OTP Bits Cannnot read

[thomas_sato]

Hi All.

I use discovery board of STM32MP157F-DK2 .

So I want t to try  read OTP Bits via STM32CubeProgrammer , But I find 2 errs.

The err things search ST Community, I fund it.

Can't read OTP bits on STM32MP157C-DK2 using STM32CubeProgrammer

So I Try to refer Answer,I can't know where wrong.

(I reload Flashlayout for OTP exposing )

Sorry for my poor English,Thinks at all.

/********************************************************************************************************************/

u6326@Prodisk:~/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin$ ./STM32_Programmer_CLI -c port=usb1 -d FlashLayout.tsv -otp displ
-------------------------------------------------------------------
STM32CubeProgrammer v2.15.0
-------------------------------------------------------------------

USB speed : High Speed (480MBit/s)
Manuf. ID : STMicroelectronics
Product ID : USB download gadget@Device ID /0x500, @Revision ID /0x2001, @Name /STM32MP157FAC Rev.Z,
SN : 003200433132511831373339
DFU protocol: 1.1
Board : --
Device ID : 0x0500
Device name : STM32MP157FAC Rev.Z
Device type : MPU
Revision ID : --
Device CPU : Cortex-A7

Start Embedded Flashing service

Flashing service completed successfully

UPLOADING OTP STRUCTURE ...
Partition : 0xF2
Size : 1024 Bytes

Uploading OTP data:
Error: Read OTP Partition failed

Error: Uploading the OTP structure failed
Error: Initializing the OTP structure failed

/********************************************************************************************************************/

[Olivier GALLIEN]

Hi @thomas_sato 

Could it be same reason as in Solved: Can't read OTP bits on STM32MP157C-DK2 using STM32... - STMicroelectronics Community ? 

Olivier 

[thomas_sato]

Hi.IlivierG.

think you for your cooperation.

Yes,I read and try it community page,But I can't do it.

Host OS is ubuntu 22.04,I check DFU driver is functional,Okey...

Am I generate failed file [ tf-a-stm32mp157f-dk2-usb.stm32 ] or [ fip-stm32mp157f-dk2-optee.bin ]？

I use Distributin-package in openstlinux-6.1-yocto-mickledore mickledoremp1-v23.11.15.

So I will set [  DISTRO=openstlinux-weston MACHINE=stm32mp1 source layers/meta-st/scripts/envsetup.sh ]

and [ bitbake se-image-weston ].

Can I Need special method for OTP paramer?

Best regards

[Kevin HUBER · Accepted solution]

Hello @thomas_sato ,

Sorry for the delay to answer, but I think we already answered your question in an internal ticket.

I explain here why you were not able to dump the OTP because it may help other people.

As explained in your previous post, you are using: Distribution-package in openstlinux-6.1-yocto-mickledore mickledoremp1-v23.11.15

That is the OSTL v5.0.2.

If you are using an OSTL v5.0.0 or newer you have to take care to the warning area of the wiki page: https://wiki.st.com/stm32mpu/wiki/OP-TEE_OTP_overview#OP-TEE_OS_configuration

You have to enable "CFG_WITH_USER_TA=y" to be able to read the OTP.

Hope it helps,

Best Regards,
Kevin

[thomas_sato]

Thinks a lot !