On 31.5.2016 08:39, Alexander Graf wrote: > > >> Am 31.05.2016 um 07:04 schrieb Michal Simek <michal.si...@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.si...@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 ;).
What do you mean? It is kind of interesting that this is not done already for others SoCs when you want to use distro config. :-) Cheers, Michal _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
