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linux_dsm_epyc7002/arch/arm/Kconfig.debug
Linus Torvalds 8e73e367f7 ARM: SoC cleanups for 3.12 
This branch contains code cleanups, moves and removals for 3.12.
 
 There's a large number of various cleanups, and a nice net removal of
 13500 lines of code.
 
 Highlights worth mentioning are:
 
 - A series of patches from Stephen Boyd removing the ARM local timer API.
 - Move of Qualcomm MSM IOMMU code to drivers/iommu.
 - Samsung PWM driver cleanups from Tomasz Figa, removing legacy PWM driver
   and switching over to the drivers/pwm one.
 - Removal of some unusued auto-generated headers for OMAP2+ (PRM/CM).
 
 There's also a move of a header file out of include/linux/i2c/ to
 platform_data, where it really belongs. It touches mostly ARM platform
 code for include changes so we took it through our tree.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This branch contains code cleanups, moves and removals for 3.12.

  There's a large number of various cleanups, and a nice net removal of
  13500 lines of code.

  Highlights worth mentioning are:

   - A series of patches from Stephen Boyd removing the ARM local timer
     API.
   - Move of Qualcomm MSM IOMMU code to drivers/iommu.
   - Samsung PWM driver cleanups from Tomasz Figa, removing legacy PWM
     driver and switching over to the drivers/pwm one.
   - Removal of some unusued auto-generated headers for OMAP2+ (PRM/CM).

  There's also a move of a header file out of include/linux/i2c/ to
  platform_data, where it really belongs.  It touches mostly ARM
  platform code for include changes so we took it through our tree"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: OMAP2+: Add back the define for AM33XX_RST_GLOBAL_WARM_SW_MASK
  gpio: (gpio-pca953x) move header to linux/platform_data/
  arm: zynq: hotplug: Remove unreachable code
  ARM: SAMSUNG: Remove unnecessary exynos4_default_sdhci*()
  tegra: simplify use of devm_ioremap_resource
  ARM: SAMSUNG: Remove plat/regs-timer.h header
  ARM: SAMSUNG: Remove remaining uses of plat/regs-timer.h header
  ARM: SAMSUNG: Remove pwm-clock infrastructure
  ARM: SAMSUNG: Remove old PWM timer platform devices
  pwm: Remove superseded pwm-samsung-legacy driver
  ARM: SAMSUNG: Modify board files to use new PWM platform device
  ARM: SAMSUNG: Rework private data handling in dev-backlight
  pwm: Add new pwm-samsung driver
  ARM: mach-mvebu: remove redundant DT parsing and validation
  ARM: msm: Only compile io.c on platforms that use it
  iommu/msm: Move mach includes to iommu directory
  ARM: msm: Remove devices-iommu.c
  ARM: msm: Move mach/board.h contents to common.h
  ARM: msm: Migrate msm_timer to CLOCKSOURCE_OF_DECLARE
  ARM: msm: Remove TMR and TMR0 static mappings
  ...
2013-09-06 13:21:16 -07:00

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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
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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_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.
config DEBUG_HIGHBANK_UART
bool "Kernel low-level debugging messages via Highbank UART"
depends on ARCH_HIGHBANK
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_8250
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
select DEBUG_UART_PL01X
help
Say Y here if you want kernel low-level debugging support
on TI-NSPIRE CX models.
config DEBUG_OMAP2UART1
bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
help
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
config DEBUG_PICOXCELL_UART
depends on ARCH_PICOXCELL
bool "Use PicoXcell UART for low-level debug"
select DEBUG_UART_8250
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"
select DEBUG_UART_8250
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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_RK29_UART0
bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
depends on ARCH_ROCKCHIP
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on Rockchip based platforms.
config DEBUG_RK3X_UART0
bool "Kernel low-level debugging messages via Rockchip RK3X UART0"
depends on ARCH_ROCKCHIP
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on Rockchip based platforms.
config DEBUG_RK3X_UART1
bool "Kernel low-level debugging messages via Rockchip RK3X UART1"
depends on ARCH_ROCKCHIP
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on Rockchip based platforms.
config DEBUG_RK3X_UART2
bool "Kernel low-level debugging messages via Rockchip RK3X UART2"
depends on ARCH_ROCKCHIP
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on Rockchip based platforms.
config DEBUG_RK3X_UART3
bool "Kernel low-level debugging messages via Rockchip RK3X UART3"
depends on ARCH_ROCKCHIP
select DEBUG_UART_8250
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"
select DEBUG_UART_8250
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
select DEBUG_UART_8250
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
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on Allwinner A1X based platforms on the UART1.
config TEGRA_DEBUG_UART_AUTO_ODMDATA
bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
depends on ARCH_TEGRA
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
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 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"
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 b2020. which has
default UART wired up to SBC ASC1.
If unsure, say N.
config DEBUG_U300_UART
bool "Kernel low-level debugging messages via U300 UART0"
depends on ARCH_U300
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
select DEBUG_UART_PL01X
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
above. 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.
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.
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.
endchoice
config DEBUG_EXYNOS_UART
bool
config DEBUG_OMAP2PLUS_UART
bool
depends on ARCH_OMAP2PLUS
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.
config DEBUG_TEGRA_UART
bool
depends on ARCH_TEGRA
config DEBUG_STI_UART
bool
depends on ARCH_STI
config DEBUG_LL_INCLUDE
string
default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
default "debug/exynos.S" if DEBUG_EXYNOS_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/msm.S" if DEBUG_MSM_UART1 || \
DEBUG_MSM_UART2 || \
DEBUG_MSM_UART3 || \
DEBUG_MSM8660_UART || \
DEBUG_MSM8960_UART
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
default "debug/sti.S" if DEBUG_STI_UART
default "debug/tegra.S" if DEBUG_TEGRA_UART
default "debug/ux500.S" if DEBUG_UX500_UART
default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
default "debug/vt8500.S" if DEBUG_VT8500_UART0
default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
default "mach/debug-macro.S"
# Compatibility options for PL01x
config DEBUG_UART_PL01X
def_bool ARCH_EP93XX || \
ARCH_INTEGRATOR || \
ARCH_SPEAR3XX || \
ARCH_SPEAR6XX || \
ARCH_SPEAR13XX || \
ARCH_VERSATILE
# Compatibility options for 8250
config DEBUG_UART_8250
def_bool ARCH_DOVE || ARCH_EBSA110 || \
(FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \
ARCH_IOP33X || ARCH_IXP4XX || ARCH_KIRKWOOD || \
ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
default 0x01c28000 if DEBUG_SUNXI_UART0
default 0x01c28400 if DEBUG_SUNXI_UART1
default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
default 0x02530c00 if DEBUG_KEYSTONE_UART0
default 0x02531000 if DEBUG_KEYSTONE_UART1
default 0x03010fe0 if ARCH_RPC
default 0x08108300 if DEBUG_DAVINCI_TNETV107X_UART1
default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \
DEBUG_VEXPRESS_UART0_CA9
default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
default 0x10124000 if DEBUG_RK3X_UART0
default 0x10126000 if DEBUG_RK3X_UART1
default 0x101f1000 if ARCH_VERSATILE
default 0x101fb000 if DEBUG_NOMADIK_UART
default 0x16000000 if ARCH_INTEGRATOR
default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
default 0x20060000 if DEBUG_RK29_UART0
default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
default 0x20201000 if DEBUG_BCM2835
default 0x40090000 if ARCH_LPC32XX
default 0x40100000 if DEBUG_PXA_UART1
default 0x42000000 if ARCH_GEMINI
default 0x7c0003f8 if FOOTBRIDGE
default 0x80230000 if DEBUG_PICOXCELL_UART
default 0x80070000 if DEBUG_IMX23_UART
default 0x80074000 if DEBUG_IMX28_UART
default 0x808c0000 if ARCH_EP93XX
default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
default 0xc0013000 if DEBUG_U300_UART
default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
default 0xd0012000 if DEBUG_MVEBU_UART
default 0xd4017000 if DEBUG_MMP_UART2
default 0xd4018000 if DEBUG_MMP_UART3
default 0xe0000000 if ARCH_SPEAR13XX
default 0xf0000be0 if ARCH_EBSA110
default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
ARCH_ORION5X
default 0xf8b00000 if DEBUG_HI3716_UART
default 0xfcb00000 if DEBUG_HI3620_UART
default 0xfe800000 if ARCH_IOP32X
default 0xffc02000 if DEBUG_SOCFPGA_UART
default 0xffd82340 if ARCH_IOP13XX
default 0xfff36000 if DEBUG_HIGHBANK_UART
default 0xfffff700 if ARCH_IOP33X
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
default 0xe0010fe0 if ARCH_RPC
default 0xf0000be0 if ARCH_EBSA110
default 0xf0009000 if DEBUG_CNS3XXX
default 0xf01fb000 if DEBUG_NOMADIK_UART
default 0xf0201000 if DEBUG_BCM2835
default 0xf11f1000 if ARCH_VERSATILE
default 0xf1600000 if ARCH_INTEGRATOR
default 0xf1c28000 if DEBUG_SUNXI_UART0
default 0xf1c28400 if DEBUG_SUNXI_UART1
default 0xf2100000 if DEBUG_PXA_UART1
default 0xf4090000 if ARCH_LPC32XX
default 0xf4200000 if ARCH_GEMINI
default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
default 0xfd000000 if ARCH_SPEAR13XX
default 0xfd012000 if ARCH_MV78XX0
default 0xfde12000 if ARCH_DOVE
default 0xfe012000 if ARCH_ORION5X
default 0xfe017000 if DEBUG_MMP_UART2
default 0xfe018000 if DEBUG_MMP_UART3
default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
default 0xfe230000 if DEBUG_PICOXCELL_UART
default 0xfe800000 if ARCH_IOP32X
default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART
default 0xfeb24000 if DEBUG_RK3X_UART0
default 0xfeb26000 if DEBUG_RK3X_UART1
default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
default 0xfeb31000 if DEBUG_KEYSTONE_UART1
default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE
default 0xfed60000 if DEBUG_RK29_UART0
default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
default 0xfec02000 if DEBUG_SOCFPGA_UART
default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
default 0xfed12000 if ARCH_KIRKWOOD
default 0xfedc0000 if ARCH_EP93XX
default 0xfee003f8 if FOOTBRIDGE
default 0xfee08300 if DEBUG_DAVINCI_TNETV107X_UART1
default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
default 0xfef36000 if DEBUG_HIGHBANK_UART
default 0xfee82340 if ARCH_IOP13XX
default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
default 0xfefff700 if ARCH_IOP33X
default 0xff003000 if DEBUG_U300_UART
default DEBUG_UART_PHYS if !MMU
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
default 0 if FOOTBRIDGE || ARCH_IOP32X
default 2
config DEBUG_UART_8250_WORD
bool "Use 32-bit accesses for 8250 UART"
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
depends on DEBUG_UART_8250_SHIFT >= 2
default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
ARCH_KEYSTONE || \
DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1
config DEBUG_UART_8250_FLOW_CONTROL
bool "Enable flow control for 8250 UART"
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
config DEBUG_UNCOMPRESS
bool
depends on ARCH_MULTIPLATFORM || ARCH_MSM
default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
(!DEBUG_TEGRA_UART || !ZBOOT_ROM)
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 || ARCH_MSM
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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