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Date: Mon, 27 Apr 2020 18:46:20 +0200 From: Andrew Lunn <andrew@...n.ch> To: Leonard Crestez <leonard.crestez@....com> Cc: Andy Duan <fugang.duan@....com>, David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>, Chris Healy <Chris.Healy@....aero>, dl-linux-imx <linux-imx@....com>, Chris Healy <cphealy@...il.com> Subject: Re: [PATCH] net: ethernet: fec: Replace interrupt driven MDIO with polled IO On Mon, Apr 27, 2020 at 03:19:54PM +0000, Leonard Crestez wrote: > Hello, > > This patch breaks network boot on at least imx8mm-evk. Boot works if I > revert just commit 29ae6bd1b0d8 ("net: ethernet: fec: Replace interrupt > driven MDIO with polled IO") on top of next-20200424. Hi Leonard Please could you try this: diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts index 951e14a3de0e..3c1adaf7affa 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts @@ -109,6 +109,7 @@ &fec1 { phy-handle = <ðphy0>; phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>; phy-reset-duration = <10>; + phy-reset-post-delay = <100>; fsl,magic-packet; status = "okay"; There is an interesting post from Fabio Estevam https://u-boot.denx.narkive.com/PlutD3Rg/patch-1-3-phy-atheros-use-ar8035-config-for-ar8031 Thanks Andrew
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