[U-Boot] [PATCH 0/3] sunxi: Fix boot of Cubietruk and al.

[Dennis Gilmore]

El lun, 23-10-2017 a las 09:35 +0200, Maxime Ripard escribió:
> On Fri, Oct 20, 2017 at 04:33:57PM -0500, Dennis Gilmore wrote:
> > El jue, 19-10-2017 a las 16:58 +0200, Maxime Ripard escribió:
> > > On Thu, Oct 19, 2017 at 03:42:11PM +0100, Andre Przywara wrote:
> > > > Hi,
> > > > 
> > > > On 19/10/17 14:24, Maxime Ripard wrote:
> > > > > On Thu, Oct 19, 2017 at 02:03:55PM +0100, Andre Przywara
> > > > > wrote:
> > > > > > Hi,
> > > > > > 
> > > > > > On 19/10/17 09:26, Maxime Ripard wrote:
> > > > > > > Hi,
> > > > > > > 
> > > > > > > Most featureful boards, such as the Cubietruck, have been
> > > > > > > broken since
> > > > > > > the release 2017.09.
> > > > > > > 
> > > > > > > This is due to a size increase of the binary that will
> > > > > > > trip
> > > > > > > us across
> > > > > > > the size we've been using in the u-boot-sunxi-with-
> > > > > > > spl.bin
> > > > > > > file.
> > > > > > > 
> > > > > > > We would have two ways to work around it. The first one
> > > > > > > would
> > > > > > > be to
> > > > > > > just increase the offset of the environment. However,
> > > > > > > since
> > > > > > > it would
> > > > > > > break all the environments of our users and possibly the
> > > > > > > custom
> > > > > > > partition scheme that they would have created, it doesn't
> > > > > > > really seem
> > > > > > > like a smart move.
> > > > > > 
> > > > > > Is that really such a problem? How many people rely on
> > > > > > having
> > > > > > their
> > > > > > custom environment preserved over an update? (That's an
> > > > > > honest
> > > > > > question)
> > > > > 
> > > > > All of them, I guess. In your U-boot upgrade script, do you
> > > > > do a
> > > > > 'env
> > > > > default -a; saveenv' all the time ?
> > > > > 
> > > > > I know I don't.
> > > > 
> > > > Well, I never use the saved environment and always expected
> > > > some
> > > > user or
> > > > board specific environment to come from some file (boot.scr or
> > > > something
> > > > loaded via TFTP). But that's just my personal use, hence I was
> > > > asking.
> > > 
> > > Well, even if you want to boot to tftp, you'll need to have some
> > > setup
> > > to do, even just to use a different server IP, and that will be
> > > in
> > > the
> > > environment.
> > 
> > I personally just use pxe boot
> 
> It's not really about what personally you use, but what any user can
> use.
Not saying that it is. but how I use it is really simple for the user
to use without needing to have a ton of specific knowledge about how u-
boot works

> > dhcp
> > pxe get
> > pxe boot
> > and pick the right option. nothing needed on the client side.
> 
> It has the assumption that the DHCP server is setup properly, which
> might or might not be the case, especially when it comes to the
> server
> option being there and valid.
> 
> Maxime
Anyone doing something like this on X86 has to have the same setup. its
not that hard of a ask to assume that a pxe environment is available.
you can skip the dhcp part and set the serrver ip and system ip
manually, its just simpler to use dhcp

Dennis