210
890 bool "Use Samsung S3C UART 3 for low-level debug"
892 Say Y here if you want the debug print routines to direct
893 their output to UART 3. The port must have been initialised
894 by the boot-loader before use.
896 config DEBUG_S3C2410_UART0
897 depends on ARCH_S3C24XX
898 select DEBUG_S3C2410_UART
899 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
901 Say Y here if you want the debug print routines to direct
902 their output to UART 0. The port must have been initialised
903 by the boot-loader before use.
905 config DEBUG_S3C2410_UART1
906 depends on ARCH_S3C24XX
907 select DEBUG_S3C2410_UART
908 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
910 Say Y here if you want the debug print routines to direct
911 their output to UART 1. The port must have been initialised
912 by the boot-loader before use.
914 config DEBUG_S3C2410_UART2
915 depends on ARCH_S3C24XX
916 select DEBUG_S3C2410_UART
917 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
919 Say Y here if you want the debug print routines to direct
920 their output to UART 2. The port must have been initialised
921 by the boot-loader before use.
924 depends on ARCH_SA1100
925 bool "Use SA1100 UARTs for low-level debug"
927 Say Y here if you want kernel low-level debugging support
928 on SA-11x0 UART ports. The kernel will check for the first
929 enabled UART in a sequence 3-1-2.
931 config DEBUG_SOCFPGA_UART
932 depends on ARCH_SOCFPGA
933 bool "Use SOCFPGA UART for low-level debug"
934 select DEBUG_UART_8250
936 Say Y here if you want kernel low-level debugging support
937 on SOCFPGA based platforms.
939 config DEBUG_SUN9I_UART0
940 bool "Kernel low-level debugging messages via sun9i UART0"
941 depends on MACH_SUN9I
942 select DEBUG_UART_8250
944 Say Y here if you want kernel low-level debugging support
945 on Allwinner A80 based platforms on the UART0.
947 config DEBUG_SUNXI_UART0
948 bool "Kernel low-level debugging messages via sunXi UART0"
949 depends on ARCH_SUNXI
950 select DEBUG_UART_8250
952 Say Y here if you want kernel low-level debugging support
953 on Allwinner A1X based platforms on the UART0.
955 config DEBUG_SUNXI_UART1
956 bool "Kernel low-level debugging messages via sunXi UART1"
957 depends on ARCH_SUNXI
958 select DEBUG_UART_8250
960 Say Y here if you want kernel low-level debugging support
961 on Allwinner A1X based platforms on the UART1.
963 config DEBUG_SUNXI_R_UART
964 bool "Kernel low-level debugging messages via sunXi R_UART"
965 depends on MACH_SUN6I || MACH_SUN8I
966 select DEBUG_UART_8250
968 Say Y here if you want kernel low-level debugging support
969 on Allwinner A31/A23 based platforms on the R_UART.
971 config TEGRA_DEBUG_UART_AUTO_ODMDATA
972 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
973 depends on ARCH_TEGRA
974 select DEBUG_TEGRA_UART
976 Automatically determines which UART to use for low-level
977 debug based on the ODMDATA value. This value is part of
978 the BCT, and is written to the boot memory device using
979 nvflash, or other flashing tool. When bits 19:18 are 3,
980 then bits 17:15 indicate which UART to use; 0/1/2/3/4
983 config TEGRA_DEBUG_UARTA
984 bool "Kernel low-level debugging messages via Tegra UART A"
985 depends on ARCH_TEGRA
986 select DEBUG_TEGRA_UART
988 Say Y here if you want kernel low-level debugging support
989 on Tegra based platforms.
991 config TEGRA_DEBUG_UARTB
992 bool "Kernel low-level debugging messages via Tegra UART B"
993 depends on ARCH_TEGRA
994 select DEBUG_TEGRA_UART
996 Say Y here if you want kernel low-level debugging support
997 on Tegra based platforms.
999 config TEGRA_DEBUG_UARTC
1000 bool "Kernel low-level debugging messages via Tegra UART C"
1001 depends on ARCH_TEGRA
1002 select DEBUG_TEGRA_UART
1004 Say Y here if you want kernel low-level debugging support
1005 on Tegra based platforms.
1007 config TEGRA_DEBUG_UARTD
1008 bool "Kernel low-level debugging messages via Tegra UART D"
1009 depends on ARCH_TEGRA
1010 select DEBUG_TEGRA_UART
1012 Say Y here if you want kernel low-level debugging support
1013 on Tegra based platforms.
1015 config TEGRA_DEBUG_UARTE
1016 bool "Kernel low-level debugging messages via Tegra UART E"
1017 depends on ARCH_TEGRA
1018 select DEBUG_TEGRA_UART
1020 Say Y here if you want kernel low-level debugging support
1021 on Tegra based platforms.
1023 config DEBUG_SIRFPRIMA2_UART1
1024 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1025 depends on ARCH_PRIMA2
1026 select DEBUG_SIRFSOC_UART
1028 Say Y here if you want the debug print routines to direct
1029 their output to the uart1 port on SiRFprimaII devices.
1031 config DEBUG_SIRFATLAS7_UART0
1032 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1033 depends on ARCH_ATLAS7
1034 select DEBUG_SIRFSOC_UART
1036 Say Y here if you want the debug print routines to direct
1037 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1038 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1039 debug port can be very useful.
1041 config DEBUG_SIRFATLAS7_UART1
1042 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1043 depends on ARCH_ATLAS7
1044 select DEBUG_SIRFSOC_UART
1046 Say Y here if you want the debug print routines to direct
1047 their output to the uart1 port on SiRFATLAS7 devices.
1049 config STIH41X_DEBUG_ASC2
1050 bool "Use StiH415/416 ASC2 UART for low-level debug"
1052 select DEBUG_STI_UART
1054 Say Y here if you want kernel low-level debugging support
1055 on STiH415/416 based platforms like b2000, which has
1056 default UART wired up to ASC2.
1060 config STIH41X_DEBUG_SBC_ASC1
1061 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1063 select DEBUG_STI_UART
1065 Say Y here if you want kernel low-level debugging support
1066 on STiH415/416 based platforms like b2020. which has
1067 default UART wired up to SBC ASC1.
1071 config DEBUG_U300_UART
1072 bool "Kernel low-level debugging messages via U300 UART0"
1073 depends on ARCH_U300
1074 select DEBUG_UART_PL01X
1076 Say Y here if you want the debug print routines to direct
1077 their output to the uart port on U300 devices.
1079 config DEBUG_UX500_UART
1080 depends on ARCH_U8500
1081 bool "Use Ux500 UART for low-level debug"
1083 Say Y here if you want kernel low-level debugging support
1084 on Ux500 based platforms.
1086 config DEBUG_MT6589_UART0
1087 bool "Mediatek mt6589 UART0"
1088 depends on ARCH_MEDIATEK
1089 select DEBUG_UART_8250
1091 Say Y here if you want kernel low-level debugging support
1092 for Mediatek mt6589 based platforms on UART0.
1094 config DEBUG_MT8127_UART0
1095 bool "Mediatek mt8127/mt6592 UART0"
1096 depends on ARCH_MEDIATEK
1097 select DEBUG_UART_8250
1099 Say Y here if you want kernel low-level debugging support
1100 for Mediatek mt8127 based platforms on UART0.
1102 config DEBUG_MT8135_UART3
1103 bool "Mediatek mt8135 UART3"
1104 depends on ARCH_MEDIATEK
1105 select DEBUG_UART_8250
1107 Say Y here if you want kernel low-level debugging support
1108 for Mediatek mt8135 based platforms on UART3.
1110 config DEBUG_VEXPRESS_UART0_DETECT
1111 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1112 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1114 This option enables a simple heuristic which tries to determine
1115 the motherboard's memory map variant (original or RS1) and then
1116 choose the relevant UART0 base address.
1118 Note that this will only work with standard A-class core tiles,
1119 and may fail with non-standard SMM or custom software models.
1121 config DEBUG_VEXPRESS_UART0_CA9
1122 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1123 depends on ARCH_VEXPRESS
1124 select DEBUG_UART_PL01X
1126 This option selects UART0 at 0x10009000. Except for custom models,
1127 this applies only to the V2P-CA9 tile.
1129 config DEBUG_VEXPRESS_UART0_RS1
1130 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1131 depends on ARCH_VEXPRESS
1132 select DEBUG_UART_PL01X
1134 This option selects UART0 at 0x1c090000. This applies to most
1135 of the tiles using the RS1 memory map, including all new A-class
1136 core tiles, FPGA-based SMMs and software models.
1138 config DEBUG_VEXPRESS_UART0_CRX
1139 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1140 depends on ARCH_VEXPRESS && !MMU
1141 select DEBUG_UART_PL01X
1143 This option selects UART0 at 0xb0090000. This is appropriate for
1144 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1146 config DEBUG_VT8500_UART0
1147 bool "Use UART0 on VIA/Wondermedia SoCs"
1148 depends on ARCH_VT8500
1150 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1151 devices, including VT8500, WM8505, WM8650 and WM8850.
1154 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1156 Say Y here if you want the debug print routines to direct
1157 their output to the EmbeddedICE macrocell's DCC channel using
1158 co-processor 14. This is known to work on the ARM9 style ICE
1159 channel and on the XScale with the PEEDI.
1161 Note that the system will appear to hang during boot if there
1162 is nothing connected to read from the DCC.
1164 config DEBUG_SEMIHOSTING
1165 bool "Kernel low-level debug output via semihosting I/O"
1167 Semihosting enables code running on an ARM target to use
1168 the I/O facilities on a host debugger/emulator through a
1169 simple SVC call. The host debugger or emulator must have
1170 semihosting enabled for the special svc call to be trapped
1171 otherwise the kernel will crash.
1173 This is known to work with OpenOCD, as well as
1174 ARM's Fast Models, or any other controlling environment
1175 that implements semihosting.
1177 For more details about semihosting, please see
1178 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1180 config DEBUG_LL_UART_8250
1181 bool "Kernel low-level debugging via 8250 UART"
1183 Say Y here if you wish the debug print routes to direct
1184 their output to an 8250 UART. You can use this option
1185 to provide the parameters for the 8250 UART rather than
1186 selecting one of the platform specific options above if
1187 you know the parameters for the port.
1189 This option is preferred over the platform specific
1190 options; the platform specific options are deprecated
1191 and will be soon removed.
1193 config DEBUG_LL_UART_EFM32
1194 bool "Kernel low-level debugging via efm32 UART"
1195 depends on ARCH_EFM32
1197 Say Y here if you want the debug print routines to direct
1198 their output to an UART or USART port on efm32 based
1199 machines. Use the following addresses for DEBUG_UART_PHYS:
1207 config DEBUG_LL_UART_PL01X
1208 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1210 Say Y here if you wish the debug print routes to direct
1211 their output to a PL01x Primecell UART. You can use
1212 this option to provide the parameters for the UART
1213 rather than selecting one of the platform specific
1214 options above if you know the parameters for the port.
1216 This option is preferred over the platform specific
1217 options; the platform specific options are deprecated
1218 and will be soon removed.
1222 config DEBUG_AT91_UART
1224 depends on ARCH_AT91
1226 config DEBUG_EXYNOS_UART
1229 config DEBUG_S3C2410_UART
1231 select DEBUG_S3C24XX_UART
1233 config DEBUG_S3C24XX_UART
1236 config DEBUG_S5PV210_UART
1239 config DEBUG_OMAP2PLUS_UART
1241 depends on ARCH_OMAP2PLUS
1243 config DEBUG_IMX_UART_PORT
1244 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1245 DEBUG_IMX25_UART || \
1246 DEBUG_IMX21_IMX27_UART || \
1247 DEBUG_IMX31_UART || \
1248 DEBUG_IMX35_UART || \
1249 DEBUG_IMX50_UART || \
1250 DEBUG_IMX51_UART || \
1251 DEBUG_IMX53_UART || \
1252 DEBUG_IMX6Q_UART || \
1253 DEBUG_IMX6SL_UART || \
1258 Choose UART port on which kernel low-level debug messages
1261 config DEBUG_VF_UART_PORT
1262 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1265 depends on SOC_VF610
1267 Choose UART port on which kernel low-level debug messages
1270 config DEBUG_TEGRA_UART
1272 depends on ARCH_TEGRA
1274 config DEBUG_STI_UART
1278 config DEBUG_SIRFSOC_UART
1280 depends on ARCH_SIRF
1282 config DEBUG_LL_INCLUDE
1284 default "debug/sa1100.S" if DEBUG_SA1100
1285 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1286 default "debug/at91.S" if DEBUG_AT91_UART
1287 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1288 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1289 default "debug/meson.S" if DEBUG_MESON_UARTAO
1290 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1291 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1292 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1293 default "debug/icedcc.S" if DEBUG_ICEDCC
1294 default "debug/imx.S" if DEBUG_IMX1_UART || \
1295 DEBUG_IMX25_UART || \
1296 DEBUG_IMX21_IMX27_UART || \
1297 DEBUG_IMX31_UART || \
1298 DEBUG_IMX35_UART || \
1299 DEBUG_IMX50_UART || \
1300 DEBUG_IMX51_UART || \
1301 DEBUG_IMX53_UART ||\
1302 DEBUG_IMX6Q_UART || \
1303 DEBUG_IMX6SL_UART || \
1305 default "debug/ks8695.S" if DEBUG_KS8695_UART
1306 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1307 default "debug/netx.S" if DEBUG_NETX_UART
1308 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1309 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1310 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1311 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1312 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1313 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1314 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1315 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1316 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1317 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1318 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1319 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1320 default "debug/sti.S" if DEBUG_STI_UART
1321 default "debug/tegra.S" if DEBUG_TEGRA_UART
1322 default "debug/ux500.S" if DEBUG_UX500_UART
1323 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1324 default "debug/vf.S" if DEBUG_VF_UART
1325 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1326 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1327 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1328 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1329 default "mach/debug-macro.S"
1331 # Compatibility options for PL01x
1332 config DEBUG_UART_PL01X
1335 # Compatibility options for 8250
1336 config DEBUG_UART_8250
1337 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1338 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1339 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1340 ARCH_IOP33X || ARCH_IXP4XX || \
1341 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1343 # Compatibility options for BCM63xx
1344 config DEBUG_UART_BCM63XX
1345 def_bool ARCH_BCM_63XX
1347 config DEBUG_UART_PHYS
1348 hex "Physical base address of debug UART"
1349 default 0x00100a00 if DEBUG_NETX_UART
1350 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1351 default 0x01c28000 if DEBUG_SUNXI_UART0
1352 default 0x01c28400 if DEBUG_SUNXI_UART1
1353 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1354 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1355 default 0x01f02800 if DEBUG_SUNXI_R_UART
1356 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1357 default 0x02531000 if DEBUG_KEYSTONE_UART1
1358 default 0x03010fe0 if ARCH_RPC
1359 default 0x07000000 if DEBUG_SUN9I_UART0
1360 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1361 DEBUG_VEXPRESS_UART0_CA9
1362 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1363 default 0x10124000 if DEBUG_RK3X_UART0
1364 default 0x10126000 if DEBUG_RK3X_UART1
1365 default 0x101f1000 if ARCH_VERSATILE
1366 default 0x101fb000 if DEBUG_NOMADIK_UART
1367 default 0x11002000 if DEBUG_MT8127_UART0
1368 default 0x11006000 if DEBUG_MT6589_UART0
1369 default 0x11009000 if DEBUG_MT8135_UART3
1370 default 0x16000000 if ARCH_INTEGRATOR
1371 default 0x18000300 if DEBUG_BCM_5301X
1372 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1373 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1374 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1375 default 0x20001000 if DEBUG_HIP01_UART
1376 default 0x20060000 if DEBUG_RK29_UART0
1377 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1378 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1379 default 0x20201000 if DEBUG_BCM2835
1380 default 0x3e000000 if DEBUG_BCM_KONA_UART
1381 default 0x4000e400 if DEBUG_LL_UART_EFM32
1382 default 0x40090000 if ARCH_LPC32XX
1383 default 0x40100000 if DEBUG_PXA_UART1
1384 default 0x42000000 if ARCH_GEMINI
1385 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1386 DEBUG_S3C2410_UART0)
1387 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1388 DEBUG_S3C2410_UART1)
1389 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1390 DEBUG_S3C2410_UART2)
1391 default 0x78000000 if DEBUG_CNS3XXX
1392 default 0x7c0003f8 if FOOTBRIDGE
1393 default 0x80010000 if DEBUG_ASM9260_UART
1394 default 0x80070000 if DEBUG_IMX23_UART
1395 default 0x80074000 if DEBUG_IMX28_UART
1396 default 0x80230000 if DEBUG_PICOXCELL_UART
1397 default 0x808c0000 if ARCH_EP93XX
1398 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1399 default 0xa9a00000 if DEBUG_MSM_UART
1400 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1401 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1402 default 0xc0013000 if DEBUG_U300_UART
1403 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1404 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1405 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1406 default 0xd0012000 if DEBUG_MVEBU_UART0
1407 default 0xc81004c0 if DEBUG_MESON_UARTAO
1408 default 0xd4017000 if DEBUG_MMP_UART2
1409 default 0xd4018000 if DEBUG_MMP_UART3
1410 default 0xe0000000 if ARCH_SPEAR13XX
1411 default 0xe4007000 if DEBUG_HIP04_UART
1412 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1413 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1414 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1415 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1416 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1417 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1418 default 0xf0000be0 if ARCH_EBSA110
1419 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1420 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1421 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1422 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1424 default 0xf7fc9000 if DEBUG_BERLIN_UART
1425 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1426 default 0xf991e000 if DEBUG_QCOM_UARTDM
1427 default 0xfcb00000 if DEBUG_HI3620_UART
1428 default 0xfd883000 if DEBUG_ALPINE_UART0
1429 default 0xfe800000 if ARCH_IOP32X
1430 default 0xff690000 if DEBUG_RK32_UART2
1431 default 0xffc02000 if DEBUG_SOCFPGA_UART
1432 default 0xffd82340 if ARCH_IOP13XX
1433 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1434 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1435 default 0xfff36000 if DEBUG_HIGHBANK_UART
1436 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1437 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1438 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1439 default 0xfffe8600 if DEBUG_UART_BCM63XX
1440 default 0xfffff700 if ARCH_IOP33X
1441 depends on ARCH_EP93XX || \
1442 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1443 DEBUG_LL_UART_EFM32 || \
1444 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1445 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1446 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1447 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1448 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1449 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1450 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1451 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1452 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1454 config DEBUG_UART_VIRT
1455 hex "Virtual base address of debug UART"
1456 default 0xe0000a00 if DEBUG_NETX_UART
1457 default 0xe0010fe0 if ARCH_RPC
1458 default 0xe1000000 if DEBUG_MSM_UART
1459 default 0xf0000be0 if ARCH_EBSA110
1460 default 0xf0010000 if DEBUG_ASM9260_UART
1461 default 0xf01fb000 if DEBUG_NOMADIK_UART
1462 default 0xf0201000 if DEBUG_BCM2835
1463 default 0xf1000300 if DEBUG_BCM_5301X
1464 default 0xf1002000 if DEBUG_MT8127_UART0
1465 default 0xf1006000 if DEBUG_MT6589_UART0
1466 default 0xf1009000 if DEBUG_MT8135_UART3
1467 default 0xf11f1000 if ARCH_VERSATILE
1468 default 0xf1600000 if ARCH_INTEGRATOR
1469 default 0xf1c28000 if DEBUG_SUNXI_UART0
1470 default 0xf1c28400 if DEBUG_SUNXI_UART1
1471 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1472 default 0xf6200000 if DEBUG_PXA_UART1
1473 default 0xf4090000 if ARCH_LPC32XX
1474 default 0xf4200000 if ARCH_GEMINI
1475 default 0xf7000000 if DEBUG_SUN9I_UART0
1476 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1477 DEBUG_S3C2410_UART0)
1478 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1479 DEBUG_S3C2410_UART1)
1480 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1481 DEBUG_S3C2410_UART2)
1482 default 0xf7fc9000 if DEBUG_BERLIN_UART
1483 default 0xf8007000 if DEBUG_HIP04_UART
1484 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1485 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1486 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1487 default 0xfb002000 if DEBUG_CNS3XXX
1488 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1489 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1490 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1491 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1492 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1493 default 0xfd000000 if ARCH_SPEAR13XX
1494 default 0xfd012000 if ARCH_MV78XX0
1495 default 0xfd883000 if DEBUG_ALPINE_UART0
1496 default 0xfde12000 if ARCH_DOVE
1497 default 0xfe012000 if ARCH_ORION5X
1498 default 0xf31004c0 if DEBUG_MESON_UARTAO
1499 default 0xfe017000 if DEBUG_MMP_UART2
1500 default 0xfe018000 if DEBUG_MMP_UART3
1501 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1502 default 0xfe230000 if DEBUG_PICOXCELL_UART
1503 default 0xfe300000 if DEBUG_BCM_KONA_UART
1504 default 0xfe800000 if ARCH_IOP32X
1505 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1506 default 0xfeb24000 if DEBUG_RK3X_UART0
1507 default 0xfeb26000 if DEBUG_RK3X_UART1
1508 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1509 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1510 default 0xfec02000 if DEBUG_SOCFPGA_UART
1511 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1512 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1513 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1514 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1515 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1516 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1517 default 0xfec90000 if DEBUG_RK32_UART2
1518 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1519 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1520 default 0xfed60000 if DEBUG_RK29_UART0
1521 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1522 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1523 default 0xfedc0000 if ARCH_EP93XX
1524 default 0xfee003f8 if FOOTBRIDGE
1525 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1526 default 0xfee82340 if ARCH_IOP13XX
1527 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1528 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1529 default 0xfef36000 if DEBUG_HIGHBANK_UART
1530 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1531 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1532 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1533 default 0xfefff700 if ARCH_IOP33X
1534 default 0xff003000 if DEBUG_U300_UART
1535 default 0xffd01000 if DEBUG_HIP01_UART
1536 default DEBUG_UART_PHYS if !MMU
1537 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1538 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1539 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1540 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1541 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1542 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1544 config DEBUG_UART_8250_SHIFT
1545 int "Register offset shift for the 8250 debug UART"
1546 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1547 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
1548 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1551 config DEBUG_UART_8250_WORD
1552 bool "Use 32-bit accesses for 8250 UART"
1553 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1554 depends on DEBUG_UART_8250_SHIFT >= 2
1555 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1556 ARCH_KEYSTONE || DEBUG_ALPINE_UART0 || \
1557 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1558 DEBUG_DAVINCI_DA8XX_UART2 || \
1559 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1562 config DEBUG_UART_8250_FLOW_CONTROL
1563 bool "Enable flow control for 8250 UART"
1564 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1565 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1567 config DEBUG_UNCOMPRESS
1569 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1570 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1571 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1573 This option influences the normal decompressor output for
1574 multiplatform kernels. Normally, multiplatform kernels disable
1575 decompressor output because it is not possible to know where to
1576 send the decompressor output.
1578 When this option is set, the selected DEBUG_LL output method
1579 will be re-used for normal decompressor output on multiplatform
1583 config UNCOMPRESS_INCLUDE
1585 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1586 PLAT_SAMSUNG || ARCH_EFM32
1587 default "mach/uncompress.h"
1593 Say Y here if you want to have an early console using the
1594 kernel low-level debugging functions. Add earlyprintk to your
1595 kernel parameters to enable this console.
1597 config ARM_KPROBES_TEST
1598 tristate "Kprobes test module"
1599 depends on KPROBES && MODULES
1601 Perform tests of kprobes API and instruction set simulation.
1603 config PID_IN_CONTEXTIDR
1604 bool "Write the current PID to the CONTEXTIDR register"
1605 depends on CPU_COPY_V6
1607 Enabling this option causes the kernel to write the current PID to
1608 the PROCID field of the CONTEXTIDR register, at the expense of some
1609 additional instructions during context switch. Say Y here only if you
1610 are planning to use hardware trace tools with this kernel.
1612 config DEBUG_SET_MODULE_RONX
1613 bool "Set loadable kernel module data as NX and text as RO"
1616 This option helps catch unintended modifications to loadable
1617 kernel module's text and read-only data. It also prevents execution
1618 of module data. Such protection may interfere with run-time code
1619 patching and dynamic kernel tracing - and they might also protect
1620 against certain classes of kernel exploits.
1621 If in doubt, say "N".
1623 menuconfig CORESIGHT
1624 bool "CoreSight Tracing Support"
1627 This framework provides a kernel interface for the CoreSight debug
1628 and trace drivers to register themselves with. It's intended to build
1629 a topological view of the CoreSight components based on a DT
1630 specification and configure the right serie of components when a
1631 trace source gets enabled.
1634 config CORESIGHT_LINKS_AND_SINKS
1635 bool "CoreSight Link and Sink drivers"
1637 This enables support for CoreSight link and sink drivers that are
1638 responsible for transporting and collecting the trace data
1639 respectively. Link and sinks are dynamically aggregated with a trace
1640 entity at run time to form a complete trace path.
1642 config CORESIGHT_LINK_AND_SINK_TMC
1643 bool "Coresight generic TMC driver"
1644 depends on CORESIGHT_LINKS_AND_SINKS
1646 This enables support for the Trace Memory Controller driver. Depending
1647 on its configuration the device can act as a link (embedded trace router
1648 - ETR) or sink (embedded trace FIFO). The driver complies with the
1649 generic implementation of the component without special enhancement or
1652 config CORESIGHT_SINK_TPIU
1653 bool "Coresight generic TPIU driver"
1654 depends on CORESIGHT_LINKS_AND_SINKS
1656 This enables support for the Trace Port Interface Unit driver, responsible
1657 for bridging the gap between the on-chip coresight components and a trace
1658 port collection engine, typically connected to an external host for use
1659 case capturing more traces than the on-board coresight memory can handle.
1661 config CORESIGHT_SINK_ETBV10
1662 bool "Coresight ETBv1.0 driver"
1663 depends on CORESIGHT_LINKS_AND_SINKS
1665 This enables support for the Embedded Trace Buffer version 1.0 driver
1666 that complies with the generic implementation of the component without
1667 special enhancement or added features.
1669 config CORESIGHT_SOURCE_ETM3X
1670 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1671 select CORESIGHT_LINKS_AND_SINKS
1673 This driver provides support for processor ETM3.x and PTM1.x modules,
1674 which allows tracing the instructions that a processor is executing
1675 This is primarily useful for instruction level tracing. Depending
1676 the ETM version data tracing may also be available.