[U-Boot] [PATCH] mx6ul_evk: Remove SPL support

[Eric Nelson <eric@nelint.com>]

Hi Fabio,

On 04/19/2016 05:45 PM, Fabio Estevam wrote:
> Hi Eric,
> 
> On Tue, Apr 19, 2016 at 9:21 PM, Eric Nelson <eric@nelint.com> wrote:
> 
>> Do you have details of which cards are failing and how?
> 
> The brand that fails is SanDisk 8GB microSD HC I (4).
> 
> If I change to a Kingston card, then it boots fine.
> 

Interesting.

Does the SanDisk card load using the full U-Boot?

>> Do they also fail on other platforms?
> 
> Yes, they also fail in the other SPL platforms I have access to like
> mx6q-sabresd, for example.
> 
> They failure pattern is like this:
> 
> U-Boot SPL 2016.05-rc1-00110-g0973972-dirty (Apr 19 2016 - 20:36:43)
> Trying to boot from MMC1
> hdr read sector 8a, count=0
> spl: mmc block read error from mmc_load_image_raw_sector
> SPL: failed to boot from all boot devices
> 
> Inside  mmc_load_image_raw_sector() we have:
> 
>     /* read image header to find the image size & load address */
>     count = mmc->block_dev.block_read(&mmc->block_dev, sector, 1, header);
> 
> and 'coun't always return 0 for these cards.
> 

I'd suggest reviewing the pad settings and clock setup between
the SPL and full U-Boot, but I suspect you've already done that.