Hi, Thanks for your review.
On Fri, Feb 12, 2021 at 10:32:09AM +0100, Arnd Bergmann wrote: > On Fri, Feb 12, 2021 at 4:03 AM Nobuhiro Iwamatsu > <nobuhiro1.iwama...@toshiba.co.jp> wrote: > > @@ -384,6 +398,16 @@ spi6: spi@28146000 { > > #size-cells = <0>; > > status = "disabled"; > > }; > > + > > + piether: ethernet@28000000 { > > + compatible = "toshiba,visconti-dwmac"; > > Shouldn't there be a more specific compatible string here, as well as the > particular version of the dwmac you use? I rechecked the code again based on your point. I need to specify the version of dwmac. I also noticed that it could remove some unnecessary code. I will fix this. > > In the binding example, you list the device as "dma-coherent", > but in this instance, it is not marked that way. Can you find out > whether the device is in fact connected properly to a cache-coherent > bus? > > Note that failing to mark it as cache-coherent will make the device > rather slow and possibly not work correctly if it is in fact coherent, > but the default is non-coherent since a lot of SoCs are lacking > that hardware support. Thanks for point out. This hardware does not require dma-coherent. I will remove dma-coherent from DT binding document. > > Arnd > Best regards, Nobuhiro