FIELD_RETURN_LOCK enabling

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FIELD_RETURN_LOCK enabling

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Kazuma_Sasaki
Senior Contributor I

Hi,

I would like to enable the FIELD_RETURN_LOCK bit in OCOTP_SW_STICKY register.

IMX6DQ6SDLSRM described it is set to always enable for protecting FIELD_RETURN fuse.

But, When I check OCOTP_SW_STICKY register, FIELD_RETURN_LOCK bit is always 0b.

I think that FIELD_RETURN_LOCK is disabling at my test environment.

How do I set to FIELD_RETURN_LOCK to 1b = enable?

From IMX6DQ6SDLSRM:

pastedImage_1.png

My test environment :

   Board SABRE-AI CPU2

   SoC i.MX6DL

 BSP Linux 4.1.15_2.0.0_ga

My test result :

(1) OCOTP_SW_STICKY register read from U-boot prompt.

=> md.l 0x21bC050 1
021bc050: 00000018

(2) Add below line to DCD table in U-boot source code. I could not get any log from debug console after this modification.

DATA 4 0x021bc050 0x00000004

Best Regards,

Kazuma Sasaki.

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1 Solution
318 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

   I've sent You some information directly. Hope it helps.


Have a great day,
Yuri

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2 Replies
319 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

   I've sent You some information directly. Hope it helps.


Have a great day,
Yuri

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

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318 Views
Kazuma_Sasaki
Senior Contributor I

Hi Yuri,

I appreciate your support. My issue is solved by your advice.

Best Regards,

Kazuma Sasaki.