diff options
| author | Wolfgang Denk <wd@denx.de> | 2007-09-16 17:10:04 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2007-09-16 17:20:37 +0200 |
| commit | 67c31036acaaaa992fc346cc89db0909a7e733c4 (patch) | |
| tree | 51c721627703ec40a724e1503061554401743f05 /include/configs/FADS823.h | |
| parent | eb6da8050797c204c9d010548424186c7ce32fc1 (diff) | |
TQM8xx[LM]: Fix broken environment alignment.
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: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'include/configs/FADS823.h')
| -rw-r--r-- | include/configs/FADS823.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/configs/FADS823.h b/include/configs/FADS823.h index a562b2fa4e8..f810af2ceca 100644 --- a/include/configs/FADS823.h +++ b/include/configs/FADS823.h @@ -206,6 +206,7 @@ #define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_OFFSET 0x00040000 /* Offset of Environment Sector */ #define CFG_ENV_SIZE 0x40000 /* Total Size of Environment Sector */ +#define CFG_USE_PPCENV /* Environment embedded in sect .ppcenv */ /*----------------------------------------------------------------------- * Cache Configuration |