Messages in this thread | | | Date | Wed, 19 Dec 2001 21:57:57 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] PCI updates - 32-bit IO support |
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David S. Miller wrote:
> From: "H. Peter Anvin" <hpa@zytor.com> > Date: 19 Dec 2001 19:37:46 -0800 > > You probably need to verify that 32-bit support is available (both on > the bridge and the peripherals), but if they are, there's no reason > not to use it on non-x86 architectures... > > Don't the PCI specs actually talk about 24-bits in fact? >
No. IOIO is 32 bits on PCI; however, it is legal to hardwire the top 16 bits to zero. It's something like 26 bits on HyperTransport.
-hpa
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