[U-Boot] [PATCH v2 5/5] imx: add i.MX6ULZ board

[Peng Fan]

> Subject: Re: [U-Boot] [PATCH v2 5/5] imx: add i.MX6ULZ board
> 
> Hi Peng,
> Hi Fabio,
> 
> On 06.09.19 09:43, Peng Fan wrote:
> >> Subject: Re: [U-Boot] [PATCH v2 5/5] imx: add i.MX6ULZ board
> >>
> >> Hi Stefan,
> >>
> >> On Thu, Sep 5, 2019 at 5:59 AM Stefan Roese <sr at denx.de> wrote:
> >>
> >>> a)
> >>> Why is SPL not used in the mainline i.MX6ULL/ULZ port? The i.MX6UL
> >>> (14x14) does use SPL.
> >>
> >> Yes, I think it could SPL as well. Maybe Peng can comment.
> >
> > NXP vendor tree not support SPL, so when I upstream the code, SPL was
> > not included.
> 
> I see. Thanks for the update here. I might work on SPL support, if this seems
> necessary for my custom i.MX6ULZ board.
> 
> I do have another question though. I'm currently testing QSPI booting on the
> i.MX6ULL EVK. And this does not work 100% reliably. Sometimes the board
> boots after programming of the IMX image to 0x1000 in QSPI NOR to the
> U-Boot prompt. And sometimes I see no output at all. I do have the QSPI
> binary programmed at 0x400. BTW, these binaries boot all just fine when
> booted via the "imx_usb" loader. Only when booted directly from QSPI (DIP
> switches) it fails sometimes.
> 
> Is this a known problem?

I not heard such issue from our internal test.

> 
> Do you have a reference U-Boot binary for QSPI booting for the i.MX6ULL EVK?
> Best would be including the QSPI header (offset 0x400).

Have you ever tried mfgtool? I do not have such image.

Regards,
Peng.
> 
> Thanks,
> Stefan