From: Anatolij Gustschin <agust@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] iMX8QXP MEK: no ethernet
Date: Fri, 1 Mar 2019 13:26:07 +0100 [thread overview]
Message-ID: <20190301132607.0f3e297a@crub> (raw)
In-Reply-To: <a866feb8-9df9-08d8-05d5-afde418bc82b@denx.de>
Hi Stefano,
On Fri, 1 Mar 2019 12:19:41 +0100
Stefano Babic sbabic at denx.de wrote:
...
> What about to change this in DT ?
>
> diff --git a/arch/arm/dts/fsl-imx8qxp-mek.dts
> b/arch/arm/dts/fsl-imx8qxp-mek.dts
> index 41f7ec1763..b6c4593334 100644
> --- a/arch/arm/dts/fsl-imx8qxp-mek.dts
> +++ b/arch/arm/dts/fsl-imx8qxp-mek.dts
> @@ -223,7 +223,7 @@
> fsl,magic-packet;
> status = "okay";
> phy-reset-gpios = <&pca9557_a 4 GPIO_ACTIVE_LOW>;
> - phy-reset-duration = <10>;
> + phy-reset-duration = <150>;
This will extend the time for holding the PHY in reset state, but 10ms was already enough
to reset the PHY. The problem is that after reset state is deactivated, the PHY cannot be
detected unless we wait about 150 ms in fec_gpio_reset() after removing the reset level.
I don't now the reason why this happens.
--
Anatolij
next prev parent reply other threads:[~2019-03-01 12:26 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 12:27 [U-Boot] iMX8QXP MEK: no ethernet Andrejs Cainikovs
2019-02-28 22:45 ` Anatolij Gustschin
2019-03-01 9:50 ` Andrejs Cainikovs
2019-03-01 10:05 ` Anatolij Gustschin
2019-03-01 11:19 ` Stefano Babic
2019-03-01 12:26 ` Anatolij Gustschin [this message]
2019-03-01 12:30 ` Andrejs Cainikovs
2019-03-01 12:36 ` Stefano Babic
2019-03-01 13:00 ` Anatolij Gustschin
2019-03-01 13:37 ` Andrejs Cainikovs
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