Am 31.05.2016 um 07:04 schrieb Michal Simek michal.simek@xilinx.com:
On 30.5.2016 21:36, Alexander Graf wrote:
On 05/30/2016 04:11 PM, Michal Simek wrote: Setup flag when default environment are used to be able to rewrite default distro boot variables based on SoC boot mode.
Signed-off-by: Michal Simek michal.simek@xilinx.com
I didn't find any way how to detect that default or saved variables are used. I want to have a flag to be able to rewrite boot_targets variable based on boot mode. Especially when SD boot mode is setup than SD should be primary boot devices, etc. When variables are saved boot_targets will be restored and SoC boot mode will be ignored. If you know better way how to do it, please let me know.
You may want to be able to do the same from inside a script, so I guess we should better have this as an environment variable itself again.
Was there any environment in past?
With again I meant "from C as well as from script".
There was a way to have environment variable reads return a value directly from code rather than go via environment storage. I guess we could expose the flag through that?
If you expose environment variable and then run saveenv this variable will be saved and restored again and your script behaves the same.
Not if we declare the environment variable read as callback ;).
Alex