21 Oct
2010
21 Oct
'10
1:31 p.m.
On Thursday 21 October 2010 13:22:10 Reinhard Meyer wrote:
Correct. Note that the EHCI driver already supports such a mode with d-cache enabled. You need to set CONFIG_EHCI_DCACHE to enable these cache handling functions.
AT91 uses OHCI. As far as I can tell there is no cache code in it. And I am not sure whether the USB RAM is cache inhibited. Do any other architectures work with DCACHE and OHCI?
No, the OHCI code has no d-cache support right now. This needs to be added when used with d-cache enabled.
Cheers, Stefan
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