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SubjectRe: isa_read/write not available on ppc - solution suggestions ??
On Tue, May 01, 2001 at 10:22:39AM -0700, Linus Torvalds wrote:
> I bet that the patch will be smaller too. It's a simple case of
> - do the ioremap() _once_ at bootup, save the result in a static
> variable somewhere.
> - implement the (one-liner) isa_readx/isa_writex functions.
> On many architectures you don't even need to do the ioremap, as it's
> always available (same as on x86).

Talking around this issue, is there any chance of getting the
official use of the first parameter to ioremap documented in
Documentation/IO-mapping.txt please? There appears to be
confusion as to whether it is:

a) PCI bus address
b) CPU untranslated address

Currently, IO-mapping.txt seems to imply (a), but I believe that
a lot of people on lkml will disagree with that.

Russell King ( The developer of ARM Linux

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