15:11 <somlo> \o/ https://lkml.org/lkml/2022/1/24/607

15:11 <tpb> Title: LKML: Ulf Hansson: Re: [PATCH v14 0/3] mmc: Add LiteSDCard mmc driver (at lkml.org)

15:12 <somlo> might be another while until it shows up in the official tree, but at this point it's just a matter of waiting :)

15:46 <_florent_> somlo: Great work! Thanks

15:47 <_florent_> (somlo: Still need to test LiteSATA on NexysVideo, will do before leaving the office...)

17:09 <somlo> _florent_: do you happen to know, should there be a direct contact between the dp0_[c2m|m2c]_[p|n] fpga pins connected to the LPC/FMC connector and the sata [a|b][+|-] (tx/rx pairs)? Or is there usually a capacitor connected inline?

17:09 <somlo> I've been thinking of taking an ohm-meter to see if my extension card connects the right fmc pins to the right sata pins, but that may not be conclusive if it's not supposed to be a direct electric contact :)

17:10 <somlo> and I noticed some sort of inline components soldered on the adapter card close to the SATA pin leads :)

17:10 <somlo> I'm very much a beginner when it comes to proper electrical engineering :)

17:13 <somlo> specifically, row-C 1,2 and 6,7 (https://fmchub.github.io/appendix/VITA57_FMC_HPC_LPC_SIGNALS_AND_PINOUT.html) vs. the sata pinout scheme (http://www.interfacebus.com/SATA_Pinout.html)

17:14 <somlo> ... and I've convinced myself that the fpga-to-fmc pins are correct here: https://github.com/litex-hub/litex-boards/blob/master/litex_boards/platforms/digilent_nexys_video.py#L184

17:15 <somlo> so it's a matter of whether I have a broken fmc-2-sata adapter, because the wiring clues all seem to check out and be correct

17:26 <somlo> _florent_: there *does* appear to be a 100nF capacitor inline between the FMC connector and whatever's on the other side (sata pins) in the schematic on page2 of http://mirror.ini.cmu.edu/litex/HTG-FMC-X4SFP-X4SATA.pdf

17:26 <somlo> so my ohm-meter plan to check for connectivity is likely not going to work :D

17:52 <tcal> In a build of mine that /uses/ LiteX, I'm hitting a typo in the meson.build file for picolibc/data: `pythondata_software_picolibc/data/meson.build:737:10: ERROR: configuration_data.set got unknown keyword arguments "descrption"` (this typo actually occurs twice). But for some reason I don't get an error when doing a pure LiteX build, even though the typo is there as well. SOLUTION: I was using the lastest `meson` from its

17:52 <tcal> repo (the pure LiteX build was using meson via pip3). When I backed off to the 0.61.1 tag, it worked again. I've opened an issue for picolibc.

19:43 <Johnsel> hello everyone

19:43 <somlo> _florent_: hmm, the antmicro fmc adapter schematics show 10nF capacitors (as opposed to the 100nF ones used on the HTG adapter) -- wonder what that means for the target operating SATA frequency being supported...

20:58 <Johnsel> :(

20:58 <Johnsel> Error (170012): Fitter requires 988 LABs to implement the design, but the device contains only 963 LABs

20:59 <Johnsel> I am trying to run linux-on-litex on an Arduino MKR Vidor 4000

20:59 <Johnsel> which is an altera cyclone 10 LP device

21:00 <Johnsel> any ideas where/how to optimize?

21:01 <Johnsel> platform/target are already minimal (1 clock, sdram and serial only)

21:11 <Johnsel> halving L2 seemed to have done the trick