[U-Boot-Users] [PATCH] SMC91111 Tx interrupt handling and ethaddr handling

This patch contains several fixes/changes:

1) proper tx interrupt handling - packets must still be freed/releases manually on error even with autorelease enabled). - Tx int timeout is 100ms according to the manual. 2) reverts CTL_DEFAULT back to register default. AUTORELEASE is not the default...or this with default at init 3) removes 'getenv' and 'setenv' calls from 'smc_get_ethaddr' - don't think the ethernet driver should need to know about the environment, the data need is already passed to function via board info. - don't think ethernet driver should change environment, changing info is fine.