What is recommended way to partition mtdram device

[MikeW]

I require a partitioned mtdram device for system emulation purposes.

The documentation says that the ways to partition an MTD device are:
1) boot cmd line
2) table of data in device
3) create a map driver

If mtdram is to be loaded with modprobe (desktop Linux), that rules out 1).

So can I create partitions by dd-ing a partition table at the start of the
device ?
Can I create a map driver for the device to describe the partitions ?

Thanks,
MikeW