SK-AM62P-LP: Automatic Failover from eMMC Boot0 to Boot1 on Linux or Baremetal Crash – Feasibility and User Guide Request

Hello,

veerapandiyan v said:

Is this failover mechanism possible on the AM62Px platform?

No. Neither the ROM nor the SBLs from the MCU+ SDK support this failover mechanism. If required, you may implement it by yourself at least for the SBLs in the MCU+ SDK.

Regards,

Prashant

Hi Prashant, 

Prashant Shivhare said:

No. Neither the ROM nor the SBLs from the MCU+ SDK support this failover mechanism

Okay.

Prashant Shivhare said:

If required, you may implement it by yourself at least for the SBLs in the MCU+ SDK.

I will try to implement it myself; however, it would be helpful if you could share any available documentation for the same.

Regards,

Veerapandiyan V

Hello,

veerapandiyan v said:

I would like to implement a failover mechanism such that if Linux or Baremetal firmware crashes, the system automatically switches to boot from the Boot1 partition.

The best you can do here is if the SBL failed to load the images then it may try to boot the respective image from a different partition.

This is different from the case of failover mechanism for firmware crashes which would require you to implement mechanism to identify if the firmware, which was running, crashed and accordingly take action.

Regards,

Prashant

Hi Prashant,

Then what will we do if Linux crashes? Now it is working in the boot 0 partition, so if Linux crashes, how can we change from Boot 0 to Boot 1 partition?

Regards,

Veerapandiyan V

Hi Prashant,
    I am waiting for your reply.
Regards,
veerapandiyan V

Hello,

veerapandiyan v said:

Then what will we do if Linux crashes?

As I conveyed, you would have to implement some sort of mechanism, like IPC, to detect if the Linux is crashed and accordingly take action. If the action involves loading the different image than the one booted originally, you would have to implement this loading as well.

Hi Prashant,

I have already completed the code for the failover mechanism. I want to know how to change from Boot0 to Boot1 when Linux crashes. 

Regards,

Veerapandiyan V

Hi Prashant,
    I am waiting for your reply.
Regards,
veerapandiyan V

Hi Prashant,
    I am still waiting for your reply.
Regards,
veerapandiyan V

Hello,

May I know how are you planning to boot the A53 core with another image after the crash? The loading of a different image is just one part of the complete flow.