[PATCH v2] zImage-arm: get rid of static offset

[Simon Horman]

On Thu, May 01, 2014 at 12:42:05PM +0200, Daniel Mack wrote:
> The code in arch/arm/kexec-zImage-arm.c currently enforces a hard limit
> on the maximum size a dtb blob can occupy. This limit is set to 32k,
> which is quite low for device tree blobs nowadays.
> 
> Get rid of this assumption, and calculate the added size dynamically.
> For this, we need to slurp in the dtb file earlier in order to
> determine its size, because the memory hole allocation for 'base'
> takes this size into account.
> 
> For ATAGs, we keep the current value of 32k, which should in fact be
> enough.
> 
> With this change in place, the 'DTB too large!' error message can go
> away. Successfully tested on a AM335x board.
> 
> Signed-off-by: Daniel Mack <zonque at gmail.com>
> [s.neumann at raumfeld.com: Fix ATAGs case]
> Reported-and-tested-by: Sven Neumann <s.neumann at raumfeld.com>
> ---
> v2 includes a fixup from Sven Neumann for ATAGs driven boards.
> The patch is in tested on a larger number of machines by now.

Thanks, applied.