[Bug 7304] no PCI irq, Cardbus support disabled

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=7304





--- Comment #91 from Dominik Brodowski <linux at brodo.de>  2010-03-31 06:45:07 ---
The problem isn't detecting the IRQ -- we can use ISA IRQ 3 (as 2.2.xx did) or
ISA IRQ 9 and 10 (as the patch in comment #86 did).

The problem is setting up the bridge so that it routes CSC (card status change)
IRQs for CardBus and 16bit cards to the ISA IRQ and also card IRQs for CardBus
and 16bit cards to the ISA IRQ. This seems to be impossible on the ToPIC97.

However, 2.2. seems to do some "polling" to get the IRQs right. I.e., it isn't
really using the IRQs, but polls whether an IRQ occured. That seems necessary
at least or the CSC interrupt.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.