doc: dt: add documentation for pl172 memory bindings

Add documentation for configuration and timing setup of
static memory devices on the ARM PL172 controller.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Joachim Eastwood 2015-07-13 23:20:12 +02:00 • committed by Olof Johansson
commit 18eb5e9fb2