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"
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.
82 config BACKTRACE_VERBOSE
83 bool "Verbose backtrace"
86 When the kernel produces a warning or oops, the kernel prints a
87 trace of the call chain. This option controls whether we include
88 the numeric addresses or only include the symbolic information.
90 In most cases, say N here, unless you are intending to debug the
91 kernel and have access to the kernel binary image.
97 bool "Verbose user fault messages"
99 When a user program crashes due to an exception, the kernel can
100 print a brief message explaining what the problem was. This is
101 sometimes helpful for debugging but serves no purpose on a
102 production system. Most people should say N here.
104 In addition, you need to pass user_debug=N on the kernel command
105 line to enable this feature. N consists of the sum of:
107 1 - undefined instruction events
109 4 - invalid data aborts
113 # These options are only for real kernel hackers who want to get their hands dirty.
115 bool "Kernel low-level debugging functions (read help!)"
116 depends on DEBUG_KERNEL
118 Say Y here to include definitions of printascii, printch, printhex
119 in the kernel. This is helpful if you are debugging code that
120 executes before the console is initialized.
122 Note that selecting this option will limit the kernel to a single
123 UART definition, as specified below. Attempting to boot the kernel
124 image on a different platform *will not work*, so this option should
125 not be enabled for kernels that are intended to be portable.
128 prompt "Kernel low-level debugging port"
131 config DEBUG_ALPINE_UART0
132 bool "Kernel low-level debugging messages via Alpine UART0"
133 depends on ARCH_ALPINE
134 select DEBUG_UART_8250
136 Say Y here if you want kernel low-level debugging support
137 on Alpine based platforms.
139 config DEBUG_ASM9260_UART
140 bool "Kernel low-level debugging via asm9260 UART"
141 depends on MACH_ASM9260
143 Say Y here if you want the debug print routines to direct
144 their output to an UART or USART port on asm9260 based
147 DEBUG_UART_PHYS | DEBUG_UART_VIRT
149 0x80000000 | 0xf0000000 | UART0
150 0x80004000 | 0xf0004000 | UART1
151 0x80008000 | 0xf0008000 | UART2
152 0x8000c000 | 0xf000c000 | UART3
153 0x80010000 | 0xf0010000 | UART4
154 0x80014000 | 0xf0014000 | UART5
155 0x80018000 | 0xf0018000 | UART6
156 0x8001c000 | 0xf001c000 | UART7
157 0x80020000 | 0xf0020000 | UART8
158 0x80024000 | 0xf0024000 | UART9
160 config DEBUG_AT91_RM9200_DBGU
161 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
162 select DEBUG_AT91_UART
163 depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60
165 Say Y here if you want kernel low-level debugging support
167 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
168 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
170 config DEBUG_AT91_SAM9263_DBGU
171 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
172 select DEBUG_AT91_UART
173 depends on SOC_AT91SAM9 || SOC_SAMA5D3
175 Say Y here if you want kernel low-level debugging support
177 at91sam9263, at91sam9g45, at91sam9m10,
180 config DEBUG_AT91_SAMA5D2_UART1
181 bool "Kernel low-level debugging on SAMA5D2 UART1"
182 select DEBUG_AT91_UART
183 depends on SOC_SAMA5D2
185 Say Y here if you want kernel low-level debugging support
186 on the UART1 port of sama5d2.
188 config DEBUG_AT91_SAMA5D4_USART3
189 bool "Kernel low-level debugging on SAMA5D4 USART3"
190 select DEBUG_AT91_UART
191 depends on SOC_SAMA5D4
193 Say Y here if you want kernel low-level debugging support
194 on the USART3 port of sama5d4.
196 config DEBUG_AT91_SAMV7_USART1
197 bool "Kernel low-level debugging via SAMV7 USART1"
198 select DEBUG_AT91_UART
201 Say Y here if you want the debug print routines to direct
202 their output to the USART1 port on SAMV7 based
205 config DEBUG_AT91_SAMA7G5_FLEXCOM3
206 bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3"
207 select DEBUG_AT91_UART
208 depends on SOC_SAMA7G5
210 Say Y here if you want kernel low-level debugging support
211 on the FLEXCOM3 port of SAMA7G5.
213 config DEBUG_AT91_LAN966_FLEXCOM
214 bool "Kernel low-level debugging on LAN966 FLEXCOM USART"
215 select DEBUG_AT91_UART
216 depends on SOC_LAN966
218 Say Y here if you want kernel low-level debugging support
219 on the FLEXCOM port of LAN966.
221 DEBUG_UART_PHYS | DEBUG_UART_VIRT
223 0xe0040200 | 0xfd040200 | FLEXCOM0
224 0xe0044200 | 0xfd044200 | FLEXCOM1
225 0xe0060200 | 0xfd060200 | FLEXCOM2
226 0xe0064200 | 0xfd064200 | FLEXCOM3
227 0xe0070200 | 0xfd070200 | FLEXCOM4
229 By default, enabling FLEXCOM3 port. Based on requirement, use
230 DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above
234 bool "Kernel low-level debugging on BCM2835 PL011 UART"
235 depends on ARCH_BCM2835 && ARCH_MULTI_V6
236 select DEBUG_UART_PL01X
239 bool "Kernel low-level debugging on BCM2836 PL011 UART"
240 depends on ARCH_BCM2835 && ARCH_MULTI_V7
241 select DEBUG_UART_PL01X
243 config DEBUG_BCM_5301X
244 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
245 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
246 select DEBUG_UART_8250
249 bool "Kernel low-level debugging on Hurricane 2 UART2"
250 depends on ARCH_BCM_HR2
251 select DEBUG_UART_8250
253 config DEBUG_BCM_IPROC_UART3
254 bool "Kernel low-level debugging on BCM IPROC UART3"
255 depends on ARCH_BCM_CYGNUS
256 select DEBUG_UART_8250
258 Say Y here if you want the debug print routines to direct
259 their output to the third serial port on these devices.
261 config DEBUG_BCM_KONA_UART
262 bool "Kernel low-level debugging messages via BCM KONA UART"
263 depends on ARCH_BCM_MOBILE
264 select DEBUG_UART_8250
266 Say Y here if you want kernel low-level debugging support
267 on Broadcom SoC platforms.
268 This low level debug works for Broadcom
269 mobile SoCs in the Kona family of chips (e.g. bcm28155,
272 config DEBUG_BCM63XX_UART
273 bool "Kernel low-level debugging on BCM63XX UART"
274 depends on ARCH_BCMBCA
276 config DEBUG_BERLIN_UART
277 bool "Marvell Berlin SoC Debug UART"
278 depends on ARCH_BERLIN
279 select DEBUG_UART_8250
281 Say Y here if you want kernel low-level debugging support
282 on Marvell Berlin SoC based platforms.
284 config DEBUG_BRCMSTB_UART
285 bool "Use BRCMSTB UART for low-level debug"
286 depends on ARCH_BRCMSTB
288 Say Y here if you want the debug print routines to direct
289 their output to the first serial port on these devices. The
290 UART physical and virtual address is automatically provided
291 based on the chip identification register value.
293 If you have a Broadcom STB chip and would like early print
294 messages to appear over the UART, select this option.
296 config DEBUG_CLPS711X_UART1
297 bool "Kernel low-level debugging messages via UART1"
298 depends on ARCH_CLPS711X
300 Say Y here if you want the debug print routines to direct
301 their output to the first serial port on these devices.
303 config DEBUG_CLPS711X_UART2
304 bool "Kernel low-level debugging messages via UART2"
305 depends on ARCH_CLPS711X
307 Say Y here if you want the debug print routines to direct
308 their output to the second serial port on these devices.
311 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
312 depends on ARCH_CNS3XXX
313 select DEBUG_UART_8250
315 Say Y here if you want the debug print routines to direct
316 their output to the CNS3xxx UART0.
318 config DEBUG_DAVINCI_DA8XX_UART1
319 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
320 depends on ARCH_DAVINCI_DA8XX
321 select DEBUG_UART_8250
323 Say Y here if you want the debug print routines to direct
324 their output to UART1 serial port on DaVinci DA8XX devices.
326 config DEBUG_DAVINCI_DA8XX_UART2
327 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
328 depends on ARCH_DAVINCI_DA8XX
329 select DEBUG_UART_8250
331 Say Y here if you want the debug print routines to direct
332 their output to UART2 serial port on DaVinci DA8XX devices.
334 config DEBUG_DAVINCI_DMx_UART0
335 bool "Kernel low-level debugging on DaVinci DMx using UART0"
336 depends on ARCH_DAVINCI_DMx
337 select DEBUG_UART_8250
339 Say Y here if you want the debug print routines to direct
340 their output to UART0 serial port on DaVinci DMx devices.
342 config DEBUG_DC21285_PORT
343 bool "Kernel low-level debugging messages via footbridge serial port"
344 depends on FOOTBRIDGE
346 Say Y here if you want the debug print routines to direct
347 their output to the serial port in the DC21285 (Footbridge).
349 config DEBUG_DIGICOLOR_UA0
350 bool "Kernel low-level debugging messages via Digicolor UA0"
351 depends on ARCH_DIGICOLOR
353 Say Y here if you want the debug print routines to direct
354 their output to the UA0 serial port in the CX92755.
357 bool "Kernel low-level debugging messages via ep93xx UART"
358 depends on ARCH_EP93XX
359 select DEBUG_UART_PL01X
361 Say Y here if you want kernel low-level debugging support
362 on Cirrus Logic EP93xx based platforms.
364 config DEBUG_FOOTBRIDGE_COM1
365 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
366 depends on FOOTBRIDGE
367 select DEBUG_UART_8250
369 Say Y here if you want the debug print routines to direct
370 their output to the 8250 at PCI COM1.
373 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
374 depends on ARCH_GEMINI
375 select DEBUG_UART_8250
377 Say Y here if you want kernel low-level debugging support
378 on Cortina Gemini based platforms.
380 config DEBUG_HI3620_UART
381 bool "Hisilicon HI3620 Debug UART"
382 depends on ARCH_HI3xxx
383 select DEBUG_UART_PL01X
385 Say Y here if you want kernel low-level debugging support
388 config DEBUG_HIGHBANK_UART
389 bool "Kernel low-level debugging messages via Highbank UART"
390 depends on ARCH_HIGHBANK
391 select DEBUG_UART_PL01X
393 Say Y here if you want the debug print routines to direct
394 their output to the UART on Highbank based devices.
396 config DEBUG_HIP01_UART
397 bool "Hisilicon Hip01 Debug UART"
398 depends on ARCH_HIP01
399 select DEBUG_UART_8250
401 Say Y here if you want kernel low-level debugging support
404 config DEBUG_HIP04_UART
405 bool "Hisilicon HiP04 Debug UART"
406 depends on ARCH_HIP04
407 select DEBUG_UART_8250
409 Say Y here if you want kernel low-level debugging support
412 config DEBUG_HIX5HD2_UART
413 bool "Hisilicon Hix5hd2 Debug UART"
414 depends on ARCH_HIX5HD2
415 select DEBUG_UART_PL01X
417 Say Y here if you want kernel low-level debugging support
420 config DEBUG_IMX1_UART
421 bool "i.MX1 Debug UART"
424 Say Y here if you want kernel low-level debugging support
427 config DEBUG_IMX23_UART
428 bool "i.MX23 Debug UART"
430 select DEBUG_UART_PL01X
432 Say Y here if you want kernel low-level debugging support
435 config DEBUG_IMX25_UART
436 bool "i.MX25 Debug UART"
439 Say Y here if you want kernel low-level debugging support
442 config DEBUG_IMX27_UART
443 bool "i.MX27 Debug UART"
446 Say Y here if you want kernel low-level debugging support
449 config DEBUG_IMX28_UART
450 bool "i.MX28 Debug UART"
452 select DEBUG_UART_PL01X
454 Say Y here if you want kernel low-level debugging support
457 config DEBUG_IMX31_UART
458 bool "i.MX31 Debug UART"
461 Say Y here if you want kernel low-level debugging support
464 config DEBUG_IMX35_UART
465 bool "i.MX35 Debug UART"
468 Say Y here if you want kernel low-level debugging support
471 config DEBUG_IMX50_UART
472 bool "i.MX50 Debug UART"
475 Say Y here if you want kernel low-level debugging support
478 config DEBUG_IMX51_UART
479 bool "i.MX51 Debug UART"
482 Say Y here if you want kernel low-level debugging support
485 config DEBUG_IMX53_UART
486 bool "i.MX53 Debug UART"
489 Say Y here if you want kernel low-level debugging support
492 config DEBUG_IMX6Q_UART
493 bool "i.MX6Q/DL Debug UART"
496 Say Y here if you want kernel low-level debugging support
499 config DEBUG_IMX6SL_UART
500 bool "i.MX6SL Debug UART"
501 depends on SOC_IMX6SL
503 Say Y here if you want kernel low-level debugging support
506 config DEBUG_IMX6SX_UART
507 bool "i.MX6SX Debug UART"
508 depends on SOC_IMX6SX
510 Say Y here if you want kernel low-level debugging support
513 config DEBUG_IMX6UL_UART
514 bool "i.MX6UL Debug UART"
515 depends on SOC_IMX6UL
517 Say Y here if you want kernel low-level debugging support
520 config DEBUG_IMX7D_UART
521 bool "i.MX7D Debug UART"
524 Say Y here if you want kernel low-level debugging support
527 config DEBUG_INTEGRATOR
528 bool "Kernel low-level debugging messages via ARM Integrator UART"
529 depends on ARCH_INTEGRATOR
530 select DEBUG_UART_PL01X
532 Say Y here if you want kernel low-level debugging support
533 on ARM Integrator platforms.
535 config DEBUG_KEYSTONE_UART0
536 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
537 depends on ARCH_KEYSTONE
538 select DEBUG_UART_8250
540 Say Y here if you want the debug print routines to direct
541 their output to UART0 serial port on KEYSTONE2 devices.
543 config DEBUG_KEYSTONE_UART1
544 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
545 depends on ARCH_KEYSTONE
546 select DEBUG_UART_8250
548 Say Y here if you want the debug print routines to direct
549 their output to UART1 serial port on KEYSTONE2 devices.
551 config DEBUG_LPC18XX_UART0
552 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
553 depends on ARCH_LPC18XX
554 select DEBUG_UART_8250
556 Say Y here if you want kernel low-level debugging support
557 on NXP LPC18xx/43xx UART0.
560 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
561 depends on ARCH_LPC32XX
562 select DEBUG_UART_8250
564 Say Y here if you want kernel low-level debugging support
565 on NXP LPC32xx based platforms.
567 config DEBUG_MESON_UARTAO
568 bool "Kernel low-level debugging via Meson6 UARTAO"
569 depends on ARCH_MESON
571 Say Y here if you want kernel low-lever debugging support
572 on Amlogic Meson6 based platforms on the UARTAO.
574 config DEBUG_MMP_UART2
575 bool "Kernel low-level debugging message via MMP UART2"
577 select DEBUG_UART_8250
579 Say Y here if you want kernel low-level debugging support
582 config DEBUG_MMP_UART3
583 bool "Kernel low-level debugging message via MMP UART3"
585 select DEBUG_UART_8250
587 Say Y here if you want kernel low-level debugging support
590 config DEBUG_MVEBU_UART0
591 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
592 depends on ARCH_MVEBU
593 depends on ARCH_MVEBU && CPU_V7
594 select DEBUG_UART_8250
596 Say Y here if you want kernel low-level debugging support
597 on MVEBU based platforms on UART0.
599 This option should be used with the old bootloaders
600 that left the internal registers mapped at
601 0xd0000000. As of today, this is the case on
602 platforms such as the Globalscale Mirabox or the
603 Plathome OpenBlocks AX3, when using the original
606 This option will not work on older Marvell platforms
607 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
608 the "new bootloader" variant.
610 If the wrong DEBUG_MVEBU_UART* option is selected,
611 when u-boot hands over to the kernel, the system
612 silently crashes, with no serial output at all.
614 config DEBUG_MVEBU_UART0_ALTERNATE
615 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
616 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
617 select DEBUG_UART_8250
619 Say Y here if you want kernel low-level debugging support
620 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
621 Kirkwood, Dove, MV78xx0, Orion5x).
624 This option should be used with the new bootloaders
625 that remap the internal registers at 0xf1000000.
627 If the wrong DEBUG_MVEBU_UART* option is selected,
628 when u-boot hands over to the kernel, the system
629 silently crashes, with no serial output at all.
631 config DEBUG_MVEBU_UART1_ALTERNATE
632 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
633 depends on ARCH_MVEBU
634 select DEBUG_UART_8250
636 Say Y here if you want kernel low-level debugging support
637 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
638 Kirkwood, Dove, MV78xx0, Orion5x).
640 This option should be used with the new bootloaders
641 that remap the internal registers at 0xf1000000.
642 All of the older (pre Armada XP/370) platforms also use
643 this address, regardless of the boot loader version.
645 If the wrong DEBUG_MVEBU_UART* option is selected,
646 when u-boot hands over to the kernel, the system
647 silently crashes, with no serial output at all.
649 config DEBUG_MSTARV7_PMUART
650 bool "Kernel low-level debugging messages via MSTARV7 PM UART"
651 depends on ARCH_MSTARV7
652 select DEBUG_UART_8250
654 Say Y here if you want kernel low-level debugging support
655 for MSTAR ARMv7-based platforms on PM UART.
657 config DEBUG_MT6589_UART0
658 bool "Mediatek mt6589 UART0"
659 depends on ARCH_MEDIATEK
660 select DEBUG_UART_8250
662 Say Y here if you want kernel low-level debugging support
663 for Mediatek mt6589 based platforms on UART0.
665 config DEBUG_MT8127_UART0
666 bool "Mediatek mt8127/mt6592 UART0"
667 depends on ARCH_MEDIATEK
668 select DEBUG_UART_8250
670 Say Y here if you want kernel low-level debugging support
671 for Mediatek mt8127 based platforms on UART0.
673 config DEBUG_MT8135_UART3
674 bool "Mediatek mt8135 UART3"
675 depends on ARCH_MEDIATEK
676 select DEBUG_UART_8250
678 Say Y here if you want kernel low-level debugging support
679 for Mediatek mt8135 based platforms on UART3.
681 config DEBUG_NOMADIK_UART
682 bool "Kernel low-level debugging messages via NOMADIK UART"
683 depends on ARCH_NOMADIK
684 select DEBUG_UART_PL01X
686 Say Y here if you want kernel low-level debugging support
687 on NOMADIK based platforms.
689 config DEBUG_NSPIRE_CLASSIC_UART
690 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
691 depends on ARCH_NSPIRE
692 select DEBUG_UART_8250
694 Say Y here if you want kernel low-level debugging support
695 on TI-NSPIRE classic models.
697 config DEBUG_NSPIRE_CX_UART
698 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
699 depends on ARCH_NSPIRE
700 select DEBUG_UART_PL01X
702 Say Y here if you want kernel low-level debugging support
703 on TI-NSPIRE CX models.
705 config DEBUG_OMAP1UART1
706 bool "Kernel low-level debugging via OMAP1 UART1"
707 depends on ARCH_OMAP1
708 select DEBUG_UART_8250
710 Say Y here if you want kernel low-level debugging support
711 on OMAP1 based platforms (except OMAP730) on the UART1.
713 config DEBUG_OMAP1UART2
714 bool "Kernel low-level debugging via OMAP1 UART2"
715 depends on ARCH_OMAP1
716 select DEBUG_UART_8250
718 Say Y here if you want kernel low-level debugging support
719 on OMAP1 based platforms (except OMAP730) on the UART2.
721 config DEBUG_OMAP1UART3
722 bool "Kernel low-level debugging via OMAP1 UART3"
723 depends on ARCH_OMAP1
724 select DEBUG_UART_8250
726 Say Y here if you want kernel low-level debugging support
727 on OMAP1 based platforms (except OMAP730) on the UART3.
729 config DEBUG_OMAP2UART1
730 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
731 depends on ARCH_OMAP2PLUS
732 select DEBUG_UART_8250
734 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
735 omap3 torpedo and 3530 lv som.
737 config DEBUG_OMAP2UART2
738 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
739 depends on ARCH_OMAP2PLUS
740 select DEBUG_UART_8250
742 config DEBUG_OMAP2UART3
743 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
744 depends on ARCH_OMAP2PLUS
745 select DEBUG_UART_8250
747 config DEBUG_OMAP3UART3
748 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
749 depends on ARCH_OMAP2PLUS
750 select DEBUG_UART_8250
752 This covers at least cm_t3x, beagle, crane, devkit8000,
753 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
756 config DEBUG_OMAP4UART3
757 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
758 depends on ARCH_OMAP2PLUS
759 select DEBUG_UART_8250
761 config DEBUG_OMAP3UART4
762 bool "Kernel low-level debugging messages via OMAP36XX UART4"
763 depends on ARCH_OMAP2PLUS
764 select DEBUG_UART_8250
766 config DEBUG_OMAP4UART4
767 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
768 depends on ARCH_OMAP2PLUS
769 select DEBUG_UART_8250
771 config DEBUG_OMAP7XXUART1
772 bool "Kernel low-level debugging via OMAP730 UART1"
773 depends on ARCH_OMAP730
774 select DEBUG_UART_8250
776 Say Y here if you want kernel low-level debugging support
777 on OMAP730 based platforms on the UART1.
779 config DEBUG_OMAP7XXUART2
780 bool "Kernel low-level debugging via OMAP730 UART2"
781 depends on ARCH_OMAP730
782 select DEBUG_UART_8250
784 Say Y here if you want kernel low-level debugging support
785 on OMAP730 based platforms on the UART2.
787 config DEBUG_OMAP7XXUART3
788 bool "Kernel low-level debugging via OMAP730 UART3"
789 depends on ARCH_OMAP730
790 select DEBUG_UART_8250
792 Say Y here if you want kernel low-level debugging support
793 on OMAP730 based platforms on the UART3.
795 config DEBUG_TI81XXUART1
796 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
797 depends on ARCH_OMAP2PLUS
798 select DEBUG_UART_8250
800 config DEBUG_TI81XXUART2
801 bool "Kernel low-level debugging messages via TI81XX UART2"
802 depends on ARCH_OMAP2PLUS
803 select DEBUG_UART_8250
805 config DEBUG_TI81XXUART3
806 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
807 depends on ARCH_OMAP2PLUS
808 select DEBUG_UART_8250
810 config DEBUG_AM33XXUART1
811 bool "Kernel low-level debugging messages via AM33XX UART1"
812 depends on ARCH_OMAP2PLUS
813 select DEBUG_UART_8250
815 config DEBUG_ZOOM_UART
816 bool "Kernel low-level debugging messages via Zoom2/3 UART"
817 depends on ARCH_OMAP2PLUS
818 select DEBUG_OMAP2PLUS_UART
820 config DEBUG_PXA_UART1
822 bool "Use PXA UART1 for low-level debug"
823 select DEBUG_UART_8250
825 Say Y here if you want kernel low-level debugging support
828 config DEBUG_QCOM_UARTDM
829 bool "Kernel low-level debugging messages via QCOM UARTDM"
832 Say Y here if you want the debug print routines to direct
833 their output to the serial port on Qualcomm devices.
835 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
836 APQ8064 0x16640000 0xf0040000
837 APQ8084 0xf995e000 0xfa75e000
838 IPQ4019 0x078af000 0xf78af000
839 MSM8X60 0x19c40000 0xf0040000
840 MSM8960 0x16440000 0xf0040000
841 MSM8974 0xf991e000 0xfa71e000
843 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
844 options based on your needs.
846 config DEBUG_REALVIEW_STD_PORT
847 bool "RealView Default UART"
848 depends on ARCH_REALVIEW
849 select DEBUG_UART_PL01X
851 Say Y here if you want the debug print routines to direct
852 their output to the serial port on RealView EB, PB11MP, PBA8
855 config DEBUG_REALVIEW_PB1176_PORT
856 bool "RealView PB1176 UART"
857 depends on MACH_REALVIEW_PB1176
858 select DEBUG_UART_PL01X
860 Say Y here if you want the debug print routines to direct
861 their output to the standard serial port on the RealView
864 config DEBUG_RV1108_UART0
865 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
866 depends on ARCH_ROCKCHIP
867 select DEBUG_UART_8250
869 Say Y here if you want kernel low-level debugging support
870 on Rockchip RV1108 based platforms.
872 config DEBUG_RV1108_UART1
873 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
874 depends on ARCH_ROCKCHIP
875 select DEBUG_UART_8250
877 Say Y here if you want kernel low-level debugging support
878 on Rockchip RV1108 based platforms.
880 config DEBUG_RV1108_UART2
881 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
882 depends on ARCH_ROCKCHIP
883 select DEBUG_UART_8250
885 Say Y here if you want kernel low-level debugging support
886 on Rockchip RV1108 based platforms.
888 config DEBUG_RK29_UART0
889 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
890 depends on ARCH_ROCKCHIP
891 select DEBUG_UART_8250
893 Say Y here if you want kernel low-level debugging support
894 on Rockchip based platforms.
896 config DEBUG_RK29_UART1
897 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
898 depends on ARCH_ROCKCHIP
899 select DEBUG_UART_8250
901 Say Y here if you want kernel low-level debugging support
902 on Rockchip based platforms.
904 config DEBUG_RK29_UART2
905 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
906 depends on ARCH_ROCKCHIP
907 select DEBUG_UART_8250
909 Say Y here if you want kernel low-level debugging support
910 on Rockchip based platforms.
912 config DEBUG_RK3X_UART0
913 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
914 depends on ARCH_ROCKCHIP
915 select DEBUG_UART_8250
917 Say Y here if you want kernel low-level debugging support
918 on Rockchip based platforms.
920 config DEBUG_RK3X_UART1
921 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
922 depends on ARCH_ROCKCHIP
923 select DEBUG_UART_8250
925 Say Y here if you want kernel low-level debugging support
926 on Rockchip based platforms.
928 config DEBUG_RK3X_UART2
929 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
930 depends on ARCH_ROCKCHIP
931 select DEBUG_UART_8250
933 Say Y here if you want kernel low-level debugging support
934 on Rockchip based platforms.
936 config DEBUG_RK3X_UART3
937 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
938 depends on ARCH_ROCKCHIP
939 select DEBUG_UART_8250
941 Say Y here if you want kernel low-level debugging support
942 on Rockchip based platforms.
944 config DEBUG_RK32_UART2
945 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
946 depends on ARCH_ROCKCHIP
947 select DEBUG_UART_8250
949 Say Y here if you want kernel low-level debugging support
950 on Rockchip RK32xx based platforms.
952 config DEBUG_R7S72100_SCIF2
953 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
954 depends on ARCH_R7S72100
956 Say Y here if you want kernel low-level debugging support
957 via SCIF2 on Renesas RZ/A1H (R7S72100).
959 config DEBUG_R7S9210_SCIF2
960 bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
961 depends on ARCH_R7S9210
963 Say Y here if you want kernel low-level debugging support
964 via SCIF2 on Renesas RZ/A2M (R7S9210).
966 config DEBUG_R7S9210_SCIF4
967 bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
968 depends on ARCH_R7S9210
970 Say Y here if you want kernel low-level debugging support
971 via SCIF4 on Renesas RZ/A2M (R7S9210).
973 config DEBUG_RCAR_GEN1_SCIF0
974 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
975 depends on ARCH_R8A7778
977 Say Y here if you want kernel low-level debugging support
978 via SCIF0 on Renesas R-Car M1A (R8A7778).
980 config DEBUG_RCAR_GEN1_SCIF2
981 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
982 depends on ARCH_R8A7779
984 Say Y here if you want kernel low-level debugging support
985 via SCIF2 on Renesas R-Car H1 (R8A7779).
987 config DEBUG_RCAR_GEN2_SCIF0
988 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
989 depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \
990 ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
992 Say Y here if you want kernel low-level debugging support
993 via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744),
994 R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
997 config DEBUG_RCAR_GEN2_SCIF1
998 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
999 depends on ARCH_R8A77470
1001 Say Y here if you want kernel low-level debugging support
1002 via SCIF1 on Renesas RZ/G1C (R8A77470).
1004 config DEBUG_RCAR_GEN2_SCIF2
1005 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
1006 depends on ARCH_R8A7794
1008 Say Y here if you want kernel low-level debugging support
1009 via SCIF2 on Renesas R-Car E2 (R8A7794).
1011 config DEBUG_RCAR_GEN2_SCIF4
1012 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
1013 depends on ARCH_R8A7745
1015 Say Y here if you want kernel low-level debugging support
1016 via SCIF4 on Renesas RZ/G1E (R8A7745).
1018 config DEBUG_RCAR_GEN2_SCIFA2
1019 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
1020 depends on ARCH_R8A7742
1022 Say Y here if you want kernel low-level debugging support
1023 via SCIFA2 on Renesas RZ/G1H (R8A7742).
1025 config DEBUG_RMOBILE_SCIFA0
1026 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
1027 depends on ARCH_R8A73A4
1029 Say Y here if you want kernel low-level debugging support
1030 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
1032 config DEBUG_RMOBILE_SCIFA1
1033 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
1034 depends on ARCH_R8A7740
1036 Say Y here if you want kernel low-level debugging support
1037 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
1039 config DEBUG_RMOBILE_SCIFA4
1040 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1041 depends on ARCH_SH73A0
1043 Say Y here if you want kernel low-level debugging support
1044 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1046 config DEBUG_S3C_UART0
1047 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1048 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1049 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1050 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1051 select DEBUG_S5PV210_UART if ARCH_S5PV210
1052 bool "Use Samsung S3C UART 0 for low-level debug"
1054 Say Y here if you want the debug print routines to direct
1055 their output to UART 0. The port must have been initialised
1056 by the boot-loader before use.
1058 config DEBUG_S3C_UART1
1059 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1060 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1061 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1062 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1063 select DEBUG_S5PV210_UART if ARCH_S5PV210
1064 bool "Use Samsung S3C UART 1 for low-level debug"
1066 Say Y here if you want the debug print routines to direct
1067 their output to UART 1. The port must have been initialised
1068 by the boot-loader before use.
1070 config DEBUG_S3C_UART2
1071 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS
1072 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1073 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1074 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1075 select DEBUG_S5PV210_UART if ARCH_S5PV210
1076 bool "Use Samsung S3C UART 2 for low-level debug"
1078 Say Y here if you want the debug print routines to direct
1079 their output to UART 2. The port must have been initialised
1080 by the boot-loader before use.
1082 config DEBUG_S3C_UART3
1083 depends on ARCH_EXYNOS || ARCH_S5PV210
1084 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1085 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1086 select DEBUG_S5PV210_UART if ARCH_S5PV210
1087 bool "Use Samsung S3C UART 3 for low-level debug"
1089 Say Y here if you want the debug print routines to direct
1090 their output to UART 3. The port must have been initialised
1091 by the boot-loader before use.
1093 config DEBUG_S3C2410_UART0
1094 depends on ARCH_S3C24XX
1095 select DEBUG_S3C2410_UART
1096 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1098 Say Y here if you want the debug print routines to direct
1099 their output to UART 0. The port must have been initialised
1100 by the boot-loader before use.
1102 config DEBUG_S3C2410_UART1
1103 depends on ARCH_S3C24XX
1104 select DEBUG_S3C2410_UART
1105 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1107 Say Y here if you want the debug print routines to direct
1108 their output to UART 1. The port must have been initialised
1109 by the boot-loader before use.
1111 config DEBUG_S3C2410_UART2
1112 depends on ARCH_S3C24XX
1113 select DEBUG_S3C2410_UART
1114 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1116 Say Y here if you want the debug print routines to direct
1117 their output to UART 2. The port must have been initialised
1118 by the boot-loader before use.
1121 depends on ARCH_SA1100
1122 bool "Use SA1100 UARTs for low-level debug"
1124 Say Y here if you want kernel low-level debugging support
1125 on SA-11x0 UART ports. The kernel will check for the first
1126 enabled UART in a sequence 3-1-2.
1128 config DEBUG_SD5203_UART
1129 bool "Hisilicon SD5203 Debug UART"
1130 depends on ARCH_SD5203
1131 select DEBUG_UART_8250
1133 Say Y here if you want kernel low-level debugging support
1136 config DEBUG_SOCFPGA_UART0
1137 depends on ARCH_INTEL_SOCFPGA
1138 bool "Use SOCFPGA UART0 for low-level debug"
1139 select DEBUG_UART_8250
1141 Say Y here if you want kernel low-level debugging support
1142 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1144 config DEBUG_SOCFPGA_ARRIA10_UART1
1145 depends on ARCH_INTEL_SOCFPGA
1146 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1147 select DEBUG_UART_8250
1149 Say Y here if you want kernel low-level debugging support
1150 on SOCFPGA(Arria 10) based platforms.
1152 config DEBUG_SOCFPGA_CYCLONE5_UART1
1153 depends on ARCH_INTEL_SOCFPGA
1154 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1155 select DEBUG_UART_8250
1157 Say Y here if you want kernel low-level debugging support
1158 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1160 config DEBUG_SUN9I_UART0
1161 bool "Kernel low-level debugging messages via sun9i UART0"
1162 depends on MACH_SUN9I
1163 select DEBUG_UART_8250
1165 Say Y here if you want kernel low-level debugging support
1166 on Allwinner A80 based platforms on the UART0.
1168 config DEBUG_SUNXI_UART0
1169 bool "Kernel low-level debugging messages via sunXi UART0"
1170 depends on ARCH_SUNXI
1171 select DEBUG_UART_8250
1173 Say Y here if you want kernel low-level debugging support
1174 on Allwinner A1X based platforms on the UART0.
1176 config DEBUG_SUNXI_UART1
1177 bool "Kernel low-level debugging messages via sunXi UART1"
1178 depends on ARCH_SUNXI
1179 select DEBUG_UART_8250
1181 Say Y here if you want kernel low-level debugging support
1182 on Allwinner A1X based platforms on the UART1.
1184 config DEBUG_SUNXI_R_UART
1185 bool "Kernel low-level debugging messages via sunXi R_UART"
1186 depends on MACH_SUN6I || MACH_SUN8I
1187 select DEBUG_UART_8250
1189 Say Y here if you want kernel low-level debugging support
1190 on Allwinner A31/A23 based platforms on the R_UART.
1192 config DEBUG_SPEAR3XX
1193 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1194 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1195 select DEBUG_UART_PL01X
1197 Say Y here if you want kernel low-level debugging support
1198 on ST SPEAr based platforms.
1200 config DEBUG_SPEAR13XX
1201 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1202 depends on ARCH_SPEAR13XX
1203 select DEBUG_UART_PL01X
1205 Say Y here if you want kernel low-level debugging support
1206 on ST SPEAr13xx based platforms.
1208 config DEBUG_STIH41X_ASC2
1209 bool "Use StiH415/416 ASC2 UART for low-level debug"
1212 Say Y here if you want kernel low-level debugging support
1213 on STiH415/416 based platforms like b2000, which has
1214 default UART wired up to ASC2.
1218 config DEBUG_STIH41X_SBC_ASC1
1219 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1222 Say Y here if you want kernel low-level debugging support
1223 on STiH415/416 based platforms like b2020. which has
1224 default UART wired up to SBC ASC1.
1228 config DEBUG_STIH418_SBC_ASC0
1229 bool "Use StiH418 SBC ASC0 UART for low-level debug"
1232 Say Y here if you want kernel low-level debugging support
1233 on STiH418 based platforms which has default UART wired
1238 config STM32F4_DEBUG_UART
1239 bool "Use STM32F4 UART for low-level debug"
1240 depends on MACH_STM32F429 || MACH_STM32F469
1241 select DEBUG_STM32_UART
1243 Say Y here if you want kernel low-level debugging support
1244 on STM32F4 based platforms, which default UART is wired on
1245 USART1, but another UART instance can be selected by modifying
1246 CONFIG_DEBUG_UART_PHYS.
1250 config STM32F7_DEBUG_UART
1251 bool "Use STM32F7 UART for low-level debug"
1252 depends on MACH_STM32F746 || MACH_STM32F769
1253 select DEBUG_STM32_UART
1255 Say Y here if you want kernel low-level debugging support
1256 on STM32F7 based platforms, which default UART is wired on
1257 USART1, but another UART instance can be selected by modifying
1258 CONFIG_DEBUG_UART_PHYS.
1262 config STM32H7_DEBUG_UART
1263 bool "Use STM32H7 UART for low-level debug"
1264 depends on MACH_STM32H743
1265 select DEBUG_STM32_UART
1267 Say Y here if you want kernel low-level debugging support
1268 on STM32H7 based platforms, which default UART is wired on
1269 USART1, but another UART instance can be selected by modifying
1270 CONFIG_DEBUG_UART_PHYS.
1274 config STM32MP1_DEBUG_UART
1275 bool "Use STM32MP1 UART for low-level debug"
1276 depends on MACH_STM32MP157
1277 select DEBUG_STM32_UART
1279 Say Y here if you want kernel low-level debugging support
1280 on STM32MP1 based platforms, wich default UART is wired on
1281 UART4, but another UART instance can be selected by modifying
1282 CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
1286 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1287 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1288 depends on ARCH_TEGRA
1289 select DEBUG_TEGRA_UART
1291 Automatically determines which UART to use for low-level
1292 debug based on the ODMDATA value. This value is part of
1293 the BCT, and is written to the boot memory device using
1294 nvflash, or other flashing tool. When bits 19:18 are 3,
1295 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1298 config TEGRA_DEBUG_UARTA
1299 bool "Kernel low-level debugging messages via Tegra UART A"
1300 depends on ARCH_TEGRA
1301 select DEBUG_TEGRA_UART
1303 Say Y here if you want kernel low-level debugging support
1304 on Tegra based platforms.
1306 config TEGRA_DEBUG_UARTB
1307 bool "Kernel low-level debugging messages via Tegra UART B"
1308 depends on ARCH_TEGRA
1309 select DEBUG_TEGRA_UART
1311 Say Y here if you want kernel low-level debugging support
1312 on Tegra based platforms.
1314 config TEGRA_DEBUG_UARTC
1315 bool "Kernel low-level debugging messages via Tegra UART C"
1316 depends on ARCH_TEGRA
1317 select DEBUG_TEGRA_UART
1319 Say Y here if you want kernel low-level debugging support
1320 on Tegra based platforms.
1322 config TEGRA_DEBUG_UARTD
1323 bool "Kernel low-level debugging messages via Tegra UART D"
1324 depends on ARCH_TEGRA
1325 select DEBUG_TEGRA_UART
1327 Say Y here if you want kernel low-level debugging support
1328 on Tegra based platforms.
1330 config TEGRA_DEBUG_UARTE
1331 bool "Kernel low-level debugging messages via Tegra UART E"
1332 depends on ARCH_TEGRA
1333 select DEBUG_TEGRA_UART
1335 Say Y here if you want kernel low-level debugging support
1336 on Tegra based platforms.
1338 config DEBUG_UX500_UART
1339 depends on ARCH_U8500
1340 bool "Use Ux500 UART for low-level debug"
1342 Say Y here if you want kernel low-level debugging support
1343 on Ux500 based platforms.
1345 config DEBUG_VERSATILE
1346 bool "Kernel low-level debugging messages via ARM Versatile UART"
1347 depends on ARCH_VERSATILE
1348 select DEBUG_UART_PL01X
1350 Say Y here if you want kernel low-level debugging support
1351 on ARM Versatile platforms.
1353 config DEBUG_VEXPRESS_UART0_DETECT
1354 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1355 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1357 This option enables a simple heuristic which tries to determine
1358 the motherboard's memory map variant (original or RS1) and then
1359 choose the relevant UART0 base address.
1361 Note that this will only work with standard A-class core tiles,
1362 and may fail with non-standard SMM or custom software models.
1364 config DEBUG_VEXPRESS_UART0_CA9
1365 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1366 depends on ARCH_VEXPRESS
1367 select DEBUG_UART_PL01X
1369 This option selects UART0 at 0x10009000. Except for custom models,
1370 this applies only to the V2P-CA9 tile.
1372 config DEBUG_VEXPRESS_UART0_RS1
1373 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1374 depends on ARCH_VEXPRESS
1375 select DEBUG_UART_PL01X
1377 This option selects UART0 at 0x1c090000. This applies to most
1378 of the tiles using the RS1 memory map, including all new A-class
1379 core tiles, FPGA-based SMMs and software models.
1381 config DEBUG_VEXPRESS_UART0_CRX
1382 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1383 depends on ARCH_VEXPRESS && !MMU
1384 select DEBUG_UART_PL01X
1386 This option selects UART0 at 0xb0090000. This is appropriate for
1387 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1389 config DEBUG_VF_UART
1391 depends on SOC_VF610
1393 Say Y here if you want kernel low-level debugging support
1394 on Vybrid based platforms.
1396 config DEBUG_VT8500_UART0
1397 bool "Use UART0 on VIA/Wondermedia SoCs"
1398 depends on ARCH_VT8500
1400 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1401 devices, including VT8500, WM8505, WM8650 and WM8850.
1403 config DEBUG_ZYNQ_UART0
1404 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1405 depends on ARCH_ZYNQ
1407 Say Y here if you want the debug print routines to direct
1408 their output to UART0 on the Zynq platform.
1410 config DEBUG_ZYNQ_UART1
1411 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1412 depends on ARCH_ZYNQ
1414 Say Y here if you want the debug print routines to direct
1415 their output to UART1 on the Zynq platform.
1417 If you have a ZC702 board and want early boot messages to
1418 appear on the USB serial adaptor, select this option.
1421 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1423 Say Y here if you want the debug print routines to direct
1424 their output to the EmbeddedICE macrocell's DCC channel using
1425 co-processor 14. This is known to work on the ARM9 style ICE
1426 channel and on the XScale with the PEEDI.
1428 Note that the system will appear to hang during boot if there
1429 is nothing connected to read from the DCC.
1431 config DEBUG_SEMIHOSTING
1432 bool "Kernel low-level debug output via semihosting I/O"
1434 Semihosting enables code running on an ARM target to use
1435 the I/O facilities on a host debugger/emulator through a
1436 simple SVC call. The host debugger or emulator must have
1437 semihosting enabled for the special svc call to be trapped
1438 otherwise the kernel will crash.
1440 This is known to work with OpenOCD, as well as
1441 ARM's Fast Models, or any other controlling environment
1442 that implements semihosting.
1444 For more details about semihosting, please see
1445 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1447 config DEBUG_LL_UART_8250
1448 bool "Kernel low-level debugging via 8250 UART"
1450 Say Y here if you wish the debug print routes to direct
1451 their output to an 8250 UART. You can use this option
1452 to provide the parameters for the 8250 UART rather than
1453 selecting one of the platform specific options above if
1454 you know the parameters for the port.
1456 This option is preferred over the platform specific
1457 options; the platform specific options are deprecated
1458 and will be soon removed.
1460 config DEBUG_LL_UART_PL01X
1461 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1463 Say Y here if you wish the debug print routes to direct
1464 their output to a PL01x Primecell UART. You can use
1465 this option to provide the parameters for the UART
1466 rather than selecting one of the platform specific
1467 options above if you know the parameters for the port.
1469 This option is preferred over the platform specific
1470 options; the platform specific options are deprecated
1471 and will be soon removed.
1475 config DEBUG_AT91_UART
1477 depends on ARCH_AT91
1479 config DEBUG_EXYNOS_UART
1482 config DEBUG_S3C2410_UART
1484 select DEBUG_S3C24XX_UART
1486 config DEBUG_S3C24XX_UART
1489 config DEBUG_S3C64XX_UART
1492 config DEBUG_S5PV210_UART
1495 config DEBUG_S3C_UART
1496 depends on DEBUG_S3C2410_UART || DEBUG_S3C24XX_UART || \
1497 DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \
1500 default "0" if DEBUG_S3C_UART0
1501 default "1" if DEBUG_S3C_UART1
1502 default "2" if DEBUG_S3C_UART2
1503 default "3" if DEBUG_S3C_UART3
1505 config DEBUG_OMAP2PLUS_UART
1507 depends on ARCH_OMAP2PLUS
1509 config DEBUG_IMX_UART_PORT
1510 int "i.MX Debug UART Port Selection"
1511 depends on DEBUG_IMX1_UART || \
1512 DEBUG_IMX25_UART || \
1513 DEBUG_IMX27_UART || \
1514 DEBUG_IMX31_UART || \
1515 DEBUG_IMX35_UART || \
1516 DEBUG_IMX50_UART || \
1517 DEBUG_IMX51_UART || \
1518 DEBUG_IMX53_UART || \
1519 DEBUG_IMX6Q_UART || \
1520 DEBUG_IMX6SL_UART || \
1521 DEBUG_IMX6SX_UART || \
1522 DEBUG_IMX6UL_UART || \
1526 Choose UART port on which kernel low-level debug messages
1529 config DEBUG_VF_UART_PORT
1530 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1533 depends on SOC_VF610
1535 Choose UART port on which kernel low-level debug messages
1538 config DEBUG_TEGRA_UART
1540 depends on ARCH_TEGRA
1542 config DEBUG_STM32_UART
1544 depends on ARCH_STM32
1546 config DEBUG_UART_FLOW_CONTROL
1547 bool "Enable flow control (CTS) for the debug UART"
1549 default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1551 Some UART ports are connected to terminals that will use modem
1552 control signals to indicate whether they are ready to receive text.
1553 In practice this means that the terminal is asserting the special
1554 control signal CTS (Clear To Send). If your debug UART supports
1555 this and your debug terminal will require it, enable this option.
1557 config DEBUG_LL_INCLUDE
1559 default "debug/sa1100.S" if DEBUG_SA1100
1560 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1561 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1562 default "debug/at91.S" if DEBUG_AT91_UART
1563 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1564 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1565 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1566 default "debug/meson.S" if DEBUG_MESON_UARTAO
1567 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1568 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1569 default "debug/icedcc.S" if DEBUG_ICEDCC
1570 default "debug/imx.S" if DEBUG_IMX1_UART || \
1571 DEBUG_IMX25_UART || \
1572 DEBUG_IMX27_UART || \
1573 DEBUG_IMX31_UART || \
1574 DEBUG_IMX35_UART || \
1575 DEBUG_IMX50_UART || \
1576 DEBUG_IMX51_UART || \
1577 DEBUG_IMX53_UART || \
1578 DEBUG_IMX6Q_UART || \
1579 DEBUG_IMX6SL_UART || \
1580 DEBUG_IMX6SX_UART || \
1581 DEBUG_IMX6UL_UART || \
1583 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1584 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1585 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1586 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1587 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1588 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1589 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1590 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1591 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1592 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1593 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1594 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1595 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1596 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1597 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1598 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1599 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1600 default "debug/sti.S" if DEBUG_STIH41X_ASC2
1601 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1
1602 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0
1603 default "debug/stm32.S" if DEBUG_STM32_UART
1604 default "debug/tegra.S" if DEBUG_TEGRA_UART
1605 default "debug/ux500.S" if DEBUG_UX500_UART
1606 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1607 default "debug/vf.S" if DEBUG_VF_UART
1608 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1609 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1610 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1611 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1612 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1613 default "mach/debug-macro.S"
1615 # Compatibility options for PL01x
1616 config DEBUG_UART_PL01X
1619 # Compatibility options for 8250
1620 config DEBUG_UART_8250
1621 def_bool ARCH_IOP32X || ARCH_IXP4XX || ARCH_RPC
1623 config DEBUG_UART_PHYS
1624 hex "Physical base address of debug UART"
1625 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1626 default 0x01c28000 if DEBUG_SUNXI_UART0
1627 default 0x01c28400 if DEBUG_SUNXI_UART1
1628 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1629 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1630 default 0x01f02800 if DEBUG_SUNXI_R_UART
1631 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1632 default 0x02531000 if DEBUG_KEYSTONE_UART1
1633 default 0x03010fe0 if ARCH_RPC
1634 default 0x07000000 if DEBUG_SUN9I_UART0
1635 default 0x09530000 if DEBUG_STIH418_SBC_ASC0
1636 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1637 DEBUG_VEXPRESS_UART0_CA9
1638 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1639 default 0x10124000 if DEBUG_RK3X_UART0
1640 default 0x10126000 if DEBUG_RK3X_UART1
1641 default 0x101f1000 if DEBUG_VERSATILE
1642 default 0x101fb000 if DEBUG_NOMADIK_UART
1643 default 0x10210000 if DEBUG_RV1108_UART2
1644 default 0x10220000 if DEBUG_RV1108_UART1
1645 default 0x10230000 if DEBUG_RV1108_UART0
1646 default 0x11002000 if DEBUG_MT8127_UART0
1647 default 0x11006000 if DEBUG_MT6589_UART0
1648 default 0x11009000 if DEBUG_MT8135_UART3
1649 default 0x16000000 if DEBUG_INTEGRATOR
1650 default 0x1600d000 if DEBUG_SD5203_UART
1651 default 0x18000300 if DEBUG_BCM_5301X
1652 default 0x18000400 if DEBUG_BCM_HR2
1653 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1654 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1655 default 0x1f221000 if DEBUG_MSTARV7_PMUART
1656 default 0x20001000 if DEBUG_HIP01_UART
1657 default 0x20060000 if DEBUG_RK29_UART0
1658 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1659 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1660 default 0x20201000 if DEBUG_BCM2835
1661 default 0x3e000000 if DEBUG_BCM_KONA_UART
1662 default 0x3f201000 if DEBUG_BCM2836
1663 default 0x40010000 if STM32MP1_DEBUG_UART
1664 default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \
1666 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1667 default 0x40081000 if DEBUG_LPC18XX_UART0
1668 default 0x40090000 if DEBUG_LPC32XX
1669 default 0x40100000 if DEBUG_PXA_UART1
1670 default 0x42000000 if DEBUG_GEMINI
1671 default 0x44e09000 if DEBUG_AM33XXUART1
1672 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1673 default 0x48022000 if DEBUG_TI81XXUART2
1674 default 0x48024000 if DEBUG_TI81XXUART3
1675 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1676 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1677 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1678 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1679 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1680 default 0x49020000 if DEBUG_OMAP3UART3
1681 default 0x49042000 if DEBUG_OMAP3UART4
1682 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1683 DEBUG_S3C2410_UART0)
1684 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1685 DEBUG_S3C2410_UART1)
1686 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1687 DEBUG_S3C2410_UART2)
1688 default 0x78000000 if DEBUG_CNS3XXX
1689 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1690 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1691 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1692 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1693 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1694 default 0x80010000 if DEBUG_ASM9260_UART
1695 default 0x80070000 if DEBUG_IMX23_UART
1696 default 0x80074000 if DEBUG_IMX28_UART
1697 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1698 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1699 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1700 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1701 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1702 default 0xd0000000 if DEBUG_SPEAR3XX
1703 default 0xd0012000 if DEBUG_MVEBU_UART0
1704 default 0xc81004c0 if DEBUG_MESON_UARTAO
1705 default 0xd4017000 if DEBUG_MMP_UART2
1706 default 0xd4018000 if DEBUG_MMP_UART3
1707 default 0xe0000000 if DEBUG_SPEAR13XX
1708 default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM
1709 default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1710 default 0xe4007000 if DEBUG_HIP04_UART
1711 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1712 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1713 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2
1714 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1715 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1716 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1717 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1718 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1719 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
1720 default 0xe8009000 if DEBUG_R7S9210_SCIF4
1721 default 0xf0000000 if DEBUG_DIGICOLOR_UA0
1722 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1723 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1724 default 0xf7fc9000 if DEBUG_BERLIN_UART
1725 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1726 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1727 default 0xf991e000 if DEBUG_QCOM_UARTDM
1728 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1729 default 0xfcb00000 if DEBUG_HI3620_UART
1730 default 0xfd883000 if DEBUG_ALPINE_UART0
1731 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1
1732 default 0xfe800000 if ARCH_IOP32X
1733 default 0xfed32000 if DEBUG_STIH41X_ASC2
1734 default 0xff690000 if DEBUG_RK32_UART2
1735 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1736 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1737 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1738 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1739 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1740 default 0xfff36000 if DEBUG_HIGHBANK_UART
1741 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1742 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1743 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1744 default 0xfffe8600 if DEBUG_BCM63XX_UART
1745 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1746 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1747 depends on ARCH_EP93XX || \
1748 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1749 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1750 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1751 DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
1752 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1753 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1754 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1755 DEBUG_RCAR_GEN2_SCIFA2 || \
1756 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1757 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1758 DEBUG_S3C64XX_UART || \
1759 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1760 DEBUG_DIGICOLOR_UA0 || \
1761 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1762 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1763 DEBUG_STIH418_SBC_ASC0
1765 config DEBUG_UART_VIRT
1766 hex "Virtual base address of debug UART"
1767 default 0xc881f000 if DEBUG_RV1108_UART2
1768 default 0xc8821000 if DEBUG_RV1108_UART1
1769 default 0xc8912000 if DEBUG_RV1108_UART0
1770 default 0xe0010fe0 if ARCH_RPC
1771 default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
1772 default 0xf0010000 if DEBUG_ASM9260_UART
1773 default 0xf0100000 if DEBUG_DIGICOLOR_UA0
1774 default 0xf01fb000 if DEBUG_NOMADIK_UART
1775 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1776 default 0xf0221000 if DEBUG_MSTARV7_PMUART
1777 default 0xf1000300 if DEBUG_BCM_5301X
1778 default 0xf1000400 if DEBUG_BCM_HR2
1779 default 0xf1002000 if DEBUG_MT8127_UART0
1780 default 0xf1006000 if DEBUG_MT6589_UART0
1781 default 0xf1009000 if DEBUG_MT8135_UART3
1782 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1783 default 0xf11f1000 if DEBUG_VERSATILE
1784 default 0xf1600000 if DEBUG_INTEGRATOR
1785 default 0xf1c28000 if DEBUG_SUNXI_UART0
1786 default 0xf1c28400 if DEBUG_SUNXI_UART1
1787 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1788 default 0xf31004c0 if DEBUG_MESON_UARTAO
1789 default 0xf4090000 if DEBUG_LPC32XX
1790 default 0xf4200000 if DEBUG_GEMINI
1791 default 0xf6200000 if DEBUG_PXA_UART1
1792 default 0xf7000000 if DEBUG_SUN9I_UART0
1793 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1794 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1795 DEBUG_S3C2410_UART0)
1796 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1797 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1798 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1799 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1800 DEBUG_S3C2410_UART1)
1801 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1802 DEBUG_S3C2410_UART2)
1803 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1804 default 0xf7fc9000 if DEBUG_BERLIN_UART
1805 default 0xf8007000 if DEBUG_HIP04_UART
1806 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1807 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1808 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1809 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1810 default 0xf9530000 if DEBUG_STIH418_SBC_ASC0
1811 default 0xf9e09000 if DEBUG_AM33XXUART1
1812 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1813 default 0xfa022000 if DEBUG_TI81XXUART2
1814 default 0xfa024000 if DEBUG_TI81XXUART3
1815 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1816 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1817 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1818 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1819 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1820 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1821 default 0xfb002000 if DEBUG_CNS3XXX
1822 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1823 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1824 default 0xfb020000 if DEBUG_OMAP3UART3
1825 default 0xfb042000 if DEBUG_OMAP3UART4
1826 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1827 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1828 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1829 default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM
1830 default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
1831 default 0xfd883000 if DEBUG_ALPINE_UART0
1832 default 0xfdd32000 if DEBUG_STIH41X_ASC2
1833 default 0xfe010000 if STM32MP1_DEBUG_UART
1834 default 0xfe017000 if DEBUG_MMP_UART2
1835 default 0xfe018000 if DEBUG_MMP_UART3
1836 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1837 default 0xfe300000 if DEBUG_BCM_KONA_UART
1838 default 0xfe800000 if ARCH_IOP32X
1839 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1840 default 0xfeb24000 if DEBUG_RK3X_UART0
1841 default 0xfeb26000 if DEBUG_RK3X_UART1
1842 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1843 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1844 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1845 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1846 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1847 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1848 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1849 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1850 default 0xfec90000 if DEBUG_RK32_UART2
1851 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1852 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART
1853 default 0xfed60000 if DEBUG_RK29_UART0
1854 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1855 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1856 default 0xfedc0000 if DEBUG_EP93XX
1857 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1858 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1859 default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1860 default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1861 default 0xfef36000 if DEBUG_HIGHBANK_UART
1862 default 0xff0b0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1863 default 0xff0b0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1864 default 0xff0b9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1865 default 0xffd01000 if DEBUG_HIP01_UART
1866 default DEBUG_UART_PHYS if !MMU
1867 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1868 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1869 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1870 DEBUG_S3C64XX_UART || \
1871 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1872 DEBUG_DIGICOLOR_UA0 || \
1873 DEBUG_AT91_UART || DEBUG_STM32_UART || \
1874 DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \
1875 DEBUG_STIH418_SBC_ASC0
1877 config DEBUG_UART_8250_SHIFT
1878 int "Register offset shift for the 8250 debug UART"
1879 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1880 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1881 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1883 default 3 if DEBUG_MSTARV7_PMUART
1886 config DEBUG_UART_8250_WORD
1887 bool "Use 32-bit accesses for 8250 UART"
1888 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1889 depends on DEBUG_UART_8250_SHIFT >= 2
1890 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1891 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1892 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1893 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1894 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1895 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1897 config DEBUG_UART_8250_PALMCHIP
1898 bool "8250 UART is Palmchip BK-310x"
1899 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1901 Palmchip provides a UART implementation compatible with 16550
1902 except for having a different register layout. Say Y here if
1903 the debug UART is of this type.
1905 config DEBUG_UNCOMPRESS
1906 bool "Enable decompressor debugging via DEBUG_LL output"
1907 depends on !ARCH_MULTIPLATFORM
1908 depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
1909 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1910 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1911 !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
1913 This option influences the normal decompressor output for
1914 multiplatform kernels. Normally, multiplatform kernels disable
1915 decompressor output because it is not possible to know where to
1916 send the decompressor output.
1918 When this option is set, the selected DEBUG_LL output method
1919 will be re-used for normal decompressor output on multiplatform
1923 config UNCOMPRESS_INCLUDE
1925 default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
1926 default "debug/uncompress.h"
1932 Say Y here if you want to have an early console using the
1933 kernel low-level debugging functions. Add earlyprintk to your
1934 kernel parameters to enable this console.
1936 config ARM_KPROBES_TEST
1937 tristate "Kprobes test module"
1938 depends on KPROBES && MODULES
1940 Perform tests of kprobes API and instruction set simulation.
1942 config PID_IN_CONTEXTIDR
1943 bool "Write the current PID to the CONTEXTIDR register"
1944 depends on CPU_COPY_V6
1946 Enabling this option causes the kernel to write the current PID to
1947 the PROCID field of the CONTEXTIDR register, at the expense of some
1948 additional instructions during context switch. Say Y here only if you
1949 are planning to use hardware trace tools with this kernel.
1951 source "drivers/hwtracing/coresight/Kconfig"