hi, On tx25 Uboot 2010.12 with standard tx25 config don't read correctly the environment see: http://www.mail-archive.com/u-boot@lists.denx.de/msg44454.html now i tryed without relocation and works fine, adding on tx25.h like version 2010.6 #define CONFIG_SKIP_RELOCATE_UBOOT #define CONFIG_SYS_GBL_DATA_SIZE 128 Davide