Kconfig.debug 45.1 KB
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menu "Kernel hacking"

source "lib/Kconfig.debug"

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config ARM_PTDUMP
	bool "Export kernel pagetable layout to userspace via debugfs"
	depends on DEBUG_KERNEL
	select DEBUG_FS
	---help---
	  Say Y here if you want to show the kernel pagetable layout in a
	  debugfs file. This information is only useful for kernel developers
	  who are working in architecture specific areas of the kernel.
	  It is probably not a good idea to enable this feature in a production
	  kernel.
	  If in doubt, say "N"

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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.

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# RMK wants arm kernels compiled with frame pointers or stack unwinding.
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# 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
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	depends on !THUMB2_KERNEL
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	default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
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	help
	  If you say N here, the resulting kernel will be slightly smaller and
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	  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
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	bool "Enable stack unwinding support (EXPERIMENTAL)"
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	depends on AEABI
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	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.
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config OLD_MCOUNT
	bool
	depends on FUNCTION_TRACER && FRAME_POINTER
	default y

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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
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	bool "Kernel low-level debugging functions (read help!)"
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	depends on DEBUG_KERNEL
	help
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	  Say Y here to include definitions of printascii, printch, printhex
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	  in the kernel.  This is helpful if you are debugging code that
	  executes before the console is initialized.

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	  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.

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choice
	prompt "Kernel low-level debugging port"
	depends on DEBUG_LL

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	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
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		bool "Kernel low-level debugging on 9263 and 9g45"
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		depends on HAVE_AT91_DBGU1

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	config AT91_DEBUG_LL_DBGU2
		bool "Kernel low-level debugging on sama5d4"
		depends on HAVE_AT91_DBGU2

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	config DEBUG_BCM2835
		bool "Kernel low-level debugging on BCM2835 PL011 UART"
		depends on ARCH_BCM2835
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		select DEBUG_UART_PL01X
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	config DEBUG_BCM_5301X
		bool "Kernel low-level debugging on BCM5301X UART1"
		depends on ARCH_BCM_5301X
		select DEBUG_UART_PL01X

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	config DEBUG_BCM_KONA_UART
		bool "Kernel low-level debugging messages via BCM KONA UART"
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		depends on ARCH_BCM_MOBILE
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		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on Broadcom SoC platforms.
		  This low level debug works for Broadcom
		  mobile SoCs in the Kona family of chips (e.g. bcm28155,
		  bcm11351, etc...)

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	config DEBUG_BCM63XX
		bool "Kernel low-level debugging on BCM63XX UART"
		depends on ARCH_BCM_63XX
		select DEBUG_UART_BCM63XX

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	config DEBUG_BERLIN_UART
		bool "Marvell Berlin SoC Debug UART"
		depends on ARCH_BERLIN
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on Marvell Berlin SoC based platforms.

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	config DEBUG_BRCMSTB_UART
		bool "Use BRCMSTB UART for low-level debug"
		depends on ARCH_BRCMSTB
		select DEBUG_UART_8250
		help
		  Say Y here if you want the debug print routines to direct
		  their output to the first serial port on these devices.

		  If you have a Broadcom STB chip and would like early print
		  messages to appear over the UART, select this option.

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	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.
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	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.

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	config DEBUG_CNS3XXX
		bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
		depends on ARCH_CNS3XXX
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want the debug print routines to direct
                  their output to the CNS3xxx UART0.

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	config DEBUG_DAVINCI_DA8XX_UART1
		bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
		depends on ARCH_DAVINCI_DA8XX
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		select DEBUG_UART_8250
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		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
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		select DEBUG_UART_8250
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		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
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want the debug print routines to direct
		  their output to UART0 serial port on DaVinci DMx devices.

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	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.

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	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.

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	config DEBUG_HI3620_UART
		bool "Hisilicon HI3620 Debug UART"
		depends on ARCH_HI3xxx
		select DEBUG_UART_PL01X
		help
		  Say Y here if you want kernel low-level debugging support
		  on HI3620 UART.

	config DEBUG_HI3716_UART
		bool "Hisilicon Hi3716 Debug UART"
		depends on ARCH_HI3xxx
		select DEBUG_UART_PL01X
		help
		  Say Y here if you want kernel low-level debugging support
		  on HI3716 UART.

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	config DEBUG_HIGHBANK_UART
		bool "Kernel low-level debugging messages via Highbank UART"
		depends on ARCH_HIGHBANK
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		select DEBUG_UART_PL01X
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		help
		  Say Y here if you want the debug print routines to direct
		  their output to the UART on Highbank based devices.

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	config DEBUG_HIP04_UART
		bool "Hisilicon HiP04 Debug UART"
		depends on ARCH_HIP04
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on HIP04 UART.

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	config DEBUG_HIX5HD2_UART
		bool "Hisilicon Hix5hd2 Debug UART"
		depends on ARCH_HIX5HD2
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		select DEBUG_UART_PL01X
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		help
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		  Say Y here if you want kernel low-level debugging support
		  on Hix5hd2 UART.
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	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
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		select DEBUG_UART_PL01X
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		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
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		select DEBUG_UART_PL01X
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		help
		  Say Y here if you want kernel low-level debugging support
		  on i.MX28.

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	config DEBUG_IMX31_UART
		bool "i.MX31 Debug UART"
		depends on SOC_IMX31
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		help
		  Say Y here if you want kernel low-level debugging support
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		  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.
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	config DEBUG_IMX50_UART
		bool "i.MX50 Debug UART"
		depends on SOC_IMX50
		help
		  Say Y here if you want kernel low-level debugging support
		  on i.MX50.

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	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.

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	config DEBUG_IMX53_UART
		bool "i.MX53 Debug UART"
		depends on SOC_IMX53
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		help
		  Say Y here if you want kernel low-level debugging support
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		  on i.MX53.
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	config DEBUG_IMX6Q_UART
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		bool "i.MX6Q/DL Debug UART"
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		depends on SOC_IMX6Q
		help
		  Say Y here if you want kernel low-level debugging support
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		  on i.MX6Q/DL.
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	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.

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	config DEBUG_IMX6SX_UART
		bool "i.MX6SX Debug UART"
		depends on SOC_IMX6SX
		help
		  Say Y here if you want kernel low-level debugging support
		  on i.MX6SX.

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	config DEBUG_KEYSTONE_UART0
		bool "Kernel low-level debugging on KEYSTONE2 using UART0"
		depends on ARCH_KEYSTONE
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		select DEBUG_UART_8250
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		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
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want the debug print routines to direct
		  their output to UART1 serial port on KEYSTONE2 devices.

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	config DEBUG_MESON_UARTAO
		bool "Kernel low-level debugging via Meson6 UARTAO"
		depends on ARCH_MESON
		help
		  Say Y here if you want kernel low-lever debugging support
		  on Amlogic Meson6 based platforms on the UARTAO.

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	config DEBUG_MMP_UART2
		bool "Kernel low-level debugging message via MMP UART2"
		depends on ARCH_MMP
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		select DEBUG_UART_8250
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		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
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want kernel low-level debugging support
		  on MMP UART3.

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	config DEBUG_MSM_UART
		bool "Kernel low-level debugging messages via MSM UART"
		depends on ARCH_MSM
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		help
		  Say Y here if you want the debug print routines to direct
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		  their output to the serial port on MSM devices.
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		  ARCH                DEBUG_UART_PHYS   DEBUG_UART_BASE   #
		  MSM7X00A, QSD8X50   0xa9a00000        0xe1000000        UART1
		  MSM7X00A, QSD8X50   0xa9b00000        0xe1000000        UART2
		  MSM7X00A, QSD8X50   0xa9c00000        0xe1000000        UART3
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		  MSM7X30             0xaca00000        0xe1000000        UART1
		  MSM7X30             0xacb00000        0xe1000000        UART2
		  MSM7X30             0xacc00000        0xe1000000        UART3
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		  Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
		  options based on your needs.
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	config DEBUG_QCOM_UARTDM
		bool "Kernel low-level debugging messages via QCOM UARTDM"
		depends on ARCH_QCOM
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		help
		  Say Y here if you want the debug print routines to direct
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		  their output to the serial port on Qualcomm devices.
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		  ARCH      DEBUG_UART_PHYS   DEBUG_UART_BASE
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		  APQ8084   0xf995e000        0xfa75e000
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		  MSM8X60   0x19c40000        0xf0040000
		  MSM8960   0x16440000        0xf0040000
		  MSM8974   0xf991e000        0xfa71e000

		  Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
		  options based on your needs.
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	config DEBUG_MVEBU_UART
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		bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
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		depends on ARCH_MVEBU
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want kernel low-level debugging support
		  on MVEBU based platforms.

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		  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
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		select DEBUG_UART_8250
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		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.

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	config DEBUG_VF_UART
		bool "Vybrid UART"
		depends on SOC_VF610
		help
		  Say Y here if you want kernel low-level debugging support
		  on Vybrid based platforms.

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	config DEBUG_NOMADIK_UART
		bool "Kernel low-level debugging messages via NOMADIK UART"
		depends on ARCH_NOMADIK
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		select DEBUG_UART_PL01X
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		help
		  Say Y here if you want kernel low-level debugging support
		  on NOMADIK based platforms.

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	config DEBUG_NSPIRE_CLASSIC_UART
		bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
		depends on ARCH_NSPIRE
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		select DEBUG_UART_8250
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		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
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		select DEBUG_UART_PL01X
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		help
		  Say Y here if you want kernel low-level debugging support
		  on TI-NSPIRE CX models.

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	config DEBUG_OMAP2UART1
		bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
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		depends on ARCH_OMAP2PLUS
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		select DEBUG_OMAP2PLUS_UART
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		help
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		  This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
		  omap3 torpedo and 3530 lv som.

	config DEBUG_OMAP2UART2
		bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_OMAP2UART3
		bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_OMAP3UART3
		bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART
		help
		  This covers at least cm_t3x, beagle, crane, devkit8000,
		  igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
		  and 3517evm.

	config DEBUG_OMAP4UART3
		bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_OMAP3UART4
		bool "Kernel low-level debugging messages via OMAP36XX UART4"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_OMAP4UART4
		bool "Kernel low-level debugging messages via OMAP4/5 UART4"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_TI81XXUART1
		bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_TI81XXUART2
		bool "Kernel low-level debugging messages via TI81XX UART2"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_TI81XXUART3
		bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_AM33XXUART1
		bool "Kernel low-level debugging messages via AM33XX UART1"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART

	config DEBUG_ZOOM_UART
		bool "Kernel low-level debugging messages via Zoom2/3 UART"
		depends on ARCH_OMAP2PLUS
		select DEBUG_OMAP2PLUS_UART
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	config DEBUG_PICOXCELL_UART
		depends on ARCH_PICOXCELL
		bool "Use PicoXcell UART for low-level debug"
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want kernel low-level debugging support
		  on PicoXcell based platforms.

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	config DEBUG_PXA_UART1
		depends on ARCH_PXA
		bool "Use PXA UART1 for low-level debug"
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want kernel low-level debugging support
		  on PXA UART1.

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	config DEBUG_REALVIEW_STD_PORT
		bool "RealView Default UART"
		depends on ARCH_REALVIEW
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		select DEBUG_UART_PL01X
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		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
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		select DEBUG_UART_PL01X
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		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.

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	config DEBUG_RK29_UART0
		bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
		depends on ARCH_ROCKCHIP
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		select DEBUG_UART_8250
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		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK29_UART1
		bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
		depends on ARCH_ROCKCHIP
614
		select DEBUG_UART_8250
615 616 617 618 619 620 621
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK29_UART2
		bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
		depends on ARCH_ROCKCHIP
622
		select DEBUG_UART_8250
623 624 625 626 627
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK3X_UART0
628
		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
629
		depends on ARCH_ROCKCHIP
630
		select DEBUG_UART_8250
631 632 633 634 635
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK3X_UART1
636
		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
637
		depends on ARCH_ROCKCHIP
638
		select DEBUG_UART_8250
639 640 641 642 643
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK3X_UART2
644
		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
645
		depends on ARCH_ROCKCHIP
646
		select DEBUG_UART_8250
647 648 649 650 651
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

	config DEBUG_RK3X_UART3
652
		bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
653
		depends on ARCH_ROCKCHIP
654
		select DEBUG_UART_8250
655 656 657 658
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip based platforms.

659 660 661 662 663 664 665 666
	config DEBUG_RK32_UART2
		bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
		depends on ARCH_ROCKCHIP
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on Rockchip RK32xx based platforms.

667 668
	config DEBUG_S3C_UART0
		depends on PLAT_SAMSUNG
669
		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
670
		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
671
		select DEBUG_S5PV210_UART if ARCH_S5PV210
672
		bool "Use Samsung S3C UART 0 for low-level debug"
673 674
		help
		  Say Y here if you want the debug print routines to direct
675 676
		  their output to UART 0. The port must have been initialised
		  by the boot-loader before use.
677

678 679
	config DEBUG_S3C_UART1
		depends on PLAT_SAMSUNG
680
		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
681
		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
682
		select DEBUG_S5PV210_UART if ARCH_S5PV210
683
		bool "Use Samsung S3C UART 1 for low-level debug"
684 685
		help
		  Say Y here if you want the debug print routines to direct
686 687
		  their output to UART 1. The port must have been initialised
		  by the boot-loader before use.
688

689 690
	config DEBUG_S3C_UART2
		depends on PLAT_SAMSUNG
691
		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
692
		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
693
		select DEBUG_S5PV210_UART if ARCH_S5PV210
694
		bool "Use Samsung S3C UART 2 for low-level debug"
695 696
		help
		  Say Y here if you want the debug print routines to direct
697 698
		  their output to UART 2. The port must have been initialised
		  by the boot-loader before use.
699

700
	config DEBUG_S3C_UART3
701 702 703
		depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
		select DEBUG_S5PV210_UART if ARCH_S5PV210
704
		bool "Use Samsung S3C UART 3 for low-level debug"
705 706 707 708 709
		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.

710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
	config DEBUG_S3C2410_UART0
		depends on ARCH_S3C24XX
		select DEBUG_S3C2410_UART
		bool "Use S3C2410/S3C2412 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.

	config DEBUG_S3C2410_UART1
		depends on ARCH_S3C24XX
		select DEBUG_S3C2410_UART
		bool "Use S3C2410/S3C2412 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.

	config DEBUG_S3C2410_UART2
		depends on ARCH_S3C24XX
		select DEBUG_S3C2410_UART
		bool "Use S3C2410/S3C2412 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.

737 738 739 740 741 742 743 744
	config DEBUG_SA1100
		depends on ARCH_SA1100
		bool "Use SA1100 UARTs for low-level debug"
		help
		  Say Y here if you want kernel low-level debugging support
		  on SA-11x0 UART ports. The kernel will check for the first
		  enabled UART in a sequence 3-1-2.

745 746 747
	config DEBUG_SOCFPGA_UART
		depends on ARCH_SOCFPGA
		bool "Use SOCFPGA UART for low-level debug"
748
		select DEBUG_UART_8250
749 750 751 752
		help
		  Say Y here if you want kernel low-level debugging support
		  on SOCFPGA based platforms.

753 754 755 756 757 758 759 760
	config DEBUG_SUN9I_UART0
		bool "Kernel low-level debugging messages via sun9i UART0"
		depends on MACH_SUN9I
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on Allwinner A80 based platforms on the UART0.

761 762 763
	config DEBUG_SUNXI_UART0
		bool "Kernel low-level debugging messages via sunXi UART0"
		depends on ARCH_SUNXI
764
		select DEBUG_UART_8250
765 766 767 768
		help
		  Say Y here if you want kernel low-level debugging support
		  on Allwinner A1X based platforms on the UART0.

769 770 771
	config DEBUG_SUNXI_UART1
		bool "Kernel low-level debugging messages via sunXi UART1"
		depends on ARCH_SUNXI
772
		select DEBUG_UART_8250
773 774 775 776
		help
		  Say Y here if you want kernel low-level debugging support
		  on Allwinner A1X based platforms on the UART1.

777 778 779 780 781 782 783 784
	config DEBUG_SUNXI_R_UART
		bool "Kernel low-level debugging messages via sunXi R_UART"
		depends on MACH_SUN6I || MACH_SUN8I
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  on Allwinner A31/A23 based platforms on the R_UART.

785 786
	config TEGRA_DEBUG_UART_AUTO_ODMDATA
		bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
787
		depends on ARCH_TEGRA
788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
		select DEBUG_TEGRA_UART
		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 "Kernel low-level debugging messages via Tegra UART A"
		depends on ARCH_TEGRA
		select DEBUG_TEGRA_UART
		help
		  Say Y here if you want kernel low-level debugging support
		  on Tegra based platforms.

	config TEGRA_DEBUG_UARTB
		bool "Kernel low-level debugging messages via Tegra UART B"
		depends on ARCH_TEGRA
		select DEBUG_TEGRA_UART
		help
		  Say Y here if you want kernel low-level debugging support
		  on Tegra based platforms.

	config TEGRA_DEBUG_UARTC
		bool "Kernel low-level debugging messages via Tegra UART C"
		depends on ARCH_TEGRA
		select DEBUG_TEGRA_UART
		help
		  Say Y here if you want kernel low-level debugging support
		  on Tegra based platforms.

	config TEGRA_DEBUG_UARTD
		bool "Kernel low-level debugging messages via Tegra UART D"
		depends on ARCH_TEGRA
		select DEBUG_TEGRA_UART
		help
		  Say Y here if you want kernel low-level debugging support
		  on Tegra based platforms.

	config TEGRA_DEBUG_UARTE
		bool "Kernel low-level debugging messages via Tegra UART E"
		depends on ARCH_TEGRA
		select DEBUG_TEGRA_UART
833 834 835 836
		help
		  Say Y here if you want kernel low-level debugging support
		  on Tegra based platforms.

837 838 839 840 841 842 843 844 845 846 847 848 849 850
	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.

851 852 853 854 855 856 857 858 859 860 861 862 863
	config STIH41X_DEBUG_ASC2
		bool "Use StiH415/416 ASC2 UART for low-level debug"
		depends on ARCH_STI
		select DEBUG_STI_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 "Use StiH415/416 SBC ASC1 UART for low-level debug"
864
		depends on ARCH_STI
865
		select DEBUG_STI_UART
866 867
		help
		  Say Y here if you want kernel low-level debugging support
868 869
		  on STiH415/416 based platforms like b2020. which has
		  default UART wired up to SBC ASC1.
870 871 872

		  If unsure, say N.

873 874 875
	config DEBUG_U300_UART
		bool "Kernel low-level debugging messages via U300 UART0"
		depends on ARCH_U300
876
		select DEBUG_UART_PL01X
877 878 879 880
		help
		  Say Y here if you want the debug print routines to direct
		  their output to the uart port on U300 devices.

881 882 883 884 885 886 887
	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.

888 889 890 891 892 893 894 895
	config DEBUG_MT6589_UART0
		bool "Mediatek mt6589 UART0"
		depends on ARCH_MEDIATEK
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  for Mediatek mt6589 based platforms on UART0.

896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911
	config DEBUG_MT8127_UART0
		bool "Mediatek mt8127 UART0"
		depends on ARCH_MEDIATEK
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  for Mediatek mt8127 based platforms on UART0.

	config DEBUG_MT8135_UART3
		bool "Mediatek mt8135 UART3"
		depends on ARCH_MEDIATEK
		select DEBUG_UART_8250
		help
		  Say Y here if you want kernel low-level debugging support
		  for Mediatek mt8135 based platforms on UART3.

912 913 914 915 916 917 918 919 920 921 922 923 924 925
	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
926
		select DEBUG_UART_PL01X
927 928 929 930 931 932 933
		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
934
		select DEBUG_UART_PL01X
935 936 937 938 939
		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.

940 941 942
	config DEBUG_VEXPRESS_UART0_CRX
		bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
		depends on ARCH_VEXPRESS && !MMU
943
		select DEBUG_UART_PL01X
944 945 946 947
		help
		  This option selects UART0 at 0xb0090000. This is appropriate for
		  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7

948 949 950 951 952 953 954
	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.

955 956
	config DEBUG_LL_UART_NONE
		bool "No low-level debugging UART"
R
Rob Herring 已提交
957
		depends on !ARCH_MULTIPLATFORM
958
		help
959
		  Say Y here if your platform doesn't provide a UART option
960
		  above. This relies on your platform choosing the right UART
961 962
		  definition internally in order for low-level debugging to
		  work.
963

964 965
	config DEBUG_ICEDCC
		bool "Kernel low-level debugging via EmbeddedICE DCC channel"
966 967
		help
		  Say Y here if you want the debug print routines to direct
968 969 970 971 972 973
		  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.
974

975
	config DEBUG_SEMIHOSTING
976
		bool "Kernel low-level debug output via semihosting I/O"
977
		help
978 979
		  Semihosting enables code running on an ARM target to use
		  the I/O facilities on a host debugger/emulator through a
980
		  simple SVC call. The host debugger or emulator must have
981 982
		  semihosting enabled for the special svc call to be trapped
		  otherwise the kernel will crash.
983

984
		  This is known to work with OpenOCD, as well as
985 986
		  ARM's Fast Models, or any other controlling environment
		  that implements semihosting.
987

988 989
		  For more details about semihosting, please see
		  chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
990

991 992 993 994 995 996 997 998 999 1000 1001 1002 1003
	config DEBUG_LL_UART_8250
		bool "Kernel low-level debugging via 8250 UART"
		help
		  Say Y here if you wish the debug print routes to direct
		  their output to an 8250 UART.  You can use this option
		  to provide the parameters for the 8250 UART rather than
		  selecting one of the platform specific options above if
		  you know the parameters for the port.

		  This option is preferred over the platform specific
		  options; the platform specific options are deprecated
		  and will be soon removed.

1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017
	config DEBUG_LL_UART_EFM32
		bool "Kernel low-level debugging via efm32 UART"
		depends on ARCH_EFM32
		help
		  Say Y here if you want the debug print routines to direct
		  their output to an UART or USART port on efm32 based
		  machines. Use the following addresses for DEBUG_UART_PHYS:

		    0x4000c000 | USART0
		    0x4000c400 | USART1
		    0x4000c800 | USART2
		    0x4000e000 | UART0
		    0x4000e400 | UART1

1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
	config DEBUG_LL_UART_PL01X
		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
		help
		  Say Y here if you wish the debug print routes to direct
		  their output to a PL01x Primecell UART.  You can use
		  this option to provide the parameters for the UART
		  rather than selecting one of the platform specific
		  options above if you know the parameters for the port.

		  This option is preferred over the platform specific
		  options; the platform specific options are deprecated
		  and will be soon removed.

1031 1032
endchoice

1033 1034 1035
config DEBUG_EXYNOS_UART
	bool

1036 1037
config DEBUG_S3C2410_UART
	bool
1038 1039 1040 1041
	select DEBUG_S3C24XX_UART

config DEBUG_S3C24XX_UART
	bool
1042

1043 1044 1045
config DEBUG_S5PV210_UART
	bool

1046 1047 1048 1049
config DEBUG_OMAP2PLUS_UART
	bool
	depends on ARCH_OMAP2PLUS

1050 1051 1052 1053 1054 1055
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 || \
1056
						DEBUG_IMX50_UART || \
1057
						DEBUG_IMX51_UART || \
1058
						DEBUG_IMX53_UART || \
1059
						DEBUG_IMX6Q_UART || \
1060 1061
						DEBUG_IMX6SL_UART || \
						DEBUG_IMX6SX_UART
1062
	default 1
1063
	depends on ARCH_MXC
1064 1065 1066 1067
	help
	  Choose UART port on which kernel low-level debug messages
	  should be output.

1068 1069 1070 1071 1072 1073 1074 1075 1076
config DEBUG_VF_UART_PORT
	int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
	default 1
	range 0 3
	depends on SOC_VF610
	help
	  Choose UART port on which kernel low-level debug messages
	  should be output.

1077 1078 1079
config DEBUG_TEGRA_UART
	bool
	depends on ARCH_TEGRA
1080

1081 1082 1083
config DEBUG_STI_UART
	bool
	depends on ARCH_STI
1084

1085 1086
config DEBUG_LL_INCLUDE
	string
1087
	default "debug/sa1100.S" if DEBUG_SA1100
1088
	default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
1089
	default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
1090
	default "debug/meson.S" if DEBUG_MESON_UARTAO
1091
	default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
1092
	default "debug/exynos.S" if DEBUG_EXYNOS_UART
1093
	default "debug/efm32.S" if DEBUG_LL_UART_EFM32
1094
	default "debug/icedcc.S" if DEBUG_ICEDCC
1095 1096 1097
	default "debug/imx.S" if DEBUG_IMX1_UART || \
				 DEBUG_IMX25_UART || \
				 DEBUG_IMX21_IMX27_UART || \
1098 1099
				 DEBUG_IMX31_UART || \
				 DEBUG_IMX35_UART || \
1100
				 DEBUG_IMX50_UART || \
1101
				 DEBUG_IMX51_UART || \
F
Fabio Estevam 已提交
1102
				 DEBUG_IMX53_UART ||\
1103
				 DEBUG_IMX6Q_UART || \
1104 1105
				 DEBUG_IMX6SL_UART || \
				 DEBUG_IMX6SX_UART
1106
	default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
1107
	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
1108
	default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
1109
	default "debug/s5pv210.S" if DEBUG_S5PV210_UART
1110
	default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
1111
	default "debug/sti.S" if DEBUG_STI_UART
1112 1113
	default "debug/tegra.S" if DEBUG_TEGRA_UART
	default "debug/ux500.S" if DEBUG_UX500_UART
1114
	default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
1115
	default "debug/vf.S" if DEBUG_VF_UART
1116
	default "debug/vt8500.S" if DEBUG_VT8500_UART0
1117
	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
1118
	default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
1119 1120
	default "mach/debug-macro.S"

1121
# Compatibility options for PL01x
1122 1123 1124
config DEBUG_UART_PL01X
	def_bool ARCH_EP93XX || \
		ARCH_INTEGRATOR || \
1125 1126 1127
		ARCH_SPEAR3XX || \
		ARCH_SPEAR6XX || \
		ARCH_SPEAR13XX || \
1128 1129
		ARCH_VERSATILE

1130
# Compatibility options for 8250
1131
config DEBUG_UART_8250
1132 1133 1134
	def_bool ARCH_DOVE || ARCH_EBSA110 || \
		(FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
		ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
1135
		ARCH_IOP33X || ARCH_IXP4XX || \
1136 1137
		ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC

1138 1139 1140 1141
# Compatibility options for BCM63xx
config DEBUG_UART_BCM63XX
	def_bool ARCH_BCM_63XX

1142 1143
config DEBUG_UART_PHYS
	hex "Physical base address of debug UART"
1144
	default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
1145 1146
	default 0x01c28000 if DEBUG_SUNXI_UART0
	default 0x01c28400 if DEBUG_SUNXI_UART1
1147 1148
	default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
	default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
1149
	default 0x01f02800 if DEBUG_SUNXI_R_UART
1150 1151
	default 0x02530c00 if DEBUG_KEYSTONE_UART0
	default 0x02531000 if DEBUG_KEYSTONE_UART1
1152
	default 0x03010fe0 if ARCH_RPC
1153
	default 0x07000000 if DEBUG_SUN9I_UART0
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1154
	default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
1155 1156
				DEBUG_VEXPRESS_UART0_CA9
	default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
1157 1158
	default 0x10124000 if DEBUG_RK3X_UART0
	default 0x10126000 if DEBUG_RK3X_UART1
1159 1160
	default 0x101f1000 if ARCH_VERSATILE
	default 0x101fb000 if DEBUG_NOMADIK_UART
1161
	default 0x11002000 if DEBUG_MT8127_UART0
1162
	default 0x11006000 if DEBUG_MT6589_UART0
1163
	default 0x11009000 if DEBUG_MT8135_UART3
1164
	default 0x16000000 if ARCH_INTEGRATOR
1165
	default 0x18000300 if DEBUG_BCM_5301X
1166
	default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
1167 1168 1169
	default 0x20060000 if DEBUG_RK29_UART0
	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
	default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1170
	default 0x20201000 if DEBUG_BCM2835
1171
	default 0x3e000000 if DEBUG_BCM_KONA_UART
1172
	default 0x4000e400 if DEBUG_LL_UART_EFM32
1173 1174 1175
	default 0x40090000 if ARCH_LPC32XX
	default 0x40100000 if DEBUG_PXA_UART1
	default 0x42000000 if ARCH_GEMINI
1176 1177 1178 1179 1180 1181
	default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
				DEBUG_S3C2410_UART0)
	default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
				DEBUG_S3C2410_UART1)
	default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
				DEBUG_S3C2410_UART2)
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1182
	default 0x78000000 if DEBUG_CNS3XXX
1183
	default 0x7c0003f8 if FOOTBRIDGE
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1184
	default 0x78000000 if DEBUG_CNS3XXX
1185 1186
	default 0x80070000 if DEBUG_IMX23_UART
	default 0x80074000 if DEBUG_IMX28_UART
1187
	default 0x80230000 if DEBUG_PICOXCELL_UART
1188 1189
	default 0x808c0000 if ARCH_EP93XX
	default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1190
	default 0xa9a00000 if DEBUG_MSM_UART
1191 1192
	default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
	default 0xc0013000 if DEBUG_U300_UART
1193 1194
	default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
	default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1195
	default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
1196
	default 0xd0012000 if DEBUG_MVEBU_UART
1197
	default 0xc81004c0 if DEBUG_MESON_UARTAO
1198 1199
	default 0xd4017000 if DEBUG_MMP_UART2
	default 0xd4018000 if DEBUG_MMP_UART3
1200
	default 0xe0000000 if ARCH_SPEAR13XX
1201
	default 0xe4007000 if DEBUG_HIP04_UART
1202
	default 0xf0000be0 if ARCH_EBSA110
1203
	default 0xf040ab00 if DEBUG_BRCMSTB_UART
1204
	default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
1205
	default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
1206
				ARCH_ORION5X
1207
	default 0xf7fc9000 if DEBUG_BERLIN_UART
1208
	default 0xf8b00000 if DEBUG_HIX5HD2_UART
1209
	default 0xf991e000 if DEBUG_QCOM_UARTDM
1210
	default 0xfcb00000 if DEBUG_HI3620_UART
1211
	default 0xfe800000 if ARCH_IOP32X
1212
	default 0xff690000 if DEBUG_RK32_UART2
1213
	default 0xffc02000 if DEBUG_SOCFPGA_UART
1214
	default 0xffd82340 if ARCH_IOP13XX
1215
	default 0xfff36000 if DEBUG_HIGHBANK_UART
1216
	default 0xfffe8600 if DEBUG_UART_BCM63XX
1217
	default 0xfffff700 if ARCH_IOP33X
1218
	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1219
		DEBUG_LL_UART_EFM32 || \
1220
		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1221 1222
		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
		DEBUG_UART_BCM63XX
1223 1224 1225 1226

config DEBUG_UART_VIRT
	hex "Virtual base address of debug UART"
	default 0xe0010fe0 if ARCH_RPC
1227
	default 0xe1000000 if DEBUG_MSM_UART
1228
	default 0xf0000be0 if ARCH_EBSA110
1229 1230
	default 0xf01fb000 if DEBUG_NOMADIK_UART
	default 0xf0201000 if DEBUG_BCM2835
1231
	default 0xf1000300 if DEBUG_BCM_5301X
1232
	default 0xf1002000 if DEBUG_MT8127_UART0
1233
	default 0xf1006000 if DEBUG_MT6589_UART0
1234
	default 0xf1009000 if DEBUG_MT8135_UART3
1235 1236
	default 0xf11f1000 if ARCH_VERSATILE
	default 0xf1600000 if ARCH_INTEGRATOR
1237 1238
	default 0xf1c28000 if DEBUG_SUNXI_UART0
	default 0xf1c28400 if DEBUG_SUNXI_UART1
1239
	default 0xf1f02800 if DEBUG_SUNXI_R_UART
1240 1241 1242
	default 0xf2100000 if DEBUG_PXA_UART1
	default 0xf4090000 if ARCH_LPC32XX
	default 0xf4200000 if ARCH_GEMINI
1243
	default 0xf7000000 if DEBUG_SUN9I_UART0
1244 1245 1246 1247 1248 1249
	default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
				DEBUG_S3C2410_UART0)
	default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
				DEBUG_S3C2410_UART1)
	default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
				DEBUG_S3C2410_UART2)
1250
	default 0xf7fc9000 if DEBUG_BERLIN_UART
1251
	default 0xf8007000 if DEBUG_HIP04_UART
1252 1253
	default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
	default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
1254
	default 0xfa71e000 if DEBUG_QCOM_UARTDM
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1255
	default 0xfb002000 if DEBUG_CNS3XXX
1256 1257
	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
1258
	default 0xfc40ab00 if DEBUG_BRCMSTB_UART
1259
	default 0xfcfe8600 if DEBUG_UART_BCM63XX
1260 1261
	default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
	default 0xfd000000 if ARCH_SPEAR13XX
1262 1263 1264
	default 0xfd012000 if ARCH_MV78XX0
	default 0xfde12000 if ARCH_DOVE
	default 0xfe012000 if ARCH_ORION5X
1265
	default 0xf31004c0 if DEBUG_MESON_UARTAO
1266 1267
	default 0xfe017000 if DEBUG_MMP_UART2
	default 0xfe018000 if DEBUG_MMP_UART3
1268
	default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
1269
	default 0xfe230000 if DEBUG_PICOXCELL_UART
1270
	default 0xfe300000 if DEBUG_BCM_KONA_UART
1271
	default 0xfe800000 if ARCH_IOP32X
1272
	default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
1273 1274
	default 0xfeb24000 if DEBUG_RK3X_UART0
	default 0xfeb26000 if DEBUG_RK3X_UART1
1275 1276
	default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
	default 0xfeb31000 if DEBUG_KEYSTONE_UART1
1277
	default 0xfec02000 if DEBUG_SOCFPGA_UART
1278
	default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
1279
	default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
1280
	default 0xfec90000 if DEBUG_RK32_UART2
1281 1282
	default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
	default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
1283 1284 1285
	default 0xfed60000 if DEBUG_RK29_UART0
	default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
	default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
1286
	default 0xfedc0000 if ARCH_EP93XX
1287
	default 0xfee003f8 if FOOTBRIDGE
1288
	default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
1289 1290 1291
	default 0xfee82340 if ARCH_IOP13XX
	default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
	default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
1292
	default 0xfef36000 if DEBUG_HIGHBANK_UART
1293
	default 0xfefff700 if ARCH_IOP33X
1294 1295
	default 0xff003000 if DEBUG_U300_UART
	default DEBUG_UART_PHYS if !MMU
1296
	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
1297
		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
1298 1299
		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
		DEBUG_UART_BCM63XX
1300

1301 1302
config DEBUG_UART_8250_SHIFT
	int "Register offset shift for the 8250 debug UART"
1303
	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1304 1305
	default 0 if FOOTBRIDGE || ARCH_IOP32X
	default 2
1306

1307 1308
config DEBUG_UART_8250_WORD
	bool "Use 32-bit accesses for 8250 UART"
1309
	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1310
	depends on DEBUG_UART_8250_SHIFT >= 2
1311
	default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
1312 1313
		ARCH_KEYSTONE || \
		DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
1314
		DEBUG_DAVINCI_DA8XX_UART2 || \
1315 1316
		DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
		DEBUG_BRCMSTB_UART
1317

1318 1319
config DEBUG_UART_8250_FLOW_CONTROL
	bool "Enable flow control for 8250 UART"
1320
	depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
1321 1322
	default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC

1323 1324
config DEBUG_UNCOMPRESS
	bool
1325
	depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG
1326
	default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
1327
		     (!DEBUG_TEGRA_UART || !ZBOOT_ROM)
1328 1329 1330 1331 1332 1333 1334 1335 1336 1337
	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.
	  
1338

1339 1340
config UNCOMPRESS_INCLUDE
	string
1341
	default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
1342
					PLAT_SAMSUNG || ARCH_EFM32
1343 1344
	default "mach/uncompress.h"

1345 1346 1347 1348 1349 1350 1351 1352
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.

1353 1354
config OC_ETM
	bool "On-chip ETM and ETB"
1355
	depends on ARM_AMBA
1356 1357 1358 1359 1360
	help
	  Enables the on-chip embedded trace macrocell and embedded trace
	  buffer driver that will allow you to collect traces of the
	  kernel code.

1361 1362 1363 1364 1365 1366
config ARM_KPROBES_TEST
	tristate "Kprobes test module"
	depends on KPROBES && MODULES
	help
	  Perform tests of kprobes API and instruction set simulation.

1367 1368 1369 1370 1371 1372 1373 1374 1375
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.

1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386
config DEBUG_SET_MODULE_RONX
	bool "Set loadable kernel module data as NX and text as RO"
	depends on MODULES
	---help---
	  This option helps catch unintended modifications to loadable
	  kernel module's text and read-only data. It also prevents execution
	  of module data. Such protection may interfere with run-time code
	  patching and dynamic kernel tracing - and they might also protect
	  against certain classes of kernel exploits.
	  If in doubt, say "N".

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1387
endmenu