netdev - Re: [PATCH v2 4/4] ARM: dts: dra72-evm-revc: fix correct phy delay

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Date:   Tue, 4 Oct 2016 15:14:56 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Mugunthan V N <mugunthanvnm@...com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        Sekhar Nori <nsekhar@...com>
Subject: Re: [PATCH v2 4/4] ARM: dts: dra72-evm-revc: fix correct phy delay

On Tue, Oct 04, 2016 at 06:26:07PM +0530, Mugunthan V N wrote:
> The current delay settings of the phy are not the optimal value,
> fix it with correct values.

This should be a separate patch, since it has nothing to do with impedance.

     Andrew

> 
> Signed-off-by: Mugunthan V N <mugunthanvnm@...com>
> ---
>  arch/arm/boot/dts/dra72-evm-revc.dts | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts b/arch/arm/boot/dts/dra72-evm-revc.dts
> index d626cd7..8472a8c 100644
> --- a/arch/arm/boot/dts/dra72-evm-revc.dts
> +++ b/arch/arm/boot/dts/dra72-evm-revc.dts
> @@ -59,16 +59,16 @@
>  &davinci_mdio {
>  	dp83867_0: ethernet-phy@2 {
>  		reg = <2>;
> -		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
> -		ti,tx-internal-delay = <DP83867_RGMIIDCTL_1_NS>;
> +		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> +		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
>  		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
>  		ti,min-output-imepdance;
>  	};
>  
>  	dp83867_1: ethernet-phy@3 {
>  		reg = <3>;
> -		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
> -		ti,tx-internal-delay = <DP83867_RGMIIDCTL_1_NS>;
> +		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> +		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
>  		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
>  		ti,min-output-imepdance;
>  	};
> -- 
> 2.10.0.372.g6fe1b14
>