Ryan CHEN ryan.chen@st.com writes:
I am porting U-Boot to a MIPS64 platform, that uses USB host controller NEC uPD720101 on PCI bus.
What CPU? What version of U-Boot are you using?
I didn't modify anything related with USB driver, I just enabled OHCI in the configuration.
Please be more specific, *exactly* which USB options did you enable in your config?
When CPU cache is disabled, USB is perfect working. When CPU cache is enabled, every driver works well but not USB.
Again, what is "not working well"?
Could you suggest me how to solve the problem? Is there any specific part of USB driver that requires cache handling?
None that I'm aware of, but I could imagine that enabling caches might cause some kind of problems.
Best regards
Markus Klotzbuecher
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