Messages in this thread | | | Date | Thu, 24 Feb 2011 20:15:04 +0000 | From | Chris Ball <> | Subject | Re: [PATCH 1/1]mmc: set timeout for SDHCI host before sending busy cmd |
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On Thu, Feb 24, 2011 at 10:32:30AM -0800, Philip Rakity wrote: > proposed this a while ago and strongly support just removing the quirk for broken timeout and setting the timeout value to maximum of 0xE. > > This also handles the case of the sd device having a timeout value too low. In my testing I have come across SD cards that do not provide the correct value. > We force our pxa168, pxa910, and mmp2 controllers to have 0xE.
Yeah, OLPC's CaFe controller -- which might be the same hardware as yours, actually -- has the same problem.
Does anyone know of a reason (beyond strict spec-compliance, I suppose) for honoring the timeout value rather than using 0xE everywhere? If not, I'm willing to try out Philip's suggestion.
Thanks,
-- Chris Ball <cjb@laptop.org> <http://printf.net/> One Laptop Per Child
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