On Fri, 15 Feb 2019 at 06:59, Chaotian Jing wrote:
>
> mmc_hs400_to_hs200() begins with the card and host in HS400 mode.
> before send CMD6 to switch card's timing to HS mode, it reduce clock
> frequency to 50Mhz firstly, the original intention of reduce clock
> is to make "more stable" when doing
mmc_hs400_to_hs200() begins with the card and host in HS400 mode.
before send CMD6 to switch card's timing to HS mode, it reduce clock
frequency to 50Mhz firstly, the original intention of reduce clock
is to make "more stable" when doing HS switch. however,reduce clock
frequency to 50Mhz but withou
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