topic Re: ATOM E3825 has QSPI disabled? in Embedded Intel Atom® Processors

ATOM E3825 has QSPI disabled?

tom_walsh — Sun, 07 Aug 2022 14:34:43 GMT

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

Re: ATOM E3825 has QSPI disabled?

CarlosAM_INTEL — Mon, 08 Aug 2022 13:43:47 GMT

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.

Re: ATOM E3825 has QSPI disabled?

tom_walsh — Wed, 14 Dec 2022 01:33:32 GMT

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

TomW

Re: ATOM E3825 has QSPI disabled?

CarlosAM_INTEL — Wed, 14 Dec 2022 18:25:39 GMT

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.