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| amstan | is there a cool dev board that has USBC/Thunderbold/PCIe on it? | 04:58 |
|---|---|---|
| amstan | so i could unify it with my computer's memory | 04:59 |
| CarlFK | _florent_: https://github.com/timvideos/litex-buildenv/blob/master/Makefile#L170 MAKE_CMD=\ $(PYTHON) -u ./make.py \ | 05:36 |
| CarlFK | --platform=$(PLATFORM) \ --target=$(TARGET) \ ... | 05:36 |
| CarlFK | given the $params any guess as to what might work? | 05:37 |
| CarlFK | guess = dont' spend much time as I may be the only person that uses this to verify the parts still work | 05:38 |
| CarlFK | just because something stops working does not mean it needs to be fixed | 05:38 |
| mithro | @CarlFK The newer version of that tutorial is https://github.com/timvideos/litex-buildenv/wiki/HowTo-LCA2018-FPGA-Miniconf-VexRiscv-Renode | 05:40 |
| CarlFK | mithro: is there any point to fixing the old one? | 06:25 |
| mithro | CarlFK: Not really, unsure if the new version is worth fixing as LiteX BuildEnv should be retired sometime.... | 06:41 |
| mithro | https://github.com/litex-hub/linux-on-litex-vexriscv is a pretty good replacement for the Linux stuff | 06:41 |
| CarlFK | the new version has the same error | 06:43 |
| mithro | Log a bug and someone from Antmicro might take the time to fix, but don't count on it | 06:43 |
| CarlFK | https://github.com/timvideos/litex-buildenv/issues/751 | 06:50 |
| mithro | @CarlFK Feel free to add a "me too" and a log which is easily searchable? | 06:51 |
| CarlFK | k | 06:51 |
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| cr1901 | _florent_: Are any of the current cores in litex written in Amaranth? | 16:37 |
| cr1901 | (Under the soc/cores directory. I know minerva CPU is amaranth) | 16:37 |
| * cr1901 misses when he knew LiteX enough that he could create a SoC in an hour lol | 16:57 | |
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| tnt | Any clue what would cause the pcie core to go to Polling.Compliance ? | 20:01 |
| tnt | to give a little of context: this happens when loading a new bitstream when the machine is already booted and only if the machine was booted with a bitstream already loaded. Also if I reboot the PC, then the core will sync just fine (i.e. leave Compliance and go through training). | 20:03 |
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| _florent_ | cr1901: in litex directory, there is only Minerva for now. It could also be interesting to reuse properly integrate Luna in the future | 20:24 |
| _florent_ | tnt: sorry I saw your interesting results in the issue but haven't been able to have a closer look yet | 20:27 |
| tnt | TBH after the change I made I think the issue might be in the BIOS or ACPI tables. | 20:28 |
| _florent_ | tnt: Regarding the filtering of the Clk with the reset, I added it on 7-series since was required on a custom hardware, but we should maybe make it optional | 20:29 |
| tnt | When the PC boots without cards, the bios doesn't init anything and I have to do it myself, that's fine. But I guess when it detects a cards, it must start some monitoring process or something and when the link is lost it doesn't restart properly. | 20:30 |
| tnt | _florent_: What I was thinking was to possibly add a small reset counter block so that when the external reset is released, it re-enables the clock but keeps the internal reset asserted for a bit longer. | 20:31 |
| tnt | Although TBH ATM the way it works is "good enough" for my application, it's mostly a curiosity as to why it doesn't behave. | 20:32 |
| tnt | What's a bit more annoying is that x8 doesn't work. | 20:33 |
| _florent_ | tnt: Sorry I'm not sure to remember or find the behavior in the issue with x8? The board is not seen at all with lspci? | 20:35 |
| tnt | it enumerates fine and --ident works fine. But dma test just hangs. | 20:37 |
| tnt | I'll re-check tomorrow, and open a new issue about it with the tests / behaviors I observe. | 20:37 |
| _florent_ | ok, if you can also share the pcie_usp_support, I'll have a look | 20:43 |
| tnt | What do you mean ? I use the pcie_usp_support.v is in the litepcie repo. | 20:50 |
| tnt | Or did you mean the .xci ? | 20:51 |
| _florent_ | tnt: I need to have a look but the adaptation of pcie_usp_support is probably different between the x4 and x8 | 21:02 |
| tnt | yes it is. | 21:04 |
| tnt | But there is a x8 version in the repo. I didn't write it. | 21:04 |
| _florent_ | ok that's good then. I'll do some verification in the one present in the repository | 21:28 |
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