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>
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>
Move the Kconfig entries from plat-s3c to plat-samsung and plat-s3c24xx
as necessary. The S3C_BOOT entries and the DMA configuration can go to
plat-samsung. The low-level UART configurations are currently S3C2XX
specific and can go to plat-s3c24xx.
Eliminating plat-s3c from the build process will be submitted seperately.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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>
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>
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>
Remove the unused CONFIG_DEBUG_S3C_PORT as we currently only have
support for using the S3C UARTs via the low-level debug code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
SCALE: add ice dcc support
Tested on the ixp425 with the ice PEEDI
Ack-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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>
In early 2.6 days stack utilization instrumentation was made
configurable. Seems that arm misses the DEBUG_STACK_USAGE option.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rename DEBUG_S3C2410_PORT to DEBUG_S3C_PORT as well as
DEBUG_S3C2410_UART to DEBUG_S3C_UART as part of the updates
to moving to plat-s3c for S3C base support.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT to be
CONFIG_S3C_LOWLEVEL_UART_PORT as we move to using
plat-s3c for base of S3C operations.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
DEBUG_WAITQ appears to have been removed by others, but no one
removed the configuration option from ARM. Remote it from both
Kconfig.debug and all default configurations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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!
