SII680 problems (IDE)

Hello,

i have an IDE controller with Silicon Image 0680A chipset (Class
0140: 1095:0680 Subsystem: 1771:1680) and have problems using any ide device on it (tested with Seagate and Quantum disks). i can read from the disk fine (hdparm -t shows about 40MB/sec at 100% sys load ?? but this is not the issue, first to get it working) but as soon as i try to write a single sector (partition table) i get:

hde: dma_timer_expiry: dma status == 0x20
hde: DMA timeout retry
hde: timeout waiting for DMA
hde: status error: status=0x58 { DriveReady SeekComplete DataRequest }

hde: drive not ready for command
hde: status timeout: status=0xd0 { Busy }

hde: no DRQ after issuing MULTWRITE
ide2: reset: success
hde: hde1
hde: hde1

(last 2 lines are because of fdisk) and it disables DMA and
continues to work but very very slow (in PIO mode i think).

	this is on linux-2.6.0-test6 and 2.4.22 (siimage.c ver. 1.06), this

is the boot message:

SiI680: IDE controller at PCI slot 0000:00:0d.0
SiI680: chipset revision 2
SiI680: BASE CLOCK == 133
SiI680: 100% native mode on irq 10

    ide2: MMIO-DMA at 0xf0808000-0xf0808007, BIOS settings: hde:pio, hdf:pio
    ide3: MMIO-DMA at 0xf0808008-0xf080800f, BIOS settings: hdg:pio, hdh:pio

hde: ST340016A, ATA DISK drive
ide2 at 0xf0808080-0xf0808087,0xf080808a on irq 10
hde: max request size: 64KiB
hde: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
hde:

patches, questions, solutions are wellcome, please CC: to me as I am
not on linux-kernel.

thank you.

 Catalin Muresan