01 Feb, 2018
2 commits
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For multiple env drivers to correctly implement fallback when
one environment fails to load (e.g. crc error), the return value
of env_import has to be propagated by all env driver's load
function.Without this change, the first driver that succeeds to load an
environment with an invalid CRC return 0 (success) and no other
drivers are checked.Signed-off-by: Simon Goldschmidt
Acked-by: Maxime Ripard -
There is more common code in mmc, nand and ubi env drivers that
can be shared by moving to env_import_redund.For this, a status/error value whether the buffers were loaded
are passed as additional parameters to env_import_redund.
Ideally, these are already returned to the env driver by the
storage driver. This is the case for mmc, nand and ubi, so for
this change, code deduplicated.Signed-off-by: Simon Goldschmidt
Acked-by: Maxime Ripard
21 Aug, 2017
1 commit
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Some of these were missed in the conversion.
Signed-off-by: Simon Glass
16 Aug, 2017
3 commits
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The load() methods have inconsistent behaviour on error. Some of them load
an empty default environment. Some load an environment containing an error
message. Others do nothing.As a step in the right direction, have the method return an error code.
Then the caller could handle this itself in a consistent way.Signed-off-by: Simon Glass
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Add a name to the driver and use that instead of the global variable
declared by each driver.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini -
Move over to use a the master implementation of the location drivers, with
each method calling out to the appropriate driver.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini
15 Aug, 2017
4 commits
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Set up a location driver for each supported environment location. At
present this just points to the global functions and is not used. A
later patch will switch this over to use private functions in each driver.There are several special cases here in various drivers to handle
peculiarities of certain boards:1. Some boards define CONFIG_ENV_IS_IN_FAT and CONFIG_SPL_ENV_SUPPORT but
do not actually load the environment in SPL. The env load code was
optimised out before but with the driver, it is not. Therefore a special
case is added to env/fat.c. The correct fix (depending on board testing
might be to disable CONFIG_SPL_ENV_SUPPORT.2. A similar situations happens with CONFIG_ENV_IS_IN_FLASH. Some boards
do not actually load the environment in SPL, so to reduce code size we
need to drop that code. A similar fix may be possible with these boards,
or it may be possible to adjust the environment CONFIG settings.Added to the above is that the CONFIG_SPL_ENV_SUPPORT option does not
apply when the environment is in flash.Obviously the above has been discovered through painful and time-consuming
trial and error. Hopefully board maintainers can take a look and figure
out what is actually needed.Signed-off-by: Simon Glass
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We want to use this name for all environment drivers. Update the nand
driver to use a more specific name.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini -
At present we have three states for the environment, numbered 0, 1 and 2.
Add an enum to record this to avoid open-coded values.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini -
About a quarter of the files in common/ relate to the environment. It
seems better to put these into their own subdirectory and remove the
prefix.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini