mmc/sd driver testing.

[Tim Kientzle]

> On Apr 12, 2015, at 9:19 AM, Pratik Singhal <ps06756 at gmail.com> wrote:
> 
> I am testing the patch for mmc/sd driver for Allwinner A10 (written by
> Alexander Fedorov) (as a part of my GSOC project along with my mentor ) on
> my Cubieboard 1 with freebsd 11.0 current.
> 
> Currently, it seems to be working fine.
> 
> I have tested its read functionality using dd command with various block
> sizes and I seem to be getting speeds upto 2 MB/second.
> 
> I have also tried to create a fat16 partition on sd card and wrote some
> files on to it successfully.
> 
> What more tests should I perform to check the reliability and functionality
> of the driver ?

* Boot from SD.

* Try with different SD cards, preferably from different manufacturers; different cards have slightly different timing requirements.

* Checkout FreeBSD source and “cd /usr/src; make -j 4 buildworld”
  This is about the closest FreeBSD has to a stress-test of the entire system.  In particular, a parallel build (-j 4) will end up with multiple programs reading and writing to the SD simultaneously.  (Warning: On my BeagleBones, this takes about two full days to complete.)