Hello. Kevin Hilman wrote:
I've now been using a patched sata_sil driver for a while to support PCI IO space on my embedded ARM target. Do you have any plans of pushing support for this upstream?
MMIO doesn't work at all?
I'm a bit reluctant to push this into mainline, particularly when I feel that the sata_sil driver could still be updated to use only 32-bit MMIO transactions without much problem.
Hello, Kevin, Jeff.
IIRC, Kevin's platform can't do any MMIO.
Actually, this platform (XScale IXP425, big-endian) can do MMIO. I have an e100 PCI card on this board where the driver is using MMIO. I also have a Promise Ultra133 PCI card, but not sure if that driver is using memory space or IO space.
The legacy driver uses strictly I/O space; libata one uses MMIO but I guess you haven't tried that one...
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