Re: FreeBSD-13.0-CURRENT-arm64-aarch64-ROCKPRO64-20201210-7578a4862f0 broken ?
Søren Schmidt <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
> On 14 Dec 2020, at 22.45, Søren Schmidt <[email protected] <mailto:[email protected]>> wrote: > > Went to the official u-boot sources and tried the newest shiniest 2021.01rc3 and it behaves a little bit better, it will boot 1 out of 3 times :) > > Probe looks like this now: > > U-Boot TPL 2021.01-rc3 (Dec 14 2020 - 23:17:52) > Channel 0: LPDDR4, 50MHz > BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB > Channel 1: LPDDR4, 50MHz > BW=32 Col=10 Bk=8 CS0 Row=16/15 CS=1 Die BW=16 Size=2048MB > 256B stride > lpddr4_set_rate: change freq to 400000000 mhz 0, 1 > lpddr4_set_rate: change freq to 800000000 mhz 1, 0 > > > The exact same as before. There is no difference in output from the working boots to the failing ones. > I’ll get on with adding some debug to what parameters get set during memory setup etc. > However I have this gut felling it is timing related and my board might just be too slow/fast for some operation that the ayufan version does slightly different (it boots every time). > > Anyhow, when it boots it runs rock stable, it builds worlds etc with no issues.. OK, I got a little further, it may not be memory related after all, from dozens ff boots with same u-boot etc I found that those that fails sees the SDcard like this: mmcsd0: 16GB <SDHC SMI 0.0 SN 00000000 MFG 03/2020 by 0 0x0000> at mmc0 50.0MHz/4bit/2048-block And those boots that works: mmcsd0: 16GB <SDHC SMI 0.0 SN 00000000 MFG 03/2020 by 0 0x0000> at mmc0 20.0MHz/4bit/2048-block So it suggests that either our code for setting the SDcard speed I flaky or marginal or the SD card / my pinebookpro is... However the exact same SD card can boot netbsd/openbsd dozens of times with no issues at all with 50MHz timings. Back to debugging :) -- Søren Schmidt [email protected] <mailto:[email protected]> / [email protected] <mailto:[email protected]> "So much code to hack, so little time” _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"