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In the end I will write a device driver to handle the access part. Reads/writes from FPGA to the RAM are non coherent so using the /dev/mem interface would have introduced issues anyway. But for now I just want to test the interface from both linux and from the FPGA so I know this is all wired up correctly. Then I will make a nice device driver :). Thank you for answering my question and pointing to relevant materials!

John Smith
– John Smith

2019-04-30 18:33:47 +00:00
Commented Apr 30, 2019 at 18:33
1

Just as a quick comment memmap=900!124 would reserve 900 at offset 124. I want to reserve 124 at offset 900 so the correct option would be memmap=124!900.

John Smith
– John Smith

2019-05-01 09:35:50 +00:00
Commented May 1, 2019 at 9:35

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