linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am62a7-phyboard-lyra-rdk: Update ethernet internal delay

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Message-ID: <92066fdd-9e2f-4132-add0-9c296a119f3b@phytec.de>
Date: Mon, 7 Oct 2024 11:00:05 +0200
From: Wadim Egorov <w.egorov@...tec.de>
To: Nathan Morrisson <nmorrisson@...tec.com>, <nm@...com>, <vigneshr@...com>,
	<kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <upstream@...ts.phytec.de>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62a7-phyboard-lyra-rdk: Update
 ethernet internal delay



Am 05.10.24 um 00:10 schrieb Nathan Morrisson:
> Update the RGMII delay to 2.5ns to improve performance. We use an
> additional mapper board for the am62a7 phyBOARD Lyra which makes this
> delay necessary.
> 
> Signed-off-by: Nathan Morrisson <nmorrisson@...tec.com>

Reviewed-by: Wadim Egorov <w.egorov@...tec.de>

> ---
>   arch/arm64/boot/dts/ti/k3-am62a7-phyboard-lyra-rdk.dts | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-phyboard-lyra-rdk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-phyboard-lyra-rdk.dts
> index 3b93409b23e7..77e5fef618ba 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-phyboard-lyra-rdk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-phyboard-lyra-rdk.dts
> @@ -16,3 +16,7 @@ / {
>   		     "phytec,am62a-phycore-som", "ti,am62a7";
>   	model = "PHYTEC phyBOARD-Lyra AM62A7";
>   };
> +
> +&cpsw3g_phy3 {
> +	ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_50_NS>;
> +};