Hi, On 07/16/2014 02:56 PM, [email protected] wrote: > Hi, > I have evaluation board from Olimex (A20-SOM) and I try connect second PHY to > emac port (GPIO PH08-PH11, PH14-PH27). First gmac bloc use together with > A20-SOM-EVB expansion board to A20-SOM. > > Sunxi linux find two gmac blocks, but both dont work (network cable > disconnected). > > What could be the reason? > > I have 2 variants: > 1. A20 in only one MAC block that can be connected to different interfaces > (RGMII/MII) to external PHY. > 2. If MAC block two, there is no implementation in the Sunxi Linux of their > simultaneous operation. > > Can someone to explain?
AFAIK their is one GMAC and one EMAC (so 100mbit only) block in the A20, at least the EMAC may be routed to an alternative set of io-pins iirc. So with a proper dts file + a 100 mbit mii phy wired to the alternative io-pins you should be able to run with 2 nics. Regards, Hans -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
