From a4c0a1d6e6669736e101ada54b81d529f7c84cde Mon Sep 17 00:00:00 2001 From: Patrick Georgi Date: Wed, 8 Sep 2010 10:58:02 +0000 Subject: Make timer2 the default choice for TSC initialization. For boards where timer2 is unusable, there's still the IO based initialization available using the Kconfig option TSC_CALIBRATE_WITH_IO Signed-off-by: Patrick Georgi Acked-by: Kevin O'Connor git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5787 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/cpu/x86/Kconfig | 2 +- src/cpu/x86/tsc/delay_tsc.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'src/cpu') diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index 325991e28e..3658ee7edc 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -19,7 +19,7 @@ config UDELAY_TSC bool default n -config TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 +config TSC_CALIBRATE_WITH_IO bool default n diff --git a/src/cpu/x86/tsc/delay_tsc.c b/src/cpu/x86/tsc/delay_tsc.c index 1127867638..a77a61c774 100644 --- a/src/cpu/x86/tsc/delay_tsc.c +++ b/src/cpu/x86/tsc/delay_tsc.c @@ -7,7 +7,7 @@ static unsigned long clocks_per_usec; -#if (CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 == 1) +#if !CONFIG_TSC_CALIBRATE_WITH_IO #define CLOCK_TICK_RATE 1193180U /* Underlying HZ */ /* ------ Calibrate the TSC ------- @@ -82,7 +82,7 @@ bad_ctc: return 0; } -#else /* CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 */ +#else /* CONFIG_TSC_CALIBRATE_WITH_IO */ /* * this is the "no timer2" version. -- cgit v1.2.3