[U-Boot] [PATCH v9 6/9] x86: slimbootloader: Set TSC information for tsc_timer

[Bin Meng]

On Sat, Aug 3, 2019 at 4:30 PM Park, Aiden <aiden.park at intel.com> wrote:
>
> Slim Bootloader already calibrated TSC and provides it to U-Boot.
> Therefore, U-Boot does not have to re-calibrate TSC.
> Configuring tsc_base and clock_rate makes x86 tsc_timer driver bypass
> TSC calibration and use the provided TSC frequency.
> - Get TSC frequency from performance info hob
> - Set tsc_base and clock_rate for tsc_timer driver
>
> Signed-off-by: Aiden Park <aiden.park at intel.com>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
> ---
> Changes in v6:
>   * Use EFI_GUID
>   * Add more comments while setting tsc_base and clock_rate
>   * Apply code-review comments
>
> Changes in v3:
>   * Use HOB function from the common HOB library
>
>  arch/x86/cpu/slimbootloader/slimbootloader.c  | 37 +++++++++++++++++++
>  .../asm/arch-slimbootloader/slimbootloader.h  | 28 ++++++++++++++
>  2 files changed, 65 insertions(+)
>

Tested-by: Bin Meng <bmeng.cn at gmail.com>