I used A20 Datasheet V1.40.pdf And i see that emac can be mapped on port A and H. Port H8-11 and H14-27. Then i looked in A20-SOM-EVB_schematic.pdf and see that all this pins available on GPIO-3. And even V3.3 and GND which i used to suply PHY. What differential pairs you mean?
вторник, 11 ноября 2014 г., 14:29:33 UTC+2 пользователь Roberto Alcântara написал: > > I'm using same modules but one ethernet only, so I cant help so much. > > But as gmac is compatible with emac I think you should try EMAC on port H > to test a board layout/phy that you know is ok. > > I think Awsom EVB do not have differential pairs on gpio-3, so maybe you > have a hardware issue. > > cheers, > - Roberto > > But I think you should try to put EMAC on > > On Tue, Nov 11, 2014 at 2:55 AM, <[email protected] <javascript:>> > wrote: > >> I have A20-SOM-EVB, but i need 2 ethernets. So i make external board with >> LAN8710 and RJ45 and connect it to GPIO-3 on A20-SOM-EVB. A20 has 2 MAC >> (GMAC and EMAC). >> GMAC uses port A. And EMAC can use port A or port H(on my board on >> GPIO-3). I used Openwrt. Build kernel, fs u-boot and dtb. Checked thats >> GMAC is working. Then i make dts form dtb and modify it. I enable emac and >> set its pins to port H. But when i start both ethernets can see link, but >> can not even pings. Emac when trying pings send broken packets like: >> 6f:73:fe:96:6f:73:fe:96:6f:73:fe:96:6f:73:fe:96:6f:73:fe:96:6f:73:fe:96:6f:73:fe:96:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 >> Sorry for my english. >> Anybody run 2 ethernets on A20? >> >> DTS: >> /dts-v1/; >> >> / { >> > > > > > - Roberto > -- 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.
