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SubjectRe: [BUG] Ricoh Cardbus -> Can't get interrupts
From
On Mon, Nov 24, 2003 at 06:06:51PM -0800, Linus Torvalds wrote:
>
> On Mon, 24 Nov 2003, Jean Tourrilhes wrote:
> >
> > This is a box from 1998, and the manual doesn't mention
> > anything about ACPI. I highly doubt it would support ACPI, but how do
> > I check that ?
>
> Enable CONFIG_ACPI and CONFIG_ACPI_BOOT.

----------------------------------------------------
ACPI: Subsystem revision 20031002
ACPI: System description tables not found
ACPI-0084: *** Error: acpi_load_tables: Could not get RSDP, AE_NOT_FOUND
ACPI-0134: *** Error: acpi_load_tables: Could not load tables: AE_NOT_FOUND
ACPI: Unable to load the System Description Tables
----------------------------------------------------
> > Which in this case failed. I think all I need is to configure
> > cp_pci_irq to the proper value.
>
> That may work, but it equally well might not. Quite often the irq routing
> actually has to physically connect the irq line (well, "physically" in
> this case is a matter of reprogramming the proper southbridge registers).

In the case of the old Pcmcia package, there was a bunch of
options to take care of that, such as "cb_pci_irq". I didn't try yet
the old Pcmcia package to check if this option is working, because I
would need to recompile a kernel 2.4.X. But, if the old Pcmcia package
was able to do it, it's not impossible.

> Linus

Currently, I managed to narrow down to :
-------------------------------------------------
PCI: Using IRQ router PIIX [8086/7110] at 0000:00:07.0
PCI: IRQ fixup
querying PCI -> IRQ mapping bus:0, slot:7, pin:3.
pin_2_irq idx:9, apic:0, pin:19.
PCI->APIC IRQ transform: (B0,I7,P3) -> 19
querying PCI -> IRQ mapping bus:0, slot:8, pin:0.
pin_2_irq idx:16, apic:0, pin:16.
PCI->APIC IRQ transform: (B0,I8,P0) -> 16
querying PCI -> IRQ mapping bus:0, slot:17, pin:0.
pin_2_irq idx:19, apic:0, pin:18.
PCI->APIC IRQ transform: (B0,I17,P0) -> 18
querying PCI -> IRQ mapping bus:0, slot:18, pin:0.
pin_2_irq idx:20, apic:0, pin:16.
PCI->APIC IRQ transform: (B0,I18,P0) -> 16
querying PCI -> IRQ mapping bus:0, slot:19, pin:0.
querying PCI -> IRQ mapping bus:1, slot:0, pin:0.
pin_2_irq idx:21, apic:0, pin:18.
PCI->APIC IRQ transform: (B1,I0,P0) -> 18
querying PCI -> IRQ mapping bus:2, slot:4, pin:0.
pin_2_irq idx:17, apic:0, pin:17.
PCI->APIC IRQ transform: (B2,I4,P0) -> 17
querying PCI -> IRQ mapping bus:2, slot:5, pin:0.
pin_2_irq idx:18, apic:0, pin:18.
PCI->APIC IRQ transform: (B2,I5,P0) -> 18
-------------------------------------------------
The Pcmcia bridge is in slot 19.
Thanks a lot !

Jean

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