Added support to enable PEI0/PEI1 in DTS based on PCIe SerDes configuration

Signed-off-by: SangeethaRao <sangeetha.rao@lsi.com>
board/lsi: DDR Recovery Fix

The saved parameters were being used when they weren't valid!  This
commit adds a check for validity.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Added support for Gen2 speed change workaround for PEI0 x2/x1 and PEI1 x4/x2/x1 modes

Signed-off-by: SangeethaRao <sangeetha.rao@lsi.com>
Merge branch 'lsi-v2013.01.01' of github.com:lsigithub/lsi_axxia_uboot into lsi-v2013.01.01
board/lsi: Add Simulation as a Target

Add support for Axxia simulation as a new U-Boot
target.

Signed-off-by: John Jacques <john.jacques@lsi.com>