Re: [PATCH] ARC: [plat-hsdk]: Increase SDIO CIU frequency to 50000000Hz

2017-10-11 Thread Alexey Brodkin
Hi Eugeniy, On Wed, 2017-10-11 at 20:01 +0300, Eugeniy Paltsev wrote: > With current SDIO CIU clock frequency (1250Hz) DW MMC > controller fails to initialize some SD cards (which don't > support slow mode). > > So increase SDIO CIU frequency from 1250Hz to 5000Hz by > switching from

Re: [PATCH] ARC: [plat-hsdk]: Increase SDIO CIU frequency to 50000000Hz

2017-10-11 Thread Vineet Gupta
On 10/11/2017 10:01 AM, Eugeniy Paltsev wrote: With current SDIO CIU clock frequency (1250Hz) DW MMC controller fails to initialize some SD cards (which don't support slow mode). So increase SDIO CIU frequency from 1250Hz to 5000Hz by switching from the default divisor value (div-by-

[PATCH] ARC: [plat-hsdk]: Increase SDIO CIU frequency to 50000000Hz

2017-10-11 Thread Eugeniy Paltsev
With current SDIO CIU clock frequency (1250Hz) DW MMC controller fails to initialize some SD cards (which don't support slow mode). So increase SDIO CIU frequency from 1250Hz to 5000Hz by switching from the default divisor value (div-by-8) to the minimum possible value of the divisor (