Re: [BUG] pdc202xx_new and ACPI fails

[Bartlomiej Zolnierkiewicz]

On Sun, 5 Dec 2004 01:59:46 +0100, Nico Schottelius
<nico-kernel@xxxxxxxxxxxxxxx> wrote:
> Hello dear developers,
> 
> when loading pdc202xx_new on a 2.6.9 kernel with ACPI on the moprobe
>  call will never return and prints many errors [0].
> 
> The controller is a Promise Technology, Inc. PDC20270 (FastTrak100 LP/TX2/TX4) (rev 02).
> 
> If loading the driver without the forced option, it says deactivated
> by BIOS.
> 
> On the other hand, when loading with apm onlyi and enabling forced,
> it works fine [1].
> 
> So my questions:
> 
> - Why does it fail with ACPI?

Because ACPI assigns wrong IRQ line for the second PCI device
(ports ide4 and ide5).

> - Is it possible to fix that? If, how?

Maybe. ;-)
Please forward this mail to ACPI maintainer.

> - Is it possible to make forced enabling a module option?like force_against_bios=0|1
> - Where in which bios (controller/Mainboard) should one activate the ports?

They are marked as disabled for use of Windows software RAID driver,

Juse use forced option or -mm kernels
(they contain patch for automatic ignoring of BIOS settings).

> Greetings,
> 
> Nico
> 
> [0]: see attached dmesg.eiche
> 
> [1]:
> PDC20270: IDE controller at PCI slot 0000:02:01.0
> PDC20270: chipset revision 2
> PDC20270: ROM enabled at 0xdfee0000
> PDC20270: 100% native mode on irq 10
>     ide2: BM-DMA at 0xbc00-0xbc07, BIOS settings: hde:pio, hdf:pio
>     ide3: BM-DMA at 0xbc08-0xbc0f, BIOS settings: hdg:pio, hdh:pio
>     ide4: BM-DMA at 0xa800-0xa807, BIOS settings: hdi:pio, hdj:pio
>     ide5: BM-DMA at 0xa808-0xa80f, BIOS settings: hdk:pio, hdl:pio
> Probing IDE interface ide2...
> Probing IDE interface ide3...
> hdh: IDE DVD-ROM 16X, ATAPI CD/DVD-ROM drive
> ide3 at 0xc400-0xc407,0xc002 on irq 10
> Probing IDE interface ide4...
> Probing IDE interface ide5...
> hdk: WDC WD1200BB-00GUA0, ATA DISK drive
> ide5 at 0xb000-0xb007,0xac02 on irq 10
> hdk: max request size: 1024KiB
> hdk: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(100)
> hdk: cache flushes supported
>  /dev/ide/host4/bus1/target0/lun0: unknown partition table
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/