Messages in this thread | | | Date | Wed, 03 Jun 2009 11:45:07 -0400 | From | Joey Oravec <> | Subject | Re: [PATCH] New AT91 MCI Driver that supports both MCI slots used at the same time |
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Nicolas Ferre wrote: > This systematic reset was remove by Haavard with this comment: > "Also, don't reset the controller between each transfer. That was an > attempt to work around earlier bugs, and it never really worked very > well." > See: http://lists.arm.linux.org.uk/lurker/message/20090409.120542.4f74c08d.en.html
I disagree with Haavard. Without the reset my sam9261 would exhibit DAT0 contention, early interrupts, and other problems. Adding the reset was a major improvement. I emailed you some screenshots on April 10 2009 that demonstrate my testing. Let me know offline if either you or Havaard did not get the email and I can resend.
Maybe the problems are limited to this chip? We should discuss this further.
-joey
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