Dear "Gurumurthy Gowdar", In message <20091027063046.45327.qm...@f4mail-235-243.rediffmail.com> you wrote: > > > please let me know how to enable two Ethernet Ports in > U-boot for MPC8280 at booting time. After booting i should be able to > ping the two ports i.e. FCC1 and FCC2 only by connecting the ethernet > cable to the repective port (FCC1 & FCC2.
You don't. You don;t do this at all. U-Boot does not enable any peripherals "at booting time". This is a design principle, see http://www.denx.de/wiki/view/U-Boot/DesignPrinciples#2_Keep_it_Fast Ethernet ininitlization is only done when U-Boot attempts to perform a network command, and then only that single interface gets initialized which U-Boot is going to use. > currently i have enabled one port FCC2 as ethact port, can i change > this depending by which port i want to ping. Yes, you can toggle between several ports. But keep in mind that only one of them will be active at any time, if any at all. > i came to know about CONFIG_NET_MULTI whether this will be the > solution for using two ports at a time. You cannot use two ports at the same time, only one or the other. But it is possible to switch at runtime (either automatically when a download fails or manually by setting the "ethact" environment variable accordingly). 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 If it went on at this rate, in several billion years he'd be rich beyond his wildest dreams! - Terry Pratchett, _Soul Music_ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot