Re: [PATCH] arm64: dts: stratix10: Change pad skew values for EMAC0 PHY driver

[Dinh Nguyen]

On 04/23/2018 10:01 PM, Ooi, Joyce wrote:
> The HPS EMAC0 drive strength is changed to 4mA because the initial 8mA
> drive strength has caused CE test to fail. This requires changes on the
> pad skew for EMAC0 PHY driver. Based on several measurements done, Tx
> clock does not require the extra 0.96ns delay.
> 
> Signed-off-by: Ooi, Joyce <joyce.ooi@xxxxxxxxx>
> ---
>  .../boot/dts/altera/socfpga_stratix10_socdk.dts    |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
> index 0007564..8785f78 100644
> --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
> +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
> @@ -79,7 +79,7 @@
>  			rxd2-skew-ps = <420>; /* 0ps */
>  			rxd3-skew-ps = <420>; /* 0ps */
>  			txen-skew-ps = <0>; /* -420ps */
> -			txc-skew-ps = <1860>; /* 960ps */
> +			txc-skew-ps = <900>; /* 0ps */
>  			rxdv-skew-ps = <420>; /* 0ps */
>  			rxc-skew-ps = <1680>; /* 780ps */
>  		};
> 

Applied, thanks!

Dinh