Hi Ben
> > > > SH-MMC is using this style. and I think it is flexible for every speed.
> > > > Please check sh_mmcif_clock_control(), sh_mmcif_clk_setup()
> > > > on ${LINUX}/drivers/mmc/host/sh_mmcif.c
> > >
> > > That's certainly a nicer way of doing this. The difficulty I see is
> > > that tmio_mmc doesn't know anything about the input clock, and not all
> > > of the drivers using it actually use the clock framework.
> >
> > More importantly, that algrithm can result in overclocking the card.
>
> ...and some of the multiplications overflow!
Can you show us more detail ?
It seems bug...
Best regards
---
Kuninori Morimoto
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