[U-Boot] [PATCH 5/6] x86: coreboot: Add default TSC frequency in the device tree

Christian Gmeiner christian.gmeiner at gmail.com
Tue Aug 14 06:45:56 UTC 2018


Am Fr., 10. Aug. 2018 um 11:39 Uhr schrieb Bin Meng <bmeng.cn at gmail.com>:
>
> It was observed sometimes U-Boot as the coreboot payload fails to
> boot on QEMU. This is because TSC calibration fails with no valid
> frequency. This adds default TSC frequency in the device tree.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>

Reviewed-by: Christian Gmeiner <christian.gmeiner at gmail.com>

> ---
>
>  arch/x86/dts/coreboot.dts | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/x86/dts/coreboot.dts b/arch/x86/dts/coreboot.dts
> index a94f781..e212f3d 100644
> --- a/arch/x86/dts/coreboot.dts
> +++ b/arch/x86/dts/coreboot.dts
> @@ -30,6 +30,10 @@
>                 stdout-path = "/serial";
>         };
>
> +       tsc-timer {
> +               clock-frequency = <1000000000>;
> +       };
> +
>         pci {
>                 compatible = "pci-x86";
>                 u-boot,dm-pre-reloc;
> --
> 2.7.4
>
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-- 
greets
--
Christian Gmeiner, MSc

https://christian-gmeiner.info


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