1 # SPDX-License-Identifier: GPL-2.0
6 config ARM_PTDUMP_DEBUGFS
7 bool "Export kernel pagetable layout to userspace via debugfs"
8 depends on DEBUG_KERNEL
10 select ARM_PTDUMP_CORE
13 Say Y here if you want to show the kernel pagetable layout in a
14 debugfs file. This information is only useful for kernel developers
15 who are working in architecture specific areas of the kernel.
16 It is probably not a good idea to enable this feature in a production
21 bool "Warn on W+X mappings at boot"
23 select ARM_PTDUMP_CORE
25 Generate a warning if any W+X mappings are found at boot.
27 This is useful for discovering cases where the kernel is leaving
28 W+X mappings after applying NX, as such mappings are a security risk.
30 Look for a message in dmesg output like this:
32 arm/mm: Checked W+X mappings: passed, no W+X pages found.
34 or like this, if the check failed:
36 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
38 Note that even if the check fails, your kernel is possibly
39 still fine, as W+X mappings are not a security hole in
40 themselves, what they do is that they make the exploitation
41 of other unfixed kernel bugs easier.
43 There is no runtime or memory usage effect of this option
44 once the kernel has booted up - it's a one time check.
49 prompt "Choose kernel unwinder"
50 default UNWINDER_ARM if AEABI
51 default UNWINDER_FRAME_POINTER if !AEABI
53 This determines which method will be used for unwinding kernel stack
54 traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
55 livepatch, lockdep, and more.
57 config UNWINDER_FRAME_POINTER
58 bool "Frame pointer unwinder"
59 depends on !THUMB2_KERNEL
60 select ARCH_WANT_FRAME_POINTERS
63 This option enables the frame pointer unwinder for unwinding
67 bool "ARM EABI stack unwinder"
68 depends on AEABI && !FUNCTION_GRAPH_TRACER
71 This option enables stack unwinding support in the kernel
72 using the information automatically generated by the
73 compiler. The resulting kernel image is slightly bigger but
74 the performance is not affected. Currently, this feature
75 only works with EABI compilers.
86 bool "Verbose user fault messages"
88 When a user program crashes due to an exception, the kernel can
89 print a brief message explaining what the problem was. This is
90 sometimes helpful for debugging but serves no purpose on a
91 production system. Most people should say N here.
93 In addition, you need to pass user_debug=N on the kernel command
94 line to enable this feature. N consists of the sum of:
96 1 - undefined instruction events
98 4 - invalid data aborts
102 # These options are only for real kernel hackers who want to get their hands dirty.
104 bool "Kernel low-level debugging functions (read help!)"
105 depends on DEBUG_KERNEL
107 Say Y here to include definitions of printascii, printch, printhex
108 in the kernel. This is helpful if you are debugging code that
109 executes before the console is initialized.
111 Note that selecting this option will limit the kernel to a single
112 UART definition, as specified below. Attempting to boot the kernel
113 image on a different platform *will not work*, so this option should
114 not be enabled for kernels that are intended to be portable.
117 prompt "Kernel low-level debugging port"
120 config DEBUG_ALPINE_UART0
121 bool "Kernel low-level debugging messages via Alpine UART0"
122 depends on ARCH_ALPINE
123 select DEBUG_UART_8250
125 Say Y here if you want kernel low-level debugging support
126 on Alpine based platforms.
128 config DEBUG_ASM9260_UART
129 bool "Kernel low-level debugging via asm9260 UART"
130 depends on MACH_ASM9260
132 Say Y here if you want the debug print routines to direct
133 their output to an UART or USART port on asm9260 based
136 DEBUG_UART_PHYS | DEBUG_UART_VIRT
138 0x80000000 | 0xf0000000 | UART0
139 0x80004000 | 0xf0004000 | UART1
140 0x80008000 | 0xf0008000 | UART2
141 0x8000c000 | 0xf000c000 | UART3
142 0x80010000 | 0xf0010000 | UART4
143 0x80014000 | 0xf0014000 | UART5
144 0x80018000 | 0xf0018000 | UART6
145 0x8001c000 | 0xf001c000 | UART7
146 0x80020000 | 0xf0020000 | UART8
147 0x80024000 | 0xf0024000 | UART9
149 config DEBUG_AT91_RM9200_DBGU
150 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
151 select DEBUG_AT91_UART
152 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
154 Say Y here if you want kernel low-level debugging support
156 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
157 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
159 config DEBUG_AT91_SAM9263_DBGU
160 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
161 select DEBUG_AT91_UART
162 depends on SOC_AT91SAM9 || SOC_SAMA5D3
164 Say Y here if you want kernel low-level debugging support
166 at91sam9263, at91sam9g45, at91sam9m10,
169 config DEBUG_AT91_SAMA5D2_UART1
170 bool "Kernel low-level debugging on SAMA5D2 UART1"
171 select DEBUG_AT91_UART
172 depends on SOC_SAMA5D2
174 Say Y here if you want kernel low-level debugging support
175 on the UART1 port of sama5d2.
177 config DEBUG_AT91_SAMA5D4_USART3
178 bool "Kernel low-level debugging on SAMA5D4 USART3"
179 select DEBUG_AT91_UART
180 depends on SOC_SAMA5D4
182 Say Y here if you want kernel low-level debugging support
183 on the USART3 port of sama5d4.
185 config DEBUG_AT91_SAMV7_USART1
186 bool "Kernel low-level debugging via SAMV7 USART1"
187 select DEBUG_AT91_UART
190 Say Y here if you want the debug print routines to direct
191 their output to the USART1 port on SAMV7 based
195 bool "Kernel low-level debugging on BCM2835 PL011 UART"
196 depends on ARCH_BCM2835 && ARCH_MULTI_V6
197 select DEBUG_UART_PL01X
200 bool "Kernel low-level debugging on BCM2836 PL011 UART"
201 depends on ARCH_BCM2835 && ARCH_MULTI_V7
202 select DEBUG_UART_PL01X
204 config DEBUG_BCM_5301X
205 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
206 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
207 select DEBUG_UART_8250
210 bool "Kernel low-level debugging on Hurricane 2 UART2"
211 depends on ARCH_BCM_HR2
212 select DEBUG_UART_8250
214 config DEBUG_BCM_IPROC_UART3
215 bool "Kernel low-level debugging on BCM IPROC UART3"
216 depends on ARCH_BCM_CYGNUS
217 select DEBUG_UART_8250
219 Say Y here if you want the debug print routines to direct
220 their output to the third serial port on these devices.
222 config DEBUG_BCM_KONA_UART
223 bool "Kernel low-level debugging messages via BCM KONA UART"
224 depends on ARCH_BCM_MOBILE
225 select DEBUG_UART_8250
227 Say Y here if you want kernel low-level debugging support
228 on Broadcom SoC platforms.
229 This low level debug works for Broadcom
230 mobile SoCs in the Kona family of chips (e.g. bcm28155,
233 config DEBUG_BCM63XX_UART
234 bool "Kernel low-level debugging on BCM63XX UART"
235 depends on ARCH_BCM_63XX
237 config DEBUG_BERLIN_UART
238 bool "Marvell Berlin SoC Debug UART"
239 depends on ARCH_BERLIN
240 select DEBUG_UART_8250
242 Say Y here if you want kernel low-level debugging support
243 on Marvell Berlin SoC based platforms.
245 config DEBUG_BRCMSTB_UART
246 bool "Use BRCMSTB UART for low-level debug"
247 depends on ARCH_BRCMSTB
249 Say Y here if you want the debug print routines to direct
250 their output to the first serial port on these devices. The
251 UART physical and virtual address is automatically provided
252 based on the chip identification register value.
254 If you have a Broadcom STB chip and would like early print
255 messages to appear over the UART, select this option.
257 config DEBUG_CLPS711X_UART1
258 bool "Kernel low-level debugging messages via UART1"
259 depends on ARCH_CLPS711X
261 Say Y here if you want the debug print routines to direct
262 their output to the first serial port on these devices.
264 config DEBUG_CLPS711X_UART2
265 bool "Kernel low-level debugging messages via UART2"
266 depends on ARCH_CLPS711X
268 Say Y here if you want the debug print routines to direct
269 their output to the second serial port on these devices.
272 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
273 depends on ARCH_CNS3XXX
274 select DEBUG_UART_8250
276 Say Y here if you want the debug print routines to direct
277 their output to the CNS3xxx UART0.
279 config DEBUG_DAVINCI_DA8XX_UART1
280 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
281 depends on ARCH_DAVINCI_DA8XX
282 select DEBUG_UART_8250
284 Say Y here if you want the debug print routines to direct
285 their output to UART1 serial port on DaVinci DA8XX devices.
287 config DEBUG_DAVINCI_DA8XX_UART2
288 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
289 depends on ARCH_DAVINCI_DA8XX
290 select DEBUG_UART_8250
292 Say Y here if you want the debug print routines to direct
293 their output to UART2 serial port on DaVinci DA8XX devices.
295 config DEBUG_DAVINCI_DMx_UART0
296 bool "Kernel low-level debugging on DaVinci DMx using UART0"
297 depends on ARCH_DAVINCI_DMx
298 select DEBUG_UART_8250
300 Say Y here if you want the debug print routines to direct
301 their output to UART0 serial port on DaVinci DMx devices.
303 config DEBUG_DC21285_PORT
304 bool "Kernel low-level debugging messages via footbridge serial port"
305 depends on FOOTBRIDGE
307 Say Y here if you want the debug print routines to direct
308 their output to the serial port in the DC21285 (Footbridge).
310 config DEBUG_DIGICOLOR_UA0
311 bool "Kernel low-level debugging messages via Digicolor UA0"
312 depends on ARCH_DIGICOLOR
314 Say Y here if you want the debug print routines to direct
315 their output to the UA0 serial port in the CX92755.
318 bool "Kernel low-level debugging messages via ep93xx UART"
319 depends on ARCH_EP93XX
320 select DEBUG_UART_PL01X
322 Say Y here if you want kernel low-level debugging support
323 on Cirrus Logic EP93xx based platforms.
325 config DEBUG_FOOTBRIDGE_COM1
326 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
327 depends on FOOTBRIDGE
328 select DEBUG_UART_8250
330 Say Y here if you want the debug print routines to direct
331 their output to the 8250 at PCI COM1.
334 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
335 depends on ARCH_GEMINI
336 select DEBUG_UART_8250
338 Say Y here if you want kernel low-level debugging support
339 on Cortina Gemini based platforms.
341 config DEBUG_HI3620_UART
342 bool "Hisilicon HI3620 Debug UART"
343 depends on ARCH_HI3xxx
344 select DEBUG_UART_PL01X
346 Say Y here if you want kernel low-level debugging support
349 config DEBUG_HIGHBANK_UART
350 bool "Kernel low-level debugging messages via Highbank UART"
351 depends on ARCH_HIGHBANK
352 select DEBUG_UART_PL01X
354 Say Y here if you want the debug print routines to direct
355 their output to the UART on Highbank based devices.
357 config DEBUG_HIP01_UART
358 bool "Hisilicon Hip01 Debug UART"
359 depends on ARCH_HIP01
360 select DEBUG_UART_8250
362 Say Y here if you want kernel low-level debugging support
365 config DEBUG_HIP04_UART
366 bool "Hisilicon HiP04 Debug UART"
367 depends on ARCH_HIP04
368 select DEBUG_UART_8250
370 Say Y here if you want kernel low-level debugging support
373 config DEBUG_HIX5HD2_UART
374 bool "Hisilicon Hix5hd2 Debug UART"
375 depends on ARCH_HIX5HD2
376 select DEBUG_UART_PL01X
378 Say Y here if you want kernel low-level debugging support
381 config DEBUG_IMX1_UART
382 bool "i.MX1 Debug UART"
385 Say Y here if you want kernel low-level debugging support
388 config DEBUG_IMX23_UART
389 bool "i.MX23 Debug UART"
391 select DEBUG_UART_PL01X
393 Say Y here if you want kernel low-level debugging support
396 config DEBUG_IMX25_UART
397 bool "i.MX25 Debug UART"
400 Say Y here if you want kernel low-level debugging support
403 config DEBUG_IMX21_IMX27_UART
404 bool "i.MX21 and i.MX27 Debug UART"
405 depends on SOC_IMX21 || SOC_IMX27
407 Say Y here if you want kernel low-level debugging support
410 config DEBUG_IMX28_UART
411 bool "i.MX28 Debug UART"
413 select DEBUG_UART_PL01X
415 Say Y here if you want kernel low-level debugging support
418 config DEBUG_IMX31_UART
419 bool "i.MX31 Debug UART"
422 Say Y here if you want kernel low-level debugging support
425 config DEBUG_IMX35_UART
426 bool "i.MX35 Debug UART"
429 Say Y here if you want kernel low-level debugging support
432 config DEBUG_IMX50_UART
433 bool "i.MX50 Debug UART"
436 Say Y here if you want kernel low-level debugging support
439 config DEBUG_IMX51_UART
440 bool "i.MX51 Debug UART"
443 Say Y here if you want kernel low-level debugging support
446 config DEBUG_IMX53_UART
447 bool "i.MX53 Debug UART"
450 Say Y here if you want kernel low-level debugging support
453 config DEBUG_IMX6Q_UART
454 bool "i.MX6Q/DL Debug UART"
457 Say Y here if you want kernel low-level debugging support
460 config DEBUG_IMX6SL_UART
461 bool "i.MX6SL Debug UART"
462 depends on SOC_IMX6SL
464 Say Y here if you want kernel low-level debugging support
467 config DEBUG_IMX6SX_UART
468 bool "i.MX6SX Debug UART"
469 depends on SOC_IMX6SX
471 Say Y here if you want kernel low-level debugging support
474 config DEBUG_IMX6UL_UART
475 bool "i.MX6UL Debug UART"
476 depends on SOC_IMX6UL
478 Say Y here if you want kernel low-level debugging support
481 config DEBUG_IMX7D_UART
482 bool "i.MX7D Debug UART"
485 Say Y here if you want kernel low-level debugging support
488 config DEBUG_INTEGRATOR
489 bool "Kernel low-level debugging messages via ARM Integrator UART"
490 depends on ARCH_INTEGRATOR
491 select DEBUG_UART_PL01X
493 Say Y here if you want kernel low-level debugging support
494 on ARM Integrator platforms.
496 config DEBUG_KEYSTONE_UART0
497 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
498 depends on ARCH_KEYSTONE
499 select DEBUG_UART_8250
501 Say Y here if you want the debug print routines to direct
502 their output to UART0 serial port on KEYSTONE2 devices.
504 config DEBUG_KEYSTONE_UART1
505 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
506 depends on ARCH_KEYSTONE
507 select DEBUG_UART_8250
509 Say Y here if you want the debug print routines to direct
510 their output to UART1 serial port on KEYSTONE2 devices.
512 config DEBUG_LPC18XX_UART0
513 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
514 depends on ARCH_LPC18XX
515 select DEBUG_UART_8250
517 Say Y here if you want kernel low-level debugging support
518 on NXP LPC18xx/43xx UART0.
521 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
522 depends on ARCH_LPC32XX
523 select DEBUG_UART_8250
525 Say Y here if you want kernel low-level debugging support
526 on NXP LPC32xx based platforms.
528 config DEBUG_MESON_UARTAO
529 bool "Kernel low-level debugging via Meson6 UARTAO"
530 depends on ARCH_MESON
532 Say Y here if you want kernel low-lever debugging support
533 on Amlogic Meson6 based platforms on the UARTAO.
535 config DEBUG_MMP_UART2
536 bool "Kernel low-level debugging message via MMP UART2"
538 select DEBUG_UART_8250
540 Say Y here if you want kernel low-level debugging support
543 config DEBUG_MMP_UART3
544 bool "Kernel low-level debugging message via MMP UART3"
546 select DEBUG_UART_8250
548 Say Y here if you want kernel low-level debugging support
551 config DEBUG_MVEBU_UART0
552 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
553 depends on ARCH_MVEBU
554 depends on ARCH_MVEBU && CPU_V7
555 select DEBUG_UART_8250
557 Say Y here if you want kernel low-level debugging support
558 on MVEBU based platforms on UART0.
560 This option should be used with the old bootloaders
561 that left the internal registers mapped at
562 0xd0000000. As of today, this is the case on
563 platforms such as the Globalscale Mirabox or the
564 Plathome OpenBlocks AX3, when using the original
567 This option will not work on older Marvell platforms
568 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
569 the "new bootloader" variant.
571 If the wrong DEBUG_MVEBU_UART* option is selected,
572 when u-boot hands over to the kernel, the system
573 silently crashes, with no serial output at all.
575 config DEBUG_MVEBU_UART0_ALTERNATE
576 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
577 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
578 select DEBUG_UART_8250
580 Say Y here if you want kernel low-level debugging support
581 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
582 Kirkwood, Dove, MV78xx0, Orion5x).
585 This option should be used with the new bootloaders
586 that remap the internal registers at 0xf1000000.
588 If the wrong DEBUG_MVEBU_UART* option is selected,
589 when u-boot hands over to the kernel, the system
590 silently crashes, with no serial output at all.
592 config DEBUG_MVEBU_UART1_ALTERNATE
593 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
594 depends on ARCH_MVEBU
595 select DEBUG_UART_8250
597 Say Y here if you want kernel low-level debugging support
598 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
599 Kirkwood, Dove, MV78xx0, Orion5x).
601 This option should be used with the new bootloaders
602 that remap the internal registers at 0xf1000000.
603 All of the older (pre Armada XP/370) platforms also use
604 this address, regardless of the boot loader version.
606 If the wrong DEBUG_MVEBU_UART* option is selected,
607 when u-boot hands over to the kernel, the system
608 silently crashes, with no serial output at all.
610 config DEBUG_MSTARV7_PMUART
611 bool "Kernel low-level debugging messages via MSTARV7 PM UART"
612 depends on ARCH_MSTARV7
613 select DEBUG_UART_8250
615 Say Y here if you want kernel low-level debugging support
616 for MSTAR ARMv7-based platforms on PM UART.
618 config DEBUG_MT6589_UART0
619 bool "Mediatek mt6589 UART0"
620 depends on ARCH_MEDIATEK
621 select DEBUG_UART_8250
623 Say Y here if you want kernel low-level debugging support
624 for Mediatek mt6589 based platforms on UART0.
626 config DEBUG_MT8127_UART0
627 bool "Mediatek mt8127/mt6592 UART0"
628 depends on ARCH_MEDIATEK
629 select DEBUG_UART_8250
631 Say Y here if you want kernel low-level debugging support
632 for Mediatek mt8127 based platforms on UART0.
634 config DEBUG_MT8135_UART3
635 bool "Mediatek mt8135 UART3"
636 depends on ARCH_MEDIATEK
637 select DEBUG_UART_8250
639 Say Y here if you want kernel low-level debugging support
640 for Mediatek mt8135 based platforms on UART3.
642 config DEBUG_NOMADIK_UART
643 bool "Kernel low-level debugging messages via NOMADIK UART"
644 depends on ARCH_NOMADIK
645 select DEBUG_UART_PL01X
647 Say Y here if you want kernel low-level debugging support
648 on NOMADIK based platforms.
650 config DEBUG_NSPIRE_CLASSIC_UART
651 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
652 depends on ARCH_NSPIRE
653 select DEBUG_UART_8250
655 Say Y here if you want kernel low-level debugging support
656 on TI-NSPIRE classic models.
658 config DEBUG_NSPIRE_CX_UART
659 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
660 depends on ARCH_NSPIRE
661 select DEBUG_UART_PL01X
663 Say Y here if you want kernel low-level debugging support
664 on TI-NSPIRE CX models.
666 config DEBUG_OMAP1UART1
667 bool "Kernel low-level debugging via OMAP1 UART1"
668 depends on ARCH_OMAP1
669 select DEBUG_UART_8250
671 Say Y here if you want kernel low-level debugging support
672 on OMAP1 based platforms (except OMAP730) on the UART1.
674 config DEBUG_OMAP1UART2
675 bool "Kernel low-level debugging via OMAP1 UART2"
676 depends on ARCH_OMAP1
677 select DEBUG_UART_8250
679 Say Y here if you want kernel low-level debugging support
680 on OMAP1 based platforms (except OMAP730) on the UART2.
682 config DEBUG_OMAP1UART3
683 bool "Kernel low-level debugging via OMAP1 UART3"
684 depends on ARCH_OMAP1
685 select DEBUG_UART_8250
687 Say Y here if you want kernel low-level debugging support
688 on OMAP1 based platforms (except OMAP730) on the UART3.
690 config DEBUG_OMAP2UART1
691 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
692 depends on ARCH_OMAP2PLUS
693 select DEBUG_UART_8250
695 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
696 omap3 torpedo and 3530 lv som.
698 config DEBUG_OMAP2UART2
699 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
700 depends on ARCH_OMAP2PLUS
701 select DEBUG_UART_8250
703 config DEBUG_OMAP2UART3
704 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
705 depends on ARCH_OMAP2PLUS
706 select DEBUG_UART_8250
708 config DEBUG_OMAP3UART3
709 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
710 depends on ARCH_OMAP2PLUS
711 select DEBUG_UART_8250
713 This covers at least cm_t3x, beagle, crane, devkit8000,
714 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
717 config DEBUG_OMAP4UART3
718 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
719 depends on ARCH_OMAP2PLUS
720 select DEBUG_UART_8250
722 config DEBUG_OMAP3UART4
723 bool "Kernel low-level debugging messages via OMAP36XX UART4"
724 depends on ARCH_OMAP2PLUS
725 select DEBUG_UART_8250
727 config DEBUG_OMAP4UART4
728 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
729 depends on ARCH_OMAP2PLUS
730 select DEBUG_UART_8250
732 config DEBUG_OMAP7XXUART1
733 bool "Kernel low-level debugging via OMAP730 UART1"
734 depends on ARCH_OMAP730
735 select DEBUG_UART_8250
737 Say Y here if you want kernel low-level debugging support
738 on OMAP730 based platforms on the UART1.
740 config DEBUG_OMAP7XXUART2
741 bool "Kernel low-level debugging via OMAP730 UART2"
742 depends on ARCH_OMAP730
743 select DEBUG_UART_8250
745 Say Y here if you want kernel low-level debugging support
746 on OMAP730 based platforms on the UART2.
748 config DEBUG_OMAP7XXUART3
749 bool "Kernel low-level debugging via OMAP730 UART3"
750 depends on ARCH_OMAP730
751 select DEBUG_UART_8250
753 Say Y here if you want kernel low-level debugging support
754 on OMAP730 based platforms on the UART3.
756 config DEBUG_TI81XXUART1
757 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
758 depends on ARCH_OMAP2PLUS
759 select DEBUG_UART_8250
761 config DEBUG_TI81XXUART2
762 bool "Kernel low-level debugging messages via TI81XX UART2"
763 depends on ARCH_OMAP2PLUS
764 select DEBUG_UART_8250
766 config DEBUG_TI81XXUART3
767 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
768 depends on ARCH_OMAP2PLUS
769 select DEBUG_UART_8250
771 config DEBUG_AM33XXUART1
772 bool "Kernel low-level debugging messages via AM33XX UART1"
773 depends on ARCH_OMAP2PLUS
774 select DEBUG_UART_8250
776 config DEBUG_ZOOM_UART
777 bool "Kernel low-level debugging messages via Zoom2/3 UART"
778 depends on ARCH_OMAP2PLUS
779 select DEBUG_OMAP2PLUS_UART
781 config DEBUG_PXA_UART1
783 bool "Use PXA UART1 for low-level debug"
784 select DEBUG_UART_8250
786 Say Y here if you want kernel low-level debugging support
789 config DEBUG_QCOM_UARTDM
790 bool "Kernel low-level debugging messages via QCOM UARTDM"
793 Say Y here if you want the debug print routines to direct
794 their output to the serial port on Qualcomm devices.
796 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
797 APQ8064 0x16640000 0xf0040000
798 APQ8084 0xf995e000 0xfa75e000
799 IPQ4019 0x078af000 0xf78af000
800 MSM8X60 0x19c40000 0xf0040000
801 MSM8960 0x16440000 0xf0040000
802 MSM8974 0xf991e000 0xfa71e000
804 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
805 options based on your needs.
807 config DEBUG_REALVIEW_STD_PORT
808 bool "RealView Default UART"
809 depends on ARCH_REALVIEW
810 select DEBUG_UART_PL01X
812 Say Y here if you want the debug print routines to direct
813 their output to the serial port on RealView EB, PB11MP, PBA8
816 config DEBUG_REALVIEW_PB1176_PORT
817 bool "RealView PB1176 UART"
818 depends on MACH_REALVIEW_PB1176
819 select DEBUG_UART_PL01X
821 Say Y here if you want the debug print routines to direct
822 their output to the standard serial port on the RealView
825 config DEBUG_RV1108_UART0
826 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
827 depends on ARCH_ROCKCHIP
828 select DEBUG_UART_8250
830 Say Y here if you want kernel low-level debugging support
831 on Rockchip RV1108 based platforms.
833 config DEBUG_RV1108_UART1
834 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
835 depends on ARCH_ROCKCHIP
836 select DEBUG_UART_8250
838 Say Y here if you want kernel low-level debugging support
839 on Rockchip RV1108 based platforms.
841 config DEBUG_RV1108_UART2
842 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
843 depends on ARCH_ROCKCHIP
844 select DEBUG_UART_8250
846 Say Y here if you want kernel low-level debugging support
847 on Rockchip RV1108 based platforms.
849 config DEBUG_RK29_UART0
850 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
851 depends on ARCH_ROCKCHIP
852 select DEBUG_UART_8250
854 Say Y here if you want kernel low-level debugging support
855 on Rockchip based platforms.
857 config DEBUG_RK29_UART1
858 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
859 depends on ARCH_ROCKCHIP
860 select DEBUG_UART_8250
862 Say Y here if you want kernel low-level debugging support
863 on Rockchip based platforms.
865 config DEBUG_RK29_UART2
866 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
867 depends on ARCH_ROCKCHIP
868 select DEBUG_UART_8250
870 Say Y here if you want kernel low-level debugging support
871 on Rockchip based platforms.
873 config DEBUG_RK3X_UART0
874 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
875 depends on ARCH_ROCKCHIP
876 select DEBUG_UART_8250
878 Say Y here if you want kernel low-level debugging support
879 on Rockchip based platforms.
881 config DEBUG_RK3X_UART1
882 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
883 depends on ARCH_ROCKCHIP
884 select DEBUG_UART_8250
886 Say Y here if you want kernel low-level debugging support
887 on Rockchip based platforms.
889 config DEBUG_RK3X_UART2
890 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
891 depends on ARCH_ROCKCHIP
892 select DEBUG_UART_8250
894 Say Y here if you want kernel low-level debugging support
895 on Rockchip based platforms.
897 config DEBUG_RK3X_UART3
898 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
899 depends on ARCH_ROCKCHIP
900 select DEBUG_UART_8250
902 Say Y here if you want kernel low-level debugging support
903 on Rockchip based platforms.
905 config DEBUG_RK32_UART2
906 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
907 depends on ARCH_ROCKCHIP
908 select DEBUG_UART_8250
910 Say Y here if you want kernel low-level debugging support
911 on Rockchip RK32xx based platforms.
913 config DEBUG_R7S72100_SCIF2
914 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
915 depends on ARCH_R7S72100
917 Say Y here if you want kernel low-level debugging support
918 via SCIF2 on Renesas RZ/A1H (R7S72100).
920 config DEBUG_R7S9210_SCIF2
921 bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
922 depends on ARCH_R7S9210
924 Say Y here if you want kernel low-level debugging support
925 via SCIF2 on Renesas RZ/A2M (R7S9210).
927 config DEBUG_R7S9210_SCIF4
928 bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
929 depends on ARCH_R7S9210
931 Say Y here if you want kernel low-level debugging support
932 via SCIF4 on Renesas RZ/A2M (R7S9210).
934 config DEBUG_RCAR_GEN1_SCIF0
935 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
936 depends on ARCH_R8A7778
938 Say Y here if you want kernel low-level debugging support
939 via SCIF0 on Renesas R-Car M1A (R8A7778).
941 config DEBUG_RCAR_GEN1_SCIF2
942 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
943 depends on ARCH_R8A7779
945 Say Y here if you want kernel low-level debugging support
946 via SCIF2 on Renesas R-Car H1 (R8A7779).
948 config DEBUG_RCAR_GEN2_SCIF0
949 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
950 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
951 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
953 Say Y here if you want kernel low-level debugging support
954 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
955 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
958 config DEBUG_RCAR_GEN2_SCIF1
959 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
960 depends on ARCH_R8A77470
962 Say Y here if you want kernel low-level debugging support
963 via SCIF1 on Renesas RZ/G1C (R8A77470).
965 config DEBUG_RCAR_GEN2_SCIF2
966 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
967 depends on ARCH_R8A7794
969 Say Y here if you want kernel low-level debugging support
970 via SCIF2 on Renesas R-Car E2 (R8A7794).
972 config DEBUG_RCAR_GEN2_SCIF4
973 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
974 depends on ARCH_R8A7745
976 Say Y here if you want kernel low-level debugging support
977 via SCIF4 on Renesas RZ/G1E (R8A7745).
979 config DEBUG_RCAR_GEN2_SCIFA2
980 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
981 depends on ARCH_R8A7742
983 Say Y here if you want kernel low-level debugging support
984 via SCIFA2 on Renesas RZ/G1H (R8A7742).
986 config DEBUG_RMOBILE_SCIFA0
987 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
988 depends on ARCH_R8A73A4
990 Say Y here if you want kernel low-level debugging support
991 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
993 config DEBUG_RMOBILE_SCIFA1
994 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
995 depends on ARCH_R8A7740
997 Say Y here if you want kernel low-level debugging support
998 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
1000 config DEBUG_RMOBILE_SCIFA4
1001 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1002 depends on ARCH_SH73A0
1004 Say Y here if you want kernel low-level debugging support
1005 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1007 config DEBUG_S3C_UART0
1008 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1009 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1010 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1011 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1012 select DEBUG_S5PV210_UART if ARCH_S5PV210
1013 bool "Use Samsung S3C UART 0 for low-level debug"
1015 Say Y here if you want the debug print routines to direct
1016 their output to UART 0. The port must have been initialised
1017 by the boot-loader before use.
1019 config DEBUG_S3C_UART1
1020 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1021 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1022 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1023 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1024 select DEBUG_S5PV210_UART if ARCH_S5PV210
1025 bool "Use Samsung S3C UART 1 for low-level debug"
1027 Say Y here if you want the debug print routines to direct
1028 their output to UART 1. The port must have been initialised
1029 by the boot-loader before use.
1031 config DEBUG_S3C_UART2
1032 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1033 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1034 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1035 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1036 select DEBUG_S5PV210_UART if ARCH_S5PV210
1037 bool "Use Samsung S3C UART 2 for low-level debug"
1039 Say Y here if you want the debug print routines to direct
1040 their output to UART 2. The port must have been initialised
1041 by the boot-loader before use.
1043 config DEBUG_S3C_UART3
1044 depends on ARCH_EXYNOS || ARCH_S5PV210
1045 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1046 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1047 select DEBUG_S5PV210_UART if ARCH_S5PV210
1048 bool "Use Samsung S3C UART 3 for low-level debug"
1050 Say Y here if you want the debug print routines to direct
1051 their output to UART 3. The port must have been initialised
1052 by the boot-loader before use.
1054 config DEBUG_S3C2410_UART0
1055 depends on ARCH_S3C24XX
1056 select DEBUG_S3C2410_UART
1057 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1059 Say Y here if you want the debug print routines to direct
1060 their output to UART 0. The port must have been initialised
1061 by the boot-loader before use.
1063 config DEBUG_S3C2410_UART1
1064 depends on ARCH_S3C24XX
1065 select DEBUG_S3C2410_UART
1066 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1068 Say Y here if you want the debug print routines to direct
1069 their output to UART 1. The port must have been initialised
1070 by the boot-loader before use.
1072 config DEBUG_S3C2410_UART2
1073 depends on ARCH_S3C24XX
1074 select DEBUG_S3C2410_UART
1075 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1077 Say Y here if you want the debug print routines to direct
1078 their output to UART 2. The port must have been initialised
1079 by the boot-loader before use.
1082 depends on ARCH_SA1100
1083 bool "Use SA1100 UARTs for low-level debug"
1085 Say Y here if you want kernel low-level debugging support
1086 on SA-11x0 UART ports. The kernel will check for the first
1087 enabled UART in a sequence 3-1-2.
1089 config DEBUG_SD5203_UART
1090 bool "Hisilicon SD5203 Debug UART"
1091 depends on ARCH_SD5203
1092 select DEBUG_UART_8250
1094 Say Y here if you want kernel low-level debugging support
1097 config DEBUG_SOCFPGA_UART0
1098 depends on ARCH_INTEL_SOCFPGA
1099 bool "Use SOCFPGA UART0 for low-level debug"
1100 select DEBUG_UART_8250
1102 Say Y here if you want kernel low-level debugging support
1103 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1105 config DEBUG_SOCFPGA_ARRIA10_UART1
1106 depends on ARCH_INTEL_SOCFPGA
1107 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1108 select DEBUG_UART_8250
1110 Say Y here if you want kernel low-level debugging support
1111 on SOCFPGA(Arria 10) based platforms.
1113 config DEBUG_SOCFPGA_CYCLONE5_UART1
1114 depends on ARCH_INTEL_SOCFPGA
1115 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1116 select DEBUG_UART_8250
1118 Say Y here if you want kernel low-level debugging support
1119 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1121 config DEBUG_SUN9I_UART0
1122 bool "Kernel low-level debugging messages via sun9i UART0"
1123 depends on MACH_SUN9I
1124 select DEBUG_UART_8250
1126 Say Y here if you want kernel low-level debugging support
1127 on Allwinner A80 based platforms on the UART0.
1129 config DEBUG_SUNXI_UART0
1130 bool "Kernel low-level debugging messages via sunXi UART0"
1131 depends on ARCH_SUNXI
1132 select DEBUG_UART_8250
1134 Say Y here if you want kernel low-level debugging support
1135 on Allwinner A1X based platforms on the UART0.
1137 config DEBUG_SUNXI_UART1
1138 bool "Kernel low-level debugging messages via sunXi UART1"
1139 depends on ARCH_SUNXI
1140 select DEBUG_UART_8250
1142 Say Y here if you want kernel low-level debugging support
1143 on Allwinner A1X based platforms on the UART1.
1145 config DEBUG_SUNXI_R_UART
1146 bool "Kernel low-level debugging messages via sunXi R_UART"
1147 depends on MACH_SUN6I || MACH_SUN8I
1148 select DEBUG_UART_8250
1150 Say Y here if you want kernel low-level debugging support
1151 on Allwinner A31/A23 based platforms on the R_UART.
1153 config DEBUG_SPEAR3XX
1154 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1155 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1156 select DEBUG_UART_PL01X
1158 Say Y here if you want kernel low-level debugging support
1159 on ST SPEAr based platforms.
1161 config DEBUG_SPEAR13XX
1162 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1163 depends on ARCH_SPEAR13XX
1164 select DEBUG_UART_PL01X
1166 Say Y here if you want kernel low-level debugging support
1167 on ST SPEAr13xx based platforms.
1169 config DEBUG_STIH41X_ASC2
1170 bool "Use StiH415/416 ASC2 UART for low-level debug"
1173 Say Y here if you want kernel low-level debugging support
1174 on STiH415/416 based platforms like b2000, which has
1175 default UART wired up to ASC2.
1179 config DEBUG_STIH41X_SBC_ASC1
1180 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1183 Say Y here if you want kernel low-level debugging support
1184 on STiH415/416 based platforms like b2020. which has
1185 default UART wired up to SBC ASC1.
1189 config DEBUG_STIH418_SBC_ASC0
1190 bool "Use StiH418 SBC ASC0 UART for low-level debug"
1193 Say Y here if you want kernel low-level debugging support
1194 on STiH418 based platforms which has default UART wired
1199 config STM32F4_DEBUG_UART
1200 bool "Use STM32F4 UART for low-level debug"
1201 depends on MACH_STM32F429 || MACH_STM32F469
1202 select DEBUG_STM32_UART
1204 Say Y here if you want kernel low-level debugging support
1205 on STM32F4 based platforms, which default UART is wired on
1206 USART1, but another UART instance can be selected by modifying
1207 CONFIG_DEBUG_UART_PHYS.
1211 config STM32F7_DEBUG_UART
1212 bool "Use STM32F7 UART for low-level debug"
1213 depends on MACH_STM32F746 || MACH_STM32F769
1214 select DEBUG_STM32_UART
1216 Say Y here if you want kernel low-level debugging support
1217 on STM32F7 based platforms, which default UART is wired on
1218 USART1, but another UART instance can be selected by modifying
1219 CONFIG_DEBUG_UART_PHYS.
1223 config STM32H7_DEBUG_UART
1224 bool "Use STM32H7 UART for low-level debug"
1225 depends on MACH_STM32H743
1226 select DEBUG_STM32_UART
1228 Say Y here if you want kernel low-level debugging support
1229 on STM32H7 based platforms, which default UART is wired on
1230 USART1, but another UART instance can be selected by modifying
1231 CONFIG_DEBUG_UART_PHYS.
1235 config STM32MP1_DEBUG_UART
1236 bool "Use STM32MP1 UART for low-level debug"
1237 depends on MACH_STM32MP157
1238 select DEBUG_STM32_UART
1240 Say Y here if you want kernel low-level debugging support
1241 on STM32MP1 based platforms, wich default UART is wired on
1242 UART4, but another UART instance can be selected by modifying
1243 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1247 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1248 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1249 depends on ARCH_TEGRA
1250 select DEBUG_TEGRA_UART
1252 Automatically determines which UART to use for low-level
1253 debug based on the ODMDATA value. This value is part of
1254 the BCT, and is written to the boot memory device using
1255 nvflash, or other flashing tool. When bits 19:18 are 3,
1256 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1259 config TEGRA_DEBUG_UARTA
1260 bool "Kernel low-level debugging messages via Tegra UART A"
1261 depends on ARCH_TEGRA
1262 select DEBUG_TEGRA_UART
1264 Say Y here if you want kernel low-level debugging support
1265 on Tegra based platforms.
1267 config TEGRA_DEBUG_UARTB
1268 bool "Kernel low-level debugging messages via Tegra UART B"
1269 depends on ARCH_TEGRA
1270 select DEBUG_TEGRA_UART
1272 Say Y here if you want kernel low-level debugging support
1273 on Tegra based platforms.
1275 config TEGRA_DEBUG_UARTC
1276 bool "Kernel low-level debugging messages via Tegra UART C"
1277 depends on ARCH_TEGRA
1278 select DEBUG_TEGRA_UART
1280 Say Y here if you want kernel low-level debugging support
1281 on Tegra based platforms.
1283 config TEGRA_DEBUG_UARTD
1284 bool "Kernel low-level debugging messages via Tegra UART D"
1285 depends on ARCH_TEGRA
1286 select DEBUG_TEGRA_UART
1288 Say Y here if you want kernel low-level debugging support
1289 on Tegra based platforms.
1291 config TEGRA_DEBUG_UARTE
1292 bool "Kernel low-level debugging messages via Tegra UART E"
1293 depends on ARCH_TEGRA
1294 select DEBUG_TEGRA_UART
1296 Say Y here if you want kernel low-level debugging support
1297 on Tegra based platforms.
1299 config DEBUG_UX500_UART
1300 depends on ARCH_U8500
1301 bool "Use Ux500 UART for low-level debug"
1303 Say Y here if you want kernel low-level debugging support
1304 on Ux500 based platforms.
1306 config DEBUG_VERSATILE
1307 bool "Kernel low-level debugging messages via ARM Versatile UART"
1308 depends on ARCH_VERSATILE
1309 select DEBUG_UART_PL01X
1311 Say Y here if you want kernel low-level debugging support
1312 on ARM Versatile platforms.
1314 config DEBUG_VEXPRESS_UART0_DETECT
1315 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1316 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1318 This option enables a simple heuristic which tries to determine
1319 the motherboard's memory map variant (original or RS1) and then
1320 choose the relevant UART0 base address.
1322 Note that this will only work with standard A-class core tiles,
1323 and may fail with non-standard SMM or custom software models.
1325 config DEBUG_VEXPRESS_UART0_CA9
1326 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1327 depends on ARCH_VEXPRESS
1328 select DEBUG_UART_PL01X
1330 This option selects UART0 at 0x10009000. Except for custom models,
1331 this applies only to the V2P-CA9 tile.
1333 config DEBUG_VEXPRESS_UART0_RS1
1334 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1335 depends on ARCH_VEXPRESS
1336 select DEBUG_UART_PL01X
1338 This option selects UART0 at 0x1c090000. This applies to most
1339 of the tiles using the RS1 memory map, including all new A-class
1340 core tiles, FPGA-based SMMs and software models.
1342 config DEBUG_VEXPRESS_UART0_CRX
1343 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1344 depends on ARCH_VEXPRESS && !MMU
1345 select DEBUG_UART_PL01X
1347 This option selects UART0 at 0xb0090000. This is appropriate for
1348 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1350 config DEBUG_VF_UART
1352 depends on SOC_VF610
1354 Say Y here if you want kernel low-level debugging support
1355 on Vybrid based platforms.
1357 config DEBUG_VT8500_UART0
1358 bool "Use UART0 on VIA/Wondermedia SoCs"
1359 depends on ARCH_VT8500
1361 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1362 devices, including VT8500, WM8505, WM8650 and WM8850.
1364 config DEBUG_ZYNQ_UART0
1365 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1366 depends on ARCH_ZYNQ
1368 Say Y here if you want the debug print routines to direct
1369 their output to UART0 on the Zynq platform.
1371 config DEBUG_ZYNQ_UART1
1372 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1373 depends on ARCH_ZYNQ
1375 Say Y here if you want the debug print routines to direct
1376 their output to UART1 on the Zynq platform.
1378 If you have a ZC702 board and want early boot messages to
1379 appear on the USB serial adaptor, select this option.
1382 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1384 Say Y here if you want the debug print routines to direct
1385 their output to the EmbeddedICE macrocell's DCC channel using
1386 co-processor 14. This is known to work on the ARM9 style ICE
1387 channel and on the XScale with the PEEDI.
1389 Note that the system will appear to hang during boot if there
1390 is nothing connected to read from the DCC.
1392 config DEBUG_SEMIHOSTING
1393 bool "Kernel low-level debug output via semihosting I/O"
1395 Semihosting enables code running on an ARM target to use
1396 the I/O facilities on a host debugger/emulator through a
1397 simple SVC call. The host debugger or emulator must have
1398 semihosting enabled for the special svc call to be trapped
1399 otherwise the kernel will crash.
1401 This is known to work with OpenOCD, as well as
1402 ARM's Fast Models, or any other controlling environment
1403 that implements semihosting.
1405 For more details about semihosting, please see
1406 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1408 config DEBUG_LL_UART_8250
1409 bool "Kernel low-level debugging via 8250 UART"
1411 Say Y here if you wish the debug print routes to direct
1412 their output to an 8250 UART. You can use this option
1413 to provide the parameters for the 8250 UART rather than
1414 selecting one of the platform specific options above if
1415 you know the parameters for the port.
1417 This option is preferred over the platform specific
1418 options; the platform specific options are deprecated
1419 and will be soon removed.
1421 config DEBUG_LL_UART_PL01X
1422 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1424 Say Y here if you wish the debug print routes to direct
1425 their output to a PL01x Primecell UART. You can use
1426 this option to provide the parameters for the UART
1427 rather than selecting one of the platform specific
1428 options above if you know the parameters for the port.
1430 This option is preferred over the platform specific
1431 options; the platform specific options are deprecated
1432 and will be soon removed.
1436 config DEBUG_AT91_UART
1438 depends on ARCH_AT91
1440 config DEBUG_EXYNOS_UART
1443 config DEBUG_S3C2410_UART
1445 select DEBUG_S3C24XX_UART
1447 config DEBUG_S3C24XX_UART
1450 config DEBUG_S3C64XX_UART
1453 config DEBUG_S5PV210_UART
1456 config DEBUG_S3C_UART
1457 depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \
1458 DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \
1461 default "0" if DEBUG_S3C_UART0
1462 default "1" if DEBUG_S3C_UART1
1463 default "2" if DEBUG_S3C_UART2
1464 default "3" if DEBUG_S3C_UART3
1466 config DEBUG_OMAP2PLUS_UART
1468 depends on ARCH_OMAP2PLUS
1470 config DEBUG_IMX_UART_PORT
1471 int "i.MX Debug UART Port Selection"
1472 depends on DEBUG_IMX1_UART || \
1473 DEBUG_IMX25_UART || \
1474 DEBUG_IMX21_IMX27_UART || \
1475 DEBUG_IMX31_UART || \
1476 DEBUG_IMX35_UART || \
1477 DEBUG_IMX50_UART || \
1478 DEBUG_IMX51_UART || \
1479 DEBUG_IMX53_UART || \
1480 DEBUG_IMX6Q_UART || \
1481 DEBUG_IMX6SL_UART || \
1482 DEBUG_IMX6SX_UART || \
1483 DEBUG_IMX6UL_UART || \
1487 Choose UART port on which kernel low-level debug messages
1490 config DEBUG_VF_UART_PORT
1491 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1494 depends on SOC_VF610
1496 Choose UART port on which kernel low-level debug messages
1499 config DEBUG_TEGRA_UART
1501 depends on ARCH_TEGRA
1503 config DEBUG_STM32_UART
1505 depends on ARCH_STM32
1507 config DEBUG_UART_FLOW_CONTROL
1508 bool "Enable flow control (CTS) for the debug UART"
1510 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1512 Some UART ports are connected to terminals that will use modem
1513 control signals to indicate whether they are ready to receive text.
1514 In practice this means that the terminal is asserting the special
1515 control signal CTS (Clear To Send). If your debug UART supports
1516 this and your debug terminal will require it, enable this option.
1518 config DEBUG_LL_INCLUDE
1520 default "debug/sa1100.S" if DEBUG_SA1100
1521 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1522 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1523 default "debug/at91.S" if DEBUG_AT91_UART
1524 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1525 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1526 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1527 default "debug/meson.S" if DEBUG_MESON_UARTAO
1528 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1529 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1530 default "debug/icedcc.S" if DEBUG_ICEDCC
1531 default "debug/imx.S" if DEBUG_IMX1_UART || \
1532 DEBUG_IMX25_UART || \
1533 DEBUG_IMX21_IMX27_UART || \
1534 DEBUG_IMX31_UART || \
1535 DEBUG_IMX35_UART || \
1536 DEBUG_IMX50_UART || \
1537 DEBUG_IMX51_UART || \
1538 DEBUG_IMX53_UART ||\
1539 DEBUG_IMX6Q_UART || \
1540 DEBUG_IMX6SL_UART || \
1541 DEBUG_IMX6SX_UART || \
1542 DEBUG_IMX6UL_UART || \
1544 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1545 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1546 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1547 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1548 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1549 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1550 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1551 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1552 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1553 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1554 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1555 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1556 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1557 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1558 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1559 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1560 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1561 default "debug/sti.S" if DEBUG_STIH41X_ASC2
1562 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1563 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1564 default "debug/stm32.S" if DEBUG_STM32_UART
1565 default "debug/tegra.S" if DEBUG_TEGRA_UART
1566 default "debug/ux500.S" if DEBUG_UX500_UART
1567 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1568 default "debug/vf.S" if DEBUG_VF_UART
1569 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1570 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1571 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1572 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1573 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1574 default "mach/debug-macro.S"
1576 # Compatibility options for PL01x
1577 config DEBUG_UART_PL01X
1580 # Compatibility options for 8250
1581 config DEBUG_UART_8250
1582 def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
1584 config DEBUG_UART_PHYS
1585 hex "Physical base address of debug UART"
1586 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1587 default 0x01c28000 if DEBUG_SUNXI_UART0
1588 default 0x01c28400 if DEBUG_SUNXI_UART1
1589 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1590 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1591 default 0x01f02800 if DEBUG_SUNXI_R_UART
1592 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1593 default 0x02531000 if DEBUG_KEYSTONE_UART1
1594 default 0x03010fe0 if ARCH_RPC
1595 default 0x07000000 if DEBUG_SUN9I_UART0
1596 default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1597 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1598 DEBUG_VEXPRESS_UART0_CA9
1599 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1600 default 0x10124000 if DEBUG_RK3X_UART0
1601 default 0x10126000 if DEBUG_RK3X_UART1
1602 default 0x101f1000 if DEBUG_VERSATILE
1603 default 0x101fb000 if DEBUG_NOMADIK_UART
1604 default 0x10210000 if DEBUG_RV1108_UART2
1605 default 0x10220000 if DEBUG_RV1108_UART1
1606 default 0x10230000 if DEBUG_RV1108_UART0
1607 default 0x11002000 if DEBUG_MT8127_UART0
1608 default 0x11006000 if DEBUG_MT6589_UART0
1609 default 0x11009000 if DEBUG_MT8135_UART3
1610 default 0x16000000 if DEBUG_INTEGRATOR
1611 default 0x1600d000 if DEBUG_SD5203_UART
1612 default 0x18000300 if DEBUG_BCM_5301X
1613 default 0x18000400 if DEBUG_BCM_HR2
1614 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1615 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1616 default 0x1f221000 if DEBUG_MSTARV7_PMUART
1617 default 0x20001000 if DEBUG_HIP01_UART
1618 default 0x20060000 if DEBUG_RK29_UART0
1619 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1620 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1621 default 0x20201000 if DEBUG_BCM2835
1622 default 0x3e000000 if DEBUG_BCM_KONA_UART
1623 default 0x3f201000 if DEBUG_BCM2836
1624 default 0x40010000 if STM32MP1_DEBUG_UART
1625 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1627 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1628 default 0x40081000 if DEBUG_LPC18XX_UART0
1629 default 0x40090000 if DEBUG_LPC32XX
1630 default 0x40100000 if DEBUG_PXA_UART1
1631 default 0x42000000 if DEBUG_GEMINI
1632 default 0x44e09000 if DEBUG_AM33XXUART1
1633 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1634 default 0x48022000 if DEBUG_TI81XXUART2
1635 default 0x48024000 if DEBUG_TI81XXUART3
1636 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1637 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1638 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1639 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1640 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1641 default 0x49020000 if DEBUG_OMAP3UART3
1642 default 0x49042000 if DEBUG_OMAP3UART4
1643 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1644 DEBUG_S3C2410_UART0)
1645 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1646 DEBUG_S3C2410_UART1)
1647 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1648 DEBUG_S3C2410_UART2)
1649 default 0x78000000 if DEBUG_CNS3XXX
1650 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1651 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1652 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1653 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1654 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1655 default 0x80010000 if DEBUG_ASM9260_UART
1656 default 0x80070000 if DEBUG_IMX23_UART
1657 default 0x80074000 if DEBUG_IMX28_UART
1658 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1659 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1660 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1661 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1662 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1663 default 0xd0000000 if DEBUG_SPEAR3XX
1664 default 0xd0012000 if DEBUG_MVEBU_UART0
1665 default 0xc81004c0 if DEBUG_MESON_UARTAO
1666 default 0xd4017000 if DEBUG_MMP_UART2
1667 default 0xd4018000 if DEBUG_MMP_UART3
1668 default 0xe0000000 if DEBUG_SPEAR13XX
1669 default 0xe4007000 if DEBUG_HIP04_UART
1670 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1671 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1672 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1673 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1674 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1675 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1676 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1677 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1678 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1679 default 0xe8009000 if DEBUG_R7S9210_SCIF4
1680 default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1681 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1682 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1683 default 0xf7fc9000 if DEBUG_BERLIN_UART
1684 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1685 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1686 default 0xf991e000 if DEBUG_QCOM_UARTDM
1687 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1688 default 0xfcb00000 if DEBUG_HI3620_UART
1689 default 0xfd883000 if DEBUG_ALPINE_UART0
1690 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1691 default 0xfe800000 if ARCH_IOP32X
1692 default 0xfed32000 if DEBUG_STIH41X_ASC2
1693 default 0xff690000 if DEBUG_RK32_UART2
1694 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1695 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1696 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1697 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1698 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1699 default 0xfff36000 if DEBUG_HIGHBANK_UART
1700 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1701 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1702 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1703 default 0xfffe8600 if DEBUG_BCM63XX_UART
1704 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1705 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1706 depends on ARCH_EP93XX || \
1707 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1708 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1709 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1710 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1711 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1712 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1713 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1714 DEBUG_RCAR_GEN2_SCIFA2 || \
1715 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1716 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1717 DEBUG_S3C64XX_UART || \
1718 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1719 DEBUG_DIGICOLOR_UA0 || \
1720 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1721 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1722 DEBUG_STIH418_SBC_ASC0
1724 config DEBUG_UART_VIRT
1725 hex "Virtual base address of debug UART"
1726 default 0xc881f000 if DEBUG_RV1108_UART2
1727 default 0xc8821000 if DEBUG_RV1108_UART1
1728 default 0xc8912000 if DEBUG_RV1108_UART0
1729 default 0xe0010fe0 if ARCH_RPC
1730 default 0xf0010000 if DEBUG_ASM9260_UART
1731 default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1732 default 0xf01fb000 if DEBUG_NOMADIK_UART
1733 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1734 default 0xf0221000 if DEBUG_MSTARV7_PMUART
1735 default 0xf1000300 if DEBUG_BCM_5301X
1736 default 0xf1000400 if DEBUG_BCM_HR2
1737 default 0xf1002000 if DEBUG_MT8127_UART0
1738 default 0xf1006000 if DEBUG_MT6589_UART0
1739 default 0xf1009000 if DEBUG_MT8135_UART3
1740 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1741 default 0xf11f1000 if DEBUG_VERSATILE
1742 default 0xf1600000 if DEBUG_INTEGRATOR
1743 default 0xf1c28000 if DEBUG_SUNXI_UART0
1744 default 0xf1c28400 if DEBUG_SUNXI_UART1
1745 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1746 default 0xf31004c0 if DEBUG_MESON_UARTAO
1747 default 0xf4090000 if DEBUG_LPC32XX
1748 default 0xf4200000 if DEBUG_GEMINI
1749 default 0xf6200000 if DEBUG_PXA_UART1
1750 default 0xf7000000 if DEBUG_SUN9I_UART0
1751 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1752 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1753 DEBUG_S3C2410_UART0)
1754 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1755 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1756 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1757 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1758 DEBUG_S3C2410_UART1)
1759 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1760 DEBUG_S3C2410_UART2)
1761 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1762 default 0xf7fc9000 if DEBUG_BERLIN_UART
1763 default 0xf8007000 if DEBUG_HIP04_UART
1764 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1765 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1766 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1767 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1768 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1769 default 0xf9e09000 if DEBUG_AM33XXUART1
1770 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1771 default 0xfa022000 if DEBUG_TI81XXUART2
1772 default 0xfa024000 if DEBUG_TI81XXUART3
1773 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1774 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1775 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1776 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1777 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1778 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1779 default 0xfb002000 if DEBUG_CNS3XXX
1780 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1781 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1782 default 0xfb020000 if DEBUG_OMAP3UART3
1783 default 0xfb042000 if DEBUG_OMAP3UART4
1784 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1785 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1786 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1787 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1788 default 0xfd883000 if DEBUG_ALPINE_UART0
1789 default 0xfdd32000 if DEBUG_STIH41X_ASC2
1790 default 0xfe010000 if STM32MP1_DEBUG_UART
1791 default 0xfe017000 if DEBUG_MMP_UART2
1792 default 0xfe018000 if DEBUG_MMP_UART3
1793 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1794 default 0xfe300000 if DEBUG_BCM_KONA_UART
1795 default 0xfe800000 if ARCH_IOP32X
1796 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1797 default 0xfeb24000 if DEBUG_RK3X_UART0
1798 default 0xfeb26000 if DEBUG_RK3X_UART1
1799 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1800 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1801 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1802 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1803 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1804 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1805 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1806 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1807 default 0xfec90000 if DEBUG_RK32_UART2
1808 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1809 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1810 default 0xfed60000 if DEBUG_RK29_UART0
1811 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1812 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1813 default 0xfedc0000 if DEBUG_EP93XX
1814 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1815 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1816 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1817 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1818 default 0xfef36000 if DEBUG_HIGHBANK_UART
1819 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1820 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1821 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1822 default 0xffd01000 if DEBUG_HIP01_UART
1823 default DEBUG_UART_PHYS if !MMU
1824 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1825 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1826 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1827 DEBUG_S3C64XX_UART || \
1828 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1829 DEBUG_DIGICOLOR_UA0 || \
1830 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1831 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1832 DEBUG_STIH418_SBC_ASC0
1834 config DEBUG_UART_8250_SHIFT
1835 int "Register offset shift for the 8250 debug UART"
1836 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1837 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1838 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1840 default 3 if DEBUG_MSTARV7_PMUART
1843 config DEBUG_UART_8250_WORD
1844 bool "Use 32-bit accesses for 8250 UART"
1845 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1846 depends on DEBUG_UART_8250_SHIFT >= 2
1847 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1848 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1849 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1850 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1851 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1852 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1854 config DEBUG_UART_8250_PALMCHIP
1855 bool "8250 UART is Palmchip BK-310x"
1856 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1858 Palmchip provides a UART implementation compatible with 16550
1859 except for having a different register layout. Say Y here if
1860 the debug UART is of this type.
1862 config DEBUG_UNCOMPRESS
1863 bool "Enable decompressor debugging via DEBUG_LL output"
1864 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1865 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1866 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1867 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1869 This option influences the normal decompressor output for
1870 multiplatform kernels. Normally, multiplatform kernels disable
1871 decompressor output because it is not possible to know where to
1872 send the decompressor output.
1874 When this option is set, the selected DEBUG_LL output method
1875 will be re-used for normal decompressor output on multiplatform
1879 config UNCOMPRESS_INCLUDE
1881 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1882 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1883 default "mach/uncompress.h"
1889 Say Y here if you want to have an early console using the
1890 kernel low-level debugging functions. Add earlyprintk to your
1891 kernel parameters to enable this console.
1893 config ARM_KPROBES_TEST
1894 tristate "Kprobes test module"
1895 depends on KPROBES && MODULES
1897 Perform tests of kprobes API and instruction set simulation.
1899 config PID_IN_CONTEXTIDR
1900 bool "Write the current PID to the CONTEXTIDR register"
1901 depends on CPU_COPY_V6
1903 Enabling this option causes the kernel to write the current PID to
1904 the PROCID field of the CONTEXTIDR register, at the expense of some
1905 additional instructions during context switch. Say Y here only if you
1906 are planning to use hardware trace tools with this kernel.
1908 source "drivers/hwtracing/coresight/Kconfig"