am33xx: Rework config_ddr to make DDR3 support easier.

In order to support DDR3 as well as DDR2, we need to perform the same
init sequence, but with different values.  So change config_ddr() to
toggle setting pointers/etc for what DDR2 wants, and then calling.

Signed-off-by: Tom Rini <trini@ti.com>
1 file changed