[U-Boot-Users] DDR-II @ MPC8343A

David Hawkins
2008-03-25T18:08:37Z

Hi Andre,

> has anyone set up the DDR-II controller on a Freescale MPC8343A without ?
> As far as I can see there are only DDR-I boards from Freescale.
>
> Are there any patches not yet posted to handle this ?

Chances are that the MPC8343 DDR controller is much the same
as the MPC8349EA controller. Here's a couple of annotated
BDI2000 configuration files for the MPC8349E-MDS-PB loaded
with 2.5V DDR1, and the MPC8349EA-MDS-PB board loaded with
1.8V DDR2

ftp://www.denx.de/pub/BDI2000/mpc8349e_mds_pb.cfg
ftp://www.denx.de/pub/BDI2000/mpc8349ea_mds_pb.cfg

I'm not sure if it'll be of use, just wanted to mention it.

The U-Boot code for the MPC8349 handles both board types
transparently. I haven't delved into the code in too
much detail, but I think the code is using the SPD EEPROM
information to configure the controller appropriately
for DDR1 or DDR2 operation. You can probably use that
code as a reference to any changes required for your
MPC8343 code.

Regards,
Dave