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
120 depends on HAVE_AT91_DBGU0
122 config AT91_DEBUG_LL_DBGU1
123 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
124 select DEBUG_AT91_UART
125 depends on HAVE_AT91_DBGU1
127 config AT91_DEBUG_LL_DBGU2
128 bool "Kernel low-level debugging on sama5d4"
129 select DEBUG_AT91_UART
130 depends on HAVE_AT91_DBGU2
133 bool "Kernel low-level debugging on BCM2835 PL011 UART"
134 depends on ARCH_BCM2835
135 select DEBUG_UART_PL01X
137 config DEBUG_BCM_5301X
138 bool "Kernel low-level debugging on BCM5301X UART1"
139 depends on ARCH_BCM_5301X
140 select DEBUG_UART_8250
142 config DEBUG_BCM_KONA_UART
143 bool "Kernel low-level debugging messages via BCM KONA UART"
144 depends on ARCH_BCM_MOBILE
145 select DEBUG_UART_8250
147 Say Y here if you want kernel low-level debugging support
148 on Broadcom SoC platforms.
149 This low level debug works for Broadcom
150 mobile SoCs in the Kona family of chips (e.g. bcm28155,
154 bool "Kernel low-level debugging on BCM63XX UART"
155 depends on ARCH_BCM_63XX
156 select DEBUG_UART_BCM63XX
158 config DEBUG_BERLIN_UART
159 bool "Marvell Berlin SoC Debug UART"
160 depends on ARCH_BERLIN
161 select DEBUG_UART_8250
163 Say Y here if you want kernel low-level debugging support
164 on Marvell Berlin SoC based platforms.
166 config DEBUG_BRCMSTB_UART
167 bool "Use BRCMSTB UART for low-level debug"
168 depends on ARCH_BRCMSTB
169 select DEBUG_UART_8250
171 Say Y here if you want the debug print routines to direct
172 their output to the first serial port on these devices.
174 If you have a Broadcom STB chip and would like early print
175 messages to appear over the UART, select this option.
177 config DEBUG_CLPS711X_UART1
178 bool "Kernel low-level debugging messages via UART1"
179 depends on ARCH_CLPS711X
181 Say Y here if you want the debug print routines to direct
182 their output to the first serial port on these devices.
184 config DEBUG_CLPS711X_UART2
185 bool "Kernel low-level debugging messages via UART2"
186 depends on ARCH_CLPS711X
188 Say Y here if you want the debug print routines to direct
189 their output to the second serial port on these devices.
192 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
193 depends on ARCH_CNS3XXX
194 select DEBUG_UART_8250
196 Say Y here if you want the debug print routines to direct
197 their output to the CNS3xxx UART0.
199 config DEBUG_DAVINCI_DA8XX_UART1
200 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
201 depends on ARCH_DAVINCI_DA8XX
202 select DEBUG_UART_8250
204 Say Y here if you want the debug print routines to direct
205 their output to UART1 serial port on DaVinci DA8XX devices.
207 config DEBUG_DAVINCI_DA8XX_UART2
208 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
209 depends on ARCH_DAVINCI_DA8XX
210 select DEBUG_UART_8250
212 Say Y here if you want the debug print routines to direct
213 their output to UART2 serial port on DaVinci DA8XX devices.
215 config DEBUG_DAVINCI_DMx_UART0
216 bool "Kernel low-level debugging on DaVinci DMx using UART0"
217 depends on ARCH_DAVINCI_DMx
218 select DEBUG_UART_8250
220 Say Y here if you want the debug print routines to direct
221 their output to UART0 serial port on DaVinci DMx devices.
223 config DEBUG_ZYNQ_UART0
224 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
227 Say Y here if you want the debug print routines to direct
228 their output to UART0 on the Zynq platform.
230 config DEBUG_ZYNQ_UART1
231 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
234 Say Y here if you want the debug print routines to direct
235 their output to UART1 on the Zynq platform.
237 If you have a ZC702 board and want early boot messages to
238 appear on the USB serial adaptor, select this option.
240 config DEBUG_DC21285_PORT
241 bool "Kernel low-level debugging messages via footbridge serial port"
242 depends on FOOTBRIDGE
244 Say Y here if you want the debug print routines to direct
245 their output to the serial port in the DC21285 (Footbridge).
247 config DEBUG_FOOTBRIDGE_COM1
248 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
249 depends on FOOTBRIDGE
251 Say Y here if you want the debug print routines to direct
252 their output to the 8250 at PCI COM1.
254 config DEBUG_HI3620_UART
255 bool "Hisilicon HI3620 Debug UART"
256 depends on ARCH_HI3xxx
257 select DEBUG_UART_PL01X
259 Say Y here if you want kernel low-level debugging support
262 config DEBUG_HI3716_UART
263 bool "Hisilicon Hi3716 Debug UART"
264 depends on ARCH_HI3xxx
265 select DEBUG_UART_PL01X
267 Say Y here if you want kernel low-level debugging support
270 config DEBUG_HIGHBANK_UART
271 bool "Kernel low-level debugging messages via Highbank UART"
272 depends on ARCH_HIGHBANK
273 select DEBUG_UART_PL01X
275 Say Y here if you want the debug print routines to direct
276 their output to the UART on Highbank based devices.
278 config DEBUG_HIP04_UART
279 bool "Hisilicon HiP04 Debug UART"
280 depends on ARCH_HIP04
281 select DEBUG_UART_8250
283 Say Y here if you want kernel low-level debugging support
286 config DEBUG_HIX5HD2_UART
287 bool "Hisilicon Hix5hd2 Debug UART"
288 depends on ARCH_HIX5HD2
289 select DEBUG_UART_PL01X
291 Say Y here if you want kernel low-level debugging support
294 config DEBUG_IMX1_UART
295 bool "i.MX1 Debug UART"
298 Say Y here if you want kernel low-level debugging support
301 config DEBUG_IMX23_UART
302 bool "i.MX23 Debug UART"
304 select DEBUG_UART_PL01X
306 Say Y here if you want kernel low-level debugging support
309 config DEBUG_IMX25_UART
310 bool "i.MX25 Debug UART"
313 Say Y here if you want kernel low-level debugging support
316 config DEBUG_IMX21_IMX27_UART
317 bool "i.MX21 and i.MX27 Debug UART"
318 depends on SOC_IMX21 || SOC_IMX27
320 Say Y here if you want kernel low-level debugging support
323 config DEBUG_IMX28_UART
324 bool "i.MX28 Debug UART"
326 select DEBUG_UART_PL01X
328 Say Y here if you want kernel low-level debugging support
331 config DEBUG_IMX31_UART
332 bool "i.MX31 Debug UART"
335 Say Y here if you want kernel low-level debugging support
338 config DEBUG_IMX35_UART
339 bool "i.MX35 Debug UART"
342 Say Y here if you want kernel low-level debugging support
345 config DEBUG_IMX50_UART
346 bool "i.MX50 Debug UART"
349 Say Y here if you want kernel low-level debugging support
352 config DEBUG_IMX51_UART
353 bool "i.MX51 Debug UART"
356 Say Y here if you want kernel low-level debugging support
359 config DEBUG_IMX53_UART
360 bool "i.MX53 Debug UART"
363 Say Y here if you want kernel low-level debugging support
366 config DEBUG_IMX6Q_UART
367 bool "i.MX6Q/DL Debug UART"
370 Say Y here if you want kernel low-level debugging support
373 config DEBUG_IMX6SL_UART
374 bool "i.MX6SL Debug UART"
375 depends on SOC_IMX6SL
377 Say Y here if you want kernel low-level debugging support
380 config DEBUG_IMX6SX_UART
381 bool "i.MX6SX Debug UART"
382 depends on SOC_IMX6SX
384 Say Y here if you want kernel low-level debugging support
387 config DEBUG_KEYSTONE_UART0
388 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
389 depends on ARCH_KEYSTONE
390 select DEBUG_UART_8250
392 Say Y here if you want the debug print routines to direct
393 their output to UART0 serial port on KEYSTONE2 devices.
395 config DEBUG_KEYSTONE_UART1
396 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
397 depends on ARCH_KEYSTONE
398 select DEBUG_UART_8250
400 Say Y here if you want the debug print routines to direct
401 their output to UART1 serial port on KEYSTONE2 devices.
403 config DEBUG_KS8695_UART
404 bool "KS8695 Debug UART"
405 depends on ARCH_KS8695
407 Say Y here if you want kernel low-level debugging support
410 config DEBUG_MESON_UARTAO
411 bool "Kernel low-level debugging via Meson6 UARTAO"
412 depends on ARCH_MESON
414 Say Y here if you want kernel low-lever debugging support
415 on Amlogic Meson6 based platforms on the UARTAO.
417 config DEBUG_MMP_UART2
418 bool "Kernel low-level debugging message via MMP UART2"
420 select DEBUG_UART_8250
422 Say Y here if you want kernel low-level debugging support
425 config DEBUG_MMP_UART3
426 bool "Kernel low-level debugging message via MMP UART3"
428 select DEBUG_UART_8250
430 Say Y here if you want kernel low-level debugging support
433 config DEBUG_MSM_UART
434 bool "Kernel low-level debugging messages via MSM UART"
437 Say Y here if you want the debug print routines to direct
438 their output to the serial port on MSM devices.
440 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
441 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
442 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
443 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
445 MSM7X30 0xaca00000 0xe1000000 UART1
446 MSM7X30 0xacb00000 0xe1000000 UART2
447 MSM7X30 0xacc00000 0xe1000000 UART3
449 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
450 options based on your needs.
452 config DEBUG_QCOM_UARTDM
453 bool "Kernel low-level debugging messages via QCOM UARTDM"
456 Say Y here if you want the debug print routines to direct
457 their output to the serial port on Qualcomm devices.
459 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
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_UART
469 bool "Kernel low-level debugging messages via MVEBU UART (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.
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_UART_ALTERNATE
488 bool "Kernel low-level debugging messages via MVEBU UART (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.
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.
506 Say Y here if you want kernel low-level debugging support
507 on Vybrid based platforms.
509 config DEBUG_NETX_UART
510 bool "Kernel low-level debugging messages via NetX UART"
513 Say Y here if you want kernel low-level debugging support
514 on Hilscher NetX based platforms.
516 config DEBUG_NOMADIK_UART
517 bool "Kernel low-level debugging messages via NOMADIK UART"
518 depends on ARCH_NOMADIK
519 select DEBUG_UART_PL01X
521 Say Y here if you want kernel low-level debugging support
522 on NOMADIK based platforms.
524 config DEBUG_NSPIRE_CLASSIC_UART
525 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
526 depends on ARCH_NSPIRE
527 select DEBUG_UART_8250
529 Say Y here if you want kernel low-level debugging support
530 on TI-NSPIRE classic models.
532 config DEBUG_NSPIRE_CX_UART
533 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
534 depends on ARCH_NSPIRE
535 select DEBUG_UART_PL01X
537 Say Y here if you want kernel low-level debugging support
538 on TI-NSPIRE CX models.
540 config DEBUG_OMAP1UART1
541 bool "Kernel low-level debugging via OMAP1 UART1"
542 depends on ARCH_OMAP1
543 select DEBUG_UART_8250
545 Say Y here if you want kernel low-level debugging support
546 on OMAP1 based platforms (except OMAP730) on the UART1.
548 config DEBUG_OMAP1UART2
549 bool "Kernel low-level debugging via OMAP1 UART2"
550 depends on ARCH_OMAP1
551 select DEBUG_UART_8250
553 Say Y here if you want kernel low-level debugging support
554 on OMAP1 based platforms (except OMAP730) on the UART2.
556 config DEBUG_OMAP1UART3
557 bool "Kernel low-level debugging via OMAP1 UART3"
558 depends on ARCH_OMAP1
559 select DEBUG_UART_8250
561 Say Y here if you want kernel low-level debugging support
562 on OMAP1 based platforms (except OMAP730) on the UART3.
564 config DEBUG_OMAP2UART1
565 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
566 depends on ARCH_OMAP2PLUS
567 select DEBUG_OMAP2PLUS_UART
569 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
570 omap3 torpedo and 3530 lv som.
572 config DEBUG_OMAP2UART2
573 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
574 depends on ARCH_OMAP2PLUS
575 select DEBUG_OMAP2PLUS_UART
577 config DEBUG_OMAP2UART3
578 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
579 depends on ARCH_OMAP2PLUS
580 select DEBUG_OMAP2PLUS_UART
582 config DEBUG_OMAP3UART3
583 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
584 depends on ARCH_OMAP2PLUS
585 select DEBUG_OMAP2PLUS_UART
587 This covers at least cm_t3x, beagle, crane, devkit8000,
588 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
591 config DEBUG_OMAP4UART3
592 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
593 depends on ARCH_OMAP2PLUS
594 select DEBUG_OMAP2PLUS_UART
596 config DEBUG_OMAP3UART4
597 bool "Kernel low-level debugging messages via OMAP36XX UART4"
598 depends on ARCH_OMAP2PLUS
599 select DEBUG_OMAP2PLUS_UART
601 config DEBUG_OMAP4UART4
602 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
603 depends on ARCH_OMAP2PLUS
604 select DEBUG_OMAP2PLUS_UART
606 config DEBUG_OMAP7XXUART1
607 bool "Kernel low-level debugging via OMAP730 UART1"
608 depends on ARCH_OMAP730
609 select DEBUG_UART_8250
611 Say Y here if you want kernel low-level debugging support
612 on OMAP730 based platforms on the UART1.
614 config DEBUG_OMAP7XXUART2
615 bool "Kernel low-level debugging via OMAP730 UART2"
616 depends on ARCH_OMAP730
617 select DEBUG_UART_8250
619 Say Y here if you want kernel low-level debugging support
620 on OMAP730 based platforms on the UART2.
622 config DEBUG_OMAP7XXUART3
623 bool "Kernel low-level debugging via OMAP730 UART3"
624 depends on ARCH_OMAP730
625 select DEBUG_UART_8250
627 Say Y here if you want kernel low-level debugging support
628 on OMAP730 based platforms on the UART3.
630 config DEBUG_TI81XXUART1
631 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
632 depends on ARCH_OMAP2PLUS
633 select DEBUG_OMAP2PLUS_UART
635 config DEBUG_TI81XXUART2
636 bool "Kernel low-level debugging messages via TI81XX UART2"
637 depends on ARCH_OMAP2PLUS
638 select DEBUG_OMAP2PLUS_UART
640 config DEBUG_TI81XXUART3
641 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
642 depends on ARCH_OMAP2PLUS
643 select DEBUG_OMAP2PLUS_UART
645 config DEBUG_AM33XXUART1
646 bool "Kernel low-level debugging messages via AM33XX UART1"
647 depends on ARCH_OMAP2PLUS
648 select DEBUG_OMAP2PLUS_UART
650 config DEBUG_ZOOM_UART
651 bool "Kernel low-level debugging messages via Zoom2/3 UART"
652 depends on ARCH_OMAP2PLUS
653 select DEBUG_OMAP2PLUS_UART
655 config DEBUG_PICOXCELL_UART
656 depends on ARCH_PICOXCELL
657 bool "Use PicoXcell UART for low-level debug"
658 select DEBUG_UART_8250
660 Say Y here if you want kernel low-level debugging support
661 on PicoXcell based platforms.
663 config DEBUG_PXA_UART1
665 bool "Use PXA UART1 for low-level debug"
666 select DEBUG_UART_8250
668 Say Y here if you want kernel low-level debugging support
671 config DEBUG_REALVIEW_STD_PORT
672 bool "RealView Default UART"
673 depends on ARCH_REALVIEW
674 select DEBUG_UART_PL01X
676 Say Y here if you want the debug print routines to direct
677 their output to the serial port on RealView EB, PB11MP, PBA8
680 config DEBUG_REALVIEW_PB1176_PORT
681 bool "RealView PB1176 UART"
682 depends on MACH_REALVIEW_PB1176
683 select DEBUG_UART_PL01X
685 Say Y here if you want the debug print routines to direct
686 their output to the standard serial port on the RealView
689 config DEBUG_RK29_UART0
690 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
691 depends on ARCH_ROCKCHIP
692 select DEBUG_UART_8250
694 Say Y here if you want kernel low-level debugging support
695 on Rockchip based platforms.
697 config DEBUG_RK29_UART1
698 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
699 depends on ARCH_ROCKCHIP
700 select DEBUG_UART_8250
702 Say Y here if you want kernel low-level debugging support
703 on Rockchip based platforms.
705 config DEBUG_RK29_UART2
706 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
707 depends on ARCH_ROCKCHIP
708 select DEBUG_UART_8250
710 Say Y here if you want kernel low-level debugging support
711 on Rockchip based platforms.
713 config DEBUG_RK3X_UART0
714 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
715 depends on ARCH_ROCKCHIP
716 select DEBUG_UART_8250
718 Say Y here if you want kernel low-level debugging support
719 on Rockchip based platforms.
721 config DEBUG_RK3X_UART1
722 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
723 depends on ARCH_ROCKCHIP
724 select DEBUG_UART_8250
726 Say Y here if you want kernel low-level debugging support
727 on Rockchip based platforms.
729 config DEBUG_RK3X_UART2
730 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
731 depends on ARCH_ROCKCHIP
732 select DEBUG_UART_8250
734 Say Y here if you want kernel low-level debugging support
735 on Rockchip based platforms.
737 config DEBUG_RK3X_UART3
738 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
739 depends on ARCH_ROCKCHIP
740 select DEBUG_UART_8250
742 Say Y here if you want kernel low-level debugging support
743 on Rockchip based platforms.
745 config DEBUG_RK32_UART2
746 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
747 depends on ARCH_ROCKCHIP
748 select DEBUG_UART_8250
750 Say Y here if you want kernel low-level debugging support
751 on Rockchip RK32xx based platforms.
753 config DEBUG_R7S72100_SCIF2
754 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
755 depends on ARCH_R7S72100
757 Say Y here if you want kernel low-level debugging support
758 via SCIF2 on Renesas RZ/A1H (R7S72100).
760 config DEBUG_RCAR_GEN1_SCIF0
761 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
762 depends on ARCH_R8A7778
764 Say Y here if you want kernel low-level debugging support
765 via SCIF0 on Renesas R-Car M1A (R8A7778).
767 config DEBUG_RCAR_GEN1_SCIF2
768 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
769 depends on ARCH_R8A7779
771 Say Y here if you want kernel low-level debugging support
772 via SCIF2 on Renesas R-Car H1 (R8A7779).
774 config DEBUG_RCAR_GEN2_SCIF0
775 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
776 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
778 Say Y here if you want kernel low-level debugging support
779 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
782 config DEBUG_RCAR_GEN2_SCIF2
783 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
784 depends on ARCH_R8A7794
786 Say Y here if you want kernel low-level debugging support
787 via SCIF2 on Renesas R-Car E2 (R8A7794).
789 config DEBUG_RMOBILE_SCIFA0
790 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
791 depends on ARCH_R8A73A4 || ARCH_SH7372
793 Say Y here if you want kernel low-level debugging support
794 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
797 config DEBUG_RMOBILE_SCIFA1
798 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
799 depends on ARCH_R8A7740
801 Say Y here if you want kernel low-level debugging support
802 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
804 config DEBUG_RMOBILE_SCIFA4
805 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
806 depends on ARCH_SH73A0
808 Say Y here if you want kernel low-level debugging support
809 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
811 config DEBUG_S3C_UART0
812 depends on PLAT_SAMSUNG
813 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
814 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
815 select DEBUG_S5PV210_UART if ARCH_S5PV210
816 bool "Use Samsung S3C UART 0 for low-level debug"
818 Say Y here if you want the debug print routines to direct
819 their output to UART 0. The port must have been initialised
820 by the boot-loader before use.
822 config DEBUG_S3C_UART1
823 depends on PLAT_SAMSUNG
824 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
825 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
826 select DEBUG_S5PV210_UART if ARCH_S5PV210
827 bool "Use Samsung S3C UART 1 for low-level debug"
829 Say Y here if you want the debug print routines to direct
830 their output to UART 1. The port must have been initialised
831 by the boot-loader before use.
833 config DEBUG_S3C_UART2
834 depends on PLAT_SAMSUNG
835 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
836 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
837 select DEBUG_S5PV210_UART if ARCH_S5PV210
838 bool "Use Samsung S3C UART 2 for low-level debug"
840 Say Y here if you want the debug print routines to direct
841 their output to UART 2. The port must have been initialised
842 by the boot-loader before use.
844 config DEBUG_S3C_UART3
845 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
846 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
847 select DEBUG_S5PV210_UART if ARCH_S5PV210
848 bool "Use Samsung S3C UART 3 for low-level debug"
850 Say Y here if you want the debug print routines to direct
851 their output to UART 3. The port must have been initialised
852 by the boot-loader before use.
854 config DEBUG_S3C2410_UART0
855 depends on ARCH_S3C24XX
856 select DEBUG_S3C2410_UART
857 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
859 Say Y here if you want the debug print routines to direct
860 their output to UART 0. The port must have been initialised
861 by the boot-loader before use.
863 config DEBUG_S3C2410_UART1
864 depends on ARCH_S3C24XX
865 select DEBUG_S3C2410_UART
866 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
868 Say Y here if you want the debug print routines to direct
869 their output to UART 1. The port must have been initialised
870 by the boot-loader before use.
872 config DEBUG_S3C2410_UART2
873 depends on ARCH_S3C24XX
874 select DEBUG_S3C2410_UART
875 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
877 Say Y here if you want the debug print routines to direct
878 their output to UART 2. The port must have been initialised
879 by the boot-loader before use.
882 depends on ARCH_SA1100
883 bool "Use SA1100 UARTs for low-level debug"
885 Say Y here if you want kernel low-level debugging support
886 on SA-11x0 UART ports. The kernel will check for the first
887 enabled UART in a sequence 3-1-2.
889 config DEBUG_SOCFPGA_UART
890 depends on ARCH_SOCFPGA
891 bool "Use SOCFPGA UART for low-level debug"
892 select DEBUG_UART_8250
894 Say Y here if you want kernel low-level debugging support
895 on SOCFPGA based platforms.
897 config DEBUG_SUN9I_UART0
898 bool "Kernel low-level debugging messages via sun9i UART0"
899 depends on MACH_SUN9I
900 select DEBUG_UART_8250
902 Say Y here if you want kernel low-level debugging support
903 on Allwinner A80 based platforms on the UART0.
905 config DEBUG_SUNXI_UART0
906 bool "Kernel low-level debugging messages via sunXi UART0"
907 depends on ARCH_SUNXI
908 select DEBUG_UART_8250
910 Say Y here if you want kernel low-level debugging support
911 on Allwinner A1X based platforms on the UART0.
913 config DEBUG_SUNXI_UART1
914 bool "Kernel low-level debugging messages via sunXi UART1"
915 depends on ARCH_SUNXI
916 select DEBUG_UART_8250
918 Say Y here if you want kernel low-level debugging support
919 on Allwinner A1X based platforms on the UART1.
921 config DEBUG_SUNXI_R_UART
922 bool "Kernel low-level debugging messages via sunXi R_UART"
923 depends on MACH_SUN6I || MACH_SUN8I
924 select DEBUG_UART_8250
926 Say Y here if you want kernel low-level debugging support
927 on Allwinner A31/A23 based platforms on the R_UART.
929 config TEGRA_DEBUG_UART_AUTO_ODMDATA
930 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
931 depends on ARCH_TEGRA
932 select DEBUG_TEGRA_UART
934 Automatically determines which UART to use for low-level
935 debug based on the ODMDATA value. This value is part of
936 the BCT, and is written to the boot memory device using
937 nvflash, or other flashing tool. When bits 19:18 are 3,
938 then bits 17:15 indicate which UART to use; 0/1/2/3/4
941 config TEGRA_DEBUG_UARTA
942 bool "Kernel low-level debugging messages via Tegra UART A"
943 depends on ARCH_TEGRA
944 select DEBUG_TEGRA_UART
946 Say Y here if you want kernel low-level debugging support
947 on Tegra based platforms.
949 config TEGRA_DEBUG_UARTB
950 bool "Kernel low-level debugging messages via Tegra UART B"
951 depends on ARCH_TEGRA
952 select DEBUG_TEGRA_UART
954 Say Y here if you want kernel low-level debugging support
955 on Tegra based platforms.
957 config TEGRA_DEBUG_UARTC
958 bool "Kernel low-level debugging messages via Tegra UART C"
959 depends on ARCH_TEGRA
960 select DEBUG_TEGRA_UART
962 Say Y here if you want kernel low-level debugging support
963 on Tegra based platforms.
965 config TEGRA_DEBUG_UARTD
966 bool "Kernel low-level debugging messages via Tegra UART D"
967 depends on ARCH_TEGRA
968 select DEBUG_TEGRA_UART
970 Say Y here if you want kernel low-level debugging support
971 on Tegra based platforms.
973 config TEGRA_DEBUG_UARTE
974 bool "Kernel low-level debugging messages via Tegra UART E"
975 depends on ARCH_TEGRA
976 select DEBUG_TEGRA_UART
978 Say Y here if you want kernel low-level debugging support
979 on Tegra based platforms.
981 config DEBUG_SIRFPRIMA2_UART1
982 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
983 depends on ARCH_PRIMA2
985 Say Y here if you want the debug print routines to direct
986 their output to the uart1 port on SiRFprimaII devices.
988 config DEBUG_SIRFMARCO_UART1
989 bool "Kernel low-level debugging messages via SiRFmarco UART1"
990 depends on ARCH_MARCO
992 Say Y here if you want the debug print routines to direct
993 their output to the uart1 port on SiRFmarco devices.
995 config STIH41X_DEBUG_ASC2
996 bool "Use StiH415/416 ASC2 UART for low-level debug"
998 select DEBUG_STI_UART
1000 Say Y here if you want kernel low-level debugging support
1001 on STiH415/416 based platforms like b2000, which has
1002 default UART wired up to ASC2.
1006 config STIH41X_DEBUG_SBC_ASC1
1007 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1009 select DEBUG_STI_UART
1011 Say Y here if you want kernel low-level debugging support
1012 on STiH415/416 based platforms like b2020. which has
1013 default UART wired up to SBC ASC1.
1017 config DEBUG_U300_UART
1018 bool "Kernel low-level debugging messages via U300 UART0"
1019 depends on ARCH_U300
1020 select DEBUG_UART_PL01X
1022 Say Y here if you want the debug print routines to direct
1023 their output to the uart port on U300 devices.
1025 config DEBUG_UX500_UART
1026 depends on ARCH_U8500
1027 bool "Use Ux500 UART for low-level debug"
1029 Say Y here if you want kernel low-level debugging support
1030 on Ux500 based platforms.
1032 config DEBUG_MT6589_UART0
1033 bool "Mediatek mt6589 UART0"
1034 depends on ARCH_MEDIATEK
1035 select DEBUG_UART_8250
1037 Say Y here if you want kernel low-level debugging support
1038 for Mediatek mt6589 based platforms on UART0.
1040 config DEBUG_MT8127_UART0
1041 bool "Mediatek mt8127 UART0"
1042 depends on ARCH_MEDIATEK
1043 select DEBUG_UART_8250
1045 Say Y here if you want kernel low-level debugging support
1046 for Mediatek mt8127 based platforms on UART0.
1048 config DEBUG_MT8135_UART3
1049 bool "Mediatek mt8135 UART3"
1050 depends on ARCH_MEDIATEK
1051 select DEBUG_UART_8250
1053 Say Y here if you want kernel low-level debugging support
1054 for Mediatek mt8135 based platforms on UART3.
1056 config DEBUG_VEXPRESS_UART0_DETECT
1057 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1058 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1060 This option enables a simple heuristic which tries to determine
1061 the motherboard's memory map variant (original or RS1) and then
1062 choose the relevant UART0 base address.
1064 Note that this will only work with standard A-class core tiles,
1065 and may fail with non-standard SMM or custom software models.
1067 config DEBUG_VEXPRESS_UART0_CA9
1068 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1069 depends on ARCH_VEXPRESS
1070 select DEBUG_UART_PL01X
1072 This option selects UART0 at 0x10009000. Except for custom models,
1073 this applies only to the V2P-CA9 tile.
1075 config DEBUG_VEXPRESS_UART0_RS1
1076 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1077 depends on ARCH_VEXPRESS
1078 select DEBUG_UART_PL01X
1080 This option selects UART0 at 0x1c090000. This applies to most
1081 of the tiles using the RS1 memory map, including all new A-class
1082 core tiles, FPGA-based SMMs and software models.
1084 config DEBUG_VEXPRESS_UART0_CRX
1085 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1086 depends on ARCH_VEXPRESS && !MMU
1087 select DEBUG_UART_PL01X
1089 This option selects UART0 at 0xb0090000. This is appropriate for
1090 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1092 config DEBUG_VT8500_UART0
1093 bool "Use UART0 on VIA/Wondermedia SoCs"
1094 depends on ARCH_VT8500
1096 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1097 devices, including VT8500, WM8505, WM8650 and WM8850.
1100 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1102 Say Y here if you want the debug print routines to direct
1103 their output to the EmbeddedICE macrocell's DCC channel using
1104 co-processor 14. This is known to work on the ARM9 style ICE
1105 channel and on the XScale with the PEEDI.
1107 Note that the system will appear to hang during boot if there
1108 is nothing connected to read from the DCC.
1110 config DEBUG_SEMIHOSTING
1111 bool "Kernel low-level debug output via semihosting I/O"
1113 Semihosting enables code running on an ARM target to use
1114 the I/O facilities on a host debugger/emulator through a
1115 simple SVC call. The host debugger or emulator must have
1116 semihosting enabled for the special svc call to be trapped
1117 otherwise the kernel will crash.
1119 This is known to work with OpenOCD, as well as
1120 ARM's Fast Models, or any other controlling environment
1121 that implements semihosting.
1123 For more details about semihosting, please see
1124 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1126 config DEBUG_LL_UART_8250
1127 bool "Kernel low-level debugging via 8250 UART"
1129 Say Y here if you wish the debug print routes to direct
1130 their output to an 8250 UART. You can use this option
1131 to provide the parameters for the 8250 UART rather than
1132 selecting one of the platform specific options above if
1133 you know the parameters for the port.
1135 This option is preferred over the platform specific
1136 options; the platform specific options are deprecated
1137 and will be soon removed.
1139 config DEBUG_LL_UART_EFM32
1140 bool "Kernel low-level debugging via efm32 UART"
1141 depends on ARCH_EFM32
1143 Say Y here if you want the debug print routines to direct
1144 their output to an UART or USART port on efm32 based
1145 machines. Use the following addresses for DEBUG_UART_PHYS:
1153 config DEBUG_LL_UART_PL01X
1154 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1156 Say Y here if you wish the debug print routes to direct
1157 their output to a PL01x Primecell UART. You can use
1158 this option to provide the parameters for the UART
1159 rather than selecting one of the platform specific
1160 options above if 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.
1168 config DEBUG_EXYNOS_UART
1171 config DEBUG_S3C2410_UART
1173 select DEBUG_S3C24XX_UART
1175 config DEBUG_S3C24XX_UART
1178 config DEBUG_S5PV210_UART
1181 config DEBUG_OMAP2PLUS_UART
1183 depends on ARCH_OMAP2PLUS
1185 config DEBUG_IMX_UART_PORT
1186 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1187 DEBUG_IMX25_UART || \
1188 DEBUG_IMX21_IMX27_UART || \
1189 DEBUG_IMX31_UART || \
1190 DEBUG_IMX35_UART || \
1191 DEBUG_IMX50_UART || \
1192 DEBUG_IMX51_UART || \
1193 DEBUG_IMX53_UART || \
1194 DEBUG_IMX6Q_UART || \
1195 DEBUG_IMX6SL_UART || \
1200 Choose UART port on which kernel low-level debug messages
1203 config DEBUG_VF_UART_PORT
1204 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1207 depends on SOC_VF610
1209 Choose UART port on which kernel low-level debug messages
1212 config DEBUG_TEGRA_UART
1214 depends on ARCH_TEGRA
1216 config DEBUG_STI_UART
1220 config DEBUG_LL_INCLUDE
1222 default "debug/sa1100.S" if DEBUG_SA1100
1223 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1224 default "debug/at91.S" if AT91_DEBUG_LL_DBGU0 || AT91_DEBUG_LL_DBGU1 || \
1226 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1227 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1228 default "debug/meson.S" if DEBUG_MESON_UARTAO
1229 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1230 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1231 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1232 default "debug/icedcc.S" if DEBUG_ICEDCC
1233 default "debug/imx.S" if DEBUG_IMX1_UART || \
1234 DEBUG_IMX25_UART || \
1235 DEBUG_IMX21_IMX27_UART || \
1236 DEBUG_IMX31_UART || \
1237 DEBUG_IMX35_UART || \
1238 DEBUG_IMX50_UART || \
1239 DEBUG_IMX51_UART || \
1240 DEBUG_IMX53_UART ||\
1241 DEBUG_IMX6Q_UART || \
1242 DEBUG_IMX6SL_UART || \
1244 default "debug/ks8695.S" if DEBUG_KS8695_UART
1245 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1246 default "debug/netx.S" if DEBUG_NETX_UART
1247 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1248 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1249 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1250 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1251 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1252 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1253 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1254 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1255 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1256 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1257 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1258 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1259 default "debug/sti.S" if DEBUG_STI_UART
1260 default "debug/tegra.S" if DEBUG_TEGRA_UART
1261 default "debug/ux500.S" if DEBUG_UX500_UART
1262 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1263 default "debug/vf.S" if DEBUG_VF_UART
1264 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1265 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1266 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1267 default "mach/debug-macro.S"
1269 # Compatibility options for PL01x
1270 config DEBUG_UART_PL01X
1273 # Compatibility options for 8250
1274 config DEBUG_UART_8250
1275 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1276 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1277 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1278 ARCH_IOP33X || ARCH_IXP4XX || \
1279 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1281 # Compatibility options for BCM63xx
1282 config DEBUG_UART_BCM63XX
1283 def_bool ARCH_BCM_63XX
1285 config DEBUG_UART_PHYS
1286 hex "Physical base address of debug UART"
1287 default 0x00100a00 if DEBUG_NETX_UART
1288 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1289 default 0x01c28000 if DEBUG_SUNXI_UART0
1290 default 0x01c28400 if DEBUG_SUNXI_UART1
1291 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1292 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1293 default 0x01f02800 if DEBUG_SUNXI_R_UART
1294 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1295 default 0x02531000 if DEBUG_KEYSTONE_UART1
1296 default 0x03010fe0 if ARCH_RPC
1297 default 0x07000000 if DEBUG_SUN9I_UART0
1298 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1299 DEBUG_VEXPRESS_UART0_CA9
1300 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1301 default 0x10124000 if DEBUG_RK3X_UART0
1302 default 0x10126000 if DEBUG_RK3X_UART1
1303 default 0x101f1000 if ARCH_VERSATILE
1304 default 0x101fb000 if DEBUG_NOMADIK_UART
1305 default 0x11002000 if DEBUG_MT8127_UART0
1306 default 0x11006000 if DEBUG_MT6589_UART0
1307 default 0x11009000 if DEBUG_MT8135_UART3
1308 default 0x16000000 if ARCH_INTEGRATOR
1309 default 0x18000300 if DEBUG_BCM_5301X
1310 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1311 default 0x20060000 if DEBUG_RK29_UART0
1312 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1313 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1314 default 0x20201000 if DEBUG_BCM2835
1315 default 0x3e000000 if DEBUG_BCM_KONA_UART
1316 default 0x4000e400 if DEBUG_LL_UART_EFM32
1317 default 0x40090000 if ARCH_LPC32XX
1318 default 0x40100000 if DEBUG_PXA_UART1
1319 default 0x42000000 if ARCH_GEMINI
1320 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1321 DEBUG_S3C2410_UART0)
1322 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1323 DEBUG_S3C2410_UART1)
1324 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1325 DEBUG_S3C2410_UART2)
1326 default 0x78000000 if DEBUG_CNS3XXX
1327 default 0x7c0003f8 if FOOTBRIDGE
1328 default 0x80010000 if DEBUG_ASM9260_UART
1329 default 0x80070000 if DEBUG_IMX23_UART
1330 default 0x80074000 if DEBUG_IMX28_UART
1331 default 0x80230000 if DEBUG_PICOXCELL_UART
1332 default 0x808c0000 if ARCH_EP93XX
1333 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1334 default 0xa9a00000 if DEBUG_MSM_UART
1335 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1336 default 0xc0013000 if DEBUG_U300_UART
1337 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1338 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1339 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1340 default 0xd0012000 if DEBUG_MVEBU_UART
1341 default 0xc81004c0 if DEBUG_MESON_UARTAO
1342 default 0xd4017000 if DEBUG_MMP_UART2
1343 default 0xd4018000 if DEBUG_MMP_UART3
1344 default 0xe0000000 if ARCH_SPEAR13XX
1345 default 0xe4007000 if DEBUG_HIP04_UART
1346 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1347 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1348 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1349 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1350 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1351 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1352 default 0xf0000be0 if ARCH_EBSA110
1353 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1354 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1355 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1357 default 0xf7fc9000 if DEBUG_BERLIN_UART
1358 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1359 default 0xf991e000 if DEBUG_QCOM_UARTDM
1360 default 0xfcb00000 if DEBUG_HI3620_UART
1361 default 0xfe800000 if ARCH_IOP32X
1362 default 0xff690000 if DEBUG_RK32_UART2
1363 default 0xffc02000 if DEBUG_SOCFPGA_UART
1364 default 0xffd82340 if ARCH_IOP13XX
1365 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1366 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1367 default 0xfff36000 if DEBUG_HIGHBANK_UART
1368 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1369 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1370 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1371 default 0xfffe8600 if DEBUG_UART_BCM63XX
1372 default 0xfffff700 if ARCH_IOP33X
1373 depends on ARCH_EP93XX || \
1374 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1375 DEBUG_LL_UART_EFM32 || \
1376 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1377 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1378 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1379 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1380 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1381 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1382 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1383 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1385 config DEBUG_UART_VIRT
1386 hex "Virtual base address of debug UART"
1387 default 0xe0000a00 if DEBUG_NETX_UART
1388 default 0xe0010fe0 if ARCH_RPC
1389 default 0xe1000000 if DEBUG_MSM_UART
1390 default 0xf0000be0 if ARCH_EBSA110
1391 default 0xf0010000 if DEBUG_ASM9260_UART
1392 default 0xf01fb000 if DEBUG_NOMADIK_UART
1393 default 0xf0201000 if DEBUG_BCM2835
1394 default 0xf1000300 if DEBUG_BCM_5301X
1395 default 0xf1002000 if DEBUG_MT8127_UART0
1396 default 0xf1006000 if DEBUG_MT6589_UART0
1397 default 0xf1009000 if DEBUG_MT8135_UART3
1398 default 0xf11f1000 if ARCH_VERSATILE
1399 default 0xf1600000 if ARCH_INTEGRATOR
1400 default 0xf1c28000 if DEBUG_SUNXI_UART0
1401 default 0xf1c28400 if DEBUG_SUNXI_UART1
1402 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1403 default 0xf6200000 if DEBUG_PXA_UART1
1404 default 0xf4090000 if ARCH_LPC32XX
1405 default 0xf4200000 if ARCH_GEMINI
1406 default 0xf7000000 if DEBUG_SUN9I_UART0
1407 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1408 DEBUG_S3C2410_UART0)
1409 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1410 DEBUG_S3C2410_UART1)
1411 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1412 DEBUG_S3C2410_UART2)
1413 default 0xf7fc9000 if DEBUG_BERLIN_UART
1414 default 0xf8007000 if DEBUG_HIP04_UART
1415 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1416 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1417 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1418 default 0xfb002000 if DEBUG_CNS3XXX
1419 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1420 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1421 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1422 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1423 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1424 default 0xfd000000 if ARCH_SPEAR13XX
1425 default 0xfd012000 if ARCH_MV78XX0
1426 default 0xfde12000 if ARCH_DOVE
1427 default 0xfe012000 if ARCH_ORION5X
1428 default 0xf31004c0 if DEBUG_MESON_UARTAO
1429 default 0xfe017000 if DEBUG_MMP_UART2
1430 default 0xfe018000 if DEBUG_MMP_UART3
1431 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1432 default 0xfe230000 if DEBUG_PICOXCELL_UART
1433 default 0xfe300000 if DEBUG_BCM_KONA_UART
1434 default 0xfe800000 if ARCH_IOP32X
1435 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1436 default 0xfeb24000 if DEBUG_RK3X_UART0
1437 default 0xfeb26000 if DEBUG_RK3X_UART1
1438 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1439 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1440 default 0xfec02000 if DEBUG_SOCFPGA_UART
1441 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1442 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1443 default 0xfec90000 if DEBUG_RK32_UART2
1444 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1445 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1446 default 0xfed60000 if DEBUG_RK29_UART0
1447 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1448 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1449 default 0xfedc0000 if ARCH_EP93XX
1450 default 0xfee003f8 if FOOTBRIDGE
1451 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1452 default 0xfee82340 if ARCH_IOP13XX
1453 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1454 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1455 default 0xfef36000 if DEBUG_HIGHBANK_UART
1456 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1457 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1458 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1459 default 0xfefff700 if ARCH_IOP33X
1460 default 0xff003000 if DEBUG_U300_UART
1461 default DEBUG_UART_PHYS if !MMU
1462 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1463 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1464 DEBUG_MSM_UART || DEBUG_NETX_UART || \
1465 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1466 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1468 config DEBUG_UART_8250_SHIFT
1469 int "Register offset shift for the 8250 debug UART"
1470 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1471 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
1472 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1475 config DEBUG_UART_8250_WORD
1476 bool "Use 32-bit accesses for 8250 UART"
1477 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1478 depends on DEBUG_UART_8250_SHIFT >= 2
1479 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1481 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1482 DEBUG_DAVINCI_DA8XX_UART2 || \
1483 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1486 config DEBUG_UART_8250_FLOW_CONTROL
1487 bool "Enable flow control for 8250 UART"
1488 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1489 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1491 config DEBUG_UNCOMPRESS
1493 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1494 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1495 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1497 This option influences the normal decompressor output for
1498 multiplatform kernels. Normally, multiplatform kernels disable
1499 decompressor output because it is not possible to know where to
1500 send the decompressor output.
1502 When this option is set, the selected DEBUG_LL output method
1503 will be re-used for normal decompressor output on multiplatform
1507 config UNCOMPRESS_INCLUDE
1509 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1510 PLAT_SAMSUNG || ARCH_EFM32
1511 default "mach/uncompress.h"
1517 Say Y here if you want to have an early console using the
1518 kernel low-level debugging functions. Add earlyprintk to your
1519 kernel parameters to enable this console.
1521 config ARM_KPROBES_TEST
1522 tristate "Kprobes test module"
1523 depends on KPROBES && MODULES
1525 Perform tests of kprobes API and instruction set simulation.
1527 config PID_IN_CONTEXTIDR
1528 bool "Write the current PID to the CONTEXTIDR register"
1529 depends on CPU_COPY_V6
1531 Enabling this option causes the kernel to write the current PID to
1532 the PROCID field of the CONTEXTIDR register, at the expense of some
1533 additional instructions during context switch. Say Y here only if you
1534 are planning to use hardware trace tools with this kernel.
1536 config DEBUG_SET_MODULE_RONX
1537 bool "Set loadable kernel module data as NX and text as RO"
1540 This option helps catch unintended modifications to loadable
1541 kernel module's text and read-only data. It also prevents execution
1542 of module data. Such protection may interfere with run-time code
1543 patching and dynamic kernel tracing - and they might also protect
1544 against certain classes of kernel exploits.
1545 If in doubt, say "N".
1547 menuconfig CORESIGHT
1548 bool "CoreSight Tracing Support"
1551 This framework provides a kernel interface for the CoreSight debug
1552 and trace drivers to register themselves with. It's intended to build
1553 a topological view of the CoreSight components based on a DT
1554 specification and configure the right serie of components when a
1555 trace source gets enabled.
1558 config CORESIGHT_LINKS_AND_SINKS
1559 bool "CoreSight Link and Sink drivers"
1561 This enables support for CoreSight link and sink drivers that are
1562 responsible for transporting and collecting the trace data
1563 respectively. Link and sinks are dynamically aggregated with a trace
1564 entity at run time to form a complete trace path.
1566 config CORESIGHT_LINK_AND_SINK_TMC
1567 bool "Coresight generic TMC driver"
1568 depends on CORESIGHT_LINKS_AND_SINKS
1570 This enables support for the Trace Memory Controller driver. Depending
1571 on its configuration the device can act as a link (embedded trace router
1572 - ETR) or sink (embedded trace FIFO). The driver complies with the
1573 generic implementation of the component without special enhancement or
1576 config CORESIGHT_SINK_TPIU
1577 bool "Coresight generic TPIU driver"
1578 depends on CORESIGHT_LINKS_AND_SINKS
1580 This enables support for the Trace Port Interface Unit driver, responsible
1581 for bridging the gap between the on-chip coresight components and a trace
1582 port collection engine, typically connected to an external host for use
1583 case capturing more traces than the on-board coresight memory can handle.
1585 config CORESIGHT_SINK_ETBV10
1586 bool "Coresight ETBv1.0 driver"
1587 depends on CORESIGHT_LINKS_AND_SINKS
1589 This enables support for the Embedded Trace Buffer version 1.0 driver
1590 that complies with the generic implementation of the component without
1591 special enhancement or added features.
1593 config CORESIGHT_SOURCE_ETM3X
1594 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1595 select CORESIGHT_LINKS_AND_SINKS
1597 This driver provides support for processor ETM3.x and PTM1.x modules,
1598 which allows tracing the instructions that a processor is executing
1599 This is primarily useful for instruction level tracing. Depending
1600 the ETM version data tracing may also be available.