gsc_(read|write)[bwl] is what we currently use.
A rather different problem is how to access two PCI busses in one system, one
of which has its MMIO space directly mapped into PA IO space, the other needs
o be accessed using separate address/data registers (though DMA should work
fine on both).
> If the gsc bus is similar enough to PCI that you might end up sharing some
> drivers, that can probably be accomplished by double-compiling them, once
NCR53C710 (SCSI), 82596 (ethernet), NS16550A clone is what we know of so far.
> with "-Dwritel=gsc_writel" kinds of tricks. But trying to make the same
> driver handle both cases dynamically sounds like madness.
That would only work if either the driver wouldn't export any symbols or it
would be loaded as module, wouldn't it ?
Philipp Rumpf
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