Re: [PATCH] IDE: don't offer IDE_GENERIC on ia64

["Maciej W. Rozycki" <macro@linux-mips.org>]

On Thu, 11 Aug 2005, Bjorn Helgaas wrote:

> So the scenario in question (correct me if I'm wrong) is that we
> have a PCI IDE device that is handed off in compatibility mode (and
> may only work in that mode).  In that case, the PCI *device* still
> exists, so shouldn't the IDE PCI code claim that device, notice that
> it's in compatibility mode, and use the legacy ports and IRQs if
> necessary?

 You may have a look at how we've solved this for MIPS, where we have a 
mixture of bus arrangements for different platforms, starting from pure 
ISA/EISA ones, ones with PCI and a PCI-(E)ISA bridge, legacy-free PCI ones 
and systems with no Intel-style buses at all, like TURBOchannel ones.  
See "asm-mips/mach-generic/ide.h" for a simple solution that fits all so 
far.  I'm not sure whether the most recent version of the file has been 
merged upstream -- you may have to have look at: 
"http://www.linux-mips.org/cvsweb/linux/include/asm-mips/mach-generic/ide.h"; 
instead.

  Maciej
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