ppc4xx: Fix Arches DDR2 initialization

Testing on AMCC Arches with the latest U-Boot version yielded that DDR2
initialization is currently broken. U-Boot hangs upon relocation to SDRAM
or crashes with random traps. This patch fixes this problem. Arches now
uses a different WRDTR and CLKTR default setting than Canyonlands/Glacier.

Signed-off-by: Stefan Roese <sr@denx.de>
1 file changed