tree f1e66358f067240368b3b3b70514f7b8b3c49dc5
parent 7f9b9f318ff152bd8d2e8b573708e2bdc088c1b1
author York Sun <york.sun@nxp.com> 1488819754 -0800
committer York Sun <york.sun@nxp.com> 1489506243 -0700

armv8: layerscape: Update early MMU for DDR after initialization

In early MMU table, DDR has to be mapped as device memory to avoid
speculative access. After DDR is initialized, it needs to be updated
to normal memory to allow code execution. To simplify the code,
dram_init() is moved into a common file as a weak function.

Signed-off-by: York Sun <york.sun@nxp.com>