Messages in this thread | | | From | Alexey Brodkin <> | Subject | Re: [PATCH] ARC: [plat-hsdk]: Increase SDIO CIU frequency to 50000000Hz | Date | Wed, 11 Oct 2017 17:07:58 +0000 |
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Hi Eugeniy,
On Wed, 2017-10-11 at 20:01 +0300, Eugeniy Paltsev wrote: > With current SDIO CIU clock frequency (12500000Hz) DW MMC > controller fails to initialize some SD cards (which don't > support slow mode). > > So increase SDIO CIU frequency from 12500000Hz to 50000000Hz by > switching from the default divisor value (div-by-8) to the > minimum possible value of the divisor (div-by-2) in HSDK platform > code. > > Reported-by: Vineet Gupta <vgupta@synopsys.com> > Tested-by: Vineet Gupta <vgupta@synopsys.com> > Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Given this change doesn't introduce any regressions or at least so far we only saw 1 card started to work (confirmed by Vineet) while cards we tried locally continue to work...
Acked-by: Alexey Brodkin <abrodkin@synopsys.com> | |