I've been doing alot of research on support for these SATA RAID chipsets. Problem is, most these chipsets actually use Software RAID, not Hardware RAID.
If the system was truely hardware RAID, it would present a single disk to your OS, regardless of the OS.
Any RAID setup that requires a software driver to work is actually oftware RAID, not hardware RAID.
Linux does have drivers for some RAID chipsets, but instead of trying to get some unsupported, propietary driver to work with your system, you may be better off with the MD driver, which is open-source and well supported.
Here is another excellent summary: