[U-Boot] [PATCH] mpc83xx: increase BOOTMAPSZ to 16MB

[Kim Phillips]

On Thu, 6 Nov 2008 16:31:26 +0300
Anton Vorontsov <avorontsov at ru.mvista.com> wrote:

> As space expands, so does the software. Today the kernel with built-in
> initramfs image is likely to not fit into 8MB limit. It feels safe to
> increase BOOTMAPSZ to 16MB, since the Linux actually maps 16MB on 6xx
> PPCs (two BATs, 8MB each).
> 
> Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
> ---
> 
> p.s. The patch for the whole tree is quite big, so let's start
> with 83xx.

ack, I'm ok with this operation starting in 83xx land, but it may be
worth investigating whether it can be made a one-shot directly with WD,
just as the CFG_ -> CONFIG_SYS_ switch just happened.  dunno. If we
don't hear from WD soon, I'll put this in mpc83xx's next branch.

> pp.s. Maybe we could fector out these defines into
> include/configs/ppc6xx-common.h?

sure, but maybe that can wait until the base domain granularity becomes
more accurately visible...I just took a look - I can't seem to find a
single non-coldfire board that doesn't set BOOTMAPSZ to 8MB (coldfire
boards set it to SDRAM_BASE + SDRAM_SIZE).  Anyway, I it looks like a
single patch might fit on this mailling list.

Kim