1 # SPDX-License-Identifier: GPL-2.0
4 source "lib/Kconfig.debug"
9 config ARM_PTDUMP_DEBUGFS
10 bool "Export kernel pagetable layout to userspace via debugfs"
11 depends on DEBUG_KERNEL
13 select ARM_PTDUMP_CORE
16 Say Y here if you want to show the kernel pagetable layout in a
17 debugfs file. This information is only useful for kernel developers
18 who are working in architecture specific areas of the kernel.
19 It is probably not a good idea to enable this feature in a production
24 bool "Warn on W+X mappings at boot"
26 select ARM_PTDUMP_CORE
28 Generate a warning if any W+X mappings are found at boot.
30 This is useful for discovering cases where the kernel is leaving
31 W+X mappings after applying NX, as such mappings are a security risk.
33 Look for a message in dmesg output like this:
35 arm/mm: Checked W+X mappings: passed, no W+X pages found.
37 or like this, if the check failed:
39 arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
41 Note that even if the check fails, your kernel is possibly
42 still fine, as W+X mappings are not a security hole in
43 themselves, what they do is that they make the exploitation
44 of other unfixed kernel bugs easier.
46 There is no runtime or memory usage effect of this option
47 once the kernel has booted up - it's a one time check.
51 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
52 # If you know what you are doing and are willing to live without stack
53 # traces, you can get a slightly smaller kernel by setting this option to
54 # n, but then RMK will have to kill you ;).
57 depends on !THUMB2_KERNEL
58 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
60 If you say N here, the resulting kernel will be slightly smaller and
61 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
62 when a problem occurs with the kernel, the information that is
63 reported is severely limited.
66 bool "Enable stack unwinding support (EXPERIMENTAL)"
70 This option enables stack unwinding support in the kernel
71 using the information automatically generated by the
72 compiler. The resulting kernel image is slightly bigger but
73 the performance is not affected. Currently, this feature
74 only works with EABI compilers. If unsure say Y.
78 depends on FUNCTION_TRACER && FRAME_POINTER
82 bool "Verbose user fault messages"
84 When a user program crashes due to an exception, the kernel can
85 print a brief message explaining what the problem was. This is
86 sometimes helpful for debugging but serves no purpose on a
87 production system. Most people should say N here.
89 In addition, you need to pass user_debug=N on the kernel command
90 line to enable this feature. N consists of the sum of:
92 1 - undefined instruction events
94 4 - invalid data aborts
98 # These options are only for real kernel hackers who want to get their hands dirty.
100 bool "Kernel low-level debugging functions (read help!)"
101 depends on DEBUG_KERNEL
103 Say Y here to include definitions of printascii, printch, printhex
104 in the kernel. This is helpful if you are debugging code that
105 executes before the console is initialized.
107 Note that selecting this option will limit the kernel to a single
108 UART definition, as specified below. Attempting to boot the kernel
109 image on a different platform *will not work*, so this option should
110 not be enabled for kernels that are intended to be portable.
113 prompt "Kernel low-level debugging port"
116 config DEBUG_ALPINE_UART0
117 bool "Kernel low-level debugging messages via Alpine UART0"
118 depends on ARCH_ALPINE
119 select DEBUG_UART_8250
121 Say Y here if you want kernel low-level debugging support
122 on Alpine based platforms.
124 config DEBUG_ASM9260_UART
125 bool "Kernel low-level debugging via asm9260 UART"
126 depends on MACH_ASM9260
128 Say Y here if you want the debug print routines to direct
129 their output to an UART or USART port on asm9260 based
132 DEBUG_UART_PHYS | DEBUG_UART_VIRT
134 0x80000000 | 0xf0000000 | UART0
135 0x80004000 | 0xf0004000 | UART1
136 0x80008000 | 0xf0008000 | UART2
137 0x8000c000 | 0xf000c000 | UART3
138 0x80010000 | 0xf0010000 | UART4
139 0x80014000 | 0xf0014000 | UART5
140 0x80018000 | 0xf0018000 | UART6
141 0x8001c000 | 0xf001c000 | UART7
142 0x80020000 | 0xf0020000 | UART8
143 0x80024000 | 0xf0024000 | UART9
145 config DEBUG_AT91_RM9200_DBGU
146 bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
147 select DEBUG_AT91_UART
148 depends on SOC_AT91RM9200 || SOC_AT91SAM9
150 Say Y here if you want kernel low-level debugging support
152 at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
153 at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
155 config DEBUG_AT91_SAM9263_DBGU
156 bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
157 select DEBUG_AT91_UART
158 depends on SOC_AT91SAM9 || SOC_SAMA5D3
160 Say Y here if you want kernel low-level debugging support
162 at91sam9263, at91sam9g45, at91sam9m10,
165 config DEBUG_AT91_SAMA5D2_UART1
166 bool "Kernel low-level debugging on SAMA5D2 UART1"
167 select DEBUG_AT91_UART
168 depends on SOC_SAMA5D2
170 Say Y here if you want kernel low-level debugging support
171 on the UART1 port of sama5d2.
173 config DEBUG_AT91_SAMA5D4_USART3
174 bool "Kernel low-level debugging on SAMA5D4 USART3"
175 select DEBUG_AT91_UART
176 depends on SOC_SAMA5D4
178 Say Y here if you want kernel low-level debugging support
179 on the USART3 port of sama5d4.
181 config DEBUG_AT91_SAMV7_USART1
182 bool "Kernel low-level debugging via SAMV7 USART1"
183 select DEBUG_AT91_UART
186 Say Y here if you want the debug print routines to direct
187 their output to the USART1 port on SAMV7 based
191 bool "Kernel low-level debugging on BCM2835 PL011 UART"
192 depends on ARCH_BCM2835 && ARCH_MULTI_V6
193 select DEBUG_UART_PL01X
196 bool "Kernel low-level debugging on BCM2836 PL011 UART"
197 depends on ARCH_BCM2835 && ARCH_MULTI_V7
198 select DEBUG_UART_PL01X
200 config DEBUG_BCM_5301X
201 bool "Kernel low-level debugging on BCM5301X/NSP UART1"
202 depends on ARCH_BCM_5301X || ARCH_BCM_NSP
203 select DEBUG_UART_8250
206 bool "Kernel low-level debugging on Hurricane 2 UART2"
207 depends on ARCH_BCM_HR2
208 select DEBUG_UART_8250
210 config DEBUG_BCM_KONA_UART
211 bool "Kernel low-level debugging messages via BCM KONA UART"
212 depends on ARCH_BCM_MOBILE
213 select DEBUG_UART_8250
215 Say Y here if you want kernel low-level debugging support
216 on Broadcom SoC platforms.
217 This low level debug works for Broadcom
218 mobile SoCs in the Kona family of chips (e.g. bcm28155,
221 config DEBUG_BCM63XX_UART
222 bool "Kernel low-level debugging on BCM63XX UART"
223 depends on ARCH_BCM_63XX
225 config DEBUG_BERLIN_UART
226 bool "Marvell Berlin SoC Debug UART"
227 depends on ARCH_BERLIN
228 select DEBUG_UART_8250
230 Say Y here if you want kernel low-level debugging support
231 on Marvell Berlin SoC based platforms.
233 config DEBUG_BRCMSTB_UART
234 bool "Use BRCMSTB UART for low-level debug"
235 depends on ARCH_BRCMSTB
237 Say Y here if you want the debug print routines to direct
238 their output to the first serial port on these devices. The
239 UART physical and virtual address is automatically provided
240 based on the chip identification register value.
242 If you have a Broadcom STB chip and would like early print
243 messages to appear over the UART, select this option.
245 config DEBUG_CLPS711X_UART1
246 bool "Kernel low-level debugging messages via UART1"
247 depends on ARCH_CLPS711X
249 Say Y here if you want the debug print routines to direct
250 their output to the first serial port on these devices.
252 config DEBUG_CLPS711X_UART2
253 bool "Kernel low-level debugging messages via UART2"
254 depends on ARCH_CLPS711X
256 Say Y here if you want the debug print routines to direct
257 their output to the second serial port on these devices.
260 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
261 depends on ARCH_CNS3XXX
262 select DEBUG_UART_8250
264 Say Y here if you want the debug print routines to direct
265 their output to the CNS3xxx UART0.
267 config DEBUG_DAVINCI_DA8XX_UART1
268 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
269 depends on ARCH_DAVINCI_DA8XX
270 select DEBUG_UART_8250
272 Say Y here if you want the debug print routines to direct
273 their output to UART1 serial port on DaVinci DA8XX devices.
275 config DEBUG_DAVINCI_DA8XX_UART2
276 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
277 depends on ARCH_DAVINCI_DA8XX
278 select DEBUG_UART_8250
280 Say Y here if you want the debug print routines to direct
281 their output to UART2 serial port on DaVinci DA8XX devices.
283 config DEBUG_DAVINCI_DMx_UART0
284 bool "Kernel low-level debugging on DaVinci DMx using UART0"
285 depends on ARCH_DAVINCI_DMx
286 select DEBUG_UART_8250
288 Say Y here if you want the debug print routines to direct
289 their output to UART0 serial port on DaVinci DMx devices.
291 config DEBUG_DC21285_PORT
292 bool "Kernel low-level debugging messages via footbridge serial port"
293 depends on FOOTBRIDGE
295 Say Y here if you want the debug print routines to direct
296 their output to the serial port in the DC21285 (Footbridge).
298 config DEBUG_DIGICOLOR_UA0
299 bool "Kernel low-level debugging messages via Digicolor UA0"
300 depends on ARCH_DIGICOLOR
302 Say Y here if you want the debug print routines to direct
303 their output to the UA0 serial port in the CX92755.
306 bool "Kernel low-level debugging messages via ep93xx UART"
307 depends on ARCH_EP93XX
308 select DEBUG_UART_PL01X
310 Say Y here if you want kernel low-level debugging support
311 on Cirrus Logic EP93xx based platforms.
313 config DEBUG_FOOTBRIDGE_COM1
314 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
315 depends on FOOTBRIDGE
316 select DEBUG_UART_8250
318 Say Y here if you want the debug print routines to direct
319 their output to the 8250 at PCI COM1.
322 bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
323 depends on ARCH_GEMINI
324 select DEBUG_UART_8250
326 Say Y here if you want kernel low-level debugging support
327 on Cortina Gemini based platforms.
329 config DEBUG_HI3620_UART
330 bool "Hisilicon HI3620 Debug UART"
331 depends on ARCH_HI3xxx
332 select DEBUG_UART_PL01X
334 Say Y here if you want kernel low-level debugging support
337 config DEBUG_HIGHBANK_UART
338 bool "Kernel low-level debugging messages via Highbank UART"
339 depends on ARCH_HIGHBANK
340 select DEBUG_UART_PL01X
342 Say Y here if you want the debug print routines to direct
343 their output to the UART on Highbank based devices.
345 config DEBUG_HIP01_UART
346 bool "Hisilicon Hip01 Debug UART"
347 depends on ARCH_HIP01
348 select DEBUG_UART_8250
350 Say Y here if you want kernel low-level debugging support
353 config DEBUG_HIP04_UART
354 bool "Hisilicon HiP04 Debug UART"
355 depends on ARCH_HIP04
356 select DEBUG_UART_8250
358 Say Y here if you want kernel low-level debugging support
361 config DEBUG_HIX5HD2_UART
362 bool "Hisilicon Hix5hd2 Debug UART"
363 depends on ARCH_HIX5HD2
364 select DEBUG_UART_PL01X
366 Say Y here if you want kernel low-level debugging support
369 config DEBUG_IMX1_UART
370 bool "i.MX1 Debug UART"
373 Say Y here if you want kernel low-level debugging support
376 config DEBUG_IMX23_UART
377 bool "i.MX23 Debug UART"
379 select DEBUG_UART_PL01X
381 Say Y here if you want kernel low-level debugging support
384 config DEBUG_IMX25_UART
385 bool "i.MX25 Debug UART"
388 Say Y here if you want kernel low-level debugging support
391 config DEBUG_IMX21_IMX27_UART
392 bool "i.MX21 and i.MX27 Debug UART"
393 depends on SOC_IMX21 || SOC_IMX27
395 Say Y here if you want kernel low-level debugging support
398 config DEBUG_IMX28_UART
399 bool "i.MX28 Debug UART"
401 select DEBUG_UART_PL01X
403 Say Y here if you want kernel low-level debugging support
406 config DEBUG_IMX31_UART
407 bool "i.MX31 Debug UART"
410 Say Y here if you want kernel low-level debugging support
413 config DEBUG_IMX35_UART
414 bool "i.MX35 Debug UART"
417 Say Y here if you want kernel low-level debugging support
420 config DEBUG_IMX50_UART
421 bool "i.MX50 Debug UART"
424 Say Y here if you want kernel low-level debugging support
427 config DEBUG_IMX51_UART
428 bool "i.MX51 Debug UART"
431 Say Y here if you want kernel low-level debugging support
434 config DEBUG_IMX53_UART
435 bool "i.MX53 Debug UART"
438 Say Y here if you want kernel low-level debugging support
441 config DEBUG_IMX6Q_UART
442 bool "i.MX6Q/DL Debug UART"
445 Say Y here if you want kernel low-level debugging support
448 config DEBUG_IMX6SL_UART
449 bool "i.MX6SL Debug UART"
450 depends on SOC_IMX6SL
452 Say Y here if you want kernel low-level debugging support
455 config DEBUG_IMX6SX_UART
456 bool "i.MX6SX Debug UART"
457 depends on SOC_IMX6SX
459 Say Y here if you want kernel low-level debugging support
462 config DEBUG_IMX6UL_UART
463 bool "i.MX6UL Debug UART"
464 depends on SOC_IMX6UL
466 Say Y here if you want kernel low-level debugging support
469 config DEBUG_IMX7D_UART
470 bool "i.MX7D Debug UART"
473 Say Y here if you want kernel low-level debugging support
476 config DEBUG_INTEGRATOR
477 bool "Kernel low-level debugging messages via ARM Integrator UART"
478 depends on ARCH_INTEGRATOR
479 select DEBUG_UART_PL01X
481 Say Y here if you want kernel low-level debugging support
482 on ARM Integrator platforms.
484 config DEBUG_KEYSTONE_UART0
485 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
486 depends on ARCH_KEYSTONE
487 select DEBUG_UART_8250
489 Say Y here if you want the debug print routines to direct
490 their output to UART0 serial port on KEYSTONE2 devices.
492 config DEBUG_KEYSTONE_UART1
493 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
494 depends on ARCH_KEYSTONE
495 select DEBUG_UART_8250
497 Say Y here if you want the debug print routines to direct
498 their output to UART1 serial port on KEYSTONE2 devices.
500 config DEBUG_KS8695_UART
501 bool "KS8695 Debug UART"
502 depends on ARCH_KS8695
504 Say Y here if you want kernel low-level debugging support
507 config DEBUG_LPC18XX_UART0
508 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
509 depends on ARCH_LPC18XX
510 select DEBUG_UART_8250
512 Say Y here if you want kernel low-level debugging support
513 on NXP LPC18xx/43xx UART0.
516 bool "Kernel low-level debugging messages via NXP LPC32xx UART"
517 depends on ARCH_LPC32XX
518 select DEBUG_UART_8250
520 Say Y here if you want kernel low-level debugging support
521 on NXP LPC32xx based platforms.
523 config DEBUG_MESON_UARTAO
524 bool "Kernel low-level debugging via Meson6 UARTAO"
525 depends on ARCH_MESON
527 Say Y here if you want kernel low-lever debugging support
528 on Amlogic Meson6 based platforms on the UARTAO.
530 config DEBUG_MMP_UART2
531 bool "Kernel low-level debugging message via MMP UART2"
533 select DEBUG_UART_8250
535 Say Y here if you want kernel low-level debugging support
538 config DEBUG_MMP_UART3
539 bool "Kernel low-level debugging message via MMP UART3"
541 select DEBUG_UART_8250
543 Say Y here if you want kernel low-level debugging support
546 config DEBUG_MVEBU_UART0
547 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
548 depends on ARCH_MVEBU
549 depends on ARCH_MVEBU && CPU_V7
550 select DEBUG_UART_8250
552 Say Y here if you want kernel low-level debugging support
553 on MVEBU based platforms on UART0.
555 This option should be used with the old bootloaders
556 that left the internal registers mapped at
557 0xd0000000. As of today, this is the case on
558 platforms such as the Globalscale Mirabox or the
559 Plathome OpenBlocks AX3, when using the original
562 This option will not work on older Marvell platforms
563 (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
564 the "new bootloader" variant.
566 If the wrong DEBUG_MVEBU_UART* option is selected,
567 when u-boot hands over to the kernel, the system
568 silently crashes, with no serial output at all.
570 config DEBUG_MVEBU_UART0_ALTERNATE
571 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
572 depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
573 select DEBUG_UART_8250
575 Say Y here if you want kernel low-level debugging support
576 on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
577 Kirkwood, Dove, MV78xx0, Orion5x).
580 This option should be used with the new bootloaders
581 that remap the internal registers at 0xf1000000.
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_UART1_ALTERNATE
588 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
589 depends on ARCH_MVEBU
590 select DEBUG_UART_8250
592 Say Y here if you want kernel low-level debugging support
593 on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
594 Kirkwood, Dove, MV78xx0, Orion5x).
596 This option should be used with the new bootloaders
597 that remap the internal registers at 0xf1000000.
598 All of the older (pre Armada XP/370) platforms also use
599 this address, regardless of the boot loader version.
601 If the wrong DEBUG_MVEBU_UART* option is selected,
602 when u-boot hands over to the kernel, the system
603 silently crashes, with no serial output at all.
605 config DEBUG_MT6589_UART0
606 bool "Mediatek mt6589 UART0"
607 depends on ARCH_MEDIATEK
608 select DEBUG_UART_8250
610 Say Y here if you want kernel low-level debugging support
611 for Mediatek mt6589 based platforms on UART0.
613 config DEBUG_MT8127_UART0
614 bool "Mediatek mt8127/mt6592 UART0"
615 depends on ARCH_MEDIATEK
616 select DEBUG_UART_8250
618 Say Y here if you want kernel low-level debugging support
619 for Mediatek mt8127 based platforms on UART0.
621 config DEBUG_MT8135_UART3
622 bool "Mediatek mt8135 UART3"
623 depends on ARCH_MEDIATEK
624 select DEBUG_UART_8250
626 Say Y here if you want kernel low-level debugging support
627 for Mediatek mt8135 based platforms on UART3.
629 config DEBUG_NETX_UART
630 bool "Kernel low-level debugging messages via NetX UART"
633 Say Y here if you want kernel low-level debugging support
634 on Hilscher NetX based platforms.
636 config DEBUG_NOMADIK_UART
637 bool "Kernel low-level debugging messages via NOMADIK UART"
638 depends on ARCH_NOMADIK
639 select DEBUG_UART_PL01X
641 Say Y here if you want kernel low-level debugging support
642 on NOMADIK based platforms.
644 config DEBUG_NSPIRE_CLASSIC_UART
645 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
646 depends on ARCH_NSPIRE
647 select DEBUG_UART_8250
649 Say Y here if you want kernel low-level debugging support
650 on TI-NSPIRE classic models.
652 config DEBUG_NSPIRE_CX_UART
653 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
654 depends on ARCH_NSPIRE
655 select DEBUG_UART_PL01X
657 Say Y here if you want kernel low-level debugging support
658 on TI-NSPIRE CX models.
660 config DEBUG_OMAP1UART1
661 bool "Kernel low-level debugging via OMAP1 UART1"
662 depends on ARCH_OMAP1
663 select DEBUG_UART_8250
665 Say Y here if you want kernel low-level debugging support
666 on OMAP1 based platforms (except OMAP730) on the UART1.
668 config DEBUG_OMAP1UART2
669 bool "Kernel low-level debugging via OMAP1 UART2"
670 depends on ARCH_OMAP1
671 select DEBUG_UART_8250
673 Say Y here if you want kernel low-level debugging support
674 on OMAP1 based platforms (except OMAP730) on the UART2.
676 config DEBUG_OMAP1UART3
677 bool "Kernel low-level debugging via OMAP1 UART3"
678 depends on ARCH_OMAP1
679 select DEBUG_UART_8250
681 Say Y here if you want kernel low-level debugging support
682 on OMAP1 based platforms (except OMAP730) on the UART3.
684 config DEBUG_OMAP2UART1
685 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
686 depends on ARCH_OMAP2PLUS
687 select DEBUG_UART_8250
689 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
690 omap3 torpedo and 3530 lv som.
692 config DEBUG_OMAP2UART2
693 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
694 depends on ARCH_OMAP2PLUS
695 select DEBUG_UART_8250
697 config DEBUG_OMAP2UART3
698 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
699 depends on ARCH_OMAP2PLUS
700 select DEBUG_UART_8250
702 config DEBUG_OMAP3UART3
703 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
704 depends on ARCH_OMAP2PLUS
705 select DEBUG_UART_8250
707 This covers at least cm_t3x, beagle, crane, devkit8000,
708 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
711 config DEBUG_OMAP4UART3
712 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
713 depends on ARCH_OMAP2PLUS
714 select DEBUG_UART_8250
716 config DEBUG_OMAP3UART4
717 bool "Kernel low-level debugging messages via OMAP36XX UART4"
718 depends on ARCH_OMAP2PLUS
719 select DEBUG_UART_8250
721 config DEBUG_OMAP4UART4
722 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
723 depends on ARCH_OMAP2PLUS
724 select DEBUG_UART_8250
726 config DEBUG_OMAP7XXUART1
727 bool "Kernel low-level debugging via OMAP730 UART1"
728 depends on ARCH_OMAP730
729 select DEBUG_UART_8250
731 Say Y here if you want kernel low-level debugging support
732 on OMAP730 based platforms on the UART1.
734 config DEBUG_OMAP7XXUART2
735 bool "Kernel low-level debugging via OMAP730 UART2"
736 depends on ARCH_OMAP730
737 select DEBUG_UART_8250
739 Say Y here if you want kernel low-level debugging support
740 on OMAP730 based platforms on the UART2.
742 config DEBUG_OMAP7XXUART3
743 bool "Kernel low-level debugging via OMAP730 UART3"
744 depends on ARCH_OMAP730
745 select DEBUG_UART_8250
747 Say Y here if you want kernel low-level debugging support
748 on OMAP730 based platforms on the UART3.
750 config DEBUG_TI81XXUART1
751 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
752 depends on ARCH_OMAP2PLUS
753 select DEBUG_UART_8250
755 config DEBUG_TI81XXUART2
756 bool "Kernel low-level debugging messages via TI81XX UART2"
757 depends on ARCH_OMAP2PLUS
758 select DEBUG_UART_8250
760 config DEBUG_TI81XXUART3
761 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
762 depends on ARCH_OMAP2PLUS
763 select DEBUG_UART_8250
765 config DEBUG_AM33XXUART1
766 bool "Kernel low-level debugging messages via AM33XX UART1"
767 depends on ARCH_OMAP2PLUS
768 select DEBUG_UART_8250
770 config DEBUG_ZOOM_UART
771 bool "Kernel low-level debugging messages via Zoom2/3 UART"
772 depends on ARCH_OMAP2PLUS
773 select DEBUG_OMAP2PLUS_UART
775 config DEBUG_PICOXCELL_UART
776 depends on ARCH_PICOXCELL
777 bool "Use PicoXcell UART for low-level debug"
778 select DEBUG_UART_8250
780 Say Y here if you want kernel low-level debugging support
781 on PicoXcell based platforms.
783 config DEBUG_PXA_UART1
785 bool "Use PXA UART1 for low-level debug"
786 select DEBUG_UART_8250
788 Say Y here if you want kernel low-level debugging support
791 config DEBUG_QCOM_UARTDM
792 bool "Kernel low-level debugging messages via QCOM UARTDM"
795 Say Y here if you want the debug print routines to direct
796 their output to the serial port on Qualcomm devices.
798 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
799 APQ8064 0x16640000 0xf0040000
800 APQ8084 0xf995e000 0xfa75e000
801 IPQ4019 0x078af000 0xf78af000
802 MSM8X60 0x19c40000 0xf0040000
803 MSM8960 0x16440000 0xf0040000
804 MSM8974 0xf991e000 0xfa71e000
806 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
807 options based on your needs.
809 config DEBUG_REALVIEW_STD_PORT
810 bool "RealView Default UART"
811 depends on ARCH_REALVIEW
812 select DEBUG_UART_PL01X
814 Say Y here if you want the debug print routines to direct
815 their output to the serial port on RealView EB, PB11MP, PBA8
818 config DEBUG_REALVIEW_PB1176_PORT
819 bool "RealView PB1176 UART"
820 depends on MACH_REALVIEW_PB1176
821 select DEBUG_UART_PL01X
823 Say Y here if you want the debug print routines to direct
824 their output to the standard serial port on the RealView
827 config DEBUG_RV1108_UART0
828 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
829 depends on ARCH_ROCKCHIP
830 select DEBUG_UART_8250
832 Say Y here if you want kernel low-level debugging support
833 on Rockchip RV1108 based platforms.
835 config DEBUG_RV1108_UART1
836 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
837 depends on ARCH_ROCKCHIP
838 select DEBUG_UART_8250
840 Say Y here if you want kernel low-level debugging support
841 on Rockchip RV1108 based platforms.
843 config DEBUG_RV1108_UART2
844 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
845 depends on ARCH_ROCKCHIP
846 select DEBUG_UART_8250
848 Say Y here if you want kernel low-level debugging support
849 on Rockchip RV1108 based platforms.
851 config DEBUG_RK29_UART0
852 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
853 depends on ARCH_ROCKCHIP
854 select DEBUG_UART_8250
856 Say Y here if you want kernel low-level debugging support
857 on Rockchip based platforms.
859 config DEBUG_RK29_UART1
860 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
861 depends on ARCH_ROCKCHIP
862 select DEBUG_UART_8250
864 Say Y here if you want kernel low-level debugging support
865 on Rockchip based platforms.
867 config DEBUG_RK29_UART2
868 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
869 depends on ARCH_ROCKCHIP
870 select DEBUG_UART_8250
872 Say Y here if you want kernel low-level debugging support
873 on Rockchip based platforms.
875 config DEBUG_RK3X_UART0
876 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
877 depends on ARCH_ROCKCHIP
878 select DEBUG_UART_8250
880 Say Y here if you want kernel low-level debugging support
881 on Rockchip based platforms.
883 config DEBUG_RK3X_UART1
884 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
885 depends on ARCH_ROCKCHIP
886 select DEBUG_UART_8250
888 Say Y here if you want kernel low-level debugging support
889 on Rockchip based platforms.
891 config DEBUG_RK3X_UART2
892 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
893 depends on ARCH_ROCKCHIP
894 select DEBUG_UART_8250
896 Say Y here if you want kernel low-level debugging support
897 on Rockchip based platforms.
899 config DEBUG_RK3X_UART3
900 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
901 depends on ARCH_ROCKCHIP
902 select DEBUG_UART_8250
904 Say Y here if you want kernel low-level debugging support
905 on Rockchip based platforms.
907 config DEBUG_RK32_UART2
908 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
909 depends on ARCH_ROCKCHIP
910 select DEBUG_UART_8250
912 Say Y here if you want kernel low-level debugging support
913 on Rockchip RK32xx based platforms.
915 config DEBUG_R7S72100_SCIF2
916 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
917 depends on ARCH_R7S72100
919 Say Y here if you want kernel low-level debugging support
920 via SCIF2 on Renesas RZ/A1H (R7S72100).
922 config DEBUG_RCAR_GEN1_SCIF0
923 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
924 depends on ARCH_R8A7778
926 Say Y here if you want kernel low-level debugging support
927 via SCIF0 on Renesas R-Car M1A (R8A7778).
929 config DEBUG_RCAR_GEN1_SCIF2
930 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
931 depends on ARCH_R8A7779
933 Say Y here if you want kernel low-level debugging support
934 via SCIF2 on Renesas R-Car H1 (R8A7779).
936 config DEBUG_RCAR_GEN2_SCIF0
937 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
938 depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \
939 ARCH_R8A7792 || ARCH_R8A7793
941 Say Y here if you want kernel low-level debugging support
942 via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790),
943 M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
945 config DEBUG_RCAR_GEN2_SCIF1
946 bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
947 depends on ARCH_R8A77470
949 Say Y here if you want kernel low-level debugging support
950 via SCIF1 on Renesas RZ/G1C (R8A77470).
952 config DEBUG_RCAR_GEN2_SCIF2
953 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
954 depends on ARCH_R8A7794
956 Say Y here if you want kernel low-level debugging support
957 via SCIF2 on Renesas R-Car E2 (R8A7794).
959 config DEBUG_RCAR_GEN2_SCIF4
960 bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
961 depends on ARCH_R8A7745
963 Say Y here if you want kernel low-level debugging support
964 via SCIF4 on Renesas RZ/G1E (R8A7745).
966 config DEBUG_RMOBILE_SCIFA0
967 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
968 depends on ARCH_R8A73A4
970 Say Y here if you want kernel low-level debugging support
971 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
973 config DEBUG_RMOBILE_SCIFA1
974 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
975 depends on ARCH_R8A7740
977 Say Y here if you want kernel low-level debugging support
978 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
980 config DEBUG_RMOBILE_SCIFA4
981 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
982 depends on ARCH_SH73A0
984 Say Y here if you want kernel low-level debugging support
985 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
987 config DEBUG_S3C_UART0
988 depends on PLAT_SAMSUNG
989 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
990 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
991 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
992 select DEBUG_S5PV210_UART if ARCH_S5PV210
993 bool "Use Samsung S3C UART 0 for low-level debug"
995 Say Y here if you want the debug print routines to direct
996 their output to UART 0. The port must have been initialised
997 by the boot-loader before use.
999 config DEBUG_S3C_UART1
1000 depends on PLAT_SAMSUNG
1001 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1002 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1003 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1004 select DEBUG_S5PV210_UART if ARCH_S5PV210
1005 bool "Use Samsung S3C UART 1 for low-level debug"
1007 Say Y here if you want the debug print routines to direct
1008 their output to UART 1. The port must have been initialised
1009 by the boot-loader before use.
1011 config DEBUG_S3C_UART2
1012 depends on PLAT_SAMSUNG
1013 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1014 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
1015 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1016 select DEBUG_S5PV210_UART if ARCH_S5PV210
1017 bool "Use Samsung S3C UART 2 for low-level debug"
1019 Say Y here if you want the debug print routines to direct
1020 their output to UART 2. The port must have been initialised
1021 by the boot-loader before use.
1023 config DEBUG_S3C_UART3
1024 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
1025 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
1026 select DEBUG_S3C64XX_UART if ARCH_S3C64XX
1027 select DEBUG_S5PV210_UART if ARCH_S5PV210
1028 bool "Use Samsung S3C UART 3 for low-level debug"
1030 Say Y here if you want the debug print routines to direct
1031 their output to UART 3. The port must have been initialised
1032 by the boot-loader before use.
1034 config DEBUG_S3C2410_UART0
1035 depends on ARCH_S3C24XX
1036 select DEBUG_S3C2410_UART
1037 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
1039 Say Y here if you want the debug print routines to direct
1040 their output to UART 0. The port must have been initialised
1041 by the boot-loader before use.
1043 config DEBUG_S3C2410_UART1
1044 depends on ARCH_S3C24XX
1045 select DEBUG_S3C2410_UART
1046 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
1048 Say Y here if you want the debug print routines to direct
1049 their output to UART 1. The port must have been initialised
1050 by the boot-loader before use.
1052 config DEBUG_S3C2410_UART2
1053 depends on ARCH_S3C24XX
1054 select DEBUG_S3C2410_UART
1055 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
1057 Say Y here if you want the debug print routines to direct
1058 their output to UART 2. The port must have been initialised
1059 by the boot-loader before use.
1062 depends on ARCH_SA1100
1063 bool "Use SA1100 UARTs for low-level debug"
1065 Say Y here if you want kernel low-level debugging support
1066 on SA-11x0 UART ports. The kernel will check for the first
1067 enabled UART in a sequence 3-1-2.
1069 config DEBUG_SOCFPGA_UART0
1070 depends on ARCH_SOCFPGA
1071 bool "Use SOCFPGA UART0 for low-level debug"
1072 select DEBUG_UART_8250
1074 Say Y here if you want kernel low-level debugging support
1075 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1077 config DEBUG_SOCFPGA_UART1
1078 depends on ARCH_SOCFPGA
1079 bool "Use SOCFPGA UART1 for low-level debug"
1080 select DEBUG_UART_8250
1082 Say Y here if you want kernel low-level debugging support
1083 on SOCFPGA(Arria 10) based platforms.
1086 config DEBUG_SUN9I_UART0
1087 bool "Kernel low-level debugging messages via sun9i UART0"
1088 depends on MACH_SUN9I
1089 select DEBUG_UART_8250
1091 Say Y here if you want kernel low-level debugging support
1092 on Allwinner A80 based platforms on the UART0.
1094 config DEBUG_SUNXI_UART0
1095 bool "Kernel low-level debugging messages via sunXi UART0"
1096 depends on ARCH_SUNXI
1097 select DEBUG_UART_8250
1099 Say Y here if you want kernel low-level debugging support
1100 on Allwinner A1X based platforms on the UART0.
1102 config DEBUG_SUNXI_UART1
1103 bool "Kernel low-level debugging messages via sunXi UART1"
1104 depends on ARCH_SUNXI
1105 select DEBUG_UART_8250
1107 Say Y here if you want kernel low-level debugging support
1108 on Allwinner A1X based platforms on the UART1.
1110 config DEBUG_SUNXI_R_UART
1111 bool "Kernel low-level debugging messages via sunXi R_UART"
1112 depends on MACH_SUN6I || MACH_SUN8I
1113 select DEBUG_UART_8250
1115 Say Y here if you want kernel low-level debugging support
1116 on Allwinner A31/A23 based platforms on the R_UART.
1118 config DEBUG_SIRFPRIMA2_UART1
1119 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1120 depends on ARCH_PRIMA2
1121 select DEBUG_SIRFSOC_UART
1123 Say Y here if you want the debug print routines to direct
1124 their output to the uart1 port on SiRFprimaII devices.
1126 config DEBUG_SIRFATLAS7_UART0
1127 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1128 depends on ARCH_ATLAS7
1129 select DEBUG_SIRFSOC_UART
1131 Say Y here if you want the debug print routines to direct
1132 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1133 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1134 debug port can be very useful.
1136 config DEBUG_SIRFATLAS7_UART1
1137 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1138 depends on ARCH_ATLAS7
1139 select DEBUG_SIRFSOC_UART
1141 Say Y here if you want the debug print routines to direct
1142 their output to the uart1 port on SiRFATLAS7 devices.
1144 config DEBUG_SPEAR3XX
1145 bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1146 depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
1147 select DEBUG_UART_PL01X
1149 Say Y here if you want kernel low-level debugging support
1150 on ST SPEAr based platforms.
1152 config DEBUG_SPEAR13XX
1153 bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1154 depends on ARCH_SPEAR13XX
1155 select DEBUG_UART_PL01X
1157 Say Y here if you want kernel low-level debugging support
1158 on ST SPEAr13xx based platforms.
1160 config STIH41X_DEBUG_ASC2
1161 bool "Use StiH415/416 ASC2 UART for low-level debug"
1163 select DEBUG_STI_UART
1165 Say Y here if you want kernel low-level debugging support
1166 on STiH415/416 based platforms like b2000, which has
1167 default UART wired up to ASC2.
1171 config STIH41X_DEBUG_SBC_ASC1
1172 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1174 select DEBUG_STI_UART
1176 Say Y here if you want kernel low-level debugging support
1177 on STiH415/416 based platforms like b2020. which has
1178 default UART wired up to SBC ASC1.
1182 config TEGRA_DEBUG_UART_AUTO_ODMDATA
1183 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1184 depends on ARCH_TEGRA
1185 select DEBUG_TEGRA_UART
1187 Automatically determines which UART to use for low-level
1188 debug based on the ODMDATA value. This value is part of
1189 the BCT, and is written to the boot memory device using
1190 nvflash, or other flashing tool. When bits 19:18 are 3,
1191 then bits 17:15 indicate which UART to use; 0/1/2/3/4
1194 config TEGRA_DEBUG_UARTA
1195 bool "Kernel low-level debugging messages via Tegra UART A"
1196 depends on ARCH_TEGRA
1197 select DEBUG_TEGRA_UART
1199 Say Y here if you want kernel low-level debugging support
1200 on Tegra based platforms.
1202 config TEGRA_DEBUG_UARTB
1203 bool "Kernel low-level debugging messages via Tegra UART B"
1204 depends on ARCH_TEGRA
1205 select DEBUG_TEGRA_UART
1207 Say Y here if you want kernel low-level debugging support
1208 on Tegra based platforms.
1210 config TEGRA_DEBUG_UARTC
1211 bool "Kernel low-level debugging messages via Tegra UART C"
1212 depends on ARCH_TEGRA
1213 select DEBUG_TEGRA_UART
1215 Say Y here if you want kernel low-level debugging support
1216 on Tegra based platforms.
1218 config TEGRA_DEBUG_UARTD
1219 bool "Kernel low-level debugging messages via Tegra UART D"
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_UARTE
1227 bool "Kernel low-level debugging messages via Tegra UART E"
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 DEBUG_U300_UART
1235 bool "Kernel low-level debugging messages via U300 UART0"
1236 depends on ARCH_U300
1237 select DEBUG_UART_PL01X
1239 Say Y here if you want the debug print routines to direct
1240 their output to the uart port on U300 devices.
1242 config DEBUG_UX500_UART
1243 depends on ARCH_U8500
1244 bool "Use Ux500 UART for low-level debug"
1246 Say Y here if you want kernel low-level debugging support
1247 on Ux500 based platforms.
1249 config DEBUG_VERSATILE
1250 bool "Kernel low-level debugging messages via ARM Versatile UART"
1251 depends on ARCH_VERSATILE
1252 select DEBUG_UART_PL01X
1254 Say Y here if you want kernel low-level debugging support
1255 on ARM Versatile platforms.
1257 config DEBUG_VEXPRESS_UART0_DETECT
1258 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1259 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1261 This option enables a simple heuristic which tries to determine
1262 the motherboard's memory map variant (original or RS1) and then
1263 choose the relevant UART0 base address.
1265 Note that this will only work with standard A-class core tiles,
1266 and may fail with non-standard SMM or custom software models.
1268 config DEBUG_VEXPRESS_UART0_CA9
1269 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1270 depends on ARCH_VEXPRESS
1271 select DEBUG_UART_PL01X
1273 This option selects UART0 at 0x10009000. Except for custom models,
1274 this applies only to the V2P-CA9 tile.
1276 config DEBUG_VEXPRESS_UART0_RS1
1277 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1278 depends on ARCH_VEXPRESS
1279 select DEBUG_UART_PL01X
1281 This option selects UART0 at 0x1c090000. This applies to most
1282 of the tiles using the RS1 memory map, including all new A-class
1283 core tiles, FPGA-based SMMs and software models.
1285 config DEBUG_VEXPRESS_UART0_CRX
1286 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1287 depends on ARCH_VEXPRESS && !MMU
1288 select DEBUG_UART_PL01X
1290 This option selects UART0 at 0xb0090000. This is appropriate for
1291 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1293 config DEBUG_VF_UART
1295 depends on SOC_VF610
1297 Say Y here if you want kernel low-level debugging support
1298 on Vybrid based platforms.
1300 config DEBUG_VT8500_UART0
1301 bool "Use UART0 on VIA/Wondermedia SoCs"
1302 depends on ARCH_VT8500
1304 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1305 devices, including VT8500, WM8505, WM8650 and WM8850.
1308 bool "Use ZTE ZX UART"
1309 select DEBUG_UART_PL01X
1312 Say Y here if you are enabling ZTE ZX296702 SOC and need
1315 This option is preferred over the platform specific
1316 options; the platform specific options are deprecated
1317 and will be soon removed.
1319 config DEBUG_ZYNQ_UART0
1320 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1321 depends on ARCH_ZYNQ
1323 Say Y here if you want the debug print routines to direct
1324 their output to UART0 on the Zynq platform.
1326 config DEBUG_ZYNQ_UART1
1327 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1328 depends on ARCH_ZYNQ
1330 Say Y here if you want the debug print routines to direct
1331 their output to UART1 on the Zynq platform.
1333 If you have a ZC702 board and want early boot messages to
1334 appear on the USB serial adaptor, select this option.
1337 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1339 Say Y here if you want the debug print routines to direct
1340 their output to the EmbeddedICE macrocell's DCC channel using
1341 co-processor 14. This is known to work on the ARM9 style ICE
1342 channel and on the XScale with the PEEDI.
1344 Note that the system will appear to hang during boot if there
1345 is nothing connected to read from the DCC.
1347 config DEBUG_SEMIHOSTING
1348 bool "Kernel low-level debug output via semihosting I/O"
1350 Semihosting enables code running on an ARM target to use
1351 the I/O facilities on a host debugger/emulator through a
1352 simple SVC call. The host debugger or emulator must have
1353 semihosting enabled for the special svc call to be trapped
1354 otherwise the kernel will crash.
1356 This is known to work with OpenOCD, as well as
1357 ARM's Fast Models, or any other controlling environment
1358 that implements semihosting.
1360 For more details about semihosting, please see
1361 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1363 config DEBUG_LL_UART_8250
1364 bool "Kernel low-level debugging via 8250 UART"
1366 Say Y here if you wish the debug print routes to direct
1367 their output to an 8250 UART. You can use this option
1368 to provide the parameters for the 8250 UART rather than
1369 selecting one of the platform specific options above if
1370 you know the parameters for the port.
1372 This option is preferred over the platform specific
1373 options; the platform specific options are deprecated
1374 and will be soon removed.
1376 config DEBUG_LL_UART_EFM32
1377 bool "Kernel low-level debugging via efm32 UART"
1378 depends on ARCH_EFM32
1380 Say Y here if you want the debug print routines to direct
1381 their output to an UART or USART port on efm32 based
1382 machines. Use the following addresses for DEBUG_UART_PHYS:
1390 config DEBUG_LL_UART_PL01X
1391 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1393 Say Y here if you wish the debug print routes to direct
1394 their output to a PL01x Primecell UART. You can use
1395 this option to provide the parameters for the UART
1396 rather than selecting one of the platform specific
1397 options above if you know the parameters for the port.
1399 This option is preferred over the platform specific
1400 options; the platform specific options are deprecated
1401 and will be soon removed.
1405 config DEBUG_AT91_UART
1407 depends on ARCH_AT91
1409 config DEBUG_EXYNOS_UART
1412 config DEBUG_S3C2410_UART
1414 select DEBUG_S3C24XX_UART
1416 config DEBUG_S3C24XX_UART
1419 config DEBUG_S3C64XX_UART
1422 config DEBUG_S5PV210_UART
1425 config DEBUG_OMAP2PLUS_UART
1427 depends on ARCH_OMAP2PLUS
1429 config DEBUG_IMX_UART_PORT
1430 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1431 DEBUG_IMX25_UART || \
1432 DEBUG_IMX21_IMX27_UART || \
1433 DEBUG_IMX31_UART || \
1434 DEBUG_IMX35_UART || \
1435 DEBUG_IMX50_UART || \
1436 DEBUG_IMX51_UART || \
1437 DEBUG_IMX53_UART || \
1438 DEBUG_IMX6Q_UART || \
1439 DEBUG_IMX6SL_UART || \
1440 DEBUG_IMX6SX_UART || \
1441 DEBUG_IMX6UL_UART || \
1446 Choose UART port on which kernel low-level debug messages
1449 config DEBUG_VF_UART_PORT
1450 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1453 depends on SOC_VF610
1455 Choose UART port on which kernel low-level debug messages
1458 config DEBUG_TEGRA_UART
1460 depends on ARCH_TEGRA
1462 config DEBUG_STI_UART
1466 config DEBUG_SIRFSOC_UART
1468 depends on ARCH_SIRF
1470 config DEBUG_LL_INCLUDE
1472 default "debug/sa1100.S" if DEBUG_SA1100
1473 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
1474 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1475 default "debug/at91.S" if DEBUG_AT91_UART
1476 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1477 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1478 default "debug/dc21285.S" if DEBUG_DC21285_PORT
1479 default "debug/meson.S" if DEBUG_MESON_UARTAO
1480 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1481 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1482 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1483 default "debug/icedcc.S" if DEBUG_ICEDCC
1484 default "debug/imx.S" if DEBUG_IMX1_UART || \
1485 DEBUG_IMX25_UART || \
1486 DEBUG_IMX21_IMX27_UART || \
1487 DEBUG_IMX31_UART || \
1488 DEBUG_IMX35_UART || \
1489 DEBUG_IMX50_UART || \
1490 DEBUG_IMX51_UART || \
1491 DEBUG_IMX53_UART ||\
1492 DEBUG_IMX6Q_UART || \
1493 DEBUG_IMX6SL_UART || \
1494 DEBUG_IMX6SX_UART || \
1495 DEBUG_IMX6UL_UART || \
1497 default "debug/ks8695.S" if DEBUG_KS8695_UART
1498 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1499 default "debug/netx.S" if DEBUG_NETX_UART
1500 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1501 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1502 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1503 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1504 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1505 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1506 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1507 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1508 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1509 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1510 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1511 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
1512 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1513 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1514 default "debug/sti.S" if DEBUG_STI_UART
1515 default "debug/tegra.S" if DEBUG_TEGRA_UART
1516 default "debug/ux500.S" if DEBUG_UX500_UART
1517 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1518 default "debug/vf.S" if DEBUG_VF_UART
1519 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1520 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1521 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
1522 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1523 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
1524 default "mach/debug-macro.S"
1526 # Compatibility options for PL01x
1527 config DEBUG_UART_PL01X
1530 # Compatibility options for 8250
1531 config DEBUG_UART_8250
1532 def_bool ARCH_EBSA110 || \
1533 ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
1536 config DEBUG_UART_PHYS
1537 hex "Physical base address of debug UART"
1538 default 0x00100a00 if DEBUG_NETX_UART
1539 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1540 default 0x01c28000 if DEBUG_SUNXI_UART0
1541 default 0x01c28400 if DEBUG_SUNXI_UART1
1542 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1543 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1544 default 0x01f02800 if DEBUG_SUNXI_R_UART
1545 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1546 default 0x02531000 if DEBUG_KEYSTONE_UART1
1547 default 0x03010fe0 if ARCH_RPC
1548 default 0x07000000 if DEBUG_SUN9I_UART0
1549 default 0x09405000 if DEBUG_ZTE_ZX
1550 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1551 DEBUG_VEXPRESS_UART0_CA9
1552 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1553 default 0x10124000 if DEBUG_RK3X_UART0
1554 default 0x10126000 if DEBUG_RK3X_UART1
1555 default 0x101f1000 if DEBUG_VERSATILE
1556 default 0x101fb000 if DEBUG_NOMADIK_UART
1557 default 0x10210000 if DEBUG_RV1108_UART2
1558 default 0x10220000 if DEBUG_RV1108_UART1
1559 default 0x10230000 if DEBUG_RV1108_UART0
1560 default 0x11002000 if DEBUG_MT8127_UART0
1561 default 0x11006000 if DEBUG_MT6589_UART0
1562 default 0x11009000 if DEBUG_MT8135_UART3
1563 default 0x16000000 if DEBUG_INTEGRATOR
1564 default 0x18000300 if DEBUG_BCM_5301X
1565 default 0x18000400 if DEBUG_BCM_HR2
1566 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1567 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1568 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1569 default 0x20001000 if DEBUG_HIP01_UART
1570 default 0x20060000 if DEBUG_RK29_UART0
1571 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1572 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1573 default 0x20201000 if DEBUG_BCM2835
1574 default 0x3f201000 if DEBUG_BCM2836
1575 default 0x3e000000 if DEBUG_BCM_KONA_UART
1576 default 0x4000e400 if DEBUG_LL_UART_EFM32
1577 default 0x40028000 if DEBUG_AT91_SAMV7_USART1
1578 default 0x40081000 if DEBUG_LPC18XX_UART0
1579 default 0x40090000 if DEBUG_LPC32XX
1580 default 0x40100000 if DEBUG_PXA_UART1
1581 default 0x42000000 if DEBUG_GEMINI
1582 default 0x44e09000 if DEBUG_AM33XXUART1
1583 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1584 default 0x48022000 if DEBUG_TI81XXUART2
1585 default 0x48024000 if DEBUG_TI81XXUART3
1586 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1587 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1588 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1589 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1590 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1591 default 0x49020000 if DEBUG_OMAP3UART3
1592 default 0x49042000 if DEBUG_OMAP3UART4
1593 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1594 DEBUG_S3C2410_UART0)
1595 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1596 DEBUG_S3C2410_UART1)
1597 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1598 DEBUG_S3C2410_UART2)
1599 default 0x78000000 if DEBUG_CNS3XXX
1600 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
1601 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1602 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1603 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1604 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1605 default 0x80010000 if DEBUG_ASM9260_UART
1606 default 0x80070000 if DEBUG_IMX23_UART
1607 default 0x80074000 if DEBUG_IMX28_UART
1608 default 0x80230000 if DEBUG_PICOXCELL_UART
1609 default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
1610 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1611 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1612 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1613 default 0xc0013000 if DEBUG_U300_UART
1614 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1615 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1616 default 0xd0000000 if DEBUG_SPEAR3XX
1617 default 0xd0012000 if DEBUG_MVEBU_UART0
1618 default 0xc81004c0 if DEBUG_MESON_UARTAO
1619 default 0xd4017000 if DEBUG_MMP_UART2
1620 default 0xd4018000 if DEBUG_MMP_UART3
1621 default 0xe0000000 if DEBUG_SPEAR13XX
1622 default 0xe4007000 if DEBUG_HIP04_UART
1623 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1624 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1625 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1626 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1627 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1628 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
1629 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
1630 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1631 default 0xf0000be0 if ARCH_EBSA110
1632 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1633 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1634 default 0xf7fc9000 if DEBUG_BERLIN_UART
1635 default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
1636 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1637 default 0xf991e000 if DEBUG_QCOM_UARTDM
1638 default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
1639 default 0xfcb00000 if DEBUG_HI3620_UART
1640 default 0xfd883000 if DEBUG_ALPINE_UART0
1641 default 0xfe800000 if ARCH_IOP32X
1642 default 0xff690000 if DEBUG_RK32_UART2
1643 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1644 default 0xffc02100 if DEBUG_SOCFPGA_UART1
1645 default 0xffd82340 if ARCH_IOP13XX
1646 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1647 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1648 default 0xfff36000 if DEBUG_HIGHBANK_UART
1649 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1650 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1651 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1652 default 0xfffe8600 if DEBUG_BCM63XX_UART
1653 default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
1654 default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
1655 default 0xfffff700 if ARCH_IOP33X
1656 depends on ARCH_EP93XX || \
1657 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1658 DEBUG_LL_UART_EFM32 || \
1659 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1660 DEBUG_NETX_UART || \
1661 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1662 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1663 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
1664 DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
1665 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1666 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1667 DEBUG_S3C64XX_UART || \
1668 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1669 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1672 config DEBUG_UART_VIRT
1673 hex "Virtual base address of debug UART"
1674 default 0xc881f000 if DEBUG_RV1108_UART2
1675 default 0xc8821000 if DEBUG_RV1108_UART1
1676 default 0xc8912000 if DEBUG_RV1108_UART0
1677 default 0xe0000a00 if DEBUG_NETX_UART
1678 default 0xe0010fe0 if ARCH_RPC
1679 default 0xf0000be0 if ARCH_EBSA110
1680 default 0xf0010000 if DEBUG_ASM9260_UART
1681 default 0xf01fb000 if DEBUG_NOMADIK_UART
1682 default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
1683 default 0xf1000300 if DEBUG_BCM_5301X
1684 default 0xf1000400 if DEBUG_BCM_HR2
1685 default 0xf1002000 if DEBUG_MT8127_UART0
1686 default 0xf1006000 if DEBUG_MT6589_UART0
1687 default 0xf1009000 if DEBUG_MT8135_UART3
1688 default 0xf11f1000 if DEBUG_VERSATILE
1689 default 0xf1600000 if DEBUG_INTEGRATOR
1690 default 0xf1c28000 if DEBUG_SUNXI_UART0
1691 default 0xf1c28400 if DEBUG_SUNXI_UART1
1692 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1693 default 0xf31004c0 if DEBUG_MESON_UARTAO
1694 default 0xf4090000 if DEBUG_LPC32XX
1695 default 0xf4200000 if DEBUG_GEMINI
1696 default 0xf6200000 if DEBUG_PXA_UART1
1697 default 0xf7000000 if DEBUG_SUN9I_UART0
1698 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
1699 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1700 DEBUG_S3C2410_UART0)
1701 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
1702 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
1703 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
1704 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1705 DEBUG_S3C2410_UART1)
1706 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1707 DEBUG_S3C2410_UART2)
1708 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
1709 default 0xf7fc9000 if DEBUG_BERLIN_UART
1710 default 0xf8007000 if DEBUG_HIP04_UART
1711 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1712 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1713 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
1714 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1715 default 0xf9e09000 if DEBUG_AM33XXUART1
1716 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
1717 default 0xfa022000 if DEBUG_TI81XXUART2
1718 default 0xfa024000 if DEBUG_TI81XXUART3
1719 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
1720 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
1721 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
1722 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1723 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1724 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1725 default 0xfb002000 if DEBUG_CNS3XXX
1726 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1727 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1728 default 0xfb020000 if DEBUG_OMAP3UART3
1729 default 0xfb042000 if DEBUG_OMAP3UART4
1730 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1731 default 0xfc705000 if DEBUG_ZTE_ZX
1732 default 0xfcfe8600 if DEBUG_BCM63XX_UART
1733 default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
1734 default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
1735 default 0xfd883000 if DEBUG_ALPINE_UART0
1736 default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
1737 default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
1738 default 0xfe017000 if DEBUG_MMP_UART2
1739 default 0xfe018000 if DEBUG_MMP_UART3
1740 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1741 default 0xfe230000 if DEBUG_PICOXCELL_UART
1742 default 0xfe300000 if DEBUG_BCM_KONA_UART
1743 default 0xfe800000 if ARCH_IOP32X
1744 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1745 default 0xfeb24000 if DEBUG_RK3X_UART0
1746 default 0xfeb26000 if DEBUG_RK3X_UART1
1747 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1748 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1749 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1750 default 0xfec02100 if DEBUG_SOCFPGA_UART1
1751 default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
1752 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1753 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1754 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1755 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1756 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1757 default 0xfec90000 if DEBUG_RK32_UART2
1758 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1759 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1760 default 0xfed60000 if DEBUG_RK29_UART0
1761 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1762 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1763 default 0xfedc0000 if DEBUG_EP93XX
1764 default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
1765 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1766 default 0xfee82340 if ARCH_IOP13XX
1767 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1768 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1769 default 0xfef36000 if DEBUG_HIGHBANK_UART
1770 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1771 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1772 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1773 default 0xfefff700 if ARCH_IOP33X
1774 default 0xff003000 if DEBUG_U300_UART
1775 default 0xffd01000 if DEBUG_HIP01_UART
1776 default DEBUG_UART_PHYS if !MMU
1777 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1778 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1779 DEBUG_NETX_UART || \
1780 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1781 DEBUG_S3C64XX_UART || \
1782 DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
1783 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
1786 config DEBUG_UART_8250_SHIFT
1787 int "Register offset shift for the 8250 debug UART"
1788 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1789 default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
1790 DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
1794 config DEBUG_UART_8250_WORD
1795 bool "Use 32-bit accesses for 8250 UART"
1796 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1797 depends on DEBUG_UART_8250_SHIFT >= 2
1798 default y if DEBUG_PICOXCELL_UART || \
1799 DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_UART1 || \
1800 DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
1801 DEBUG_ALPINE_UART0 || \
1802 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1803 DEBUG_DAVINCI_DA8XX_UART2 || \
1804 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
1806 config DEBUG_UART_8250_PALMCHIP
1807 bool "8250 UART is Palmchip BK-310x"
1808 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1810 Palmchip provides a UART implementation compatible with 16550
1811 except for having a different register layout. Say Y here if
1812 the debug UART is of this type.
1814 config DEBUG_UART_8250_FLOW_CONTROL
1815 bool "Enable flow control for 8250 UART"
1816 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1817 default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
1819 config DEBUG_UNCOMPRESS
1820 bool "Enable decompressor debugging via DEBUG_LL output"
1821 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1822 depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1823 (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
1826 This option influences the normal decompressor output for
1827 multiplatform kernels. Normally, multiplatform kernels disable
1828 decompressor output because it is not possible to know where to
1829 send the decompressor output.
1831 When this option is set, the selected DEBUG_LL output method
1832 will be re-used for normal decompressor output on multiplatform
1836 config UNCOMPRESS_INCLUDE
1838 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1839 PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
1840 default "mach/uncompress.h"
1846 Say Y here if you want to have an early console using the
1847 kernel low-level debugging functions. Add earlyprintk to your
1848 kernel parameters to enable this console.
1850 config ARM_KPROBES_TEST
1851 tristate "Kprobes test module"
1852 depends on KPROBES && MODULES
1854 Perform tests of kprobes API and instruction set simulation.
1856 config PID_IN_CONTEXTIDR
1857 bool "Write the current PID to the CONTEXTIDR register"
1858 depends on CPU_COPY_V6
1860 Enabling this option causes the kernel to write the current PID to
1861 the PROCID field of the CONTEXTIDR register, at the expense of some
1862 additional instructions during context switch. Say Y here only if you
1863 are planning to use hardware trace tools with this kernel.
1865 source "drivers/hwtracing/coresight/Kconfig"