Messages in this thread | | | Subject | Re: [PATCH] (2.4.22-pre6 BK) New (IDE) driver: SGI IOC4 | From | Alan Cox <> | Date | 17 Jul 2003 13:26:27 +0100 |
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Ok the big problem I'm having with this code is understanding why most of it even exists. Is this chip subtly different in some way I am missing and so unable to use the generic PCI stuff or is most of the copied code simply not needed.
As far as I can see the only "weirdness" it has is that the base registers are off a non standard BAR. Thats something we already support in the core IDE PCI code (see the cs5520 Kahlua driver in 2.6.0test)
Work was also done recently to allow clean wrapping of the generic DMA stuff for devices that had to do custom setup around each IDE DMA (eg HPT372N).
Basically - in what was is your controller not the same as generic MWDMA capable IDE ?
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