Re: [U-Boot] Flag -mno-cache-volatile to bypass the cache

Dear ivanchuklist ivanchu,

In message 51a313240902050730k4f03247etc73ac5579c1f7154@mail.gmail.com you wrote:

I use readl() or writel() to access the hardware but i found a compiler flag that bypass the cache for all volatile variables, it uses io versions of load/store functions. So, what should i do, make use of write/read functions or insert this flag in the makefile?.

Please continue to use the I/O accessor functions. Your specific compiler version may understand such an option, but don't expect that any other compiler or architecture provides the same - so better stay portable and use what was designed exactly for this purpose.

Best regards,

Wolfgang Denk