Re: PIIX4: DMA timeout issue

From: gshan
Date: Fri Aug 01 2008 - 04:39:55 EST



Alan/Jeff, I tried to install ATA driver on PIIX4. After fixing IRQ number
to 143 for primary and secondary channel. I got following output and
it seems the driver has been loaded sucessfully. However, I couldn't
see any information from /proc/devices. Do you have any ideas?

You need the SCSI disk driver - sd_mod.ko.

Thanks a lot. It seems it starts to work now.

piix_init: enter
piix_init_one: pci device: ï\
@
piix_init_one: vendor=0x00008086, device=0x00007111
piix_init_one: piix_host_priv allocated
piix_init_one: ent->driver_data=0
ata_pci_init_one: n_ports=2
ata_pci_init_one: pci device enabled
ata_pci_init_one: pci device class=0x00010180
ata_pci_init_one: legacy_mode=8
ata_pci_init_one: DMA mode has been set
ata_pci_init_legacy_port: port_mask=0x0000000b
ata_pci_init_legacy_port: ATA_PRIMARY_CMD=0x000001f0, ATA_PRIMARY_CTL=0x000003f6
ata_pci_init_legacy_port: ATA_SECONDARY_CMD=0x00000170, ATA_SECONDARY_CTL=0x00000376
ata_pci_init_legacy_port: BMDMA=0xfbf00000
, phys=0x00001000, phys_end=0x0000100f
ata_pci_init_legacy_port: probe_ent initialized
ata_pci_init_legacy_port: IRQ line of primary channel is 143
ata_pci_init_legacy_port: IRQ line of secondary channel is 143
ata_pci_init_one: Master set
ata1: PATA max UDMA/33 cmd 0xfbeff1f0 ctl 0xfbeff3f6 bmdma 0xfbf00000 irq 143
ata2: PATA max UDMA/33 cmd 0xfbeff170 ctl 0xfbeff376 bmdma 0xfbf00008 irq 143
scsi0 : ata_piix
scsi1 : ata_piix
ata2.00: ATA-6: HTE721010G9AT00, MCZOA51A, max UDMA/100
ata2.00: 195371568 sectors, multi 0: LBA48
ata2.00: configured for UDMA/33
1:0:0:0: Direct-Access ATA HTE721010G9AT00 MCZO PQ: 0 ANSI: 5
SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB)
sda: Write Protect is off
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB)
sda: Write Protect is off
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda4 < sda5 sda6 sda7 sda8 >
sd 1:0:0:0: Attached scsi disk sda
sd 1:0:0:0: Attached scsi generic sg0 type 0

Gavin
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