Re: [U-Boot] [RESEND PATCH] sunxi: mmc: increase status register polling rate for data transfers

2016-07-09 Thread Hans de Goede
Hi, On 08-07-16 12:40, Tobias Doerffel wrote: With a recent bunch of SD3.0 cards in our A20-based board we experienced data transfer rates of about 250 KiB/s instead of 10 MiB/s with previous cards from the same vendor (both 4 GB/class 10). By increasing status register polling rate from 1 kHz

[U-Boot] [RESEND PATCH] sunxi: mmc: increase status register polling rate for data transfers

2016-07-08 Thread Tobias Doerffel
With a recent bunch of SD3.0 cards in our A20-based board we experienced data transfer rates of about 250 KiB/s instead of 10 MiB/s with previous cards from the same vendor (both 4 GB/class 10). By increasing status register polling rate from 1 kHz to 1 MHz we were able to reach the original