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_QCOM_UARTDM
452 bool "Kernel low-level debugging messages via QCOM UARTDM"
455 Say Y here if you want the debug print routines to direct
456 their output to the serial port on Qualcomm devices.
458 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
459 APQ8064 0x16640000 0xf0040000
460 APQ8084 0xf995e000 0xfa75e000
461 MSM8X60 0x19c40000 0xf0040000
462 MSM8960 0x16440000 0xf0040000
463 MSM8974 0xf991e000 0xfa71e000
465 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
466 options based on your needs.
468 config DEBUG_MVEBU_UART0
469 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
470 depends on ARCH_MVEBU
471 select DEBUG_UART_8250
473 Say Y here if you want kernel low-level debugging support
474 on MVEBU based platforms on UART0.
476 This option should be used with the old bootloaders
477 that left the internal registers mapped at
478 0xd0000000. As of today, this is the case on
479 platforms such as the Globalscale Mirabox or the
480 Plathome OpenBlocks AX3, when using the original
483 If the wrong DEBUG_MVEBU_UART* option is selected,
484 when u-boot hands over to the kernel, the system
485 silently crashes, with no serial output at all.
487 config DEBUG_MVEBU_UART0_ALTERNATE
488 bool "Kernel low-level debugging messages via MVEBU UART0 (new 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 new bootloaders
496 that remap the internal registers at 0xf1000000.
498 If the wrong DEBUG_MVEBU_UART* option is selected,
499 when u-boot hands over to the kernel, the system
500 silently crashes, with no serial output at all.
502 config DEBUG_MVEBU_UART1_ALTERNATE
503 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
504 depends on ARCH_MVEBU
505 select DEBUG_UART_8250
507 Say Y here if you want kernel low-level debugging support
508 on MVEBU based platforms on UART1.
510 This option should be used with the new bootloaders
511 that remap the internal registers at 0xf1000000.
513 If the wrong DEBUG_MVEBU_UART* option is selected,
514 when u-boot hands over to the kernel, the system
515 silently crashes, with no serial output at all.
521 Say Y here if you want kernel low-level debugging support
522 on Vybrid based platforms.
524 config DEBUG_NETX_UART
525 bool "Kernel low-level debugging messages via NetX UART"
528 Say Y here if you want kernel low-level debugging support
529 on Hilscher NetX based platforms.
531 config DEBUG_NOMADIK_UART
532 bool "Kernel low-level debugging messages via NOMADIK UART"
533 depends on ARCH_NOMADIK
534 select DEBUG_UART_PL01X
536 Say Y here if you want kernel low-level debugging support
537 on NOMADIK based platforms.
539 config DEBUG_NSPIRE_CLASSIC_UART
540 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
541 depends on ARCH_NSPIRE
542 select DEBUG_UART_8250
544 Say Y here if you want kernel low-level debugging support
545 on TI-NSPIRE classic models.
547 config DEBUG_NSPIRE_CX_UART
548 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
549 depends on ARCH_NSPIRE
550 select DEBUG_UART_PL01X
552 Say Y here if you want kernel low-level debugging support
553 on TI-NSPIRE CX models.
555 config DEBUG_OMAP1UART1
556 bool "Kernel low-level debugging via OMAP1 UART1"
557 depends on ARCH_OMAP1
558 select DEBUG_UART_8250
560 Say Y here if you want kernel low-level debugging support
561 on OMAP1 based platforms (except OMAP730) on the UART1.
563 config DEBUG_OMAP1UART2
564 bool "Kernel low-level debugging via OMAP1 UART2"
565 depends on ARCH_OMAP1
566 select DEBUG_UART_8250
568 Say Y here if you want kernel low-level debugging support
569 on OMAP1 based platforms (except OMAP730) on the UART2.
571 config DEBUG_OMAP1UART3
572 bool "Kernel low-level debugging via OMAP1 UART3"
573 depends on ARCH_OMAP1
574 select DEBUG_UART_8250
576 Say Y here if you want kernel low-level debugging support
577 on OMAP1 based platforms (except OMAP730) on the UART3.
579 config DEBUG_OMAP2UART1
580 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
581 depends on ARCH_OMAP2PLUS
582 select DEBUG_OMAP2PLUS_UART
584 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
585 omap3 torpedo and 3530 lv som.
587 config DEBUG_OMAP2UART2
588 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
589 depends on ARCH_OMAP2PLUS
590 select DEBUG_OMAP2PLUS_UART
592 config DEBUG_OMAP2UART3
593 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
594 depends on ARCH_OMAP2PLUS
595 select DEBUG_OMAP2PLUS_UART
597 config DEBUG_OMAP3UART3
598 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
599 depends on ARCH_OMAP2PLUS
600 select DEBUG_OMAP2PLUS_UART
602 This covers at least cm_t3x, beagle, crane, devkit8000,
603 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
606 config DEBUG_OMAP4UART3
607 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
608 depends on ARCH_OMAP2PLUS
609 select DEBUG_OMAP2PLUS_UART
611 config DEBUG_OMAP3UART4
612 bool "Kernel low-level debugging messages via OMAP36XX UART4"
613 depends on ARCH_OMAP2PLUS
614 select DEBUG_OMAP2PLUS_UART
616 config DEBUG_OMAP4UART4
617 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
618 depends on ARCH_OMAP2PLUS
619 select DEBUG_OMAP2PLUS_UART
621 config DEBUG_OMAP7XXUART1
622 bool "Kernel low-level debugging via OMAP730 UART1"
623 depends on ARCH_OMAP730
624 select DEBUG_UART_8250
626 Say Y here if you want kernel low-level debugging support
627 on OMAP730 based platforms on the UART1.
629 config DEBUG_OMAP7XXUART2
630 bool "Kernel low-level debugging via OMAP730 UART2"
631 depends on ARCH_OMAP730
632 select DEBUG_UART_8250
634 Say Y here if you want kernel low-level debugging support
635 on OMAP730 based platforms on the UART2.
637 config DEBUG_OMAP7XXUART3
638 bool "Kernel low-level debugging via OMAP730 UART3"
639 depends on ARCH_OMAP730
640 select DEBUG_UART_8250
642 Say Y here if you want kernel low-level debugging support
643 on OMAP730 based platforms on the UART3.
645 config DEBUG_TI81XXUART1
646 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
647 depends on ARCH_OMAP2PLUS
648 select DEBUG_OMAP2PLUS_UART
650 config DEBUG_TI81XXUART2
651 bool "Kernel low-level debugging messages via TI81XX UART2"
652 depends on ARCH_OMAP2PLUS
653 select DEBUG_OMAP2PLUS_UART
655 config DEBUG_TI81XXUART3
656 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
657 depends on ARCH_OMAP2PLUS
658 select DEBUG_OMAP2PLUS_UART
660 config DEBUG_AM33XXUART1
661 bool "Kernel low-level debugging messages via AM33XX UART1"
662 depends on ARCH_OMAP2PLUS
663 select DEBUG_OMAP2PLUS_UART
665 config DEBUG_ZOOM_UART
666 bool "Kernel low-level debugging messages via Zoom2/3 UART"
667 depends on ARCH_OMAP2PLUS
668 select DEBUG_OMAP2PLUS_UART
670 config DEBUG_PICOXCELL_UART
671 depends on ARCH_PICOXCELL
672 bool "Use PicoXcell UART for low-level debug"
673 select DEBUG_UART_8250
675 Say Y here if you want kernel low-level debugging support
676 on PicoXcell based platforms.
678 config DEBUG_PXA_UART1
680 bool "Use PXA UART1 for low-level debug"
681 select DEBUG_UART_8250
683 Say Y here if you want kernel low-level debugging support
686 config DEBUG_REALVIEW_STD_PORT
687 bool "RealView Default UART"
688 depends on ARCH_REALVIEW
689 select DEBUG_UART_PL01X
691 Say Y here if you want the debug print routines to direct
692 their output to the serial port on RealView EB, PB11MP, PBA8
695 config DEBUG_REALVIEW_PB1176_PORT
696 bool "RealView PB1176 UART"
697 depends on MACH_REALVIEW_PB1176
698 select DEBUG_UART_PL01X
700 Say Y here if you want the debug print routines to direct
701 their output to the standard serial port on the RealView
704 config DEBUG_RK29_UART0
705 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
706 depends on ARCH_ROCKCHIP
707 select DEBUG_UART_8250
709 Say Y here if you want kernel low-level debugging support
710 on Rockchip based platforms.
712 config DEBUG_RK29_UART1
713 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
714 depends on ARCH_ROCKCHIP
715 select DEBUG_UART_8250
717 Say Y here if you want kernel low-level debugging support
718 on Rockchip based platforms.
720 config DEBUG_RK29_UART2
721 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
722 depends on ARCH_ROCKCHIP
723 select DEBUG_UART_8250
725 Say Y here if you want kernel low-level debugging support
726 on Rockchip based platforms.
728 config DEBUG_RK3X_UART0
729 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
730 depends on ARCH_ROCKCHIP
731 select DEBUG_UART_8250
733 Say Y here if you want kernel low-level debugging support
734 on Rockchip based platforms.
736 config DEBUG_RK3X_UART1
737 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
738 depends on ARCH_ROCKCHIP
739 select DEBUG_UART_8250
741 Say Y here if you want kernel low-level debugging support
742 on Rockchip based platforms.
744 config DEBUG_RK3X_UART2
745 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
746 depends on ARCH_ROCKCHIP
747 select DEBUG_UART_8250
749 Say Y here if you want kernel low-level debugging support
750 on Rockchip based platforms.
752 config DEBUG_RK3X_UART3
753 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
754 depends on ARCH_ROCKCHIP
755 select DEBUG_UART_8250
757 Say Y here if you want kernel low-level debugging support
758 on Rockchip based platforms.
760 config DEBUG_RK32_UART2
761 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
762 depends on ARCH_ROCKCHIP
763 select DEBUG_UART_8250
765 Say Y here if you want kernel low-level debugging support
766 on Rockchip RK32xx based platforms.
768 config DEBUG_R7S72100_SCIF2
769 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
770 depends on ARCH_R7S72100
772 Say Y here if you want kernel low-level debugging support
773 via SCIF2 on Renesas RZ/A1H (R7S72100).
775 config DEBUG_RCAR_GEN1_SCIF0
776 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
777 depends on ARCH_R8A7778
779 Say Y here if you want kernel low-level debugging support
780 via SCIF0 on Renesas R-Car M1A (R8A7778).
782 config DEBUG_RCAR_GEN1_SCIF2
783 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
784 depends on ARCH_R8A7779
786 Say Y here if you want kernel low-level debugging support
787 via SCIF2 on Renesas R-Car H1 (R8A7779).
789 config DEBUG_RCAR_GEN2_SCIF0
790 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
791 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
793 Say Y here if you want kernel low-level debugging support
794 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
797 config DEBUG_RCAR_GEN2_SCIF2
798 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
799 depends on ARCH_R8A7794
801 Say Y here if you want kernel low-level debugging support
802 via SCIF2 on Renesas R-Car E2 (R8A7794).
804 config DEBUG_RMOBILE_SCIFA0
805 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
806 depends on ARCH_R8A73A4 || ARCH_SH7372
808 Say Y here if you want kernel low-level debugging support
809 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
812 config DEBUG_RMOBILE_SCIFA1
813 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
814 depends on ARCH_R8A7740
816 Say Y here if you want kernel low-level debugging support
817 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
819 config DEBUG_RMOBILE_SCIFA4
820 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
821 depends on ARCH_SH73A0
823 Say Y here if you want kernel low-level debugging support
824 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
826 config DEBUG_S3C_UART0
827 depends on PLAT_SAMSUNG
828 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
829 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
830 select DEBUG_S5PV210_UART if ARCH_S5PV210
831 bool "Use Samsung S3C UART 0 for low-level debug"
833 Say Y here if you want the debug print routines to direct
834 their output to UART 0. The port must have been initialised
835 by the boot-loader before use.
837 config DEBUG_S3C_UART1
838 depends on PLAT_SAMSUNG
839 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
840 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
841 select DEBUG_S5PV210_UART if ARCH_S5PV210
842 bool "Use Samsung S3C UART 1 for low-level debug"
844 Say Y here if you want the debug print routines to direct
845 their output to UART 1. The port must have been initialised
846 by the boot-loader before use.
848 config DEBUG_S3C_UART2
849 depends on PLAT_SAMSUNG
850 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
851 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
852 select DEBUG_S5PV210_UART if ARCH_S5PV210
853 bool "Use Samsung S3C UART 2 for low-level debug"
855 Say Y here if you want the debug print routines to direct
856 their output to UART 2. The port must have been initialised
857 by the boot-loader before use.
859 config DEBUG_S3C_UART3
860 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
861 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
862 select DEBUG_S5PV210_UART if ARCH_S5PV210
863 bool "Use Samsung S3C UART 3 for low-level debug"
865 Say Y here if you want the debug print routines to direct
866 their output to UART 3. The port must have been initialised
867 by the boot-loader before use.
869 config DEBUG_S3C2410_UART0
870 depends on ARCH_S3C24XX
871 select DEBUG_S3C2410_UART
872 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
874 Say Y here if you want the debug print routines to direct
875 their output to UART 0. The port must have been initialised
876 by the boot-loader before use.
878 config DEBUG_S3C2410_UART1
879 depends on ARCH_S3C24XX
880 select DEBUG_S3C2410_UART
881 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
883 Say Y here if you want the debug print routines to direct
884 their output to UART 1. The port must have been initialised
885 by the boot-loader before use.
887 config DEBUG_S3C2410_UART2
888 depends on ARCH_S3C24XX
889 select DEBUG_S3C2410_UART
890 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
892 Say Y here if you want the debug print routines to direct
893 their output to UART 2. The port must have been initialised
894 by the boot-loader before use.
897 depends on ARCH_SA1100
898 bool "Use SA1100 UARTs for low-level debug"
900 Say Y here if you want kernel low-level debugging support
901 on SA-11x0 UART ports. The kernel will check for the first
902 enabled UART in a sequence 3-1-2.
904 config DEBUG_SOCFPGA_UART
905 depends on ARCH_SOCFPGA
906 bool "Use SOCFPGA UART for low-level debug"
907 select DEBUG_UART_8250
909 Say Y here if you want kernel low-level debugging support
910 on SOCFPGA based platforms.
912 config DEBUG_SUN9I_UART0
913 bool "Kernel low-level debugging messages via sun9i UART0"
914 depends on MACH_SUN9I
915 select DEBUG_UART_8250
917 Say Y here if you want kernel low-level debugging support
918 on Allwinner A80 based platforms on the UART0.
920 config DEBUG_SUNXI_UART0
921 bool "Kernel low-level debugging messages via sunXi UART0"
922 depends on ARCH_SUNXI
923 select DEBUG_UART_8250
925 Say Y here if you want kernel low-level debugging support
926 on Allwinner A1X based platforms on the UART0.
928 config DEBUG_SUNXI_UART1
929 bool "Kernel low-level debugging messages via sunXi UART1"
930 depends on ARCH_SUNXI
931 select DEBUG_UART_8250
933 Say Y here if you want kernel low-level debugging support
934 on Allwinner A1X based platforms on the UART1.
936 config DEBUG_SUNXI_R_UART
937 bool "Kernel low-level debugging messages via sunXi R_UART"
938 depends on MACH_SUN6I || MACH_SUN8I
939 select DEBUG_UART_8250
941 Say Y here if you want kernel low-level debugging support
942 on Allwinner A31/A23 based platforms on the R_UART.
944 config TEGRA_DEBUG_UART_AUTO_ODMDATA
945 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
946 depends on ARCH_TEGRA
947 select DEBUG_TEGRA_UART
949 Automatically determines which UART to use for low-level
950 debug based on the ODMDATA value. This value is part of
951 the BCT, and is written to the boot memory device using
952 nvflash, or other flashing tool. When bits 19:18 are 3,
953 then bits 17:15 indicate which UART to use; 0/1/2/3/4
956 config TEGRA_DEBUG_UARTA
957 bool "Kernel low-level debugging messages via Tegra UART A"
958 depends on ARCH_TEGRA
959 select DEBUG_TEGRA_UART
961 Say Y here if you want kernel low-level debugging support
962 on Tegra based platforms.
964 config TEGRA_DEBUG_UARTB
965 bool "Kernel low-level debugging messages via Tegra UART B"
966 depends on ARCH_TEGRA
967 select DEBUG_TEGRA_UART
969 Say Y here if you want kernel low-level debugging support
970 on Tegra based platforms.
972 config TEGRA_DEBUG_UARTC
973 bool "Kernel low-level debugging messages via Tegra UART C"
974 depends on ARCH_TEGRA
975 select DEBUG_TEGRA_UART
977 Say Y here if you want kernel low-level debugging support
978 on Tegra based platforms.
980 config TEGRA_DEBUG_UARTD
981 bool "Kernel low-level debugging messages via Tegra UART D"
982 depends on ARCH_TEGRA
983 select DEBUG_TEGRA_UART
985 Say Y here if you want kernel low-level debugging support
986 on Tegra based platforms.
988 config TEGRA_DEBUG_UARTE
989 bool "Kernel low-level debugging messages via Tegra UART E"
990 depends on ARCH_TEGRA
991 select DEBUG_TEGRA_UART
993 Say Y here if you want kernel low-level debugging support
994 on Tegra based platforms.
996 config DEBUG_SIRFPRIMA2_UART1
997 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
998 depends on ARCH_PRIMA2
999 select DEBUG_SIRFSOC_UART
1001 Say Y here if you want the debug print routines to direct
1002 their output to the uart1 port on SiRFprimaII devices.
1004 config DEBUG_SIRFATLAS7_UART0
1005 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1006 depends on ARCH_ATLAS7
1007 select DEBUG_SIRFSOC_UART
1009 Say Y here if you want the debug print routines to direct
1010 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1011 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1012 debug port can be very useful.
1014 config DEBUG_SIRFATLAS7_UART1
1015 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1016 depends on ARCH_ATLAS7
1017 select DEBUG_SIRFSOC_UART
1019 Say Y here if you want the debug print routines to direct
1020 their output to the uart1 port on SiRFATLAS7 devices.
1022 config STIH41X_DEBUG_ASC2
1023 bool "Use StiH415/416 ASC2 UART for low-level debug"
1025 select DEBUG_STI_UART
1027 Say Y here if you want kernel low-level debugging support
1028 on STiH415/416 based platforms like b2000, which has
1029 default UART wired up to ASC2.
1033 config STIH41X_DEBUG_SBC_ASC1
1034 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1036 select DEBUG_STI_UART
1038 Say Y here if you want kernel low-level debugging support
1039 on STiH415/416 based platforms like b2020. which has
1040 default UART wired up to SBC ASC1.
1044 config DEBUG_U300_UART
1045 bool "Kernel low-level debugging messages via U300 UART0"
1046 depends on ARCH_U300
1047 select DEBUG_UART_PL01X
1049 Say Y here if you want the debug print routines to direct
1050 their output to the uart port on U300 devices.
1052 config DEBUG_UX500_UART
1053 depends on ARCH_U8500
1054 bool "Use Ux500 UART for low-level debug"
1056 Say Y here if you want kernel low-level debugging support
1057 on Ux500 based platforms.
1059 config DEBUG_MT6589_UART0
1060 bool "Mediatek mt6589 UART0"
1061 depends on ARCH_MEDIATEK
1062 select DEBUG_UART_8250
1064 Say Y here if you want kernel low-level debugging support
1065 for Mediatek mt6589 based platforms on UART0.
1067 config DEBUG_MT8127_UART0
1068 bool "Mediatek mt8127/mt6592 UART0"
1069 depends on ARCH_MEDIATEK
1070 select DEBUG_UART_8250
1072 Say Y here if you want kernel low-level debugging support
1073 for Mediatek mt8127 based platforms on UART0.
1075 config DEBUG_MT8135_UART3
1076 bool "Mediatek mt8135 UART3"
1077 depends on ARCH_MEDIATEK
1078 select DEBUG_UART_8250
1080 Say Y here if you want kernel low-level debugging support
1081 for Mediatek mt8135 based platforms on UART3.
1083 config DEBUG_VEXPRESS_UART0_DETECT
1084 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1085 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1087 This option enables a simple heuristic which tries to determine
1088 the motherboard's memory map variant (original or RS1) and then
1089 choose the relevant UART0 base address.
1091 Note that this will only work with standard A-class core tiles,
1092 and may fail with non-standard SMM or custom software models.
1094 config DEBUG_VEXPRESS_UART0_CA9
1095 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1096 depends on ARCH_VEXPRESS
1097 select DEBUG_UART_PL01X
1099 This option selects UART0 at 0x10009000. Except for custom models,
1100 this applies only to the V2P-CA9 tile.
1102 config DEBUG_VEXPRESS_UART0_RS1
1103 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1104 depends on ARCH_VEXPRESS
1105 select DEBUG_UART_PL01X
1107 This option selects UART0 at 0x1c090000. This applies to most
1108 of the tiles using the RS1 memory map, including all new A-class
1109 core tiles, FPGA-based SMMs and software models.
1111 config DEBUG_VEXPRESS_UART0_CRX
1112 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1113 depends on ARCH_VEXPRESS && !MMU
1114 select DEBUG_UART_PL01X
1116 This option selects UART0 at 0xb0090000. This is appropriate for
1117 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1119 config DEBUG_VT8500_UART0
1120 bool "Use UART0 on VIA/Wondermedia SoCs"
1121 depends on ARCH_VT8500
1123 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1124 devices, including VT8500, WM8505, WM8650 and WM8850.
1127 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1129 Say Y here if you want the debug print routines to direct
1130 their output to the EmbeddedICE macrocell's DCC channel using
1131 co-processor 14. This is known to work on the ARM9 style ICE
1132 channel and on the XScale with the PEEDI.
1134 Note that the system will appear to hang during boot if there
1135 is nothing connected to read from the DCC.
1137 config DEBUG_SEMIHOSTING
1138 bool "Kernel low-level debug output via semihosting I/O"
1140 Semihosting enables code running on an ARM target to use
1141 the I/O facilities on a host debugger/emulator through a
1142 simple SVC call. The host debugger or emulator must have
1143 semihosting enabled for the special svc call to be trapped
1144 otherwise the kernel will crash.
1146 This is known to work with OpenOCD, as well as
1147 ARM's Fast Models, or any other controlling environment
1148 that implements semihosting.
1150 For more details about semihosting, please see
1151 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1153 config DEBUG_LL_UART_8250
1154 bool "Kernel low-level debugging via 8250 UART"
1156 Say Y here if you wish the debug print routes to direct
1157 their output to an 8250 UART. You can use this option
1158 to provide the parameters for the 8250 UART rather than
1159 selecting one of the platform specific options above if
1160 you know the parameters for the port.
1162 This option is preferred over the platform specific
1163 options; the platform specific options are deprecated
1164 and will be soon removed.
1166 config DEBUG_LL_UART_EFM32
1167 bool "Kernel low-level debugging via efm32 UART"
1168 depends on ARCH_EFM32
1170 Say Y here if you want the debug print routines to direct
1171 their output to an UART or USART port on efm32 based
1172 machines. Use the following addresses for DEBUG_UART_PHYS:
1180 config DEBUG_LL_UART_PL01X
1181 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1183 Say Y here if you wish the debug print routes to direct
1184 their output to a PL01x Primecell UART. You can use
1185 this option to provide the parameters for the UART
1186 rather than selecting one of the platform specific
1187 options above if you know the parameters for the port.
1189 This option is preferred over the platform specific
1190 options; the platform specific options are deprecated
1191 and will be soon removed.
1195 config DEBUG_AT91_UART
1197 depends on ARCH_AT91
1199 config DEBUG_EXYNOS_UART
1202 config DEBUG_S3C2410_UART
1204 select DEBUG_S3C24XX_UART
1206 config DEBUG_S3C24XX_UART
1209 config DEBUG_S5PV210_UART
1212 config DEBUG_OMAP2PLUS_UART
1214 depends on ARCH_OMAP2PLUS
1216 config DEBUG_IMX_UART_PORT
1217 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1218 DEBUG_IMX25_UART || \
1219 DEBUG_IMX21_IMX27_UART || \
1220 DEBUG_IMX31_UART || \
1221 DEBUG_IMX35_UART || \
1222 DEBUG_IMX50_UART || \
1223 DEBUG_IMX51_UART || \
1224 DEBUG_IMX53_UART || \
1225 DEBUG_IMX6Q_UART || \
1226 DEBUG_IMX6SL_UART || \
1231 Choose UART port on which kernel low-level debug messages
1234 config DEBUG_VF_UART_PORT
1235 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1238 depends on SOC_VF610
1240 Choose UART port on which kernel low-level debug messages
1243 config DEBUG_TEGRA_UART
1245 depends on ARCH_TEGRA
1247 config DEBUG_STI_UART
1251 config DEBUG_SIRFSOC_UART
1253 depends on ARCH_SIRF
1255 config DEBUG_LL_INCLUDE
1257 default "debug/sa1100.S" if DEBUG_SA1100
1258 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1259 default "debug/at91.S" if DEBUG_AT91_UART
1260 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1261 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1262 default "debug/meson.S" if DEBUG_MESON_UARTAO
1263 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1264 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1265 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1266 default "debug/icedcc.S" if DEBUG_ICEDCC
1267 default "debug/imx.S" if DEBUG_IMX1_UART || \
1268 DEBUG_IMX25_UART || \
1269 DEBUG_IMX21_IMX27_UART || \
1270 DEBUG_IMX31_UART || \
1271 DEBUG_IMX35_UART || \
1272 DEBUG_IMX50_UART || \
1273 DEBUG_IMX51_UART || \
1274 DEBUG_IMX53_UART ||\
1275 DEBUG_IMX6Q_UART || \
1276 DEBUG_IMX6SL_UART || \
1278 default "debug/ks8695.S" if DEBUG_KS8695_UART
1279 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1280 default "debug/netx.S" if DEBUG_NETX_UART
1281 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1282 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1283 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1284 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1285 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1286 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1287 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1288 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1289 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1290 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1291 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1292 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1293 default "debug/sti.S" if DEBUG_STI_UART
1294 default "debug/tegra.S" if DEBUG_TEGRA_UART
1295 default "debug/ux500.S" if DEBUG_UX500_UART
1296 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1297 default "debug/vf.S" if DEBUG_VF_UART
1298 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1299 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1300 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1301 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1302 default "mach/debug-macro.S"
1304 # Compatibility options for PL01x
1305 config DEBUG_UART_PL01X
1308 # Compatibility options for 8250
1309 config DEBUG_UART_8250
1310 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1311 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1312 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1313 ARCH_IOP33X || ARCH_IXP4XX || \
1314 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1316 # Compatibility options for BCM63xx
1317 config DEBUG_UART_BCM63XX
1318 def_bool ARCH_BCM_63XX
1320 config DEBUG_UART_PHYS
1321 hex "Physical base address of debug UART"
1322 default 0x00100a00 if DEBUG_NETX_UART
1323 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1324 default 0x01c28000 if DEBUG_SUNXI_UART0
1325 default 0x01c28400 if DEBUG_SUNXI_UART1
1326 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1327 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1328 default 0x01f02800 if DEBUG_SUNXI_R_UART
1329 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1330 default 0x02531000 if DEBUG_KEYSTONE_UART1
1331 default 0x03010fe0 if ARCH_RPC
1332 default 0x07000000 if DEBUG_SUN9I_UART0
1333 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1334 DEBUG_VEXPRESS_UART0_CA9
1335 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1336 default 0x10124000 if DEBUG_RK3X_UART0
1337 default 0x10126000 if DEBUG_RK3X_UART1
1338 default 0x101f1000 if ARCH_VERSATILE
1339 default 0x101fb000 if DEBUG_NOMADIK_UART
1340 default 0x11002000 if DEBUG_MT8127_UART0
1341 default 0x11006000 if DEBUG_MT6589_UART0
1342 default 0x11009000 if DEBUG_MT8135_UART3
1343 default 0x16000000 if ARCH_INTEGRATOR
1344 default 0x18000300 if DEBUG_BCM_5301X
1345 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1346 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1347 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1348 default 0x20001000 if DEBUG_HIP01_UART
1349 default 0x20060000 if DEBUG_RK29_UART0
1350 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1351 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1352 default 0x20201000 if DEBUG_BCM2835
1353 default 0x3e000000 if DEBUG_BCM_KONA_UART
1354 default 0x4000e400 if DEBUG_LL_UART_EFM32
1355 default 0x40090000 if ARCH_LPC32XX
1356 default 0x40100000 if DEBUG_PXA_UART1
1357 default 0x42000000 if ARCH_GEMINI
1358 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1359 DEBUG_S3C2410_UART0)
1360 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1361 DEBUG_S3C2410_UART1)
1362 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1363 DEBUG_S3C2410_UART2)
1364 default 0x78000000 if DEBUG_CNS3XXX
1365 default 0x7c0003f8 if FOOTBRIDGE
1366 default 0x80010000 if DEBUG_ASM9260_UART
1367 default 0x80070000 if DEBUG_IMX23_UART
1368 default 0x80074000 if DEBUG_IMX28_UART
1369 default 0x80230000 if DEBUG_PICOXCELL_UART
1370 default 0x808c0000 if ARCH_EP93XX
1371 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1372 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1373 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1374 default 0xc0013000 if DEBUG_U300_UART
1375 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1376 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1377 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1378 default 0xd0012000 if DEBUG_MVEBU_UART0
1379 default 0xc81004c0 if DEBUG_MESON_UARTAO
1380 default 0xd4017000 if DEBUG_MMP_UART2
1381 default 0xd4018000 if DEBUG_MMP_UART3
1382 default 0xe0000000 if ARCH_SPEAR13XX
1383 default 0xe4007000 if DEBUG_HIP04_UART
1384 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1385 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1386 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1387 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1388 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1389 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1390 default 0xf0000be0 if ARCH_EBSA110
1391 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1392 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1393 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1394 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1396 default 0xf7fc9000 if DEBUG_BERLIN_UART
1397 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1398 default 0xf991e000 if DEBUG_QCOM_UARTDM
1399 default 0xfcb00000 if DEBUG_HI3620_UART
1400 default 0xfe800000 if ARCH_IOP32X
1401 default 0xff690000 if DEBUG_RK32_UART2
1402 default 0xffc02000 if DEBUG_SOCFPGA_UART
1403 default 0xffd82340 if ARCH_IOP13XX
1404 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1405 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1406 default 0xfff36000 if DEBUG_HIGHBANK_UART
1407 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1408 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1409 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1410 default 0xfffe8600 if DEBUG_UART_BCM63XX
1411 default 0xfffff700 if ARCH_IOP33X
1412 depends on ARCH_EP93XX || \
1413 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1414 DEBUG_LL_UART_EFM32 || \
1415 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1416 DEBUG_NETX_UART || \
1417 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1418 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1419 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1420 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1421 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1422 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1423 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1425 config DEBUG_UART_VIRT
1426 hex "Virtual base address of debug UART"
1427 default 0xe0000a00 if DEBUG_NETX_UART
1428 default 0xe0010fe0 if ARCH_RPC
1429 default 0xf0000be0 if ARCH_EBSA110
1430 default 0xf0010000 if DEBUG_ASM9260_UART
1431 default 0xf01fb000 if DEBUG_NOMADIK_UART
1432 default 0xf0201000 if DEBUG_BCM2835
1433 default 0xf1000300 if DEBUG_BCM_5301X
1434 default 0xf1002000 if DEBUG_MT8127_UART0
1435 default 0xf1006000 if DEBUG_MT6589_UART0
1436 default 0xf1009000 if DEBUG_MT8135_UART3
1437 default 0xf11f1000 if ARCH_VERSATILE
1438 default 0xf1600000 if ARCH_INTEGRATOR
1439 default 0xf1c28000 if DEBUG_SUNXI_UART0
1440 default 0xf1c28400 if DEBUG_SUNXI_UART1
1441 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1442 default 0xf6200000 if DEBUG_PXA_UART1
1443 default 0xf4090000 if ARCH_LPC32XX
1444 default 0xf4200000 if ARCH_GEMINI
1445 default 0xf7000000 if DEBUG_SUN9I_UART0
1446 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1447 DEBUG_S3C2410_UART0)
1448 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1449 DEBUG_S3C2410_UART1)
1450 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1451 DEBUG_S3C2410_UART2)
1452 default 0xf7fc9000 if DEBUG_BERLIN_UART
1453 default 0xf8007000 if DEBUG_HIP04_UART
1454 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1455 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1456 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1457 default 0xfb002000 if DEBUG_CNS3XXX
1458 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1459 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1460 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1461 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1462 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1463 default 0xfd000000 if ARCH_SPEAR13XX
1464 default 0xfd012000 if ARCH_MV78XX0
1465 default 0xfde12000 if ARCH_DOVE
1466 default 0xfe012000 if ARCH_ORION5X
1467 default 0xf31004c0 if DEBUG_MESON_UARTAO
1468 default 0xfe017000 if DEBUG_MMP_UART2
1469 default 0xfe018000 if DEBUG_MMP_UART3
1470 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1471 default 0xfe230000 if DEBUG_PICOXCELL_UART
1472 default 0xfe300000 if DEBUG_BCM_KONA_UART
1473 default 0xfe800000 if ARCH_IOP32X
1474 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1475 default 0xfeb24000 if DEBUG_RK3X_UART0
1476 default 0xfeb26000 if DEBUG_RK3X_UART1
1477 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1478 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1479 default 0xfec02000 if DEBUG_SOCFPGA_UART
1480 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1481 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1482 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1483 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1484 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1485 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1486 default 0xfec90000 if DEBUG_RK32_UART2
1487 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1488 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1489 default 0xfed60000 if DEBUG_RK29_UART0
1490 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1491 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1492 default 0xfedc0000 if ARCH_EP93XX
1493 default 0xfee003f8 if FOOTBRIDGE
1494 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1495 default 0xfee82340 if ARCH_IOP13XX
1496 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1497 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1498 default 0xfef36000 if DEBUG_HIGHBANK_UART
1499 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1500 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1501 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1502 default 0xfefff700 if ARCH_IOP33X
1503 default 0xff003000 if DEBUG_U300_UART
1504 default 0xffd01000 if DEBUG_HIP01_UART
1505 default DEBUG_UART_PHYS if !MMU
1506 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1507 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1508 DEBUG_NETX_UART || \
1509 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1510 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1511 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1513 config DEBUG_UART_8250_SHIFT
1514 int "Register offset shift for the 8250 debug UART"
1515 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1516 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
1517 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1520 config DEBUG_UART_8250_WORD
1521 bool "Use 32-bit accesses for 8250 UART"
1522 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1523 depends on DEBUG_UART_8250_SHIFT >= 2
1524 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1526 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1527 DEBUG_DAVINCI_DA8XX_UART2 || \
1528 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1531 config DEBUG_UART_8250_FLOW_CONTROL
1532 bool "Enable flow control for 8250 UART"
1533 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1534 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1536 config DEBUG_UNCOMPRESS
1538 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG
1539 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1540 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1542 This option influences the normal decompressor output for
1543 multiplatform kernels. Normally, multiplatform kernels disable
1544 decompressor output because it is not possible to know where to
1545 send the decompressor output.
1547 When this option is set, the selected DEBUG_LL output method
1548 will be re-used for normal decompressor output on multiplatform
1552 config UNCOMPRESS_INCLUDE
1554 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1555 PLAT_SAMSUNG || ARCH_EFM32
1556 default "mach/uncompress.h"
1562 Say Y here if you want to have an early console using the
1563 kernel low-level debugging functions. Add earlyprintk to your
1564 kernel parameters to enable this console.
1566 config ARM_KPROBES_TEST
1567 tristate "Kprobes test module"
1568 depends on KPROBES && MODULES
1570 Perform tests of kprobes API and instruction set simulation.
1572 config PID_IN_CONTEXTIDR
1573 bool "Write the current PID to the CONTEXTIDR register"
1574 depends on CPU_COPY_V6
1576 Enabling this option causes the kernel to write the current PID to
1577 the PROCID field of the CONTEXTIDR register, at the expense of some
1578 additional instructions during context switch. Say Y here only if you
1579 are planning to use hardware trace tools with this kernel.
1581 config DEBUG_SET_MODULE_RONX
1582 bool "Set loadable kernel module data as NX and text as RO"
1585 This option helps catch unintended modifications to loadable
1586 kernel module's text and read-only data. It also prevents execution
1587 of module data. Such protection may interfere with run-time code
1588 patching and dynamic kernel tracing - and they might also protect
1589 against certain classes of kernel exploits.
1590 If in doubt, say "N".
1592 menuconfig CORESIGHT
1593 bool "CoreSight Tracing Support"
1596 This framework provides a kernel interface for the CoreSight debug
1597 and trace drivers to register themselves with. It's intended to build
1598 a topological view of the CoreSight components based on a DT
1599 specification and configure the right serie of components when a
1600 trace source gets enabled.
1603 config CORESIGHT_LINKS_AND_SINKS
1604 bool "CoreSight Link and Sink drivers"
1606 This enables support for CoreSight link and sink drivers that are
1607 responsible for transporting and collecting the trace data
1608 respectively. Link and sinks are dynamically aggregated with a trace
1609 entity at run time to form a complete trace path.
1611 config CORESIGHT_LINK_AND_SINK_TMC
1612 bool "Coresight generic TMC driver"
1613 depends on CORESIGHT_LINKS_AND_SINKS
1615 This enables support for the Trace Memory Controller driver. Depending
1616 on its configuration the device can act as a link (embedded trace router
1617 - ETR) or sink (embedded trace FIFO). The driver complies with the
1618 generic implementation of the component without special enhancement or
1621 config CORESIGHT_SINK_TPIU
1622 bool "Coresight generic TPIU driver"
1623 depends on CORESIGHT_LINKS_AND_SINKS
1625 This enables support for the Trace Port Interface Unit driver, responsible
1626 for bridging the gap between the on-chip coresight components and a trace
1627 port collection engine, typically connected to an external host for use
1628 case capturing more traces than the on-board coresight memory can handle.
1630 config CORESIGHT_SINK_ETBV10
1631 bool "Coresight ETBv1.0 driver"
1632 depends on CORESIGHT_LINKS_AND_SINKS
1634 This enables support for the Embedded Trace Buffer version 1.0 driver
1635 that complies with the generic implementation of the component without
1636 special enhancement or added features.
1638 config CORESIGHT_SOURCE_ETM3X
1639 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1640 select CORESIGHT_LINKS_AND_SINKS
1642 This driver provides support for processor ETM3.x and PTM1.x modules,
1643 which allows tracing the instructions that a processor is executing
1644 This is primarily useful for instruction level tracing. Depending
1645 the ETM version data tracing may also be available.