tree 4f1476b5311f2aaaeef80d607d3b6089abd7e3b4
parent 11d6effeae2c0fc40af61fb17ae387c91ebda82a
author Masahiro Yamada <yamada.masahiro@socionext.com> 1450230626 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1450796907 +0900

ARM: uniphier: allow DDR function to return more precise error code

Return different error code depending on the reason so that the
caller can know the cause of the failure.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>