3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
18 bool "Filter access to /dev/mem"
21 If this option is disabled, you allow userspace (root) access to all
22 of memory, including kernel and userspace memory. Accidental
23 access to this is obviously disastrous, but specific access can
24 be used by people debugging the kernel.
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
31 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
32 # If you know what you are doing and are willing to live without stack
33 # traces, you can get a slightly smaller kernel by setting this option to
34 # n, but then RMK will have to kill you ;).
37 depends on !THUMB2_KERNEL
38 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
40 If you say N here, the resulting kernel will be slightly smaller and
41 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
42 when a problem occurs with the kernel, the information that is
43 reported is severely limited.
46 bool "Enable stack unwinding support (EXPERIMENTAL)"
50 This option enables stack unwinding support in the kernel
51 using the information automatically generated by the
52 compiler. The resulting kernel image is slightly bigger but
53 the performance is not affected. Currently, this feature
54 only works with EABI compilers. If unsure say Y.
58 depends on FUNCTION_TRACER && FRAME_POINTER
62 bool "Verbose user fault messages"
64 When a user program crashes due to an exception, the kernel can
65 print a brief message explaining what the problem was. This is
66 sometimes helpful for debugging but serves no purpose on a
67 production system. Most people should say N here.
69 In addition, you need to pass user_debug=N on the kernel command
70 line to enable this feature. N consists of the sum of:
72 1 - undefined instruction events
74 4 - invalid data aborts
78 # These options are only for real kernel hackers who want to get their hands dirty.
80 bool "Kernel low-level debugging functions (read help!)"
81 depends on DEBUG_KERNEL
83 Say Y here to include definitions of printascii, printch, printhex
84 in the kernel. This is helpful if you are debugging code that
85 executes before the console is initialized.
87 Note that selecting this option will limit the kernel to a single
88 UART definition, as specified below. Attempting to boot the kernel
89 image on a different platform *will not work*, so this option should
90 not be enabled for kernels that are intended to be portable.
93 prompt "Kernel low-level debugging port"
96 config DEBUG_ASM9260_UART
97 bool "Kernel low-level debugging via asm9260 UART"
98 depends on MACH_ASM9260
100 Say Y here if you want the debug print routines to direct
101 their output to an UART or USART port on asm9260 based
104 DEBUG_UART_PHYS | DEBUG_UART_VIRT
106 0x80000000 | 0xf0000000 | UART0
107 0x80004000 | 0xf0004000 | UART1
108 0x80008000 | 0xf0008000 | UART2
109 0x8000c000 | 0xf000c000 | UART3
110 0x80010000 | 0xf0010000 | UART4
111 0x80014000 | 0xf0014000 | UART5
112 0x80018000 | 0xf0018000 | UART6
113 0x8001c000 | 0xf001c000 | UART7
114 0x80020000 | 0xf0020000 | UART8
115 0x80024000 | 0xf0024000 | UART9
117 config AT91_DEBUG_LL_DBGU0
118 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
119 select DEBUG_AT91_UART
121 depends on SOC_AT91RM9200 || SOC_AT91SAM9
123 config AT91_DEBUG_LL_DBGU1
124 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
125 select DEBUG_AT91_UART
127 depends on SOC_AT91SAM9 || SOC_SAMA5
129 config AT91_DEBUG_LL_DBGU2
130 bool "Kernel low-level debugging on sama5d4"
131 select DEBUG_AT91_UART
136 bool "Kernel low-level debugging on BCM2835 PL011 UART"
137 depends on ARCH_BCM2835
138 select DEBUG_UART_PL01X
140 config DEBUG_BCM_5301X
141 bool "Kernel low-level debugging on BCM5301X UART1"
142 depends on ARCH_BCM_5301X
143 select DEBUG_UART_8250
145 config DEBUG_BCM_KONA_UART
146 bool "Kernel low-level debugging messages via BCM KONA UART"
147 depends on ARCH_BCM_MOBILE
148 select DEBUG_UART_8250
150 Say Y here if you want kernel low-level debugging support
151 on Broadcom SoC platforms.
152 This low level debug works for Broadcom
153 mobile SoCs in the Kona family of chips (e.g. bcm28155,
157 bool "Kernel low-level debugging on BCM63XX UART"
158 depends on ARCH_BCM_63XX
159 select DEBUG_UART_BCM63XX
161 config DEBUG_BERLIN_UART
162 bool "Marvell Berlin SoC Debug UART"
163 depends on ARCH_BERLIN
164 select DEBUG_UART_8250
166 Say Y here if you want kernel low-level debugging support
167 on Marvell Berlin SoC based platforms.
169 config DEBUG_BRCMSTB_UART
170 bool "Use BRCMSTB UART for low-level debug"
171 depends on ARCH_BRCMSTB
172 select DEBUG_UART_8250
174 Say Y here if you want the debug print routines to direct
175 their output to the first serial port on these devices.
177 If you have a Broadcom STB chip and would like early print
178 messages to appear over the UART, select this option.
180 config DEBUG_CLPS711X_UART1
181 bool "Kernel low-level debugging messages via UART1"
182 depends on ARCH_CLPS711X
184 Say Y here if you want the debug print routines to direct
185 their output to the first serial port on these devices.
187 config DEBUG_CLPS711X_UART2
188 bool "Kernel low-level debugging messages via UART2"
189 depends on ARCH_CLPS711X
191 Say Y here if you want the debug print routines to direct
192 their output to the second serial port on these devices.
195 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
196 depends on ARCH_CNS3XXX
197 select DEBUG_UART_8250
199 Say Y here if you want the debug print routines to direct
200 their output to the CNS3xxx UART0.
202 config DEBUG_DAVINCI_DA8XX_UART1
203 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
204 depends on ARCH_DAVINCI_DA8XX
205 select DEBUG_UART_8250
207 Say Y here if you want the debug print routines to direct
208 their output to UART1 serial port on DaVinci DA8XX devices.
210 config DEBUG_DAVINCI_DA8XX_UART2
211 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
212 depends on ARCH_DAVINCI_DA8XX
213 select DEBUG_UART_8250
215 Say Y here if you want the debug print routines to direct
216 their output to UART2 serial port on DaVinci DA8XX devices.
218 config DEBUG_DAVINCI_DMx_UART0
219 bool "Kernel low-level debugging on DaVinci DMx using UART0"
220 depends on ARCH_DAVINCI_DMx
221 select DEBUG_UART_8250
223 Say Y here if you want the debug print routines to direct
224 their output to UART0 serial port on DaVinci DMx devices.
226 config DEBUG_ZYNQ_UART0
227 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
230 Say Y here if you want the debug print routines to direct
231 their output to UART0 on the Zynq platform.
233 config DEBUG_ZYNQ_UART1
234 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
237 Say Y here if you want the debug print routines to direct
238 their output to UART1 on the Zynq platform.
240 If you have a ZC702 board and want early boot messages to
241 appear on the USB serial adaptor, select this option.
243 config DEBUG_DC21285_PORT
244 bool "Kernel low-level debugging messages via footbridge serial port"
245 depends on FOOTBRIDGE
247 Say Y here if you want the debug print routines to direct
248 their output to the serial port in the DC21285 (Footbridge).
250 config DEBUG_DIGICOLOR_UA0
251 bool "Kernel low-level debugging messages via Digicolor UA0"
252 depends on ARCH_DIGICOLOR
254 Say Y here if you want the debug print routines to direct
255 their output to the UA0 serial port in the CX92755.
257 config DEBUG_FOOTBRIDGE_COM1
258 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
259 depends on FOOTBRIDGE
261 Say Y here if you want the debug print routines to direct
262 their output to the 8250 at PCI COM1.
264 config DEBUG_HI3620_UART
265 bool "Hisilicon HI3620 Debug UART"
266 depends on ARCH_HI3xxx
267 select DEBUG_UART_PL01X
269 Say Y here if you want kernel low-level debugging support
272 config DEBUG_HI3716_UART
273 bool "Hisilicon Hi3716 Debug UART"
274 depends on ARCH_HI3xxx
275 select DEBUG_UART_PL01X
277 Say Y here if you want kernel low-level debugging support
280 config DEBUG_HIGHBANK_UART
281 bool "Kernel low-level debugging messages via Highbank UART"
282 depends on ARCH_HIGHBANK
283 select DEBUG_UART_PL01X
285 Say Y here if you want the debug print routines to direct
286 their output to the UART on Highbank based devices.
288 config DEBUG_HIP01_UART
289 bool "Hisilicon Hip01 Debug UART"
290 depends on ARCH_HIP01
291 select DEBUG_UART_8250
293 Say Y here if you want kernel low-level debugging support
296 config DEBUG_HIP04_UART
297 bool "Hisilicon HiP04 Debug UART"
298 depends on ARCH_HIP04
299 select DEBUG_UART_8250
301 Say Y here if you want kernel low-level debugging support
304 config DEBUG_HIX5HD2_UART
305 bool "Hisilicon Hix5hd2 Debug UART"
306 depends on ARCH_HIX5HD2
307 select DEBUG_UART_PL01X
309 Say Y here if you want kernel low-level debugging support
312 config DEBUG_IMX1_UART
313 bool "i.MX1 Debug UART"
316 Say Y here if you want kernel low-level debugging support
319 config DEBUG_IMX23_UART
320 bool "i.MX23 Debug UART"
322 select DEBUG_UART_PL01X
324 Say Y here if you want kernel low-level debugging support
327 config DEBUG_IMX25_UART
328 bool "i.MX25 Debug UART"
331 Say Y here if you want kernel low-level debugging support
334 config DEBUG_IMX21_IMX27_UART
335 bool "i.MX21 and i.MX27 Debug UART"
336 depends on SOC_IMX21 || SOC_IMX27
338 Say Y here if you want kernel low-level debugging support
341 config DEBUG_IMX28_UART
342 bool "i.MX28 Debug UART"
344 select DEBUG_UART_PL01X
346 Say Y here if you want kernel low-level debugging support
349 config DEBUG_IMX31_UART
350 bool "i.MX31 Debug UART"
353 Say Y here if you want kernel low-level debugging support
356 config DEBUG_IMX35_UART
357 bool "i.MX35 Debug UART"
360 Say Y here if you want kernel low-level debugging support
363 config DEBUG_IMX50_UART
364 bool "i.MX50 Debug UART"
367 Say Y here if you want kernel low-level debugging support
370 config DEBUG_IMX51_UART
371 bool "i.MX51 Debug UART"
374 Say Y here if you want kernel low-level debugging support
377 config DEBUG_IMX53_UART
378 bool "i.MX53 Debug UART"
381 Say Y here if you want kernel low-level debugging support
384 config DEBUG_IMX6Q_UART
385 bool "i.MX6Q/DL Debug UART"
388 Say Y here if you want kernel low-level debugging support
391 config DEBUG_IMX6SL_UART
392 bool "i.MX6SL Debug UART"
393 depends on SOC_IMX6SL
395 Say Y here if you want kernel low-level debugging support
398 config DEBUG_IMX6SX_UART
399 bool "i.MX6SX Debug UART"
400 depends on SOC_IMX6SX
402 Say Y here if you want kernel low-level debugging support
405 config DEBUG_KEYSTONE_UART0
406 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
407 depends on ARCH_KEYSTONE
408 select DEBUG_UART_8250
410 Say Y here if you want the debug print routines to direct
411 their output to UART0 serial port on KEYSTONE2 devices.
413 config DEBUG_KEYSTONE_UART1
414 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
415 depends on ARCH_KEYSTONE
416 select DEBUG_UART_8250
418 Say Y here if you want the debug print routines to direct
419 their output to UART1 serial port on KEYSTONE2 devices.
421 config DEBUG_KS8695_UART
422 bool "KS8695 Debug UART"
423 depends on ARCH_KS8695
425 Say Y here if you want kernel low-level debugging support
428 config DEBUG_MESON_UARTAO
429 bool "Kernel low-level debugging via Meson6 UARTAO"
430 depends on ARCH_MESON
432 Say Y here if you want kernel low-lever debugging support
433 on Amlogic Meson6 based platforms on the UARTAO.
435 config DEBUG_MMP_UART2
436 bool "Kernel low-level debugging message via MMP UART2"
438 select DEBUG_UART_8250
440 Say Y here if you want kernel low-level debugging support
443 config DEBUG_MMP_UART3
444 bool "Kernel low-level debugging message via MMP UART3"
446 select DEBUG_UART_8250
448 Say Y here if you want kernel low-level debugging support
451 config DEBUG_MSM_UART
452 bool "Kernel low-level debugging messages via MSM UART"
455 Say Y here if you want the debug print routines to direct
456 their output to the serial port on MSM devices.
458 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT #
459 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
460 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
461 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
463 MSM7X30 0xaca00000 0xe1000000 UART1
464 MSM7X30 0xacb00000 0xe1000000 UART2
465 MSM7X30 0xacc00000 0xe1000000 UART3
467 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
468 options based on your needs.
470 config DEBUG_QCOM_UARTDM
471 bool "Kernel low-level debugging messages via QCOM UARTDM"
474 Say Y here if you want the debug print routines to direct
475 their output to the serial port on Qualcomm devices.
477 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
478 APQ8064 0x16640000 0xf0040000
479 APQ8084 0xf995e000 0xfa75e000
480 MSM8X60 0x19c40000 0xf0040000
481 MSM8960 0x16440000 0xf0040000
482 MSM8974 0xf991e000 0xfa71e000
484 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
485 options based on your needs.
487 config DEBUG_MVEBU_UART0
488 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
489 depends on ARCH_MVEBU
490 select DEBUG_UART_8250
492 Say Y here if you want kernel low-level debugging support
493 on MVEBU based platforms on UART0.
495 This option should be used with the old bootloaders
496 that left the internal registers mapped at
497 0xd0000000. As of today, this is the case on
498 platforms such as the Globalscale Mirabox or the
499 Plathome OpenBlocks AX3, when using the original
502 If the wrong DEBUG_MVEBU_UART* option is selected,
503 when u-boot hands over to the kernel, the system
504 silently crashes, with no serial output at all.
506 config DEBUG_MVEBU_UART0_ALTERNATE
507 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
508 depends on ARCH_MVEBU
509 select DEBUG_UART_8250
511 Say Y here if you want kernel low-level debugging support
512 on MVEBU based platforms on UART0.
514 This option should be used with the new bootloaders
515 that remap the internal registers at 0xf1000000.
517 If the wrong DEBUG_MVEBU_UART* option is selected,
518 when u-boot hands over to the kernel, the system
519 silently crashes, with no serial output at all.
521 config DEBUG_MVEBU_UART1_ALTERNATE
522 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
523 depends on ARCH_MVEBU
524 select DEBUG_UART_8250
526 Say Y here if you want kernel low-level debugging support
527 on MVEBU based platforms on UART1.
529 This option should be used with the new bootloaders
530 that remap the internal registers at 0xf1000000.
532 If the wrong DEBUG_MVEBU_UART* option is selected,
533 when u-boot hands over to the kernel, the system
534 silently crashes, with no serial output at all.
540 Say Y here if you want kernel low-level debugging support
541 on Vybrid based platforms.
543 config DEBUG_NETX_UART
544 bool "Kernel low-level debugging messages via NetX UART"
547 Say Y here if you want kernel low-level debugging support
548 on Hilscher NetX based platforms.
550 config DEBUG_NOMADIK_UART
551 bool "Kernel low-level debugging messages via NOMADIK UART"
552 depends on ARCH_NOMADIK
553 select DEBUG_UART_PL01X
555 Say Y here if you want kernel low-level debugging support
556 on NOMADIK based platforms.
558 config DEBUG_NSPIRE_CLASSIC_UART
559 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
560 depends on ARCH_NSPIRE
561 select DEBUG_UART_8250
563 Say Y here if you want kernel low-level debugging support
564 on TI-NSPIRE classic models.
566 config DEBUG_NSPIRE_CX_UART
567 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
568 depends on ARCH_NSPIRE
569 select DEBUG_UART_PL01X
571 Say Y here if you want kernel low-level debugging support
572 on TI-NSPIRE CX models.
574 config DEBUG_OMAP1UART1
575 bool "Kernel low-level debugging via OMAP1 UART1"
576 depends on ARCH_OMAP1
577 select DEBUG_UART_8250
579 Say Y here if you want kernel low-level debugging support
580 on OMAP1 based platforms (except OMAP730) on the UART1.
582 config DEBUG_OMAP1UART2
583 bool "Kernel low-level debugging via OMAP1 UART2"
584 depends on ARCH_OMAP1
585 select DEBUG_UART_8250
587 Say Y here if you want kernel low-level debugging support
588 on OMAP1 based platforms (except OMAP730) on the UART2.
590 config DEBUG_OMAP1UART3
591 bool "Kernel low-level debugging via OMAP1 UART3"
592 depends on ARCH_OMAP1
593 select DEBUG_UART_8250
595 Say Y here if you want kernel low-level debugging support
596 on OMAP1 based platforms (except OMAP730) on the UART3.
598 config DEBUG_OMAP2UART1
599 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
600 depends on ARCH_OMAP2PLUS
601 select DEBUG_OMAP2PLUS_UART
603 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
604 omap3 torpedo and 3530 lv som.
606 config DEBUG_OMAP2UART2
607 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
608 depends on ARCH_OMAP2PLUS
609 select DEBUG_OMAP2PLUS_UART
611 config DEBUG_OMAP2UART3
612 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
613 depends on ARCH_OMAP2PLUS
614 select DEBUG_OMAP2PLUS_UART
616 config DEBUG_OMAP3UART3
617 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
618 depends on ARCH_OMAP2PLUS
619 select DEBUG_OMAP2PLUS_UART
621 This covers at least cm_t3x, beagle, crane, devkit8000,
622 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
625 config DEBUG_OMAP4UART3
626 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
627 depends on ARCH_OMAP2PLUS
628 select DEBUG_OMAP2PLUS_UART
630 config DEBUG_OMAP3UART4
631 bool "Kernel low-level debugging messages via OMAP36XX UART4"
632 depends on ARCH_OMAP2PLUS
633 select DEBUG_OMAP2PLUS_UART
635 config DEBUG_OMAP4UART4
636 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
637 depends on ARCH_OMAP2PLUS
638 select DEBUG_OMAP2PLUS_UART
640 config DEBUG_OMAP7XXUART1
641 bool "Kernel low-level debugging via OMAP730 UART1"
642 depends on ARCH_OMAP730
643 select DEBUG_UART_8250
645 Say Y here if you want kernel low-level debugging support
646 on OMAP730 based platforms on the UART1.
648 config DEBUG_OMAP7XXUART2
649 bool "Kernel low-level debugging via OMAP730 UART2"
650 depends on ARCH_OMAP730
651 select DEBUG_UART_8250
653 Say Y here if you want kernel low-level debugging support
654 on OMAP730 based platforms on the UART2.
656 config DEBUG_OMAP7XXUART3
657 bool "Kernel low-level debugging via OMAP730 UART3"
658 depends on ARCH_OMAP730
659 select DEBUG_UART_8250
661 Say Y here if you want kernel low-level debugging support
662 on OMAP730 based platforms on the UART3.
664 config DEBUG_TI81XXUART1
665 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
666 depends on ARCH_OMAP2PLUS
667 select DEBUG_OMAP2PLUS_UART
669 config DEBUG_TI81XXUART2
670 bool "Kernel low-level debugging messages via TI81XX UART2"
671 depends on ARCH_OMAP2PLUS
672 select DEBUG_OMAP2PLUS_UART
674 config DEBUG_TI81XXUART3
675 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
676 depends on ARCH_OMAP2PLUS
677 select DEBUG_OMAP2PLUS_UART
679 config DEBUG_AM33XXUART1
680 bool "Kernel low-level debugging messages via AM33XX UART1"
681 depends on ARCH_OMAP2PLUS
682 select DEBUG_OMAP2PLUS_UART
684 config DEBUG_ZOOM_UART
685 bool "Kernel low-level debugging messages via Zoom2/3 UART"
686 depends on ARCH_OMAP2PLUS
687 select DEBUG_OMAP2PLUS_UART
689 config DEBUG_PICOXCELL_UART
690 depends on ARCH_PICOXCELL
691 bool "Use PicoXcell UART for low-level debug"
692 select DEBUG_UART_8250
694 Say Y here if you want kernel low-level debugging support
695 on PicoXcell based platforms.
697 config DEBUG_PXA_UART1
699 bool "Use PXA UART1 for low-level debug"
700 select DEBUG_UART_8250
702 Say Y here if you want kernel low-level debugging support
705 config DEBUG_REALVIEW_STD_PORT
706 bool "RealView Default UART"
707 depends on ARCH_REALVIEW
708 select DEBUG_UART_PL01X
710 Say Y here if you want the debug print routines to direct
711 their output to the serial port on RealView EB, PB11MP, PBA8
714 config DEBUG_REALVIEW_PB1176_PORT
715 bool "RealView PB1176 UART"
716 depends on MACH_REALVIEW_PB1176
717 select DEBUG_UART_PL01X
719 Say Y here if you want the debug print routines to direct
720 their output to the standard serial port on the RealView
723 config DEBUG_RK29_UART0
724 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
725 depends on ARCH_ROCKCHIP
726 select DEBUG_UART_8250
728 Say Y here if you want kernel low-level debugging support
729 on Rockchip based platforms.
731 config DEBUG_RK29_UART1
732 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
733 depends on ARCH_ROCKCHIP
734 select DEBUG_UART_8250
736 Say Y here if you want kernel low-level debugging support
737 on Rockchip based platforms.
739 config DEBUG_RK29_UART2
740 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
741 depends on ARCH_ROCKCHIP
742 select DEBUG_UART_8250
744 Say Y here if you want kernel low-level debugging support
745 on Rockchip based platforms.
747 config DEBUG_RK3X_UART0
748 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
749 depends on ARCH_ROCKCHIP
750 select DEBUG_UART_8250
752 Say Y here if you want kernel low-level debugging support
753 on Rockchip based platforms.
755 config DEBUG_RK3X_UART1
756 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
757 depends on ARCH_ROCKCHIP
758 select DEBUG_UART_8250
760 Say Y here if you want kernel low-level debugging support
761 on Rockchip based platforms.
763 config DEBUG_RK3X_UART2
764 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
765 depends on ARCH_ROCKCHIP
766 select DEBUG_UART_8250
768 Say Y here if you want kernel low-level debugging support
769 on Rockchip based platforms.
771 config DEBUG_RK3X_UART3
772 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
773 depends on ARCH_ROCKCHIP
774 select DEBUG_UART_8250
776 Say Y here if you want kernel low-level debugging support
777 on Rockchip based platforms.
779 config DEBUG_RK32_UART2
780 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
781 depends on ARCH_ROCKCHIP
782 select DEBUG_UART_8250
784 Say Y here if you want kernel low-level debugging support
785 on Rockchip RK32xx based platforms.
787 config DEBUG_R7S72100_SCIF2
788 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
789 depends on ARCH_R7S72100
791 Say Y here if you want kernel low-level debugging support
792 via SCIF2 on Renesas RZ/A1H (R7S72100).
794 config DEBUG_RCAR_GEN1_SCIF0
795 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
796 depends on ARCH_R8A7778
798 Say Y here if you want kernel low-level debugging support
799 via SCIF0 on Renesas R-Car M1A (R8A7778).
801 config DEBUG_RCAR_GEN1_SCIF2
802 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
803 depends on ARCH_R8A7779
805 Say Y here if you want kernel low-level debugging support
806 via SCIF2 on Renesas R-Car H1 (R8A7779).
808 config DEBUG_RCAR_GEN2_SCIF0
809 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
810 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
812 Say Y here if you want kernel low-level debugging support
813 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
816 config DEBUG_RCAR_GEN2_SCIF2
817 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
818 depends on ARCH_R8A7794
820 Say Y here if you want kernel low-level debugging support
821 via SCIF2 on Renesas R-Car E2 (R8A7794).
823 config DEBUG_RMOBILE_SCIFA0
824 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
825 depends on ARCH_R8A73A4 || ARCH_SH7372
827 Say Y here if you want kernel low-level debugging support
828 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
831 config DEBUG_RMOBILE_SCIFA1
832 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
833 depends on ARCH_R8A7740
835 Say Y here if you want kernel low-level debugging support
836 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
838 config DEBUG_RMOBILE_SCIFA4
839 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
840 depends on ARCH_SH73A0
842 Say Y here if you want kernel low-level debugging support
843 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
845 config DEBUG_S3C_UART0
846 depends on PLAT_SAMSUNG
847 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
848 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
849 select DEBUG_S5PV210_UART if ARCH_S5PV210
850 bool "Use Samsung S3C UART 0 for low-level debug"
852 Say Y here if you want the debug print routines to direct
853 their output to UART 0. The port must have been initialised
854 by the boot-loader before use.
856 config DEBUG_S3C_UART1
857 depends on PLAT_SAMSUNG
858 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
859 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
860 select DEBUG_S5PV210_UART if ARCH_S5PV210
861 bool "Use Samsung S3C UART 1 for low-level debug"
863 Say Y here if you want the debug print routines to direct
864 their output to UART 1. The port must have been initialised
865 by the boot-loader before use.
867 config DEBUG_S3C_UART2
868 depends on PLAT_SAMSUNG
869 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
870 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
871 select DEBUG_S5PV210_UART if ARCH_S5PV210
872 bool "Use Samsung S3C UART 2 for low-level debug"
874 Say Y here if you want the debug print routines to direct
875 their output to UART 2. The port must have been initialised
876 by the boot-loader before use.
878 config DEBUG_S3C_UART3
879 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
880 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
881 select DEBUG_S5PV210_UART if ARCH_S5PV210
882 bool "Use Samsung S3C UART 3 for low-level debug"
884 Say Y here if you want the debug print routines to direct
885 their output to UART 3. The port must have been initialised
886 by the boot-loader before use.
888 config DEBUG_S3C2410_UART0
889 depends on ARCH_S3C24XX
890 select DEBUG_S3C2410_UART
891 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
893 Say Y here if you want the debug print routines to direct
894 their output to UART 0. The port must have been initialised
895 by the boot-loader before use.
897 config DEBUG_S3C2410_UART1
898 depends on ARCH_S3C24XX
899 select DEBUG_S3C2410_UART
900 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
902 Say Y here if you want the debug print routines to direct
903 their output to UART 1. The port must have been initialised
904 by the boot-loader before use.
906 config DEBUG_S3C2410_UART2
907 depends on ARCH_S3C24XX
908 select DEBUG_S3C2410_UART
909 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
911 Say Y here if you want the debug print routines to direct
912 their output to UART 2. The port must have been initialised
913 by the boot-loader before use.
916 depends on ARCH_SA1100
917 bool "Use SA1100 UARTs for low-level debug"
919 Say Y here if you want kernel low-level debugging support
920 on SA-11x0 UART ports. The kernel will check for the first
921 enabled UART in a sequence 3-1-2.
923 config DEBUG_SOCFPGA_UART
924 depends on ARCH_SOCFPGA
925 bool "Use SOCFPGA UART for low-level debug"
926 select DEBUG_UART_8250
928 Say Y here if you want kernel low-level debugging support
929 on SOCFPGA based platforms.
931 config DEBUG_SUN9I_UART0
932 bool "Kernel low-level debugging messages via sun9i UART0"
933 depends on MACH_SUN9I
934 select DEBUG_UART_8250
936 Say Y here if you want kernel low-level debugging support
937 on Allwinner A80 based platforms on the UART0.
939 config DEBUG_SUNXI_UART0
940 bool "Kernel low-level debugging messages via sunXi UART0"
941 depends on ARCH_SUNXI
942 select DEBUG_UART_8250
944 Say Y here if you want kernel low-level debugging support
945 on Allwinner A1X based platforms on the UART0.
947 config DEBUG_SUNXI_UART1
948 bool "Kernel low-level debugging messages via sunXi UART1"
949 depends on ARCH_SUNXI
950 select DEBUG_UART_8250
952 Say Y here if you want kernel low-level debugging support
953 on Allwinner A1X based platforms on the UART1.
955 config DEBUG_SUNXI_R_UART
956 bool "Kernel low-level debugging messages via sunXi R_UART"
957 depends on MACH_SUN6I || MACH_SUN8I
958 select DEBUG_UART_8250
960 Say Y here if you want kernel low-level debugging support
961 on Allwinner A31/A23 based platforms on the R_UART.
963 config TEGRA_DEBUG_UART_AUTO_ODMDATA
964 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
965 depends on ARCH_TEGRA
966 select DEBUG_TEGRA_UART
968 Automatically determines which UART to use for low-level
969 debug based on the ODMDATA value. This value is part of
970 the BCT, and is written to the boot memory device using
971 nvflash, or other flashing tool. When bits 19:18 are 3,
972 then bits 17:15 indicate which UART to use; 0/1/2/3/4
975 config TEGRA_DEBUG_UARTA
976 bool "Kernel low-level debugging messages via Tegra UART A"
977 depends on ARCH_TEGRA
978 select DEBUG_TEGRA_UART
980 Say Y here if you want kernel low-level debugging support
981 on Tegra based platforms.
983 config TEGRA_DEBUG_UARTB
984 bool "Kernel low-level debugging messages via Tegra UART B"
985 depends on ARCH_TEGRA
986 select DEBUG_TEGRA_UART
988 Say Y here if you want kernel low-level debugging support
989 on Tegra based platforms.
991 config TEGRA_DEBUG_UARTC
992 bool "Kernel low-level debugging messages via Tegra UART C"
993 depends on ARCH_TEGRA
994 select DEBUG_TEGRA_UART
996 Say Y here if you want kernel low-level debugging support
997 on Tegra based platforms.
999 config TEGRA_DEBUG_UARTD
1000 bool "Kernel low-level debugging messages via Tegra UART D"
1001 depends on ARCH_TEGRA
1002 select DEBUG_TEGRA_UART
1004 Say Y here if you want kernel low-level debugging support
1005 on Tegra based platforms.
1007 config TEGRA_DEBUG_UARTE
1008 bool "Kernel low-level debugging messages via Tegra UART E"
1009 depends on ARCH_TEGRA
1010 select DEBUG_TEGRA_UART
1012 Say Y here if you want kernel low-level debugging support
1013 on Tegra based platforms.
1015 config DEBUG_SIRFPRIMA2_UART1
1016 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1017 depends on ARCH_PRIMA2
1018 select DEBUG_SIRFSOC_UART
1020 Say Y here if you want the debug print routines to direct
1021 their output to the uart1 port on SiRFprimaII devices.
1023 config DEBUG_SIRFATLAS7_UART0
1024 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1025 depends on ARCH_ATLAS7
1026 select DEBUG_SIRFSOC_UART
1028 Say Y here if you want the debug print routines to direct
1029 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1030 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1031 debug port can be very useful.
1033 config DEBUG_SIRFATLAS7_UART1
1034 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1035 depends on ARCH_ATLAS7
1036 select DEBUG_SIRFSOC_UART
1038 Say Y here if you want the debug print routines to direct
1039 their output to the uart1 port on SiRFATLAS7 devices.
1041 config STIH41X_DEBUG_ASC2
1042 bool "Use StiH415/416 ASC2 UART for low-level debug"
1044 select DEBUG_STI_UART
1046 Say Y here if you want kernel low-level debugging support
1047 on STiH415/416 based platforms like b2000, which has
1048 default UART wired up to ASC2.
1052 config STIH41X_DEBUG_SBC_ASC1
1053 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1055 select DEBUG_STI_UART
1057 Say Y here if you want kernel low-level debugging support
1058 on STiH415/416 based platforms like b2020. which has
1059 default UART wired up to SBC ASC1.
1063 config DEBUG_U300_UART
1064 bool "Kernel low-level debugging messages via U300 UART0"
1065 depends on ARCH_U300
1066 select DEBUG_UART_PL01X
1068 Say Y here if you want the debug print routines to direct
1069 their output to the uart port on U300 devices.
1071 config DEBUG_UX500_UART
1072 depends on ARCH_U8500
1073 bool "Use Ux500 UART for low-level debug"
1075 Say Y here if you want kernel low-level debugging support
1076 on Ux500 based platforms.
1078 config DEBUG_MT6589_UART0
1079 bool "Mediatek mt6589 UART0"
1080 depends on ARCH_MEDIATEK
1081 select DEBUG_UART_8250
1083 Say Y here if you want kernel low-level debugging support
1084 for Mediatek mt6589 based platforms on UART0.
1086 config DEBUG_MT8127_UART0
1087 bool "Mediatek mt8127/mt6592 UART0"
1088 depends on ARCH_MEDIATEK
1089 select DEBUG_UART_8250
1091 Say Y here if you want kernel low-level debugging support
1092 for Mediatek mt8127 based platforms on UART0.
1094 config DEBUG_MT8135_UART3
1095 bool "Mediatek mt8135 UART3"
1096 depends on ARCH_MEDIATEK
1097 select DEBUG_UART_8250
1099 Say Y here if you want kernel low-level debugging support
1100 for Mediatek mt8135 based platforms on UART3.
1102 config DEBUG_VEXPRESS_UART0_DETECT
1103 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1104 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1106 This option enables a simple heuristic which tries to determine
1107 the motherboard's memory map variant (original or RS1) and then
1108 choose the relevant UART0 base address.
1110 Note that this will only work with standard A-class core tiles,
1111 and may fail with non-standard SMM or custom software models.
1113 config DEBUG_VEXPRESS_UART0_CA9
1114 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1115 depends on ARCH_VEXPRESS
1116 select DEBUG_UART_PL01X
1118 This option selects UART0 at 0x10009000. Except for custom models,
1119 this applies only to the V2P-CA9 tile.
1121 config DEBUG_VEXPRESS_UART0_RS1
1122 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1123 depends on ARCH_VEXPRESS
1124 select DEBUG_UART_PL01X
1126 This option selects UART0 at 0x1c090000. This applies to most
1127 of the tiles using the RS1 memory map, including all new A-class
1128 core tiles, FPGA-based SMMs and software models.
1130 config DEBUG_VEXPRESS_UART0_CRX
1131 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1132 depends on ARCH_VEXPRESS && !MMU
1133 select DEBUG_UART_PL01X
1135 This option selects UART0 at 0xb0090000. This is appropriate for
1136 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1138 config DEBUG_VT8500_UART0
1139 bool "Use UART0 on VIA/Wondermedia SoCs"
1140 depends on ARCH_VT8500
1142 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1143 devices, including VT8500, WM8505, WM8650 and WM8850.
1146 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1148 Say Y here if you want the debug print routines to direct
1149 their output to the EmbeddedICE macrocell's DCC channel using
1150 co-processor 14. This is known to work on the ARM9 style ICE
1151 channel and on the XScale with the PEEDI.
1153 Note that the system will appear to hang during boot if there
1154 is nothing connected to read from the DCC.
1156 config DEBUG_SEMIHOSTING
1157 bool "Kernel low-level debug output via semihosting I/O"
1159 Semihosting enables code running on an ARM target to use
1160 the I/O facilities on a host debugger/emulator through a
1161 simple SVC call. The host debugger or emulator must have
1162 semihosting enabled for the special svc call to be trapped
1163 otherwise the kernel will crash.
1165 This is known to work with OpenOCD, as well as
1166 ARM's Fast Models, or any other controlling environment
1167 that implements semihosting.
1169 For more details about semihosting, please see
1170 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1172 config DEBUG_LL_UART_8250
1173 bool "Kernel low-level debugging via 8250 UART"
1175 Say Y here if you wish the debug print routes to direct
1176 their output to an 8250 UART. You can use this option
1177 to provide the parameters for the 8250 UART rather than
1178 selecting one of the platform specific options above if
1179 you know the parameters for the port.
1181 This option is preferred over the platform specific
1182 options; the platform specific options are deprecated
1183 and will be soon removed.
1185 config DEBUG_LL_UART_EFM32
1186 bool "Kernel low-level debugging via efm32 UART"
1187 depends on ARCH_EFM32
1189 Say Y here if you want the debug print routines to direct
1190 their output to an UART or USART port on efm32 based
1191 machines. Use the following addresses for DEBUG_UART_PHYS:
1199 config DEBUG_LL_UART_PL01X
1200 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1202 Say Y here if you wish the debug print routes to direct
1203 their output to a PL01x Primecell UART. You can use
1204 this option to provide the parameters for the UART
1205 rather than selecting one of the platform specific
1206 options above if you know the parameters for the port.
1208 This option is preferred over the platform specific
1209 options; the platform specific options are deprecated
1210 and will be soon removed.
1214 config DEBUG_AT91_UART
1216 depends on ARCH_AT91
1218 config DEBUG_EXYNOS_UART
1221 config DEBUG_S3C2410_UART
1223 select DEBUG_S3C24XX_UART
1225 config DEBUG_S3C24XX_UART
1228 config DEBUG_S5PV210_UART
1231 config DEBUG_OMAP2PLUS_UART
1233 depends on ARCH_OMAP2PLUS
1235 config DEBUG_IMX_UART_PORT
1236 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1237 DEBUG_IMX25_UART || \
1238 DEBUG_IMX21_IMX27_UART || \
1239 DEBUG_IMX31_UART || \
1240 DEBUG_IMX35_UART || \
1241 DEBUG_IMX50_UART || \
1242 DEBUG_IMX51_UART || \
1243 DEBUG_IMX53_UART || \
1244 DEBUG_IMX6Q_UART || \
1245 DEBUG_IMX6SL_UART || \
1250 Choose UART port on which kernel low-level debug messages
1253 config DEBUG_VF_UART_PORT
1254 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1257 depends on SOC_VF610
1259 Choose UART port on which kernel low-level debug messages
1262 config DEBUG_TEGRA_UART
1264 depends on ARCH_TEGRA
1266 config DEBUG_STI_UART
1270 config DEBUG_SIRFSOC_UART
1272 depends on ARCH_SIRF
1274 config DEBUG_LL_INCLUDE
1276 default "debug/sa1100.S" if DEBUG_SA1100
1277 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1278 default "debug/at91.S" if DEBUG_AT91_UART
1279 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1280 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1281 default "debug/meson.S" if DEBUG_MESON_UARTAO
1282 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1283 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1284 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1285 default "debug/icedcc.S" if DEBUG_ICEDCC
1286 default "debug/imx.S" if DEBUG_IMX1_UART || \
1287 DEBUG_IMX25_UART || \
1288 DEBUG_IMX21_IMX27_UART || \
1289 DEBUG_IMX31_UART || \
1290 DEBUG_IMX35_UART || \
1291 DEBUG_IMX50_UART || \
1292 DEBUG_IMX51_UART || \
1293 DEBUG_IMX53_UART ||\
1294 DEBUG_IMX6Q_UART || \
1295 DEBUG_IMX6SL_UART || \
1297 default "debug/ks8695.S" if DEBUG_KS8695_UART
1298 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1299 default "debug/netx.S" if DEBUG_NETX_UART
1300 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1301 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1302 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1303 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1304 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1305 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1306 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1307 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1308 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1309 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1310 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1311 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1312 default "debug/sti.S" if DEBUG_STI_UART
1313 default "debug/tegra.S" if DEBUG_TEGRA_UART
1314 default "debug/ux500.S" if DEBUG_UX500_UART
1315 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1316 default "debug/vf.S" if DEBUG_VF_UART
1317 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1318 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1319 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1320 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1321 default "mach/debug-macro.S"
1323 # Compatibility options for PL01x
1324 config DEBUG_UART_PL01X
1327 # Compatibility options for 8250
1328 config DEBUG_UART_8250
1329 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1330 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1331 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1332 ARCH_IOP33X || ARCH_IXP4XX || \
1333 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1335 # Compatibility options for BCM63xx
1336 config DEBUG_UART_BCM63XX
1337 def_bool ARCH_BCM_63XX
1339 config DEBUG_UART_PHYS
1340 hex "Physical base address of debug UART"
1341 default 0x00100a00 if DEBUG_NETX_UART
1342 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1343 default 0x01c28000 if DEBUG_SUNXI_UART0
1344 default 0x01c28400 if DEBUG_SUNXI_UART1
1345 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1346 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1347 default 0x01f02800 if DEBUG_SUNXI_R_UART
1348 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1349 default 0x02531000 if DEBUG_KEYSTONE_UART1
1350 default 0x03010fe0 if ARCH_RPC
1351 default 0x07000000 if DEBUG_SUN9I_UART0
1352 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1353 DEBUG_VEXPRESS_UART0_CA9
1354 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1355 default 0x10124000 if DEBUG_RK3X_UART0
1356 default 0x10126000 if DEBUG_RK3X_UART1
1357 default 0x101f1000 if ARCH_VERSATILE
1358 default 0x101fb000 if DEBUG_NOMADIK_UART
1359 default 0x11002000 if DEBUG_MT8127_UART0
1360 default 0x11006000 if DEBUG_MT6589_UART0
1361 default 0x11009000 if DEBUG_MT8135_UART3
1362 default 0x16000000 if ARCH_INTEGRATOR
1363 default 0x18000300 if DEBUG_BCM_5301X
1364 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1365 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1366 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1367 default 0x20001000 if DEBUG_HIP01_UART
1368 default 0x20060000 if DEBUG_RK29_UART0
1369 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1370 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1371 default 0x20201000 if DEBUG_BCM2835
1372 default 0x3e000000 if DEBUG_BCM_KONA_UART
1373 default 0x4000e400 if DEBUG_LL_UART_EFM32
1374 default 0x40090000 if ARCH_LPC32XX
1375 default 0x40100000 if DEBUG_PXA_UART1
1376 default 0x42000000 if ARCH_GEMINI
1377 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1378 DEBUG_S3C2410_UART0)
1379 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1380 DEBUG_S3C2410_UART1)
1381 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1382 DEBUG_S3C2410_UART2)
1383 default 0x78000000 if DEBUG_CNS3XXX
1384 default 0x7c0003f8 if FOOTBRIDGE
1385 default 0x80010000 if DEBUG_ASM9260_UART
1386 default 0x80070000 if DEBUG_IMX23_UART
1387 default 0x80074000 if DEBUG_IMX28_UART
1388 default 0x80230000 if DEBUG_PICOXCELL_UART
1389 default 0x808c0000 if ARCH_EP93XX
1390 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1391 default 0xa9a00000 if DEBUG_MSM_UART
1392 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1393 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1394 default 0xc0013000 if DEBUG_U300_UART
1395 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1396 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1397 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1398 default 0xd0012000 if DEBUG_MVEBU_UART0
1399 default 0xc81004c0 if DEBUG_MESON_UARTAO
1400 default 0xd4017000 if DEBUG_MMP_UART2
1401 default 0xd4018000 if DEBUG_MMP_UART3
1402 default 0xe0000000 if ARCH_SPEAR13XX
1403 default 0xe4007000 if DEBUG_HIP04_UART
1404 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1405 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1406 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1407 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1408 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1409 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1410 default 0xf0000be0 if ARCH_EBSA110
1411 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1412 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1413 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1414 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1416 default 0xf7fc9000 if DEBUG_BERLIN_UART
1417 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1418 default 0xf991e000 if DEBUG_QCOM_UARTDM
1419 default 0xfcb00000 if DEBUG_HI3620_UART
1420 default 0xfe800000 if ARCH_IOP32X
1421 default 0xff690000 if DEBUG_RK32_UART2
1422 default 0xffc02000 if DEBUG_SOCFPGA_UART
1423 default 0xffd82340 if ARCH_IOP13XX
1424 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1425 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1426 default 0xfff36000 if DEBUG_HIGHBANK_UART
1427 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1428 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1429 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1430 default 0xfffe8600 if DEBUG_UART_BCM63XX
1431 default 0xfffff700 if ARCH_IOP33X
1432 depends on ARCH_EP93XX || \
1433 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1434 DEBUG_LL_UART_EFM32 || \
1435 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1436 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1437 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1438 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1439 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1440 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1441 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1442 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1443 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1445 config DEBUG_UART_VIRT
1446 hex "Virtual base address of debug UART"
1447 default 0xe0000a00 if DEBUG_NETX_UART
1448 default 0xe0010fe0 if ARCH_RPC
1449 default 0xe1000000 if DEBUG_MSM_UART
1450 default 0xf0000be0 if ARCH_EBSA110
1451 default 0xf0010000 if DEBUG_ASM9260_UART
1452 default 0xf01fb000 if DEBUG_NOMADIK_UART
1453 default 0xf0201000 if DEBUG_BCM2835
1454 default 0xf1000300 if DEBUG_BCM_5301X
1455 default 0xf1002000 if DEBUG_MT8127_UART0
1456 default 0xf1006000 if DEBUG_MT6589_UART0
1457 default 0xf1009000 if DEBUG_MT8135_UART3
1458 default 0xf11f1000 if ARCH_VERSATILE
1459 default 0xf1600000 if ARCH_INTEGRATOR
1460 default 0xf1c28000 if DEBUG_SUNXI_UART0
1461 default 0xf1c28400 if DEBUG_SUNXI_UART1
1462 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1463 default 0xf6200000 if DEBUG_PXA_UART1
1464 default 0xf4090000 if ARCH_LPC32XX
1465 default 0xf4200000 if ARCH_GEMINI
1466 default 0xf7000000 if DEBUG_SUN9I_UART0
1467 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1468 DEBUG_S3C2410_UART0)
1469 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1470 DEBUG_S3C2410_UART1)
1471 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1472 DEBUG_S3C2410_UART2)
1473 default 0xf7fc9000 if DEBUG_BERLIN_UART
1474 default 0xf8007000 if DEBUG_HIP04_UART
1475 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1476 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1477 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1478 default 0xfb002000 if DEBUG_CNS3XXX
1479 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1480 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1481 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1482 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1483 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1484 default 0xfd000000 if ARCH_SPEAR13XX
1485 default 0xfd012000 if ARCH_MV78XX0
1486 default 0xfde12000 if ARCH_DOVE
1487 default 0xfe012000 if ARCH_ORION5X
1488 default 0xf31004c0 if DEBUG_MESON_UARTAO
1489 default 0xfe017000 if DEBUG_MMP_UART2
1490 default 0xfe018000 if DEBUG_MMP_UART3
1491 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1492 default 0xfe230000 if DEBUG_PICOXCELL_UART
1493 default 0xfe300000 if DEBUG_BCM_KONA_UART
1494 default 0xfe800000 if ARCH_IOP32X
1495 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1496 default 0xfeb24000 if DEBUG_RK3X_UART0
1497 default 0xfeb26000 if DEBUG_RK3X_UART1
1498 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1499 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1500 default 0xfec02000 if DEBUG_SOCFPGA_UART
1501 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1502 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1503 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1504 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1505 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1506 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1507 default 0xfec90000 if DEBUG_RK32_UART2
1508 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1509 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1510 default 0xfed60000 if DEBUG_RK29_UART0
1511 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1512 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1513 default 0xfedc0000 if ARCH_EP93XX
1514 default 0xfee003f8 if FOOTBRIDGE
1515 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1516 default 0xfee82340 if ARCH_IOP13XX
1517 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1518 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1519 default 0xfef36000 if DEBUG_HIGHBANK_UART
1520 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1521 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1522 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1523 default 0xfefff700 if ARCH_IOP33X
1524 default 0xff003000 if DEBUG_U300_UART
1525 default 0xffd01000 if DEBUG_HIP01_UART
1526 default DEBUG_UART_PHYS if !MMU
1527 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1528 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1529 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1530 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1531 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1532 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1534 config DEBUG_UART_8250_SHIFT
1535 int "Register offset shift for the 8250 debug UART"
1536 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1537 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
1538 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1541 config DEBUG_UART_8250_WORD
1542 bool "Use 32-bit accesses for 8250 UART"
1543 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1544 depends on DEBUG_UART_8250_SHIFT >= 2
1545 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1547 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1548 DEBUG_DAVINCI_DA8XX_UART2 || \
1549 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1552 config DEBUG_UART_8250_FLOW_CONTROL
1553 bool "Enable flow control for 8250 UART"
1554 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1555 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1557 config DEBUG_UNCOMPRESS
1559 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1560 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1561 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1563 This option influences the normal decompressor output for
1564 multiplatform kernels. Normally, multiplatform kernels disable
1565 decompressor output because it is not possible to know where to
1566 send the decompressor output.
1568 When this option is set, the selected DEBUG_LL output method
1569 will be re-used for normal decompressor output on multiplatform
1573 config UNCOMPRESS_INCLUDE
1575 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1576 PLAT_SAMSUNG || ARCH_EFM32
1577 default "mach/uncompress.h"
1583 Say Y here if you want to have an early console using the
1584 kernel low-level debugging functions. Add earlyprintk to your
1585 kernel parameters to enable this console.
1587 config ARM_KPROBES_TEST
1588 tristate "Kprobes test module"
1589 depends on KPROBES && MODULES
1591 Perform tests of kprobes API and instruction set simulation.
1593 config PID_IN_CONTEXTIDR
1594 bool "Write the current PID to the CONTEXTIDR register"
1595 depends on CPU_COPY_V6
1597 Enabling this option causes the kernel to write the current PID to
1598 the PROCID field of the CONTEXTIDR register, at the expense of some
1599 additional instructions during context switch. Say Y here only if you
1600 are planning to use hardware trace tools with this kernel.
1602 config DEBUG_SET_MODULE_RONX
1603 bool "Set loadable kernel module data as NX and text as RO"
1606 This option helps catch unintended modifications to loadable
1607 kernel module's text and read-only data. It also prevents execution
1608 of module data. Such protection may interfere with run-time code
1609 patching and dynamic kernel tracing - and they might also protect
1610 against certain classes of kernel exploits.
1611 If in doubt, say "N".
1613 menuconfig CORESIGHT
1614 bool "CoreSight Tracing Support"
1617 This framework provides a kernel interface for the CoreSight debug
1618 and trace drivers to register themselves with. It's intended to build
1619 a topological view of the CoreSight components based on a DT
1620 specification and configure the right serie of components when a
1621 trace source gets enabled.
1624 config CORESIGHT_LINKS_AND_SINKS
1625 bool "CoreSight Link and Sink drivers"
1627 This enables support for CoreSight link and sink drivers that are
1628 responsible for transporting and collecting the trace data
1629 respectively. Link and sinks are dynamically aggregated with a trace
1630 entity at run time to form a complete trace path.
1632 config CORESIGHT_LINK_AND_SINK_TMC
1633 bool "Coresight generic TMC driver"
1634 depends on CORESIGHT_LINKS_AND_SINKS
1636 This enables support for the Trace Memory Controller driver. Depending
1637 on its configuration the device can act as a link (embedded trace router
1638 - ETR) or sink (embedded trace FIFO). The driver complies with the
1639 generic implementation of the component without special enhancement or
1642 config CORESIGHT_SINK_TPIU
1643 bool "Coresight generic TPIU driver"
1644 depends on CORESIGHT_LINKS_AND_SINKS
1646 This enables support for the Trace Port Interface Unit driver, responsible
1647 for bridging the gap between the on-chip coresight components and a trace
1648 port collection engine, typically connected to an external host for use
1649 case capturing more traces than the on-board coresight memory can handle.
1651 config CORESIGHT_SINK_ETBV10
1652 bool "Coresight ETBv1.0 driver"
1653 depends on CORESIGHT_LINKS_AND_SINKS
1655 This enables support for the Embedded Trace Buffer version 1.0 driver
1656 that complies with the generic implementation of the component without
1657 special enhancement or added features.
1659 config CORESIGHT_SOURCE_ETM3X
1660 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1661 select CORESIGHT_LINKS_AND_SINKS
1663 This driver provides support for processor ETM3.x and PTM1.x modules,
1664 which allows tracing the instructions that a processor is executing
1665 This is primarily useful for instruction level tracing. Depending
1666 the ETM version data tracing may also be available.