[U-Boot] [RFC 0/4] sunxi: Implement transition in environment

[Maxime Ripard]

Hi Tom,

Thanks for your feedback.

On Wed, Oct 25, 2017 at 11:32:03AM -0400, Tom Rini wrote:
> On Wed, Oct 25, 2017 at 02:25:57PM +0200, Maxime Ripard wrote:
> > Hi,
> > 
> > Here is an RFC to implement the transition from a raw environment in
> > the MMC to a FAT file in the first bootable partition.
> > 
> > This is based in a custom environment method that reuses the mmc and
> > fat codes as much as possible, and just deals with the fallbacks,
> > printing a warning when we're using the now legacy setup so that we
> > can warn our user of the future breakage.
> > 
> > This has just been compile tested, I'm mostly looking for feedback on
> > the appoach at this point.
> > 
> > Thanks!
> > Maxime
> > 
> > Maxime Ripard (4):
> >   env: Rework mmc environment ifdef
> >   env; fat: Allow the fat environment to be embedded by another one
> >   env: Create an environment transition method
> >   env: sunxi: Switch by default to the transition environment code
> > 
> >  cmd/nvedit.c                   |  1 +
> >  env/Kconfig                    | 14 +++++++---
> >  env/Makefile                   |  1 +
> >  env/fat.c                      | 12 +++++++--
> >  env/mmc.c                      | 24 +++++++++--------
> >  env/sunxi-transition.c         | 59 ++++++++++++++++++++++++++++++++++++++++++
> >  include/configs/sunxi-common.h |  2 +-
> >  include/environment.h          |  1 +
> >  8 files changed, 96 insertions(+), 18 deletions(-)
> >  create mode 100644 env/sunxi-transition.c
> 
> So, it looks like a lot of what Simon did so that we could have more
> than one environment type compiled in was a step in the right direction.
> What we should be able to move forward on is being able to link in both
> FAT and MMC and whatever is found work, along with a Kconfig choice for
> what should be the default one, or some other way that's not just link
> order to control that.

Yeah, I thought about that some more yesterday, and I guess having
multiple environments and a way for boards to change the ordering of
both load and store the environment.

Do you have a link to that serie from Simon?

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 801 bytes
Desc: not available
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20171026/126bcf7f/attachment.sig>