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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
menu "Kernel hacking"
source "lib/Kconfig.debug"
ARM: implement CONFIG_STRICT_DEVMEM by disabling access to RAM via /dev/mem There are very few legitimate use cases, if any, for directly accessing system RAM through /dev/mem. So let's mimic what they do on x86 and forbid it when CONFIG_STRICT_DEVMEM is turned on. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2010-09-22 16:34:36 -06:00
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.
[ARM] 5386/2: unwind: Add Makefile and Kconfig entries for ARM stack unwinding This patch also makes the frame pointer default to y only if !ARM_UNWIND. LOCKDEP no longer selects FRAME_POINTER if ARM_UNWIND is enabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-12 05:56:34 -07:00
# RMK wants arm kernels compiled with frame pointers or stack unwinding.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
# 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
Thumb-2: Add Thumb-2 support to the build files This patch adds the necessary entries to the Makefile and Kconfig files for building the Thumb-2 kernel. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2009-07-24 05:33:02 -06:00
depends on !THUMB2_KERNEL
ARM: ftrace: enable function graph tracer Add the options to enable the function graph tracer on ARM. Function graph tracer support requires frame pointers, so exclude Thumb-2 and also make sure FRAME_POINTER gets enabled when FUNCTION_GRAPH_TRACER is used, since FUNCTION_TRACER doesn't "select FRAME_POINTER" when ARM_UNWIND is used. Therefore, with GCC 4.4.0+, you get plain function tracing without frame pointers, but you'll need them if you want function graph tracing. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Rabin Vincent <rabin@rab.in>
2010-11-06 11:33:53 -06:00
default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
help
If you say N here, the resulting kernel will be slightly smaller and
[ARM] 5386/2: unwind: Add Makefile and Kconfig entries for ARM stack unwinding This patch also makes the frame pointer default to y only if !ARM_UNWIND. LOCKDEP no longer selects FRAME_POINTER if ARM_UNWIND is enabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-12 05:56:34 -07:00
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
ARM: Ensure experimental options are so marked It is kernel-wide policy that options depending on EXPERIMENTAL should also have '(EXPERIMENTAL)' in their option text, and options with '(EXPERIMENTAL)' depend on EXPERIMENTAL. Ensure that all ARM options comply with this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-05 16:06:22 -07:00
bool "Enable stack unwinding support (EXPERIMENTAL)"
[ARM] 5386/2: unwind: Add Makefile and Kconfig entries for ARM stack unwinding This patch also makes the frame pointer default to y only if !ARM_UNWIND. LOCKDEP no longer selects FRAME_POINTER if ARM_UNWIND is enabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-12 05:56:34 -07:00
depends on AEABI && EXPERIMENTAL
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.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
ARM: 6314/1: ftrace: allow build without frame pointers on ARM With a new enough GCC, ARM function tracing can be supported without the need for frame pointers. This is essential for Thumb-2 support, since frame pointers aren't available then. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-08-10 12:32:37 -06:00
config OLD_MCOUNT
bool
depends on FUNCTION_TRACER && FRAME_POINTER
default y
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
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
ARM: 7073/1: debug: augment DEBUG_LL Kconfig help to clarify behaviour Enabled DEBUG_LL hardcodes the UART address into the kernel and results in a non-portable kernel image. Since this option is only intended for use when debugging early boot failures, supporting multiple platforms in such a configuration is not the intended use-case. This patch documents this limitation in the DEBUG_LL Kconfig help text, so that users are aware of the portability restrictions that are associated with enabling low-level debugging support. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-01 12:04:44 -06:00
bool "Kernel low-level debugging functions (read help!)"
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
depends on DEBUG_KERNEL
help
[ARM] Fix typo in arch/arm/Kconfig.debug It's called printch, not printchar Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-09 08:57:17 -06:00
Say Y here to include definitions of printascii, printch, printhex
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
ARM: 7073/1: debug: augment DEBUG_LL Kconfig help to clarify behaviour Enabled DEBUG_LL hardcodes the UART address into the kernel and results in a non-portable kernel image. Since this option is only intended for use when debugging early boot failures, supporting multiple platforms in such a configuration is not the intended use-case. This patch documents this limitation in the DEBUG_LL Kconfig help text, so that users are aware of the portability restrictions that are associated with enabling low-level debugging support. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-01 12:04:44 -06:00
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.
ARM: 7072/1: debug: use kconfig choice for selecting DEBUG_LL UART Enabling CONFIG_DEBUG_LL (which is required for earlyprintk) hardwires the debug UART address into the kernel, so that we can print before the platform is initialised. If the user inadvertently selects multiple platforms with DEBUG_LL enabled, the UART address may not be correct and will likely cause the kernel to hang in the very early stages of boot. This patch, based on a skeleton from Russell, uses a Kconfig choice for selecting the DEBUG_LL UART, therefore allowing the user to make a choice about the supported platform when DEBUG_LL is enabled. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-01 11:58:51 -06:00
choice
prompt "Kernel low-level debugging port"
depends on DEBUG_LL
ARM: at91: make DBGU soc independent we will select now the DBGU used by the soc at Kconfig level For the DEBUG_LL and early_printk this will allow to select which DBGU to use this will also allow to select them when multiple SOC are enabled Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-01 11:43:31 -06:00
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
ARM: at91: code removal of CAP9 SoC Following removal announce and addition to feature-removal-schedule.txt, here is the actual source code deletion for Atmel CAP9 family. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-01-26 06:07:09 -07:00
bool "Kernel low-level debugging on 9263 and 9g45"
ARM: at91: make DBGU soc independent we will select now the DBGU used by the soc at Kconfig level For the DEBUG_LL and early_printk this will allow to select which DBGU to use this will also allow to select them when multiple SOC are enabled Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-01 11:43:31 -06:00
depends on HAVE_AT91_DBGU1
ARM: 7096/1: debug: Add UART1 config choices ARM patch 7072/1 (debug: use kconfig choice for selecting DEBUG_LL UART) didn't notice that the Kconfigs relied on being unselected to configure a different serial port. Since there is no NONE option in a choice menu, explicitly add the other option so that both serial ports can be selected. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-22 13:28:35 -06:00
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.
ARM: 7072/1: debug: use kconfig choice for selecting DEBUG_LL UART Enabling CONFIG_DEBUG_LL (which is required for earlyprintk) hardwires the debug UART address into the kernel, so that we can print before the platform is initialised. If the user inadvertently selects multiple platforms with DEBUG_LL enabled, the UART address may not be correct and will likely cause the kernel to hang in the very early stages of boot. This patch, based on a skeleton from Russell, uses a Kconfig choice for selecting the DEBUG_LL UART, therefore allowing the user to make a choice about the supported platform when DEBUG_LL is enabled. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-01 11:58:51 -06:00
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.
ARM: davinci: implement DEBUG_LL port choice Apart from the necessity to do this change for multi-platform kernels the previous logic depended on the zImage decompressor to write the physical and virtual address to a magic memory location. If the decompressor is unused or not correctly configured for the current machid, the addruart macro was an infinite loop. Moreover debugging the early zImage code was not possible either. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [nsekhar@ti.com: add braces in _DEBUG_LL_ENTRY() macro to fix checkpatch error. Fix debug port choice config dependency for traditional DaVincis. Modify debug port config names and add help text.] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2012-03-22 03:29:23 -06:00
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.
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
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.
ARM: add Highbank core platform support This adds basic support for the Calxeda Highbank platform. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
2011-06-07 09:02:55 -06:00
config DEBUG_HIGHBANK_UART
bool "Kernel low-level debugging messages via Highbank UART"
depends on ARCH_HIGHBANK
help
Say Y here if you want the debug print routines to direct
their output to the UART on Highbank based devices.
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-18 22:56:59 -06:00
config DEBUG_IMX1_UART
bool "i.MX1 Debug UART"
depends on SOC_IMX1
help
Say Y here if you want kernel low-level debugging support
on i.MX1.
config DEBUG_IMX23_UART
bool "i.MX23 Debug UART"
depends on SOC_IMX23
help
Say Y here if you want kernel low-level debugging support
on i.MX23.
config DEBUG_IMX25_UART
bool "i.MX25 Debug UART"
depends on SOC_IMX25
help
Say Y here if you want kernel low-level debugging support
on i.MX25.
config DEBUG_IMX21_IMX27_UART
bool "i.MX21 and i.MX27 Debug UART"
depends on SOC_IMX21 || SOC_IMX27
help
Say Y here if you want kernel low-level debugging support
on i.MX21 or i.MX27.
config DEBUG_IMX28_UART
bool "i.MX28 Debug UART"
depends on SOC_IMX28
help
Say Y here if you want kernel low-level debugging support
on i.MX28.
config DEBUG_IMX31_IMX35_UART
bool "i.MX31 and i.MX35 Debug UART"
depends on SOC_IMX31 || SOC_IMX35
help
Say Y here if you want kernel low-level debugging support
on i.MX31 or 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_IMX50_IMX53_UART
bool "i.MX50 and i.MX53 Debug UART"
depends on SOC_IMX50 || SOC_IMX53
help
Say Y here if you want kernel low-level debugging support
on i.MX50 or i.MX53.
ARM: imx6: Add UART2 for low-level debug To be able to enable early debugging on boards using the UART2 for the console, add the option for early debugging on UART2. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-04-27 02:15:45 -06:00
config DEBUG_IMX6Q_UART2
bool "i.MX6Q Debug UART2"
depends on SOC_IMX6Q
help
Say Y here if you want kernel low-level debugging support
on i.MX6Q UART2. This is correct for e.g. the SabreLite
board.
ARM: imx6: Rename DEBUG_IMX6Q_UART to UART4 Different boards may use differenct UART ports for debugging. To be able to add different debug UART configurations (e.g. UART2), rename the existing general DEBUG_IMX6Q_UART to DEBUG_IMX6Q_UART4. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-02-06 05:19:19 -07:00
config DEBUG_IMX6Q_UART4
bool "i.MX6Q Debug UART4"
arm/imx6q: add core definitions and low-level debug uart It adds the core definitions and low-level debug uart support for imx6q. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-10-02 01:09:11 -06:00
depends on SOC_IMX6Q
help
Say Y here if you want kernel low-level debugging support
ARM: imx6: Rename DEBUG_IMX6Q_UART to UART4 Different boards may use differenct UART ports for debugging. To be able to add different debug UART configurations (e.g. UART2), rename the existing general DEBUG_IMX6Q_UART to DEBUG_IMX6Q_UART4. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-02-06 05:19:19 -07:00
on i.MX6Q UART4.
arm/imx6q: add core definitions and low-level debug uart It adds the core definitions and low-level debug uart support for imx6q. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-10-02 01:09:11 -06:00
ARM: mmp: implement DEBUG_LL port choice DEBUG_LL port must be choiced in arch-mmp. DEBUG_LL port should be UART2 in TTC DKB. And it should be UART3 in brownstone. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-08-10 09:49:41 -06:00
config DEBUG_MMP_UART2
bool "Kernel low-level debugging message via MMP UART2"
depends on ARCH_MMP
help
Say Y here if you want kernel low-level debugging support
on MMP UART2.
config DEBUG_MMP_UART3
bool "Kernel low-level debugging message via MMP UART3"
depends on ARCH_MMP
help
Say Y here if you want kernel low-level debugging support
on MMP UART3.
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to the first serial port on MSM devices.
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_MSM_UART2
bool "Kernel low-level debugging messages via MSM UART2"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to the second serial port on MSM devices.
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
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.
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_MSM8660_UART
bool "Kernel low-level debugging messages via MSM 8660 UART"
depends on ARCH_MSM8X60
select MSM_HAS_DEBUG_UART_HS
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to the serial port on MSM 8660 devices.
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
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.
ARM: plat-samsung: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, convert the Samsung UART selection to use a set of bools rather than an int. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:28:54 -06:00
ARM: mvebu: move debug macros to include/debug Move mvebu debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch>
2012-09-02 13:41:34 -06:00
config DEBUG_MVEBU_UART
bool "Kernel low-level debugging messages via MVEBU UART"
depends on ARCH_MVEBU
help
Say Y here if you want kernel low-level debugging support
on MVEBU based platforms.
ARM: picoxcell: move debug macros to include/debug Move picoxcell debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Jamie Iles <jamie@jamieiles.com>
2012-09-06 13:14:46 -06:00
config DEBUG_PICOXCELL_UART
depends on ARCH_PICOXCELL
bool "Use PicoXcell UART for low-level debug"
help
Say Y here if you want kernel low-level debugging support
on PicoXcell based platforms.
ARM: realview: use Kconfig choice for debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-16 15:30:28 -06:00
config DEBUG_REALVIEW_STD_PORT
bool "RealView Default UART"
depends on ARCH_REALVIEW
help
Say Y here if you want the debug print routines to direct
their output to the serial port on RealView EB, PB11MP, PBA8
and PBX platforms.
config DEBUG_REALVIEW_PB1176_PORT
bool "RealView PB1176 UART"
depends on MACH_REALVIEW_PB1176
help
Say Y here if you want the debug print routines to direct
their output to the standard serial port on the RealView
PB1176 platform.
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_S3C_UART0
depends on PLAT_SAMSUNG
bool "Use S3C UART 0 for low-level debug"
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to UART 0. The port must have been initialised
by the boot-loader before use.
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
config DEBUG_S3C_UART1
depends on PLAT_SAMSUNG
bool "Use S3C UART 1 for low-level debug"
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to UART 1. The port must have been initialised
by the boot-loader before use.
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
config DEBUG_S3C_UART2
depends on PLAT_SAMSUNG
bool "Use S3C UART 2 for low-level debug"
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
their output to UART 2. The port must have been initialised
by the boot-loader before use.
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
ARM: socfpga: move debug macros to include/debug Move socfpga debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
2012-09-06 13:11:28 -06:00
config DEBUG_SOCFPGA_UART
depends on ARCH_SOCFPGA
bool "Use SOCFPGA UART for low-level debug"
help
Say Y here if you want kernel low-level debugging support
on SOCFPGA based platforms.
ARM: vexpress: Config option for early printk console Versatile Express platform can be used in different configurations, the console UART used by early printk may be located at different addresses in the address space. This patch makes it possible to select the base address of a PL011 UART to be used as a console output in the kernel configuration. The default behaviour is still the heuristic detecting memory map on Cortex-A core tiles. The zImage decompressor will use the same configuration values or print out nothing if DEBUG_LL is not enabled. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2012-07-11 10:07:25 -06:00
config DEBUG_VEXPRESS_UART0_DETECT
bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
depends on ARCH_VEXPRESS && CPU_CP15_MMU
help
This option enables a simple heuristic which tries to determine
the motherboard's memory map variant (original or RS1) and then
choose the relevant UART0 base address.
Note that this will only work with standard A-class core tiles,
and may fail with non-standard SMM or custom software models.
config DEBUG_VEXPRESS_UART0_CA9
bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
depends on ARCH_VEXPRESS
help
This option selects UART0 at 0x10009000. Except for custom models,
this applies only to the V2P-CA9 tile.
config DEBUG_VEXPRESS_UART0_RS1
bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
depends on ARCH_VEXPRESS
help
This option selects UART0 at 0x1c090000. This applies to most
of the tiles using the RS1 memory map, including all new A-class
core tiles, FPGA-based SMMs and software models.
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_LL_UART_NONE
bool "No low-level debugging UART"
ARM: initial multiplatform support This lets us build a multiplatform kernel for experimental purposes. However, it will not be useful for any real work, because it relies on a number of useful things to be disabled for now: * SMP support must be turned off because of conflicting symbols. Marc Zyngier has proposed a solution by adding a new SOC operations structure to hold indirect function pointers for these, but that work is currently stalled * We turn on SPARSE_IRQ unconditionally, which is not supported on most platforms. Each of them is currently in a different state, but most are being worked on. * A common clock framework is in place since v3.4 but not yet being used. Work on this is on its way. * DEBUG_LL for early debugging is currently disabled. * THUMB2_KERNEL does not work with allyesconfig because the kernel gets too big [Rob Herring]: Rebased to not be dependent on the mass mach header rename. As a result, omap2plus, imx, mxs and ux500 are not converted. Highbank, picoxcell, mvebu, and socfpga are converted. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Acked-by: Jamie Iles <jamie@jamieiles.com> Cc: Dinh Nguyen <dinguyen@altera.com>
2012-09-06 12:41:12 -06:00
depends on !ARCH_MULTIPLATFORM
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
help
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
Say Y here if your platform doesn't provide a UART option
below. This relies on your platform choosing the right UART
definition internally in order for low-level debugging to
work.
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
help
Say Y here if you want the debug print routines to direct
ARM: debug: arrange Kconfig options more logically Arrange the Kconfig options in rough alphabetical order, and place the default 'none' and 'icedcc' options at the end. This prefers the platform specific debug option rather than the 'none' option, which is what we actually want. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-23 10:44:05 -07:00
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.
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
Merge branch 'devel-stable' into for-linus Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
2012-03-27 04:30:31 -06:00
config DEBUG_SEMIHOSTING
ARM: 7521/1: Fix semihosting Kconfig text It seems we were missing some text in the title for the semihosting DEBUG_LL option. Add in the "/O" and fix up some minor typos in the help text. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-06 14:24:32 -06:00
bool "Kernel low-level debug output via semihosting I/O"
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
help
Merge branch 'devel-stable' into for-linus Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
2012-03-27 04:30:31 -06:00
Semihosting enables code running on an ARM target to use
the I/O facilities on a host debugger/emulator through a
ARM: 7521/1: Fix semihosting Kconfig text It seems we were missing some text in the title for the semihosting DEBUG_LL option. Add in the "/O" and fix up some minor typos in the help text. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-06 14:24:32 -06:00
simple SVC call. The host debugger or emulator must have
Merge branch 'devel-stable' into for-linus Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
2012-03-27 04:30:31 -06:00
semihosting enabled for the special svc call to be trapped
otherwise the kernel will crash.
ARM: msm: Consolidate and move DEBUG_LL to DEBUG_LL choice Now that DEBUG_LL is a choice we can move MSM's homegrown choice menu to DEBUG_LL. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:03 -07:00
ARM: 7521/1: Fix semihosting Kconfig text It seems we were missing some text in the title for the semihosting DEBUG_LL option. Add in the "/O" and fix up some minor typos in the help text. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-06 14:24:32 -06:00
This is known to work with OpenOCD, as well as
Merge branch 'devel-stable' into for-linus Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
2012-03-27 04:30:31 -06:00
ARM's Fast Models, or any other controlling environment
that implements semihosting.
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
Merge branch 'devel-stable' into for-linus Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
2012-03-27 04:30:31 -06:00
For more details about semihosting, please see
chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
msm: Support DEBUG_LL on MSM8660 and MSM8960 Add support for DEBUG_LL on the 8660 and 8960 development boards. While we're here cleanup the uncompress.h code a bit. Avoid the use of readl/writel as those are Linux specific APIs that aren't guaranteed to work in the decompressor. Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-11-08 11:33:04 -07:00
ARM: 7072/1: debug: use kconfig choice for selecting DEBUG_LL UART Enabling CONFIG_DEBUG_LL (which is required for earlyprintk) hardwires the debug UART address into the kernel, so that we can print before the platform is initialised. If the user inadvertently selects multiple platforms with DEBUG_LL enabled, the UART address may not be correct and will likely cause the kernel to hang in the very early stages of boot. This patch, based on a skeleton from Russell, uses a Kconfig choice for selecting the DEBUG_LL UART, therefore allowing the user to make a choice about the supported platform when DEBUG_LL is enabled. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-01 11:58:51 -06:00
endchoice
ARM: move debug macros to common location Based on suggestion by Russell King, create a common location for debug macros and select the included debug macro file using config option. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk>
2012-08-30 23:03:46 -06:00
config DEBUG_LL_INCLUDE
string
default "debug/icedcc.S" if DEBUG_ICEDCC
ARM: highbank: move debug macros to include/debug Move highbank debug-macro.S over to common debug macro directory. Also, remove v7 specific movw/movt instructions so this can compile under v6 mode. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-08-30 23:04:22 -06:00
default "debug/highbank.S" if DEBUG_HIGHBANK_UART
ARM: mvebu: move debug macros to include/debug Move mvebu debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch>
2012-09-02 13:41:34 -06:00
default "debug/mvebu.S" if DEBUG_MVEBU_UART
ARM: picoxcell: move debug macros to include/debug Move picoxcell debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Jamie Iles <jamie@jamieiles.com>
2012-09-06 13:14:46 -06:00
default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
ARM: socfpga: move debug macros to include/debug Move socfpga debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
2012-09-06 13:11:28 -06:00
default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
ARM: vexpress: move debug macros to include/debug Move vexpress debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Pawel Moll <pawel.moll@arm.com>
2012-08-30 23:08:21 -06:00
default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1
ARM: move debug macros to common location Based on suggestion by Russell King, create a common location for debug macros and select the included debug macro file using config option. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk>
2012-08-30 23:03:46 -06:00
default "mach/debug-macro.S"
ARM: Add an earlyprintk debug console This patch allows an earlyprintk console if CONFIG_DEBUG_LL is enabled, using the printch asm function. The patch is based on the original work by Sascha Hauer. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz>
2009-12-09 03:02:18 -07:00
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.
ARM: 5841/1: a driver for on-chip ETM and ETB This driver implements support for on-chip Embedded Tracing Macrocell and Embedded Trace Buffer. It allows to trigger tracing of kernel execution flow and exporting trace output to userspace via character device and a sysrq combo. Trace output can then be decoded by a fairly simple open source tool [1] which is already sufficient to get the idea of what the kernel is doing. [1]: http://github.com/virtuoso/etm2human Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-01 06:00:51 -07:00
config OC_ETM
bool "On-chip ETM and ETB"
ARM: OC_ETM should not select ARM_AMBA The CONFIG_ARM_AMBA symbol is selected by the platforms that support AMBA, and the other platforms (e.g. orion) might not be able to build that code at all when they do not support the clk API. Instead, make sure that OC_ETM is only built on platforms that do support the amba subsystem already. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-09-07 02:02:35 -06:00
depends on ARM_AMBA
ARM: 5841/1: a driver for on-chip ETM and ETB This driver implements support for on-chip Embedded Tracing Macrocell and Embedded Trace Buffer. It allows to trigger tracing of kernel execution flow and exporting trace output to userspace via character device and a sysrq combo. Trace output can then be decoded by a fairly simple open source tool [1] which is already sufficient to get the idea of what the kernel is doing. [1]: http://github.com/virtuoso/etm2human Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-01 06:00:51 -07:00
help
Enables the on-chip embedded trace macrocell and embedded trace
buffer driver that will allow you to collect traces of the
kernel code.
ARM: kprobes: Add config option for selecting the ARM kprobes tests Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-27 05:36:58 -06:00
config ARM_KPROBES_TEST
tristate "Kprobes test module"
depends on KPROBES && MODULES
help
Perform tests of kprobes API and instruction set simulation.
ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process This patch introduces a new Kconfig option which, when enabled, causes the kernel to write the PID of the current task into the PROCID field of the CONTEXTIDR on context switch. This is useful when analysing hardware trace, since writes to this register can be configured to emit an event into the trace stream. The thread notifier for writing the PID is deliberately kept separate from the ASID-writing code so that we can support newer processors using LPAE, where the ASID is stored in TTBR0. As such, the switch_mm code is updated to perform a read-modify-write sequence to ensure that we don't clobber the PID on CPUs using the classic 2-level page tables. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-06 08:43:03 -06:00
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.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 16:20:36 -06:00
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