From 6ae7440e6b7a46f4c119c60580aa9384c1b463f7 Mon Sep 17 00:00:00 2001 From: Jim Cromie Date: Mon, 26 Jun 2006 00:25:19 -0700 Subject: [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 Cc: Roman Zippel Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/Kconfig | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index db1f8b40606..374fb50608a 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" -- cgit v1.2.3