Monday, 2021-08-09

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simeonmHi! I'm trying to build a SOC for the Colorlight 5A-75B (v7) with both ethernet interfaces (liteeth etherbone on one and liteeth ethernet on the other). I am running into clock domain issues. I figured out I need to specify phy_cd, but now I get "ERROR: Cell 'TRELLIS_IO' cannot be bound to bel 'X0/Y38/PIOD' since it is already bound to cell 'TRELLIS_IO_1'". Here is what I've tried: https://gist.github.com/simeonmiteff/abe97d2e2904c5373919db4c2f56e46f, 01:13
simeonmany ideas?01:13
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david-sawatzke[mThe issue is that both phys share some pins like RESET MDIO & MDC, so any phy driver has to take that into account. You'll probably have to patch it or write your own phy driver14:15
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leonsI think reset should be fine given it’s an output? For MDIO and MDC it might be fine to just not connect them if the PHY is properly configured on startup.16:44
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simeonmdavid-sawatzke[m, leons: ok thanks I'll look into that22:37
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