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_ALPINE_UART0
97 bool "Kernel low-level debugging messages via Alpine UART0"
98 depends on ARCH_ALPINE
99 select DEBUG_UART_8250
101 Say Y here if you want kernel low-level debugging support
102 on Alpine based platforms.
104 config DEBUG_ASM9260_UART
105 bool "Kernel low-level debugging via asm9260 UART"
106 depends on MACH_ASM9260
108 Say Y here if you want the debug print routines to direct
109 their output to an UART or USART port on asm9260 based
112 DEBUG_UART_PHYS | DEBUG_UART_VIRT
114 0x80000000 | 0xf0000000 | UART0
115 0x80004000 | 0xf0004000 | UART1
116 0x80008000 | 0xf0008000 | UART2
117 0x8000c000 | 0xf000c000 | UART3
118 0x80010000 | 0xf0010000 | UART4
119 0x80014000 | 0xf0014000 | UART5
120 0x80018000 | 0xf0018000 | UART6
121 0x8001c000 | 0xf001c000 | UART7
122 0x80020000 | 0xf0020000 | UART8
123 0x80024000 | 0xf0024000 | UART9
125 config AT91_DEBUG_LL_DBGU0
126 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
127 select DEBUG_AT91_UART
129 depends on SOC_AT91RM9200 || SOC_AT91SAM9
131 config AT91_DEBUG_LL_DBGU1
132 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
133 select DEBUG_AT91_UART
135 depends on SOC_AT91SAM9 || SOC_SAMA5
137 config AT91_DEBUG_LL_DBGU2
138 bool "Kernel low-level debugging on sama5d4"
139 select DEBUG_AT91_UART
144 bool "Kernel low-level debugging on BCM2835 PL011 UART"
145 depends on ARCH_BCM2835
146 select DEBUG_UART_PL01X
148 config DEBUG_BCM_5301X
149 bool "Kernel low-level debugging on BCM5301X UART1"
150 depends on ARCH_BCM_5301X
151 select DEBUG_UART_8250
153 config DEBUG_BCM_KONA_UART
154 bool "Kernel low-level debugging messages via BCM KONA UART"
155 depends on ARCH_BCM_MOBILE
156 select DEBUG_UART_8250
158 Say Y here if you want kernel low-level debugging support
159 on Broadcom SoC platforms.
160 This low level debug works for Broadcom
161 mobile SoCs in the Kona family of chips (e.g. bcm28155,
165 bool "Kernel low-level debugging on BCM63XX UART"
166 depends on ARCH_BCM_63XX
167 select DEBUG_UART_BCM63XX
169 config DEBUG_BERLIN_UART
170 bool "Marvell Berlin SoC Debug UART"
171 depends on ARCH_BERLIN
172 select DEBUG_UART_8250
174 Say Y here if you want kernel low-level debugging support
175 on Marvell Berlin SoC based platforms.
177 config DEBUG_BRCMSTB_UART
178 bool "Use BRCMSTB UART for low-level debug"
179 depends on ARCH_BRCMSTB
180 select DEBUG_UART_8250
182 Say Y here if you want the debug print routines to direct
183 their output to the first serial port on these devices.
185 If you have a Broadcom STB chip and would like early print
186 messages to appear over the UART, select this option.
188 config DEBUG_CLPS711X_UART1
189 bool "Kernel low-level debugging messages via UART1"
190 depends on ARCH_CLPS711X
192 Say Y here if you want the debug print routines to direct
193 their output to the first serial port on these devices.
195 config DEBUG_CLPS711X_UART2
196 bool "Kernel low-level debugging messages via UART2"
197 depends on ARCH_CLPS711X
199 Say Y here if you want the debug print routines to direct
200 their output to the second serial port on these devices.
203 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
204 depends on ARCH_CNS3XXX
205 select DEBUG_UART_8250
207 Say Y here if you want the debug print routines to direct
208 their output to the CNS3xxx UART0.
210 config DEBUG_DAVINCI_DA8XX_UART1
211 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
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 UART1 serial port on DaVinci DA8XX devices.
218 config DEBUG_DAVINCI_DA8XX_UART2
219 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
220 depends on ARCH_DAVINCI_DA8XX
221 select DEBUG_UART_8250
223 Say Y here if you want the debug print routines to direct
224 their output to UART2 serial port on DaVinci DA8XX devices.
226 config DEBUG_DAVINCI_DMx_UART0
227 bool "Kernel low-level debugging on DaVinci DMx using UART0"
228 depends on ARCH_DAVINCI_DMx
229 select DEBUG_UART_8250
231 Say Y here if you want the debug print routines to direct
232 their output to UART0 serial port on DaVinci DMx devices.
234 config DEBUG_ZYNQ_UART0
235 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
238 Say Y here if you want the debug print routines to direct
239 their output to UART0 on the Zynq platform.
241 config DEBUG_ZYNQ_UART1
242 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
245 Say Y here if you want the debug print routines to direct
246 their output to UART1 on the Zynq platform.
248 If you have a ZC702 board and want early boot messages to
249 appear on the USB serial adaptor, select this option.
251 config DEBUG_DC21285_PORT
252 bool "Kernel low-level debugging messages via footbridge serial port"
253 depends on FOOTBRIDGE
255 Say Y here if you want the debug print routines to direct
256 their output to the serial port in the DC21285 (Footbridge).
258 config DEBUG_DIGICOLOR_UA0
259 bool "Kernel low-level debugging messages via Digicolor UA0"
260 depends on ARCH_DIGICOLOR
262 Say Y here if you want the debug print routines to direct
263 their output to the UA0 serial port in the CX92755.
265 config DEBUG_FOOTBRIDGE_COM1
266 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
267 depends on FOOTBRIDGE
269 Say Y here if you want the debug print routines to direct
270 their output to the 8250 at PCI COM1.
272 config DEBUG_HI3620_UART
273 bool "Hisilicon HI3620 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_HI3716_UART
281 bool "Hisilicon Hi3716 Debug UART"
282 depends on ARCH_HI3xxx
283 select DEBUG_UART_PL01X
285 Say Y here if you want kernel low-level debugging support
288 config DEBUG_HIGHBANK_UART
289 bool "Kernel low-level debugging messages via Highbank UART"
290 depends on ARCH_HIGHBANK
291 select DEBUG_UART_PL01X
293 Say Y here if you want the debug print routines to direct
294 their output to the UART on Highbank based devices.
296 config DEBUG_HIP01_UART
297 bool "Hisilicon Hip01 Debug UART"
298 depends on ARCH_HIP01
299 select DEBUG_UART_8250
301 Say Y here if you want kernel low-level debugging support
304 config DEBUG_HIP04_UART
305 bool "Hisilicon HiP04 Debug UART"
306 depends on ARCH_HIP04
307 select DEBUG_UART_8250
309 Say Y here if you want kernel low-level debugging support
312 config DEBUG_HIX5HD2_UART
313 bool "Hisilicon Hix5hd2 Debug UART"
314 depends on ARCH_HIX5HD2
315 select DEBUG_UART_PL01X
317 Say Y here if you want kernel low-level debugging support
320 config DEBUG_IMX1_UART
321 bool "i.MX1 Debug UART"
324 Say Y here if you want kernel low-level debugging support
327 config DEBUG_IMX23_UART
328 bool "i.MX23 Debug UART"
330 select DEBUG_UART_PL01X
332 Say Y here if you want kernel low-level debugging support
335 config DEBUG_IMX25_UART
336 bool "i.MX25 Debug UART"
339 Say Y here if you want kernel low-level debugging support
342 config DEBUG_IMX21_IMX27_UART
343 bool "i.MX21 and i.MX27 Debug UART"
344 depends on SOC_IMX21 || SOC_IMX27
346 Say Y here if you want kernel low-level debugging support
349 config DEBUG_IMX28_UART
350 bool "i.MX28 Debug UART"
352 select DEBUG_UART_PL01X
354 Say Y here if you want kernel low-level debugging support
357 config DEBUG_IMX31_UART
358 bool "i.MX31 Debug UART"
361 Say Y here if you want kernel low-level debugging support
364 config DEBUG_IMX35_UART
365 bool "i.MX35 Debug UART"
368 Say Y here if you want kernel low-level debugging support
371 config DEBUG_IMX50_UART
372 bool "i.MX50 Debug UART"
375 Say Y here if you want kernel low-level debugging support
378 config DEBUG_IMX51_UART
379 bool "i.MX51 Debug UART"
382 Say Y here if you want kernel low-level debugging support
385 config DEBUG_IMX53_UART
386 bool "i.MX53 Debug UART"
389 Say Y here if you want kernel low-level debugging support
392 config DEBUG_IMX6Q_UART
393 bool "i.MX6Q/DL Debug UART"
396 Say Y here if you want kernel low-level debugging support
399 config DEBUG_IMX6SL_UART
400 bool "i.MX6SL Debug UART"
401 depends on SOC_IMX6SL
403 Say Y here if you want kernel low-level debugging support
406 config DEBUG_IMX6SX_UART
407 bool "i.MX6SX Debug UART"
408 depends on SOC_IMX6SX
410 Say Y here if you want kernel low-level debugging support
413 config DEBUG_KEYSTONE_UART0
414 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
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 UART0 serial port on KEYSTONE2 devices.
421 config DEBUG_KEYSTONE_UART1
422 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
423 depends on ARCH_KEYSTONE
424 select DEBUG_UART_8250
426 Say Y here if you want the debug print routines to direct
427 their output to UART1 serial port on KEYSTONE2 devices.
429 config DEBUG_KS8695_UART
430 bool "KS8695 Debug UART"
431 depends on ARCH_KS8695
433 Say Y here if you want kernel low-level debugging support
436 config DEBUG_LPC18XX_UART0
437 bool "Kernel low-level debugging via LPC18xx/43xx UART0"
438 depends on ARCH_LPC18XX
439 select DEBUG_UART_8250
441 Say Y here if you want kernel low-level debugging support
442 on NXP LPC18xx/43xx UART0.
444 config DEBUG_MESON_UARTAO
445 bool "Kernel low-level debugging via Meson6 UARTAO"
446 depends on ARCH_MESON
448 Say Y here if you want kernel low-lever debugging support
449 on Amlogic Meson6 based platforms on the UARTAO.
451 config DEBUG_MMP_UART2
452 bool "Kernel low-level debugging message via MMP UART2"
454 select DEBUG_UART_8250
456 Say Y here if you want kernel low-level debugging support
459 config DEBUG_MMP_UART3
460 bool "Kernel low-level debugging message via MMP UART3"
462 select DEBUG_UART_8250
464 Say Y here if you want kernel low-level debugging support
467 config DEBUG_QCOM_UARTDM
468 bool "Kernel low-level debugging messages via QCOM UARTDM"
471 Say Y here if you want the debug print routines to direct
472 their output to the serial port on Qualcomm devices.
474 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
475 APQ8064 0x16640000 0xf0040000
476 APQ8084 0xf995e000 0xfa75e000
477 MSM8X60 0x19c40000 0xf0040000
478 MSM8960 0x16440000 0xf0040000
479 MSM8974 0xf991e000 0xfa71e000
481 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
482 options based on your needs.
484 config DEBUG_MVEBU_UART0
485 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
486 depends on ARCH_MVEBU
487 select DEBUG_UART_8250
489 Say Y here if you want kernel low-level debugging support
490 on MVEBU based platforms on UART0.
492 This option should be used with the old bootloaders
493 that left the internal registers mapped at
494 0xd0000000. As of today, this is the case on
495 platforms such as the Globalscale Mirabox or the
496 Plathome OpenBlocks AX3, when using the original
499 If the wrong DEBUG_MVEBU_UART* option is selected,
500 when u-boot hands over to the kernel, the system
501 silently crashes, with no serial output at all.
503 config DEBUG_MVEBU_UART0_ALTERNATE
504 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
505 depends on ARCH_MVEBU
506 select DEBUG_UART_8250
508 Say Y here if you want kernel low-level debugging support
509 on MVEBU based platforms on UART0.
511 This option should be used with the new bootloaders
512 that remap the internal registers at 0xf1000000.
514 If the wrong DEBUG_MVEBU_UART* option is selected,
515 when u-boot hands over to the kernel, the system
516 silently crashes, with no serial output at all.
518 config DEBUG_MVEBU_UART1_ALTERNATE
519 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
520 depends on ARCH_MVEBU
521 select DEBUG_UART_8250
523 Say Y here if you want kernel low-level debugging support
524 on MVEBU based platforms on UART1.
526 This option should be used with the new bootloaders
527 that remap the internal registers at 0xf1000000.
529 If the wrong DEBUG_MVEBU_UART* option is selected,
530 when u-boot hands over to the kernel, the system
531 silently crashes, with no serial output at all.
537 Say Y here if you want kernel low-level debugging support
538 on Vybrid based platforms.
540 config DEBUG_NETX_UART
541 bool "Kernel low-level debugging messages via NetX UART"
544 Say Y here if you want kernel low-level debugging support
545 on Hilscher NetX based platforms.
547 config DEBUG_NOMADIK_UART
548 bool "Kernel low-level debugging messages via NOMADIK UART"
549 depends on ARCH_NOMADIK
550 select DEBUG_UART_PL01X
552 Say Y here if you want kernel low-level debugging support
553 on NOMADIK based platforms.
555 config DEBUG_NSPIRE_CLASSIC_UART
556 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
557 depends on ARCH_NSPIRE
558 select DEBUG_UART_8250
560 Say Y here if you want kernel low-level debugging support
561 on TI-NSPIRE classic models.
563 config DEBUG_NSPIRE_CX_UART
564 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
565 depends on ARCH_NSPIRE
566 select DEBUG_UART_PL01X
568 Say Y here if you want kernel low-level debugging support
569 on TI-NSPIRE CX models.
571 config DEBUG_OMAP1UART1
572 bool "Kernel low-level debugging via OMAP1 UART1"
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 UART1.
579 config DEBUG_OMAP1UART2
580 bool "Kernel low-level debugging via OMAP1 UART2"
581 depends on ARCH_OMAP1
582 select DEBUG_UART_8250
584 Say Y here if you want kernel low-level debugging support
585 on OMAP1 based platforms (except OMAP730) on the UART2.
587 config DEBUG_OMAP1UART3
588 bool "Kernel low-level debugging via OMAP1 UART3"
589 depends on ARCH_OMAP1
590 select DEBUG_UART_8250
592 Say Y here if you want kernel low-level debugging support
593 on OMAP1 based platforms (except OMAP730) on the UART3.
595 config DEBUG_OMAP2UART1
596 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
597 depends on ARCH_OMAP2PLUS
598 select DEBUG_OMAP2PLUS_UART
600 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
601 omap3 torpedo and 3530 lv som.
603 config DEBUG_OMAP2UART2
604 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
605 depends on ARCH_OMAP2PLUS
606 select DEBUG_OMAP2PLUS_UART
608 config DEBUG_OMAP2UART3
609 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
610 depends on ARCH_OMAP2PLUS
611 select DEBUG_OMAP2PLUS_UART
613 config DEBUG_OMAP3UART3
614 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
615 depends on ARCH_OMAP2PLUS
616 select DEBUG_OMAP2PLUS_UART
618 This covers at least cm_t3x, beagle, crane, devkit8000,
619 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
622 config DEBUG_OMAP4UART3
623 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
624 depends on ARCH_OMAP2PLUS
625 select DEBUG_OMAP2PLUS_UART
627 config DEBUG_OMAP3UART4
628 bool "Kernel low-level debugging messages via OMAP36XX UART4"
629 depends on ARCH_OMAP2PLUS
630 select DEBUG_OMAP2PLUS_UART
632 config DEBUG_OMAP4UART4
633 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
634 depends on ARCH_OMAP2PLUS
635 select DEBUG_OMAP2PLUS_UART
637 config DEBUG_OMAP7XXUART1
638 bool "Kernel low-level debugging via OMAP730 UART1"
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 UART1.
645 config DEBUG_OMAP7XXUART2
646 bool "Kernel low-level debugging via OMAP730 UART2"
647 depends on ARCH_OMAP730
648 select DEBUG_UART_8250
650 Say Y here if you want kernel low-level debugging support
651 on OMAP730 based platforms on the UART2.
653 config DEBUG_OMAP7XXUART3
654 bool "Kernel low-level debugging via OMAP730 UART3"
655 depends on ARCH_OMAP730
656 select DEBUG_UART_8250
658 Say Y here if you want kernel low-level debugging support
659 on OMAP730 based platforms on the UART3.
661 config DEBUG_TI81XXUART1
662 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
663 depends on ARCH_OMAP2PLUS
664 select DEBUG_OMAP2PLUS_UART
666 config DEBUG_TI81XXUART2
667 bool "Kernel low-level debugging messages via TI81XX UART2"
668 depends on ARCH_OMAP2PLUS
669 select DEBUG_OMAP2PLUS_UART
671 config DEBUG_TI81XXUART3
672 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
673 depends on ARCH_OMAP2PLUS
674 select DEBUG_OMAP2PLUS_UART
676 config DEBUG_AM33XXUART1
677 bool "Kernel low-level debugging messages via AM33XX UART1"
678 depends on ARCH_OMAP2PLUS
679 select DEBUG_OMAP2PLUS_UART
681 config DEBUG_ZOOM_UART
682 bool "Kernel low-level debugging messages via Zoom2/3 UART"
683 depends on ARCH_OMAP2PLUS
684 select DEBUG_OMAP2PLUS_UART
686 config DEBUG_PICOXCELL_UART
687 depends on ARCH_PICOXCELL
688 bool "Use PicoXcell UART for low-level debug"
689 select DEBUG_UART_8250
691 Say Y here if you want kernel low-level debugging support
692 on PicoXcell based platforms.
694 config DEBUG_PXA_UART1
696 bool "Use PXA UART1 for low-level debug"
697 select DEBUG_UART_8250
699 Say Y here if you want kernel low-level debugging support
702 config DEBUG_REALVIEW_STD_PORT
703 bool "RealView Default UART"
704 depends on ARCH_REALVIEW
705 select DEBUG_UART_PL01X
707 Say Y here if you want the debug print routines to direct
708 their output to the serial port on RealView EB, PB11MP, PBA8
711 config DEBUG_REALVIEW_PB1176_PORT
712 bool "RealView PB1176 UART"
713 depends on MACH_REALVIEW_PB1176
714 select DEBUG_UART_PL01X
716 Say Y here if you want the debug print routines to direct
717 their output to the standard serial port on the RealView
720 config DEBUG_RK29_UART0
721 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
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_RK29_UART1
729 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
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_RK29_UART2
737 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
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_UART0
745 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
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_UART1
753 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
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_RK3X_UART2
761 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 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 based platforms.
768 config DEBUG_RK3X_UART3
769 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
770 depends on ARCH_ROCKCHIP
771 select DEBUG_UART_8250
773 Say Y here if you want kernel low-level debugging support
774 on Rockchip based platforms.
776 config DEBUG_RK32_UART2
777 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
778 depends on ARCH_ROCKCHIP
779 select DEBUG_UART_8250
781 Say Y here if you want kernel low-level debugging support
782 on Rockchip RK32xx based platforms.
784 config DEBUG_R7S72100_SCIF2
785 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
786 depends on ARCH_R7S72100
788 Say Y here if you want kernel low-level debugging support
789 via SCIF2 on Renesas RZ/A1H (R7S72100).
791 config DEBUG_RCAR_GEN1_SCIF0
792 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
793 depends on ARCH_R8A7778
795 Say Y here if you want kernel low-level debugging support
796 via SCIF0 on Renesas R-Car M1A (R8A7778).
798 config DEBUG_RCAR_GEN1_SCIF2
799 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
800 depends on ARCH_R8A7779
802 Say Y here if you want kernel low-level debugging support
803 via SCIF2 on Renesas R-Car H1 (R8A7779).
805 config DEBUG_RCAR_GEN2_SCIF0
806 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793"
807 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
809 Say Y here if you want kernel low-level debugging support
810 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
813 config DEBUG_RCAR_GEN2_SCIF2
814 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
815 depends on ARCH_R8A7794
817 Say Y here if you want kernel low-level debugging support
818 via SCIF2 on Renesas R-Car E2 (R8A7794).
820 config DEBUG_RMOBILE_SCIFA0
821 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
822 depends on ARCH_R8A73A4
824 Say Y here if you want kernel low-level debugging support
825 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
827 config DEBUG_RMOBILE_SCIFA1
828 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
829 depends on ARCH_R8A7740
831 Say Y here if you want kernel low-level debugging support
832 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
834 config DEBUG_RMOBILE_SCIFA4
835 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
836 depends on ARCH_SH73A0
838 Say Y here if you want kernel low-level debugging support
839 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
841 config DEBUG_S3C_UART0
842 depends on PLAT_SAMSUNG
843 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
844 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
845 select DEBUG_S5PV210_UART if ARCH_S5PV210
846 bool "Use Samsung S3C UART 0 for low-level debug"
848 Say Y here if you want the debug print routines to direct
849 their output to UART 0. The port must have been initialised
850 by the boot-loader before use.
852 config DEBUG_S3C_UART1
853 depends on PLAT_SAMSUNG
854 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
855 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
856 select DEBUG_S5PV210_UART if ARCH_S5PV210
857 bool "Use Samsung S3C UART 1 for low-level debug"
859 Say Y here if you want the debug print routines to direct
860 their output to UART 1. The port must have been initialised
861 by the boot-loader before use.
863 config DEBUG_S3C_UART2
864 depends on PLAT_SAMSUNG
865 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
866 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
867 select DEBUG_S5PV210_UART if ARCH_S5PV210
868 bool "Use Samsung S3C UART 2 for low-level debug"
870 Say Y here if you want the debug print routines to direct
871 their output to UART 2. The port must have been initialised
872 by the boot-loader before use.
874 config DEBUG_S3C_UART3
875 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
876 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
877 select DEBUG_S5PV210_UART if ARCH_S5PV210
878 bool "Use Samsung S3C UART 3 for low-level debug"
880 Say Y here if you want the debug print routines to direct
881 their output to UART 3. The port must have been initialised
882 by the boot-loader before use.
884 config DEBUG_S3C2410_UART0
885 depends on ARCH_S3C24XX
886 select DEBUG_S3C2410_UART
887 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
889 Say Y here if you want the debug print routines to direct
890 their output to UART 0. The port must have been initialised
891 by the boot-loader before use.
893 config DEBUG_S3C2410_UART1
894 depends on ARCH_S3C24XX
895 select DEBUG_S3C2410_UART
896 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
898 Say Y here if you want the debug print routines to direct
899 their output to UART 1. The port must have been initialised
900 by the boot-loader before use.
902 config DEBUG_S3C2410_UART2
903 depends on ARCH_S3C24XX
904 select DEBUG_S3C2410_UART
905 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
907 Say Y here if you want the debug print routines to direct
908 their output to UART 2. The port must have been initialised
909 by the boot-loader before use.
912 depends on ARCH_SA1100
913 bool "Use SA1100 UARTs for low-level debug"
915 Say Y here if you want kernel low-level debugging support
916 on SA-11x0 UART ports. The kernel will check for the first
917 enabled UART in a sequence 3-1-2.
919 config DEBUG_SOCFPGA_UART0
920 depends on ARCH_SOCFPGA
921 bool "Use SOCFPGA UART0 for low-level debug"
922 select DEBUG_UART_8250
924 Say Y here if you want kernel low-level debugging support
925 on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
927 config DEBUG_SOCFPGA_UART1
928 depends on ARCH_SOCFPGA
929 bool "Use SOCFPGA UART1 for low-level debug"
930 select DEBUG_UART_8250
932 Say Y here if you want kernel low-level debugging support
933 on SOCFPGA(Arria 10) based platforms.
936 config DEBUG_SUN9I_UART0
937 bool "Kernel low-level debugging messages via sun9i UART0"
938 depends on MACH_SUN9I
939 select DEBUG_UART_8250
941 Say Y here if you want kernel low-level debugging support
942 on Allwinner A80 based platforms on the UART0.
944 config DEBUG_SUNXI_UART0
945 bool "Kernel low-level debugging messages via sunXi UART0"
946 depends on ARCH_SUNXI
947 select DEBUG_UART_8250
949 Say Y here if you want kernel low-level debugging support
950 on Allwinner A1X based platforms on the UART0.
952 config DEBUG_SUNXI_UART1
953 bool "Kernel low-level debugging messages via sunXi UART1"
954 depends on ARCH_SUNXI
955 select DEBUG_UART_8250
957 Say Y here if you want kernel low-level debugging support
958 on Allwinner A1X based platforms on the UART1.
960 config DEBUG_SUNXI_R_UART
961 bool "Kernel low-level debugging messages via sunXi R_UART"
962 depends on MACH_SUN6I || MACH_SUN8I
963 select DEBUG_UART_8250
965 Say Y here if you want kernel low-level debugging support
966 on Allwinner A31/A23 based platforms on the R_UART.
968 config TEGRA_DEBUG_UART_AUTO_ODMDATA
969 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
970 depends on ARCH_TEGRA
971 select DEBUG_TEGRA_UART
973 Automatically determines which UART to use for low-level
974 debug based on the ODMDATA value. This value is part of
975 the BCT, and is written to the boot memory device using
976 nvflash, or other flashing tool. When bits 19:18 are 3,
977 then bits 17:15 indicate which UART to use; 0/1/2/3/4
980 config TEGRA_DEBUG_UARTA
981 bool "Kernel low-level debugging messages via Tegra UART A"
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_UARTB
989 bool "Kernel low-level debugging messages via Tegra UART B"
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 TEGRA_DEBUG_UARTC
997 bool "Kernel low-level debugging messages via Tegra UART C"
998 depends on ARCH_TEGRA
999 select DEBUG_TEGRA_UART
1001 Say Y here if you want kernel low-level debugging support
1002 on Tegra based platforms.
1004 config TEGRA_DEBUG_UARTD
1005 bool "Kernel low-level debugging messages via Tegra UART D"
1006 depends on ARCH_TEGRA
1007 select DEBUG_TEGRA_UART
1009 Say Y here if you want kernel low-level debugging support
1010 on Tegra based platforms.
1012 config TEGRA_DEBUG_UARTE
1013 bool "Kernel low-level debugging messages via Tegra UART E"
1014 depends on ARCH_TEGRA
1015 select DEBUG_TEGRA_UART
1017 Say Y here if you want kernel low-level debugging support
1018 on Tegra based platforms.
1020 config DEBUG_SIRFPRIMA2_UART1
1021 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
1022 depends on ARCH_PRIMA2
1023 select DEBUG_SIRFSOC_UART
1025 Say Y here if you want the debug print routines to direct
1026 their output to the uart1 port on SiRFprimaII devices.
1028 config DEBUG_SIRFATLAS7_UART0
1029 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
1030 depends on ARCH_ATLAS7
1031 select DEBUG_SIRFSOC_UART
1033 Say Y here if you want the debug print routines to direct
1034 their output to the uart0 port on SiRFATLAS7 devices.The uart0
1035 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
1036 debug port can be very useful.
1038 config DEBUG_SIRFATLAS7_UART1
1039 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
1040 depends on ARCH_ATLAS7
1041 select DEBUG_SIRFSOC_UART
1043 Say Y here if you want the debug print routines to direct
1044 their output to the uart1 port on SiRFATLAS7 devices.
1046 config STIH41X_DEBUG_ASC2
1047 bool "Use StiH415/416 ASC2 UART for low-level debug"
1049 select DEBUG_STI_UART
1051 Say Y here if you want kernel low-level debugging support
1052 on STiH415/416 based platforms like b2000, which has
1053 default UART wired up to ASC2.
1057 config STIH41X_DEBUG_SBC_ASC1
1058 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1060 select DEBUG_STI_UART
1062 Say Y here if you want kernel low-level debugging support
1063 on STiH415/416 based platforms like b2020. which has
1064 default UART wired up to SBC ASC1.
1068 config DEBUG_U300_UART
1069 bool "Kernel low-level debugging messages via U300 UART0"
1070 depends on ARCH_U300
1071 select DEBUG_UART_PL01X
1073 Say Y here if you want the debug print routines to direct
1074 their output to the uart port on U300 devices.
1076 config DEBUG_UX500_UART
1077 depends on ARCH_U8500
1078 bool "Use Ux500 UART for low-level debug"
1080 Say Y here if you want kernel low-level debugging support
1081 on Ux500 based platforms.
1083 config DEBUG_MT6589_UART0
1084 bool "Mediatek mt6589 UART0"
1085 depends on ARCH_MEDIATEK
1086 select DEBUG_UART_8250
1088 Say Y here if you want kernel low-level debugging support
1089 for Mediatek mt6589 based platforms on UART0.
1091 config DEBUG_MT8127_UART0
1092 bool "Mediatek mt8127/mt6592 UART0"
1093 depends on ARCH_MEDIATEK
1094 select DEBUG_UART_8250
1096 Say Y here if you want kernel low-level debugging support
1097 for Mediatek mt8127 based platforms on UART0.
1099 config DEBUG_MT8135_UART3
1100 bool "Mediatek mt8135 UART3"
1101 depends on ARCH_MEDIATEK
1102 select DEBUG_UART_8250
1104 Say Y here if you want kernel low-level debugging support
1105 for Mediatek mt8135 based platforms on UART3.
1107 config DEBUG_VEXPRESS_UART0_DETECT
1108 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1109 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1111 This option enables a simple heuristic which tries to determine
1112 the motherboard's memory map variant (original or RS1) and then
1113 choose the relevant UART0 base address.
1115 Note that this will only work with standard A-class core tiles,
1116 and may fail with non-standard SMM or custom software models.
1118 config DEBUG_VEXPRESS_UART0_CA9
1119 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1120 depends on ARCH_VEXPRESS
1121 select DEBUG_UART_PL01X
1123 This option selects UART0 at 0x10009000. Except for custom models,
1124 this applies only to the V2P-CA9 tile.
1126 config DEBUG_VEXPRESS_UART0_RS1
1127 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1128 depends on ARCH_VEXPRESS
1129 select DEBUG_UART_PL01X
1131 This option selects UART0 at 0x1c090000. This applies to most
1132 of the tiles using the RS1 memory map, including all new A-class
1133 core tiles, FPGA-based SMMs and software models.
1135 config DEBUG_VEXPRESS_UART0_CRX
1136 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1137 depends on ARCH_VEXPRESS && !MMU
1138 select DEBUG_UART_PL01X
1140 This option selects UART0 at 0xb0090000. This is appropriate for
1141 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1143 config DEBUG_VT8500_UART0
1144 bool "Use UART0 on VIA/Wondermedia SoCs"
1145 depends on ARCH_VT8500
1147 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1148 devices, including VT8500, WM8505, WM8650 and WM8850.
1151 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1153 Say Y here if you want the debug print routines to direct
1154 their output to the EmbeddedICE macrocell's DCC channel using
1155 co-processor 14. This is known to work on the ARM9 style ICE
1156 channel and on the XScale with the PEEDI.
1158 Note that the system will appear to hang during boot if there
1159 is nothing connected to read from the DCC.
1161 config DEBUG_SEMIHOSTING
1162 bool "Kernel low-level debug output via semihosting I/O"
1164 Semihosting enables code running on an ARM target to use
1165 the I/O facilities on a host debugger/emulator through a
1166 simple SVC call. The host debugger or emulator must have
1167 semihosting enabled for the special svc call to be trapped
1168 otherwise the kernel will crash.
1170 This is known to work with OpenOCD, as well as
1171 ARM's Fast Models, or any other controlling environment
1172 that implements semihosting.
1174 For more details about semihosting, please see
1175 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1178 bool "Use ZTE ZX UART"
1179 select DEBUG_UART_PL01X
1182 Say Y here if you are enabling ZTE ZX296702 SOC and need
1185 This option is preferred over the platform specific
1186 options; the platform specific options are deprecated
1187 and will be soon removed.
1189 config DEBUG_LL_UART_8250
1190 bool "Kernel low-level debugging via 8250 UART"
1192 Say Y here if you wish the debug print routes to direct
1193 their output to an 8250 UART. You can use this option
1194 to provide the parameters for the 8250 UART rather than
1195 selecting one of the platform specific options above if
1196 you know the parameters for the port.
1198 This option is preferred over the platform specific
1199 options; the platform specific options are deprecated
1200 and will be soon removed.
1202 config DEBUG_LL_UART_EFM32
1203 bool "Kernel low-level debugging via efm32 UART"
1204 depends on ARCH_EFM32
1206 Say Y here if you want the debug print routines to direct
1207 their output to an UART or USART port on efm32 based
1208 machines. Use the following addresses for DEBUG_UART_PHYS:
1216 config DEBUG_LL_UART_PL01X
1217 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1219 Say Y here if you wish the debug print routes to direct
1220 their output to a PL01x Primecell UART. You can use
1221 this option to provide the parameters for the UART
1222 rather than selecting one of the platform specific
1223 options above if you know the parameters for the port.
1225 This option is preferred over the platform specific
1226 options; the platform specific options are deprecated
1227 and will be soon removed.
1231 config DEBUG_AT91_UART
1233 depends on ARCH_AT91
1235 config DEBUG_EXYNOS_UART
1238 config DEBUG_S3C2410_UART
1240 select DEBUG_S3C24XX_UART
1242 config DEBUG_S3C24XX_UART
1245 config DEBUG_S5PV210_UART
1248 config DEBUG_OMAP2PLUS_UART
1250 depends on ARCH_OMAP2PLUS
1252 config DEBUG_IMX_UART_PORT
1253 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1254 DEBUG_IMX25_UART || \
1255 DEBUG_IMX21_IMX27_UART || \
1256 DEBUG_IMX31_UART || \
1257 DEBUG_IMX35_UART || \
1258 DEBUG_IMX50_UART || \
1259 DEBUG_IMX51_UART || \
1260 DEBUG_IMX53_UART || \
1261 DEBUG_IMX6Q_UART || \
1262 DEBUG_IMX6SL_UART || \
1267 Choose UART port on which kernel low-level debug messages
1270 config DEBUG_VF_UART_PORT
1271 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1274 depends on SOC_VF610
1276 Choose UART port on which kernel low-level debug messages
1279 config DEBUG_TEGRA_UART
1281 depends on ARCH_TEGRA
1283 config DEBUG_STI_UART
1287 config DEBUG_SIRFSOC_UART
1289 depends on ARCH_SIRF
1291 config DEBUG_LL_INCLUDE
1293 default "debug/sa1100.S" if DEBUG_SA1100
1294 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1295 default "debug/at91.S" if DEBUG_AT91_UART
1296 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1297 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1298 default "debug/meson.S" if DEBUG_MESON_UARTAO
1299 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1300 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1301 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1302 default "debug/icedcc.S" if DEBUG_ICEDCC
1303 default "debug/imx.S" if DEBUG_IMX1_UART || \
1304 DEBUG_IMX25_UART || \
1305 DEBUG_IMX21_IMX27_UART || \
1306 DEBUG_IMX31_UART || \
1307 DEBUG_IMX35_UART || \
1308 DEBUG_IMX50_UART || \
1309 DEBUG_IMX51_UART || \
1310 DEBUG_IMX53_UART ||\
1311 DEBUG_IMX6Q_UART || \
1312 DEBUG_IMX6SL_UART || \
1314 default "debug/ks8695.S" if DEBUG_KS8695_UART
1315 default "debug/msm.S" if DEBUG_QCOM_UARTDM
1316 default "debug/netx.S" if DEBUG_NETX_UART
1317 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1318 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1319 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1320 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1321 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1322 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1323 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1324 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1325 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1326 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1327 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1328 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1329 default "debug/sti.S" if DEBUG_STI_UART
1330 default "debug/tegra.S" if DEBUG_TEGRA_UART
1331 default "debug/ux500.S" if DEBUG_UX500_UART
1332 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1333 default "debug/vf.S" if DEBUG_VF_UART
1334 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1335 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1336 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1337 default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
1338 default "mach/debug-macro.S"
1340 # Compatibility options for PL01x
1341 config DEBUG_UART_PL01X
1344 # Compatibility options for 8250
1345 config DEBUG_UART_8250
1346 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1347 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1348 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1349 ARCH_IOP33X || ARCH_IXP4XX || \
1350 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1352 # Compatibility options for BCM63xx
1353 config DEBUG_UART_BCM63XX
1354 def_bool ARCH_BCM_63XX
1356 config DEBUG_UART_PHYS
1357 hex "Physical base address of debug UART"
1358 default 0x00100a00 if DEBUG_NETX_UART
1359 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1360 default 0x01c28000 if DEBUG_SUNXI_UART0
1361 default 0x01c28400 if DEBUG_SUNXI_UART1
1362 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1363 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1364 default 0x01f02800 if DEBUG_SUNXI_R_UART
1365 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1366 default 0x02531000 if DEBUG_KEYSTONE_UART1
1367 default 0x03010fe0 if ARCH_RPC
1368 default 0x07000000 if DEBUG_SUN9I_UART0
1369 default 0x09405000 if DEBUG_ZTE_ZX
1370 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1371 DEBUG_VEXPRESS_UART0_CA9
1372 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1373 default 0x10124000 if DEBUG_RK3X_UART0
1374 default 0x10126000 if DEBUG_RK3X_UART1
1375 default 0x101f1000 if ARCH_VERSATILE
1376 default 0x101fb000 if DEBUG_NOMADIK_UART
1377 default 0x11002000 if DEBUG_MT8127_UART0
1378 default 0x11006000 if DEBUG_MT6589_UART0
1379 default 0x11009000 if DEBUG_MT8135_UART3
1380 default 0x16000000 if ARCH_INTEGRATOR
1381 default 0x18000300 if DEBUG_BCM_5301X
1382 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1383 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1384 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1385 default 0x20001000 if DEBUG_HIP01_UART
1386 default 0x20060000 if DEBUG_RK29_UART0
1387 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1388 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1389 default 0x20201000 if DEBUG_BCM2835
1390 default 0x3e000000 if DEBUG_BCM_KONA_UART
1391 default 0x4000e400 if DEBUG_LL_UART_EFM32
1392 default 0x40081000 if DEBUG_LPC18XX_UART0
1393 default 0x40090000 if ARCH_LPC32XX
1394 default 0x40100000 if DEBUG_PXA_UART1
1395 default 0x42000000 if ARCH_GEMINI
1396 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1397 DEBUG_S3C2410_UART0)
1398 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1399 DEBUG_S3C2410_UART1)
1400 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1401 DEBUG_S3C2410_UART2)
1402 default 0x78000000 if DEBUG_CNS3XXX
1403 default 0x7c0003f8 if FOOTBRIDGE
1404 default 0x80010000 if DEBUG_ASM9260_UART
1405 default 0x80070000 if DEBUG_IMX23_UART
1406 default 0x80074000 if DEBUG_IMX28_UART
1407 default 0x80230000 if DEBUG_PICOXCELL_UART
1408 default 0x808c0000 if ARCH_EP93XX
1409 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1410 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1411 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1412 default 0xc0013000 if DEBUG_U300_UART
1413 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1414 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1415 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1416 default 0xd0012000 if DEBUG_MVEBU_UART0
1417 default 0xc81004c0 if DEBUG_MESON_UARTAO
1418 default 0xd4017000 if DEBUG_MMP_UART2
1419 default 0xd4018000 if DEBUG_MMP_UART3
1420 default 0xe0000000 if ARCH_SPEAR13XX
1421 default 0xe4007000 if DEBUG_HIP04_UART
1422 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1423 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1424 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1425 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1426 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1427 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1428 default 0xf0000be0 if ARCH_EBSA110
1429 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1430 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1431 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1432 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1434 default 0xf7fc9000 if DEBUG_BERLIN_UART
1435 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1436 default 0xf991e000 if DEBUG_QCOM_UARTDM
1437 default 0xfcb00000 if DEBUG_HI3620_UART
1438 default 0xfd883000 if DEBUG_ALPINE_UART0
1439 default 0xfe800000 if ARCH_IOP32X
1440 default 0xff690000 if DEBUG_RK32_UART2
1441 default 0xffc02000 if DEBUG_SOCFPGA_UART0
1442 default 0xffc02100 if DEBUG_SOCFPGA_UART1
1443 default 0xffd82340 if ARCH_IOP13XX
1444 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1445 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1446 default 0xfff36000 if DEBUG_HIGHBANK_UART
1447 default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1448 default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1449 default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1450 default 0xfffe8600 if DEBUG_UART_BCM63XX
1451 default 0xfffff700 if ARCH_IOP33X
1452 depends on ARCH_EP93XX || \
1453 DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1454 DEBUG_LL_UART_EFM32 || \
1455 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1456 DEBUG_NETX_UART || \
1457 DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1458 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1459 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1460 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1461 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1462 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1463 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1465 config DEBUG_UART_VIRT
1466 hex "Virtual base address of debug UART"
1467 default 0xe0000a00 if DEBUG_NETX_UART
1468 default 0xe0010fe0 if ARCH_RPC
1469 default 0xf0000be0 if ARCH_EBSA110
1470 default 0xf0010000 if DEBUG_ASM9260_UART
1471 default 0xf01fb000 if DEBUG_NOMADIK_UART
1472 default 0xf0201000 if DEBUG_BCM2835
1473 default 0xf1000300 if DEBUG_BCM_5301X
1474 default 0xf1002000 if DEBUG_MT8127_UART0
1475 default 0xf1006000 if DEBUG_MT6589_UART0
1476 default 0xf1009000 if DEBUG_MT8135_UART3
1477 default 0xf11f1000 if ARCH_VERSATILE
1478 default 0xf1600000 if ARCH_INTEGRATOR
1479 default 0xf1c28000 if DEBUG_SUNXI_UART0
1480 default 0xf1c28400 if DEBUG_SUNXI_UART1
1481 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1482 default 0xf6200000 if DEBUG_PXA_UART1
1483 default 0xf4090000 if ARCH_LPC32XX
1484 default 0xf4200000 if ARCH_GEMINI
1485 default 0xf7000000 if DEBUG_SUN9I_UART0
1486 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1487 DEBUG_S3C2410_UART0)
1488 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1489 DEBUG_S3C2410_UART1)
1490 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1491 DEBUG_S3C2410_UART2)
1492 default 0xf7fc9000 if DEBUG_BERLIN_UART
1493 default 0xf8007000 if DEBUG_HIP04_UART
1494 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1495 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1496 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1497 default 0xfb002000 if DEBUG_CNS3XXX
1498 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1499 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1500 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1501 default 0xfc705000 if DEBUG_ZTE_ZX
1502 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1503 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1504 default 0xfd000000 if ARCH_SPEAR13XX
1505 default 0xfd012000 if ARCH_MV78XX0
1506 default 0xfd883000 if DEBUG_ALPINE_UART0
1507 default 0xfde12000 if ARCH_DOVE
1508 default 0xfe012000 if ARCH_ORION5X
1509 default 0xf31004c0 if DEBUG_MESON_UARTAO
1510 default 0xfe017000 if DEBUG_MMP_UART2
1511 default 0xfe018000 if DEBUG_MMP_UART3
1512 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1513 default 0xfe230000 if DEBUG_PICOXCELL_UART
1514 default 0xfe300000 if DEBUG_BCM_KONA_UART
1515 default 0xfe800000 if ARCH_IOP32X
1516 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1517 default 0xfeb24000 if DEBUG_RK3X_UART0
1518 default 0xfeb26000 if DEBUG_RK3X_UART1
1519 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1520 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1521 default 0xfec02000 if DEBUG_SOCFPGA_UART0
1522 default 0xfec02100 if DEBUG_SOCFPGA_UART1
1523 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1524 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1525 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1526 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1527 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1528 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1529 default 0xfec90000 if DEBUG_RK32_UART2
1530 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1531 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1532 default 0xfed60000 if DEBUG_RK29_UART0
1533 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1534 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1535 default 0xfedc0000 if ARCH_EP93XX
1536 default 0xfee003f8 if FOOTBRIDGE
1537 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1538 default 0xfee82340 if ARCH_IOP13XX
1539 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1540 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1541 default 0xfef36000 if DEBUG_HIGHBANK_UART
1542 default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
1543 default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
1544 default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
1545 default 0xfefff700 if ARCH_IOP33X
1546 default 0xff003000 if DEBUG_U300_UART
1547 default 0xffd01000 if DEBUG_HIP01_UART
1548 default DEBUG_UART_PHYS if !MMU
1549 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1550 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1551 DEBUG_NETX_UART || \
1552 DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1553 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1554 DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
1556 config DEBUG_UART_8250_SHIFT
1557 int "Register offset shift for the 8250 debug UART"
1558 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1559 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
1560 DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
1563 config DEBUG_UART_8250_WORD
1564 bool "Use 32-bit accesses for 8250 UART"
1565 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1566 depends on DEBUG_UART_8250_SHIFT >= 2
1567 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART0 || \
1568 DEBUG_SOCFPGA_UART1 || ARCH_KEYSTONE || \
1569 DEBUG_ALPINE_UART0 || \
1570 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1571 DEBUG_DAVINCI_DA8XX_UART2 || \
1572 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1575 config DEBUG_UART_8250_FLOW_CONTROL
1576 bool "Enable flow control for 8250 UART"
1577 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1578 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1580 config DEBUG_UNCOMPRESS
1582 depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG
1583 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1584 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1586 This option influences the normal decompressor output for
1587 multiplatform kernels. Normally, multiplatform kernels disable
1588 decompressor output because it is not possible to know where to
1589 send the decompressor output.
1591 When this option is set, the selected DEBUG_LL output method
1592 will be re-used for normal decompressor output on multiplatform
1596 config UNCOMPRESS_INCLUDE
1598 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1599 PLAT_SAMSUNG || ARCH_EFM32 || \
1600 ARCH_SHMOBILE_LEGACY || ARCH_LPC18XX
1601 default "mach/uncompress.h"
1607 Say Y here if you want to have an early console using the
1608 kernel low-level debugging functions. Add earlyprintk to your
1609 kernel parameters to enable this console.
1611 config ARM_KPROBES_TEST
1612 tristate "Kprobes test module"
1613 depends on KPROBES && MODULES
1615 Perform tests of kprobes API and instruction set simulation.
1617 config PID_IN_CONTEXTIDR
1618 bool "Write the current PID to the CONTEXTIDR register"
1619 depends on CPU_COPY_V6
1621 Enabling this option causes the kernel to write the current PID to
1622 the PROCID field of the CONTEXTIDR register, at the expense of some
1623 additional instructions during context switch. Say Y here only if you
1624 are planning to use hardware trace tools with this kernel.
1626 config DEBUG_SET_MODULE_RONX
1627 bool "Set loadable kernel module data as NX and text as RO"
1630 This option helps catch unintended modifications to loadable
1631 kernel module's text and read-only data. It also prevents execution
1632 of module data. Such protection may interfere with run-time code
1633 patching and dynamic kernel tracing - and they might also protect
1634 against certain classes of kernel exploits.
1635 If in doubt, say "N".
1637 source "drivers/hwtracing/coresight/Kconfig"