Messages in this thread | | | From | Andy Duan <> | Subject | RE: [EXT] Re: [PATCH net-next 0/1] net: fec: add C45 MDIO read/write support | Date | Tue, 20 Aug 2019 02:32:26 +0000 |
| |
From: Andrew Lunn <andrew@lunn.ch> > On Mon, Aug 19, 2019 at 05:11:14PM +0000, Marco Hartmann wrote: > > As of yet, the Fast Ethernet Controller (FEC) driver only supports > > Clause 22 conform MDIO transactions. IEEE 802.3ae Clause 45 defines a > > modified MDIO protocol that uses a two staged access model in order to > > increase the address space. > > > > This patch adds support for Clause 45 conform MDIO read and write > > operations to the FEC driver. > > Hi Marco > > Do all versions of the FEC hardware support C45? Or do we need to make use > of the quirk support in this driver to just enable it for some revisions of FEC? > > Thanks > Andrew
i.MX legacy platforms like i.MX6/7 series, they doesn't support Write & Read Increment. But for i.MX8MQ/MM series, it support C45 full features like Write & Read Increment.
For the patch itself, it doesn't support Write & Read Increment, so I think the patch doesn't need to add quirk support.
Andy
| |