sd card probing (was: FreeBSD 10.0 on Raspberry PI B+ no network devices

[Warner Losh]

On Oct 22, 2014, at 2:44 PM, Bernd Walter <ticso at cicely7.cicely.de> wrote:

> On Tue, Oct 14, 2014 at 12:51:50PM -0300, Luiz Otavio O Souza wrote:
>> On 14 October 2014 01:13, Bernd Walter wrote:
>>> 
>>> Ok - that card problem seems random or contact related.
>>> Whatever, it is 6 am - time to sleep ;-)
>> 
>> I've found a missing silicon bug workaround on our driver.
>> 
>> It's pretty recent and i'm still building new images to test with more
>> cards, but it did fix all the instability i was seeing on the
>> identification of one of my cards.
>> 
>> Together with the new firmware (yes, there is another SD fix there) my
>> RPi B rev 2 (with this same card) has gone from unusable to rock
>> stable (i've done 80 cold boots without any damage/corruption to the
>> card).
>> 
>> Please, give it a try and let me know if it helps.
> 
> Tested.
> All I can say so far is that it is random, but your patch didn't help.
> Furthermore this problem now happens on each boot try.
> It still may be possible that it can boot, but I've tried many more
> times than needed before.
> 
> Timecounters tick every 10.000 msec
> usbus0: 480Mbps High Speed USB v2.0
> ugen0.1: <DWCOTG> at usbus0
> uhub0: <DWCOTG OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0
> mmcsd0: 8GB <SDHC 00000 1.0 SN 62A50A6C MFG 11/2013 by 27 SM> at mmc0 41.6MHz/4bit/65535-block
> mmcsd0: Error indicated: 1 Timeout
> mmcsd0: Error indicated: 1 Timeout
> fb0: 656x416(0x0 at 0,0) 16bpp
> fb0: pitch 1312, base 0x5e006000, screen_size 545792
> fbd0 on fb0
> VT: initialize with new VT driver "fb".

My RPi-B fails at mount root. It just hangs forever with recent kernel / firmware.

Warner
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