The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Device Tree really improves code maintainability and is now
available for SPL too.

This is the state-of-the-art implementation in U-boot.

The board files (platform data) are no longer needed.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

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

The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Support xHCI host driver used on Panasonic UniPhier platform.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: NMarek Vasut <marex@denx.de>

Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>