i.MX Processors中的主题 8MQ boot problem

8MQ boot problem

haochengdong — Wed, 09 Sep 2020 07:55:36 GMT

Hello

The memory particles we use are DDR4.LPDDR4 used on EVK.

We encountered a problem when adjusting the driver, that is, adding an mdelay of 1s or more to any driver, the system will freeze when it starts.
The location of the jam is related to the place where the delay is added. When the delay is added to the drive that is initialized earlier, the system will basically freeze to the position of the delay. If the delay is added to the drive that is initialized later, the system will start a little bit and then freeze.
If there is no delay, the system will start normally. We replaced the modified kernel on the EVK at the same time, and there was no stuck problem.
The reason why we try this is because when we debug the camera, the IIC takes a long time to read the register and the system will freeze.

Re: 8MQ boot problem

xiangjun_rong — Thu, 10 Sep 2020 02:34:55 GMT

Hi, HaoChengDong

Can you tell us the part number you are using? do you use starCore or layerscape even i.mx family?

This is DSC community, if you use layerscape, pls go to the link:

https://community.nxp.com/t5/QorIQ-Processing-Platforms/ct-p/qoriq

If you use i.mx, pls go to the link:

https://community.nxp.com/t5/i-MX-Processors/bd-p/imx-processors

XiangJun Rong

Re: 8MQ boot problem

stanlymathews — Fri, 11 Sep 2020 10:50:05 GMT

The problems will solve within 10 minutes. So for that, I have some different tricks to solve this for that you just connect with laptop repair dubai service and will take the suggestion to solve the boot process that will be very helpful.