diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2015-02-05 23:42:21 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-02-06 12:07:42 -0700 |
| commit | ea94532461e166f6febdd9bda5caa8f1b127b39f (patch) | |
| tree | 151f5e1320e99ee859ca1a4ed91fa103ae3e6f3e /arch/x86/cpu | |
| parent | f56aeaa4accf541641e14343adfd4614dc4b67d0 (diff) | |
x86: quark: Bypass TSC calibration
For some unknown reason, the TSC calibration via PIT does not work on
Quark. Enable bypassing TSC calibration and override TSC_FREQ_IN_MHZ
to 400 per Quark datasheet in the Kconfig.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/cpu')
| -rw-r--r-- | arch/x86/cpu/quark/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/cpu/quark/Kconfig b/arch/x86/cpu/quark/Kconfig index 163caac660..bc961ef07c 100644 --- a/arch/x86/cpu/quark/Kconfig +++ b/arch/x86/cpu/quark/Kconfig @@ -7,6 +7,7 @@ config INTEL_QUARK bool select HAVE_RMU + select TSC_CALIBRATION_BYPASS if INTEL_QUARK @@ -118,4 +119,8 @@ config SYS_CAR_SIZE Space in bytes in eSRAM used as Cache-As-ARM (CAR). Note this size must not exceed eSRAM's total size. +config TSC_FREQ_IN_MHZ + int + default 400 + endif |