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_HIP01_UART
279 bool "Hisilicon Hip01 Debug UART"
280 depends on ARCH_HIP01
281 select DEBUG_UART_8250
283 Say Y here if you want kernel low-level debugging support
286 config DEBUG_HIP04_UART
287 bool "Hisilicon HiP04 Debug UART"
288 depends on ARCH_HIP04
289 select DEBUG_UART_8250
291 Say Y here if you want kernel low-level debugging support
294 config DEBUG_HIX5HD2_UART
295 bool "Hisilicon Hix5hd2 Debug UART"
296 depends on ARCH_HIX5HD2
297 select DEBUG_UART_PL01X
299 Say Y here if you want kernel low-level debugging support
302 config DEBUG_IMX1_UART
303 bool "i.MX1 Debug UART"
306 Say Y here if you want kernel low-level debugging support
309 config DEBUG_IMX23_UART
310 bool "i.MX23 Debug UART"
312 select DEBUG_UART_PL01X
314 Say Y here if you want kernel low-level debugging support
317 config DEBUG_IMX25_UART
318 bool "i.MX25 Debug UART"
321 Say Y here if you want kernel low-level debugging support
324 config DEBUG_IMX21_IMX27_UART
325 bool "i.MX21 and i.MX27 Debug UART"
326 depends on SOC_IMX21 || SOC_IMX27
328 Say Y here if you want kernel low-level debugging support
331 config DEBUG_IMX28_UART
332 bool "i.MX28 Debug UART"
334 select DEBUG_UART_PL01X
336 Say Y here if you want kernel low-level debugging support
339 config DEBUG_IMX31_UART
340 bool "i.MX31 Debug UART"
343 Say Y here if you want kernel low-level debugging support
346 config DEBUG_IMX35_UART
347 bool "i.MX35 Debug UART"
350 Say Y here if you want kernel low-level debugging support
353 config DEBUG_IMX50_UART
354 bool "i.MX50 Debug UART"
357 Say Y here if you want kernel low-level debugging support
360 config DEBUG_IMX51_UART
361 bool "i.MX51 Debug UART"
364 Say Y here if you want kernel low-level debugging support
367 config DEBUG_IMX53_UART
368 bool "i.MX53 Debug UART"
371 Say Y here if you want kernel low-level debugging support
374 config DEBUG_IMX6Q_UART
375 bool "i.MX6Q/DL Debug UART"
378 Say Y here if you want kernel low-level debugging support
381 config DEBUG_IMX6SL_UART
382 bool "i.MX6SL Debug UART"
383 depends on SOC_IMX6SL
385 Say Y here if you want kernel low-level debugging support
388 config DEBUG_IMX6SX_UART
389 bool "i.MX6SX Debug UART"
390 depends on SOC_IMX6SX
392 Say Y here if you want kernel low-level debugging support
395 config DEBUG_KEYSTONE_UART0
396 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
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 UART0 serial port on KEYSTONE2 devices.
403 config DEBUG_KEYSTONE_UART1
404 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
405 depends on ARCH_KEYSTONE
406 select DEBUG_UART_8250
408 Say Y here if you want the debug print routines to direct
409 their output to UART1 serial port on KEYSTONE2 devices.
411 config DEBUG_MESON_UARTAO
412 bool "Kernel low-level debugging via Meson6 UARTAO"
413 depends on ARCH_MESON
415 Say Y here if you want kernel low-lever debugging support
416 on Amlogic Meson6 based platforms on the UARTAO.
418 config DEBUG_MMP_UART2
419 bool "Kernel low-level debugging message via MMP UART2"
421 select DEBUG_UART_8250
423 Say Y here if you want kernel low-level debugging support
426 config DEBUG_MMP_UART3
427 bool "Kernel low-level debugging message via MMP UART3"
429 select DEBUG_UART_8250
431 Say Y here if you want kernel low-level debugging support
434 config DEBUG_MSM_UART
435 bool "Kernel low-level debugging messages via MSM UART"
438 Say Y here if you want the debug print routines to direct
439 their output to the serial port on MSM devices.
441 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT #
442 MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1
443 MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2
444 MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3
446 MSM7X30 0xaca00000 0xe1000000 UART1
447 MSM7X30 0xacb00000 0xe1000000 UART2
448 MSM7X30 0xacc00000 0xe1000000 UART3
450 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
451 options based on your needs.
453 config DEBUG_QCOM_UARTDM
454 bool "Kernel low-level debugging messages via QCOM UARTDM"
457 Say Y here if you want the debug print routines to direct
458 their output to the serial port on Qualcomm devices.
460 ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
461 APQ8064 0x16640000 0xf0040000
462 APQ8084 0xf995e000 0xfa75e000
463 MSM8X60 0x19c40000 0xf0040000
464 MSM8960 0x16440000 0xf0040000
465 MSM8974 0xf991e000 0xfa71e000
467 Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
468 options based on your needs.
470 config DEBUG_MVEBU_UART0
471 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
472 depends on ARCH_MVEBU
473 select DEBUG_UART_8250
475 Say Y here if you want kernel low-level debugging support
476 on MVEBU based platforms on UART0.
478 This option should be used with the old bootloaders
479 that left the internal registers mapped at
480 0xd0000000. As of today, this is the case on
481 platforms such as the Globalscale Mirabox or the
482 Plathome OpenBlocks AX3, when using the original
485 If the wrong DEBUG_MVEBU_UART* option is selected,
486 when u-boot hands over to the kernel, the system
487 silently crashes, with no serial output at all.
489 config DEBUG_MVEBU_UART0_ALTERNATE
490 bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
491 depends on ARCH_MVEBU
492 select DEBUG_UART_8250
494 Say Y here if you want kernel low-level debugging support
495 on MVEBU based platforms on UART0.
497 This option should be used with the new bootloaders
498 that remap the internal registers at 0xf1000000.
500 If the wrong DEBUG_MVEBU_UART* option is selected,
501 when u-boot hands over to the kernel, the system
502 silently crashes, with no serial output at all.
504 config DEBUG_MVEBU_UART1_ALTERNATE
505 bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
506 depends on ARCH_MVEBU
507 select DEBUG_UART_8250
509 Say Y here if you want kernel low-level debugging support
510 on MVEBU based platforms on UART1.
512 This option should be used with the new bootloaders
513 that remap the internal registers at 0xf1000000.
515 If the wrong DEBUG_MVEBU_UART* option is selected,
516 when u-boot hands over to the kernel, the system
517 silently crashes, with no serial output at all.
523 Say Y here if you want kernel low-level debugging support
524 on Vybrid based platforms.
526 config DEBUG_NOMADIK_UART
527 bool "Kernel low-level debugging messages via NOMADIK UART"
528 depends on ARCH_NOMADIK
529 select DEBUG_UART_PL01X
531 Say Y here if you want kernel low-level debugging support
532 on NOMADIK based platforms.
534 config DEBUG_NSPIRE_CLASSIC_UART
535 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
536 depends on ARCH_NSPIRE
537 select DEBUG_UART_8250
539 Say Y here if you want kernel low-level debugging support
540 on TI-NSPIRE classic models.
542 config DEBUG_NSPIRE_CX_UART
543 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
544 depends on ARCH_NSPIRE
545 select DEBUG_UART_PL01X
547 Say Y here if you want kernel low-level debugging support
548 on TI-NSPIRE CX models.
550 config DEBUG_OMAP2UART1
551 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
552 depends on ARCH_OMAP2PLUS
553 select DEBUG_OMAP2PLUS_UART
555 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
556 omap3 torpedo and 3530 lv som.
558 config DEBUG_OMAP2UART2
559 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
560 depends on ARCH_OMAP2PLUS
561 select DEBUG_OMAP2PLUS_UART
563 config DEBUG_OMAP2UART3
564 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
565 depends on ARCH_OMAP2PLUS
566 select DEBUG_OMAP2PLUS_UART
568 config DEBUG_OMAP3UART3
569 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
570 depends on ARCH_OMAP2PLUS
571 select DEBUG_OMAP2PLUS_UART
573 This covers at least cm_t3x, beagle, crane, devkit8000,
574 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
577 config DEBUG_OMAP4UART3
578 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
579 depends on ARCH_OMAP2PLUS
580 select DEBUG_OMAP2PLUS_UART
582 config DEBUG_OMAP3UART4
583 bool "Kernel low-level debugging messages via OMAP36XX UART4"
584 depends on ARCH_OMAP2PLUS
585 select DEBUG_OMAP2PLUS_UART
587 config DEBUG_OMAP4UART4
588 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
589 depends on ARCH_OMAP2PLUS
590 select DEBUG_OMAP2PLUS_UART
592 config DEBUG_TI81XXUART1
593 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
594 depends on ARCH_OMAP2PLUS
595 select DEBUG_OMAP2PLUS_UART
597 config DEBUG_TI81XXUART2
598 bool "Kernel low-level debugging messages via TI81XX UART2"
599 depends on ARCH_OMAP2PLUS
600 select DEBUG_OMAP2PLUS_UART
602 config DEBUG_TI81XXUART3
603 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
604 depends on ARCH_OMAP2PLUS
605 select DEBUG_OMAP2PLUS_UART
607 config DEBUG_AM33XXUART1
608 bool "Kernel low-level debugging messages via AM33XX UART1"
609 depends on ARCH_OMAP2PLUS
610 select DEBUG_OMAP2PLUS_UART
612 config DEBUG_ZOOM_UART
613 bool "Kernel low-level debugging messages via Zoom2/3 UART"
614 depends on ARCH_OMAP2PLUS
615 select DEBUG_OMAP2PLUS_UART
617 config DEBUG_PICOXCELL_UART
618 depends on ARCH_PICOXCELL
619 bool "Use PicoXcell UART for low-level debug"
620 select DEBUG_UART_8250
622 Say Y here if you want kernel low-level debugging support
623 on PicoXcell based platforms.
625 config DEBUG_PXA_UART1
627 bool "Use PXA UART1 for low-level debug"
628 select DEBUG_UART_8250
630 Say Y here if you want kernel low-level debugging support
633 config DEBUG_REALVIEW_STD_PORT
634 bool "RealView Default UART"
635 depends on ARCH_REALVIEW
636 select DEBUG_UART_PL01X
638 Say Y here if you want the debug print routines to direct
639 their output to the serial port on RealView EB, PB11MP, PBA8
642 config DEBUG_REALVIEW_PB1176_PORT
643 bool "RealView PB1176 UART"
644 depends on MACH_REALVIEW_PB1176
645 select DEBUG_UART_PL01X
647 Say Y here if you want the debug print routines to direct
648 their output to the standard serial port on the RealView
651 config DEBUG_RK29_UART0
652 bool "Kernel low-level debugging messages via Rockchip RK29 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_RK29_UART1
660 bool "Kernel low-level debugging messages via Rockchip RK29 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_RK29_UART2
668 bool "Kernel low-level debugging messages via Rockchip RK29 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_UART0
676 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
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_RK3X_UART1
684 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
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 based platforms.
691 config DEBUG_RK3X_UART2
692 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
693 depends on ARCH_ROCKCHIP
694 select DEBUG_UART_8250
696 Say Y here if you want kernel low-level debugging support
697 on Rockchip based platforms.
699 config DEBUG_RK3X_UART3
700 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
701 depends on ARCH_ROCKCHIP
702 select DEBUG_UART_8250
704 Say Y here if you want kernel low-level debugging support
705 on Rockchip based platforms.
707 config DEBUG_RK32_UART2
708 bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
709 depends on ARCH_ROCKCHIP
710 select DEBUG_UART_8250
712 Say Y here if you want kernel low-level debugging support
713 on Rockchip RK32xx based platforms.
715 config DEBUG_R7S72100_SCIF2
716 bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
717 depends on ARCH_R7S72100
719 Say Y here if you want kernel low-level debugging support
720 via SCIF2 on Renesas RZ/A1H (R7S72100).
722 config DEBUG_RCAR_GEN1_SCIF0
723 bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
724 depends on ARCH_R8A7778
726 Say Y here if you want kernel low-level debugging support
727 via SCIF0 on Renesas R-Car M1A (R8A7778).
729 config DEBUG_RCAR_GEN1_SCIF2
730 bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
731 depends on ARCH_R8A7779
733 Say Y here if you want kernel low-level debugging support
734 via SCIF2 on Renesas R-Car H1 (R8A7779).
736 config DEBUG_RCAR_GEN2_SCIF0
737 bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793)"
738 depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793
740 Say Y here if you want kernel low-level debugging support
741 via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or
744 config DEBUG_RCAR_GEN2_SCIF2
745 bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
746 depends on ARCH_R8A7794
748 Say Y here if you want kernel low-level debugging support
749 via SCIF2 on Renesas R-Car E2 (R8A7794).
751 config DEBUG_RMOBILE_SCIFA0
752 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372"
753 depends on ARCH_R8A73A4 || ARCH_SH7372
755 Say Y here if you want kernel low-level debugging support
756 via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile
759 config DEBUG_RMOBILE_SCIFA1
760 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
761 depends on ARCH_R8A7740
763 Say Y here if you want kernel low-level debugging support
764 via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
766 config DEBUG_RMOBILE_SCIFA4
767 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
768 depends on ARCH_SH73A0
770 Say Y here if you want kernel low-level debugging support
771 via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
773 config DEBUG_S3C_UART0
774 depends on PLAT_SAMSUNG
775 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
776 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
777 select DEBUG_S5PV210_UART if ARCH_S5PV210
778 bool "Use Samsung S3C UART 0 for low-level debug"
780 Say Y here if you want the debug print routines to direct
781 their output to UART 0. The port must have been initialised
782 by the boot-loader before use.
784 config DEBUG_S3C_UART1
785 depends on PLAT_SAMSUNG
786 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
787 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
788 select DEBUG_S5PV210_UART if ARCH_S5PV210
789 bool "Use Samsung S3C UART 1 for low-level debug"
791 Say Y here if you want the debug print routines to direct
792 their output to UART 1. The port must have been initialised
793 by the boot-loader before use.
795 config DEBUG_S3C_UART2
796 depends on PLAT_SAMSUNG
797 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
798 select DEBUG_S3C24XX_UART if ARCH_S3C24XX
799 select DEBUG_S5PV210_UART if ARCH_S5PV210
800 bool "Use Samsung S3C UART 2 for low-level debug"
802 Say Y here if you want the debug print routines to direct
803 their output to UART 2. The port must have been initialised
804 by the boot-loader before use.
806 config DEBUG_S3C_UART3
807 depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
808 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
809 select DEBUG_S5PV210_UART if ARCH_S5PV210
810 bool "Use Samsung S3C UART 3 for low-level debug"
812 Say Y here if you want the debug print routines to direct
813 their output to UART 3. The port must have been initialised
814 by the boot-loader before use.
816 config DEBUG_S3C2410_UART0
817 depends on ARCH_S3C24XX
818 select DEBUG_S3C2410_UART
819 bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
821 Say Y here if you want the debug print routines to direct
822 their output to UART 0. The port must have been initialised
823 by the boot-loader before use.
825 config DEBUG_S3C2410_UART1
826 depends on ARCH_S3C24XX
827 select DEBUG_S3C2410_UART
828 bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
830 Say Y here if you want the debug print routines to direct
831 their output to UART 1. The port must have been initialised
832 by the boot-loader before use.
834 config DEBUG_S3C2410_UART2
835 depends on ARCH_S3C24XX
836 select DEBUG_S3C2410_UART
837 bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
839 Say Y here if you want the debug print routines to direct
840 their output to UART 2. The port must have been initialised
841 by the boot-loader before use.
844 depends on ARCH_SA1100
845 bool "Use SA1100 UARTs for low-level debug"
847 Say Y here if you want kernel low-level debugging support
848 on SA-11x0 UART ports. The kernel will check for the first
849 enabled UART in a sequence 3-1-2.
851 config DEBUG_SOCFPGA_UART
852 depends on ARCH_SOCFPGA
853 bool "Use SOCFPGA UART for low-level debug"
854 select DEBUG_UART_8250
856 Say Y here if you want kernel low-level debugging support
857 on SOCFPGA based platforms.
859 config DEBUG_SUN9I_UART0
860 bool "Kernel low-level debugging messages via sun9i UART0"
861 depends on MACH_SUN9I
862 select DEBUG_UART_8250
864 Say Y here if you want kernel low-level debugging support
865 on Allwinner A80 based platforms on the UART0.
867 config DEBUG_SUNXI_UART0
868 bool "Kernel low-level debugging messages via sunXi UART0"
869 depends on ARCH_SUNXI
870 select DEBUG_UART_8250
872 Say Y here if you want kernel low-level debugging support
873 on Allwinner A1X based platforms on the UART0.
875 config DEBUG_SUNXI_UART1
876 bool "Kernel low-level debugging messages via sunXi UART1"
877 depends on ARCH_SUNXI
878 select DEBUG_UART_8250
880 Say Y here if you want kernel low-level debugging support
881 on Allwinner A1X based platforms on the UART1.
883 config DEBUG_SUNXI_R_UART
884 bool "Kernel low-level debugging messages via sunXi R_UART"
885 depends on MACH_SUN6I || MACH_SUN8I
886 select DEBUG_UART_8250
888 Say Y here if you want kernel low-level debugging support
889 on Allwinner A31/A23 based platforms on the R_UART.
891 config TEGRA_DEBUG_UART_AUTO_ODMDATA
892 bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
893 depends on ARCH_TEGRA
894 select DEBUG_TEGRA_UART
896 Automatically determines which UART to use for low-level
897 debug based on the ODMDATA value. This value is part of
898 the BCT, and is written to the boot memory device using
899 nvflash, or other flashing tool. When bits 19:18 are 3,
900 then bits 17:15 indicate which UART to use; 0/1/2/3/4
903 config TEGRA_DEBUG_UARTA
904 bool "Kernel low-level debugging messages via Tegra UART A"
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_UARTB
912 bool "Kernel low-level debugging messages via Tegra UART B"
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 TEGRA_DEBUG_UARTC
920 bool "Kernel low-level debugging messages via Tegra UART C"
921 depends on ARCH_TEGRA
922 select DEBUG_TEGRA_UART
924 Say Y here if you want kernel low-level debugging support
925 on Tegra based platforms.
927 config TEGRA_DEBUG_UARTD
928 bool "Kernel low-level debugging messages via Tegra UART D"
929 depends on ARCH_TEGRA
930 select DEBUG_TEGRA_UART
932 Say Y here if you want kernel low-level debugging support
933 on Tegra based platforms.
935 config TEGRA_DEBUG_UARTE
936 bool "Kernel low-level debugging messages via Tegra UART E"
937 depends on ARCH_TEGRA
938 select DEBUG_TEGRA_UART
940 Say Y here if you want kernel low-level debugging support
941 on Tegra based platforms.
943 config DEBUG_SIRFPRIMA2_UART1
944 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
945 depends on ARCH_PRIMA2
946 select DEBUG_SIRFSOC_UART
948 Say Y here if you want the debug print routines to direct
949 their output to the uart1 port on SiRFprimaII devices.
951 config DEBUG_SIRFATLAS7_UART0
952 bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
953 depends on ARCH_ATLAS7
954 select DEBUG_SIRFSOC_UART
956 Say Y here if you want the debug print routines to direct
957 their output to the uart0 port on SiRFATLAS7 devices.The uart0
958 is used on SiRFATLAS7 as a extra debug port.sometimes an extra
959 debug port can be very useful.
961 config DEBUG_SIRFATLAS7_UART1
962 bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
963 depends on ARCH_ATLAS7
964 select DEBUG_SIRFSOC_UART
966 Say Y here if you want the debug print routines to direct
967 their output to the uart1 port on SiRFATLAS7 devices.
969 config STIH41X_DEBUG_ASC2
970 bool "Use StiH415/416 ASC2 UART for low-level debug"
972 select DEBUG_STI_UART
974 Say Y here if you want kernel low-level debugging support
975 on STiH415/416 based platforms like b2000, which has
976 default UART wired up to ASC2.
980 config STIH41X_DEBUG_SBC_ASC1
981 bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
983 select DEBUG_STI_UART
985 Say Y here if you want kernel low-level debugging support
986 on STiH415/416 based platforms like b2020. which has
987 default UART wired up to SBC ASC1.
991 config DEBUG_U300_UART
992 bool "Kernel low-level debugging messages via U300 UART0"
994 select DEBUG_UART_PL01X
996 Say Y here if you want the debug print routines to direct
997 their output to the uart port on U300 devices.
999 config DEBUG_UX500_UART
1000 depends on ARCH_U8500
1001 bool "Use Ux500 UART for low-level debug"
1003 Say Y here if you want kernel low-level debugging support
1004 on Ux500 based platforms.
1006 config DEBUG_MT6589_UART0
1007 bool "Mediatek mt6589 UART0"
1008 depends on ARCH_MEDIATEK
1009 select DEBUG_UART_8250
1011 Say Y here if you want kernel low-level debugging support
1012 for Mediatek mt6589 based platforms on UART0.
1014 config DEBUG_MT8127_UART0
1015 bool "Mediatek mt8127/mt6592 UART0"
1016 depends on ARCH_MEDIATEK
1017 select DEBUG_UART_8250
1019 Say Y here if you want kernel low-level debugging support
1020 for Mediatek mt8127 based platforms on UART0.
1022 config DEBUG_MT8135_UART3
1023 bool "Mediatek mt8135 UART3"
1024 depends on ARCH_MEDIATEK
1025 select DEBUG_UART_8250
1027 Say Y here if you want kernel low-level debugging support
1028 for Mediatek mt8135 based platforms on UART3.
1030 config DEBUG_VEXPRESS_UART0_DETECT
1031 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1032 depends on ARCH_VEXPRESS && CPU_CP15_MMU
1034 This option enables a simple heuristic which tries to determine
1035 the motherboard's memory map variant (original or RS1) and then
1036 choose the relevant UART0 base address.
1038 Note that this will only work with standard A-class core tiles,
1039 and may fail with non-standard SMM or custom software models.
1041 config DEBUG_VEXPRESS_UART0_CA9
1042 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1043 depends on ARCH_VEXPRESS
1044 select DEBUG_UART_PL01X
1046 This option selects UART0 at 0x10009000. Except for custom models,
1047 this applies only to the V2P-CA9 tile.
1049 config DEBUG_VEXPRESS_UART0_RS1
1050 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
1051 depends on ARCH_VEXPRESS
1052 select DEBUG_UART_PL01X
1054 This option selects UART0 at 0x1c090000. This applies to most
1055 of the tiles using the RS1 memory map, including all new A-class
1056 core tiles, FPGA-based SMMs and software models.
1058 config DEBUG_VEXPRESS_UART0_CRX
1059 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1060 depends on ARCH_VEXPRESS && !MMU
1061 select DEBUG_UART_PL01X
1063 This option selects UART0 at 0xb0090000. This is appropriate for
1064 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1066 config DEBUG_VT8500_UART0
1067 bool "Use UART0 on VIA/Wondermedia SoCs"
1068 depends on ARCH_VT8500
1070 This option selects UART0 on VIA/Wondermedia System-on-a-chip
1071 devices, including VT8500, WM8505, WM8650 and WM8850.
1073 config DEBUG_LL_UART_NONE
1074 bool "No low-level debugging UART"
1075 depends on !ARCH_MULTIPLATFORM
1077 Say Y here if your platform doesn't provide a UART option
1078 above. This relies on your platform choosing the right UART
1079 definition internally in order for low-level debugging to
1083 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1085 Say Y here if you want the debug print routines to direct
1086 their output to the EmbeddedICE macrocell's DCC channel using
1087 co-processor 14. This is known to work on the ARM9 style ICE
1088 channel and on the XScale with the PEEDI.
1090 Note that the system will appear to hang during boot if there
1091 is nothing connected to read from the DCC.
1093 config DEBUG_SEMIHOSTING
1094 bool "Kernel low-level debug output via semihosting I/O"
1096 Semihosting enables code running on an ARM target to use
1097 the I/O facilities on a host debugger/emulator through a
1098 simple SVC call. The host debugger or emulator must have
1099 semihosting enabled for the special svc call to be trapped
1100 otherwise the kernel will crash.
1102 This is known to work with OpenOCD, as well as
1103 ARM's Fast Models, or any other controlling environment
1104 that implements semihosting.
1106 For more details about semihosting, please see
1107 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
1109 config DEBUG_LL_UART_8250
1110 bool "Kernel low-level debugging via 8250 UART"
1112 Say Y here if you wish the debug print routes to direct
1113 their output to an 8250 UART. You can use this option
1114 to provide the parameters for the 8250 UART rather than
1115 selecting one of the platform specific options above if
1116 you know the parameters for the port.
1118 This option is preferred over the platform specific
1119 options; the platform specific options are deprecated
1120 and will be soon removed.
1122 config DEBUG_LL_UART_EFM32
1123 bool "Kernel low-level debugging via efm32 UART"
1124 depends on ARCH_EFM32
1126 Say Y here if you want the debug print routines to direct
1127 their output to an UART or USART port on efm32 based
1128 machines. Use the following addresses for DEBUG_UART_PHYS:
1136 config DEBUG_LL_UART_PL01X
1137 bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1139 Say Y here if you wish the debug print routes to direct
1140 their output to a PL01x Primecell UART. You can use
1141 this option to provide the parameters for the UART
1142 rather than selecting one of the platform specific
1143 options above if you know the parameters for the port.
1145 This option is preferred over the platform specific
1146 options; the platform specific options are deprecated
1147 and will be soon removed.
1151 config DEBUG_EXYNOS_UART
1154 config DEBUG_S3C2410_UART
1156 select DEBUG_S3C24XX_UART
1158 config DEBUG_S3C24XX_UART
1161 config DEBUG_S5PV210_UART
1164 config DEBUG_OMAP2PLUS_UART
1166 depends on ARCH_OMAP2PLUS
1168 config DEBUG_IMX_UART_PORT
1169 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
1170 DEBUG_IMX25_UART || \
1171 DEBUG_IMX21_IMX27_UART || \
1172 DEBUG_IMX31_UART || \
1173 DEBUG_IMX35_UART || \
1174 DEBUG_IMX50_UART || \
1175 DEBUG_IMX51_UART || \
1176 DEBUG_IMX53_UART || \
1177 DEBUG_IMX6Q_UART || \
1178 DEBUG_IMX6SL_UART || \
1183 Choose UART port on which kernel low-level debug messages
1186 config DEBUG_VF_UART_PORT
1187 int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
1190 depends on SOC_VF610
1192 Choose UART port on which kernel low-level debug messages
1195 config DEBUG_TEGRA_UART
1197 depends on ARCH_TEGRA
1199 config DEBUG_STI_UART
1203 config DEBUG_SIRFSOC_UART
1205 depends on ARCH_SIRF
1207 config DEBUG_LL_INCLUDE
1209 default "debug/sa1100.S" if DEBUG_SA1100
1210 default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1211 default "debug/at91.S" if AT91_DEBUG_LL_DBGU0 || AT91_DEBUG_LL_DBGU1 || \
1213 default "debug/asm9260.S" if DEBUG_ASM9260_UART
1214 default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1215 default "debug/meson.S" if DEBUG_MESON_UARTAO
1216 default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1217 default "debug/exynos.S" if DEBUG_EXYNOS_UART
1218 default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1219 default "debug/icedcc.S" if DEBUG_ICEDCC
1220 default "debug/imx.S" if DEBUG_IMX1_UART || \
1221 DEBUG_IMX25_UART || \
1222 DEBUG_IMX21_IMX27_UART || \
1223 DEBUG_IMX31_UART || \
1224 DEBUG_IMX35_UART || \
1225 DEBUG_IMX50_UART || \
1226 DEBUG_IMX51_UART || \
1227 DEBUG_IMX53_UART ||\
1228 DEBUG_IMX6Q_UART || \
1229 DEBUG_IMX6SL_UART || \
1231 default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1232 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1233 default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1234 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1235 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1236 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1237 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1238 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1239 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1240 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1241 default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1242 default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1243 default "debug/sirf.S" if DEBUG_SIRFSOC_UART
1244 default "debug/sti.S" if DEBUG_STI_UART
1245 default "debug/tegra.S" if DEBUG_TEGRA_UART
1246 default "debug/ux500.S" if DEBUG_UX500_UART
1247 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1248 default "debug/vf.S" if DEBUG_VF_UART
1249 default "debug/vt8500.S" if DEBUG_VT8500_UART0
1250 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1251 default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1252 default "mach/debug-macro.S"
1254 # Compatibility options for PL01x
1255 config DEBUG_UART_PL01X
1256 def_bool ARCH_EP93XX || \
1257 ARCH_INTEGRATOR || \
1263 # Compatibility options for 8250
1264 config DEBUG_UART_8250
1265 def_bool ARCH_DOVE || ARCH_EBSA110 || \
1266 (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
1267 ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1268 ARCH_IOP33X || ARCH_IXP4XX || \
1269 ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
1271 # Compatibility options for BCM63xx
1272 config DEBUG_UART_BCM63XX
1273 def_bool ARCH_BCM_63XX
1275 config DEBUG_UART_PHYS
1276 hex "Physical base address of debug UART"
1277 default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1278 default 0x01c28000 if DEBUG_SUNXI_UART0
1279 default 0x01c28400 if DEBUG_SUNXI_UART1
1280 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
1281 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1282 default 0x01f02800 if DEBUG_SUNXI_R_UART
1283 default 0x02530c00 if DEBUG_KEYSTONE_UART0
1284 default 0x02531000 if DEBUG_KEYSTONE_UART1
1285 default 0x03010fe0 if ARCH_RPC
1286 default 0x07000000 if DEBUG_SUN9I_UART0
1287 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1288 DEBUG_VEXPRESS_UART0_CA9
1289 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1290 default 0x10124000 if DEBUG_RK3X_UART0
1291 default 0x10126000 if DEBUG_RK3X_UART1
1292 default 0x101f1000 if ARCH_VERSATILE
1293 default 0x101fb000 if DEBUG_NOMADIK_UART
1294 default 0x11002000 if DEBUG_MT8127_UART0
1295 default 0x11006000 if DEBUG_MT6589_UART0
1296 default 0x11009000 if DEBUG_MT8135_UART3
1297 default 0x16000000 if ARCH_INTEGRATOR
1298 default 0x18000300 if DEBUG_BCM_5301X
1299 default 0x18010000 if DEBUG_SIRFATLAS7_UART0
1300 default 0x18020000 if DEBUG_SIRFATLAS7_UART1
1301 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1302 default 0x20001000 if DEBUG_HIP01_UART
1303 default 0x20060000 if DEBUG_RK29_UART0
1304 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1305 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1306 default 0x20201000 if DEBUG_BCM2835
1307 default 0x3e000000 if DEBUG_BCM_KONA_UART
1308 default 0x4000e400 if DEBUG_LL_UART_EFM32
1309 default 0x40090000 if ARCH_LPC32XX
1310 default 0x40100000 if DEBUG_PXA_UART1
1311 default 0x42000000 if ARCH_GEMINI
1312 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1313 DEBUG_S3C2410_UART0)
1314 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1315 DEBUG_S3C2410_UART1)
1316 default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1317 DEBUG_S3C2410_UART2)
1318 default 0x78000000 if DEBUG_CNS3XXX
1319 default 0x7c0003f8 if FOOTBRIDGE
1320 default 0x78000000 if DEBUG_CNS3XXX
1321 default 0x80010000 if DEBUG_ASM9260_UART
1322 default 0x80070000 if DEBUG_IMX23_UART
1323 default 0x80074000 if DEBUG_IMX28_UART
1324 default 0x80230000 if DEBUG_PICOXCELL_UART
1325 default 0x808c0000 if ARCH_EP93XX
1326 default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1327 default 0xa9a00000 if DEBUG_MSM_UART
1328 default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
1329 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
1330 default 0xc0013000 if DEBUG_U300_UART
1331 default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1332 default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1333 default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1334 default 0xd0012000 if DEBUG_MVEBU_UART0
1335 default 0xc81004c0 if DEBUG_MESON_UARTAO
1336 default 0xd4017000 if DEBUG_MMP_UART2
1337 default 0xd4018000 if DEBUG_MMP_UART3
1338 default 0xe0000000 if ARCH_SPEAR13XX
1339 default 0xe4007000 if DEBUG_HIP04_UART
1340 default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
1341 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
1342 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
1343 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
1344 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
1345 default 0xe8008000 if DEBUG_R7S72100_SCIF2
1346 default 0xf0000be0 if ARCH_EBSA110
1347 default 0xf040ab00 if DEBUG_BRCMSTB_UART
1348 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
1349 default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
1350 default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1352 default 0xf7fc9000 if DEBUG_BERLIN_UART
1353 default 0xf8b00000 if DEBUG_HIX5HD2_UART
1354 default 0xf991e000 if DEBUG_QCOM_UARTDM
1355 default 0xfcb00000 if DEBUG_HI3620_UART
1356 default 0xfe800000 if ARCH_IOP32X
1357 default 0xff690000 if DEBUG_RK32_UART2
1358 default 0xffc02000 if DEBUG_SOCFPGA_UART
1359 default 0xffd82340 if ARCH_IOP13XX
1360 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
1361 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
1362 default 0xfff36000 if DEBUG_HIGHBANK_UART
1363 default 0xfffe8600 if DEBUG_UART_BCM63XX
1364 default 0xfffff700 if ARCH_IOP33X
1365 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1366 DEBUG_LL_UART_EFM32 || \
1367 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1368 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
1369 DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
1370 DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
1371 DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
1372 DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
1373 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
1376 config DEBUG_UART_VIRT
1377 hex "Virtual base address of debug UART"
1378 default 0xe0010fe0 if ARCH_RPC
1379 default 0xe1000000 if DEBUG_MSM_UART
1380 default 0xf0000be0 if ARCH_EBSA110
1381 default 0xf0010000 if DEBUG_ASM9260_UART
1382 default 0xf01fb000 if DEBUG_NOMADIK_UART
1383 default 0xf0201000 if DEBUG_BCM2835
1384 default 0xf1000300 if DEBUG_BCM_5301X
1385 default 0xf1002000 if DEBUG_MT8127_UART0
1386 default 0xf1006000 if DEBUG_MT6589_UART0
1387 default 0xf1009000 if DEBUG_MT8135_UART3
1388 default 0xf11f1000 if ARCH_VERSATILE
1389 default 0xf1600000 if ARCH_INTEGRATOR
1390 default 0xf1c28000 if DEBUG_SUNXI_UART0
1391 default 0xf1c28400 if DEBUG_SUNXI_UART1
1392 default 0xf1f02800 if DEBUG_SUNXI_R_UART
1393 default 0xf6200000 if DEBUG_PXA_UART1
1394 default 0xf4090000 if ARCH_LPC32XX
1395 default 0xf4200000 if ARCH_GEMINI
1396 default 0xf7000000 if DEBUG_SUN9I_UART0
1397 default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
1398 DEBUG_S3C2410_UART0)
1399 default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
1400 DEBUG_S3C2410_UART1)
1401 default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
1402 DEBUG_S3C2410_UART2)
1403 default 0xf7fc9000 if DEBUG_BERLIN_UART
1404 default 0xf8007000 if DEBUG_HIP04_UART
1405 default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
1406 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1407 default 0xfa71e000 if DEBUG_QCOM_UARTDM
1408 default 0xfb002000 if DEBUG_CNS3XXX
1409 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
1410 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1411 default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1412 default 0xfcfe8600 if DEBUG_UART_BCM63XX
1413 default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1414 default 0xfd000000 if ARCH_SPEAR13XX
1415 default 0xfd012000 if ARCH_MV78XX0
1416 default 0xfde12000 if ARCH_DOVE
1417 default 0xfe012000 if ARCH_ORION5X
1418 default 0xf31004c0 if DEBUG_MESON_UARTAO
1419 default 0xfe017000 if DEBUG_MMP_UART2
1420 default 0xfe018000 if DEBUG_MMP_UART3
1421 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1422 default 0xfe230000 if DEBUG_PICOXCELL_UART
1423 default 0xfe300000 if DEBUG_BCM_KONA_UART
1424 default 0xfe800000 if ARCH_IOP32X
1425 default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1426 default 0xfeb24000 if DEBUG_RK3X_UART0
1427 default 0xfeb26000 if DEBUG_RK3X_UART1
1428 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
1429 default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1430 default 0xfec02000 if DEBUG_SOCFPGA_UART
1431 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
1432 default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
1433 default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
1434 default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1435 default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
1436 default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
1437 default 0xfec90000 if DEBUG_RK32_UART2
1438 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
1439 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1440 default 0xfed60000 if DEBUG_RK29_UART0
1441 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
1442 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1443 default 0xfedc0000 if ARCH_EP93XX
1444 default 0xfee003f8 if FOOTBRIDGE
1445 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1446 default 0xfee82340 if ARCH_IOP13XX
1447 default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
1448 default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1449 default 0xfef36000 if DEBUG_HIGHBANK_UART
1450 default 0xfefff700 if ARCH_IOP33X
1451 default 0xff003000 if DEBUG_U300_UART
1452 default 0xffd01000 if DEBUG_HIP01_UART
1453 default DEBUG_UART_PHYS if !MMU
1454 depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1455 DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1456 DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
1457 DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || DEBUG_SIRFSOC_UART
1459 config DEBUG_UART_8250_SHIFT
1460 int "Register offset shift for the 8250 debug UART"
1461 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1462 default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
1465 config DEBUG_UART_8250_WORD
1466 bool "Use 32-bit accesses for 8250 UART"
1467 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1468 depends on DEBUG_UART_8250_SHIFT >= 2
1469 default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1471 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1472 DEBUG_DAVINCI_DA8XX_UART2 || \
1473 DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
1476 config DEBUG_UART_8250_FLOW_CONTROL
1477 bool "Enable flow control for 8250 UART"
1478 depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1479 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
1481 config DEBUG_UNCOMPRESS
1483 depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1484 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1485 (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1487 This option influences the normal decompressor output for
1488 multiplatform kernels. Normally, multiplatform kernels disable
1489 decompressor output because it is not possible to know where to
1490 send the decompressor output.
1492 When this option is set, the selected DEBUG_LL output method
1493 will be re-used for normal decompressor output on multiplatform
1497 config UNCOMPRESS_INCLUDE
1499 default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1500 PLAT_SAMSUNG || ARCH_EFM32
1501 default "mach/uncompress.h"
1507 Say Y here if you want to have an early console using the
1508 kernel low-level debugging functions. Add earlyprintk to your
1509 kernel parameters to enable this console.
1511 config ARM_KPROBES_TEST
1512 tristate "Kprobes test module"
1513 depends on KPROBES && MODULES
1515 Perform tests of kprobes API and instruction set simulation.
1517 config PID_IN_CONTEXTIDR
1518 bool "Write the current PID to the CONTEXTIDR register"
1519 depends on CPU_COPY_V6
1521 Enabling this option causes the kernel to write the current PID to
1522 the PROCID field of the CONTEXTIDR register, at the expense of some
1523 additional instructions during context switch. Say Y here only if you
1524 are planning to use hardware trace tools with this kernel.
1526 config DEBUG_SET_MODULE_RONX
1527 bool "Set loadable kernel module data as NX and text as RO"
1530 This option helps catch unintended modifications to loadable
1531 kernel module's text and read-only data. It also prevents execution
1532 of module data. Such protection may interfere with run-time code
1533 patching and dynamic kernel tracing - and they might also protect
1534 against certain classes of kernel exploits.
1535 If in doubt, say "N".
1537 menuconfig CORESIGHT
1538 bool "CoreSight Tracing Support"
1541 This framework provides a kernel interface for the CoreSight debug
1542 and trace drivers to register themselves with. It's intended to build
1543 a topological view of the CoreSight components based on a DT
1544 specification and configure the right serie of components when a
1545 trace source gets enabled.
1548 config CORESIGHT_LINKS_AND_SINKS
1549 bool "CoreSight Link and Sink drivers"
1551 This enables support for CoreSight link and sink drivers that are
1552 responsible for transporting and collecting the trace data
1553 respectively. Link and sinks are dynamically aggregated with a trace
1554 entity at run time to form a complete trace path.
1556 config CORESIGHT_LINK_AND_SINK_TMC
1557 bool "Coresight generic TMC driver"
1558 depends on CORESIGHT_LINKS_AND_SINKS
1560 This enables support for the Trace Memory Controller driver. Depending
1561 on its configuration the device can act as a link (embedded trace router
1562 - ETR) or sink (embedded trace FIFO). The driver complies with the
1563 generic implementation of the component without special enhancement or
1566 config CORESIGHT_SINK_TPIU
1567 bool "Coresight generic TPIU driver"
1568 depends on CORESIGHT_LINKS_AND_SINKS
1570 This enables support for the Trace Port Interface Unit driver, responsible
1571 for bridging the gap between the on-chip coresight components and a trace
1572 port collection engine, typically connected to an external host for use
1573 case capturing more traces than the on-board coresight memory can handle.
1575 config CORESIGHT_SINK_ETBV10
1576 bool "Coresight ETBv1.0 driver"
1577 depends on CORESIGHT_LINKS_AND_SINKS
1579 This enables support for the Embedded Trace Buffer version 1.0 driver
1580 that complies with the generic implementation of the component without
1581 special enhancement or added features.
1583 config CORESIGHT_SOURCE_ETM3X
1584 bool "CoreSight Embedded Trace Macrocell 3.x driver"
1585 select CORESIGHT_LINKS_AND_SINKS
1587 This driver provides support for processor ETM3.x and PTM1.x modules,
1588 which allows tracing the instructions that a processor is executing
1589 This is primarily useful for instruction level tracing. Depending
1590 the ETM version data tracing may also be available.