Tuesday, 2019-10-01

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xobs_florent_: would those Wishbone changes you made affect the ability to use the vexriscv debug bridge?12:52
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daveshahTrying to build latest linux-on-litex-vexriscv for versa and I'm getting some compile issues. I think everything is up to date.13:58
daveshahhttps://www.irccloud.com/pastebin/IWQDlIbY/13:58
tpbTitle: Snippet | IRCCloud (at www.irccloud.com)13:58
daveshahSeems like these are now lowercase in generated/csr.h?13:58
daveshahhttps://www.irccloud.com/pastebin/437aT0Ys/13:58
tpbTitle: Snippet | IRCCloud (at www.irccloud.com)13:58
daveshahAfter changing the uses of those macros to lowercase, it builds and works fine. But I don't think this is really an intended change14:03
somlodaveshah, _florent_: getting the same thing when building rocket (for ecp5versa and nexys4ddr)15:32
somlocommit 8be5824e is the "culprit", apparently15:45
daveshahsomlo: Incidentally, it would be interesting to see if there's any benefit from https://github.com/YosysHQ/yosys/pull/1425 and https://github.com/YosysHQ/nextpnr/pull/337 on Rocket15:50
tpbTitle: [WIP] ecp5: Add support for mapping 36-bit wide PDP BRAMs by daveshah1 · Pull Request #1425 · YosysHQ/yosys · GitHub (at github.com)15:50
daveshahif you have a chance15:50
somlodaveshah: oh, so xc7dsp got merged, and these are fixups on top of it... cool!15:52
daveshahYup15:52
somloI'll try them sometime today and report back (got dragged into some unrelated work over the last couple of weeks, gotta catch up with what happened while I wasn't paying attention :)15:53
somlodaveshah, _florent_: https://pastebin.com/DVcb0StH (fixup over 8be5824e)16:04
somloI should probably turn this into a proper litex PR16:04
somlohttps://github.com/enjoy-digital/litex/pull/27016:18
tpbTitle: soc/integration: ensure CSR constants are in uppercase by gsomlo · Pull Request #270 · enjoy-digital/litex · GitHub (at github.com)16:18
* somlo is off doing a complete toolchain update from github: trellis, nextpnr, and yosys16:30
xobsWhat kinds of pitfalls will I run into if I have a device on Wishbone that's in a different clock domain?  And how is arbitration handled?16:43
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_florent_somlo, daveshah: thanks for catching the case issue, it's merged19:46
_florent_xobs: i haven't really touched wishbone the the last days, i was mostly trying to cleanup SoCCore19:50
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