I'm having some trouble with the lowboot config on the MPC5200LITE.
In looking through the configs, I notice, where TEXT_BASE=0xFF000000 #define ENVADDR=CFG_FLASH_BASE+30000
Since the u-boot image goes from FF000000 to FF035250, this would appear to drop the environment inside the u-boot code. This is apparently confirmed by the fact that when I do saveenv, u-boot will not come up anymore. (this is without setting any environment variables, even).
When I write a virgin copy of u-boot to the flash, the addresses at FF0030000 appear to hold something other than environment values. After saveenv, they hold environment variables, and everything after the values is filled with zeroes (and u-boot is dead).
Is there a particular reason for having the ENV below the end of the u-boot image? Is there a better place to put it? Possibly the beginning of the next sector (0xFF040000)
Victor Wren
Victor Wren Designer, Timension Inc. 1350 C Pear Ave Mountain View CA 94043 (650) 564-9397 Fax: (650) 564-9398 Opinions stated in this letter are not necessarily those of Timension Inc. or the management. All Rights Reserved. No spitting.