Alan Cox wrote:
Table 22 on page 51 of CF Specification Rev. 4.1 indicates that iordy is not supported in PIO5 and PIO6. This seems to be in conflict with the code in ata_pio_need_iordy, which asserts that it is mandatory in any mode greater than PIO2.
Which is correct? Or am I misreading something?
The ATA spec says that modes > PIO2 requires IORDY
The CFI spec does indeed say PIO5/6 do not use IORDY so probably you should tweak that function at least for CFA devices.
Only for them because there probably used to be PIO5 hard disks in the wild and they hardly ignored IORDY...
Alan
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