[U-Boot] MMC broken after a7778f8fbee098c78b1fa1e1331313a7e217fb30

[Tom Rini]

On Mon, Mar 05, 2012 at 11:03:35PM +0100, Pali Roh?r wrote:
> On Monday 05 March 2012 07:58:16 Tom Rini wrote:
> > On 03/04/2012 01:32 PM, Pali Roh?r wrote:
> > > On Sunday 04 March 2012 13:23:44 Tom Rini wrote:
> > >> On Sun, Mar 4, 2012 at 1:06 PM, Pali Roh?r<pali.rohar at gmail.com>  wrote:
> > >>> Hi,
> > >>> 
> > >>> this commit is breaking MMC support on Nokia N900:
> > >>> a7778f8fbee098c78b1fa1e1331313a7e217fb30 omap_hsmmc: Wait for CMDI to be
> > >>> clear
> > >>> 
> > >>> I'm geting only error message "timedout waiting on cmd inhibit to clear"
> > >>> and I cannot read files from eMMC and SD card. When I reverted commit
> > >>> that commit I all is OK.
> > >> 
> > >> OK, we need to debug what the n900 is doing (do you see this in qemu,
> > >> real HW or both?) since clearing the bit fixes certain SD cards on
> > >> other boards (beagleboard and gumstix iirc, but it was a generic
> > >> issue).  Thanks!
> > > 
> > > RX-51 build of U-Boot in qemu cannot read mmc. It report error about bad
> > > voltage. This was problem also before that commit. RX-51 Linux kernel does
> > > not have any problem with mmc, special prepaired Maemo 5 image (with some
> > > SW on eMMC) from Nokia working fine in qemu.
> > > 
> > > I ignored above problem in qemu, because mmc worked fine on real n900. But
> > > after that commit mmc does not working on real n900 too.
> > 
> > First, if you change SD cards, does the problem go away?  Second, my
> > expectation is that we will make further changes, probably not in time
> > for v2012.03, to the omap_hsmmc.c driver to bring it more in-line with
> > how the kernel driver works.  Thanks!
> 
> Problem is with internal eMMC (which cannot be changed) and with some external 
> Samsung microSD class 10. I do not have other microSD cards for testing now.

Is there anyone you can borrow another uSD card from?

-- 
Tom