Nios® II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
12452 Discussions

A10 HPS EMAC w Marvell 88E1512 - TX fine - can't RX

Altera_Forum
Honored Contributor II
1,147 Views

I have a custom Arria 10 SoC board with a Marvell 88E1512 PHY attached to the HPS EMAC0 that I'm trying to get working with Linux. The kernel boots and upon running dhcp (or ping with a static IP) - there are 0 RX Bytes reported. I can see my ping or dhcp request from wireshark, so I am indeed transmitting just fine. But I can't receive. I have looked at the signals on the PCB, and all signals appear to be working (i.e.: I can see the activity when I ping, etc.). Has anyone implemented a PCB with an A10 + Marvell PHY? Any ideas what could be the issue? Maybe an issue in the device tree source? 

 

Thanks, 

John
0 Kudos
1 Reply
Altera_Forum
Honored Contributor II
304 Views

Hi John, 

I use Cyclone V and 88E1512, and find the same issue as you. 

Have you fixed this Rx issue? 

BR 

Simon
Reply