3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
11 Say Y here if you want to show the kernel pagetable layout in a
12 debugfs file. This information is only useful for kernel developers
13 who are working in architecture specific areas of the kernel.
14 It is probably not a good idea to enable this feature in a production
18 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
19 # If you know what you are doing and are willing to live without stack
20 # traces, you can get a slightly smaller kernel by setting this option to
21 # n, but then RMK will have to kill you ;).
24 depends on !THUMB2_KERNEL
25 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
27 If you say N here, the resulting kernel will be slightly smaller and
28 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
29 when a problem occurs with the kernel, the information that is
30 reported is severely limited.
33 bool "Enable stack unwinding support (EXPERIMENTAL)"
37 This option enables stack unwinding support in the kernel
38 using the information automatically generated by the
39 compiler. The resulting kernel image is slightly bigger but
40 the performance is not affected. Currently, this feature
41 only works with EABI compilers. If unsure say Y.
45 depends on FUNCTION_TRACER && FRAME_POINTER
49 bool "Verbose user fault messages"
51 When a user program crashes due to an exception, the kernel can
52 print a brief message explaining what the problem was. This is
53 sometimes helpful for debugging but serves no purpose on a
54 production system. Most people should say N here.
56 In addition, you need to pass user_debug=N on the kernel command
57 line to enable this feature. N consists of the sum of:
59 1 - undefined instruction events
61 4 - invalid data aborts
65 # These options are only for real kernel hackers who want to get their hands dirty.
67 bool "Kernel low-level debugging functions (read help!)"
68 depends on DEBUG_KERNEL
70 Say Y here to include definitions of printascii, printch, printhex
71 in the kernel. This is helpful if you are debugging code that
72 executes before the console is initialized.
74 Note that selecting this option will limit the kernel to a single
75 UART definition, as specified below. Attempting to boot the kernel
76 image on a different platform *will not work*, so this option should
77 not be enabled for kernels that are intended to be portable.
80 prompt "Kernel low-level debugging port"
83 config DEBUG_ALPINE_UART0
84 bool "Kernel low-level debugging messages via Alpine UART0"
85 depends on ARCH_ALPINE
86 select DEBUG_UART_8250
88 Say Y here if you want kernel low-level debugging support
89 on Alpine based platforms.
91 config DEBUG_ASM9260_UART
92 bool "Kernel low-level debugging via asm9260 UART"
93 depends on MACH_ASM9260
95 Say Y here if you want the debug print routines to direct
96 their output to an UART or USART port on asm9260 based
99 DEBUG_UART_PHYS | DEBUG_UART_VIRT
101 0x80000000 | 0xf0000000 | UART0
102 0x80004000 | 0xf0004000 | UART1
103 0x80008000 | 0xf0008000 | UART2
104 0x8000c000 | 0xf000c000 | UART3
105 0x80010000 | 0xf0010000 | UART4
106 0x80014000 | 0xf0014000 | UART5
107 0x80018000 | 0xf0018000 | UART6
108 0x8001c000 | 0xf001c000 | UART7
109 0x80020000 | 0xf0020000 | UART8
110 0x80024000 | 0xf0024000 | UART9
112 config DEBUG_AT91_RM9200_DBGU
113 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
114 select DEBUG_AT91_UART
115 depends on SOC_AT91RM9200 || SOC_AT91SAM9
117 Say Y here if you want kernel low-level debugging support
119 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
120 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
122 config DEBUG_AT91_SAM9263_DBGU
123 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
124 select DEBUG_AT91_UART
125 depends on SOC_AT91SAM9 || SOC_SAMA5D3
127 Say Y here if you want kernel low-level debugging support
129 at91sam9263, at91sam9g45, at91sam9m10,
132 config DEBUG_AT91_SAMA5D2_UART1
133 bool "Kernel low-level debugging on SAMA5D2 UART1"
134 select DEBUG_AT91_UART
135 depends on SOC_SAMA5D2
137 Say Y here if you want kernel low-level debugging support
138 on the UART1 port of sama5d2.
140 config DEBUG_AT91_SAMA5D4_USART3
141 bool "Kernel low-level debugging on SAMA5D4 USART3"
142 select DEBUG_AT91_UART
143 depends on SOC_SAMA5D4
145 Say Y here if you want kernel low-level debugging support
146 on the USART3 port of sama5d4.
149 bool "Kernel low-level debugging on BCM2835 PL011 UART"
150 depends on ARCH_BCM2835 && ARCH_MULTI_V6
151 select DEBUG_UART_PL01X
154 bool "Kernel low-level debugging on BCM2836 PL011 UART"
155 depends on ARCH_BCM2835 && ARCH_MULTI_V7
156 select DEBUG_UART_PL01X
158 config DEBUG_BCM_5301X
159 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
160 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
161 select DEBUG_UART_8250
163 config DEBUG_BCM_KONA_UART
164 bool "Kernel low-level debugging messages via BCM KONA UART"
165 depends on ARCH_BCM_MOBILE
166 select DEBUG_UART_8250
168 Say Y here if you want kernel low-level debugging support
169 on Broadcom SoC platforms.
170 This low level debug works for Broadcom
171 mobile SoCs in the Kona family of chips (e.g. bcm28155,
174 config DEBUG_BCM63XX_UART
175 bool "Kernel low-level debugging on BCM63XX UART"
176 depends on ARCH_BCM_63XX
178 config DEBUG_BERLIN_UART
179 bool "Marvell Berlin SoC Debug UART"
180 depends on ARCH_BERLIN
181 select DEBUG_UART_8250
183 Say Y here if you want kernel low-level debugging support
184 on Marvell Berlin SoC based platforms.
186 config DEBUG_BRCMSTB_UART
187 bool "Use BRCMSTB UART for low-level debug"
188 depends on ARCH_BRCMSTB
190 Say Y here if you want the debug print routines to direct
191 their output to the first serial port on these devices. The
192 UART physical and virtual address is automatically provided
193 based on the chip identification register value.
195 If you have a Broadcom STB chip and would like early print
196 messages to appear over the UART, select this option.
198 config DEBUG_CLPS711X_UART1
199 bool "Kernel low-level debugging messages via UART1"
200 depends on ARCH_CLPS711X
202 Say Y here if you want the debug print routines to direct
203 their output to the first serial port on these devices.
205 config DEBUG_CLPS711X_UART2
206 bool "Kernel low-level debugging messages via UART2"
207 depends on ARCH_CLPS711X
209 Say Y here if you want the debug print routines to direct
210 their output to the second serial port on these devices.
213 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
214 depends on ARCH_CNS3XXX
215 select DEBUG_UART_8250
217 Say Y here if you want the debug print routines to direct
218 their output to the CNS3xxx UART0.
220 config DEBUG_DAVINCI_DA8XX_UART1
221 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
222 depends on ARCH_DAVINCI_DA8XX
223 select DEBUG_UART_8250
225 Say Y here if you want the debug print routines to direct
226 their output to UART1 serial port on DaVinci DA8XX devices.
228 config DEBUG_DAVINCI_DA8XX_UART2
229 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
230 depends on ARCH_DAVINCI_DA8XX
231 select DEBUG_UART_8250
233 Say Y here if you want the debug print routines to direct
234 their output to UART2 serial port on DaVinci DA8XX devices.
236 config DEBUG_DAVINCI_DMx_UART0
237 bool "Kernel low-level debugging on DaVinci DMx using UART0"
238 depends on ARCH_DAVINCI_DMx
239 select DEBUG_UART_8250
241 Say Y here if you want the debug print routines to direct
242 their output to UART0 serial port on DaVinci DMx devices.
244 config DEBUG_DC21285_PORT
245 bool "Kernel low-level debugging messages via footbridge serial port"
246 depends on FOOTBRIDGE
248 Say Y here if you want the debug print routines to direct
249 their output to the serial port in the DC21285 (Footbridge).
251 config DEBUG_DIGICOLOR_UA0
252 bool "Kernel low-level debugging messages via Digicolor UA0"
253 depends on ARCH_DIGICOLOR
255 Say Y here if you want the debug print routines to direct
256 their output to the UA0 serial port in the CX92755.
259 bool "Kernel low-level debugging messages via ep93xx UART"
260 depends on ARCH_EP93XX
261 select DEBUG_UART_PL01X
263 Say Y here if you want kernel low-level debugging support
264 on Cirrus Logic EP93xx based platforms.
266 config DEBUG_FOOTBRIDGE_COM1
267 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
268 depends on FOOTBRIDGE
269 select DEBUG_UART_8250
271 Say Y here if you want the debug print routines to direct
272 their output to the 8250 at PCI COM1.
275 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
276 depends on ARCH_GEMINI
277 select DEBUG_UART_8250
279 Say Y here if you want kernel low-level debugging support
280 on Cortina Gemini based platforms.
282 config DEBUG_HI3620_UART
283 bool "Hisilicon HI3620 Debug UART"
284 depends on ARCH_HI3xxx
285 select DEBUG_UART_PL01X
287 Say Y here if you want kernel low-level debugging support
290 config DEBUG_HIGHBANK_UART
291 bool "Kernel low-level debugging messages via Highbank UART"
292 depends on ARCH_HIGHBANK
293 select DEBUG_UART_PL01X
295 Say Y here if you want the debug print routines to direct
296 their output to the UART on Highbank based devices.
298 config DEBUG_HIP01_UART
299 bool "Hisilicon Hip01 Debug UART"
300 depends on ARCH_HIP01
301 select DEBUG_UART_8250
303 Say Y here if you want kernel low-level debugging support
306 config DEBUG_HIP04_UART
307 bool "Hisilicon HiP04 Debug UART"
308 depends on ARCH_HIP04
309 select DEBUG_UART_8250
311 Say Y here if you want kernel low-level debugging support
314 config DEBUG_HIX5HD2_UART
315 bool "Hisilicon Hix5hd2 Debug UART"
316 depends on ARCH_HIX5HD2
317 select DEBUG_UART_PL01X
319 Say Y here if you want kernel low-level debugging support
322 config DEBUG_IMX1_UART
323 bool "i.MX1 Debug UART"
326 Say Y here if you want kernel low-level debugging support
329 config DEBUG_IMX23_UART
330 bool "i.MX23 Debug UART"
332 select DEBUG_UART_PL01X
334 Say Y here if you want kernel low-level debugging support
337 config DEBUG_IMX25_UART
338 bool "i.MX25 Debug UART"
341 Say Y here if you want kernel low-level debugging support
344 config DEBUG_IMX21_IMX27_UART
345 bool "i.MX21 and i.MX27 Debug UART"
346 depends on SOC_IMX21 || SOC_IMX27
348 Say Y here if you want kernel low-level debugging support
351 config DEBUG_IMX28_UART
352 bool "i.MX28 Debug UART"
354 select DEBUG_UART_PL01X
356 Say Y here if you want kernel low-level debugging support
359 config DEBUG_IMX31_UART
360 bool "i.MX31 Debug UART"
363 Say Y here if you want kernel low-level debugging support
366 config DEBUG_IMX35_UART
367 bool "i.MX35 Debug UART"
370 Say Y here if you want kernel low-level debugging support
373 config DEBUG_IMX50_UART
374 bool "i.MX50 Debug UART"
377 Say Y here if you want kernel low-level debugging support
380 config DEBUG_IMX51_UART
381 bool "i.MX51 Debug UART"
384 Say Y here if you want kernel low-level debugging support
387 config DEBUG_IMX53_UART
388 bool "i.MX53 Debug UART"
391 Say Y here if you want kernel low-level debugging support
394 config DEBUG_IMX6Q_UART
395 bool "i.MX6Q/DL Debug UART"
398 Say Y here if you want kernel low-level debugging support
401 config DEBUG_IMX6SL_UART
402 bool "i.MX6SL Debug UART"
403 depends on SOC_IMX6SL
405 Say Y here if you want kernel low-level debugging support
408 config DEBUG_IMX6SX_UART
409 bool "i.MX6SX Debug UART"
410 depends on SOC_IMX6SX
412 Say Y here if you want kernel low-level debugging support
415 config DEBUG_IMX6UL_UART
416 bool "i.MX6UL Debug UART"
417 depends on SOC_IMX6UL
419 Say Y here if you want kernel low-level debugging support
422 config DEBUG_IMX7D_UART
423 bool "i.MX7D Debug UART"
426 Say Y here if you want kernel low-level debugging support
429 config DEBUG_INTEGRATOR
430 bool "Kernel low-level debugging messages via ARM Integrator UART"
431 depends on ARCH_INTEGRATOR
432 select DEBUG_UART_PL01X
434 Say Y here if you want kernel low-level debugging support
435 on ARM Integrator platforms.
437 config DEBUG_KEYSTONE_UART0
438 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
439 depends on ARCH_KEYSTONE
440 select DEBUG_UART_8250
442 Say Y here if you want the debug print routines to direct
443 their output to UART0 serial port on KEYSTONE2 devices.
445 config DEBUG_KEYSTONE_UART1
446 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
447 depends on ARCH_KEYSTONE
448 select DEBUG_UART_8250
450 Say Y here if you want the debug print routines to direct
451 their output to UART1 serial port on KEYSTONE2 devices.
453 config DEBUG_KS8695_UART
454 bool "KS8695 Debug UART"
455 depends on ARCH_KS8695
457 Say Y here if you want kernel low-level debugging support
460 config DEBUG_LPC18XX_UART0
461 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
462 depends on ARCH_LPC18XX
463 select DEBUG_UART_8250
465 Say Y here if you want kernel low-level debugging support
466 on NXP LPC18xx/43xx UART0.
469 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
470 depends on ARCH_LPC32XX
471 select DEBUG_UART_8250
473 Say Y here if you want kernel low-level debugging support
474 on NXP LPC32xx based platforms.
476 config DEBUG_MESON_UARTAO
477 bool "Kernel low-level debugging via Meson6 UARTAO"
478 depends on ARCH_MESON
480 Say Y here if you want kernel low-lever debugging support
481 on Amlogic Meson6 based platforms on the UARTAO.
483 config DEBUG_MMP_UART2
484 bool "Kernel low-level debugging message via MMP UART2"
486 select DEBUG_UART_8250
488 Say Y here if you want kernel low-level debugging support
491 config DEBUG_MMP_UART3
492 bool "Kernel low-level debugging message via MMP UART3"
494 select DEBUG_UART_8250
496 Say Y here if you want kernel low-level debugging support
499 config DEBUG_MVEBU_UART0
500 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
501 depends on ARCH_MVEBU
502 depends on ARCH_MVEBU && CPU_V7
503 select DEBUG_UART_8250
505 Say Y here if you want kernel low-level debugging support
506 on MVEBU based platforms on UART0.
508 This option should be used with the old bootloaders
509 that left the internal registers mapped at
510 0xd0000000. As of today, this is the case on
511 platforms such as the Globalscale Mirabox or the
512 Plathome OpenBlocks AX3, when using the original
515 This option will not work on older Marvell platforms
516 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
517 the "new bootloader" variant.
519 If the wrong DEBUG_MVEBU_UART* option is selected,
520 when u-boot hands over to the kernel, the system
521 silently crashes, with no serial output at all.
523 config DEBUG_MVEBU_UART0_ALTERNATE
524 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
525 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
526 select DEBUG_UART_8250
528 Say Y here if you want kernel low-level debugging support
529 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
530 Kirkwood, Dove, MV78xx0, Orion5x).
533 This option should be used with the new bootloaders
534 that remap the internal registers at 0xf1000000.
536 If the wrong DEBUG_MVEBU_UART* option is selected,
537 when u-boot hands over to the kernel, the system
538 silently crashes, with no serial output at all.
540 config DEBUG_MVEBU_UART1_ALTERNATE
541 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
542 depends on ARCH_MVEBU
543 select DEBUG_UART_8250
545 Say Y here if you want kernel low-level debugging support
546 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
547 Kirkwood, Dove, MV78xx0, Orion5x).
549 This option should be used with the new bootloaders
550 that remap the internal registers at 0xf1000000.
551 All of the older (pre Armada XP/370) platforms also use
552 this address, regardless of the boot loader version.
554 If the wrong DEBUG_MVEBU_UART* option is selected,
555 when u-boot hands over to the kernel, the system
556 silently crashes, with no serial output at all.
558 config DEBUG_MT6589_UART0
559 bool "Mediatek mt6589 UART0"
560 depends on ARCH_MEDIATEK
561 select DEBUG_UART_8250
563 Say Y here if you want kernel low-level debugging support
564 for Mediatek mt6589 based platforms on UART0.
566 config DEBUG_MT8127_UART0
567 bool "Mediatek mt8127/mt6592 UART0"
568 depends on ARCH_MEDIATEK
569 select DEBUG_UART_8250
571 Say Y here if you want kernel low-level debugging support
572 for Mediatek mt8127 based platforms on UART0.
574 config DEBUG_MT8135_UART3
575 bool "Mediatek mt8135 UART3"
576 depends on ARCH_MEDIATEK
577 select DEBUG_UART_8250
579 Say Y here if you want kernel low-level debugging support
580 for Mediatek mt8135 based platforms on UART3.
582 config DEBUG_NETX_UART
583 bool "Kernel low-level debugging messages via NetX UART"
586 Say Y here if you want kernel low-level debugging support
587 on Hilscher NetX based platforms.
589 config DEBUG_NOMADIK_UART
590 bool "Kernel low-level debugging messages via NOMADIK UART"
591 depends on ARCH_NOMADIK
592 select DEBUG_UART_PL01X
594 Say Y here if you want kernel low-level debugging support
595 on NOMADIK based platforms.
597 config DEBUG_NSPIRE_CLASSIC_UART
598 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
599 depends on ARCH_NSPIRE
600 select DEBUG_UART_8250
602 Say Y here if you want kernel low-level debugging support
603 on TI-NSPIRE classic models.
605 config DEBUG_NSPIRE_CX_UART
606 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
607 depends on ARCH_NSPIRE
608 select DEBUG_UART_PL01X
610 Say Y here if you want kernel low-level debugging support
611 on TI-NSPIRE CX models.
613 config DEBUG_OMAP1UART1
614 bool "Kernel low-level debugging via OMAP1 UART1"
615 depends on ARCH_OMAP1
616 select DEBUG_UART_8250
618 Say Y here if you want kernel low-level debugging support
619 on OMAP1 based platforms (except OMAP730) on the UART1.
621 config DEBUG_OMAP1UART2
622 bool "Kernel low-level debugging via OMAP1 UART2"
623 depends on ARCH_OMAP1
624 select DEBUG_UART_8250
626 Say Y here if you want kernel low-level debugging support
627 on OMAP1 based platforms (except OMAP730) on the UART2.
629 config DEBUG_OMAP1UART3
630 bool "Kernel low-level debugging via OMAP1 UART3"
631 depends on ARCH_OMAP1
632 select DEBUG_UART_8250
634 Say Y here if you want kernel low-level debugging support
635 on OMAP1 based platforms (except OMAP730) on the UART3.
637 config DEBUG_OMAP2UART1
638 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
639 depends on ARCH_OMAP2PLUS
640 select DEBUG_OMAP2PLUS_UART
642 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
643 omap3 torpedo and 3530 lv som.
645 config DEBUG_OMAP2UART2
646 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
647 depends on ARCH_OMAP2PLUS
648 select DEBUG_OMAP2PLUS_UART
650 config DEBUG_OMAP2UART3
651 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
652 depends on ARCH_OMAP2PLUS
653 select DEBUG_OMAP2PLUS_UART
655 config DEBUG_OMAP3UART3
656 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
657 depends on ARCH_OMAP2PLUS
658 select DEBUG_OMAP2PLUS_UART
660 This covers at least cm_t3x, beagle, crane, devkit8000,
661 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
664 config DEBUG_OMAP4UART3
665 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
666 depends on ARCH_OMAP2PLUS
667 select DEBUG_OMAP2PLUS_UART
669 config DEBUG_OMAP3UART4
670 bool "Kernel low-level debugging messages via OMAP36XX UART4"
671 depends on ARCH_OMAP2PLUS
672 select DEBUG_OMAP2PLUS_UART
674 config DEBUG_OMAP4UART4
675 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
676 depends on ARCH_OMAP2PLUS
677 select DEBUG_OMAP2PLUS_UART
679 config DEBUG_OMAP7XXUART1
680 bool "Kernel low-level debugging via OMAP730 UART1"
681 depends on ARCH_OMAP730
682 select DEBUG_UART_8250
684 Say Y here if you want kernel low-level debugging support
685 on OMAP730 based platforms on the UART1.
687 config DEBUG_OMAP7XXUART2
688 bool "Kernel low-level debugging via OMAP730 UART2"
689 depends on ARCH_OMAP730
690 select DEBUG_UART_8250
692 Say Y here if you want kernel low-level debugging support
693 on OMAP730 based platforms on the UART2.
695 config DEBUG_OMAP7XXUART3
696 bool "Kernel low-level debugging via OMAP730 UART3"
697 depends on ARCH_OMAP730
698 select DEBUG_UART_8250
700 Say Y here if you want kernel low-level debugging support
701 on OMAP730 based platforms on the UART3.
703 config DEBUG_TI81XXUART1
704 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
705 depends on ARCH_OMAP2PLUS
706 select DEBUG_OMAP2PLUS_UART
708 config DEBUG_TI81XXUART2
709 bool "Kernel low-level debugging messages via TI81XX UART2"
710 depends on ARCH_OMAP2PLUS
711 select DEBUG_OMAP2PLUS_UART
713 config DEBUG_TI81XXUART3
714 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
715 depends on ARCH_OMAP2PLUS
716 select DEBUG_OMAP2PLUS_UART
718 config DEBUG_AM33XXUART1
719 bool "Kernel low-level debugging messages via AM33XX UART1"
720 depends on ARCH_OMAP2PLUS
721 select DEBUG_OMAP2PLUS_UART
723 config DEBUG_ZOOM_UART
724 bool "Kernel low-level debugging messages via Zoom2/3 UART"
725 depends on ARCH_OMAP2PLUS
726 select DEBUG_OMAP2PLUS_UART
728 config DEBUG_PICOXCELL_UART
729 depends on ARCH_PICOXCELL
730 bool "Use PicoXcell UART for low-level debug"
731 select DEBUG_UART_8250
733 Say Y here if you want kernel low-level debugging support
734 on PicoXcell based platforms.
736 config DEBUG_PXA_UART1
738 bool "Use PXA UART1 for low-level debug"
739 select DEBUG_UART_8250
741 Say Y here if you want kernel low-level debugging support
744 config DEBUG_QCOM_UARTDM
745 bool "Kernel low-level debugging messages via QCOM UARTDM"
748 Say Y here if you want the debug print routines to direct
749 their output to the serial port on Qualcomm devices.
751 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
752 APQ8064 0x16640000 0xf0040000
753 APQ8084 0xf995e000 0xfa75e000
754 IPQ4019 0x078af000 0xf78af000
755 MSM8X60 0x19c40000 0xf0040000
756 MSM8960 0x16440000 0xf0040000
757 MSM8974 0xf991e000 0xfa71e000
759 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
760 options based on your needs.
762 config DEBUG_REALVIEW_STD_PORT
763 bool "RealView Default UART"
764 depends on ARCH_REALVIEW
765 select DEBUG_UART_PL01X
767 Say Y here if you want the debug print routines to direct
768 their output to the serial port on RealView EB, PB11MP, PBA8
771 config DEBUG_REALVIEW_PB1176_PORT
772 bool "RealView PB1176 UART"
773 depends on MACH_REALVIEW_PB1176
774 select DEBUG_UART_PL01X
776 Say Y here if you want the debug print routines to direct
777 their output to the standard serial port on the RealView
780 config DEBUG_RV1108_UART0
781 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
782 depends on ARCH_ROCKCHIP
783 select DEBUG_UART_8250
785 Say Y here if you want kernel low-level debugging support
786 on Rockchip RV1108 based platforms.
788 config DEBUG_RV1108_UART1
789 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
790 depends on ARCH_ROCKCHIP
791 select DEBUG_UART_8250
793 Say Y here if you want kernel low-level debugging support
794 on Rockchip RV1108 based platforms.
796 config DEBUG_RV1108_UART2
797 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
798 depends on ARCH_ROCKCHIP
799 select DEBUG_UART_8250
801 Say Y here if you want kernel low-level debugging support
802 on Rockchip RV1108 based platforms.
804 config DEBUG_RK29_UART0
805 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
806 depends on ARCH_ROCKCHIP
807 select DEBUG_UART_8250
809 Say Y here if you want kernel low-level debugging support
810 on Rockchip based platforms.
812 config DEBUG_RK29_UART1
813 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
814 depends on ARCH_ROCKCHIP
815 select DEBUG_UART_8250
817 Say Y here if you want kernel low-level debugging support
818 on Rockchip based platforms.
820 config DEBUG_RK29_UART2
821 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
822 depends on ARCH_ROCKCHIP
823 select DEBUG_UART_8250
825 Say Y here if you want kernel low-level debugging support
826 on Rockchip based platforms.
828 config DEBUG_RK3X_UART0
829 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
830 depends on ARCH_ROCKCHIP
831 select DEBUG_UART_8250
833 Say Y here if you want kernel low-level debugging support
834 on Rockchip based platforms.
836 config DEBUG_RK3X_UART1
837 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
838 depends on ARCH_ROCKCHIP
839 select DEBUG_UART_8250
841 Say Y here if you want kernel low-level debugging support
842 on Rockchip based platforms.
844 config DEBUG_RK3X_UART2
845 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
846 depends on ARCH_ROCKCHIP
847 select DEBUG_UART_8250
849 Say Y here if you want kernel low-level debugging support
850 on Rockchip based platforms.
852 config DEBUG_RK3X_UART3
853 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
854 depends on ARCH_ROCKCHIP
855 select DEBUG_UART_8250
857 Say Y here if you want kernel low-level debugging support
858 on Rockchip based platforms.
860 config DEBUG_RK32_UART2
861 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
862 depends on ARCH_ROCKCHIP
863 select DEBUG_UART_8250
865 Say Y here if you want kernel low-level debugging support
866 on Rockchip RK32xx based platforms.
868 config DEBUG_R7S72100_SCIF2
869 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
870 depends on ARCH_R7S72100
872 Say Y here if you want kernel low-level debugging support
873 via SCIF2 on Renesas RZ/A1H (R7S72100).
875 config DEBUG_RCAR_GEN1_SCIF0
876 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
877 depends on ARCH_R8A7778
879 Say Y here if you want kernel low-level debugging support
880 via SCIF0 on Renesas R-Car M1A (R8A7778).
882 config DEBUG_RCAR_GEN1_SCIF2
883 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
884 depends on ARCH_R8A7779
886 Say Y here if you want kernel low-level debugging support
887 via SCIF2 on Renesas R-Car H1 (R8A7779).
889 config DEBUG_RCAR_GEN2_SCIF0
890 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7792/R8A7793"
891 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
893 Say Y here if you want kernel low-level debugging support
894 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), V2H
895 (R8A7792), or M2-N (R8A7793).
897 config DEBUG_RCAR_GEN2_SCIF2
898 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
899 depends on ARCH_R8A7794
901 Say Y here if you want kernel low-level debugging support
902 via SCIF2 on Renesas R-Car E2 (R8A7794).
904 config DEBUG_RMOBILE_SCIFA0
905 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
906 depends on ARCH_R8A73A4
908 Say Y here if you want kernel low-level debugging support
909 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
911 config DEBUG_RMOBILE_SCIFA1
912 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
913 depends on ARCH_R8A7740
915 Say Y here if you want kernel low-level debugging support
916 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
918 config DEBUG_RMOBILE_SCIFA4
919 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
920 depends on ARCH_SH73A0
922 Say Y here if you want kernel low-level debugging support
923 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
925 config DEBUG_S3C_UART0
926 depends on PLAT_SAMSUNG
927 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
928 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
929 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
930 select DEBUG_S5PV210_UART if ARCH_S5PV210
931 bool "Use Samsung S3C UART 0 for low-level debug"
933 Say Y here if you want the debug print routines to direct
934 their output to UART 0. The port must have been initialised
935 by the boot-loader before use.
937 config DEBUG_S3C_UART1
938 depends on PLAT_SAMSUNG
939 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
940 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
941 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
942 select DEBUG_S5PV210_UART if ARCH_S5PV210
943 bool "Use Samsung S3C UART 1 for low-level debug"
945 Say Y here if you want the debug print routines to direct
946 their output to UART 1. The port must have been initialised
947 by the boot-loader before use.
949 config DEBUG_S3C_UART2
950 depends on PLAT_SAMSUNG
951 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
952 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
953 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
954 select DEBUG_S5PV210_UART if ARCH_S5PV210
955 bool "Use Samsung S3C UART 2 for low-level debug"
957 Say Y here if you want the debug print routines to direct
958 their output to UART 2. The port must have been initialised
959 by the boot-loader before use.
961 config DEBUG_S3C_UART3
962 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
963 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
964 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
965 select DEBUG_S5PV210_UART if ARCH_S5PV210
966 bool "Use Samsung S3C UART 3 for low-level debug"
968 Say Y here if you want the debug print routines to direct
969 their output to UART 3. The port must have been initialised
970 by the boot-loader before use.
972 config DEBUG_S3C2410_UART0
973 depends on ARCH_S3C24XX
974 select DEBUG_S3C2410_UART
975 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
977 Say Y here if you want the debug print routines to direct
978 their output to UART 0. The port must have been initialised
979 by the boot-loader before use.
981 config DEBUG_S3C2410_UART1
982 depends on ARCH_S3C24XX
983 select DEBUG_S3C2410_UART
984 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
986 Say Y here if you want the debug print routines to direct
987 their output to UART 1. The port must have been initialised
988 by the boot-loader before use.
990 config DEBUG_S3C2410_UART2
991 depends on ARCH_S3C24XX
992 select DEBUG_S3C2410_UART
993 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
995 Say Y here if you want the debug print routines to direct
996 their output to UART 2. The port must have been initialised
997 by the boot-loader before use.
1000 depends on ARCH_SA1100
1001 bool "Use SA1100 UARTs for low-level debug"
1003 Say Y here if you want kernel low-level debugging support
1004 on SA-11x0 UART ports. The kernel will check for the first
1005 enabled UART in a sequence 3-1-2.
1007 config DEBUG_SOCFPGA_UART0
1008 depends on ARCH_SOCFPGA
1009 bool "Use SOCFPGA UART0 for low-level debug"
1010 select DEBUG_UART_8250
1012 Say Y here if you want kernel low-level debugging support
1013 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1015 config DEBUG_SOCFPGA_UART1
1016 depends on ARCH_SOCFPGA
1017 bool "Use SOCFPGA UART1 for low-level debug"
1018 select DEBUG_UART_8250
1020 Say Y here if you want kernel low-level debugging support
1021 on SOCFPGA(Arria 10) based platforms.
1024 config DEBUG_SUN9I_UART0
1025 bool "Kernel low-level debugging messages via sun9i UART0"
1026 depends on MACH_SUN9I
1027 select DEBUG_UART_8250
1029 Say Y here if you want kernel low-level debugging support
1030 on Allwinner A80 based platforms on the UART0.
1032 config DEBUG_SUNXI_UART0
1033 bool "Kernel low-level debugging messages via sunXi UART0"
1034 depends on ARCH_SUNXI
1035 select DEBUG_UART_8250
1037 Say Y here if you want kernel low-level debugging support
1038 on Allwinner A1X based platforms on the UART0.
1040 config DEBUG_SUNXI_UART1
1041 bool "Kernel low-level debugging messages via sunXi UART1"
1042 depends on ARCH_SUNXI
1043 select DEBUG_UART_8250
1045 Say Y here if you want kernel low-level debugging support
1046 on Allwinner A1X based platforms on the UART1.
1048 config DEBUG_SUNXI_R_UART
1049 bool "Kernel low-level debugging messages via sunXi R_UART"
1050 depends on MACH_SUN6I || MACH_SUN8I
1051 select DEBUG_UART_8250
1053 Say Y here if you want kernel low-level debugging support
1054 on Allwinner A31/A23 based platforms on the R_UART.
1056 config DEBUG_SIRFPRIMA2_UART1
1057 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1058 depends on ARCH_PRIMA2
1059 select DEBUG_SIRFSOC_UART
1061 Say Y here if you want the debug print routines to direct
1062 their output to the uart1 port on SiRFprimaII devices.
1064 config DEBUG_SIRFATLAS7_UART0
1065 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1066 depends on ARCH_ATLAS7
1067 select DEBUG_SIRFSOC_UART
1069 Say Y here if you want the debug print routines to direct
1070 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1071 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1072 debug port can be very useful.
1074 config DEBUG_SIRFATLAS7_UART1
1075 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1076 depends on ARCH_ATLAS7
1077 select DEBUG_SIRFSOC_UART
1079 Say Y here if you want the debug print routines to direct
1080 their output to the uart1 port on SiRFATLAS7 devices.
1082 config DEBUG_SPEAR3XX
1083 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1084 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1085 select DEBUG_UART_PL01X
1087 Say Y here if you want kernel low-level debugging support
1088 on ST SPEAr based platforms.
1090 config DEBUG_SPEAR13XX
1091 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1092 depends on ARCH_SPEAR13XX
1093 select DEBUG_UART_PL01X
1095 Say Y here if you want kernel low-level debugging support
1096 on ST SPEAr13xx based platforms.
1098 config STIH41X_DEBUG_ASC2
1099 bool "Use StiH415/416 ASC2 UART for low-level debug"
1101 select DEBUG_STI_UART
1103 Say Y here if you want kernel low-level debugging support
1104 on STiH415/416 based platforms like b2000, which has
1105 default UART wired up to ASC2.
1109 config STIH41X_DEBUG_SBC_ASC1
1110 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1112 select DEBUG_STI_UART
1114 Say Y here if you want kernel low-level debugging support
1115 on STiH415/416 based platforms like b2020. which has
1116 default UART wired up to SBC ASC1.
1120 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1121 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1122 depends on ARCH_TEGRA
1123 select DEBUG_TEGRA_UART
1125 Automatically determines which UART to use for low-level
1126 debug based on the ODMDATA value. This value is part of
1127 the BCT, and is written to the boot memory device using
1128 nvflash, or other flashing tool. When bits 19:18 are 3,
1129 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1132 config TEGRA_DEBUG_UARTA
1133 bool "Kernel low-level debugging messages via Tegra UART A"
1134 depends on ARCH_TEGRA
1135 select DEBUG_TEGRA_UART
1137 Say Y here if you want kernel low-level debugging support
1138 on Tegra based platforms.
1140 config TEGRA_DEBUG_UARTB
1141 bool "Kernel low-level debugging messages via Tegra UART B"
1142 depends on ARCH_TEGRA
1143 select DEBUG_TEGRA_UART
1145 Say Y here if you want kernel low-level debugging support
1146 on Tegra based platforms.
1148 config TEGRA_DEBUG_UARTC
1149 bool "Kernel low-level debugging messages via Tegra UART C"
1150 depends on ARCH_TEGRA
1151 select DEBUG_TEGRA_UART
1153 Say Y here if you want kernel low-level debugging support
1154 on Tegra based platforms.
1156 config TEGRA_DEBUG_UARTD
1157 bool "Kernel low-level debugging messages via Tegra UART D"
1158 depends on ARCH_TEGRA
1159 select DEBUG_TEGRA_UART
1161 Say Y here if you want kernel low-level debugging support
1162 on Tegra based platforms.
1164 config TEGRA_DEBUG_UARTE
1165 bool "Kernel low-level debugging messages via Tegra UART E"
1166 depends on ARCH_TEGRA
1167 select DEBUG_TEGRA_UART
1169 Say Y here if you want kernel low-level debugging support
1170 on Tegra based platforms.
1172 config DEBUG_U300_UART
1173 bool "Kernel low-level debugging messages via U300 UART0"
1174 depends on ARCH_U300
1175 select DEBUG_UART_PL01X
1177 Say Y here if you want the debug print routines to direct
1178 their output to the uart port on U300 devices.
1180 config DEBUG_UX500_UART
1181 depends on ARCH_U8500
1182 bool "Use Ux500 UART for low-level debug"
1184 Say Y here if you want kernel low-level debugging support
1185 on Ux500 based platforms.
1187 config DEBUG_VERSATILE
1188 bool "Kernel low-level debugging messages via ARM Versatile UART"
1189 depends on ARCH_VERSATILE
1190 select DEBUG_UART_PL01X
1192 Say Y here if you want kernel low-level debugging support
1193 on ARM Versatile platforms.
1195 config DEBUG_VEXPRESS_UART0_DETECT
1196 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1197 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1199 This option enables a simple heuristic which tries to determine
1200 the motherboard's memory map variant (original or RS1) and then
1201 choose the relevant UART0 base address.
1203 Note that this will only work with standard A-class core tiles,
1204 and may fail with non-standard SMM or custom software models.
1206 config DEBUG_VEXPRESS_UART0_CA9
1207 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1208 depends on ARCH_VEXPRESS
1209 select DEBUG_UART_PL01X
1211 This option selects UART0 at 0x10009000. Except for custom models,
1212 this applies only to the V2P-CA9 tile.
1214 config DEBUG_VEXPRESS_UART0_RS1
1215 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1216 depends on ARCH_VEXPRESS
1217 select DEBUG_UART_PL01X
1219 This option selects UART0 at 0x1c090000. This applies to most
1220 of the tiles using the RS1 memory map, including all new A-class
1221 core tiles, FPGA-based SMMs and software models.
1223 config DEBUG_VEXPRESS_UART0_CRX
1224 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1225 depends on ARCH_VEXPRESS && !MMU
1226 select DEBUG_UART_PL01X
1228 This option selects UART0 at 0xb0090000. This is appropriate for
1229 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1231 config DEBUG_VF_UART
1233 depends on SOC_VF610
1235 Say Y here if you want kernel low-level debugging support
1236 on Vybrid based platforms.
1238 config DEBUG_VT8500_UART0
1239 bool "Use UART0 on VIA/Wondermedia SoCs"
1240 depends on ARCH_VT8500
1242 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1243 devices, including VT8500, WM8505, WM8650 and WM8850.
1246 bool "Use ZTE ZX UART"
1247 select DEBUG_UART_PL01X
1250 Say Y here if you are enabling ZTE ZX296702 SOC and need
1253 This option is preferred over the platform specific
1254 options; the platform specific options are deprecated
1255 and will be soon removed.
1257 config DEBUG_ZYNQ_UART0
1258 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1259 depends on ARCH_ZYNQ
1261 Say Y here if you want the debug print routines to direct
1262 their output to UART0 on the Zynq platform.
1264 config DEBUG_ZYNQ_UART1
1265 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1266 depends on ARCH_ZYNQ
1268 Say Y here if you want the debug print routines to direct
1269 their output to UART1 on the Zynq platform.
1271 If you have a ZC702 board and want early boot messages to
1272 appear on the USB serial adaptor, select this option.
1275 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1277 Say Y here if you want the debug print routines to direct
1278 their output to the EmbeddedICE macrocell's DCC channel using
1279 co-processor 14. This is known to work on the ARM9 style ICE
1280 channel and on the XScale with the PEEDI.
1282 Note that the system will appear to hang during boot if there
1283 is nothing connected to read from the DCC.
1285 config DEBUG_SEMIHOSTING
1286 bool "Kernel low-level debug output via semihosting I/O"
1288 Semihosting enables code running on an ARM target to use
1289 the I/O facilities on a host debugger/emulator through a
1290 simple SVC call. The host debugger or emulator must have
1291 semihosting enabled for the special svc call to be trapped
1292 otherwise the kernel will crash.
1294 This is known to work with OpenOCD, as well as
1295 ARM's Fast Models, or any other controlling environment
1296 that implements semihosting.
1298 For more details about semihosting, please see
1299 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1301 config DEBUG_LL_UART_8250
1302 bool "Kernel low-level debugging via 8250 UART"
1304 Say Y here if you wish the debug print routes to direct
1305 their output to an 8250 UART. You can use this option
1306 to provide the parameters for the 8250 UART rather than
1307 selecting one of the platform specific options above if
1308 you know the parameters for the port.
1310 This option is preferred over the platform specific
1311 options; the platform specific options are deprecated
1312 and will be soon removed.
1314 config DEBUG_LL_UART_EFM32
1315 bool "Kernel low-level debugging via efm32 UART"
1316 depends on ARCH_EFM32
1318 Say Y here if you want the debug print routines to direct
1319 their output to an UART or USART port on efm32 based
1320 machines. Use the following addresses for DEBUG_UART_PHYS:
1328 config DEBUG_LL_UART_PL01X
1329 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1331 Say Y here if you wish the debug print routes to direct
1332 their output to a PL01x Primecell UART. You can use
1333 this option to provide the parameters for the UART
1334 rather than selecting one of the platform specific
1335 options above if you know the parameters for the port.
1337 This option is preferred over the platform specific
1338 options; the platform specific options are deprecated
1339 and will be soon removed.
1343 config DEBUG_AT91_UART
1345 depends on ARCH_AT91
1347 config DEBUG_EXYNOS_UART
1350 config DEBUG_S3C2410_UART
1352 select DEBUG_S3C24XX_UART
1354 config DEBUG_S3C24XX_UART
1357 config DEBUG_S3C64XX_UART
1360 config DEBUG_S5PV210_UART
1363 config DEBUG_OMAP2PLUS_UART
1365 depends on ARCH_OMAP2PLUS
1367 config DEBUG_IMX_UART_PORT
1368 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1369 DEBUG_IMX25_UART || \
1370 DEBUG_IMX21_IMX27_UART || \
1371 DEBUG_IMX31_UART || \
1372 DEBUG_IMX35_UART || \
1373 DEBUG_IMX50_UART || \
1374 DEBUG_IMX51_UART || \
1375 DEBUG_IMX53_UART || \
1376 DEBUG_IMX6Q_UART || \
1377 DEBUG_IMX6SL_UART || \
1378 DEBUG_IMX6SX_UART || \
1379 DEBUG_IMX6UL_UART || \
1384 Choose UART port on which kernel low-level debug messages
1387 config DEBUG_VF_UART_PORT
1388 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1391 depends on SOC_VF610
1393 Choose UART port on which kernel low-level debug messages
1396 config DEBUG_TEGRA_UART
1398 depends on ARCH_TEGRA
1400 config DEBUG_STI_UART
1404 config DEBUG_SIRFSOC_UART
1406 depends on ARCH_SIRF
1408 config DEBUG_LL_INCLUDE
1410 default "debug/sa1100.S" if DEBUG_SA1100
1411 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1412 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1413 default "debug/at91.S" if DEBUG_AT91_UART
1414 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1415 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1416 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1417 default "debug/meson.S" if DEBUG_MESON_UARTAO
1418 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1419 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1420 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1421 default "debug/icedcc.S" if DEBUG_ICEDCC
1422 default "debug/imx.S" if DEBUG_IMX1_UART || \
1423 DEBUG_IMX25_UART || \
1424 DEBUG_IMX21_IMX27_UART || \
1425 DEBUG_IMX31_UART || \
1426 DEBUG_IMX35_UART || \
1427 DEBUG_IMX50_UART || \
1428 DEBUG_IMX51_UART || \
1429 DEBUG_IMX53_UART ||\
1430 DEBUG_IMX6Q_UART || \
1431 DEBUG_IMX6SL_UART || \
1432 DEBUG_IMX6SX_UART || \
1433 DEBUG_IMX6UL_UART || \
1435 default "debug/ks8695.S" if DEBUG_KS8695_UART
1436 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1437 default "debug/netx.S" if DEBUG_NETX_UART
1438 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1439 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1440 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1441 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1442 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1443 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1444 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1445 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1446 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1447 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1448 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1449 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1450 default "debug/sti.S" if DEBUG_STI_UART
1451 default "debug/tegra.S" if DEBUG_TEGRA_UART
1452 default "debug/ux500.S" if DEBUG_UX500_UART
1453 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1454 default "debug/vf.S" if DEBUG_VF_UART
1455 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1456 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1457 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1458 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1459 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1460 default "mach/debug-macro.S"
1462 # Compatibility options for PL01x
1463 config DEBUG_UART_PL01X
1466 # Compatibility options for 8250
1467 config DEBUG_UART_8250
1468 def_bool ARCH_EBSA110 || \
1469 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1472 config DEBUG_UART_PHYS
1473 hex "Physical base address of debug UART"
1474 default 0x00100a00 if DEBUG_NETX_UART
1475 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1476 default 0x01c28000 if DEBUG_SUNXI_UART0
1477 default 0x01c28400 if DEBUG_SUNXI_UART1
1478 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1479 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1480 default 0x01f02800 if DEBUG_SUNXI_R_UART
1481 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1482 default 0x02531000 if DEBUG_KEYSTONE_UART1
1483 default 0x03010fe0 if ARCH_RPC
1484 default 0x07000000 if DEBUG_SUN9I_UART0
1485 default 0x09405000 if DEBUG_ZTE_ZX
1486 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1487 DEBUG_VEXPRESS_UART0_CA9
1488 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1489 default 0x10124000 if DEBUG_RK3X_UART0
1490 default 0x10126000 if DEBUG_RK3X_UART1
1491 default 0x101f1000 if DEBUG_VERSATILE
1492 default 0x101fb000 if DEBUG_NOMADIK_UART
1493 default 0x10210000 if DEBUG_RV1108_UART2
1494 default 0x10220000 if DEBUG_RV1108_UART1
1495 default 0x10230000 if DEBUG_RV1108_UART0
1496 default 0x11002000 if DEBUG_MT8127_UART0
1497 default 0x11006000 if DEBUG_MT6589_UART0
1498 default 0x11009000 if DEBUG_MT8135_UART3
1499 default 0x16000000 if DEBUG_INTEGRATOR
1500 default 0x18000300 if DEBUG_BCM_5301X
1501 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1502 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1503 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1504 default 0x20001000 if DEBUG_HIP01_UART
1505 default 0x20060000 if DEBUG_RK29_UART0
1506 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1507 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1508 default 0x20201000 if DEBUG_BCM2835
1509 default 0x3f201000 if DEBUG_BCM2836
1510 default 0x3e000000 if DEBUG_BCM_KONA_UART
1511 default 0x4000e400 if DEBUG_LL_UART_EFM32
1512 default 0x40081000 if DEBUG_LPC18XX_UART0
1513 default 0x40090000 if DEBUG_LPC32XX
1514 default 0x40100000 if DEBUG_PXA_UART1
1515 default 0x42000000 if DEBUG_GEMINI
1516 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1517 DEBUG_S3C2410_UART0)
1518 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1519 DEBUG_S3C2410_UART1)
1520 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1521 DEBUG_S3C2410_UART2)
1522 default 0x78000000 if DEBUG_CNS3XXX
1523 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1524 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1525 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1526 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1527 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1528 default 0x80010000 if DEBUG_ASM9260_UART
1529 default 0x80070000 if DEBUG_IMX23_UART
1530 default 0x80074000 if DEBUG_IMX28_UART
1531 default 0x80230000 if DEBUG_PICOXCELL_UART
1532 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1533 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1534 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1535 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1536 default 0xc0013000 if DEBUG_U300_UART
1537 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1538 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1539 default 0xd0000000 if DEBUG_SPEAR3XX
1540 default 0xd0012000 if DEBUG_MVEBU_UART0
1541 default 0xc81004c0 if DEBUG_MESON_UARTAO
1542 default 0xd4017000 if DEBUG_MMP_UART2
1543 default 0xd4018000 if DEBUG_MMP_UART3
1544 default 0xe0000000 if DEBUG_SPEAR13XX
1545 default 0xe4007000 if DEBUG_HIP04_UART
1546 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1547 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1548 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1549 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1550 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1551 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1552 default 0xf0000be0 if ARCH_EBSA110
1553 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1554 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1555 default 0xf7fc9000 if DEBUG_BERLIN_UART
1556 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1557 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1558 default 0xf991e000 if DEBUG_QCOM_UARTDM
1559 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1560 default 0xfcb00000 if DEBUG_HI3620_UART
1561 default 0xfd883000 if DEBUG_ALPINE_UART0
1562 default 0xfe800000 if ARCH_IOP32X
1563 default 0xff690000 if DEBUG_RK32_UART2
1564 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1565 default 0xffc02100 if DEBUG_SOCFPGA_UART1
1566 default 0xffd82340 if ARCH_IOP13XX
1567 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1568 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1569 default 0xfff36000 if DEBUG_HIGHBANK_UART
1570 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1571 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1572 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1573 default 0xfffe8600 if DEBUG_BCM63XX_UART
1574 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1575 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1576 default 0xfffff700 if ARCH_IOP33X
1577 depends on ARCH_EP93XX || \
1578 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1579 DEBUG_LL_UART_EFM32 || \
1580 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1581 DEBUG_NETX_UART || \
1582 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1583 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1584 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1585 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1586 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1587 DEBUG_S3C64XX_UART || \
1588 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1589 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1592 config DEBUG_UART_VIRT
1593 hex "Virtual base address of debug UART"
1594 default 0xc881f000 if DEBUG_RV1108_UART2
1595 default 0xc8821000 if DEBUG_RV1108_UART1
1596 default 0xc8912000 if DEBUG_RV1108_UART0
1597 default 0xe0000a00 if DEBUG_NETX_UART
1598 default 0xe0010fe0 if ARCH_RPC
1599 default 0xf0000be0 if ARCH_EBSA110
1600 default 0xf0010000 if DEBUG_ASM9260_UART
1601 default 0xf01fb000 if DEBUG_NOMADIK_UART
1602 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1603 default 0xf1000300 if DEBUG_BCM_5301X
1604 default 0xf1002000 if DEBUG_MT8127_UART0
1605 default 0xf1006000 if DEBUG_MT6589_UART0
1606 default 0xf1009000 if DEBUG_MT8135_UART3
1607 default 0xf11f1000 if DEBUG_VERSATILE
1608 default 0xf1600000 if DEBUG_INTEGRATOR
1609 default 0xf1c28000 if DEBUG_SUNXI_UART0
1610 default 0xf1c28400 if DEBUG_SUNXI_UART1
1611 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1612 default 0xf31004c0 if DEBUG_MESON_UARTAO
1613 default 0xf4090000 if DEBUG_LPC32XX
1614 default 0xf4200000 if DEBUG_GEMINI
1615 default 0xf6200000 if DEBUG_PXA_UART1
1616 default 0xf7000000 if DEBUG_SUN9I_UART0
1617 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1618 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1619 DEBUG_S3C2410_UART0)
1620 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1621 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1622 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1623 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1624 DEBUG_S3C2410_UART1)
1625 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1626 DEBUG_S3C2410_UART2)
1627 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1628 default 0xf7fc9000 if DEBUG_BERLIN_UART
1629 default 0xf8007000 if DEBUG_HIP04_UART
1630 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1631 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1632 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1633 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1634 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1635 default 0xfb002000 if DEBUG_CNS3XXX
1636 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1637 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1638 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1639 default 0xfc705000 if DEBUG_ZTE_ZX
1640 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1641 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1642 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1643 default 0xfd883000 if DEBUG_ALPINE_UART0
1644 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1645 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1646 default 0xfe017000 if DEBUG_MMP_UART2
1647 default 0xfe018000 if DEBUG_MMP_UART3
1648 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1649 default 0xfe230000 if DEBUG_PICOXCELL_UART
1650 default 0xfe300000 if DEBUG_BCM_KONA_UART
1651 default 0xfe800000 if ARCH_IOP32X
1652 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1653 default 0xfeb24000 if DEBUG_RK3X_UART0
1654 default 0xfeb26000 if DEBUG_RK3X_UART1
1655 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1656 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1657 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1658 default 0xfec02100 if DEBUG_SOCFPGA_UART1
1659 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1660 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1661 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1662 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1663 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1664 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1665 default 0xfec90000 if DEBUG_RK32_UART2
1666 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1667 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1668 default 0xfed60000 if DEBUG_RK29_UART0
1669 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1670 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1671 default 0xfedc0000 if DEBUG_EP93XX
1672 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1673 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1674 default 0xfee82340 if ARCH_IOP13XX
1675 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1676 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1677 default 0xfef36000 if DEBUG_HIGHBANK_UART
1678 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1679 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1680 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1681 default 0xfefff700 if ARCH_IOP33X
1682 default 0xff003000 if DEBUG_U300_UART
1683 default 0xffd01000 if DEBUG_HIP01_UART
1684 default DEBUG_UART_PHYS if !MMU
1685 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1686 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1687 DEBUG_NETX_UART || \
1688 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1689 DEBUG_S3C64XX_UART || \
1690 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1691 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1694 config DEBUG_UART_8250_SHIFT
1695 int "Register offset shift for the 8250 debug UART"
1696 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1697 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1698 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1701 config DEBUG_UART_8250_WORD
1702 bool "Use 32-bit accesses for 8250 UART"
1703 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1704 depends on DEBUG_UART_8250_SHIFT >= 2
1705 default y if DEBUG_PICOXCELL_UART || \
1706 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \
1707 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
1708 DEBUG_ALPINE_UART0 || \
1709 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1710 DEBUG_DAVINCI_DA8XX_UART2 || \
1711 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1713 config DEBUG_UART_8250_PALMCHIP
1714 bool "8250 UART is Palmchip BK-310x"
1715 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1717 Palmchip provides a UART implementation compatible with 16550
1718 except for having a different register layout. Say Y here if
1719 the debug UART is of this type.
1721 config DEBUG_UART_8250_FLOW_CONTROL
1722 bool "Enable flow control for 8250 UART"
1723 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1724 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1726 config DEBUG_UNCOMPRESS
1728 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1729 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1730 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1733 This option influences the normal decompressor output for
1734 multiplatform kernels. Normally, multiplatform kernels disable
1735 decompressor output because it is not possible to know where to
1736 send the decompressor output.
1738 When this option is set, the selected DEBUG_LL output method
1739 will be re-used for normal decompressor output on multiplatform
1743 config UNCOMPRESS_INCLUDE
1745 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1746 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1747 default "mach/uncompress.h"
1753 Say Y here if you want to have an early console using the
1754 kernel low-level debugging functions. Add earlyprintk to your
1755 kernel parameters to enable this console.
1757 config ARM_KPROBES_TEST
1758 tristate "Kprobes test module"
1759 depends on KPROBES && MODULES
1761 Perform tests of kprobes API and instruction set simulation.
1763 config PID_IN_CONTEXTIDR
1764 bool "Write the current PID to the CONTEXTIDR register"
1765 depends on CPU_COPY_V6
1767 Enabling this option causes the kernel to write the current PID to
1768 the PROCID field of the CONTEXTIDR register, at the expense of some
1769 additional instructions during context switch. Say Y here only if you
1770 are planning to use hardware trace tools with this kernel.
1772 source "drivers/hwtracing/coresight/Kconfig"