Andrew Hall wrote: > Hi Mark, > > The device is a Nexcom NSA1083 appliance: > > http://www.nexcom.com/product/productshow.jsp?iid=13&pid=878 > > It's an OEM appliance that uses the Intel 965 chipset. We use it as one of > three platforms for our access control and compliance products as it has 8 > built in Ethernet ports and a dual core processor - with built in compact > flash. The older appliance that this new (1083) one is superseding also had > built in CF although this one apparently had separate PATA and SATA > controllers, whereas the 1083 has only one 4 channel ICH8 Intel SATA > controller which interfaces to one CF connector and one IDE connector via a > SATA to PATA bridge ( I don't know exactly what this bridge is or how it > interfaces to the SATA bus - but I can probably find this out from the > manufacturer). The CF is a standard 512MB Sandisk/Kingston chip that we boot > from and write configuration data to. .. I'm betting that the SATA/PATA converter is getting confused with the ata_piix driver's attempt to use MDMA2 on it. PIO appears to be working fine -- the BIOS uses it to boot, and libata uses it to do the IDENTIFY operation. So, try this hack, which should force ata_piix to use only PIO for the ICH8 chipset. So long as you don't have any real SATA drives, this might do the trick. Cheers --- linux/drivers/ata/ata_piix.c.orig 2007-06-27 11:20:51.000000000 -0400 +++ linux/drivers/ata/ata_piix.c 2007-06-28 13:32:27.000000000 -0400 @@ -526,8 +526,8 @@ .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR | PIIX_FLAG_AHCI, .pio_mask = 0x1f, /* pio0-4 */ - .mwdma_mask = 0x07, /* mwdma0-2 */ - .udma_mask = 0x7f, /* udma0-6 */ + .mwdma_mask = 0x00, /* mwdma0-2 */ + .udma_mask = 0x00, /* udma0-6 */ .port_ops = &piix_sata_ops, }, @@ -537,8 +537,8 @@ .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR | PIIX_FLAG_AHCI, .pio_mask = 0x1f, /* pio0-4 */ - .mwdma_mask = 0x07, /* mwdma0-2 */ - .udma_mask = 0x7f, /* udma0-6 */ + .mwdma_mask = 0x00, /* mwdma0-2 */ + .udma_mask = 0x00, /* udma0-6 */ .port_ops = &piix_sata_ops, }, - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
