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@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