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ATOM E3825 has QSPI disabled?

tom_walsh
Beginner
1,040 Views

Hi all,

 

We have a product / service device which we need to remotely update the CMOS on those devices. The issue is that with the E3825 ATOM stepping 9 microcode 0x905, we can do this, I can read / write the entire QSPI CMOS Flash. I've used flashrom + the intel_platform drivers of the 5.10.132 Linux release. But microcode 0x90d refuses to let us read more than 4K from the QSPI device.

 

We have over 40K devices deployed world-wide and accessible from the cloud, so, we are desperately hoping to remotely update those devices! Otherwise, ...

 

Is it possible to access the boot QSPI circuit from a running process, or has it been locked down in the microcode.

 

Second question, can we downgrade the microcode within the E3825 so that the re-flash can be done?

 

Thank you

 

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3 Replies
CarlosAM_INTEL
Moderator
1,025 Views

Hello, @tom_walsh:

Thank you for contacting Intel Embedded Community.

We sent an email to the address related to this account with information that may help you.

Best regards,

@CarlosAM_INTEL.

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tom_walsh
Beginner
772 Views

Thank you for the reply, apparently the email did not make it.  Can you resend please?

 

 

TomW

 

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CarlosAM_INTEL
Moderator
760 Views

Hello, @tom_walsh:

Thanks for your reply.

We suggest reviewing the SPAM or undesired mail inboxes to find the email sent to you the past August 8th.

Best regards,

@CarlosAM_INTEL.

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