Re: [RFC PATCH v3 9/9] arm64: dts: lx2160a: fix FlexSPI clock

[Vladimir Oltean]

On Sun, Nov 08, 2020 at 07:51:13PM +0100, Michael Walle wrote:
> Now that we have a proper driver for the FlexSPI interface use it. This
> will fix SCK frequency switching on Layerscape SoCs.
> 
> Signed-off-by: Michael Walle <michael@xxxxxxxx>
> ---
> Thanks to Vladimir Oltean, this was partially tested on a LX2160A RDB. But
> this patch is marked as RFC nonetheless, because there is too much
> difference in the clock tree between LS1028A and LX2160A. It would be nice
> if someone could test it and add a Tested-by.

You want someone to probe the SCK frequency? I expect that if frequency
switching works on LS1028A, and the lx2160a_flexspi_divs table is
correct (which, based on the documentation for FlexSPICR1[FlexSPI_CLK_DIV],
it is), then it would work on LX2160A too?
Is there a simple test that can be made in order to trivially determine
whether the frequencies are correct?