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DateMon, 1 Nov 2004 11:34:58 +0000
FromRussell King <>
SubjectRe: [patch] PCI: Add is_bridge to pci_dev to allow fixups to disable bridge functionality.
On Mon, Nov 01, 2004 at 10:59:13AM +0000, David Vrabel wrote:
> Greg KH wrote:
> > On Tue, Oct 19, 2004 at 12:22:49PM +0100, David Vrabel wrote:
> >>The plan was to make the CardBus driver (drivers/pcmcia/yenta_socket.c) 
> >>honour the is_bridge flag and not bother with CardBus stuff if it's cleared.
> > 
> > But why can't any code that wants to check this, just look at the
> > dev->hdr_type instead?  I don't think we need to add a new bit for this
> > because of that, right?
> 
> Using the is_bridge flag allows PCI device fixups to disable the CardBus 
> portion of the driver.  And you obviously can't tweak the hdr_type since 
> the device header is still a CardBus/bridge type header.

Why not make the PCI spaces for cardbus bridges configurable?  Eg,

cardbusmem=1M cardbusio=8K

?

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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