Dear Stefano, [Joe added to Cc: list]
In message <51a8c479.6010...@denx.de> you wrote: > > > This means (in this case) that miiphy_restart_aneg() is called. And here > > the phy gets a software reset and autonegotiation restart command, wich > > can take up to 500 msces according to the datasheet. So when we would > > like to send out the 1st ARP request, the phy is busy with restart and > > negotiation. If I skip these commands, any tftp transfer is fast as > > lightning! About 150 msecs between pressing enter and the completion of > > a small file (68 bytes). > > > > Of course, re-initialisation of all parts for each transfer sounds like > > the safest solution. > > We discussed this issue many times, yes. I still wonder if we should not be able to wait until the PHY has complete auto-negotiation, before we send the first packet. There should be some status bit available we could poll for, rathr than relying on a delay (which will always have to be tuned for the worst case)? Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Quote from a recent meeting: "We are going to continue having these meetings everyday until I find out why no work is getting done." _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
