IMX8MP Booting from ECSPI2 is inconsistent

YorkerHazan — Tue, 05 Aug 2025 07:18:13 GMT

Greetings,
We have encountered an issue with attempting to boot from ECSPI2.
We changed the boot flags in the fuses to force boot from ECSPI2 (ECSPI2 is connected to a NOR Flash which is programmed with a valid boot image).

Booting is inconsistent, most of the times the booting will fail but occasionally it will succeeded.

To verify that this is an issue with the SOC, we switched to using the imx8mp-evb.

after performing the same fuse selection for the SOC on the evb we checked the spi transactions using an oscilloscope, which gave us the following findings:
1) The SCK dutycycle is 75% (where is should be 50% to my understanding)
2) The SCK is 1.7v (where it should be 3.3v, should be identicle to MOSI which is 3.3v)

(These measurements are correct for the EVB and for our proprietary hardware)

I would greatly appreciate any help regarding this issue as it is a big issue for us!

Re: IMX8MP Booting from ECSPI2 is inconsistent

pengyong_zhang — Wed, 06 Aug 2025 03:02:54 GMT

Hi @YorkerHazan

Booting is inconsistent, most of the times the booting will fail but occasionally it will succeeded.

>>>please check your hardware connection. It seems your HW connection error.

B.R

i.MX ProcessorsのトピックIMX8MP Booting from ECSPI2 is inconsistent

IMX8MP Booting from ECSPI2 is inconsistent

Re: IMX8MP Booting from ECSPI2 is inconsistent