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

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Message-Id: <20241004221049.1155022-1-nmorrisson@phytec.com>
Date: Fri,  4 Oct 2024 15:10:49 -0700
From: Nathan Morrisson <nmorrisson@...tec.com>
To: 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,
	w.egorov@...tec.de
Subject: [PATCH] arm64: dts: ti: k3-am62a7-phyboard-lyra-rdk: Update ethernet internal delay

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>
---
 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>;
+};
-- 
2.25.1