tree 005937e3c76bd22e630d257da68e47dac7435725
parent 8313315b9ab3a130784a2a7d0c4f329808690c0b
author Gabe Black <gabeblack@chromium.org> 1351942884 +0000
committer Simon Glass <sjg@chromium.org> 1354833041 -0800

x86: Reorder x86's post relocation memory layout

This changes the layout in decreasing addresses from:

1. Stack
2. Sections in the image
3. Heap

to

1. Sections in the image
2. Heap
3. Stack

This allows the stack to grow significantly more since it isn't constrained by
the other u-boot areas. More importantly, the generic memory wipe code assumes
that the stack is the lowest addressed area used by the main part of u-boot.
In the original layout, that means that u-boot tramples all over itself. In
the new layout, it works.

Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Simon Glass <sjg@chromium.org>