3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
18 bool "Filter access to /dev/mem"
21 If this option is disabled, you allow userspace (root) access to all
22 of memory, including kernel and userspace memory. Accidental
23 access to this is obviously disastrous, but specific access can
24 be used by people debugging the kernel.
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
31 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
32 # If you know what you are doing and are willing to live without stack
33 # traces, you can get a slightly smaller kernel by setting this option to
34 # n, but then RMK will have to kill you ;).
37 depends on !THUMB2_KERNEL
38 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
40 If you say N here, the resulting kernel will be slightly smaller and
41 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
42 when a problem occurs with the kernel, the information that is
43 reported is severely limited.
46 bool "Enable stack unwinding support (EXPERIMENTAL)"
50 This option enables stack unwinding support in the kernel
51 using the information automatically generated by the
52 compiler. The resulting kernel image is slightly bigger but
53 the performance is not affected. Currently, this feature
54 only works with EABI compilers. If unsure say Y.
58 depends on FUNCTION_TRACER && FRAME_POINTER
62 bool "Verbose user fault messages"
64 When a user program crashes due to an exception, the kernel can
65 print a brief message explaining what the problem was. This is
66 sometimes helpful for debugging but serves no purpose on a
67 production system. Most people should say N here.
69 In addition, you need to pass user_debug=N on the kernel command
70 line to enable this feature. N consists of the sum of:
72 1 - undefined instruction events
74 4 - invalid data aborts
78 # These options are only for real kernel hackers who want to get their hands dirty.
80 bool "Kernel low-level debugging functions (read help!)"
81 depends on DEBUG_KERNEL
83 Say Y here to include definitions of printascii, printch, printhex
84 in the kernel. This is helpful if you are debugging code that
85 executes before the console is initialized.
87 Note that selecting this option will limit the kernel to a single
88 UART definition, as specified below. Attempting to boot the kernel
89 image on a different platform *will not work*, so this option should
90 not be enabled for kernels that are intended to be portable.
93 prompt "Kernel low-level debugging port"
96 config DEBUG_ASM9260_UART
97 bool "Kernel low-level debugging via asm9260 UART"
98 depends on MACH_ASM9260
100 Say Y here if you want the debug print routines to direct
101 their output to an UART or USART port on asm9260 based
104 DEBUG_UART_PHYS | DEBUG_UART_VIRT
106 0x80000000 | 0xf0000000 | UART0
107 0x80004000 | 0xf0004000 | UART1
108 0x80008000 | 0xf0008000 | UART2
109 0x8000c000 | 0xf000c000 | UART3
110 0x80010000 | 0xf0010000 | UART4
111 0x80014000 | 0xf0014000 | UART5
112 0x80018000 | 0xf0018000 | UART6
113 0x8001c000 | 0xf001c000 | UART7
114 0x80020000 | 0xf0020000 | UART8
115 0x80024000 | 0xf0024000 | UART9
117 config AT91_DEBUG_LL_DBGU0
118 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
119 select DEBUG_AT91_UART
121 depends on SOC_AT91RM9200 || SOC_AT91SAM9
123 config AT91_DEBUG_LL_DBGU1
124 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
125 select DEBUG_AT91_UART
127 depends on SOC_AT91SAM9 || SOC_SAMA5
129 config AT91_DEBUG_LL_DBGU2
130 bool "Kernel low-level debugging on sama5d4"
131 select DEBUG_AT91_UART
136 bool "Kernel low-level debugging on BCM2835 PL011 UART"
137 depends on ARCH_BCM2835
138 select DEBUG_UART_PL01X
140 config DEBUG_BCM_5301X
141 bool "Kernel low-level debugging on BCM5301X UART1"
142 depends on ARCH_BCM_5301X
143 select DEBUG_UART_8250
145 config DEBUG_BCM_KONA_UART
146 bool "Kernel low-level debugging messages via BCM KONA UART"
147 depends on ARCH_BCM_MOBILE
148 select DEBUG_UART_8250
150 Say Y here if you want kernel low-level debugging support
151 on Broadcom SoC platforms.
152 This low level debug works for Broadcom
153 mobile SoCs in the Kona family of chips (e.g. bcm28155,
157 bool "Kernel low-level debugging on BCM63XX UART"
158 depends on ARCH_BCM_63XX
159 select DEBUG_UART_BCM63XX
161 config DEBUG_BERLIN_UART
162 bool "Marvell Berlin SoC Debug UART"
163 depends on ARCH_BERLIN
164 select DEBUG_UART_8250
166 Say Y here if you want kernel low-level debugging support
167 on Marvell Berlin SoC based platforms.
169 config DEBUG_BRCMSTB_UART
170 bool "Use BRCMSTB UART for low-level debug"
171 depends on ARCH_BRCMSTB
172 select DEBUG_UART_8250
174 Say Y here if you want the debug print routines to direct
175 their output to the first serial port on these devices.
177 If you have a Broadcom STB chip and would like early print
178 messages to appear over the UART, select this option.
180 config DEBUG_CLPS711X_UART1
181 bool "Kernel low-level debugging messages via UART1"
182 depends on ARCH_CLPS711X
184 Say Y here if you want the debug print routines to direct
185 their output to the first serial port on these devices.
187 config DEBUG_CLPS711X_UART2
188 bool "Kernel low-level debugging messages via UART2"
189 depends on ARCH_CLPS711X
191 Say Y here if you want the debug print routines to direct
192 their output to the second serial port on these devices.
195 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
196 depends on ARCH_CNS3XXX
197 select DEBUG_UART_8250
199 Say Y here if you want the debug print routines to direct
200 their output to the CNS3xxx UART0.
202 config DEBUG_DAVINCI_DA8XX_UART1
203 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
204 depends on ARCH_DAVINCI_DA8XX
205 select DEBUG_UART_8250
207 Say Y here if you want the debug print routines to direct
208 their output to UART1 serial port on DaVinci DA8XX devices.
210 config DEBUG_DAVINCI_DA8XX_UART2
211 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
212 depends on ARCH_DAVINCI_DA8XX
213 select DEBUG_UART_8250
215 Say Y here if you want the debug print routines to direct
216 their output to UART2 serial port on DaVinci DA8XX devices.
218 config DEBUG_DAVINCI_DMx_UART0
219 bool "Kernel low-level debugging on DaVinci DMx using UART0"
220 depends on ARCH_DAVINCI_DMx
221 select DEBUG_UART_8250
223 Say Y here if you want the debug print routines to direct
224 their output to UART0 serial port on DaVinci DMx devices.
226 config DEBUG_ZYNQ_UART0
227 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
230 Say Y here if you want the debug print routines to direct
231 their output to UART0 on the Zynq platform.
233 config DEBUG_ZYNQ_UART1
234 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
237 Say Y here if you want the debug print routines to direct
238 their output to UART1 on the Zynq platform.
240 If you have a ZC702 board and want early boot messages to
241 appear on the USB serial adaptor, select this option.
243 config DEBUG_DC21285_PORT
244 bool "Kernel low-level debugging messages via footbridge serial port"
245 depends on FOOTBRIDGE
247 Say Y here if you want the debug print routines to direct
248 their output to the serial port in the DC21285 (Footbridge).
250 config DEBUG_FOOTBRIDGE_COM1
251 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
252 depends on FOOTBRIDGE
254 Say Y here if you want the debug print routines to direct
255 their output to the 8250 at PCI COM1.
257 config DEBUG_HI3620_UART
258 bool "Hisilicon HI3620 Debug UART"
259 depends on ARCH_HI3xxx
260 select DEBUG_UART_PL01X
262 Say Y here if you want kernel low-level debugging support
265 config DEBUG_HI3716_UART
266 bool "Hisilicon Hi3716 Debug UART"
267 depends on ARCH_HI3xxx
268 select DEBUG_UART_PL01X
270 Say Y here if you want kernel low-level debugging support
273 config DEBUG_HIGHBANK_UART
274 bool "Kernel low-level debugging messages via Highbank UART"
275 depends on ARCH_HIGHBANK
276 select DEBUG_UART_PL01X
278 Say Y here if you want the debug print routines to direct
279 their output to the UART on Highbank based devices.
281 config DEBUG_HIP04_UART
282 bool "Hisilicon HiP04 Debug UART"
283 depends on ARCH_HIP04
284 select DEBUG_UART_8250
286 Say Y here if you want kernel low-level debugging support
289 config DEBUG_HIX5HD2_UART
290 bool "Hisilicon Hix5hd2 Debug UART"
291 depends on ARCH_HIX5HD2
292 select DEBUG_UART_PL01X
294 Say Y here if you want kernel low-level debugging support
297 config DEBUG_IMX1_UART
298 bool "i.MX1 Debug UART"
301 Say Y here if you want kernel low-level debugging support
304 config DEBUG_IMX23_UART
305 bool "i.MX23 Debug UART"
307 select DEBUG_UART_PL01X
309 Say Y here if you want kernel low-level debugging support
312 config DEBUG_IMX25_UART
313 bool "i.MX25 Debug UART"
316 Say Y here if you want kernel low-level debugging support
319 config DEBUG_IMX21_IMX27_UART
320 bool "i.MX21 and i.MX27 Debug UART"
321 depends on SOC_IMX21 || SOC_IMX27
323 Say Y here if you want kernel low-level debugging support
326 config DEBUG_IMX28_UART
327 bool "i.MX28 Debug UART"
329 select DEBUG_UART_PL01X
331 Say Y here if you want kernel low-level debugging support
334 config DEBUG_IMX31_UART
335 bool "i.MX31 Debug UART"
338 Say Y here if you want kernel low-level debugging support
341 config DEBUG_IMX35_UART
342 bool "i.MX35 Debug UART"
345 Say Y here if you want kernel low-level debugging support
348 config DEBUG_IMX50_UART
349 bool "i.MX50 Debug UART"
352 Say Y here if you want kernel low-level debugging support
355 config DEBUG_IMX51_UART
356 bool "i.MX51 Debug UART"
359 Say Y here if you want kernel low-level debugging support
362 config DEBUG_IMX53_UART
363 bool "i.MX53 Debug UART"
366 Say Y here if you want kernel low-level debugging support
369 config DEBUG_IMX6Q_UART
370 bool "i.MX6Q/DL Debug UART"
373 Say Y here if you want kernel low-level debugging support
376 config DEBUG_IMX6SL_UART
377 bool "i.MX6SL Debug UART"
378 depends on SOC_IMX6SL
380 Say Y here if you want kernel low-level debugging support
383 config DEBUG_IMX6SX_UART
384 bool "i.MX6SX Debug UART"
385 depends on SOC_IMX6SX
387 Say Y here if you want kernel low-level debugging support
390 config DEBUG_KEYSTONE_UART0
391 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
392 depends on ARCH_KEYSTONE
393 select DEBUG_UART_8250
395 Say Y here if you want the debug print routines to direct
396 their output to UART0 serial port on KEYSTONE2 devices.
398 config DEBUG_KEYSTONE_UART1
399 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
400 depends on ARCH_KEYSTONE
401 select DEBUG_UART_8250
403 Say Y here if you want the debug print routines to direct
404 their output to UART1 serial port on KEYSTONE2 devices.
406 config DEBUG_MESON_UARTAO
407 bool "Kernel low-level debugging via Meson6 UARTAO"
408 depends on ARCH_MESON
410 Say Y here if you want kernel low-lever debugging support
411 on Amlogic Meson6 based platforms on the UARTAO.
413 config DEBUG_MMP_UART2
414 bool "Kernel low-level debugging message via MMP UART2"
416 select DEBUG_UART_8250
418 Say Y here if you want kernel low-level debugging support
421 config DEBUG_MMP_UART3
422 bool "Kernel low-level debugging message via MMP UART3"
424 select DEBUG_UART_8250
426 Say Y here if you want kernel low-level debugging support
429 config DEBUG_MSM_UART
430 bool "Kernel low-level debugging messages via MSM UART"
433 Say Y here if you want the debug print routines to direct
434 their output to the serial port on MSM devices.
436 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
437 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
438 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
439 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
441 MSM7X30 0xaca00000 0xe1000000 UART1
442 MSM7X30 0xacb00000 0xe1000000 UART2
443 MSM7X30 0xacc00000 0xe1000000 UART3
445 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
446 options based on your needs.
448 config DEBUG_QCOM_UARTDM
449 bool "Kernel low-level debugging messages via QCOM UARTDM"
452 Say Y here if you want the debug print routines to direct
453 their output to the serial port on Qualcomm devices.
455 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
456 APQ8084 0xf995e000 0xfa75e000
457 MSM8X60 0x19c40000 0xf0040000
458 MSM8960 0x16440000 0xf0040000
459 MSM8974 0xf991e000 0xfa71e000
461 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
462 options based on your needs.
464 config DEBUG_MVEBU_UART
465 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
466 depends on ARCH_MVEBU
467 select DEBUG_UART_8250
469 Say Y here if you want kernel low-level debugging support
470 on MVEBU based platforms.
472 This option should be used with the old bootloaders
473 that left the internal registers mapped at
474 0xd0000000. As of today, this is the case on
475 platforms such as the Globalscale Mirabox or the
476 Plathome OpenBlocks AX3, when using the original
479 If the wrong DEBUG_MVEBU_UART* option is selected,
480 when u-boot hands over to the kernel, the system
481 silently crashes, with no serial output at all.
483 config DEBUG_MVEBU_UART_ALTERNATE
484 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
485 depends on ARCH_MVEBU
486 select DEBUG_UART_8250
488 Say Y here if you want kernel low-level debugging support
489 on MVEBU based platforms.
491 This option should be used with the new bootloaders
492 that remap the internal registers at 0xf1000000.
494 If the wrong DEBUG_MVEBU_UART* option is selected,
495 when u-boot hands over to the kernel, the system
496 silently crashes, with no serial output at all.
502 Say Y here if you want kernel low-level debugging support
503 on Vybrid based platforms.
505 config DEBUG_NOMADIK_UART
506 bool "Kernel low-level debugging messages via NOMADIK UART"
507 depends on ARCH_NOMADIK
508 select DEBUG_UART_PL01X
510 Say Y here if you want kernel low-level debugging support
511 on NOMADIK based platforms.
513 config DEBUG_NSPIRE_CLASSIC_UART
514 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
515 depends on ARCH_NSPIRE
516 select DEBUG_UART_8250
518 Say Y here if you want kernel low-level debugging support
519 on TI-NSPIRE classic models.
521 config DEBUG_NSPIRE_CX_UART
522 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
523 depends on ARCH_NSPIRE
524 select DEBUG_UART_PL01X
526 Say Y here if you want kernel low-level debugging support
527 on TI-NSPIRE CX models.
529 config DEBUG_OMAP2UART1
530 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
531 depends on ARCH_OMAP2PLUS
532 select DEBUG_OMAP2PLUS_UART
534 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
535 omap3 torpedo and 3530 lv som.
537 config DEBUG_OMAP2UART2
538 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
539 depends on ARCH_OMAP2PLUS
540 select DEBUG_OMAP2PLUS_UART
542 config DEBUG_OMAP2UART3
543 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
544 depends on ARCH_OMAP2PLUS
545 select DEBUG_OMAP2PLUS_UART
547 config DEBUG_OMAP3UART3
548 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
549 depends on ARCH_OMAP2PLUS
550 select DEBUG_OMAP2PLUS_UART
552 This covers at least cm_t3x, beagle, crane, devkit8000,
553 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
556 config DEBUG_OMAP4UART3
557 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
558 depends on ARCH_OMAP2PLUS
559 select DEBUG_OMAP2PLUS_UART
561 config DEBUG_OMAP3UART4
562 bool "Kernel low-level debugging messages via OMAP36XX UART4"
563 depends on ARCH_OMAP2PLUS
564 select DEBUG_OMAP2PLUS_UART
566 config DEBUG_OMAP4UART4
567 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
568 depends on ARCH_OMAP2PLUS
569 select DEBUG_OMAP2PLUS_UART
571 config DEBUG_TI81XXUART1
572 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
573 depends on ARCH_OMAP2PLUS
574 select DEBUG_OMAP2PLUS_UART
576 config DEBUG_TI81XXUART2
577 bool "Kernel low-level debugging messages via TI81XX UART2"
578 depends on ARCH_OMAP2PLUS
579 select DEBUG_OMAP2PLUS_UART
581 config DEBUG_TI81XXUART3
582 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
583 depends on ARCH_OMAP2PLUS
584 select DEBUG_OMAP2PLUS_UART
586 config DEBUG_AM33XXUART1
587 bool "Kernel low-level debugging messages via AM33XX UART1"
588 depends on ARCH_OMAP2PLUS
589 select DEBUG_OMAP2PLUS_UART
591 config DEBUG_ZOOM_UART
592 bool "Kernel low-level debugging messages via Zoom2/3 UART"
593 depends on ARCH_OMAP2PLUS
594 select DEBUG_OMAP2PLUS_UART
596 config DEBUG_PICOXCELL_UART
597 depends on ARCH_PICOXCELL
598 bool "Use PicoXcell UART for low-level debug"
599 select DEBUG_UART_8250
601 Say Y here if you want kernel low-level debugging support
602 on PicoXcell based platforms.
604 config DEBUG_PXA_UART1
606 bool "Use PXA UART1 for low-level debug"
607 select DEBUG_UART_8250
609 Say Y here if you want kernel low-level debugging support
612 config DEBUG_REALVIEW_STD_PORT
613 bool "RealView Default UART"
614 depends on ARCH_REALVIEW
615 select DEBUG_UART_PL01X
617 Say Y here if you want the debug print routines to direct
618 their output to the serial port on RealView EB, PB11MP, PBA8
621 config DEBUG_REALVIEW_PB1176_PORT
622 bool "RealView PB1176 UART"
623 depends on MACH_REALVIEW_PB1176
624 select DEBUG_UART_PL01X
626 Say Y here if you want the debug print routines to direct
627 their output to the standard serial port on the RealView
630 config DEBUG_RK29_UART0
631 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
632 depends on ARCH_ROCKCHIP
633 select DEBUG_UART_8250
635 Say Y here if you want kernel low-level debugging support
636 on Rockchip based platforms.
638 config DEBUG_RK29_UART1
639 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
640 depends on ARCH_ROCKCHIP
641 select DEBUG_UART_8250
643 Say Y here if you want kernel low-level debugging support
644 on Rockchip based platforms.
646 config DEBUG_RK29_UART2
647 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
648 depends on ARCH_ROCKCHIP
649 select DEBUG_UART_8250
651 Say Y here if you want kernel low-level debugging support
652 on Rockchip based platforms.
654 config DEBUG_RK3X_UART0
655 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
656 depends on ARCH_ROCKCHIP
657 select DEBUG_UART_8250
659 Say Y here if you want kernel low-level debugging support
660 on Rockchip based platforms.
662 config DEBUG_RK3X_UART1
663 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
664 depends on ARCH_ROCKCHIP
665 select DEBUG_UART_8250
667 Say Y here if you want kernel low-level debugging support
668 on Rockchip based platforms.
670 config DEBUG_RK3X_UART2
671 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
672 depends on ARCH_ROCKCHIP
673 select DEBUG_UART_8250
675 Say Y here if you want kernel low-level debugging support
676 on Rockchip based platforms.
678 config DEBUG_RK3X_UART3
679 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
680 depends on ARCH_ROCKCHIP
681 select DEBUG_UART_8250
683 Say Y here if you want kernel low-level debugging support
684 on Rockchip based platforms.
686 config DEBUG_RK32_UART2
687 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
688 depends on ARCH_ROCKCHIP
689 select DEBUG_UART_8250
691 Say Y here if you want kernel low-level debugging support
692 on Rockchip RK32xx based platforms.
694 config DEBUG_R7S72100_SCIF2
695 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
696 depends on ARCH_R7S72100
698 Say Y here if you want kernel low-level debugging support
699 via SCIF2 on Renesas RZ/A1H (R7S72100).
701 config DEBUG_RCAR_GEN1_SCIF0
702 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
703 depends on ARCH_R8A7778
705 Say Y here if you want kernel low-level debugging support
706 via SCIF0 on Renesas R-Car M1A (R8A7778).
708 config DEBUG_RCAR_GEN1_SCIF2
709 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
710 depends on ARCH_R8A7779
712 Say Y here if you want kernel low-level debugging support
713 via SCIF2 on Renesas R-Car H1 (R8A7779).
715 config DEBUG_RCAR_GEN2_SCIF0
716 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
717 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
719 Say Y here if you want kernel low-level debugging support
720 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
723 config DEBUG_RCAR_GEN2_SCIF2
724 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
725 depends on ARCH_R8A7794
727 Say Y here if you want kernel low-level debugging support
728 via SCIF2 on Renesas R-Car E2 (R8A7794).
730 config DEBUG_RMOBILE_SCIFA0
731 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
732 depends on ARCH_R8A73A4 || ARCH_SH7372
734 Say Y here if you want kernel low-level debugging support
735 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
738 config DEBUG_RMOBILE_SCIFA1
739 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
740 depends on ARCH_R8A7740
742 Say Y here if you want kernel low-level debugging support
743 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
745 config DEBUG_RMOBILE_SCIFA4
746 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
747 depends on ARCH_SH73A0
749 Say Y here if you want kernel low-level debugging support
750 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
752 config DEBUG_S3C_UART0
753 depends on PLAT_SAMSUNG
754 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
755 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
756 select DEBUG_S5PV210_UART if ARCH_S5PV210
757 bool "Use Samsung S3C UART 0 for low-level debug"
759 Say Y here if you want the debug print routines to direct
760 their output to UART 0. The port must have been initialised
761 by the boot-loader before use.
763 config DEBUG_S3C_UART1
764 depends on PLAT_SAMSUNG
765 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
766 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
767 select DEBUG_S5PV210_UART if ARCH_S5PV210
768 bool "Use Samsung S3C UART 1 for low-level debug"
770 Say Y here if you want the debug print routines to direct
771 their output to UART 1. The port must have been initialised
772 by the boot-loader before use.
774 config DEBUG_S3C_UART2
775 depends on PLAT_SAMSUNG
776 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
777 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
778 select DEBUG_S5PV210_UART if ARCH_S5PV210
779 bool "Use Samsung S3C UART 2 for low-level debug"
781 Say Y here if you want the debug print routines to direct
782 their output to UART 2. The port must have been initialised
783 by the boot-loader before use.
785 config DEBUG_S3C_UART3
786 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
787 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
788 select DEBUG_S5PV210_UART if ARCH_S5PV210
789 bool "Use Samsung S3C UART 3 for low-level debug"
791 Say Y here if you want the debug print routines to direct
792 their output to UART 3. The port must have been initialised
793 by the boot-loader before use.
795 config DEBUG_S3C2410_UART0
796 depends on ARCH_S3C24XX
797 select DEBUG_S3C2410_UART
798 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
800 Say Y here if you want the debug print routines to direct
801 their output to UART 0. The port must have been initialised
802 by the boot-loader before use.
804 config DEBUG_S3C2410_UART1
805 depends on ARCH_S3C24XX
806 select DEBUG_S3C2410_UART
807 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
809 Say Y here if you want the debug print routines to direct
810 their output to UART 1. The port must have been initialised
811 by the boot-loader before use.
813 config DEBUG_S3C2410_UART2
814 depends on ARCH_S3C24XX
815 select DEBUG_S3C2410_UART
816 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
818 Say Y here if you want the debug print routines to direct
819 their output to UART 2. The port must have been initialised
820 by the boot-loader before use.
823 depends on ARCH_SA1100
824 bool "Use SA1100 UARTs for low-level debug"
826 Say Y here if you want kernel low-level debugging support
827 on SA-11x0 UART ports. The kernel will check for the first
828 enabled UART in a sequence 3-1-2.
830 config DEBUG_SOCFPGA_UART
831 depends on ARCH_SOCFPGA
832 bool "Use SOCFPGA UART for low-level debug"
833 select DEBUG_UART_8250
835 Say Y here if you want kernel low-level debugging support
836 on SOCFPGA based platforms.
838 config DEBUG_SUN9I_UART0
839 bool "Kernel low-level debugging messages via sun9i UART0"
840 depends on MACH_SUN9I
841 select DEBUG_UART_8250
843 Say Y here if you want kernel low-level debugging support
844 on Allwinner A80 based platforms on the UART0.
846 config DEBUG_SUNXI_UART0
847 bool "Kernel low-level debugging messages via sunXi UART0"
848 depends on ARCH_SUNXI
849 select DEBUG_UART_8250
851 Say Y here if you want kernel low-level debugging support
852 on Allwinner A1X based platforms on the UART0.
854 config DEBUG_SUNXI_UART1
855 bool "Kernel low-level debugging messages via sunXi UART1"
856 depends on ARCH_SUNXI
857 select DEBUG_UART_8250
859 Say Y here if you want kernel low-level debugging support
860 on Allwinner A1X based platforms on the UART1.
862 config DEBUG_SUNXI_R_UART
863 bool "Kernel low-level debugging messages via sunXi R_UART"
864 depends on MACH_SUN6I || MACH_SUN8I
865 select DEBUG_UART_8250
867 Say Y here if you want kernel low-level debugging support
868 on Allwinner A31/A23 based platforms on the R_UART.
870 config TEGRA_DEBUG_UART_AUTO_ODMDATA
871 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
872 depends on ARCH_TEGRA
873 select DEBUG_TEGRA_UART
875 Automatically determines which UART to use for low-level
876 debug based on the ODMDATA value. This value is part of
877 the BCT, and is written to the boot memory device using
878 nvflash, or other flashing tool. When bits 19:18 are 3,
879 then bits 17:15 indicate which UART to use; 0/1/2/3/4
882 config TEGRA_DEBUG_UARTA
883 bool "Kernel low-level debugging messages via Tegra UART A"
884 depends on ARCH_TEGRA
885 select DEBUG_TEGRA_UART
887 Say Y here if you want kernel low-level debugging support
888 on Tegra based platforms.
890 config TEGRA_DEBUG_UARTB
891 bool "Kernel low-level debugging messages via Tegra UART B"
892 depends on ARCH_TEGRA
893 select DEBUG_TEGRA_UART
895 Say Y here if you want kernel low-level debugging support
896 on Tegra based platforms.
898 config TEGRA_DEBUG_UARTC
899 bool "Kernel low-level debugging messages via Tegra UART C"
900 depends on ARCH_TEGRA
901 select DEBUG_TEGRA_UART
903 Say Y here if you want kernel low-level debugging support
904 on Tegra based platforms.
906 config TEGRA_DEBUG_UARTD
907 bool "Kernel low-level debugging messages via Tegra UART D"
908 depends on ARCH_TEGRA
909 select DEBUG_TEGRA_UART
911 Say Y here if you want kernel low-level debugging support
912 on Tegra based platforms.
914 config TEGRA_DEBUG_UARTE
915 bool "Kernel low-level debugging messages via Tegra UART E"
916 depends on ARCH_TEGRA
917 select DEBUG_TEGRA_UART
919 Say Y here if you want kernel low-level debugging support
920 on Tegra based platforms.
922 config DEBUG_SIRFPRIMA2_UART1
923 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
924 depends on ARCH_PRIMA2
926 Say Y here if you want the debug print routines to direct
927 their output to the uart1 port on SiRFprimaII devices.
929 config DEBUG_SIRFMARCO_UART1
930 bool "Kernel low-level debugging messages via SiRFmarco UART1"
931 depends on ARCH_MARCO
933 Say Y here if you want the debug print routines to direct
934 their output to the uart1 port on SiRFmarco devices.
936 config STIH41X_DEBUG_ASC2
937 bool "Use StiH415/416 ASC2 UART for low-level debug"
939 select DEBUG_STI_UART
941 Say Y here if you want kernel low-level debugging support
942 on STiH415/416 based platforms like b2000, which has
943 default UART wired up to ASC2.
947 config STIH41X_DEBUG_SBC_ASC1
948 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
950 select DEBUG_STI_UART
952 Say Y here if you want kernel low-level debugging support
953 on STiH415/416 based platforms like b2020. which has
954 default UART wired up to SBC ASC1.
958 config DEBUG_U300_UART
959 bool "Kernel low-level debugging messages via U300 UART0"
961 select DEBUG_UART_PL01X
963 Say Y here if you want the debug print routines to direct
964 their output to the uart port on U300 devices.
966 config DEBUG_UX500_UART
967 depends on ARCH_U8500
968 bool "Use Ux500 UART for low-level debug"
970 Say Y here if you want kernel low-level debugging support
971 on Ux500 based platforms.
973 config DEBUG_MT6589_UART0
974 bool "Mediatek mt6589 UART0"
975 depends on ARCH_MEDIATEK
976 select DEBUG_UART_8250
978 Say Y here if you want kernel low-level debugging support
979 for Mediatek mt6589 based platforms on UART0.
981 config DEBUG_MT8127_UART0
982 bool "Mediatek mt8127 UART0"
983 depends on ARCH_MEDIATEK
984 select DEBUG_UART_8250
986 Say Y here if you want kernel low-level debugging support
987 for Mediatek mt8127 based platforms on UART0.
989 config DEBUG_MT8135_UART3
990 bool "Mediatek mt8135 UART3"
991 depends on ARCH_MEDIATEK
992 select DEBUG_UART_8250
994 Say Y here if you want kernel low-level debugging support
995 for Mediatek mt8135 based platforms on UART3.
997 config DEBUG_VEXPRESS_UART0_DETECT
998 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
999 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1001 This option enables a simple heuristic which tries to determine
1002 the motherboard's memory map variant (original or RS1) and then
1003 choose the relevant UART0 base address.
1005 Note that this will only work with standard A-class core tiles,
1006 and may fail with non-standard SMM or custom software models.
1008 config DEBUG_VEXPRESS_UART0_CA9
1009 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1010 depends on ARCH_VEXPRESS
1011 select DEBUG_UART_PL01X
1013 This option selects UART0 at 0x10009000. Except for custom models,
1014 this applies only to the V2P-CA9 tile.
1016 config DEBUG_VEXPRESS_UART0_RS1
1017 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1018 depends on ARCH_VEXPRESS
1019 select DEBUG_UART_PL01X
1021 This option selects UART0 at 0x1c090000. This applies to most
1022 of the tiles using the RS1 memory map, including all new A-class
1023 core tiles, FPGA-based SMMs and software models.
1025 config DEBUG_VEXPRESS_UART0_CRX
1026 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1027 depends on ARCH_VEXPRESS && !MMU
1028 select DEBUG_UART_PL01X
1030 This option selects UART0 at 0xb0090000. This is appropriate for
1031 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1033 config DEBUG_VT8500_UART0
1034 bool "Use UART0 on VIA/Wondermedia SoCs"
1035 depends on ARCH_VT8500
1037 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1038 devices, including VT8500, WM8505, WM8650 and WM8850.
1040 config DEBUG_LL_UART_NONE
1041 bool "No low-level debugging UART"
1042 depends on !ARCH_MULTIPLATFORM
1044 Say Y here if your platform doesn't provide a UART option
1045 above. This relies on your platform choosing the right UART
1046 definition internally in order for low-level debugging to
1050 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1052 Say Y here if you want the debug print routines to direct
1053 their output to the EmbeddedICE macrocell's DCC channel using
1054 co-processor 14. This is known to work on the ARM9 style ICE
1055 channel and on the XScale with the PEEDI.
1057 Note that the system will appear to hang during boot if there
1058 is nothing connected to read from the DCC.
1060 config DEBUG_SEMIHOSTING
1061 bool "Kernel low-level debug output via semihosting I/O"
1063 Semihosting enables code running on an ARM target to use
1064 the I/O facilities on a host debugger/emulator through a
1065 simple SVC call. The host debugger or emulator must have
1066 semihosting enabled for the special svc call to be trapped
1067 otherwise the kernel will crash.
1069 This is known to work with OpenOCD, as well as
1070 ARM's Fast Models, or any other controlling environment
1071 that implements semihosting.
1073 For more details about semihosting, please see
1074 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1076 config DEBUG_LL_UART_8250
1077 bool "Kernel low-level debugging via 8250 UART"
1079 Say Y here if you wish the debug print routes to direct
1080 their output to an 8250 UART. You can use this option
1081 to provide the parameters for the 8250 UART rather than
1082 selecting one of the platform specific options above if
1083 you know the parameters for the port.
1085 This option is preferred over the platform specific
1086 options; the platform specific options are deprecated
1087 and will be soon removed.
1089 config DEBUG_LL_UART_EFM32
1090 bool "Kernel low-level debugging via efm32 UART"
1091 depends on ARCH_EFM32
1093 Say Y here if you want the debug print routines to direct
1094 their output to an UART or USART port on efm32 based
1095 machines. Use the following addresses for DEBUG_UART_PHYS:
1103 config DEBUG_LL_UART_PL01X
1104 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1106 Say Y here if you wish the debug print routes to direct
1107 their output to a PL01x Primecell UART. You can use
1108 this option to provide the parameters for the UART
1109 rather than selecting one of the platform specific
1110 options above if you know the parameters for the port.
1112 This option is preferred over the platform specific
1113 options; the platform specific options are deprecated
1114 and will be soon removed.
1118 config DEBUG_AT91_UART
1120 depends on ARCH_AT91
1122 config DEBUG_EXYNOS_UART
1125 config DEBUG_S3C2410_UART
1127 select DEBUG_S3C24XX_UART
1129 config DEBUG_S3C24XX_UART
1132 config DEBUG_S5PV210_UART
1135 config DEBUG_OMAP2PLUS_UART
1137 depends on ARCH_OMAP2PLUS
1139 config DEBUG_IMX_UART_PORT
1140 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1141 DEBUG_IMX25_UART || \
1142 DEBUG_IMX21_IMX27_UART || \
1143 DEBUG_IMX31_UART || \
1144 DEBUG_IMX35_UART || \
1145 DEBUG_IMX50_UART || \
1146 DEBUG_IMX51_UART || \
1147 DEBUG_IMX53_UART || \
1148 DEBUG_IMX6Q_UART || \
1149 DEBUG_IMX6SL_UART || \
1154 Choose UART port on which kernel low-level debug messages
1157 config DEBUG_VF_UART_PORT
1158 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1161 depends on SOC_VF610
1163 Choose UART port on which kernel low-level debug messages
1166 config DEBUG_TEGRA_UART
1168 depends on ARCH_TEGRA
1170 config DEBUG_STI_UART
1174 config DEBUG_LL_INCLUDE
1176 default "debug/sa1100.S" if DEBUG_SA1100
1177 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1178 default "debug/at91.S" if DEBUG_AT91_UART
1179 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1180 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1181 default "debug/meson.S" if DEBUG_MESON_UARTAO
1182 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1183 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1184 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1185 default "debug/icedcc.S" if DEBUG_ICEDCC
1186 default "debug/imx.S" 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 || \
1197 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1198 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1199 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1200 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1201 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1202 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1203 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1204 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1205 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1206 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1207 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1208 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1209 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1210 default "debug/sti.S" if DEBUG_STI_UART
1211 default "debug/tegra.S" if DEBUG_TEGRA_UART
1212 default "debug/ux500.S" if DEBUG_UX500_UART
1213 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1214 default "debug/vf.S" if DEBUG_VF_UART
1215 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1216 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1217 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1218 default "mach/debug-macro.S"
1220 # Compatibility options for PL01x
1221 config DEBUG_UART_PL01X
1222 def_bool ARCH_EP93XX || \
1223 ARCH_INTEGRATOR || \
1229 # Compatibility options for 8250
1230 config DEBUG_UART_8250
1231 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1232 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1233 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1234 ARCH_IOP33X || ARCH_IXP4XX || \
1235 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1237 # Compatibility options for BCM63xx
1238 config DEBUG_UART_BCM63XX
1239 def_bool ARCH_BCM_63XX
1241 config DEBUG_UART_PHYS
1242 hex "Physical base address of debug UART"
1243 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1244 default 0x01c28000 if DEBUG_SUNXI_UART0
1245 default 0x01c28400 if DEBUG_SUNXI_UART1
1246 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1247 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1248 default 0x01f02800 if DEBUG_SUNXI_R_UART
1249 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1250 default 0x02531000 if DEBUG_KEYSTONE_UART1
1251 default 0x03010fe0 if ARCH_RPC
1252 default 0x07000000 if DEBUG_SUN9I_UART0
1253 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1254 DEBUG_VEXPRESS_UART0_CA9
1255 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1256 default 0x10124000 if DEBUG_RK3X_UART0
1257 default 0x10126000 if DEBUG_RK3X_UART1
1258 default 0x101f1000 if ARCH_VERSATILE
1259 default 0x101fb000 if DEBUG_NOMADIK_UART
1260 default 0x11002000 if DEBUG_MT8127_UART0
1261 default 0x11006000 if DEBUG_MT6589_UART0
1262 default 0x11009000 if DEBUG_MT8135_UART3
1263 default 0x16000000 if ARCH_INTEGRATOR
1264 default 0x18000300 if DEBUG_BCM_5301X
1265 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1266 default 0x20060000 if DEBUG_RK29_UART0
1267 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1268 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1269 default 0x20201000 if DEBUG_BCM2835
1270 default 0x3e000000 if DEBUG_BCM_KONA_UART
1271 default 0x4000e400 if DEBUG_LL_UART_EFM32
1272 default 0x40090000 if ARCH_LPC32XX
1273 default 0x40100000 if DEBUG_PXA_UART1
1274 default 0x42000000 if ARCH_GEMINI
1275 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1276 DEBUG_S3C2410_UART0)
1277 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1278 DEBUG_S3C2410_UART1)
1279 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1280 DEBUG_S3C2410_UART2)
1281 default 0x78000000 if DEBUG_CNS3XXX
1282 default 0x7c0003f8 if FOOTBRIDGE
1283 default 0x78000000 if DEBUG_CNS3XXX
1284 default 0x80010000 if DEBUG_ASM9260_UART
1285 default 0x80070000 if DEBUG_IMX23_UART
1286 default 0x80074000 if DEBUG_IMX28_UART
1287 default 0x80230000 if DEBUG_PICOXCELL_UART
1288 default 0x808c0000 if ARCH_EP93XX
1289 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1290 default 0xa9a00000 if DEBUG_MSM_UART
1291 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1292 default 0xc0013000 if DEBUG_U300_UART
1293 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1294 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1295 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1296 default 0xd0012000 if DEBUG_MVEBU_UART
1297 default 0xc81004c0 if DEBUG_MESON_UARTAO
1298 default 0xd4017000 if DEBUG_MMP_UART2
1299 default 0xd4018000 if DEBUG_MMP_UART3
1300 default 0xe0000000 if ARCH_SPEAR13XX
1301 default 0xe4007000 if DEBUG_HIP04_UART
1302 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1303 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1304 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1305 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1306 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1307 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1308 default 0xf0000be0 if ARCH_EBSA110
1309 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1310 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1311 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1313 default 0xf7fc9000 if DEBUG_BERLIN_UART
1314 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1315 default 0xf991e000 if DEBUG_QCOM_UARTDM
1316 default 0xfcb00000 if DEBUG_HI3620_UART
1317 default 0xfe800000 if ARCH_IOP32X
1318 default 0xff690000 if DEBUG_RK32_UART2
1319 default 0xffc02000 if DEBUG_SOCFPGA_UART
1320 default 0xffd82340 if ARCH_IOP13XX
1321 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1322 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1323 default 0xfff36000 if DEBUG_HIGHBANK_UART
1324 default 0xfffe8600 if DEBUG_UART_BCM63XX
1325 default 0xfffff700 if ARCH_IOP33X
1326 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1327 DEBUG_LL_UART_EFM32 || \
1328 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1329 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1330 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1331 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1332 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1333 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1334 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1336 config DEBUG_UART_VIRT
1337 hex "Virtual base address of debug UART"
1338 default 0xe0010fe0 if ARCH_RPC
1339 default 0xe1000000 if DEBUG_MSM_UART
1340 default 0xf0000be0 if ARCH_EBSA110
1341 default 0xf0010000 if DEBUG_ASM9260_UART
1342 default 0xf01fb000 if DEBUG_NOMADIK_UART
1343 default 0xf0201000 if DEBUG_BCM2835
1344 default 0xf1000300 if DEBUG_BCM_5301X
1345 default 0xf1002000 if DEBUG_MT8127_UART0
1346 default 0xf1006000 if DEBUG_MT6589_UART0
1347 default 0xf1009000 if DEBUG_MT8135_UART3
1348 default 0xf11f1000 if ARCH_VERSATILE
1349 default 0xf1600000 if ARCH_INTEGRATOR
1350 default 0xf1c28000 if DEBUG_SUNXI_UART0
1351 default 0xf1c28400 if DEBUG_SUNXI_UART1
1352 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1353 default 0xf6200000 if DEBUG_PXA_UART1
1354 default 0xf4090000 if ARCH_LPC32XX
1355 default 0xf4200000 if ARCH_GEMINI
1356 default 0xf7000000 if DEBUG_SUN9I_UART0
1357 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1358 DEBUG_S3C2410_UART0)
1359 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1360 DEBUG_S3C2410_UART1)
1361 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1362 DEBUG_S3C2410_UART2)
1363 default 0xf7fc9000 if DEBUG_BERLIN_UART
1364 default 0xf8007000 if DEBUG_HIP04_UART
1365 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1366 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1367 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1368 default 0xfb002000 if DEBUG_CNS3XXX
1369 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1370 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1371 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1372 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1373 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1374 default 0xfd000000 if ARCH_SPEAR13XX
1375 default 0xfd012000 if ARCH_MV78XX0
1376 default 0xfde12000 if ARCH_DOVE
1377 default 0xfe012000 if ARCH_ORION5X
1378 default 0xf31004c0 if DEBUG_MESON_UARTAO
1379 default 0xfe017000 if DEBUG_MMP_UART2
1380 default 0xfe018000 if DEBUG_MMP_UART3
1381 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1382 default 0xfe230000 if DEBUG_PICOXCELL_UART
1383 default 0xfe300000 if DEBUG_BCM_KONA_UART
1384 default 0xfe800000 if ARCH_IOP32X
1385 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1386 default 0xfeb24000 if DEBUG_RK3X_UART0
1387 default 0xfeb26000 if DEBUG_RK3X_UART1
1388 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1389 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1390 default 0xfec02000 if DEBUG_SOCFPGA_UART
1391 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1392 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1393 default 0xfec90000 if DEBUG_RK32_UART2
1394 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1395 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1396 default 0xfed60000 if DEBUG_RK29_UART0
1397 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1398 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1399 default 0xfedc0000 if ARCH_EP93XX
1400 default 0xfee003f8 if FOOTBRIDGE
1401 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1402 default 0xfee82340 if ARCH_IOP13XX
1403 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1404 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1405 default 0xfef36000 if DEBUG_HIGHBANK_UART
1406 default 0xfefff700 if ARCH_IOP33X
1407 default 0xff003000 if DEBUG_U300_UART
1408 default DEBUG_UART_PHYS if !MMU
1409 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1410 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1411 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1412 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1414 config DEBUG_UART_8250_SHIFT
1415 int "Register offset shift for the 8250 debug UART"
1416 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1417 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1420 config DEBUG_UART_8250_WORD
1421 bool "Use 32-bit accesses for 8250 UART"
1422 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1423 depends on DEBUG_UART_8250_SHIFT >= 2
1424 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1426 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1427 DEBUG_DAVINCI_DA8XX_UART2 || \
1428 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1431 config DEBUG_UART_8250_FLOW_CONTROL
1432 bool "Enable flow control for 8250 UART"
1433 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1434 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1436 config DEBUG_UNCOMPRESS
1438 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1439 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1440 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1442 This option influences the normal decompressor output for
1443 multiplatform kernels. Normally, multiplatform kernels disable
1444 decompressor output because it is not possible to know where to
1445 send the decompressor output.
1447 When this option is set, the selected DEBUG_LL output method
1448 will be re-used for normal decompressor output on multiplatform
1452 config UNCOMPRESS_INCLUDE
1454 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1455 PLAT_SAMSUNG || ARCH_EFM32
1456 default "mach/uncompress.h"
1462 Say Y here if you want to have an early console using the
1463 kernel low-level debugging functions. Add earlyprintk to your
1464 kernel parameters to enable this console.
1466 config ARM_KPROBES_TEST
1467 tristate "Kprobes test module"
1468 depends on KPROBES && MODULES
1470 Perform tests of kprobes API and instruction set simulation.
1472 config PID_IN_CONTEXTIDR
1473 bool "Write the current PID to the CONTEXTIDR register"
1474 depends on CPU_COPY_V6
1476 Enabling this option causes the kernel to write the current PID to
1477 the PROCID field of the CONTEXTIDR register, at the expense of some
1478 additional instructions during context switch. Say Y here only if you
1479 are planning to use hardware trace tools with this kernel.
1481 config DEBUG_SET_MODULE_RONX
1482 bool "Set loadable kernel module data as NX and text as RO"
1485 This option helps catch unintended modifications to loadable
1486 kernel module's text and read-only data. It also prevents execution
1487 of module data. Such protection may interfere with run-time code
1488 patching and dynamic kernel tracing - and they might also protect
1489 against certain classes of kernel exploits.
1490 If in doubt, say "N".
1492 menuconfig CORESIGHT
1493 bool "CoreSight Tracing Support"
1496 This framework provides a kernel interface for the CoreSight debug
1497 and trace drivers to register themselves with. It's intended to build
1498 a topological view of the CoreSight components based on a DT
1499 specification and configure the right serie of components when a
1500 trace source gets enabled.
1503 config CORESIGHT_LINKS_AND_SINKS
1504 bool "CoreSight Link and Sink drivers"
1506 This enables support for CoreSight link and sink drivers that are
1507 responsible for transporting and collecting the trace data
1508 respectively. Link and sinks are dynamically aggregated with a trace
1509 entity at run time to form a complete trace path.
1511 config CORESIGHT_LINK_AND_SINK_TMC
1512 bool "Coresight generic TMC driver"
1513 depends on CORESIGHT_LINKS_AND_SINKS
1515 This enables support for the Trace Memory Controller driver. Depending
1516 on its configuration the device can act as a link (embedded trace router
1517 - ETR) or sink (embedded trace FIFO). The driver complies with the
1518 generic implementation of the component without special enhancement or
1521 config CORESIGHT_SINK_TPIU
1522 bool "Coresight generic TPIU driver"
1523 depends on CORESIGHT_LINKS_AND_SINKS
1525 This enables support for the Trace Port Interface Unit driver, responsible
1526 for bridging the gap between the on-chip coresight components and a trace
1527 port collection engine, typically connected to an external host for use
1528 case capturing more traces than the on-board coresight memory can handle.
1530 config CORESIGHT_SINK_ETBV10
1531 bool "Coresight ETBv1.0 driver"
1532 depends on CORESIGHT_LINKS_AND_SINKS
1534 This enables support for the Embedded Trace Buffer version 1.0 driver
1535 that complies with the generic implementation of the component without
1536 special enhancement or added features.
1538 config CORESIGHT_SOURCE_ETM3X
1539 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1540 select CORESIGHT_LINKS_AND_SINKS
1542 This driver provides support for processor ETM3.x and PTM1.x modules,
1543 which allows tracing the instructions that a processor is executing
1544 This is primarily useful for instruction level tracing. Depending
1545 the ETM version data tracing may also be available.