On Mon, 2010-12-20 at 09:32 +0800, Zhao, Yakui wrote:
> From: Zhao Yakui <[email protected]>
>
> After the commit of b6804ba336e631495e29a4989bc55c3cddfa000c is pushed,
> the SD card will work in the low-speed mode instead of high-speed mode.
>
> With the following two small fixes, the SD card can be restored to high-speed
> mode again.
>
> [Patch 1/2]: Fix the two conflicting quirk definitions for HISPD bit
> on MRST
>
> [Patch 2/2]: Fix the incorrect quirk definition of (1<<31)
After the SD card works in high-speed mode, the SD read throughput can
be almost doubled when using the following the command(The throughput
can be improved from 9.6MB/s to 17MB/s):
dd if=/dev/mmcblk0 of=/dev/null bs=128k count=4k iflag=direct
thanks.
Yakui
>
> thanks.
>
> Yakui
>
_______________________________________________
MeeGo-kernel mailing list
[email protected]
http://lists.meego.com/listinfo/meego-kernel
