u-boot.git/drivers/bootcount/bootcount_env.c, branch v2018.01

env: Rename getenv_hex(), getenv_yesno(), getenv_ulong()

2017-08-16T12:30:32+00:00

We are now using an env_ prefix for environment functions. Rename these
for consistency. Also add function comments in common.h.

Suggested-by: Wolfgang Denk 
Signed-off-by: Simon Glass

env: Rename common functions related to setenv()

2017-08-16T12:23:32+00:00

We are now using an env_ prefix for environment functions. Rename these
commonly used functions, for consistency. Also add function comments in
common.h.

Suggested-by: Wolfgang Denk 
Signed-off-by: Simon Glass

env: Drop saveenv() in favour of env_save()

2017-08-16T00:50:30+00:00

Use the env_save() function directly now that there is only one
implementation of saveenv().

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Denk 
Reviewed-by: Tom Rini

bootcount: store bootcount var in environment

2013-11-11T17:16:28+00:00

If no softreset save registers are found on the hardware
"bootcount" is stored in the environment. To prevent a
saveenv on all reboots, the environment variable
"upgrade_available" is introduced. If "upgrade_available" is
0, "bootcount" is always 0 therefore no need to save the
environment on u-boot boot, if "upgrade_available" is 1 "bootcount"
is incremented in the environment and environment gets written
on u-boot start.
So the Userspace Applikation must set the "upgrade_available"
and "bootcount" variable to 0 (for example with fw_setenv),
if a boot was successfully.

Signed-off-by: Heiko Schocher