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    • Wolfgang Denk's avatar
      TQM8xx[LM]: Fix broken environment alignment. · 67c31036
      Wolfgang Denk authored
      
      With recent toolchains, the environment sectors were no longer aligned to
      sector boundaries. The reason was a combination of two bugs:
      
      1) common/environment.c assumed that CONFIG_TQM8xxL would be defined
         for all TQM8xxL and TQM8xxM boards. But "include/common.h", where
         this gets defined, is not included here (and cannot be included
         without causing lots of problems).
      
         Added a new #define CFG_USE_PPCENV for all boards which really
         want to put the environment is a ".ppcenv" section.
      
      2) The linker scripts just include environment.o, silently assuming
         that the objects in that file are really in the order in which
         they are coded in the C file, i. e. "environment" first, then
         "redundand_environment", and "env_size" last. However, current
         toolchains (GCC-4.x) reorder the objects, causing the environment
         data not to start on a flash sector boundary:
      
         Instead of:					we got:
      
      	40008000 T environment			40008000 T env_size
      	4000c000 T redundand_environment	40008004 T redundand_environment
      	40010000 T env_size			4000c004 T environment
      
         Note: this patch fixes just the first part, and cures the alignment
         problem by making sure that "env_size" gets placed correctly. However,
         we still have a potential issue because primary and redundant
         environment sectors are actually swapped, i. e. we have now:
      
      	40008000 T redundand_environment
      	4000c000 T environment
      	40010000 T env_size
      
         This shall be fixed in the next version.
      
      Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      67c31036
    • Wolfgang Denk's avatar
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