3 source "lib/Kconfig.debug"
6 bool "Export kernel pagetable layout to userspace via debugfs"
7 depends on DEBUG_KERNEL
10 Say Y here if you want to show the kernel pagetable layout in a
11 debugfs file. This information is only useful for kernel developers
12 who are working in architecture specific areas of the kernel.
13 It is probably not a good idea to enable this feature in a production
18 bool "Filter access to /dev/mem"
21 If this option is disabled, you allow userspace (root) access to all
22 of memory, including kernel and userspace memory. Accidental
23 access to this is obviously disastrous, but specific access can
24 be used by people debugging the kernel.
26 If this option is switched on, the /dev/mem file only allows
27 userspace access to memory mapped peripherals.
31 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
32 # If you know what you are doing and are willing to live without stack
33 # traces, you can get a slightly smaller kernel by setting this option to
34 # n, but then RMK will have to kill you ;).
37 depends on !THUMB2_KERNEL
38 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
40 If you say N here, the resulting kernel will be slightly smaller and
41 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
42 when a problem occurs with the kernel, the information that is
43 reported is severely limited.
46 bool "Enable stack unwinding support (EXPERIMENTAL)"
50 This option enables stack unwinding support in the kernel
51 using the information automatically generated by the
52 compiler. The resulting kernel image is slightly bigger but
53 the performance is not affected. Currently, this feature
54 only works with EABI compilers. If unsure say Y.
58 depends on FUNCTION_TRACER && FRAME_POINTER
62 bool "Verbose user fault messages"
64 When a user program crashes due to an exception, the kernel can
65 print a brief message explaining what the problem was. This is
66 sometimes helpful for debugging but serves no purpose on a
67 production system. Most people should say N here.
69 In addition, you need to pass user_debug=N on the kernel command
70 line to enable this feature. N consists of the sum of:
72 1 - undefined instruction events
74 4 - invalid data aborts
78 # These options are only for real kernel hackers who want to get their hands dirty.
80 bool "Kernel low-level debugging functions (read help!)"
81 depends on DEBUG_KERNEL
83 Say Y here to include definitions of printascii, printch, printhex
84 in the kernel. This is helpful if you are debugging code that
85 executes before the console is initialized.
87 Note that selecting this option will limit the kernel to a single
88 UART definition, as specified below. Attempting to boot the kernel
89 image on a different platform *will not work*, so this option should
90 not be enabled for kernels that are intended to be portable.
93 prompt "Kernel low-level debugging port"
96 config DEBUG_ASM9260_UART
97 bool "Kernel low-level debugging via asm9260 UART"
98 depends on MACH_ASM9260
100 Say Y here if you want the debug print routines to direct
101 their output to an UART or USART port on asm9260 based
104 DEBUG_UART_PHYS | DEBUG_UART_VIRT
106 0x80000000 | 0xf0000000 | UART0
107 0x80004000 | 0xf0004000 | UART1
108 0x80008000 | 0xf0008000 | UART2
109 0x8000c000 | 0xf000c000 | UART3
110 0x80010000 | 0xf0010000 | UART4
111 0x80014000 | 0xf0014000 | UART5
112 0x80018000 | 0xf0018000 | UART6
113 0x8001c000 | 0xf001c000 | UART7
114 0x80020000 | 0xf0020000 | UART8
115 0x80024000 | 0xf0024000 | UART9
117 config AT91_DEBUG_LL_DBGU0
118 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"
119 select DEBUG_AT91_UART
120 depends on HAVE_AT91_DBGU0
122 config AT91_DEBUG_LL_DBGU1
123 bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
124 select DEBUG_AT91_UART
125 depends on HAVE_AT91_DBGU1
127 config AT91_DEBUG_LL_DBGU2
128 bool "Kernel low-level debugging on sama5d4"
129 select DEBUG_AT91_UART
130 depends on HAVE_AT91_DBGU2
133 bool "Kernel low-level debugging on BCM2835 PL011 UART"
134 depends on ARCH_BCM2835
135 select DEBUG_UART_PL01X
137 config DEBUG_BCM_5301X
138 bool "Kernel low-level debugging on BCM5301X UART1"
139 depends on ARCH_BCM_5301X
140 select DEBUG_UART_8250
142 config DEBUG_BCM_KONA_UART
143 bool "Kernel low-level debugging messages via BCM KONA UART"
144 depends on ARCH_BCM_MOBILE
145 select DEBUG_UART_8250
147 Say Y here if you want kernel low-level debugging support
148 on Broadcom SoC platforms.
149 This low level debug works for Broadcom
150 mobile SoCs in the Kona family of chips (e.g. bcm28155,
154 bool "Kernel low-level debugging on BCM63XX UART"
155 depends on ARCH_BCM_63XX
156 select DEBUG_UART_BCM63XX
158 config DEBUG_BERLIN_UART
159 bool "Marvell Berlin SoC Debug UART"
160 depends on ARCH_BERLIN
161 select DEBUG_UART_8250
163 Say Y here if you want kernel low-level debugging support
164 on Marvell Berlin SoC based platforms.
166 config DEBUG_BRCMSTB_UART
167 bool "Use BRCMSTB UART for low-level debug"
168 depends on ARCH_BRCMSTB
169 select DEBUG_UART_8250
171 Say Y here if you want the debug print routines to direct
172 their output to the first serial port on these devices.
174 If you have a Broadcom STB chip and would like early print
175 messages to appear over the UART, select this option.
177 config DEBUG_CLPS711X_UART1
178 bool "Kernel low-level debugging messages via UART1"
179 depends on ARCH_CLPS711X
181 Say Y here if you want the debug print routines to direct
182 their output to the first serial port on these devices.
184 config DEBUG_CLPS711X_UART2
185 bool "Kernel low-level debugging messages via UART2"
186 depends on ARCH_CLPS711X
188 Say Y here if you want the debug print routines to direct
189 their output to the second serial port on these devices.
192 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
193 depends on ARCH_CNS3XXX
194 select DEBUG_UART_8250
196 Say Y here if you want the debug print routines to direct
197 their output to the CNS3xxx UART0.
199 config DEBUG_DAVINCI_DA8XX_UART1
200 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
201 depends on ARCH_DAVINCI_DA8XX
202 select DEBUG_UART_8250
204 Say Y here if you want the debug print routines to direct
205 their output to UART1 serial port on DaVinci DA8XX devices.
207 config DEBUG_DAVINCI_DA8XX_UART2
208 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
209 depends on ARCH_DAVINCI_DA8XX
210 select DEBUG_UART_8250
212 Say Y here if you want the debug print routines to direct
213 their output to UART2 serial port on DaVinci DA8XX devices.
215 config DEBUG_DAVINCI_DMx_UART0
216 bool "Kernel low-level debugging on DaVinci DMx using UART0"
217 depends on ARCH_DAVINCI_DMx
218 select DEBUG_UART_8250
220 Say Y here if you want the debug print routines to direct
221 their output to UART0 serial port on DaVinci DMx devices.
223 config DEBUG_ZYNQ_UART0
224 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
227 Say Y here if you want the debug print routines to direct
228 their output to UART0 on the Zynq platform.
230 config DEBUG_ZYNQ_UART1
231 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
234 Say Y here if you want the debug print routines to direct
235 their output to UART1 on the Zynq platform.
237 If you have a ZC702 board and want early boot messages to
238 appear on the USB serial adaptor, select this option.
240 config DEBUG_DC21285_PORT
241 bool "Kernel low-level debugging messages via footbridge serial port"
242 depends on FOOTBRIDGE
244 Say Y here if you want the debug print routines to direct
245 their output to the serial port in the DC21285 (Footbridge).
247 config DEBUG_FOOTBRIDGE_COM1
248 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
249 depends on FOOTBRIDGE
251 Say Y here if you want the debug print routines to direct
252 their output to the 8250 at PCI COM1.
254 config DEBUG_HI3620_UART
255 bool "Hisilicon HI3620 Debug UART"
256 depends on ARCH_HI3xxx
257 select DEBUG_UART_PL01X
259 Say Y here if you want kernel low-level debugging support
262 config DEBUG_HI3716_UART
263 bool "Hisilicon Hi3716 Debug UART"
264 depends on ARCH_HI3xxx
265 select DEBUG_UART_PL01X
267 Say Y here if you want kernel low-level debugging support
270 config DEBUG_HIGHBANK_UART
271 bool "Kernel low-level debugging messages via Highbank UART"
272 depends on ARCH_HIGHBANK
273 select DEBUG_UART_PL01X
275 Say Y here if you want the debug print routines to direct
276 their output to the UART on Highbank based devices.
278 config DEBUG_HIP04_UART
279 bool "Hisilicon HiP04 Debug UART"
280 depends on ARCH_HIP04
281 select DEBUG_UART_8250
283 Say Y here if you want kernel low-level debugging support
286 config DEBUG_HIX5HD2_UART
287 bool "Hisilicon Hix5hd2 Debug UART"
288 depends on ARCH_HIX5HD2
289 select DEBUG_UART_PL01X
291 Say Y here if you want kernel low-level debugging support
294 config DEBUG_IMX1_UART
295 bool "i.MX1 Debug UART"
298 Say Y here if you want kernel low-level debugging support
301 config DEBUG_IMX23_UART
302 bool "i.MX23 Debug UART"
304 select DEBUG_UART_PL01X
306 Say Y here if you want kernel low-level debugging support
309 config DEBUG_IMX25_UART
310 bool "i.MX25 Debug UART"
313 Say Y here if you want kernel low-level debugging support
316 config DEBUG_IMX21_IMX27_UART
317 bool "i.MX21 and i.MX27 Debug UART"
318 depends on SOC_IMX21 || SOC_IMX27
320 Say Y here if you want kernel low-level debugging support
323 config DEBUG_IMX28_UART
324 bool "i.MX28 Debug UART"
326 select DEBUG_UART_PL01X
328 Say Y here if you want kernel low-level debugging support
331 config DEBUG_IMX31_UART
332 bool "i.MX31 Debug UART"
335 Say Y here if you want kernel low-level debugging support
338 config DEBUG_IMX35_UART
339 bool "i.MX35 Debug UART"
342 Say Y here if you want kernel low-level debugging support
345 config DEBUG_IMX50_UART
346 bool "i.MX50 Debug UART"
349 Say Y here if you want kernel low-level debugging support
352 config DEBUG_IMX51_UART
353 bool "i.MX51 Debug UART"
356 Say Y here if you want kernel low-level debugging support
359 config DEBUG_IMX53_UART
360 bool "i.MX53 Debug UART"
363 Say Y here if you want kernel low-level debugging support
366 config DEBUG_IMX6Q_UART
367 bool "i.MX6Q/DL Debug UART"
370 Say Y here if you want kernel low-level debugging support
373 config DEBUG_IMX6SL_UART
374 bool "i.MX6SL Debug UART"
375 depends on SOC_IMX6SL
377 Say Y here if you want kernel low-level debugging support
380 config DEBUG_IMX6SX_UART
381 bool "i.MX6SX Debug UART"
382 depends on SOC_IMX6SX
384 Say Y here if you want kernel low-level debugging support
387 config DEBUG_KEYSTONE_UART0
388 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
389 depends on ARCH_KEYSTONE
390 select DEBUG_UART_8250
392 Say Y here if you want the debug print routines to direct
393 their output to UART0 serial port on KEYSTONE2 devices.
395 config DEBUG_KEYSTONE_UART1
396 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
397 depends on ARCH_KEYSTONE
398 select DEBUG_UART_8250
400 Say Y here if you want the debug print routines to direct
401 their output to UART1 serial port on KEYSTONE2 devices.
403 config DEBUG_MESON_UARTAO
404 bool "Kernel low-level debugging via Meson6 UARTAO"
405 depends on ARCH_MESON
407 Say Y here if you want kernel low-lever debugging support
408 on Amlogic Meson6 based platforms on the UARTAO.
410 config DEBUG_MMP_UART2
411 bool "Kernel low-level debugging message via MMP UART2"
413 select DEBUG_UART_8250
415 Say Y here if you want kernel low-level debugging support
418 config DEBUG_MMP_UART3
419 bool "Kernel low-level debugging message via MMP UART3"
421 select DEBUG_UART_8250
423 Say Y here if you want kernel low-level debugging support
426 config DEBUG_MSM_UART
427 bool "Kernel low-level debugging messages via MSM UART"
430 Say Y here if you want the debug print routines to direct
431 their output to the serial port on MSM devices.
433 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE #
434 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
435 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
436 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
438 MSM7X30 0xaca00000 0xe1000000 UART1
439 MSM7X30 0xacb00000 0xe1000000 UART2
440 MSM7X30 0xacc00000 0xe1000000 UART3
442 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
443 options based on your needs.
445 config DEBUG_QCOM_UARTDM
446 bool "Kernel low-level debugging messages via QCOM UARTDM"
449 Say Y here if you want the debug print routines to direct
450 their output to the serial port on Qualcomm devices.
452 ARCH DEBUG_UART_PHYS DEBUG_UART_BASE
453 APQ8084 0xf995e000 0xfa75e000
454 MSM8X60 0x19c40000 0xf0040000
455 MSM8960 0x16440000 0xf0040000
456 MSM8974 0xf991e000 0xfa71e000
458 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
459 options based on your needs.
461 config DEBUG_MVEBU_UART
462 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
463 depends on ARCH_MVEBU
464 select DEBUG_UART_8250
466 Say Y here if you want kernel low-level debugging support
467 on MVEBU based platforms.
469 This option should be used with the old bootloaders
470 that left the internal registers mapped at
471 0xd0000000. As of today, this is the case on
472 platforms such as the Globalscale Mirabox or the
473 Plathome OpenBlocks AX3, when using the original
476 If the wrong DEBUG_MVEBU_UART* option is selected,
477 when u-boot hands over to the kernel, the system
478 silently crashes, with no serial output at all.
480 config DEBUG_MVEBU_UART_ALTERNATE
481 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
482 depends on ARCH_MVEBU
483 select DEBUG_UART_8250
485 Say Y here if you want kernel low-level debugging support
486 on MVEBU based platforms.
488 This option should be used with the new bootloaders
489 that remap the internal registers at 0xf1000000.
491 If the wrong DEBUG_MVEBU_UART* option is selected,
492 when u-boot hands over to the kernel, the system
493 silently crashes, with no serial output at all.
499 Say Y here if you want kernel low-level debugging support
500 on Vybrid based platforms.
502 config DEBUG_NOMADIK_UART
503 bool "Kernel low-level debugging messages via NOMADIK UART"
504 depends on ARCH_NOMADIK
505 select DEBUG_UART_PL01X
507 Say Y here if you want kernel low-level debugging support
508 on NOMADIK based platforms.
510 config DEBUG_NSPIRE_CLASSIC_UART
511 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
512 depends on ARCH_NSPIRE
513 select DEBUG_UART_8250
515 Say Y here if you want kernel low-level debugging support
516 on TI-NSPIRE classic models.
518 config DEBUG_NSPIRE_CX_UART
519 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
520 depends on ARCH_NSPIRE
521 select DEBUG_UART_PL01X
523 Say Y here if you want kernel low-level debugging support
524 on TI-NSPIRE CX models.
526 config DEBUG_OMAP2UART1
527 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
528 depends on ARCH_OMAP2PLUS
529 select DEBUG_OMAP2PLUS_UART
531 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
532 omap3 torpedo and 3530 lv som.
534 config DEBUG_OMAP2UART2
535 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
536 depends on ARCH_OMAP2PLUS
537 select DEBUG_OMAP2PLUS_UART
539 config DEBUG_OMAP2UART3
540 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
541 depends on ARCH_OMAP2PLUS
542 select DEBUG_OMAP2PLUS_UART
544 config DEBUG_OMAP3UART3
545 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
546 depends on ARCH_OMAP2PLUS
547 select DEBUG_OMAP2PLUS_UART
549 This covers at least cm_t3x, beagle, crane, devkit8000,
550 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
553 config DEBUG_OMAP4UART3
554 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
555 depends on ARCH_OMAP2PLUS
556 select DEBUG_OMAP2PLUS_UART
558 config DEBUG_OMAP3UART4
559 bool "Kernel low-level debugging messages via OMAP36XX UART4"
560 depends on ARCH_OMAP2PLUS
561 select DEBUG_OMAP2PLUS_UART
563 config DEBUG_OMAP4UART4
564 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
565 depends on ARCH_OMAP2PLUS
566 select DEBUG_OMAP2PLUS_UART
568 config DEBUG_TI81XXUART1
569 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
570 depends on ARCH_OMAP2PLUS
571 select DEBUG_OMAP2PLUS_UART
573 config DEBUG_TI81XXUART2
574 bool "Kernel low-level debugging messages via TI81XX UART2"
575 depends on ARCH_OMAP2PLUS
576 select DEBUG_OMAP2PLUS_UART
578 config DEBUG_TI81XXUART3
579 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
580 depends on ARCH_OMAP2PLUS
581 select DEBUG_OMAP2PLUS_UART
583 config DEBUG_AM33XXUART1
584 bool "Kernel low-level debugging messages via AM33XX UART1"
585 depends on ARCH_OMAP2PLUS
586 select DEBUG_OMAP2PLUS_UART
588 config DEBUG_ZOOM_UART
589 bool "Kernel low-level debugging messages via Zoom2/3 UART"
590 depends on ARCH_OMAP2PLUS
591 select DEBUG_OMAP2PLUS_UART
593 config DEBUG_PICOXCELL_UART
594 depends on ARCH_PICOXCELL
595 bool "Use PicoXcell UART for low-level debug"
596 select DEBUG_UART_8250
598 Say Y here if you want kernel low-level debugging support
599 on PicoXcell based platforms.
601 config DEBUG_PXA_UART1
603 bool "Use PXA UART1 for low-level debug"
604 select DEBUG_UART_8250
606 Say Y here if you want kernel low-level debugging support
609 config DEBUG_REALVIEW_STD_PORT
610 bool "RealView Default UART"
611 depends on ARCH_REALVIEW
612 select DEBUG_UART_PL01X
614 Say Y here if you want the debug print routines to direct
615 their output to the serial port on RealView EB, PB11MP, PBA8
618 config DEBUG_REALVIEW_PB1176_PORT
619 bool "RealView PB1176 UART"
620 depends on MACH_REALVIEW_PB1176
621 select DEBUG_UART_PL01X
623 Say Y here if you want the debug print routines to direct
624 their output to the standard serial port on the RealView
627 config DEBUG_RK29_UART0
628 bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
629 depends on ARCH_ROCKCHIP
630 select DEBUG_UART_8250
632 Say Y here if you want kernel low-level debugging support
633 on Rockchip based platforms.
635 config DEBUG_RK29_UART1
636 bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
637 depends on ARCH_ROCKCHIP
638 select DEBUG_UART_8250
640 Say Y here if you want kernel low-level debugging support
641 on Rockchip based platforms.
643 config DEBUG_RK29_UART2
644 bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
645 depends on ARCH_ROCKCHIP
646 select DEBUG_UART_8250
648 Say Y here if you want kernel low-level debugging support
649 on Rockchip based platforms.
651 config DEBUG_RK3X_UART0
652 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
653 depends on ARCH_ROCKCHIP
654 select DEBUG_UART_8250
656 Say Y here if you want kernel low-level debugging support
657 on Rockchip based platforms.
659 config DEBUG_RK3X_UART1
660 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
661 depends on ARCH_ROCKCHIP
662 select DEBUG_UART_8250
664 Say Y here if you want kernel low-level debugging support
665 on Rockchip based platforms.
667 config DEBUG_RK3X_UART2
668 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
669 depends on ARCH_ROCKCHIP
670 select DEBUG_UART_8250
672 Say Y here if you want kernel low-level debugging support
673 on Rockchip based platforms.
675 config DEBUG_RK3X_UART3
676 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
677 depends on ARCH_ROCKCHIP
678 select DEBUG_UART_8250
680 Say Y here if you want kernel low-level debugging support
681 on Rockchip based platforms.
683 config DEBUG_RK32_UART2
684 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
685 depends on ARCH_ROCKCHIP
686 select DEBUG_UART_8250
688 Say Y here if you want kernel low-level debugging support
689 on Rockchip RK32xx based platforms.
691 config DEBUG_R7S72100_SCIF2
692 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
693 depends on ARCH_R7S72100
695 Say Y here if you want kernel low-level debugging support
696 via SCIF2 on Renesas RZ/A1H (R7S72100).
698 config DEBUG_RCAR_GEN1_SCIF0
699 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
700 depends on ARCH_R8A7778
702 Say Y here if you want kernel low-level debugging support
703 via SCIF0 on Renesas R-Car M1A (R8A7778).
705 config DEBUG_RCAR_GEN1_SCIF2
706 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
707 depends on ARCH_R8A7779
709 Say Y here if you want kernel low-level debugging support
710 via SCIF2 on Renesas R-Car H1 (R8A7779).
712 config DEBUG_RCAR_GEN2_SCIF0
713 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
714 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
716 Say Y here if you want kernel low-level debugging support
717 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
720 config DEBUG_RCAR_GEN2_SCIF2
721 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
722 depends on ARCH_R8A7794
724 Say Y here if you want kernel low-level debugging support
725 via SCIF2 on Renesas R-Car E2 (R8A7794).
727 config DEBUG_RMOBILE_SCIFA0
728 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
729 depends on ARCH_R8A73A4 || ARCH_SH7372
731 Say Y here if you want kernel low-level debugging support
732 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
735 config DEBUG_RMOBILE_SCIFA1
736 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
737 depends on ARCH_R8A7740
739 Say Y here if you want kernel low-level debugging support
740 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
742 config DEBUG_RMOBILE_SCIFA4
743 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
744 depends on ARCH_SH73A0
746 Say Y here if you want kernel low-level debugging support
747 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
749 config DEBUG_S3C_UART0
750 depends on PLAT_SAMSUNG
751 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
752 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
753 select DEBUG_S5PV210_UART if ARCH_S5PV210
754 bool "Use Samsung S3C UART 0 for low-level debug"
756 Say Y here if you want the debug print routines to direct
757 their output to UART 0. The port must have been initialised
758 by the boot-loader before use.
760 config DEBUG_S3C_UART1
761 depends on PLAT_SAMSUNG
762 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
763 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
764 select DEBUG_S5PV210_UART if ARCH_S5PV210
765 bool "Use Samsung S3C UART 1 for low-level debug"
767 Say Y here if you want the debug print routines to direct
768 their output to UART 1. The port must have been initialised
769 by the boot-loader before use.
771 config DEBUG_S3C_UART2
772 depends on PLAT_SAMSUNG
773 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
774 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
775 select DEBUG_S5PV210_UART if ARCH_S5PV210
776 bool "Use Samsung S3C UART 2 for low-level debug"
778 Say Y here if you want the debug print routines to direct
779 their output to UART 2. The port must have been initialised
780 by the boot-loader before use.
782 config DEBUG_S3C_UART3
783 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
784 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
785 select DEBUG_S5PV210_UART if ARCH_S5PV210
786 bool "Use Samsung S3C UART 3 for low-level debug"
788 Say Y here if you want the debug print routines to direct
789 their output to UART 3. The port must have been initialised
790 by the boot-loader before use.
792 config DEBUG_S3C2410_UART0
793 depends on ARCH_S3C24XX
794 select DEBUG_S3C2410_UART
795 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
797 Say Y here if you want the debug print routines to direct
798 their output to UART 0. The port must have been initialised
799 by the boot-loader before use.
801 config DEBUG_S3C2410_UART1
802 depends on ARCH_S3C24XX
803 select DEBUG_S3C2410_UART
804 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
806 Say Y here if you want the debug print routines to direct
807 their output to UART 1. The port must have been initialised
808 by the boot-loader before use.
810 config DEBUG_S3C2410_UART2
811 depends on ARCH_S3C24XX
812 select DEBUG_S3C2410_UART
813 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
815 Say Y here if you want the debug print routines to direct
816 their output to UART 2. The port must have been initialised
817 by the boot-loader before use.
820 depends on ARCH_SA1100
821 bool "Use SA1100 UARTs for low-level debug"
823 Say Y here if you want kernel low-level debugging support
824 on SA-11x0 UART ports. The kernel will check for the first
825 enabled UART in a sequence 3-1-2.
827 config DEBUG_SOCFPGA_UART
828 depends on ARCH_SOCFPGA
829 bool "Use SOCFPGA UART for low-level debug"
830 select DEBUG_UART_8250
832 Say Y here if you want kernel low-level debugging support
833 on SOCFPGA based platforms.
835 config DEBUG_SUN9I_UART0
836 bool "Kernel low-level debugging messages via sun9i UART0"
837 depends on MACH_SUN9I
838 select DEBUG_UART_8250
840 Say Y here if you want kernel low-level debugging support
841 on Allwinner A80 based platforms on the UART0.
843 config DEBUG_SUNXI_UART0
844 bool "Kernel low-level debugging messages via sunXi UART0"
845 depends on ARCH_SUNXI
846 select DEBUG_UART_8250
848 Say Y here if you want kernel low-level debugging support
849 on Allwinner A1X based platforms on the UART0.
851 config DEBUG_SUNXI_UART1
852 bool "Kernel low-level debugging messages via sunXi UART1"
853 depends on ARCH_SUNXI
854 select DEBUG_UART_8250
856 Say Y here if you want kernel low-level debugging support
857 on Allwinner A1X based platforms on the UART1.
859 config DEBUG_SUNXI_R_UART
860 bool "Kernel low-level debugging messages via sunXi R_UART"
861 depends on MACH_SUN6I || MACH_SUN8I
862 select DEBUG_UART_8250
864 Say Y here if you want kernel low-level debugging support
865 on Allwinner A31/A23 based platforms on the R_UART.
867 config TEGRA_DEBUG_UART_AUTO_ODMDATA
868 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
869 depends on ARCH_TEGRA
870 select DEBUG_TEGRA_UART
872 Automatically determines which UART to use for low-level
873 debug based on the ODMDATA value. This value is part of
874 the BCT, and is written to the boot memory device using
875 nvflash, or other flashing tool. When bits 19:18 are 3,
876 then bits 17:15 indicate which UART to use; 0/1/2/3/4
879 config TEGRA_DEBUG_UARTA
880 bool "Kernel low-level debugging messages via Tegra UART A"
881 depends on ARCH_TEGRA
882 select DEBUG_TEGRA_UART
884 Say Y here if you want kernel low-level debugging support
885 on Tegra based platforms.
887 config TEGRA_DEBUG_UARTB
888 bool "Kernel low-level debugging messages via Tegra UART B"
889 depends on ARCH_TEGRA
890 select DEBUG_TEGRA_UART
892 Say Y here if you want kernel low-level debugging support
893 on Tegra based platforms.
895 config TEGRA_DEBUG_UARTC
896 bool "Kernel low-level debugging messages via Tegra UART C"
897 depends on ARCH_TEGRA
898 select DEBUG_TEGRA_UART
900 Say Y here if you want kernel low-level debugging support
901 on Tegra based platforms.
903 config TEGRA_DEBUG_UARTD
904 bool "Kernel low-level debugging messages via Tegra UART D"
905 depends on ARCH_TEGRA
906 select DEBUG_TEGRA_UART
908 Say Y here if you want kernel low-level debugging support
909 on Tegra based platforms.
911 config TEGRA_DEBUG_UARTE
912 bool "Kernel low-level debugging messages via Tegra UART E"
913 depends on ARCH_TEGRA
914 select DEBUG_TEGRA_UART
916 Say Y here if you want kernel low-level debugging support
917 on Tegra based platforms.
919 config DEBUG_SIRFPRIMA2_UART1
920 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
921 depends on ARCH_PRIMA2
923 Say Y here if you want the debug print routines to direct
924 their output to the uart1 port on SiRFprimaII devices.
926 config DEBUG_SIRFMARCO_UART1
927 bool "Kernel low-level debugging messages via SiRFmarco UART1"
928 depends on ARCH_MARCO
930 Say Y here if you want the debug print routines to direct
931 their output to the uart1 port on SiRFmarco devices.
933 config STIH41X_DEBUG_ASC2
934 bool "Use StiH415/416 ASC2 UART for low-level debug"
936 select DEBUG_STI_UART
938 Say Y here if you want kernel low-level debugging support
939 on STiH415/416 based platforms like b2000, which has
940 default UART wired up to ASC2.
944 config STIH41X_DEBUG_SBC_ASC1
945 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
947 select DEBUG_STI_UART
949 Say Y here if you want kernel low-level debugging support
950 on STiH415/416 based platforms like b2020. which has
951 default UART wired up to SBC ASC1.
955 config DEBUG_U300_UART
956 bool "Kernel low-level debugging messages via U300 UART0"
958 select DEBUG_UART_PL01X
960 Say Y here if you want the debug print routines to direct
961 their output to the uart port on U300 devices.
963 config DEBUG_UX500_UART
964 depends on ARCH_U8500
965 bool "Use Ux500 UART for low-level debug"
967 Say Y here if you want kernel low-level debugging support
968 on Ux500 based platforms.
970 config DEBUG_MT6589_UART0
971 bool "Mediatek mt6589 UART0"
972 depends on ARCH_MEDIATEK
973 select DEBUG_UART_8250
975 Say Y here if you want kernel low-level debugging support
976 for Mediatek mt6589 based platforms on UART0.
978 config DEBUG_MT8127_UART0
979 bool "Mediatek mt8127 UART0"
980 depends on ARCH_MEDIATEK
981 select DEBUG_UART_8250
983 Say Y here if you want kernel low-level debugging support
984 for Mediatek mt8127 based platforms on UART0.
986 config DEBUG_MT8135_UART3
987 bool "Mediatek mt8135 UART3"
988 depends on ARCH_MEDIATEK
989 select DEBUG_UART_8250
991 Say Y here if you want kernel low-level debugging support
992 for Mediatek mt8135 based platforms on UART3.
994 config DEBUG_VEXPRESS_UART0_DETECT
995 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
996 depends on ARCH_VEXPRESS && CPU_CP15_MMU
998 This option enables a simple heuristic which tries to determine
999 the motherboard's memory map variant (original or RS1) and then
1000 choose the relevant UART0 base address.
1002 Note that this will only work with standard A-class core tiles,
1003 and may fail with non-standard SMM or custom software models.
1005 config DEBUG_VEXPRESS_UART0_CA9
1006 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1007 depends on ARCH_VEXPRESS
1008 select DEBUG_UART_PL01X
1010 This option selects UART0 at 0x10009000. Except for custom models,
1011 this applies only to the V2P-CA9 tile.
1013 config DEBUG_VEXPRESS_UART0_RS1
1014 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1015 depends on ARCH_VEXPRESS
1016 select DEBUG_UART_PL01X
1018 This option selects UART0 at 0x1c090000. This applies to most
1019 of the tiles using the RS1 memory map, including all new A-class
1020 core tiles, FPGA-based SMMs and software models.
1022 config DEBUG_VEXPRESS_UART0_CRX
1023 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1024 depends on ARCH_VEXPRESS && !MMU
1025 select DEBUG_UART_PL01X
1027 This option selects UART0 at 0xb0090000. This is appropriate for
1028 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1030 config DEBUG_VT8500_UART0
1031 bool "Use UART0 on VIA/Wondermedia SoCs"
1032 depends on ARCH_VT8500
1034 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1035 devices, including VT8500, WM8505, WM8650 and WM8850.
1037 config DEBUG_LL_UART_NONE
1038 bool "No low-level debugging UART"
1039 depends on !ARCH_MULTIPLATFORM
1041 Say Y here if your platform doesn't provide a UART option
1042 above. This relies on your platform choosing the right UART
1043 definition internally in order for low-level debugging to
1047 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1049 Say Y here if you want the debug print routines to direct
1050 their output to the EmbeddedICE macrocell's DCC channel using
1051 co-processor 14. This is known to work on the ARM9 style ICE
1052 channel and on the XScale with the PEEDI.
1054 Note that the system will appear to hang during boot if there
1055 is nothing connected to read from the DCC.
1057 config DEBUG_SEMIHOSTING
1058 bool "Kernel low-level debug output via semihosting I/O"
1060 Semihosting enables code running on an ARM target to use
1061 the I/O facilities on a host debugger/emulator through a
1062 simple SVC call. The host debugger or emulator must have
1063 semihosting enabled for the special svc call to be trapped
1064 otherwise the kernel will crash.
1066 This is known to work with OpenOCD, as well as
1067 ARM's Fast Models, or any other controlling environment
1068 that implements semihosting.
1070 For more details about semihosting, please see
1071 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1073 config DEBUG_LL_UART_8250
1074 bool "Kernel low-level debugging via 8250 UART"
1076 Say Y here if you wish the debug print routes to direct
1077 their output to an 8250 UART. You can use this option
1078 to provide the parameters for the 8250 UART rather than
1079 selecting one of the platform specific options above if
1080 you know the parameters for the port.
1082 This option is preferred over the platform specific
1083 options; the platform specific options are deprecated
1084 and will be soon removed.
1086 config DEBUG_LL_UART_EFM32
1087 bool "Kernel low-level debugging via efm32 UART"
1088 depends on ARCH_EFM32
1090 Say Y here if you want the debug print routines to direct
1091 their output to an UART or USART port on efm32 based
1092 machines. Use the following addresses for DEBUG_UART_PHYS:
1100 config DEBUG_LL_UART_PL01X
1101 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1103 Say Y here if you wish the debug print routes to direct
1104 their output to a PL01x Primecell UART. You can use
1105 this option to provide the parameters for the UART
1106 rather than selecting one of the platform specific
1107 options above if you know the parameters for the port.
1109 This option is preferred over the platform specific
1110 options; the platform specific options are deprecated
1111 and will be soon removed.
1115 config DEBUG_EXYNOS_UART
1118 config DEBUG_S3C2410_UART
1120 select DEBUG_S3C24XX_UART
1122 config DEBUG_S3C24XX_UART
1125 config DEBUG_S5PV210_UART
1128 config DEBUG_OMAP2PLUS_UART
1130 depends on ARCH_OMAP2PLUS
1132 config DEBUG_IMX_UART_PORT
1133 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1134 DEBUG_IMX25_UART || \
1135 DEBUG_IMX21_IMX27_UART || \
1136 DEBUG_IMX31_UART || \
1137 DEBUG_IMX35_UART || \
1138 DEBUG_IMX50_UART || \
1139 DEBUG_IMX51_UART || \
1140 DEBUG_IMX53_UART || \
1141 DEBUG_IMX6Q_UART || \
1142 DEBUG_IMX6SL_UART || \
1147 Choose UART port on which kernel low-level debug messages
1150 config DEBUG_VF_UART_PORT
1151 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1154 depends on SOC_VF610
1156 Choose UART port on which kernel low-level debug messages
1159 config DEBUG_TEGRA_UART
1161 depends on ARCH_TEGRA
1163 config DEBUG_STI_UART
1167 config DEBUG_LL_INCLUDE
1169 default "debug/sa1100.S" if DEBUG_SA1100
1170 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1171 default "debug/at91.S" if AT91_DEBUG_LL_DBGU0 || AT91_DEBUG_LL_DBGU1 || \
1173 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1174 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1175 default "debug/meson.S" if DEBUG_MESON_UARTAO
1176 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1177 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1178 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1179 default "debug/icedcc.S" if DEBUG_ICEDCC
1180 default "debug/imx.S" if DEBUG_IMX1_UART || \
1181 DEBUG_IMX25_UART || \
1182 DEBUG_IMX21_IMX27_UART || \
1183 DEBUG_IMX31_UART || \
1184 DEBUG_IMX35_UART || \
1185 DEBUG_IMX50_UART || \
1186 DEBUG_IMX51_UART || \
1187 DEBUG_IMX53_UART ||\
1188 DEBUG_IMX6Q_UART || \
1189 DEBUG_IMX6SL_UART || \
1191 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1192 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1193 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1194 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1195 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1196 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1197 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1198 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1199 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1200 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1201 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1202 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1203 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1204 default "debug/sti.S" if DEBUG_STI_UART
1205 default "debug/tegra.S" if DEBUG_TEGRA_UART
1206 default "debug/ux500.S" if DEBUG_UX500_UART
1207 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1208 default "debug/vf.S" if DEBUG_VF_UART
1209 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1210 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1211 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1212 default "mach/debug-macro.S"
1214 # Compatibility options for PL01x
1215 config DEBUG_UART_PL01X
1216 def_bool ARCH_EP93XX || \
1217 ARCH_INTEGRATOR || \
1223 # Compatibility options for 8250
1224 config DEBUG_UART_8250
1225 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1226 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1227 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1228 ARCH_IOP33X || ARCH_IXP4XX || \
1229 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1231 # Compatibility options for BCM63xx
1232 config DEBUG_UART_BCM63XX
1233 def_bool ARCH_BCM_63XX
1235 config DEBUG_UART_PHYS
1236 hex "Physical base address of debug UART"
1237 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1238 default 0x01c28000 if DEBUG_SUNXI_UART0
1239 default 0x01c28400 if DEBUG_SUNXI_UART1
1240 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1241 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1242 default 0x01f02800 if DEBUG_SUNXI_R_UART
1243 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1244 default 0x02531000 if DEBUG_KEYSTONE_UART1
1245 default 0x03010fe0 if ARCH_RPC
1246 default 0x07000000 if DEBUG_SUN9I_UART0
1247 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1248 DEBUG_VEXPRESS_UART0_CA9
1249 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1250 default 0x10124000 if DEBUG_RK3X_UART0
1251 default 0x10126000 if DEBUG_RK3X_UART1
1252 default 0x101f1000 if ARCH_VERSATILE
1253 default 0x101fb000 if DEBUG_NOMADIK_UART
1254 default 0x11002000 if DEBUG_MT8127_UART0
1255 default 0x11006000 if DEBUG_MT6589_UART0
1256 default 0x11009000 if DEBUG_MT8135_UART3
1257 default 0x16000000 if ARCH_INTEGRATOR
1258 default 0x18000300 if DEBUG_BCM_5301X
1259 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1260 default 0x20060000 if DEBUG_RK29_UART0
1261 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1262 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1263 default 0x20201000 if DEBUG_BCM2835
1264 default 0x3e000000 if DEBUG_BCM_KONA_UART
1265 default 0x4000e400 if DEBUG_LL_UART_EFM32
1266 default 0x40090000 if ARCH_LPC32XX
1267 default 0x40100000 if DEBUG_PXA_UART1
1268 default 0x42000000 if ARCH_GEMINI
1269 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1270 DEBUG_S3C2410_UART0)
1271 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1272 DEBUG_S3C2410_UART1)
1273 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1274 DEBUG_S3C2410_UART2)
1275 default 0x78000000 if DEBUG_CNS3XXX
1276 default 0x7c0003f8 if FOOTBRIDGE
1277 default 0x78000000 if DEBUG_CNS3XXX
1278 default 0x80010000 if DEBUG_ASM9260_UART
1279 default 0x80070000 if DEBUG_IMX23_UART
1280 default 0x80074000 if DEBUG_IMX28_UART
1281 default 0x80230000 if DEBUG_PICOXCELL_UART
1282 default 0x808c0000 if ARCH_EP93XX
1283 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1284 default 0xa9a00000 if DEBUG_MSM_UART
1285 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1286 default 0xc0013000 if DEBUG_U300_UART
1287 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1288 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1289 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1290 default 0xd0012000 if DEBUG_MVEBU_UART
1291 default 0xc81004c0 if DEBUG_MESON_UARTAO
1292 default 0xd4017000 if DEBUG_MMP_UART2
1293 default 0xd4018000 if DEBUG_MMP_UART3
1294 default 0xe0000000 if ARCH_SPEAR13XX
1295 default 0xe4007000 if DEBUG_HIP04_UART
1296 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1297 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1298 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1299 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1300 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1301 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1302 default 0xf0000be0 if ARCH_EBSA110
1303 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1304 default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1305 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1307 default 0xf7fc9000 if DEBUG_BERLIN_UART
1308 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1309 default 0xf991e000 if DEBUG_QCOM_UARTDM
1310 default 0xfcb00000 if DEBUG_HI3620_UART
1311 default 0xfe800000 if ARCH_IOP32X
1312 default 0xff690000 if DEBUG_RK32_UART2
1313 default 0xffc02000 if DEBUG_SOCFPGA_UART
1314 default 0xffd82340 if ARCH_IOP13XX
1315 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1316 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1317 default 0xfff36000 if DEBUG_HIGHBANK_UART
1318 default 0xfffe8600 if DEBUG_UART_BCM63XX
1319 default 0xfffff700 if ARCH_IOP33X
1320 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1321 DEBUG_LL_UART_EFM32 || \
1322 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1323 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1324 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1325 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1326 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1327 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1328 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1330 config DEBUG_UART_VIRT
1331 hex "Virtual base address of debug UART"
1332 default 0xe0010fe0 if ARCH_RPC
1333 default 0xe1000000 if DEBUG_MSM_UART
1334 default 0xf0000be0 if ARCH_EBSA110
1335 default 0xf0010000 if DEBUG_ASM9260_UART
1336 default 0xf01fb000 if DEBUG_NOMADIK_UART
1337 default 0xf0201000 if DEBUG_BCM2835
1338 default 0xf1000300 if DEBUG_BCM_5301X
1339 default 0xf1002000 if DEBUG_MT8127_UART0
1340 default 0xf1006000 if DEBUG_MT6589_UART0
1341 default 0xf1009000 if DEBUG_MT8135_UART3
1342 default 0xf11f1000 if ARCH_VERSATILE
1343 default 0xf1600000 if ARCH_INTEGRATOR
1344 default 0xf1c28000 if DEBUG_SUNXI_UART0
1345 default 0xf1c28400 if DEBUG_SUNXI_UART1
1346 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1347 default 0xf6200000 if DEBUG_PXA_UART1
1348 default 0xf4090000 if ARCH_LPC32XX
1349 default 0xf4200000 if ARCH_GEMINI
1350 default 0xf7000000 if DEBUG_SUN9I_UART0
1351 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1352 DEBUG_S3C2410_UART0)
1353 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1354 DEBUG_S3C2410_UART1)
1355 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1356 DEBUG_S3C2410_UART2)
1357 default 0xf7fc9000 if DEBUG_BERLIN_UART
1358 default 0xf8007000 if DEBUG_HIP04_UART
1359 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1360 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1361 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1362 default 0xfb002000 if DEBUG_CNS3XXX
1363 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1364 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1365 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1366 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1367 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1368 default 0xfd000000 if ARCH_SPEAR13XX
1369 default 0xfd012000 if ARCH_MV78XX0
1370 default 0xfde12000 if ARCH_DOVE
1371 default 0xfe012000 if ARCH_ORION5X
1372 default 0xf31004c0 if DEBUG_MESON_UARTAO
1373 default 0xfe017000 if DEBUG_MMP_UART2
1374 default 0xfe018000 if DEBUG_MMP_UART3
1375 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1376 default 0xfe230000 if DEBUG_PICOXCELL_UART
1377 default 0xfe300000 if DEBUG_BCM_KONA_UART
1378 default 0xfe800000 if ARCH_IOP32X
1379 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1380 default 0xfeb24000 if DEBUG_RK3X_UART0
1381 default 0xfeb26000 if DEBUG_RK3X_UART1
1382 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1383 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1384 default 0xfec02000 if DEBUG_SOCFPGA_UART
1385 default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1386 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1387 default 0xfec90000 if DEBUG_RK32_UART2
1388 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1389 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1390 default 0xfed60000 if DEBUG_RK29_UART0
1391 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1392 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1393 default 0xfedc0000 if ARCH_EP93XX
1394 default 0xfee003f8 if FOOTBRIDGE
1395 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1396 default 0xfee82340 if ARCH_IOP13XX
1397 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1398 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1399 default 0xfef36000 if DEBUG_HIGHBANK_UART
1400 default 0xfefff700 if ARCH_IOP33X
1401 default 0xff003000 if DEBUG_U300_UART
1402 default DEBUG_UART_PHYS if !MMU
1403 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1404 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1405 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1406 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
1408 config DEBUG_UART_8250_SHIFT
1409 int "Register offset shift for the 8250 debug UART"
1410 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1411 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1414 config DEBUG_UART_8250_WORD
1415 bool "Use 32-bit accesses for 8250 UART"
1416 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1417 depends on DEBUG_UART_8250_SHIFT >= 2
1418 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1420 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1421 DEBUG_DAVINCI_DA8XX_UART2 || \
1422 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1425 config DEBUG_UART_8250_FLOW_CONTROL
1426 bool "Enable flow control for 8250 UART"
1427 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1428 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1430 config DEBUG_UNCOMPRESS
1432 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1433 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1434 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1436 This option influences the normal decompressor output for
1437 multiplatform kernels. Normally, multiplatform kernels disable
1438 decompressor output because it is not possible to know where to
1439 send the decompressor output.
1441 When this option is set, the selected DEBUG_LL output method
1442 will be re-used for normal decompressor output on multiplatform
1446 config UNCOMPRESS_INCLUDE
1448 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1449 PLAT_SAMSUNG || ARCH_EFM32
1450 default "mach/uncompress.h"
1456 Say Y here if you want to have an early console using the
1457 kernel low-level debugging functions. Add earlyprintk to your
1458 kernel parameters to enable this console.
1460 config ARM_KPROBES_TEST
1461 tristate "Kprobes test module"
1462 depends on KPROBES && MODULES
1464 Perform tests of kprobes API and instruction set simulation.
1466 config PID_IN_CONTEXTIDR
1467 bool "Write the current PID to the CONTEXTIDR register"
1468 depends on CPU_COPY_V6
1470 Enabling this option causes the kernel to write the current PID to
1471 the PROCID field of the CONTEXTIDR register, at the expense of some
1472 additional instructions during context switch. Say Y here only if you
1473 are planning to use hardware trace tools with this kernel.
1475 config DEBUG_SET_MODULE_RONX
1476 bool "Set loadable kernel module data as NX and text as RO"
1479 This option helps catch unintended modifications to loadable
1480 kernel module's text and read-only data. It also prevents execution
1481 of module data. Such protection may interfere with run-time code
1482 patching and dynamic kernel tracing - and they might also protect
1483 against certain classes of kernel exploits.
1484 If in doubt, say "N".
1486 menuconfig CORESIGHT
1487 bool "CoreSight Tracing Support"
1490 This framework provides a kernel interface for the CoreSight debug
1491 and trace drivers to register themselves with. It's intended to build
1492 a topological view of the CoreSight components based on a DT
1493 specification and configure the right serie of components when a
1494 trace source gets enabled.
1497 config CORESIGHT_LINKS_AND_SINKS
1498 bool "CoreSight Link and Sink drivers"
1500 This enables support for CoreSight link and sink drivers that are
1501 responsible for transporting and collecting the trace data
1502 respectively. Link and sinks are dynamically aggregated with a trace
1503 entity at run time to form a complete trace path.
1505 config CORESIGHT_LINK_AND_SINK_TMC
1506 bool "Coresight generic TMC driver"
1507 depends on CORESIGHT_LINKS_AND_SINKS
1509 This enables support for the Trace Memory Controller driver. Depending
1510 on its configuration the device can act as a link (embedded trace router
1511 - ETR) or sink (embedded trace FIFO). The driver complies with the
1512 generic implementation of the component without special enhancement or
1515 config CORESIGHT_SINK_TPIU
1516 bool "Coresight generic TPIU driver"
1517 depends on CORESIGHT_LINKS_AND_SINKS
1519 This enables support for the Trace Port Interface Unit driver, responsible
1520 for bridging the gap between the on-chip coresight components and a trace
1521 port collection engine, typically connected to an external host for use
1522 case capturing more traces than the on-board coresight memory can handle.
1524 config CORESIGHT_SINK_ETBV10
1525 bool "Coresight ETBv1.0 driver"
1526 depends on CORESIGHT_LINKS_AND_SINKS
1528 This enables support for the Embedded Trace Buffer version 1.0 driver
1529 that complies with the generic implementation of the component without
1530 special enhancement or added features.
1532 config CORESIGHT_SOURCE_ETM3X
1533 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1534 select CORESIGHT_LINKS_AND_SINKS
1536 This driver provides support for processor ETM3.x and PTM1.x modules,
1537 which allows tracing the instructions that a processor is executing
1538 This is primarily useful for instruction level tracing. Depending
1539 the ETM version data tracing may also be available.