Hi Wolfgang, On Wed, Oct 25, 2017 at 05:26:46PM +0200, Wolfgang Denk wrote: > Dear Maxime, > > In message <20171025122601.28224-4-maxime.rip...@free-electrons.com> you > wrote: > > The current environment has been hardcoded to an offset that starts to be > > an issue given the current size of our main U-Boot binary. > > > > Introduce an environment method from storing the environment raw in the MMC > > to a file in a FAT partition. Eventually, and hopefully before we reach > > that limit again, we will have most of our users using that setup, and > > we'll be able to retire the raw environment, and gain more room for the > > U-Boot binary. > > > > Signed-off-by: Maxime Ripard <maxime.rip...@free-electrons.com> > > --- > > cmd/nvedit.c | 1 + > > env/Kconfig | 12 ++++++--- > > env/Makefile | 1 + > > env/sunxi-transition.c | 59 > > ++++++++++++++++++++++++++++++++++++++++++ > > include/configs/sunxi-common.h | 2 +- > > include/environment.h | 1 + > > 6 files changed, 72 insertions(+), 4 deletions(-) > > create mode 100644 env/sunxi-transition.c > > I wonder why you need such a lot of code, and especiallay many > changes in global files for a feature which is probably of no use to > anybody else. > > Can the same not be acchieved by a little scripting and clever use of > "env export", file write, and "env import" commands?
I guess we'd need to compile support for multiple environments in this case so that we can import from either the old (raw MMC) or the new one (FS-based), and then save it to either of them. > Such scripting would have a lot of benefits: no need to touch any > code (especially not global code), and you don't need a new > version of U-Boot to "fix" all existing systems. > > I guess I must be missing some key requirement but I can't see it? One thing I'd really like would be to make it as smooth and without intervention as possible. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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