Hi Jared, > I have been having troubles getting Netconsole to work on eTSEC2 of a > MPC8548 chip. I was hoping that maybe someone here might be able to > help me. > > I'm currently using U-Boot v2009.01. Using the bash script code located > in the README.Netconsole file, I have been able to successfully transmit > data from the 8548 to my host machine over netcat (using v0.7.1 on > Fedora Core 11). I've tested that this path works consistently by only > piping stdout to 'nc'. > > My problem comes when I try to send data from the host machine to the > 8548 (piping stdin to 'nc'). It seems like the data is getting > transmitted by Netconsole (verified using wireshark), but it isn't > getting consistently received by U-Boot. I set the ET_DEBUG flag to 1 > so that I could get extra debug information. On rare occasions I have > seen that packets are getting received, but this is very rarely. I do > know that the connection is OK. I am able to transfer files using tftp > without any problems. On one occasion I was able to print out an > environment variable (a small victory), but it happened randomly. > > Does anyone have any idea why this might be happening? Any help would > be greatly appreciated.
You should check what your actual network driver is doing. As U-Boot is not interrupt driven, the big question is if and how packets on the network interface are buffered when U-Boot is not currently idle waiting. Unfortunately I have to admit that I do not know the exact control flow of netconsole coupled to the tsec driver, but what you could do is to trace tsec_halt and startup_tsec. Maybe they are called too often and/or take too long... Cheers Detlev -- Some people unfortunately like jumping up and down about spaces but not code. [...] I'd rather read good poetry written in very bad hand writing than bad poetry written in beautiful handwriting, and I think the same is true of code. -- Alan Cox <20090701130018.115ce...@lxorguk.ukuu.org.uk> -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: d...@denx.de _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot