From: Fabio Estevam <festevam@gmail.com>
To: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: "shawnguo@kernel.org" <shawnguo@kernel.org>,
"andrew@lunn.ch" <andrew@lunn.ch>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 3/4] ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset
Date: Fri, 12 Mar 2021 08:34:45 -0300 [thread overview]
Message-ID: <CAOMZO5AbPeJmjXkyGfCoLpg5o06J32sh-aFgkCaDzMH_PYXDfA@mail.gmail.com> (raw)
In-Reply-To: <DB8PR04MB67954943EF24F23DBDD715D4E6909@DB8PR04MB6795.eurprd04.prod.outlook.com>
Hi Joakim,
On Thu, Mar 11, 2021 at 8:33 AM Joakim Zhang <qiangqing.zhang@nxp.com> wrote:
>
>
> Hi Fabio, Shawn, Andrew,
>
> I found the root cause is the schematic diagram defect, both ENET1_nRST and ENET2_nRST are connect to ENET_nRST, which means PHY0 and PHY1 can't be hardware reset independently. Revert the patch
> "ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset" is not enough, after IO expander probing, Q1/Q2 default is low level, PHY attached would fail. At our local side, give IO expander a default value, but I don't know if it is a common method. If you think it is ok, I can try to upstream that patch.
Sorry for the breakage. I have only tested normal operation when I
submitted the patch, without putting any interface down.
I was able to reproduce the problem and I will submit a patch to fix
the problem.
Thanks
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next prev parent reply other threads:[~2021-03-12 11:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 23:50 [PATCH 1/4] ARM: dts: imx6ul-14x14-evk: Fix SPI chipselect polarity Fabio Estevam
2021-01-07 23:50 ` [PATCH 2/4] ARM: dts: imx6ul-14x14-evk: Enable the GPIO expander Fabio Estevam
2021-01-08 1:02 ` Andrew Lunn
2021-01-18 0:10 ` Shawn Guo
2021-01-07 23:50 ` [PATCH 3/4] ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset Fabio Estevam
2021-01-08 1:03 ` Andrew Lunn
2021-01-18 0:10 ` Shawn Guo
2021-03-10 11:04 ` Joakim Zhang
2021-03-11 11:33 ` Joakim Zhang
2021-03-11 14:17 ` Andrew Lunn
2021-03-12 2:02 ` Joakim Zhang
2021-03-12 11:34 ` Fabio Estevam [this message]
2021-01-07 23:50 ` [PATCH 4/4] ARM: dts: imx6ul-14x14-evk: Add camera support Fabio Estevam
2021-01-18 0:11 ` Shawn Guo
2021-01-18 0:09 ` [PATCH 1/4] ARM: dts: imx6ul-14x14-evk: Fix SPI chipselect polarity Shawn Guo
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