Hi Team ,
We are tying to configure the SPI Controller registers from LINUX
For this we observed that the write operation (ioremap_nocache + writel ) to harwdare registers is taking approx 2.2 micro seconds .
We think that this oiperation should have taken much less time than 2.2 micro seconds to do an write operation from CPU to SPI Controller
Could team please let us know :-
a) Is there any standard / proven way by which we could reduce this time ?
b) Or is there any alternate way to complete the opeartion in much faster time ?
c) Will increasing the SPI Controller Core frequency help in any way ?
Would be helpful if you can please provide some pointers as to where could i look to achieve this .
Ashish Kumar Mishra .