Hi Mike
On Sat, Apr 27, 2013 at 7:14 PM, Mike Frysinger vapier@gentoo.org wrote:
On Saturday 27 April 2013 07:04:10 Sonic Zhang wrote:
From: Sonic Zhang sonic.zhang@analog.com
- Ensure MMR writing is done before next command.
- Invalidate the buffer before starting to read.
this patch was written by Cliff, not yourself. the description really doesn't match reality, and no one has yet to explain what this is doing. i'm fairly certain Cliff, when presented with the bug (iirc, it was "mmc doesn't work at low SCLK") just threw in a crap ton of SSYNCs to slow the driver down and shuffled some code until it worked. no real analysis as to what was actually necessary.
hence, i never pushed this upstream. i still don't think this belongs in mainline.
Good catch. I can't find the log of this patch in local tree, because you moved the bfin_sdh.c someday. Yes, this patch looks like a workaround. So, ignore it.
Regards,
Sonic