mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 10:01:43 +00:00
f8f1279ce0
Provide generic option choices for 8250 and PL01x UART ports; these can now be selected by UART type rather than asking about the platform. This means that a kernel configuration user can manually choose the various parameters of the debug UART without resorting to the platform having to encode the possible settings. These two generic options are preferred over further debug entries for these ports; the existing options which refer back to the 8250 and PL01x ports are now considered deprecated. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1076 lines
35 KiB
Plaintext
1076 lines
35 KiB
Plaintext
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
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART1 serial port on DaVinci DA8XX devices.
|
|
|
|
config DEBUG_DAVINCI_DA8XX_UART2
|
|
bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
|
|
depends on ARCH_DAVINCI_DA8XX
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART2 serial port on DaVinci DA8XX devices.
|
|
|
|
config DEBUG_DAVINCI_DMx_UART0
|
|
bool "Kernel low-level debugging on DaVinci DMx using UART0"
|
|
depends on ARCH_DAVINCI_DMx
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART0 serial port on DaVinci DMx devices.
|
|
|
|
config DEBUG_DAVINCI_TNETV107X_UART1
|
|
bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
|
|
depends on ARCH_DAVINCI_TNETV107X
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART1 serial port on DaVinci TNETV107X
|
|
devices.
|
|
|
|
config DEBUG_ZYNQ_UART0
|
|
bool "Kernel low-level debugging on Xilinx Zynq using UART0"
|
|
depends on ARCH_ZYNQ
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART0 on the Zynq platform.
|
|
|
|
config DEBUG_ZYNQ_UART1
|
|
bool "Kernel low-level debugging on Xilinx Zynq using UART1"
|
|
depends on ARCH_ZYNQ
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART1 on the Zynq platform.
|
|
|
|
If you have a ZC702 board and want early boot messages to
|
|
appear on the USB serial adaptor, select this option.
|
|
|
|
config DEBUG_DC21285_PORT
|
|
bool "Kernel low-level debugging messages via footbridge serial port"
|
|
depends on FOOTBRIDGE
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the serial port in the DC21285 (Footbridge).
|
|
|
|
config DEBUG_FOOTBRIDGE_COM1
|
|
bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
|
|
depends on FOOTBRIDGE
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the 8250 at PCI COM1.
|
|
|
|
config DEBUG_HIGHBANK_UART
|
|
bool "Kernel low-level debugging messages via Highbank UART"
|
|
depends on ARCH_HIGHBANK
|
|
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
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART0 serial port on KEYSTONE2 devices.
|
|
|
|
config DEBUG_KEYSTONE_UART1
|
|
bool "Kernel low-level debugging on KEYSTONE2 using UART1"
|
|
depends on ARCH_KEYSTONE
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART1 serial port on KEYSTONE2 devices.
|
|
|
|
config DEBUG_MMP_UART2
|
|
bool "Kernel low-level debugging message via MMP UART2"
|
|
depends on ARCH_MMP
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
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_ROCKCHIP_UART
|
|
bool
|
|
depends on ARCH_ROCKCHIP
|
|
|
|
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/keystone.S" if DEBUG_KEYSTONE_UART0 || \
|
|
DEBUG_KEYSTONE_UART1
|
|
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_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 0x01c28000 if DEBUG_SUNXI_UART0
|
|
default 0x01c28400 if DEBUG_SUNXI_UART1
|
|
default 0x03010fe0 if ARCH_RPC
|
|
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 0xd0012000 if DEBUG_MVEBU_UART
|
|
default 0xd4017000 if DEBUG_MMP_UART2
|
|
default 0xd4018000 if DEBUG_MMP_UART3
|
|
default 0xf0000be0 if ARCH_EBSA110
|
|
default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
|
|
default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
|
|
ARCH_ORION5X
|
|
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 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 0xfeb24000 if DEBUG_RK3X_UART0
|
|
default 0xfeb26000 if DEBUG_RK3X_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 0xfed12000 if ARCH_KIRKWOOD
|
|
default 0xfedc0000 if ARCH_EP93XX
|
|
default 0xfee003f8 if FOOTBRIDGE
|
|
default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
|
|
default 0xfee36000 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
|
|
|
|
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
|
|
default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
|
|
!DEBUG_TEGRA_UART
|
|
help
|
|
This option influences the normal decompressor output for
|
|
multiplatform kernels. Normally, multiplatform kernels disable
|
|
decompressor output because it is not possible to know where to
|
|
send the decompressor output.
|
|
|
|
When this option is set, the selected DEBUG_LL output method
|
|
will be re-used for normal decompressor output on multiplatform
|
|
kernels.
|
|
|
|
|
|
config UNCOMPRESS_INCLUDE
|
|
string
|
|
default "debug/uncompress.h" if ARCH_MULTIPLATFORM
|
|
default "mach/uncompress.h"
|
|
|
|
config EARLY_PRINTK
|
|
bool "Early printk"
|
|
depends on DEBUG_LL
|
|
help
|
|
Say Y here if you want to have an early console using the
|
|
kernel low-level debugging functions. Add earlyprintk to your
|
|
kernel parameters to enable this console.
|
|
|
|
config OC_ETM
|
|
bool "On-chip ETM and ETB"
|
|
depends on ARM_AMBA
|
|
help
|
|
Enables the on-chip embedded trace macrocell and embedded trace
|
|
buffer driver that will allow you to collect traces of the
|
|
kernel code.
|
|
|
|
config ARM_KPROBES_TEST
|
|
tristate "Kprobes test module"
|
|
depends on KPROBES && MODULES
|
|
help
|
|
Perform tests of kprobes API and instruction set simulation.
|
|
|
|
config PID_IN_CONTEXTIDR
|
|
bool "Write the current PID to the CONTEXTIDR register"
|
|
depends on CPU_COPY_V6
|
|
help
|
|
Enabling this option causes the kernel to write the current PID to
|
|
the PROCID field of the CONTEXTIDR register, at the expense of some
|
|
additional instructions during context switch. Say Y here only if you
|
|
are planning to use hardware trace tools with this kernel.
|
|
|
|
endmenu
|