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 && !CC_IS_CLANG
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.
87 depends on FUNCTION_TRACER && FRAME_POINTER
91 bool "Verbose user fault messages"
93 When a user program crashes due to an exception, the kernel can
94 print a brief message explaining what the problem was. This is
95 sometimes helpful for debugging but serves no purpose on a
96 production system. Most people should say N here.
98 In addition, you need to pass user_debug=N on the kernel command
99 line to enable this feature. N consists of the sum of:
101 1 - undefined instruction events
103 4 - invalid data aborts
107 # These options are only for real kernel hackers who want to get their hands dirty.
109 bool "Kernel low-level debugging functions (read help!)"
110 depends on DEBUG_KERNEL
112 Say Y here to include definitions of printascii, printch, printhex
113 in the kernel. This is helpful if you are debugging code that
114 executes before the console is initialized.
116 Note that selecting this option will limit the kernel to a single
117 UART definition, as specified below. Attempting to boot the kernel
118 image on a different platform *will not work*, so this option should
119 not be enabled for kernels that are intended to be portable.
122 prompt "Kernel low-level debugging port"
125 config DEBUG_ALPINE_UART0
126 bool "Kernel low-level debugging messages via Alpine UART0"
127 depends on ARCH_ALPINE
128 select DEBUG_UART_8250
130 Say Y here if you want kernel low-level debugging support
131 on Alpine based platforms.
133 config DEBUG_ASM9260_UART
134 bool "Kernel low-level debugging via asm9260 UART"
135 depends on MACH_ASM9260
137 Say Y here if you want the debug print routines to direct
138 their output to an UART or USART port on asm9260 based
141 DEBUG_UART_PHYS | DEBUG_UART_VIRT
143 0x80000000 | 0xf0000000 | UART0
144 0x80004000 | 0xf0004000 | UART1
145 0x80008000 | 0xf0008000 | UART2
146 0x8000c000 | 0xf000c000 | UART3
147 0x80010000 | 0xf0010000 | UART4
148 0x80014000 | 0xf0014000 | UART5
149 0x80018000 | 0xf0018000 | UART6
150 0x8001c000 | 0xf001c000 | UART7
151 0x80020000 | 0xf0020000 | UART8
152 0x80024000 | 0xf0024000 | UART9
154 config DEBUG_AT91_RM9200_DBGU
155 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
156 select DEBUG_AT91_UART
157 depends on SOC_AT91RM9200 || SOC_AT91SAM9
159 Say Y here if you want kernel low-level debugging support
161 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
162 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
164 config DEBUG_AT91_SAM9263_DBGU
165 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
166 select DEBUG_AT91_UART
167 depends on SOC_AT91SAM9 || SOC_SAMA5D3
169 Say Y here if you want kernel low-level debugging support
171 at91sam9263, at91sam9g45, at91sam9m10,
174 config DEBUG_AT91_SAMA5D2_UART1
175 bool "Kernel low-level debugging on SAMA5D2 UART1"
176 select DEBUG_AT91_UART
177 depends on SOC_SAMA5D2
179 Say Y here if you want kernel low-level debugging support
180 on the UART1 port of sama5d2.
182 config DEBUG_AT91_SAMA5D4_USART3
183 bool "Kernel low-level debugging on SAMA5D4 USART3"
184 select DEBUG_AT91_UART
185 depends on SOC_SAMA5D4
187 Say Y here if you want kernel low-level debugging support
188 on the USART3 port of sama5d4.
190 config DEBUG_AT91_SAMV7_USART1
191 bool "Kernel low-level debugging via SAMV7 USART1"
192 select DEBUG_AT91_UART
195 Say Y here if you want the debug print routines to direct
196 their output to the USART1 port on SAMV7 based
200 bool "Kernel low-level debugging on BCM2835 PL011 UART"
201 depends on ARCH_BCM2835 && ARCH_MULTI_V6
202 select DEBUG_UART_PL01X
205 bool "Kernel low-level debugging on BCM2836 PL011 UART"
206 depends on ARCH_BCM2835 && ARCH_MULTI_V7
207 select DEBUG_UART_PL01X
209 config DEBUG_BCM_5301X
210 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
211 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
212 select DEBUG_UART_8250
215 bool "Kernel low-level debugging on Hurricane 2 UART2"
216 depends on ARCH_BCM_HR2
217 select DEBUG_UART_8250
219 config DEBUG_BCM_IPROC_UART3
220 bool "Kernel low-level debugging on BCM IPROC UART3"
221 depends on ARCH_BCM_CYGNUS
222 select DEBUG_UART_8250
224 Say Y here if you want the debug print routines to direct
225 their output to the third serial port on these devices.
227 config DEBUG_BCM_KONA_UART
228 bool "Kernel low-level debugging messages via BCM KONA UART"
229 depends on ARCH_BCM_MOBILE
230 select DEBUG_UART_8250
232 Say Y here if you want kernel low-level debugging support
233 on Broadcom SoC platforms.
234 This low level debug works for Broadcom
235 mobile SoCs in the Kona family of chips (e.g. bcm28155,
238 config DEBUG_BCM63XX_UART
239 bool "Kernel low-level debugging on BCM63XX UART"
240 depends on ARCH_BCM_63XX
242 config DEBUG_BERLIN_UART
243 bool "Marvell Berlin SoC Debug UART"
244 depends on ARCH_BERLIN
245 select DEBUG_UART_8250
247 Say Y here if you want kernel low-level debugging support
248 on Marvell Berlin SoC based platforms.
250 config DEBUG_BRCMSTB_UART
251 bool "Use BRCMSTB UART for low-level debug"
252 depends on ARCH_BRCMSTB
254 Say Y here if you want the debug print routines to direct
255 their output to the first serial port on these devices. The
256 UART physical and virtual address is automatically provided
257 based on the chip identification register value.
259 If you have a Broadcom STB chip and would like early print
260 messages to appear over the UART, select this option.
262 config DEBUG_CLPS711X_UART1
263 bool "Kernel low-level debugging messages via UART1"
264 depends on ARCH_CLPS711X
266 Say Y here if you want the debug print routines to direct
267 their output to the first serial port on these devices.
269 config DEBUG_CLPS711X_UART2
270 bool "Kernel low-level debugging messages via UART2"
271 depends on ARCH_CLPS711X
273 Say Y here if you want the debug print routines to direct
274 their output to the second serial port on these devices.
277 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
278 depends on ARCH_CNS3XXX
279 select DEBUG_UART_8250
281 Say Y here if you want the debug print routines to direct
282 their output to the CNS3xxx UART0.
284 config DEBUG_DAVINCI_DA8XX_UART1
285 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
286 depends on ARCH_DAVINCI_DA8XX
287 select DEBUG_UART_8250
289 Say Y here if you want the debug print routines to direct
290 their output to UART1 serial port on DaVinci DA8XX devices.
292 config DEBUG_DAVINCI_DA8XX_UART2
293 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
294 depends on ARCH_DAVINCI_DA8XX
295 select DEBUG_UART_8250
297 Say Y here if you want the debug print routines to direct
298 their output to UART2 serial port on DaVinci DA8XX devices.
300 config DEBUG_DAVINCI_DMx_UART0
301 bool "Kernel low-level debugging on DaVinci DMx using UART0"
302 depends on ARCH_DAVINCI_DMx
303 select DEBUG_UART_8250
305 Say Y here if you want the debug print routines to direct
306 their output to UART0 serial port on DaVinci DMx devices.
308 config DEBUG_DC21285_PORT
309 bool "Kernel low-level debugging messages via footbridge serial port"
310 depends on FOOTBRIDGE
312 Say Y here if you want the debug print routines to direct
313 their output to the serial port in the DC21285 (Footbridge).
315 config DEBUG_DIGICOLOR_UA0
316 bool "Kernel low-level debugging messages via Digicolor UA0"
317 depends on ARCH_DIGICOLOR
319 Say Y here if you want the debug print routines to direct
320 their output to the UA0 serial port in the CX92755.
323 bool "Kernel low-level debugging messages via ep93xx UART"
324 depends on ARCH_EP93XX
325 select DEBUG_UART_PL01X
327 Say Y here if you want kernel low-level debugging support
328 on Cirrus Logic EP93xx based platforms.
330 config DEBUG_FOOTBRIDGE_COM1
331 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
332 depends on FOOTBRIDGE
333 select DEBUG_UART_8250
335 Say Y here if you want the debug print routines to direct
336 their output to the 8250 at PCI COM1.
339 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
340 depends on ARCH_GEMINI
341 select DEBUG_UART_8250
343 Say Y here if you want kernel low-level debugging support
344 on Cortina Gemini based platforms.
346 config DEBUG_HI3620_UART
347 bool "Hisilicon HI3620 Debug UART"
348 depends on ARCH_HI3xxx
349 select DEBUG_UART_PL01X
351 Say Y here if you want kernel low-level debugging support
354 config DEBUG_HIGHBANK_UART
355 bool "Kernel low-level debugging messages via Highbank UART"
356 depends on ARCH_HIGHBANK
357 select DEBUG_UART_PL01X
359 Say Y here if you want the debug print routines to direct
360 their output to the UART on Highbank based devices.
362 config DEBUG_HIP01_UART
363 bool "Hisilicon Hip01 Debug UART"
364 depends on ARCH_HIP01
365 select DEBUG_UART_8250
367 Say Y here if you want kernel low-level debugging support
370 config DEBUG_HIP04_UART
371 bool "Hisilicon HiP04 Debug UART"
372 depends on ARCH_HIP04
373 select DEBUG_UART_8250
375 Say Y here if you want kernel low-level debugging support
378 config DEBUG_HIX5HD2_UART
379 bool "Hisilicon Hix5hd2 Debug UART"
380 depends on ARCH_HIX5HD2
381 select DEBUG_UART_PL01X
383 Say Y here if you want kernel low-level debugging support
386 config DEBUG_IMX1_UART
387 bool "i.MX1 Debug UART"
390 Say Y here if you want kernel low-level debugging support
393 config DEBUG_IMX23_UART
394 bool "i.MX23 Debug UART"
396 select DEBUG_UART_PL01X
398 Say Y here if you want kernel low-level debugging support
401 config DEBUG_IMX25_UART
402 bool "i.MX25 Debug UART"
405 Say Y here if you want kernel low-level debugging support
408 config DEBUG_IMX21_IMX27_UART
409 bool "i.MX21 and i.MX27 Debug UART"
410 depends on SOC_IMX21 || SOC_IMX27
412 Say Y here if you want kernel low-level debugging support
415 config DEBUG_IMX28_UART
416 bool "i.MX28 Debug UART"
418 select DEBUG_UART_PL01X
420 Say Y here if you want kernel low-level debugging support
423 config DEBUG_IMX31_UART
424 bool "i.MX31 Debug UART"
427 Say Y here if you want kernel low-level debugging support
430 config DEBUG_IMX35_UART
431 bool "i.MX35 Debug UART"
434 Say Y here if you want kernel low-level debugging support
437 config DEBUG_IMX50_UART
438 bool "i.MX50 Debug UART"
441 Say Y here if you want kernel low-level debugging support
444 config DEBUG_IMX51_UART
445 bool "i.MX51 Debug UART"
448 Say Y here if you want kernel low-level debugging support
451 config DEBUG_IMX53_UART
452 bool "i.MX53 Debug UART"
455 Say Y here if you want kernel low-level debugging support
458 config DEBUG_IMX6Q_UART
459 bool "i.MX6Q/DL Debug UART"
462 Say Y here if you want kernel low-level debugging support
465 config DEBUG_IMX6SL_UART
466 bool "i.MX6SL Debug UART"
467 depends on SOC_IMX6SL
469 Say Y here if you want kernel low-level debugging support
472 config DEBUG_IMX6SX_UART
473 bool "i.MX6SX Debug UART"
474 depends on SOC_IMX6SX
476 Say Y here if you want kernel low-level debugging support
479 config DEBUG_IMX6UL_UART
480 bool "i.MX6UL Debug UART"
481 depends on SOC_IMX6UL
483 Say Y here if you want kernel low-level debugging support
486 config DEBUG_IMX7D_UART
487 bool "i.MX7D Debug UART"
490 Say Y here if you want kernel low-level debugging support
493 config DEBUG_INTEGRATOR
494 bool "Kernel low-level debugging messages via ARM Integrator UART"
495 depends on ARCH_INTEGRATOR
496 select DEBUG_UART_PL01X
498 Say Y here if you want kernel low-level debugging support
499 on ARM Integrator platforms.
501 config DEBUG_KEYSTONE_UART0
502 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
503 depends on ARCH_KEYSTONE
504 select DEBUG_UART_8250
506 Say Y here if you want the debug print routines to direct
507 their output to UART0 serial port on KEYSTONE2 devices.
509 config DEBUG_KEYSTONE_UART1
510 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
511 depends on ARCH_KEYSTONE
512 select DEBUG_UART_8250
514 Say Y here if you want the debug print routines to direct
515 their output to UART1 serial port on KEYSTONE2 devices.
517 config DEBUG_KS8695_UART
518 bool "KS8695 Debug UART"
519 depends on ARCH_KS8695
521 Say Y here if you want kernel low-level debugging support
524 config DEBUG_LPC18XX_UART0
525 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
526 depends on ARCH_LPC18XX
527 select DEBUG_UART_8250
529 Say Y here if you want kernel low-level debugging support
530 on NXP LPC18xx/43xx UART0.
533 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
534 depends on ARCH_LPC32XX
535 select DEBUG_UART_8250
537 Say Y here if you want kernel low-level debugging support
538 on NXP LPC32xx based platforms.
540 config DEBUG_MESON_UARTAO
541 bool "Kernel low-level debugging via Meson6 UARTAO"
542 depends on ARCH_MESON
544 Say Y here if you want kernel low-lever debugging support
545 on Amlogic Meson6 based platforms on the UARTAO.
547 config DEBUG_MMP_UART2
548 bool "Kernel low-level debugging message via MMP UART2"
550 select DEBUG_UART_8250
552 Say Y here if you want kernel low-level debugging support
555 config DEBUG_MMP_UART3
556 bool "Kernel low-level debugging message via MMP UART3"
558 select DEBUG_UART_8250
560 Say Y here if you want kernel low-level debugging support
563 config DEBUG_MVEBU_UART0
564 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
565 depends on ARCH_MVEBU
566 depends on ARCH_MVEBU && CPU_V7
567 select DEBUG_UART_8250
569 Say Y here if you want kernel low-level debugging support
570 on MVEBU based platforms on UART0.
572 This option should be used with the old bootloaders
573 that left the internal registers mapped at
574 0xd0000000. As of today, this is the case on
575 platforms such as the Globalscale Mirabox or the
576 Plathome OpenBlocks AX3, when using the original
579 This option will not work on older Marvell platforms
580 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
581 the "new bootloader" variant.
583 If the wrong DEBUG_MVEBU_UART* option is selected,
584 when u-boot hands over to the kernel, the system
585 silently crashes, with no serial output at all.
587 config DEBUG_MVEBU_UART0_ALTERNATE
588 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
589 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
590 select DEBUG_UART_8250
592 Say Y here if you want kernel low-level debugging support
593 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
594 Kirkwood, Dove, MV78xx0, Orion5x).
597 This option should be used with the new bootloaders
598 that remap the internal registers at 0xf1000000.
600 If the wrong DEBUG_MVEBU_UART* option is selected,
601 when u-boot hands over to the kernel, the system
602 silently crashes, with no serial output at all.
604 config DEBUG_MVEBU_UART1_ALTERNATE
605 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
606 depends on ARCH_MVEBU
607 select DEBUG_UART_8250
609 Say Y here if you want kernel low-level debugging support
610 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
611 Kirkwood, Dove, MV78xx0, Orion5x).
613 This option should be used with the new bootloaders
614 that remap the internal registers at 0xf1000000.
615 All of the older (pre Armada XP/370) platforms also use
616 this address, regardless of the boot loader version.
618 If the wrong DEBUG_MVEBU_UART* option is selected,
619 when u-boot hands over to the kernel, the system
620 silently crashes, with no serial output at all.
622 config DEBUG_MT6589_UART0
623 bool "Mediatek mt6589 UART0"
624 depends on ARCH_MEDIATEK
625 select DEBUG_UART_8250
627 Say Y here if you want kernel low-level debugging support
628 for Mediatek mt6589 based platforms on UART0.
630 config DEBUG_MT8127_UART0
631 bool "Mediatek mt8127/mt6592 UART0"
632 depends on ARCH_MEDIATEK
633 select DEBUG_UART_8250
635 Say Y here if you want kernel low-level debugging support
636 for Mediatek mt8127 based platforms on UART0.
638 config DEBUG_MT8135_UART3
639 bool "Mediatek mt8135 UART3"
640 depends on ARCH_MEDIATEK
641 select DEBUG_UART_8250
643 Say Y here if you want kernel low-level debugging support
644 for Mediatek mt8135 based platforms on UART3.
646 config DEBUG_NETX_UART
647 bool "Kernel low-level debugging messages via NetX UART"
650 Say Y here if you want kernel low-level debugging support
651 on Hilscher NetX based platforms.
653 config DEBUG_NOMADIK_UART
654 bool "Kernel low-level debugging messages via NOMADIK UART"
655 depends on ARCH_NOMADIK
656 select DEBUG_UART_PL01X
658 Say Y here if you want kernel low-level debugging support
659 on NOMADIK based platforms.
661 config DEBUG_NSPIRE_CLASSIC_UART
662 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
663 depends on ARCH_NSPIRE
664 select DEBUG_UART_8250
666 Say Y here if you want kernel low-level debugging support
667 on TI-NSPIRE classic models.
669 config DEBUG_NSPIRE_CX_UART
670 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
671 depends on ARCH_NSPIRE
672 select DEBUG_UART_PL01X
674 Say Y here if you want kernel low-level debugging support
675 on TI-NSPIRE CX models.
677 config DEBUG_OMAP1UART1
678 bool "Kernel low-level debugging via OMAP1 UART1"
679 depends on ARCH_OMAP1
680 select DEBUG_UART_8250
682 Say Y here if you want kernel low-level debugging support
683 on OMAP1 based platforms (except OMAP730) on the UART1.
685 config DEBUG_OMAP1UART2
686 bool "Kernel low-level debugging via OMAP1 UART2"
687 depends on ARCH_OMAP1
688 select DEBUG_UART_8250
690 Say Y here if you want kernel low-level debugging support
691 on OMAP1 based platforms (except OMAP730) on the UART2.
693 config DEBUG_OMAP1UART3
694 bool "Kernel low-level debugging via OMAP1 UART3"
695 depends on ARCH_OMAP1
696 select DEBUG_UART_8250
698 Say Y here if you want kernel low-level debugging support
699 on OMAP1 based platforms (except OMAP730) on the UART3.
701 config DEBUG_OMAP2UART1
702 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
703 depends on ARCH_OMAP2PLUS
704 select DEBUG_UART_8250
706 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
707 omap3 torpedo and 3530 lv som.
709 config DEBUG_OMAP2UART2
710 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
711 depends on ARCH_OMAP2PLUS
712 select DEBUG_UART_8250
714 config DEBUG_OMAP2UART3
715 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
716 depends on ARCH_OMAP2PLUS
717 select DEBUG_UART_8250
719 config DEBUG_OMAP3UART3
720 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
721 depends on ARCH_OMAP2PLUS
722 select DEBUG_UART_8250
724 This covers at least cm_t3x, beagle, crane, devkit8000,
725 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
728 config DEBUG_OMAP4UART3
729 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
730 depends on ARCH_OMAP2PLUS
731 select DEBUG_UART_8250
733 config DEBUG_OMAP3UART4
734 bool "Kernel low-level debugging messages via OMAP36XX UART4"
735 depends on ARCH_OMAP2PLUS
736 select DEBUG_UART_8250
738 config DEBUG_OMAP4UART4
739 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
740 depends on ARCH_OMAP2PLUS
741 select DEBUG_UART_8250
743 config DEBUG_OMAP7XXUART1
744 bool "Kernel low-level debugging via OMAP730 UART1"
745 depends on ARCH_OMAP730
746 select DEBUG_UART_8250
748 Say Y here if you want kernel low-level debugging support
749 on OMAP730 based platforms on the UART1.
751 config DEBUG_OMAP7XXUART2
752 bool "Kernel low-level debugging via OMAP730 UART2"
753 depends on ARCH_OMAP730
754 select DEBUG_UART_8250
756 Say Y here if you want kernel low-level debugging support
757 on OMAP730 based platforms on the UART2.
759 config DEBUG_OMAP7XXUART3
760 bool "Kernel low-level debugging via OMAP730 UART3"
761 depends on ARCH_OMAP730
762 select DEBUG_UART_8250
764 Say Y here if you want kernel low-level debugging support
765 on OMAP730 based platforms on the UART3.
767 config DEBUG_TI81XXUART1
768 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
769 depends on ARCH_OMAP2PLUS
770 select DEBUG_UART_8250
772 config DEBUG_TI81XXUART2
773 bool "Kernel low-level debugging messages via TI81XX UART2"
774 depends on ARCH_OMAP2PLUS
775 select DEBUG_UART_8250
777 config DEBUG_TI81XXUART3
778 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
779 depends on ARCH_OMAP2PLUS
780 select DEBUG_UART_8250
782 config DEBUG_AM33XXUART1
783 bool "Kernel low-level debugging messages via AM33XX UART1"
784 depends on ARCH_OMAP2PLUS
785 select DEBUG_UART_8250
787 config DEBUG_ZOOM_UART
788 bool "Kernel low-level debugging messages via Zoom2/3 UART"
789 depends on ARCH_OMAP2PLUS
790 select DEBUG_OMAP2PLUS_UART
792 config DEBUG_PICOXCELL_UART
793 depends on ARCH_PICOXCELL
794 bool "Use PicoXcell UART for low-level debug"
795 select DEBUG_UART_8250
797 Say Y here if you want kernel low-level debugging support
798 on PicoXcell based platforms.
800 config DEBUG_PXA_UART1
802 bool "Use PXA UART1 for low-level debug"
803 select DEBUG_UART_8250
805 Say Y here if you want kernel low-level debugging support
808 config DEBUG_QCOM_UARTDM
809 bool "Kernel low-level debugging messages via QCOM UARTDM"
812 Say Y here if you want the debug print routines to direct
813 their output to the serial port on Qualcomm devices.
815 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
816 APQ8064 0x16640000 0xf0040000
817 APQ8084 0xf995e000 0xfa75e000
818 IPQ4019 0x078af000 0xf78af000
819 MSM8X60 0x19c40000 0xf0040000
820 MSM8960 0x16440000 0xf0040000
821 MSM8974 0xf991e000 0xfa71e000
823 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
824 options based on your needs.
826 config DEBUG_REALVIEW_STD_PORT
827 bool "RealView Default UART"
828 depends on ARCH_REALVIEW
829 select DEBUG_UART_PL01X
831 Say Y here if you want the debug print routines to direct
832 their output to the serial port on RealView EB, PB11MP, PBA8
835 config DEBUG_REALVIEW_PB1176_PORT
836 bool "RealView PB1176 UART"
837 depends on MACH_REALVIEW_PB1176
838 select DEBUG_UART_PL01X
840 Say Y here if you want the debug print routines to direct
841 their output to the standard serial port on the RealView
844 config DEBUG_RV1108_UART0
845 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
846 depends on ARCH_ROCKCHIP
847 select DEBUG_UART_8250
849 Say Y here if you want kernel low-level debugging support
850 on Rockchip RV1108 based platforms.
852 config DEBUG_RV1108_UART1
853 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
854 depends on ARCH_ROCKCHIP
855 select DEBUG_UART_8250
857 Say Y here if you want kernel low-level debugging support
858 on Rockchip RV1108 based platforms.
860 config DEBUG_RV1108_UART2
861 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
862 depends on ARCH_ROCKCHIP
863 select DEBUG_UART_8250
865 Say Y here if you want kernel low-level debugging support
866 on Rockchip RV1108 based platforms.
868 config DEBUG_RK29_UART0
869 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
870 depends on ARCH_ROCKCHIP
871 select DEBUG_UART_8250
873 Say Y here if you want kernel low-level debugging support
874 on Rockchip based platforms.
876 config DEBUG_RK29_UART1
877 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
878 depends on ARCH_ROCKCHIP
879 select DEBUG_UART_8250
881 Say Y here if you want kernel low-level debugging support
882 on Rockchip based platforms.
884 config DEBUG_RK29_UART2
885 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
886 depends on ARCH_ROCKCHIP
887 select DEBUG_UART_8250
889 Say Y here if you want kernel low-level debugging support
890 on Rockchip based platforms.
892 config DEBUG_RK3X_UART0
893 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
894 depends on ARCH_ROCKCHIP
895 select DEBUG_UART_8250
897 Say Y here if you want kernel low-level debugging support
898 on Rockchip based platforms.
900 config DEBUG_RK3X_UART1
901 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
902 depends on ARCH_ROCKCHIP
903 select DEBUG_UART_8250
905 Say Y here if you want kernel low-level debugging support
906 on Rockchip based platforms.
908 config DEBUG_RK3X_UART2
909 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
910 depends on ARCH_ROCKCHIP
911 select DEBUG_UART_8250
913 Say Y here if you want kernel low-level debugging support
914 on Rockchip based platforms.
916 config DEBUG_RK3X_UART3
917 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
918 depends on ARCH_ROCKCHIP
919 select DEBUG_UART_8250
921 Say Y here if you want kernel low-level debugging support
922 on Rockchip based platforms.
924 config DEBUG_RK32_UART2
925 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
926 depends on ARCH_ROCKCHIP
927 select DEBUG_UART_8250
929 Say Y here if you want kernel low-level debugging support
930 on Rockchip RK32xx based platforms.
932 config DEBUG_R7S72100_SCIF2
933 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
934 depends on ARCH_R7S72100
936 Say Y here if you want kernel low-level debugging support
937 via SCIF2 on Renesas RZ/A1H (R7S72100).
939 config DEBUG_RCAR_GEN1_SCIF0
940 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
941 depends on ARCH_R8A7778
943 Say Y here if you want kernel low-level debugging support
944 via SCIF0 on Renesas R-Car M1A (R8A7778).
946 config DEBUG_RCAR_GEN1_SCIF2
947 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
948 depends on ARCH_R8A7779
950 Say Y here if you want kernel low-level debugging support
951 via SCIF2 on Renesas R-Car H1 (R8A7779).
953 config DEBUG_RCAR_GEN2_SCIF0
954 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
955 depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \
956 ARCH_R8A7792 || ARCH_R8A7793
958 Say Y here if you want kernel low-level debugging support
959 via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790),
960 M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
962 config DEBUG_RCAR_GEN2_SCIF1
963 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
964 depends on ARCH_R8A77470
966 Say Y here if you want kernel low-level debugging support
967 via SCIF1 on Renesas RZ/G1C (R8A77470).
969 config DEBUG_RCAR_GEN2_SCIF2
970 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
971 depends on ARCH_R8A7794
973 Say Y here if you want kernel low-level debugging support
974 via SCIF2 on Renesas R-Car E2 (R8A7794).
976 config DEBUG_RCAR_GEN2_SCIF4
977 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
978 depends on ARCH_R8A7745
980 Say Y here if you want kernel low-level debugging support
981 via SCIF4 on Renesas RZ/G1E (R8A7745).
983 config DEBUG_RMOBILE_SCIFA0
984 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
985 depends on ARCH_R8A73A4
987 Say Y here if you want kernel low-level debugging support
988 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
990 config DEBUG_RMOBILE_SCIFA1
991 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
992 depends on ARCH_R8A7740
994 Say Y here if you want kernel low-level debugging support
995 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
997 config DEBUG_RMOBILE_SCIFA4
998 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
999 depends on ARCH_SH73A0
1001 Say Y here if you want kernel low-level debugging support
1002 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1004 config DEBUG_S3C_UART0
1005 depends on PLAT_SAMSUNG
1006 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1007 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1008 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1009 select DEBUG_S5PV210_UART if ARCH_S5PV210
1010 bool "Use Samsung S3C UART 0 for low-level debug"
1012 Say Y here if you want the debug print routines to direct
1013 their output to UART 0. The port must have been initialised
1014 by the boot-loader before use.
1016 config DEBUG_S3C_UART1
1017 depends on PLAT_SAMSUNG
1018 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1019 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1020 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1021 select DEBUG_S5PV210_UART if ARCH_S5PV210
1022 bool "Use Samsung S3C UART 1 for low-level debug"
1024 Say Y here if you want the debug print routines to direct
1025 their output to UART 1. The port must have been initialised
1026 by the boot-loader before use.
1028 config DEBUG_S3C_UART2
1029 depends on PLAT_SAMSUNG
1030 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1031 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1032 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1033 select DEBUG_S5PV210_UART if ARCH_S5PV210
1034 bool "Use Samsung S3C UART 2 for low-level debug"
1036 Say Y here if you want the debug print routines to direct
1037 their output to UART 2. The port must have been initialised
1038 by the boot-loader before use.
1040 config DEBUG_S3C_UART3
1041 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
1042 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1043 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1044 select DEBUG_S5PV210_UART if ARCH_S5PV210
1045 bool "Use Samsung S3C UART 3 for low-level debug"
1047 Say Y here if you want the debug print routines to direct
1048 their output to UART 3. The port must have been initialised
1049 by the boot-loader before use.
1051 config DEBUG_S3C2410_UART0
1052 depends on ARCH_S3C24XX
1053 select DEBUG_S3C2410_UART
1054 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1056 Say Y here if you want the debug print routines to direct
1057 their output to UART 0. The port must have been initialised
1058 by the boot-loader before use.
1060 config DEBUG_S3C2410_UART1
1061 depends on ARCH_S3C24XX
1062 select DEBUG_S3C2410_UART
1063 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1065 Say Y here if you want the debug print routines to direct
1066 their output to UART 1. The port must have been initialised
1067 by the boot-loader before use.
1069 config DEBUG_S3C2410_UART2
1070 depends on ARCH_S3C24XX
1071 select DEBUG_S3C2410_UART
1072 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1074 Say Y here if you want the debug print routines to direct
1075 their output to UART 2. The port must have been initialised
1076 by the boot-loader before use.
1079 depends on ARCH_SA1100
1080 bool "Use SA1100 UARTs for low-level debug"
1082 Say Y here if you want kernel low-level debugging support
1083 on SA-11x0 UART ports. The kernel will check for the first
1084 enabled UART in a sequence 3-1-2.
1086 config DEBUG_SOCFPGA_UART0
1087 depends on ARCH_SOCFPGA
1088 bool "Use SOCFPGA UART0 for low-level debug"
1089 select DEBUG_UART_8250
1091 Say Y here if you want kernel low-level debugging support
1092 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1094 config DEBUG_SOCFPGA_ARRIA10_UART1
1095 depends on ARCH_SOCFPGA
1096 bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1097 select DEBUG_UART_8250
1099 Say Y here if you want kernel low-level debugging support
1100 on SOCFPGA(Arria 10) based platforms.
1102 config DEBUG_SOCFPGA_CYCLONE5_UART1
1103 depends on ARCH_SOCFPGA
1104 bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1105 select DEBUG_UART_8250
1107 Say Y here if you want kernel low-level debugging support
1108 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1110 config DEBUG_SUN9I_UART0
1111 bool "Kernel low-level debugging messages via sun9i UART0"
1112 depends on MACH_SUN9I
1113 select DEBUG_UART_8250
1115 Say Y here if you want kernel low-level debugging support
1116 on Allwinner A80 based platforms on the UART0.
1118 config DEBUG_SUNXI_UART0
1119 bool "Kernel low-level debugging messages via sunXi UART0"
1120 depends on ARCH_SUNXI
1121 select DEBUG_UART_8250
1123 Say Y here if you want kernel low-level debugging support
1124 on Allwinner A1X based platforms on the UART0.
1126 config DEBUG_SUNXI_UART1
1127 bool "Kernel low-level debugging messages via sunXi UART1"
1128 depends on ARCH_SUNXI
1129 select DEBUG_UART_8250
1131 Say Y here if you want kernel low-level debugging support
1132 on Allwinner A1X based platforms on the UART1.
1134 config DEBUG_SUNXI_R_UART
1135 bool "Kernel low-level debugging messages via sunXi R_UART"
1136 depends on MACH_SUN6I || MACH_SUN8I
1137 select DEBUG_UART_8250
1139 Say Y here if you want kernel low-level debugging support
1140 on Allwinner A31/A23 based platforms on the R_UART.
1142 config DEBUG_SIRFPRIMA2_UART1
1143 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1144 depends on ARCH_PRIMA2
1145 select DEBUG_SIRFSOC_UART
1147 Say Y here if you want the debug print routines to direct
1148 their output to the uart1 port on SiRFprimaII devices.
1150 config DEBUG_SIRFATLAS7_UART0
1151 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1152 depends on ARCH_ATLAS7
1153 select DEBUG_SIRFSOC_UART
1155 Say Y here if you want the debug print routines to direct
1156 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1157 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1158 debug port can be very useful.
1160 config DEBUG_SIRFATLAS7_UART1
1161 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1162 depends on ARCH_ATLAS7
1163 select DEBUG_SIRFSOC_UART
1165 Say Y here if you want the debug print routines to direct
1166 their output to the uart1 port on SiRFATLAS7 devices.
1168 config DEBUG_SPEAR3XX
1169 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1170 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1171 select DEBUG_UART_PL01X
1173 Say Y here if you want kernel low-level debugging support
1174 on ST SPEAr based platforms.
1176 config DEBUG_SPEAR13XX
1177 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1178 depends on ARCH_SPEAR13XX
1179 select DEBUG_UART_PL01X
1181 Say Y here if you want kernel low-level debugging support
1182 on ST SPEAr13xx based platforms.
1184 config STIH41X_DEBUG_ASC2
1185 bool "Use StiH415/416 ASC2 UART for low-level debug"
1187 select DEBUG_STI_UART
1189 Say Y here if you want kernel low-level debugging support
1190 on STiH415/416 based platforms like b2000, which has
1191 default UART wired up to ASC2.
1195 config STIH41X_DEBUG_SBC_ASC1
1196 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1198 select DEBUG_STI_UART
1200 Say Y here if you want kernel low-level debugging support
1201 on STiH415/416 based platforms like b2020. which has
1202 default UART wired up to SBC ASC1.
1206 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1207 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1208 depends on ARCH_TEGRA
1209 select DEBUG_TEGRA_UART
1211 Automatically determines which UART to use for low-level
1212 debug based on the ODMDATA value. This value is part of
1213 the BCT, and is written to the boot memory device using
1214 nvflash, or other flashing tool. When bits 19:18 are 3,
1215 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1218 config TEGRA_DEBUG_UARTA
1219 bool "Kernel low-level debugging messages via Tegra UART A"
1220 depends on ARCH_TEGRA
1221 select DEBUG_TEGRA_UART
1223 Say Y here if you want kernel low-level debugging support
1224 on Tegra based platforms.
1226 config TEGRA_DEBUG_UARTB
1227 bool "Kernel low-level debugging messages via Tegra UART B"
1228 depends on ARCH_TEGRA
1229 select DEBUG_TEGRA_UART
1231 Say Y here if you want kernel low-level debugging support
1232 on Tegra based platforms.
1234 config TEGRA_DEBUG_UARTC
1235 bool "Kernel low-level debugging messages via Tegra UART C"
1236 depends on ARCH_TEGRA
1237 select DEBUG_TEGRA_UART
1239 Say Y here if you want kernel low-level debugging support
1240 on Tegra based platforms.
1242 config TEGRA_DEBUG_UARTD
1243 bool "Kernel low-level debugging messages via Tegra UART D"
1244 depends on ARCH_TEGRA
1245 select DEBUG_TEGRA_UART
1247 Say Y here if you want kernel low-level debugging support
1248 on Tegra based platforms.
1250 config TEGRA_DEBUG_UARTE
1251 bool "Kernel low-level debugging messages via Tegra UART E"
1252 depends on ARCH_TEGRA
1253 select DEBUG_TEGRA_UART
1255 Say Y here if you want kernel low-level debugging support
1256 on Tegra based platforms.
1258 config DEBUG_U300_UART
1259 bool "Kernel low-level debugging messages via U300 UART0"
1260 depends on ARCH_U300
1261 select DEBUG_UART_PL01X
1263 Say Y here if you want the debug print routines to direct
1264 their output to the uart port on U300 devices.
1266 config DEBUG_UX500_UART
1267 depends on ARCH_U8500
1268 bool "Use Ux500 UART for low-level debug"
1270 Say Y here if you want kernel low-level debugging support
1271 on Ux500 based platforms.
1273 config DEBUG_VERSATILE
1274 bool "Kernel low-level debugging messages via ARM Versatile UART"
1275 depends on ARCH_VERSATILE
1276 select DEBUG_UART_PL01X
1278 Say Y here if you want kernel low-level debugging support
1279 on ARM Versatile platforms.
1281 config DEBUG_VEXPRESS_UART0_DETECT
1282 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1283 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1285 This option enables a simple heuristic which tries to determine
1286 the motherboard's memory map variant (original or RS1) and then
1287 choose the relevant UART0 base address.
1289 Note that this will only work with standard A-class core tiles,
1290 and may fail with non-standard SMM or custom software models.
1292 config DEBUG_VEXPRESS_UART0_CA9
1293 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1294 depends on ARCH_VEXPRESS
1295 select DEBUG_UART_PL01X
1297 This option selects UART0 at 0x10009000. Except for custom models,
1298 this applies only to the V2P-CA9 tile.
1300 config DEBUG_VEXPRESS_UART0_RS1
1301 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1302 depends on ARCH_VEXPRESS
1303 select DEBUG_UART_PL01X
1305 This option selects UART0 at 0x1c090000. This applies to most
1306 of the tiles using the RS1 memory map, including all new A-class
1307 core tiles, FPGA-based SMMs and software models.
1309 config DEBUG_VEXPRESS_UART0_CRX
1310 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1311 depends on ARCH_VEXPRESS && !MMU
1312 select DEBUG_UART_PL01X
1314 This option selects UART0 at 0xb0090000. This is appropriate for
1315 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1317 config DEBUG_VF_UART
1319 depends on SOC_VF610
1321 Say Y here if you want kernel low-level debugging support
1322 on Vybrid based platforms.
1324 config DEBUG_VT8500_UART0
1325 bool "Use UART0 on VIA/Wondermedia SoCs"
1326 depends on ARCH_VT8500
1328 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1329 devices, including VT8500, WM8505, WM8650 and WM8850.
1332 bool "Use ZTE ZX UART"
1333 select DEBUG_UART_PL01X
1336 Say Y here if you are enabling ZTE ZX296702 SOC and need
1339 This option is preferred over the platform specific
1340 options; the platform specific options are deprecated
1341 and will be soon removed.
1343 config DEBUG_ZYNQ_UART0
1344 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1345 depends on ARCH_ZYNQ
1347 Say Y here if you want the debug print routines to direct
1348 their output to UART0 on the Zynq platform.
1350 config DEBUG_ZYNQ_UART1
1351 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1352 depends on ARCH_ZYNQ
1354 Say Y here if you want the debug print routines to direct
1355 their output to UART1 on the Zynq platform.
1357 If you have a ZC702 board and want early boot messages to
1358 appear on the USB serial adaptor, select this option.
1361 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1363 Say Y here if you want the debug print routines to direct
1364 their output to the EmbeddedICE macrocell's DCC channel using
1365 co-processor 14. This is known to work on the ARM9 style ICE
1366 channel and on the XScale with the PEEDI.
1368 Note that the system will appear to hang during boot if there
1369 is nothing connected to read from the DCC.
1371 config DEBUG_SEMIHOSTING
1372 bool "Kernel low-level debug output via semihosting I/O"
1374 Semihosting enables code running on an ARM target to use
1375 the I/O facilities on a host debugger/emulator through a
1376 simple SVC call. The host debugger or emulator must have
1377 semihosting enabled for the special svc call to be trapped
1378 otherwise the kernel will crash.
1380 This is known to work with OpenOCD, as well as
1381 ARM's Fast Models, or any other controlling environment
1382 that implements semihosting.
1384 For more details about semihosting, please see
1385 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1387 config DEBUG_LL_UART_8250
1388 bool "Kernel low-level debugging via 8250 UART"
1390 Say Y here if you wish the debug print routes to direct
1391 their output to an 8250 UART. You can use this option
1392 to provide the parameters for the 8250 UART rather than
1393 selecting one of the platform specific options above if
1394 you know the parameters for the port.
1396 This option is preferred over the platform specific
1397 options; the platform specific options are deprecated
1398 and will be soon removed.
1400 config DEBUG_LL_UART_EFM32
1401 bool "Kernel low-level debugging via efm32 UART"
1402 depends on ARCH_EFM32
1404 Say Y here if you want the debug print routines to direct
1405 their output to an UART or USART port on efm32 based
1406 machines. Use the following addresses for DEBUG_UART_PHYS:
1414 config DEBUG_LL_UART_PL01X
1415 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1417 Say Y here if you wish the debug print routes to direct
1418 their output to a PL01x Primecell UART. You can use
1419 this option to provide the parameters for the UART
1420 rather than selecting one of the platform specific
1421 options above if you know the parameters for the port.
1423 This option is preferred over the platform specific
1424 options; the platform specific options are deprecated
1425 and will be soon removed.
1429 config DEBUG_AT91_UART
1431 depends on ARCH_AT91
1433 config DEBUG_EXYNOS_UART
1436 config DEBUG_S3C2410_UART
1438 select DEBUG_S3C24XX_UART
1440 config DEBUG_S3C24XX_UART
1443 config DEBUG_S3C64XX_UART
1446 config DEBUG_S5PV210_UART
1449 config DEBUG_OMAP2PLUS_UART
1451 depends on ARCH_OMAP2PLUS
1453 config DEBUG_IMX_UART_PORT
1454 int "i.MX Debug UART Port Selection"
1455 depends on DEBUG_IMX1_UART || \
1456 DEBUG_IMX25_UART || \
1457 DEBUG_IMX21_IMX27_UART || \
1458 DEBUG_IMX31_UART || \
1459 DEBUG_IMX35_UART || \
1460 DEBUG_IMX50_UART || \
1461 DEBUG_IMX51_UART || \
1462 DEBUG_IMX53_UART || \
1463 DEBUG_IMX6Q_UART || \
1464 DEBUG_IMX6SL_UART || \
1465 DEBUG_IMX6SX_UART || \
1466 DEBUG_IMX6UL_UART || \
1470 Choose UART port on which kernel low-level debug messages
1473 config DEBUG_VF_UART_PORT
1474 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1477 depends on SOC_VF610
1479 Choose UART port on which kernel low-level debug messages
1482 config DEBUG_TEGRA_UART
1484 depends on ARCH_TEGRA
1486 config DEBUG_STI_UART
1490 config DEBUG_SIRFSOC_UART
1492 depends on ARCH_SIRF
1494 config DEBUG_LL_INCLUDE
1496 default "debug/sa1100.S" if DEBUG_SA1100
1497 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1498 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1499 default "debug/at91.S" if DEBUG_AT91_UART
1500 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1501 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1502 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1503 default "debug/meson.S" if DEBUG_MESON_UARTAO
1504 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1505 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1506 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1507 default "debug/icedcc.S" if DEBUG_ICEDCC
1508 default "debug/imx.S" if DEBUG_IMX1_UART || \
1509 DEBUG_IMX25_UART || \
1510 DEBUG_IMX21_IMX27_UART || \
1511 DEBUG_IMX31_UART || \
1512 DEBUG_IMX35_UART || \
1513 DEBUG_IMX50_UART || \
1514 DEBUG_IMX51_UART || \
1515 DEBUG_IMX53_UART ||\
1516 DEBUG_IMX6Q_UART || \
1517 DEBUG_IMX6SL_UART || \
1518 DEBUG_IMX6SX_UART || \
1519 DEBUG_IMX6UL_UART || \
1521 default "debug/ks8695.S" if DEBUG_KS8695_UART
1522 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1523 default "debug/netx.S" if DEBUG_NETX_UART
1524 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1525 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1526 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1527 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1528 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1529 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1530 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1531 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1532 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1533 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1534 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1535 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1536 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1537 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1538 default "debug/sti.S" if DEBUG_STI_UART
1539 default "debug/tegra.S" if DEBUG_TEGRA_UART
1540 default "debug/ux500.S" if DEBUG_UX500_UART
1541 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1542 default "debug/vf.S" if DEBUG_VF_UART
1543 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1544 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1545 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1546 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1547 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1548 default "mach/debug-macro.S"
1550 # Compatibility options for PL01x
1551 config DEBUG_UART_PL01X
1554 # Compatibility options for 8250
1555 config DEBUG_UART_8250
1556 def_bool ARCH_EBSA110 || \
1557 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1560 config DEBUG_UART_PHYS
1561 hex "Physical base address of debug UART"
1562 default 0x00100a00 if DEBUG_NETX_UART
1563 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1564 default 0x01c28000 if DEBUG_SUNXI_UART0
1565 default 0x01c28400 if DEBUG_SUNXI_UART1
1566 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1567 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1568 default 0x01f02800 if DEBUG_SUNXI_R_UART
1569 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1570 default 0x02531000 if DEBUG_KEYSTONE_UART1
1571 default 0x03010fe0 if ARCH_RPC
1572 default 0x07000000 if DEBUG_SUN9I_UART0
1573 default 0x09405000 if DEBUG_ZTE_ZX
1574 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1575 DEBUG_VEXPRESS_UART0_CA9
1576 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1577 default 0x10124000 if DEBUG_RK3X_UART0
1578 default 0x10126000 if DEBUG_RK3X_UART1
1579 default 0x101f1000 if DEBUG_VERSATILE
1580 default 0x101fb000 if DEBUG_NOMADIK_UART
1581 default 0x10210000 if DEBUG_RV1108_UART2
1582 default 0x10220000 if DEBUG_RV1108_UART1
1583 default 0x10230000 if DEBUG_RV1108_UART0
1584 default 0x11002000 if DEBUG_MT8127_UART0
1585 default 0x11006000 if DEBUG_MT6589_UART0
1586 default 0x11009000 if DEBUG_MT8135_UART3
1587 default 0x16000000 if DEBUG_INTEGRATOR
1588 default 0x18000300 if DEBUG_BCM_5301X
1589 default 0x18000400 if DEBUG_BCM_HR2
1590 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1591 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1592 default 0x18023000 if DEBUG_BCM_IPROC_UART3
1593 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1594 default 0x20001000 if DEBUG_HIP01_UART
1595 default 0x20060000 if DEBUG_RK29_UART0
1596 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1597 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1598 default 0x20201000 if DEBUG_BCM2835
1599 default 0x3e000000 if DEBUG_BCM_KONA_UART
1600 default 0x3f201000 if DEBUG_BCM2836
1601 default 0x4000e400 if DEBUG_LL_UART_EFM32
1602 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1603 default 0x40081000 if DEBUG_LPC18XX_UART0
1604 default 0x40090000 if DEBUG_LPC32XX
1605 default 0x40100000 if DEBUG_PXA_UART1
1606 default 0x42000000 if DEBUG_GEMINI
1607 default 0x44e09000 if DEBUG_AM33XXUART1
1608 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1609 default 0x48022000 if DEBUG_TI81XXUART2
1610 default 0x48024000 if DEBUG_TI81XXUART3
1611 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1612 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1613 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1614 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1615 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1616 default 0x49020000 if DEBUG_OMAP3UART3
1617 default 0x49042000 if DEBUG_OMAP3UART4
1618 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1619 DEBUG_S3C2410_UART0)
1620 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1621 DEBUG_S3C2410_UART1)
1622 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1623 DEBUG_S3C2410_UART2)
1624 default 0x78000000 if DEBUG_CNS3XXX
1625 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1626 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1627 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1628 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1629 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1630 default 0x80010000 if DEBUG_ASM9260_UART
1631 default 0x80070000 if DEBUG_IMX23_UART
1632 default 0x80074000 if DEBUG_IMX28_UART
1633 default 0x80230000 if DEBUG_PICOXCELL_UART
1634 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1635 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1636 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1637 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1638 default 0xc0013000 if DEBUG_U300_UART
1639 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1640 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1641 default 0xd0000000 if DEBUG_SPEAR3XX
1642 default 0xd0012000 if DEBUG_MVEBU_UART0
1643 default 0xc81004c0 if DEBUG_MESON_UARTAO
1644 default 0xd4017000 if DEBUG_MMP_UART2
1645 default 0xd4018000 if DEBUG_MMP_UART3
1646 default 0xe0000000 if DEBUG_SPEAR13XX
1647 default 0xe4007000 if DEBUG_HIP04_UART
1648 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1649 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1650 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1651 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1652 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1653 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1654 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1655 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1656 default 0xf0000be0 if ARCH_EBSA110
1657 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1658 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1659 default 0xf7fc9000 if DEBUG_BERLIN_UART
1660 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1661 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1662 default 0xf991e000 if DEBUG_QCOM_UARTDM
1663 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1664 default 0xfcb00000 if DEBUG_HI3620_UART
1665 default 0xfd883000 if DEBUG_ALPINE_UART0
1666 default 0xfe800000 if ARCH_IOP32X
1667 default 0xff690000 if DEBUG_RK32_UART2
1668 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1669 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1670 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1671 default 0xffd82340 if ARCH_IOP13XX
1672 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1673 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1674 default 0xfff36000 if DEBUG_HIGHBANK_UART
1675 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1676 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1677 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1678 default 0xfffe8600 if DEBUG_BCM63XX_UART
1679 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1680 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1681 default 0xfffff700 if ARCH_IOP33X
1682 depends on ARCH_EP93XX || \
1683 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1684 DEBUG_LL_UART_EFM32 || \
1685 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1686 DEBUG_NETX_UART || \
1687 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1688 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1689 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1690 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1691 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1692 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1693 DEBUG_S3C64XX_UART || \
1694 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1695 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1698 config DEBUG_UART_VIRT
1699 hex "Virtual base address of debug UART"
1700 default 0xc881f000 if DEBUG_RV1108_UART2
1701 default 0xc8821000 if DEBUG_RV1108_UART1
1702 default 0xc8912000 if DEBUG_RV1108_UART0
1703 default 0xe0000a00 if DEBUG_NETX_UART
1704 default 0xe0010fe0 if ARCH_RPC
1705 default 0xf0000be0 if ARCH_EBSA110
1706 default 0xf0010000 if DEBUG_ASM9260_UART
1707 default 0xf01fb000 if DEBUG_NOMADIK_UART
1708 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1709 default 0xf1000300 if DEBUG_BCM_5301X
1710 default 0xf1000400 if DEBUG_BCM_HR2
1711 default 0xf1002000 if DEBUG_MT8127_UART0
1712 default 0xf1006000 if DEBUG_MT6589_UART0
1713 default 0xf1009000 if DEBUG_MT8135_UART3
1714 default 0xf1023000 if DEBUG_BCM_IPROC_UART3
1715 default 0xf11f1000 if DEBUG_VERSATILE
1716 default 0xf1600000 if DEBUG_INTEGRATOR
1717 default 0xf1c28000 if DEBUG_SUNXI_UART0
1718 default 0xf1c28400 if DEBUG_SUNXI_UART1
1719 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1720 default 0xf31004c0 if DEBUG_MESON_UARTAO
1721 default 0xf4090000 if DEBUG_LPC32XX
1722 default 0xf4200000 if DEBUG_GEMINI
1723 default 0xf6200000 if DEBUG_PXA_UART1
1724 default 0xf7000000 if DEBUG_SUN9I_UART0
1725 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1726 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1727 DEBUG_S3C2410_UART0)
1728 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1729 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1730 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1731 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1732 DEBUG_S3C2410_UART1)
1733 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1734 DEBUG_S3C2410_UART2)
1735 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1736 default 0xf7fc9000 if DEBUG_BERLIN_UART
1737 default 0xf8007000 if DEBUG_HIP04_UART
1738 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1739 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1740 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1741 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1742 default 0xf9e09000 if DEBUG_AM33XXUART1
1743 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1744 default 0xfa022000 if DEBUG_TI81XXUART2
1745 default 0xfa024000 if DEBUG_TI81XXUART3
1746 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1747 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1748 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1749 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1750 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1751 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1752 default 0xfb002000 if DEBUG_CNS3XXX
1753 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1754 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1755 default 0xfb020000 if DEBUG_OMAP3UART3
1756 default 0xfb042000 if DEBUG_OMAP3UART4
1757 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1758 default 0xfc705000 if DEBUG_ZTE_ZX
1759 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1760 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1761 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1762 default 0xfd883000 if DEBUG_ALPINE_UART0
1763 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1764 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1765 default 0xfe017000 if DEBUG_MMP_UART2
1766 default 0xfe018000 if DEBUG_MMP_UART3
1767 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1768 default 0xfe230000 if DEBUG_PICOXCELL_UART
1769 default 0xfe300000 if DEBUG_BCM_KONA_UART
1770 default 0xfe800000 if ARCH_IOP32X
1771 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1772 default 0xfeb24000 if DEBUG_RK3X_UART0
1773 default 0xfeb26000 if DEBUG_RK3X_UART1
1774 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1775 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1776 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1777 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
1778 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
1779 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1780 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1781 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1782 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1783 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1784 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1785 default 0xfec90000 if DEBUG_RK32_UART2
1786 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1787 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1788 default 0xfed60000 if DEBUG_RK29_UART0
1789 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1790 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1791 default 0xfedc0000 if DEBUG_EP93XX
1792 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1793 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1794 default 0xfee82340 if ARCH_IOP13XX
1795 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1796 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1797 default 0xfef36000 if DEBUG_HIGHBANK_UART
1798 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1799 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1800 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1801 default 0xfefff700 if ARCH_IOP33X
1802 default 0xff003000 if DEBUG_U300_UART
1803 default 0xffd01000 if DEBUG_HIP01_UART
1804 default DEBUG_UART_PHYS if !MMU
1805 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1806 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1807 DEBUG_NETX_UART || \
1808 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1809 DEBUG_S3C64XX_UART || \
1810 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1811 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1814 config DEBUG_UART_8250_SHIFT
1815 int "Register offset shift for the 8250 debug UART"
1816 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1817 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1818 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1822 config DEBUG_UART_8250_WORD
1823 bool "Use 32-bit accesses for 8250 UART"
1824 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1825 depends on DEBUG_UART_8250_SHIFT >= 2
1826 default y if DEBUG_PICOXCELL_UART || \
1827 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
1828 DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
1829 DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
1830 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1831 DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
1832 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1834 config DEBUG_UART_8250_PALMCHIP
1835 bool "8250 UART is Palmchip BK-310x"
1836 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1838 Palmchip provides a UART implementation compatible with 16550
1839 except for having a different register layout. Say Y here if
1840 the debug UART is of this type.
1842 config DEBUG_UART_8250_FLOW_CONTROL
1843 bool "Enable flow control for 8250 UART"
1844 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1845 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1847 config DEBUG_UNCOMPRESS
1848 bool "Enable decompressor debugging via DEBUG_LL output"
1849 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1850 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1851 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1854 This option influences the normal decompressor output for
1855 multiplatform kernels. Normally, multiplatform kernels disable
1856 decompressor output because it is not possible to know where to
1857 send the decompressor output.
1859 When this option is set, the selected DEBUG_LL output method
1860 will be re-used for normal decompressor output on multiplatform
1864 config UNCOMPRESS_INCLUDE
1866 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1867 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1868 default "mach/uncompress.h"
1874 Say Y here if you want to have an early console using the
1875 kernel low-level debugging functions. Add earlyprintk to your
1876 kernel parameters to enable this console.
1878 config ARM_KPROBES_TEST
1879 tristate "Kprobes test module"
1880 depends on KPROBES && MODULES
1882 Perform tests of kprobes API and instruction set simulation.
1884 config PID_IN_CONTEXTIDR
1885 bool "Write the current PID to the CONTEXTIDR register"
1886 depends on CPU_COPY_V6
1888 Enabling this option causes the kernel to write the current PID to
1889 the PROCID field of the CONTEXTIDR register, at the expense of some
1890 additional instructions during context switch. Say Y here only if you
1891 are planning to use hardware trace tools with this kernel.
1893 source "drivers/hwtracing/coresight/Kconfig"