arch/arm/Kconfig.debug

1 # SPDX-License-Identifier: GPL-2.0
44 		once the kernel has booted up - it's a one time check.
107 	      1 - undefined instruction events
108 	      2 - system calls
109 	      4 - invalid data aborts
110 	      8 - SIGSEGV faults
111 	     16 - SIGBUS faults
115 	bool "Kernel low-level debugging functions (read help!)"
128 	prompt "Kernel low-level debugging port"
132 		bool "Kernel low-level debugging messages via Alpine UART0"
136 		  Say Y here if you want kernel low-level debugging support
137 		  on Alpine based platforms.
140 		bool "Kernel low-level debugging via asm9260 UART"
144 		  their output to an UART or USART port on asm9260 based
161 		bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU"
165 		  Say Y here if you want kernel low-level debugging support
171 		bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
175 		  Say Y here if you want kernel low-level debugging support
181 		bool "Kernel low-level debugging on SAMA5D2 UART1"
185 		  Say Y here if you want kernel low-level debugging support
189 		bool "Kernel low-level debugging on SAMA5D4 USART3"
193 		  Say Y here if you want kernel low-level debugging support
197 		bool "Kernel low-level debugging via SAMV7 USART1"
202 		  their output to the USART1 port on SAMV7 based
206 		bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3"
210 		  Say Y here if you want kernel low-level debugging support
214 		bool "Kernel low-level debugging on LAN966 FLEXCOM USART"
218 		Say Y here if you want kernel low-level debugging support
229 		By default, enabling FLEXCOM3 port. Based on requirement, use
234 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
239 		bool "Kernel low-level debugging on BCM2836 PL011 UART"
244 		bool "Kernel low-level debugging on BCM5301X/NSP UART1"
249 		bool "Kernel low-level debugging on Hurricane 2 UART2"
254 		bool "Kernel low-level debugging on BCM IPROC UART3"
262 		bool "Kernel low-level debugging messages via BCM KONA UART"
266 		  Say Y here if you want kernel low-level debugging support
273 		bool "Kernel low-level debugging on BCM63XX UART"
281 		  Say Y here if you want kernel low-level debugging support
282 		  on Marvell Berlin SoC based platforms.
285 		bool "Use BRCMSTB UART for low-level debug"
291 		  based on the chip identification register value.
297 		bool "Kernel low-level debugging messages via UART1"
304 		bool "Kernel low-level debugging messages via UART2"
311 		bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
319 		bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
327 		bool "Kernel low-level debugging messages via footbridge serial port"
334 		bool "Kernel low-level debugging messages via Digicolor UA0"
341 		bool "Kernel low-level debugging messages via ep93xx UART"
345 		  Say Y here if you want kernel low-level debugging support
346 		  on Cirrus Logic EP93xx based platforms.
349 		bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
357 		bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
361 		  Say Y here if you want kernel low-level debugging support
362 		  on Cortina Gemini based platforms.
369 		  Say Y here if you want kernel low-level debugging support
373 		bool "Kernel low-level debugging messages via Highbank UART"
378 		  their output to the UART on Highbank based devices.
385 		  Say Y here if you want kernel low-level debugging support
393 		  Say Y here if you want kernel low-level debugging support
401 		  Say Y here if you want kernel low-level debugging support
408 		  Say Y here if you want kernel low-level debugging support
416 		  Say Y here if you want kernel low-level debugging support
423 		  Say Y here if you want kernel low-level debugging support
430 		  Say Y here if you want kernel low-level debugging support
438 		  Say Y here if you want kernel low-level debugging support
445 		  Say Y here if you want kernel low-level debugging support
452 		  Say Y here if you want kernel low-level debugging support
459 		  Say Y here if you want kernel low-level debugging support
466 		  Say Y here if you want kernel low-level debugging support
473 		  Say Y here if you want kernel low-level debugging support
480 		  Say Y here if you want kernel low-level debugging support
487 		  Say Y here if you want kernel low-level debugging support
494 		  Say Y here if you want kernel low-level debugging support
501 		  Say Y here if you want kernel low-level debugging support
508 		  Say Y here if you want kernel low-level debugging support
512 		bool "Kernel low-level debugging messages via ARM Integrator UART"
516 		  Say Y here if you want kernel low-level debugging support
520 		bool "Kernel low-level debugging on KEYSTONE2 using UART0"
528 		bool "Kernel low-level debugging on KEYSTONE2 using UART1"
536 		bool "Kernel low-level debugging via LPC18xx/43xx UART0"
540 		  Say Y here if you want kernel low-level debugging support
544 		bool "Kernel low-level debugging messages via NXP LPC32xx UART"
548 		  Say Y here if you want kernel low-level debugging support
549 		  on NXP LPC32xx based platforms.
552 		bool "Kernel low-level debugging via Meson6 UARTAO"
555 		  Say Y here if you want kernel low-lever debugging support
556 		  on Amlogic Meson6 based platforms on the UARTAO.
559 		bool "Kernel low-level debugging message via MMP UART2"
563 		  Say Y here if you want kernel low-level debugging support
567 		bool "Kernel low-level debugging message via MMP UART3"
571 		  Say Y here if you want kernel low-level debugging support
575 		bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
580 		  Say Y here if you want kernel low-level debugging support
581 		  on MVEBU based platforms on UART0.
595 		  when u-boot hands over to the kernel, the system
599 		bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
603 		  Say Y here if you want kernel low-level debugging support
604 		  on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
612 		  when u-boot hands over to the kernel, the system
616 		bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
620 		  Say Y here if you want kernel low-level debugging support
621 		  on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
630 		  when u-boot hands over to the kernel, the system
634 		bool "Kernel low-level debugging messages via MSTARV7 PM UART"
638 		  Say Y here if you want kernel low-level debugging support
639 		  for MSTAR ARMv7-based platforms on PM UART.
646 		  Say Y here if you want kernel low-level debugging support
647 		  for Mediatek mt6589 based platforms on UART0.
654 		  Say Y here if you want kernel low-level debugging support
655 		  for Mediatek mt8127 based platforms on UART0.
662 		  Say Y here if you want kernel low-level debugging support
663 		  for Mediatek mt8135 based platforms on UART3.
666 		bool "Kernel low-level debugging messages via NOMADIK UART"
670 		  Say Y here if you want kernel low-level debugging support
671 		  on NOMADIK based platforms.
674 		bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
678 		  Say Y here if you want kernel low-level debugging support
679 		  on TI-NSPIRE classic models.
682 		bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
686 		  Say Y here if you want kernel low-level debugging support
687 		  on TI-NSPIRE CX models.
690 		bool "Kernel low-level debugging via OMAP1 UART1"
694 		  Say Y here if you want kernel low-level debugging support
695 		  on OMAP1 based platforms (except OMAP730) on the UART1.
698 		bool "Kernel low-level debugging via OMAP1 UART2"
702 		  Say Y here if you want kernel low-level debugging support
703 		  on OMAP1 based platforms (except OMAP730) on the UART2.
706 		bool "Kernel low-level debugging via OMAP1 UART3"
710 		  Say Y here if you want kernel low-level debugging support
711 		  on OMAP1 based platforms (except OMAP730) on the UART3.
722 		bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
727 		bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
732 		bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
741 		bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
746 		bool "Kernel low-level debugging messages via OMAP36XX UART4"
751 		bool "Kernel low-level debugging messages via OMAP4/5 UART4"
756 		bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
761 		bool "Kernel low-level debugging messages via TI81XX UART2"
766 		bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
771 		bool "Kernel low-level debugging messages via AM33XX UART1"
776 		bool "Kernel low-level debugging messages via Zoom2/3 UART"
782 		bool "Use PXA UART1 for low-level debug"
785 		  Say Y here if you want kernel low-level debugging support
789 		bool "Kernel low-level debugging messages via QCOM UARTDM"
804 		  options based on your needs.
825 		bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
829 		  Say Y here if you want kernel low-level debugging support
830                   on Rockchip RV1108 based platforms.
833 		bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
837 		  Say Y here if you want kernel low-level debugging support
838 		  on Rockchip RV1108 based platforms.
841 		bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
845 		  Say Y here if you want kernel low-level debugging support
846 		  on Rockchip RV1108 based platforms.
849 		bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
853 		  Say Y here if you want kernel low-level debugging support
854 		  on Rockchip based platforms.
857 		bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
861 		  Say Y here if you want kernel low-level debugging support
862 		  on Rockchip based platforms.
865 		bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
869 		  Say Y here if you want kernel low-level debugging support
870 		  on Rockchip based platforms.
873 		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
877 		  Say Y here if you want kernel low-level debugging support
878 		  on Rockchip based platforms.
881 		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
885 		  Say Y here if you want kernel low-level debugging support
886 		  on Rockchip based platforms.
889 		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
893 		  Say Y here if you want kernel low-level debugging support
894 		  on Rockchip based platforms.
897 		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
901 		  Say Y here if you want kernel low-level debugging support
902 		  on Rockchip based platforms.
905 		bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
909 		  Say Y here if you want kernel low-level debugging support
910 		  on Rockchip RK32xx based platforms.
913 		bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
916 		  Say Y here if you want kernel low-level debugging support
920 		bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
923 		  Say Y here if you want kernel low-level debugging support
927 		bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
930 		  Say Y here if you want kernel low-level debugging support
934 		bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
937 		  Say Y here if you want kernel low-level debugging support
938 		  via SCIF0 on Renesas R-Car M1A (R8A7778).
941 		bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
944 		  Say Y here if you want kernel low-level debugging support
945 		  via SCIF2 on Renesas R-Car H1 (R8A7779).
948 		bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
952 		  Say Y here if you want kernel low-level debugging support
954 		  R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or
955 		  M2-N (R8A7793).
958 		bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
961 		  Say Y here if you want kernel low-level debugging support
965 		bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
968 		  Say Y here if you want kernel low-level debugging support
969 		  via SCIF2 on Renesas R-Car E2 (R8A7794).
972 		bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
975 		  Say Y here if you want kernel low-level debugging support
979 		bool "Kernel low-level debugging messages via SCIFA2 on R8A7742"
982 		  Say Y here if you want kernel low-level debugging support
986 		bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
989 		  Say Y here if you want kernel low-level debugging support
990 		  via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
993 		bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
996 		  Say Y here if you want kernel low-level debugging support
997 		  via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
1000 		bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
1003 		  Say Y here if you want kernel low-level debugging support
1004 		  via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
1011 		bool "Use Samsung S3C UART 0 for low-level debug"
1015 		  by the boot-loader before use.
1022 		bool "Use Samsung S3C UART 1 for low-level debug"
1025 		  their output to UART 1. The port must have been initialised
1026 		  by the boot-loader before use.
1033 		bool "Use Samsung S3C UART 2 for low-level debug"
1037 		  by the boot-loader before use.
1044 		bool "Use Samsung S3C UART 3 for low-level debug"
1048 		  by the boot-loader before use.
1052 		bool "Use SA1100 UARTs for low-level debug"
1054 		  Say Y here if you want kernel low-level debugging support
1055 		  on SA-11x0 UART ports. The kernel will check for the first
1056 		  enabled UART in a sequence 3-1-2.
1063 		  Say Y here if you want kernel low-level debugging support
1068 		bool "Use SOCFPGA UART0 for low-level debug"
1071 		  Say Y here if you want kernel low-level debugging support
1072 		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1076 		bool "Use SOCFPGA Arria10 UART1 for low-level debug"
1079 		  Say Y here if you want kernel low-level debugging support
1080 		  on SOCFPGA(Arria 10) based platforms.
1084 		bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
1087 		  Say Y here if you want kernel low-level debugging support
1088 		  on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
1091 		bool "Kernel low-level debugging messages via sun9i UART0"
1095 		  Say Y here if you want kernel low-level debugging support
1096 		  on Allwinner A80 based platforms on the UART0.
1099 		bool "Kernel low-level debugging messages via sunXi UART0"
1103 		  Say Y here if you want kernel low-level debugging support
1104 		  on Allwinner A1X based platforms on the UART0.
1107 		bool "Kernel low-level debugging messages via sunXi UART1"
1111 		  Say Y here if you want kernel low-level debugging support
1112 		  on Allwinner A1X based platforms on the UART1.
1115 		bool "Kernel low-level debugging messages via sunXi R_UART"
1119 		  Say Y here if you want kernel low-level debugging support
1120 		  on Allwinner A31/A23 based platforms on the R_UART.
1123 		bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
1127 		  Say Y here if you want kernel low-level debugging support
1128 		  on ST SPEAr based platforms.
1131 		bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
1135 		  Say Y here if you want kernel low-level debugging support
1136 		  on ST SPEAr13xx based platforms.
1139 		bool "Use StiH415/416 ASC2 UART for low-level debug"
1142 		  Say Y here if you want kernel low-level debugging support
1143 		  on STiH415/416 based platforms like b2000, which has
1149 		bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
1152 		  Say Y here if you want kernel low-level debugging support
1153 		  on STiH415/416 based platforms like b2020. which has
1159 		bool "Use StiH418 SBC ASC0 UART for low-level debug"
1162 		  Say Y here if you want kernel low-level debugging support
1163 		  on STiH418 based platforms which has default UART wired
1169 		bool "Use STM32F4 UART for low-level debug"
1173 		  Say Y here if you want kernel low-level debugging support
1174 		  on STM32F4 based platforms, which default UART is wired on
1181 		bool "Use STM32F7 UART for low-level debug"
1185 		  Say Y here if you want kernel low-level debugging support
1186 		  on STM32F7 based platforms, which default UART is wired on
1193 		bool "Use STM32H7 UART for low-level debug"
1197 		  Say Y here if you want kernel low-level debugging support
1198 		  on STM32H7 based platforms, which default UART is wired on
1205 		bool "Use STM32MP1 UART for low-level debug"
1209 		  Say Y here if you want kernel low-level debugging support on
1210 		  STM32MP1-based platforms, where the default UART is wired to
1217 		bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
1221 		  Automatically determines which UART to use for low-level
1222 		  debug based on the ODMDATA value. This value is part of
1225 		  then bits 17:15 indicate which UART to use; 0/1/2/3/4
1229 		bool "Kernel low-level debugging messages via Tegra UART A"
1233 		  Say Y here if you want kernel low-level debugging support
1234 		  on Tegra based platforms.
1237 		bool "Kernel low-level debugging messages via Tegra UART B"
1241 		  Say Y here if you want kernel low-level debugging support
1242 		  on Tegra based platforms.
1245 		bool "Kernel low-level debugging messages via Tegra UART C"
1249 		  Say Y here if you want kernel low-level debugging support
1250 		  on Tegra based platforms.
1253 		bool "Kernel low-level debugging messages via Tegra UART D"
1257 		  Say Y here if you want kernel low-level debugging support
1258 		  on Tegra based platforms.
1261 		bool "Kernel low-level debugging messages via Tegra UART E"
1265 		  Say Y here if you want kernel low-level debugging support
1266 		  on Tegra based platforms.
1270 		bool "Use Ux500 UART for low-level debug"
1272 		  Say Y here if you want kernel low-level debugging support
1273 		  on Ux500 based platforms.
1276 		bool "Kernel low-level debugging messages via ARM Versatile UART"
1280 		  Say Y here if you want kernel low-level debugging support
1284 		bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
1291 		  Note that this will only work with standard A-class core tiles,
1292 		  and may fail with non-standard SMM or custom software models.
1295 		bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
1300 		  this applies only to the V2P-CA9 tile.
1308 		  of the tiles using the RS1 memory map, including all new A-class
1309 		  core tiles, FPGA-based SMMs and software models.
1312 		bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
1317 		  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
1323 		  Say Y here if you want kernel low-level debugging support
1324 		  on Vybrid based platforms.
1330 		  This option selects UART0 on VIA/Wondermedia System-on-a-chip
1334 		bool "Kernel low-level debugging on Xilinx Zynq using UART0"
1341 		bool "Kernel low-level debugging on Xilinx Zynq using UART1"
1351 		bool "Kernel low-level debugging via EmbeddedICE DCC channel"
1355 		  co-processor 14. This is known to work on the ARM9 style ICE
1362 		bool "Kernel low-level debug output via semihosting I/O"
1378 		bool "Kernel low-level debugging via 8250 UART"
1391 		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
1423 	default "1" if DEBUG_S3C_UART1
1446 	default 1
1448 	  Choose UART port on which kernel low-level debug messages
1453 	default 1
1457 	  Choose UART port on which kernel low-level debug messages
1507 	default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
1508 	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
1509 	default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
1510 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
1511 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
1512 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
1513 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
1514 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
1515 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
1516 	default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2
1517 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
1518 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
1519 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
1535 	default "mach/debug-macro.S"
1786 	bool "Use 32-bit accesses for 8250 UART"
1797 	bool "8250 UART is Palmchip BK-310x"
1825 	  kernel low-level debugging functions. Add earlyprintk to your