Freescale's website has a few free software examples:
The sysinit.c file included in this Freescale download has examples of initializing the flex bus interface. After its initialized, software can read and write to that area based on how it was initialized.
http://www.freescale.com/...287&location=psp
I haven't viewed for myself, but the Freescale Linux BSP should also initialize and provide a driver that handles typical flash accesses on the flexbus.
http://www.freescale.com/...62468rH3YTLC00M99287
If you need more assistance, Logic Loader source code and Logic's linux BSP source code is also available for purchase.
If you would like assistance with a specific application, Logic can support you through a support contract. Contact
sales@logicpd.com for more information on any of these topics.
-Kurt