i.MX8M Boot Sequence

[shwetha_nayak]

Hi,

I am working on i.MX8MQ EVK. I want to know the boot flow sequence of i.MX8MQ like 

• Where and who loads SPL and AFT images?
• How the communication takes place between the SPL, ATF and the Uboot?
• What are those Training test that are running on power on in SPL?
• What does the file ddr_init.c and ddrphy_train.c do?(The file got after the DDR calibration)

Reagrds,

Shwetha

[Yuri]

Hello,

  Please use the following resources:

1) section 6.1 (System Boot) of the i.MX8M Reference Manual.

https://www.nxp.com/webapp/Download?colCode=IMX8MDQLQRM 

2) app note AN12212 (Software Solutions for Migration Guide from Aarch32 to Aarch64)

https://www.nxp.com/docs/en/application-note/AN12212.pdf

3) i.MX Linux® User's Guide, Rev. L4.14.62_1.0.0_beta.

https://www.nxp.com/webapp/Download?colCode=L4.14.62_1.0.0_Beta_LINUX_DOCS

Have a great day,

Yuri

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