* Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx> [080925 13:25]: > > Op 25 sep 2008, om 11:47 heeft Tony Lindgren het volgende geschreven: > >> * Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx> [080925 12:23]: >>> >>> Op 25 sep 2008, om 10:51 heeft Tony Lindgren het volgende geschreven: >>> >>>> * Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx> [080925 11:42]: >>>>> Hi, >>>>> >>>>> I just built a kernel from current git[1] and the mmc controller >>>>> doesn't >>>>> get detected on boot on my beagleboards. The omap mmc system has >>>>> seen a >>>>> lot of changes lately, does anyone have a hint where to start >>>>> looking >>>>> before attemping a bisect? >>>> >>>> Sounds like the recent mmc init changes we've done: >>>> >>>> 535e1808d1c77a580815f7d7daacc6c030e29cb1 - 12 september 2008 >>> >>>> 8e6e06c71b9d21d85a3ae652868e2802c054a08a - 12 september 2008 >>> >>>> c434c15d28c82d92e55897bd265c423e9ab69362 - 24 september 2008 >>> >>> >>>> I've verified that it works on omap3430sdp. But mach-omap2/hsmmc.c >>>> needs >>>> some more work done to support other mmc controllers besides the >>>> first >>>> one. >>>> I don't think other controllers ever worked before these patches >>>> either though.. >>>> >>>> Let me know if you can narrow it down to some commit and I may be >>>> able >>>> to help further from there. >>> >>> The previous working version I built was based of >>> de1121fdb899f762b9e717f44eaf3fae7c00cd3e which was commited at 13 >>> september 2008, so 535e18.. and 8e6e06c.. don't break it. >> >> OK, good to know. Can you try to git-bisect it? > > That proved to be a lot less work than expected :) > > Last good: 9d1dff8638c9e96a401e1885f9948662e9ff9636 > First bad: c434c15d28c82d92e55897bd265c423e9ab69362 > > So > http://source.mvista.com/git/gitweb.cgi?p=linux-omap-2.6.git;a=commit;h=c434c15d28c82d92e55897bd265c423e9ab69362 > breaks MMC on beagle. Hmm, I don't understand how it could work on 3430sdp... Looks like board-omap3beagle.c calls hsmmc_init() just like board-3430sdp.c. Maybe timings have changed and you need a longer delay somewhere during the init? Maybe sprinkle some printks to hsmmc.c and see if that makes it to work? Also make sure omap_hsmmc.c probe finishes OK. Tony >>>>> [1] http://source.mvista.com/git/gitweb.cgi?p=linux-omap-2.6.git;a=commit;h=c434c15d28c82d92e55897bd265c423e9ab69362 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
