[U-Boot] MX6ULEVK does not boot

[Tom Rini <trini@konsulko.com>]

On Thu, Nov 19, 2015 at 03:15:31PM -0200, Fabio Estevam wrote:
> Hi Stefano,
> 
> On Thu, Nov 19, 2015 at 3:09 PM, Stefano Babic <sbabic@denx.de> wrote:
> > Hi Fabio,
> >
> > On 19/11/2015 17:13, Fabio Estevam wrote:
> >> On Thu, Nov 19, 2015 at 1:58 PM, Fabio Estevam <festevam@gmail.com> wrote:
> >>> Hi Peng,
> >>>
> >>> Just noticed that mx6ulevk is not booting with latest U-boot:
> >>>
> >>> U-Boot SPL 2016.01-rc1-00078-g736d174 (Nov 19 2015 - 13:45:19)
> >>> Trying to boot from MMC
> >>> spl: mmc block read error
> >>> SPL: failed to boot from all boot devices
> >>> ### ERROR ### Please RESET the board ###
> >>>
> >>> I haven't had a chance to investigate/debug this yet.
> >>
> >> Looks like I cannot boot using my SanDisk micro SD card. I changed the
> >> SD card and now it boots.
> >
> > I can confirm you this weirdness. It depends on the SD Card, I have seen
> > the same on a iMX6 Dual. It does not boot with industrial card (Pretec,
> > 1Gb), no problems with "HC" cards of any size (Toshiba, Sandisk, Hama,..).
> 
> It is interesting that I do not see the problem if I don't use SPL.
> 
> For example: on a mx6qsabresd I can boot the SanDisk card without
> issues if I boot the mx6qbsabresd_deconfig target (u-boot.imx binary).
> 
> However, if I try booting the mx6sabresd_spl_defconfig (SPL +
> u-boot.img) the boot fails with the same error as I noticed on the
> mx6ul board.
> 
> So it seems this is is SPL MMC related problem.

Or the header stuff on the .imx file making things be set that aren't in
the SPL case?  Can you for example use the bad SD card to read from in
U-Boot if you boot off a good card?

-- 
Tom
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