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- menu "Kernel hacking"
- source "lib/Kconfig.debug"
- config STRICT_DEVMEM
- bool "Filter access to /dev/mem"
- depends on MMU
- ---help---
- If this option is disabled, you allow userspace (root) access to all
- of memory, including kernel and userspace memory. Accidental
- access to this is obviously disastrous, but specific access can
- be used by people debugging the kernel.
- If this option is switched on, the /dev/mem file only allows
- userspace access to memory mapped peripherals.
- If in doubt, say Y.
- # RMK wants arm kernels compiled with frame pointers or stack unwinding.
- # If you know what you are doing and are willing to live without stack
- # traces, you can get a slightly smaller kernel by setting this option to
- # n, but then RMK will have to kill you ;).
- config FRAME_POINTER
- bool
- depends on !THUMB2_KERNEL
- default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
- help
- If you say N here, the resulting kernel will be slightly smaller and
- faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
- when a problem occurs with the kernel, the information that is
- reported is severely limited.
- config ARM_UNWIND
- bool "Enable stack unwinding support (EXPERIMENTAL)"
- depends on AEABI
- default y
- help
- This option enables stack unwinding support in the kernel
- using the information automatically generated by the
- compiler. The resulting kernel image is slightly bigger but
- the performance is not affected. Currently, this feature
- only works with EABI compilers. If unsure say Y.
- config OLD_MCOUNT
- bool
- depends on FUNCTION_TRACER && FRAME_POINTER
- default y
- config DEBUG_USER
- bool "Verbose user fault messages"
- help
- When a user program crashes due to an exception, the kernel can
- print a brief message explaining what the problem was. This is
- sometimes helpful for debugging but serves no purpose on a
- production system. Most people should say N here.
- In addition, you need to pass user_debug=N on the kernel command
- line to enable this feature. N consists of the sum of:
- 1 - undefined instruction events
- 2 - system calls
- 4 - invalid data aborts
- 8 - SIGSEGV faults
- 16 - SIGBUS faults
- # These options are only for real kernel hackers who want to get their hands dirty.
- config DEBUG_LL
- bool "Kernel low-level debugging functions (read help!)"
- depends on DEBUG_KERNEL
- help
- Say Y here to include definitions of printascii, printch, printhex
- in the kernel. This is helpful if you are debugging code that
- executes before the console is initialized.
- Note that selecting this option will limit the kernel to a single
- UART definition, as specified below. Attempting to boot the kernel
- image on a different platform *will not work*, so this option should
- not be enabled for kernels that are intended to be portable.
- choice
- prompt "Kernel low-level debugging port"
- depends on DEBUG_LL
- config AT91_DEBUG_LL_DBGU0
- bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
- depends on HAVE_AT91_DBGU0
- config AT91_DEBUG_LL_DBGU1
- bool "Kernel low-level debugging on 9263 and 9g45"
- depends on HAVE_AT91_DBGU1
- config DEBUG_BCM2835
- bool "Kernel low-level debugging on BCM2835 PL011 UART"
- depends on ARCH_BCM2835
- config DEBUG_CLPS711X_UART1
- bool "Kernel low-level debugging messages via UART1"
- depends on ARCH_CLPS711X
- help
- Say Y here if you want the debug print routines to direct
- their output to the first serial port on these devices.
- config DEBUG_CLPS711X_UART2
- bool "Kernel low-level debugging messages via UART2"
- depends on ARCH_CLPS711X
- help
- Say Y here if you want the debug print routines to direct
- their output to the second serial port on these devices.
- config DEBUG_CNS3XXX
- bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
- depends on ARCH_CNS3XXX
- help
- Say Y here if you want the debug print routines to direct
- their output to the CNS3xxx UART0.
- config DEBUG_DAVINCI_DA8XX_UART1
- bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
- depends on ARCH_DAVINCI_DA8XX
- help
- Say Y here if you want the debug print routines to direct
- their output to UART1 serial port on DaVinci DA8XX devices.
- config DEBUG_DAVINCI_DA8XX_UART2
- bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
- depends on ARCH_DAVINCI_DA8XX
- help
- Say Y here if you want the debug print routines to direct
- their output to UART2 serial port on DaVinci DA8XX devices.
- config DEBUG_DAVINCI_DMx_UART0
- bool "Kernel low-level debugging on DaVinci DMx using UART0"
- depends on ARCH_DAVINCI_DMx
- help
- Say Y here if you want the debug print routines to direct
- their output to UART0 serial port on DaVinci DMx devices.
- config DEBUG_DAVINCI_TNETV107X_UART1
- bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
- depends on ARCH_DAVINCI_TNETV107X
- help
- Say Y here if you want the debug print routines to direct
- their output to UART1 serial port on DaVinci TNETV107X
- devices.
- config DEBUG_ZYNQ_UART0
- bool "Kernel low-level debugging on Xilinx Zynq using UART0"
- depends on ARCH_ZYNQ
- help
- Say Y here if you want the debug print routines to direct
- their output to UART0 on the Zynq platform.
- config DEBUG_ZYNQ_UART1
- bool "Kernel low-level debugging on Xilinx Zynq using UART1"
- depends on ARCH_ZYNQ
- help
- Say Y here if you want the debug print routines to direct
- their output to UART1 on the Zynq platform.
- If you have a ZC702 board and want early boot messages to
- appear on the USB serial adaptor, select this option.
- config DEBUG_DC21285_PORT
- bool "Kernel low-level debugging messages via footbridge serial port"
- depends on FOOTBRIDGE
- help
- Say Y here if you want the debug print routines to direct
- their output to the serial port in the DC21285 (Footbridge).
- config DEBUG_FOOTBRIDGE_COM1
- bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
- depends on FOOTBRIDGE
- help
- Say Y here if you want the debug print routines to direct
- their output to the 8250 at PCI COM1.
- config DEBUG_HIGHBANK_UART
- bool "Kernel low-level debugging messages via Highbank UART"
- depends on ARCH_HIGHBANK
- help
- Say Y here if you want the debug print routines to direct
- their output to the UART on Highbank based devices.
- config DEBUG_IMX1_UART
- bool "i.MX1 Debug UART"
- depends on SOC_IMX1
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX1.
- config DEBUG_IMX23_UART
- bool "i.MX23 Debug UART"
- depends on SOC_IMX23
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX23.
- config DEBUG_IMX25_UART
- bool "i.MX25 Debug UART"
- depends on SOC_IMX25
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX25.
- config DEBUG_IMX21_IMX27_UART
- bool "i.MX21 and i.MX27 Debug UART"
- depends on SOC_IMX21 || SOC_IMX27
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX21 or i.MX27.
- config DEBUG_IMX28_UART
- bool "i.MX28 Debug UART"
- depends on SOC_IMX28
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX28.
- config DEBUG_IMX31_UART
- bool "i.MX31 Debug UART"
- depends on SOC_IMX31
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX31.
- config DEBUG_IMX35_UART
- bool "i.MX35 Debug UART"
- depends on SOC_IMX35
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX35.
- config DEBUG_IMX51_UART
- bool "i.MX51 Debug UART"
- depends on SOC_IMX51
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX51.
- config DEBUG_IMX53_UART
- bool "i.MX53 Debug UART"
- depends on SOC_IMX53
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX53.
- config DEBUG_IMX6Q_UART
- bool "i.MX6Q/DL Debug UART"
- depends on SOC_IMX6Q
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX6Q/DL.
- config DEBUG_IMX6SL_UART
- bool "i.MX6SL Debug UART"
- depends on SOC_IMX6SL
- help
- Say Y here if you want kernel low-level debugging support
- on i.MX6SL.
- config DEBUG_KEYSTONE_UART0
- bool "Kernel low-level debugging on KEYSTONE2 using UART0"
- depends on ARCH_KEYSTONE
- help
- Say Y here if you want the debug print routines to direct
- their output to UART0 serial port on KEYSTONE2 devices.
- config DEBUG_KEYSTONE_UART1
- bool "Kernel low-level debugging on KEYSTONE2 using UART1"
- depends on ARCH_KEYSTONE
- help
- Say Y here if you want the debug print routines to direct
- their output to UART1 serial port on KEYSTONE2 devices.
- config DEBUG_MMP_UART2
- bool "Kernel low-level debugging message via MMP UART2"
- depends on ARCH_MMP
- help
- Say Y here if you want kernel low-level debugging support
- on MMP UART2.
- config DEBUG_MMP_UART3
- bool "Kernel low-level debugging message via MMP UART3"
- depends on ARCH_MMP
- help
- Say Y here if you want kernel low-level debugging support
- on MMP UART3.
- config DEBUG_MSM_UART1
- bool "Kernel low-level debugging messages via MSM UART1"
- depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
- help
- Say Y here if you want the debug print routines to direct
- their output to the first serial port on MSM devices.
- config DEBUG_MSM_UART2
- bool "Kernel low-level debugging messages via MSM UART2"
- depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
- help
- Say Y here if you want the debug print routines to direct
- their output to the second serial port on MSM devices.
- config DEBUG_MSM_UART3
- bool "Kernel low-level debugging messages via MSM UART3"
- depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
- help
- Say Y here if you want the debug print routines to direct
- their output to the third serial port on MSM devices.
- config DEBUG_MSM8660_UART
- bool "Kernel low-level debugging messages via MSM 8660 UART"
- depends on ARCH_MSM8X60
- select MSM_HAS_DEBUG_UART_HS
- help
- Say Y here if you want the debug print routines to direct
- their output to the serial port on MSM 8660 devices.
- config DEBUG_MSM8960_UART
- bool "Kernel low-level debugging messages via MSM 8960 UART"
- depends on ARCH_MSM8960
- select MSM_HAS_DEBUG_UART_HS
- help
- Say Y here if you want the debug print routines to direct
- their output to the serial port on MSM 8960 devices.
- config DEBUG_MVEBU_UART
- bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
- depends on ARCH_MVEBU
- help
- Say Y here if you want kernel low-level debugging support
- on MVEBU based platforms.
- This option should be used with the old bootloaders
- that left the internal registers mapped at
- 0xd0000000. As of today, this is the case on
- platforms such as the Globalscale Mirabox or the
- Plathome OpenBlocks AX3, when using the original
- bootloader.
- If the wrong DEBUG_MVEBU_UART* option is selected,
- when u-boot hands over to the kernel, the system
- silently crashes, with no serial output at all.
- config DEBUG_MVEBU_UART_ALTERNATE
- bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
- depends on ARCH_MVEBU
- help
- Say Y here if you want kernel low-level debugging support
- on MVEBU based platforms.
- This option should be used with the new bootloaders
- that remap the internal registers at 0xf1000000.
- If the wrong DEBUG_MVEBU_UART* option is selected,
- when u-boot hands over to the kernel, the system
- silently crashes, with no serial output at all.
- config DEBUG_NOMADIK_UART
- bool "Kernel low-level debugging messages via NOMADIK UART"
- depends on ARCH_NOMADIK
- help
- Say Y here if you want kernel low-level debugging support
- on NOMADIK based platforms.
- config DEBUG_NSPIRE_CLASSIC_UART
- bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
- depends on ARCH_NSPIRE
- help
- Say Y here if you want kernel low-level debugging support
- on TI-NSPIRE classic models.
- config DEBUG_NSPIRE_CX_UART
- bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
- depends on ARCH_NSPIRE
- help
- Say Y here if you want kernel low-level debugging support
- on TI-NSPIRE CX models.
- config DEBUG_OMAP2PLUS_UART
- bool "Kernel low-level debugging messages via OMAP2PLUS UART"
- depends on ARCH_OMAP2PLUS
- help
- Say Y here if you want kernel low-level debugging support
- on OMAP2PLUS based platforms.
- config DEBUG_PICOXCELL_UART
- depends on ARCH_PICOXCELL
- bool "Use PicoXcell UART for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on PicoXcell based platforms.
- config DEBUG_PXA_UART1
- depends on ARCH_PXA
- bool "Use PXA UART1 for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on PXA UART1.
- config DEBUG_REALVIEW_STD_PORT
- bool "RealView Default UART"
- depends on ARCH_REALVIEW
- help
- Say Y here if you want the debug print routines to direct
- their output to the serial port on RealView EB, PB11MP, PBA8
- and PBX platforms.
- config DEBUG_REALVIEW_PB1176_PORT
- bool "RealView PB1176 UART"
- depends on MACH_REALVIEW_PB1176
- help
- Say Y here if you want the debug print routines to direct
- their output to the standard serial port on the RealView
- PB1176 platform.
- config DEBUG_ROCKCHIP_UART
- bool "Kernel low-level debugging messages via Rockchip UART"
- depends on ARCH_ROCKCHIP
- help
- Say Y here if you want kernel low-level debugging support
- on Rockchip based platforms.
- config DEBUG_S3C_UART0
- depends on PLAT_SAMSUNG
- select DEBUG_EXYNOS_UART if ARCH_EXYNOS
- bool "Use S3C UART 0 for low-level debug"
- help
- Say Y here if you want the debug print routines to direct
- their output to UART 0. The port must have been initialised
- by the boot-loader before use.
- The uncompressor code port configuration is now handled
- by CONFIG_S3C_LOWLEVEL_UART_PORT.
- config DEBUG_S3C_UART1
- depends on PLAT_SAMSUNG
- select DEBUG_EXYNOS_UART if ARCH_EXYNOS
- bool "Use S3C UART 1 for low-level debug"
- help
- Say Y here if you want the debug print routines to direct
- their output to UART 1. The port must have been initialised
- by the boot-loader before use.
- The uncompressor code port configuration is now handled
- by CONFIG_S3C_LOWLEVEL_UART_PORT.
- config DEBUG_S3C_UART2
- depends on PLAT_SAMSUNG
- select DEBUG_EXYNOS_UART if ARCH_EXYNOS
- bool "Use S3C UART 2 for low-level debug"
- help
- Say Y here if you want the debug print routines to direct
- their output to UART 2. The port must have been initialised
- by the boot-loader before use.
- The uncompressor code port configuration is now handled
- by CONFIG_S3C_LOWLEVEL_UART_PORT.
- config DEBUG_S3C_UART3
- depends on PLAT_SAMSUNG && ARCH_EXYNOS
- select DEBUG_EXYNOS_UART
- bool "Use S3C UART 3 for low-level debug"
- help
- Say Y here if you want the debug print routines to direct
- their output to UART 3. The port must have been initialised
- by the boot-loader before use.
- The uncompressor code port configuration is now handled
- by CONFIG_S3C_LOWLEVEL_UART_PORT.
- config DEBUG_SOCFPGA_UART
- depends on ARCH_SOCFPGA
- bool "Use SOCFPGA UART for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on SOCFPGA based platforms.
- config DEBUG_SUNXI_UART0
- bool "Kernel low-level debugging messages via sunXi UART0"
- depends on ARCH_SUNXI
- help
- Say Y here if you want kernel low-level debugging support
- on Allwinner A1X based platforms on the UART0.
- config DEBUG_SUNXI_UART1
- bool "Kernel low-level debugging messages via sunXi UART1"
- depends on ARCH_SUNXI
- help
- Say Y here if you want kernel low-level debugging support
- on Allwinner A1X based platforms on the UART1.
- config DEBUG_TEGRA_UART
- depends on ARCH_TEGRA
- bool "Use Tegra UART for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on Tegra based platforms.
- config DEBUG_SIRFPRIMA2_UART1
- bool "Kernel low-level debugging messages via SiRFprimaII UART1"
- depends on ARCH_PRIMA2
- help
- Say Y here if you want the debug print routines to direct
- their output to the uart1 port on SiRFprimaII devices.
- config DEBUG_SIRFMARCO_UART1
- bool "Kernel low-level debugging messages via SiRFmarco UART1"
- depends on ARCH_MARCO
- help
- Say Y here if you want the debug print routines to direct
- their output to the uart1 port on SiRFmarco devices.
- config DEBUG_STI_UART
- depends on ARCH_STI
- bool "Use StiH415/416 ASC for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on StiH415/416 based platforms like B2000, B2020.
- It support UART2 and SBC_UART1.
- If unsure, say N.
- config DEBUG_U300_UART
- bool "Kernel low-level debugging messages via U300 UART0"
- depends on ARCH_U300
- help
- Say Y here if you want the debug print routines to direct
- their output to the uart port on U300 devices.
- config DEBUG_UX500_UART
- depends on ARCH_U8500
- bool "Use Ux500 UART for low-level debug"
- help
- Say Y here if you want kernel low-level debugging support
- on Ux500 based platforms.
- config DEBUG_VEXPRESS_UART0_DETECT
- bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
- depends on ARCH_VEXPRESS && CPU_CP15_MMU
- help
- This option enables a simple heuristic which tries to determine
- the motherboard's memory map variant (original or RS1) and then
- choose the relevant UART0 base address.
- Note that this will only work with standard A-class core tiles,
- and may fail with non-standard SMM or custom software models.
- config DEBUG_VEXPRESS_UART0_CA9
- bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
- depends on ARCH_VEXPRESS
- help
- This option selects UART0 at 0x10009000. Except for custom models,
- this applies only to the V2P-CA9 tile.
- config DEBUG_VEXPRESS_UART0_RS1
- bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
- depends on ARCH_VEXPRESS
- help
- This option selects UART0 at 0x1c090000. This applies to most
- of the tiles using the RS1 memory map, including all new A-class
- core tiles, FPGA-based SMMs and software models.
- config DEBUG_VEXPRESS_UART0_CRX
- bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
- depends on ARCH_VEXPRESS && !MMU
- help
- This option selects UART0 at 0xb0090000. This is appropriate for
- Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
- config DEBUG_VT8500_UART0
- bool "Use UART0 on VIA/Wondermedia SoCs"
- depends on ARCH_VT8500
- help
- This option selects UART0 on VIA/Wondermedia System-on-a-chip
- devices, including VT8500, WM8505, WM8650 and WM8850.
- config DEBUG_LL_UART_NONE
- bool "No low-level debugging UART"
- depends on !ARCH_MULTIPLATFORM
- help
- Say Y here if your platform doesn't provide a UART option
- below. This relies on your platform choosing the right UART
- definition internally in order for low-level debugging to
- work.
- config DEBUG_ICEDCC
- bool "Kernel low-level debugging via EmbeddedICE DCC channel"
- help
- Say Y here if you want the debug print routines to direct
- their output to the EmbeddedICE macrocell's DCC channel using
- co-processor 14. This is known to work on the ARM9 style ICE
- channel and on the XScale with the PEEDI.
- Note that the system will appear to hang during boot if there
- is nothing connected to read from the DCC.
- config DEBUG_SEMIHOSTING
- bool "Kernel low-level debug output via semihosting I/O"
- help
- Semihosting enables code running on an ARM target to use
- the I/O facilities on a host debugger/emulator through a
- simple SVC call. The host debugger or emulator must have
- semihosting enabled for the special svc call to be trapped
- otherwise the kernel will crash.
- This is known to work with OpenOCD, as well as
- ARM's Fast Models, or any other controlling environment
- that implements semihosting.
- For more details about semihosting, please see
- chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
- endchoice
- config DEBUG_EXYNOS_UART
- bool
- config DEBUG_IMX_UART_PORT
- int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
- DEBUG_IMX25_UART || \
- DEBUG_IMX21_IMX27_UART || \
- DEBUG_IMX31_UART || \
- DEBUG_IMX35_UART || \
- DEBUG_IMX51_UART || \
- DEBUG_IMX53_UART || \
- DEBUG_IMX6Q_UART || \
- DEBUG_IMX6SL_UART
- default 1
- depends on ARCH_MXC
- help
- Choose UART port on which kernel low-level debug messages
- should be output.
- choice
- prompt "Low-level debug console UART"
- depends on DEBUG_OMAP2PLUS_UART
- config DEBUG_OMAP2UART1
- bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
- help
- This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
- omap3 torpedo and 3530 lv som.
- config DEBUG_OMAP2UART2
- bool "OMAP2/3/4 UART2"
- config DEBUG_OMAP2UART3
- bool "OMAP2 UART3 (n8x0)"
- config DEBUG_OMAP3UART3
- bool "OMAP3 UART3 (most omap3 boards)"
- help
- This covers at least cm_t3x, beagle, crane, devkit8000,
- igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
- and 3517evm.
- config DEBUG_OMAP4UART3
- bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
- config DEBUG_OMAP3UART4
- bool "OMAP36XX UART4"
- config DEBUG_OMAP4UART4
- bool "OMAP4/5 UART4"
- config DEBUG_TI81XXUART1
- bool "TI81XX UART1 (ti8148evm)"
- config DEBUG_TI81XXUART2
- bool "TI81XX UART2"
- config DEBUG_TI81XXUART3
- bool "TI81XX UART3 (ti8168evm)"
- config DEBUG_AM33XXUART1
- bool "AM33XX UART1"
- config DEBUG_ZOOM_UART
- bool "Zoom2/3 UART"
- endchoice
- choice
- prompt "Low-level debug console UART"
- depends on DEBUG_ROCKCHIP_UART
- config DEBUG_RK29_UART0
- bool "RK29 UART0"
- config DEBUG_RK29_UART1
- bool "RK29 UART1"
- config DEBUG_RK29_UART2
- bool "RK29 UART2"
- config DEBUG_RK3X_UART0
- bool "RK3X UART0"
- config DEBUG_RK3X_UART1
- bool "RK3X UART1"
- config DEBUG_RK3X_UART2
- bool "RK3X UART2"
- config DEBUG_RK3X_UART3
- bool "RK3X UART3"
- endchoice
- choice
- prompt "Low-level debug console UART"
- depends on DEBUG_LL && DEBUG_TEGRA_UART
- config TEGRA_DEBUG_UART_AUTO_ODMDATA
- bool "Via ODMDATA"
- help
- Automatically determines which UART to use for low-level debug based
- on the ODMDATA value. This value is part of the BCT, and is written
- to the boot memory device using nvflash, or other flashing tool.
- When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
- 0/1/2/3/4 are UART A/B/C/D/E.
- config TEGRA_DEBUG_UARTA
- bool "UART A"
- config TEGRA_DEBUG_UARTB
- bool "UART B"
- config TEGRA_DEBUG_UARTC
- bool "UART C"
- config TEGRA_DEBUG_UARTD
- bool "UART D"
- config TEGRA_DEBUG_UARTE
- bool "UART E"
- endchoice
- choice
- prompt "Low-level debug console UART"
- depends on DEBUG_LL && DEBUG_STI_UART
- config STIH41X_DEBUG_ASC2
- bool "ASC2 UART"
- help
- Say Y here if you want kernel low-level debugging support
- on STiH415/416 based platforms like b2000, which has
- default UART wired up to ASC2.
- If unsure, say N.
- config STIH41X_DEBUG_SBC_ASC1
- bool "SBC ASC1 UART"
- help
- Say Y here if you want kernel low-level debugging support
- on STiH415/416 based platforms like b2020. which has
- default UART wired up to SBC ASC1.
- If unsure, say N.
- endchoice
- config DEBUG_LL_INCLUDE
- string
- default "debug/bcm2835.S" if DEBUG_BCM2835
- default "debug/cns3xxx.S" if DEBUG_CNS3XXX
- default "debug/exynos.S" if DEBUG_EXYNOS_UART
- default "debug/highbank.S" if DEBUG_HIGHBANK_UART
- default "debug/icedcc.S" if DEBUG_ICEDCC
- default "debug/imx.S" if DEBUG_IMX1_UART || \
- DEBUG_IMX25_UART || \
- DEBUG_IMX21_IMX27_UART || \
- DEBUG_IMX31_UART || \
- DEBUG_IMX35_UART || \
- DEBUG_IMX51_UART || \
- DEBUG_IMX53_UART ||\
- DEBUG_IMX6Q_UART || \
- DEBUG_IMX6SL_UART
- default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
- DEBUG_KEYSTONE_UART1
- default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
- DEBUG_MVEBU_UART_ALTERNATE
- default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
- default "debug/nomadik.S" if DEBUG_NOMADIK_UART
- default "debug/nspire.S" if DEBUG_NSPIRE_CX_UART || \
- DEBUG_NSPIRE_CLASSIC_UART
- default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
- default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
- default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
- DEBUG_MMP_UART3
- default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART
- default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
- default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
- default "debug/sti.S" if DEBUG_STI_UART
- default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
- default "debug/tegra.S" if DEBUG_TEGRA_UART
- default "debug/u300.S" if DEBUG_U300_UART
- default "debug/ux500.S" if DEBUG_UX500_UART
- default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
- DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 || \
- DEBUG_VEXPRESS_UART0_CRX
- default "debug/vt8500.S" if DEBUG_VT8500_UART0
- default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
- default "mach/debug-macro.S"
- config DEBUG_UNCOMPRESS
- bool
- depends on ARCH_MULTIPLATFORM
- default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
- !DEBUG_TEGRA_UART
- help
- This option influences the normal decompressor output for
- multiplatform kernels. Normally, multiplatform kernels disable
- decompressor output because it is not possible to know where to
- send the decompressor output.
- When this option is set, the selected DEBUG_LL output method
- will be re-used for normal decompressor output on multiplatform
- kernels.
-
- config UNCOMPRESS_INCLUDE
- string
- default "debug/uncompress.h" if ARCH_MULTIPLATFORM
- default "mach/uncompress.h"
- config EARLY_PRINTK
- bool "Early printk"
- depends on DEBUG_LL
- help
- Say Y here if you want to have an early console using the
- kernel low-level debugging functions. Add earlyprintk to your
- kernel parameters to enable this console.
- config OC_ETM
- bool "On-chip ETM and ETB"
- depends on ARM_AMBA
- help
- Enables the on-chip embedded trace macrocell and embedded trace
- buffer driver that will allow you to collect traces of the
- kernel code.
- config ARM_KPROBES_TEST
- tristate "Kprobes test module"
- depends on KPROBES && MODULES
- help
- Perform tests of kprobes API and instruction set simulation.
- config PID_IN_CONTEXTIDR
- bool "Write the current PID to the CONTEXTIDR register"
- depends on CPU_COPY_V6
- help
- Enabling this option causes the kernel to write the current PID to
- the PROCID field of the CONTEXTIDR register, at the expense of some
- additional instructions during context switch. Say Y here only if you
- are planning to use hardware trace tools with this kernel.
- endmenu
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