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authorAndres Salomon <dilinger@queued.net>2007-10-12 23:04:06 +0200
committerThomas Gleixner <tglx@inhelltoy.tec.linutronix.de>2007-10-12 23:04:06 +0200
commit8f36881b3c972ebc019195692849f22488f9c0a3 (patch)
treedd14aeb1fdb6f516f154a276d21f82c58d5e35b3 /arch/i386
parent83d7384f8d4aa216b49cf9cb286ea743054b119f (diff)
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x86: Geode MFGPT clock event device support
Add support for an MFGPT clock event device; this allows us to use MFGPTs as the basis for high-resolution timers. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Andi Kleen <ak@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 2d85e4b..6bbbc27 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1206,6 +1206,16 @@ config SCx200HR_TIMER
processor goes idle (as is done by the scheduler). The
other workaround is idle=poll boot option.
+config GEODE_MFGPT_TIMER
+ bool "Geode Multi-Function General Purpose Timer (MFGPT) events"
+ depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS
+ default y
+ help
+ This driver provides a clock event source based on the MFGPT
+ timer(s) in the CS5535 and CS5536 companion chip for the geode.
+ MFGPTs have a better resolution and max interval than the
+ generic PIT, and are suitable for use as high-res timers.
+
config K8_NB
def_bool y
depends on AGP_AMD64