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Explorer
Explorer
8,653 Views
Registered: ‎11-12-2007

Zynq gmii_to_rgmii not working on 2015.1

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Hi,

since Vivado 2015.1 the gmii_to_rgmii IP is not working anymore. In 2015.1 the ip was updated to v4.0. I also tested the older IP v3.0 in 2015.1 (copied the IP into a local repository).

 

The problem is, that all the rgmii tx signals (txd + txctl) are inactive (low) rgmii_tx_clock runs good.

I didn't change any constraints or pin locations.

in 2014.4 + gmmi_to_rgmii v3.0 it runs fine.

 

Platform is Zynq 7015 484 and Vviado runs on Ubuntu 14.04 LTS.

 

any ideas?

 

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Explorer
Explorer
15,762 Views
Registered: ‎11-12-2007

Re: Zynq gmii_to_rgmii not working on 2015.1

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Moderator
Moderator
8,615 Views
Registered: ‎07-31-2012

Re: Zynq gmii_to_rgmii not working on 2015.1

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Hi,

 

Could you please recheck if the platfrom used is Zynq 7015? Because I dont find the same in Vivado 2015.1 device selection list.

 

Regards

Praveen

 

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Explorer
Explorer
8,610 Views
Registered: ‎11-12-2007

Re: Zynq gmii_to_rgmii not working on 2015.1

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Yes, device is xc7z015clg485-2 I can choose it in the project settings.

It works with 2014.4.

 

I can implement, create bootimage and flash my board. I was using the debug ILA and found out that the processing system does not send anything on ENET0 GMII, TX lines stay low, so it is not the fault of the GMII_TO_RGMII bridge.

 

I am using Linux 3.18 from Xilinx GIT. 

 

When I build the whole project with 2014.4 the TX GMII (still using the rgmii bridge) works.

 

Best regards,

tg

 

 

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Explorer
Explorer
15,763 Views
Registered: ‎11-12-2007

Re: Zynq gmii_to_rgmii not working on 2015.1

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Moderator
Moderator
8,352 Views
Registered: ‎04-17-2011

Re: Zynq gmii_to_rgmii not working on 2015.1

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The patch has been released in AR for 2015.1 : http://www.xilinx.com/support/answers/64531.html
This issue is fixed in 2015.2
Regards,
Debraj
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