Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributormSGDMA, Qsys, and Linux Integration
So I've been trying to get the Modular SG-DMA working in a Qsys project tied with Linux. I can get it to show up in the device tree, be recognized by Linux in /sys, and it looks like the memory mappi...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Hi Derim. I am not sure if this example design from Rocketboards (http://rocketboards.org/foswiki/view/documentation/datamoverdesignexample) would convey you the info that you need. But worth having a look :) --- Quote End --- Thanks-- I think I'm going to debug this a bit myself a bit more as I'm thinking that there's either an endianess or timing issue with the HPS driving the mSGDMA directly when mapping /dev/mem. It would be great to know if anyone else has tried it as the examples all rely on a Nios core, which should be redundant for an HPS-based design. Depending, of course, on one's application.
