Support for Silicon Image 3124 SATA controller?

[Dieter]

I don't see the Sil 3124 SATA controller listed in the
6.2 ata(4) man page.  Are there any plans to support it?
I'm told that it is a significant improvement over previous
Sil chips.  It even has documentation!

Overview:
	http://www.siliconimage.com/products/product.aspx?id=27
Datasheet:
	http://www.siliconimage.com/docs/SiI-DS-0160-C.pdf
Another, longer, datasheet
	http://gkernel.sourceforge.net/specs/sii/