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ARM: dts: imx6-sr-som: increase at8035 PHY gigabit Tw parameter

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Increase the SmartEEE Tw parameter for Atheros PHYs to stop gigabit
links from sporadically dropping. Jon Nettleton found that a value
of 23 was the minimum to give a stable link, but testing with the
Com Express 7 module shows 24 is the minimum - so 23 may still be on
the margins. Use 24 instead for consistency across SolidRun platforms.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Russell King 2021-01-15 23:36:44 +00:00 committed by Shawn Guo
parent 71fa4e04ed
commit b73d538a01
1 changed files with 2 additions and 0 deletions
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arch/arm/boot/dts/imx6qdl-sr-som.dtsi
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@ -69,11 +69,13 @@ mdio {
ethernet-phy@0 {
reg = <0>;
qca,clk-out-frequency = <125000000>;
qca,smarteee-tw-us-1g = <24>;
};
ethernet-phy@4 {
reg = <4>;
qca,clk-out-frequency = <125000000>;
qca,smarteee-tw-us-1g = <24>;
};
};
};