On Fri, Sep 12, 2008 at 08:54:29PM +0200, Arnaud Patard wrote: > I don't know which iop32x configurations are enabled in the default > iop32x kernel but there are some boards with e1000 which do have the > eeprom so imho unless you do some kind of runtime detection, I fear > you'll break theses boards.
Well looking at the datasheet of one of the e1000 chips, it looks like if you check the contents of EEPROM_INIT_CONTROL1_REG in the eeprom data, then a check of (value & 0xc000 == 0x4000) will tell you that the eeprom is valid, and otherwise you have no eeprom or an invalid eeprom. So if you detect that no valid eeprom is present, check if the existing MAC address is a valid one, and if so, leave the chip alone and assume it is a board with no eeprom but some other method of configuring it. -- Len Sorensen ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel
