On 2017-09-05 06:45, Fabio Estevam wrote:
Hi Stefano,
On Tue, Sep 5, 2017 at 8:16 AM, Stefano Babic sbabic@denx.de wrote:
Maybe we get some further info from our "insider" (Fabio, Peng). It will be very interesting to know if we can apply this to all spectrum from i.MX6, or if there is some MX6 variant where the Bootrom is doing something different.
Looking at NXP U-Boot code I see that this same mechanism applies not only to mx6, but it extends to mx7 and mx7ulp, so it seems like a good approach.
i.MX 7 has a Boot Information structure which is passed from the Boot ROM, so we have a much cleaner method there. http://git.denx.de/?p=u-boot/u-boot-imx.git;a=blob;f=arch/arm/mach-imx/mx7/s...
As far as I can tell this boot information structure is also accurate when the Boot ROM entered serial downloader as a fallback.
Do we have boards using SPL on i.MX 7?
-- Stefan