LinuxQuestions.org - Cant set dma mode with hdparm and SiS 5513 IDE

Hi there!

I am having the following problem with setting DMA mode on my SIS 5513 IDE. All help hugely appreciated.

hdparm -d 1 /dev/hda gives the following error:

/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)

cat /proc/pci says:

IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 0).
Master Capable. Latency=128.
I/O at 0x1000 [0x100f].
Bus 0, device 2, function 6:

hdparm -i /dev/hda says:

/dev/hda:

Model=HTS548060M9AT00, FwRev=MGBOA53A, SerialNo=MRLB20L4G85EPC
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=7877kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117210240
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

hdparm /dev/hda says:

/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 7296/255/63, sectors = 117210240, start = 0

and dmesg says:

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hda: HTS548060M9AT00, ATA DISK drive
hdc: UJDA740 DVD/CDRW, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 117210240 sectors (60012 MB) w/7877KiB Cache, CHS=7296/255/63
hdc: attached ide-cdrom driver.
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache
Uniform CD-ROM driver Revision: 3.12
Partition check:
hda: hda1 hda2 hda3

I am using the debian woody distribution on the latest stable kernel: 2.4.23

Thank you!