[coreboot] SeaBIOS WinXP install
Arnaud Maye
arnaud.maye at 4dsp.com
Wed Sep 2 17:04:10 CEST 2009
Myles Watson wrote:
>> Here is the lspci for both legacy and coreboot :
>> -----------------------------------------------
>> legacy :
>> 00:1f.2 IDE interface: Intel Corporation EP80579 S-ATA IDE (rev 01)
>> (prog-if 8f [Master SecP SecO PriP PriO])
>> Subsystem: Intel Corporation EP80579 S-ATA IDE
>> Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 58
>> I/O ports at f080 [size=8]
>> I/O ports at f070 [size=4]
>> I/O ports at f060 [size=8]
>> I/O ports at f050 [size=4]
>> I/O ports at f040 [size=16]
>> Memory at d0100000 (32-bit, non-prefetchable) [size=1K]
>> Capabilities: [70] Power Management version 2
>>
>> 00:1f.2 IDE interface: Intel Corporation EP80579 S-ATA IDE (rev 01)
>> (prog-if 8f [Master SecP SecO PriP PriO])
>> Subsystem: Intel Corporation Unknown device 2680
>> Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 145
>> I/O ports at 2410 [size=8]
>> I/O ports at 2420 [size=4]
>> I/O ports at 2418 [size=8]
>> I/O ports at 2424 [size=4]
>> I/O ports at 2400 [size=16]
>> Memory at d4a07400 (32-bit, non-prefetchable) [size=1K]
>> Capabilities: [70] Power Management version 2
>>
>> Actually same except io ports are located another place and the
>> subsystem IDs is set differently by the driver. I do
>> not think the last one would cause any troubles.
>>
> I don't think the IO port location is a problem, unless it conflicts with
> something in the DSDT. The IRQ setting is also different. 145 seems pretty
> high.
>
What this IRQ 145 (or 58) relates to. On the legacy BIOS this is an
ACPI=force boot and on coreboot
this is an ACPI=off. Is this IRQ assigned by coreboot, by seabios or the
operating system. I just want to
verify if this is normal or not.
Thank you,
Arnaud
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