Attaching piixide device before pdcsata device

[Selvan <selvany%cat.co.za@localhost>]

Hi all,

I'm faced with a problem that's proving quite difficult to solve. My 
system is populated with 8 internal SATA drives. 4 drives connected to 
the on-board SATA connectors. 4 drives connected to a Promise TX4 300. 
The issue here is, at startup, the Promise card is detected first and 
hence the drives on this card are mapped as wd0, wd1, wd2 and wd3 onto 
the pdcsata device. Thereafter, the on-board drives are detected and 
mapped as wd4, wd5, wd6 and wd7 onto the piixide devices. Is it possible 
to have the order re-arranged such that the on-board drives are detected 
and mapped first as wd0, wd1, wd2 and wd3?

The relevant portions of the dmesg file are listed below:

ppb0 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev. 0xe1)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
pdcsata0 at pci1 dev 0 function 0
pdcsata0: Promise PDC40718 SATA300 controller (rev. 0x02)
pdcsata0: interrupting at ioapic0 pin 20 (irq 10)
pdcsata0: bus-master DMA support present
atabus0 at pdcsata0 channel 0
atabus1 at pdcsata0 channel 1
atabus2 at pdcsata0 channel 2
atabus3 at pdcsata0 channel 3

piixide0 at pci0 dev 31 function 2
piixide0: Intel 82801GB/GR Serial ATA/Raid Controller (ICH7) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel configured to native-PCI mode
piixide0: using ioapic0 pin 19 (irq 11) for native-PCI interrupt
atabus4 at piixide0 channel 0
piixide0: secondary channel configured to native-PCI mode
atabus5 at piixide0 channel 1

wd0 at atabus0 drive 0umass0 at uhub4 port 5 configuration 1 interface 0
wd1 at atabus1 drive 0pdcsata0:1:0: lost interrupt
wd2 at atabus2 drive 0pdcsata0:2:0: lost interrupt
wd3 at atabus3 drive 0pdcsata0:3:0: lost interrupt
wd4 at atabus4 drive 0: <WDC WD1000FYPS-01ZKB0>
wd5 at atabus4 drive 1: <WDC WD1000FYPS-01ZKB0>
wd6 at atabus5 drive 0: <WDC WD1000FYPS-01ZKB0>
wd7 at atabus5 drive 1: <WDC WD1000FYPS-01ZKB0>

Any assistance with this would be greatly appreciated.

Regards,

Selvan Naidoo