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| 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/TQM855M.h | |
| parent | eb6da8050797c204c9d010548424186c7ce32fc1 (diff) | |
| download | u-boot-imx-67c31036acaaaa992fc346cc89db0909a7e733c4.zip u-boot-imx-67c31036acaaaa992fc346cc89db0909a7e733c4.tar.gz u-boot-imx-67c31036acaaaa992fc346cc89db0909a7e733c4.tar.bz2 | |
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/TQM855M.h')
| -rw-r--r-- | include/configs/TQM855M.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/configs/TQM855M.h b/include/configs/TQM855M.h index 77c2f11..cd5212e 100644 --- a/include/configs/TQM855M.h +++ b/include/configs/TQM855M.h @@ -232,6 +232,8 @@ #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SECT_SIZE) #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE) +#define CFG_USE_PPCENV /* Environment embedded in sect .ppcenv */ + /*----------------------------------------------------------------------- * Hardware Information Block */ |