how to enable secondary bootloader(uboot) in imx8m mini

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how to enable secondary bootloader(uboot) in imx8m mini

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girishprasadgm
Contributor II

Hi,

I am trying to use redundent boot feature supported by imx8m mini as described in reference manual and 

girishprasadgm_0-1605928407746.png

Can you please explain or point me to a document how to update the area "Reserved for Secondary
Image Table (optional)" at 0x00008200, so that if primary bootloader corrupted secondary bootloader is picked. 

 

 I am using imx8 yocto - sumo release. 

I have also tried below steps: given in document AN12900

Primary U-Boot:
sudo dd if=signed_flash.bin of=/dev/<sdX> bs=1K seek=33 && sync
Secondary U-Boot:
sudo dd if=signed_flash.bin of=/dev/<sdX> bs=1K seek=2048 && sync

 

Thanks

Girish  

 

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Girish

 

one can try guidelines provided on

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-8MQ-ROM-Redundant-Boot-for-expansio...

 

Best regards
igor

 

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