[PATCH 7/7] ARM: Thumb-2: Restore sensible zImage header layout for CONFIG_THUMB2_KERNEL

[Uwe Kleine-König]

Hi Russell,

On Tue, Nov 16, 2010 at 08:35:20PM +0000, Russell King - ARM Linux wrote:
> On Tue, Nov 16, 2010 at 03:28:44PM -0500, Nicolas Pitre wrote:
> > On Tue, 16 Nov 2010, Russell King - ARM Linux wrote:
> > > Not used anymore - it's practically zero (and unused) for most cases
> > > now anyway.
> > 
> > I think it is worth preserving this layout regardless.  First of all 
> > this is really cheap to do, and if whatever bootloader out there is 
> > relying on it, at least the magic number, then better not break it 
> > freely.
> 
> It's already broken by the relocatable format - which has zero as the
> start address.  That's been in for a few years now, and no one even
> noticed that this header ended up with zero as the entry address.
> Therefore, I suggest that no one at all is using it.
I remember me creating a patch for U-Boot that ignored the uImage
header's load and entry address if it was an ARM-Linux image and the
linux header had the right magic and the entry address was zero.  I
don't know anything about it's current state, but it might still ship
with Digi's BSP.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |