From: Quentin Schulz <quentin.schulz@xxxxxxxxxxx> Date: Thu, 4 Oct 2018 14:21:57 +0200 > The Ocelot switch has currently an hardcoded SerDes muxing that suits only > a particular use case. Any other board setup will fail to work. > > To prepare for upcoming boards' support that do not have the same muxing, > create a PHY driver that will handle all possible cases. > > A SerDes can work in SGMII, QSGMII or PCIe and is also muxed to use a > given port depending on the selected mode or board design. > > The SerDes configuration is in the middle of an address space (HSIO) that > is used to configure some parts in the MAC controller driver, that is why > we need to use a syscon so that we can write to the same address space from > different drivers safely using regmap. > > This breaks backward compatibility but it's fine because there's only one > board at the moment that is using what's modified in this patch series. > This will break git bisect. > > Even though this patch series is about SerDes __muxing__ configuration, the > DT node is named serdes for the simple reason that I couldn't find any > mention to SerDes anywhere else from the address space handled by this > driver. Series applied to net-next, thanks.
