sata_sil: Option to use IO space to access TF registers.
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| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/1 | sata_sil: Option to use IO space to access TF registers.drivers/ drivers/ | +55 | 0 replies |
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Cover letter [PATCH 0/1] sata_sil: Option to use IO space to access TF registers.
I'm working on a board where byte reads from the processor get converted into word reads on the PCI bus. This doesn't mix well with reading the TaskFile registers...
IO space reads do generate the correct byte enables so this patch gives the option of accessing the TF registers via IO space.
I'm not sure if its worth adding this to the driver... it's a work around for the "unfortunate" PCI behaviour on this board, but there may be other challenged hardware out there, so it might be worth considering.
Chris