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authorJim Cromie <jim.cromie@gmail.com>2006-06-26 00:25:19 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:21 -0700
commit6ae7440e6b7a46f4c119c60580aa9384c1b463f7 (patch)
treed288e15b56c8eebf02b25ea92e3678d9f2c0fee4 /arch
parent19923c190e0932bf0ac1e1d06a48f5c3678dd0de (diff)
downloadop-kernel-dev-6ae7440e6b7a46f4c119c60580aa9384c1b463f7.zip
op-kernel-dev-6ae7440e6b7a46f4c119c60580aa9384c1b463f7.tar.gz
[PATCH] GTOD: add scx200 HRT clocksource
Add a GTOD clocksource driver based on the Geode SCx200's Hi-Res Timer. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/Kconfig20
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index db1f8b4..374fb50 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1050,13 +1050,23 @@ config SCx200
tristate "NatSemi SCx200 support"
depends on !X86_VOYAGER
help
- This provides basic support for the National Semiconductor SCx200
- processor. Right now this is just a driver for the GPIO pins.
+ This provides basic support for National Semiconductor's
+ (now AMD's) Geode processors. The driver probes for the
+ PCI-IDs of several on-chip devices, so its a good dependency
+ for other scx200_* drivers.
- If you don't know what to do here, say N.
+ If compiled as a module, the driver is named scx200.
- This support is also available as a module. If compiled as a
- module, it will be called scx200.
+config SCx200HR_TIMER
+ tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"
+ depends on SCx200 && GENERIC_TIME
+ default y
+ help
+ This driver provides a clocksource built upon the on-chip
+ 27MHz high-resolution timer. Its also a workaround for
+ NSC Geode SC-1100's buggy TSC, which loses time when the
+ processor goes idle (as is done by the scheduler). The
+ other workaround is idle=poll boot option.
source "drivers/pcmcia/Kconfig"
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