Re: [PATCH v3] ARM: dts: imx: Fix the AR803X phy-mode

[Shawn Guo <shawnguo@kernel.org>]

On Wed, Apr 03, 2019 at 07:12:41PM -0300, Fabio Estevam wrote:
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
> 
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
> 
> Quoting Andrew Lunn:
> 
> "The problem here is, all the DTs were broken since day 0. However,
> because the PHY driver was also broken, nobody noticed and it
> worked. Now that the PHY driver has been fixed, all the bugs in the
> DTs now become an issue"
> 
> To fix this problem, the phy-mode property needs to be "rgmii-id",  which
> has the following meaning as per 
> Documentation/devicetree/bindings/net/ethernet.txt:
> 
> "RGMII with internal RX and TX delays provided by the PHY, the MAC should
> not add the RX or TX delays in this case)"
> 
> Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with
> successfully restored networking.
> 
> Based on the initial submission from Steve Twiss for the
> imx6qdl-sabresd.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> Tested-by: Baruch Siach <baruch@tkos.co.il>
> Tested-by: Soeren Moch <smoch@web.de>
> Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
> Tested-by: Adam Thomson <Adam.Thomson@diasemi.com>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
> Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Applied, thanks.

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