Re: [U-Boot] [PATCH 2/3] x86: Allow a hardcoded TSC frequency provided by Kconfig

2015-01-03 Thread Bin Meng
Hi Simon, On Sun, Jan 4, 2015 at 10:31 AM, Simon Glass wrote: > Hi Bin, > > On 3 January 2015 at 07:40, Bin Meng wrote: >> By default U-Boot automatically calibrates TSC running frequency via >> MSR and PIT. The calibration may not work on every x86 processor, so >> a new Kconfig option CONFIG_T

Re: [U-Boot] [PATCH 2/3] x86: Allow a hardcoded TSC frequency provided by Kconfig

2015-01-03 Thread Simon Glass
Hi Bin, On 3 January 2015 at 07:40, Bin Meng wrote: > By default U-Boot automatically calibrates TSC running frequency via > MSR and PIT. The calibration may not work on every x86 processor, so > a new Kconfig option CONFIG_TSC_CALIBRATION_BYPASS is introduced to > allow bypassing the calibration

[U-Boot] [PATCH 2/3] x86: Allow a hardcoded TSC frequency provided by Kconfig

2015-01-03 Thread Bin Meng
By default U-Boot automatically calibrates TSC running frequency via MSR and PIT. The calibration may not work on every x86 processor, so a new Kconfig option CONFIG_TSC_CALIBRATION_BYPASS is introduced to allow bypassing the calibration and assign a hardcoded TSC frequency CONFIG_TSC_FREQ_IN_MHZ.