On Thu, Sep 25, 2003 at 02:50:50AM -0500, Dave Huang wrote:
> I've got an old Dell Dimenson XPS P90, which has a rather bizarre IDE
> configuration--the primary channel is on the PCI bus, and the
> secondary channel is on the ISA bus. My kernel config has:
> 
> pciide* at pci? dev ? function ? flags 0x0000
> wdc1    at isa? port 0x170 irq 15 flags 0x00
> 
> which used to probe as:
> 
> NetBSD 1.6U (DIMENSION) #1: Wed Jul  9 19:12:46 CDT 2003
> [ ... ]
> pciide0 at pci0 dev 1 function 0: PC Technology RZ1000 (rev. 0x01)
> pciide0: hardware does not support DMA
> pciide0: primary channel wired to compatibility mode
> pciide0: primary channel interrupting at irq 14
> wd0 at pciide0 channel 0 drive 0: <ST31720A>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 1625 MB, 3303 cyl, 16 head, 63 sec, 512 bytes/sect x 3329424 sectors
> wd0: drive supports PIO mode 4, DMA mode 2
> wd1 at pciide0 channel 0 drive 1: <Conner Peripherals 1080MB - CFS1081A>
> wd1: drive supports 16-sector PIO transfers, LBA addressing
> wd1: 1032 MB, 2097 cyl, 16 head, 63 sec, 512 bytes/sect x 2114180 sectors
> wd1: drive supports PIO mode 4, DMA mode 2
> pciide0: secondary channel wired to compatibility mode
> pciide0: secondary channel ignored (other hardware responding at addresses)
> [ ... ]
> wdc1 at isa0 port 0x170-0x177 irq 15
> atapibus0 at wdc1 channel 0: 2 targets
> cd0 at atapibus0 drive 0: <ATAPI CD-ROM DRIVE 32X MAXIMUM, , 323P> cdrom removable
> cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
> 
> Now, I just get:
> NetBSD 1.6ZC (DIMENSION) #0: Thu Sep 25 00:35:52 CDT 2003
> [ ... ]
> pciide0 at pci0 dev 1 function 0
> pciide0: PC Technology RZ1000 (rev. 0x01)
> pciide0: hardware does not support DMA
> pciide0: primary channel wired to compatibility mode
> pciide0: primary channel interrupting at irq 14
> pciide0: secondary channel wired to compatibility mode
> pciide0: secondary channel interrupting at irq 15
> pciide0: secondary channel ignored (other hardware responding at addresses)
> [ ... ]
> wd0 at pciide0 channel 0 drive 0: <ST31720A>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 1625 MB, 3303 cyl, 16 head, 63 sec, 512 bytes/sect x 3329424 sectors
> wd0: drive supports PIO mode 4, DMA mode 2
> wd1 at pciide0 channel 0 drive 1: <Conner Peripherals 1080MB - CFS1081A>
> wd1: drive supports 16-sector PIO transfers, LBA addressing
> wd1: 1032 MB, 2097 cyl, 16 head, 63 sec, 512 bytes/sect x 2114180 sectors
> wd1: drive supports PIO mode 4, DMA mode 2
> wd0(pciide0:0:0): using PIO mode 4
> wd1(pciide0:0:1): using PIO mode 4
> 
> No mention of wdc1 anywhere...
Hello 

I have similar problem but with my atapi cd-rw drive connected as secondary slave
- switching to master "solves" problem...