I just can't tell you how exciting it is to have my SATA ports working!
That said, have you tried "hdparm -m16 /dev/sda" maybe it Just Works(tm) ?
On Mon, 2008-04-21 at 22:12 -0400, Ward Vandewege wrote:
Now that I've got all sata ports working on the s2891, bonnie++ tells me that the disks are much slower under coreboot than under the proprietary bios. Compare
http://ward.vandewege.net/coreboot/s2891/s2891-20080421-cb-bonnie++
and
http://ward.vandewege.net/coreboot/s2891/s2891-20080421-prop-bonnie++
Under the proprietary bios bonnie++ is about twice as fast as under coreboot.
When comparing hdparm output, I found that under coreboot none of the drives have multi mode enabled.
coreboot:
[ 0.000000] ata3.00: 488397168 sectors, multi 0: LBA48
proprietary:
[ 54.523384] ata3.00: 488397168 sectors, multi 16: LBA48