tree 249b0b2ae6c1b088c358b8b150dabe2b839c16db
parent 6232791833785ae591b211609f6f7c4faa7c6e55
author Max Filippov <jcmvbkbc@gmail.com> 1395421480 +0400
committer Max Filippov <jcmvbkbc@gmail.com> 1396388154 +0400

xtensa: handle memmap kernel option

This option is useful for reserving memory regions for secondary cores
in AMP configurations.

Implement the following memmap variants:
- memmap=nn[KMG]@ss[KMG]: force usage of a specific region of memory;
- memmap=nn[KMG]$ss[KMG]: mark specified memory as reserved;
- memmap=nn[KMG]: set end of memory.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>