socfpga mmc (was Re: [GIT PULL] SOCFPGA DTS updates for 3.17)

[Pavel Machek]

On Thu 2014-08-14 15:56:02, Dinh Nguyen wrote:
> 
> 
> On 8/14/14, 1:47 PM, Pavel Machek wrote:
> > Hi!
> > 
> > I tried booting kernel based on ba36899, and got:
> > 
> > mmc0: new SDHC card at address b368                                             
> > mmcblk0: mmc0:b368 USD   7.45 GiB                                               
> >  mmcblk0: p1 p2 p3 p4                                                           
> > VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error
> > -6        
> > Please append a correct "root=" boot option; here are the available
> > partitions: 
> > b300         7822336 mmcblk0  driver: mmcblk                                    
> >   b301          102400 mmcblk0p1 00082434-01                                    
> >   b302         1048576 mmcblk0p2 00082434-02                                    
> >   b303            1024 mmcblk0p3 00082434-03                                    
> >   b304         6086656 mmcblk0p4 00082434-04                                    
> > Kernel panic - not syncing: VFS: Unable to mount root fs on
> > unknown-block(0,0)  
> > CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-11208-gef74117-dirty
> > #2        
> 
> Hmm...today's tip-top(899552d6) and ba36899 booted just fine for me. I
> noticed something, you must have commits on top of your ba36899? Mine
> shows 3.16.0-11149-gba36899.

Ok, thanks for info. I went back to 3.16, and it worked in same
config, and went to 3.17, and it broke.

> But just a thought, should one really be developing and debugging with
> commits in a merge window?

Well, some people test -next :-). I must admit it was initially a
mistake, but it is usually good to catch bugs ASAP.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html