[PATCH v4 05/12] Documentation: net: phy: Add phy-is-internal binding
david.wu at rock-chips.com
Thu Aug 10 03:57:40 PDT 2017
Hi Andrew, Florian
在 2017/8/10 8:20, Andrew Lunn 写道:
> Hi Florian, David.
> I'm happy with the property name. But i think the text needs more
> description. We deal with Ethernet switches with integrated PHYs. Yet
> for us, this property is unneeded.
> Seeing this property means some bit of software needs to ensure the
> internal PHY should be used, when given the choice between an internal
> and external PHY. So i would say something like:
> If set, indicates that the PHY is integrated into the same
> physical package as the Ethernet MAC. If needed, muxers should be
> configured to ensure the (internal) PHY is used. The absence of this
> property indicates the muxers should be configured so that the
> external PHY is used.
Are we supposed to replace the words "internal" with "integrated" here?
So we have three kinds of PHY, they are intenal, external and integrated
> This last part is important. If the bootloader has set the internal
> PHY to be used, you need to reset it. Otherwise we are going to get
> into a mess sometime later and need to add a phy-is-external property.
More information about the Linux-rockchip