AHCI Driver modification

Hello,

Background:
I am running uCLinux on a processor embedded in a FPGA, and need a
AHCI
support for
a device not on PCI but my own custom bus.

The kernel version is 2.6.20, so there is an AHCI driver under libATA.

Question:
What type of linux device driver should I enumerate my modified AHCI
driver as?

I am still a beginner to linux and driver development.

From what I understood in the book Linux Device Drivers,
I can develop it as a Block storage type device.

So is this the solution: convert driver type from PCI to Block?
From the user's point of view, will accessing it be different?

Thanks,
Eugene

.

Relevant Pages