For all Kirkwood boards so far dram_init function is duplicated
dram_init function is moved to dram.c and relevant code from all
board specific files removed
If any board needs specific dram init handling than standard one,
then, a macro CONFIG_SYS_BOARD_DRAM_INIT should be defined in
board config header file and the dram_init function can be put
in board specific source file
For ex. keymile boards
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
The implementation is borrowed from the sheevaplug board and the Marvell
1.1.4 code. Unsupported (or untested) is the SD card, PCIe and SATA.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
