In case we have restarted u-boot there is a chance that environment
buffer contains old environment (from the previous boot). If UBI volume
is zero size, ubi_volume_read() doesn't modify the buffer and exits
successfully.
We need to clear buffer manually before reading it from UBI, so the
invalid CRC will cause setting default environment in case that the UBI
volume is zero size.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
The variable "buf" in this function is a char array, and the
function ubi_volume_read is expecting a char *. In the call, the
address of the pointer is being taken, incorrectly passing a
char **. The compiler warning was being silenced by the cast.
Remove the address operator and the cast.
Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Tom Rini <trini@konsulko.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Now that we have a new header file for cache-aligned allocation, we should
move the stack-based allocation macro there also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Implement env_export() wrapper, so that all implementers of saveenv() don't
have to call hexport_r(), crc32() etc. sequence . This trims down a bit of
code duplication.
Signed-off-by: Marek Vasut <marex@denx.de>
UBI is a better place for the environment on NAND devices because it
handles wear-leveling and bad blocks.
Gluebi is needed in Linux to access the env as an MTD partition.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Marcin Niestroj
Kevin Smith
Simon Glass
Marek Vasut
Wolfgang Denk
Joe Hershberger