* Catalin Marinas [off-list ref] [120814 11:00]:

+3. Decompress the kernel image
+------------------------------
+
+Requirement: OPTIONAL
+
+The AArch64 kernel does not provide a decompressor and therefore
+requires gzip decompression to be performed by the boot loader if the
+default Image.gz target is used.  For bootloaders that do not implement
+this requirement, the larger Image target is available instead.

Maybe add something here about why AArch64 does not provide a
decompressor? That's something everybody will wonder while reading
this part.

+- Caches, MMUs
+  The MMU must be off.
+  Instruction cache may be on or off.
+  Data cache must be off and invalidated.

External caches must be configured by bootloader but set to disabled
state?

Other than that:

Acked-by: Tony Lindgren <tony@atomide.com>