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Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e992e647cc..ffcb4cb665 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -313,6 +313,26 @@ config FRAMEBUFFER_VESA_MODE endmenu +config TSC_CALIBRATION_BYPASS + bool "Bypass Time-Stamp Counter (TSC) calibration" + default n + help + By default U-Boot automatically calibrates Time-Stamp Counter (TSC) + running frequency via Model-Specific Register (MSR) and Programmable + Interval Timer (PIT). If the calibration does not work on your board, + select this option and provide a hardcoded TSC running frequency with + CONFIG_TSC_FREQ_IN_MHZ below. + + Normally this option should be turned on in a simulation environment + like qemu. + +config TSC_FREQ_IN_MHZ + int "Time-Stamp Counter (TSC) running frequency in MHz" + depends on TSC_CALIBRATION_BYPASS + default 1000 + help + The running frequency in MHz of Time-Stamp Counter (TSC). + source "arch/x86/cpu/ivybridge/Kconfig" source "arch/x86/cpu/queensbay/Kconfig" |