Hi Florian, On Sun, Mar 21, 2021 at 08:30:07PM -0700, Florian Fainelli wrote: > Hi Christian, > > On 3/21/2021 4:29 PM, Cristian Ciocaltea wrote: > > Add new driver for the Ethernet MAC used on the Actions Semi Owl > > family of SoCs. > > > > Currently this has been tested only on the Actions Semi S500 SoC > > variant. > > > > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxx> > > [snip] > > Do you know the story behind this Ethernet controller? I just happened to get a board based on the S500 SoC, so I took this opportunity to help improving the mainline kernel support, but other than that I do not really know much about the hardware history. > The various > receive/transmit descriptor definitions are 99% those defined in > drivers/net/ethernet/stmmicro/stmmac/descs.h for the normal descriptor. That's an interesting observation. I could only assume the vendor did not want to reinvent the wheel here, but I cannot say if this is a common design scheme or is something specific to STMicroelectronics only. > The register layout of the MAC looks completely different from a > dwmac100 or dwmac1000 however. Most probably this is Actions specific.. > -- > Florian
