topic SEC_CONFIG mode in i.MX Processors

SEC_CONFIG mode

myungjinhwang — Mon, 16 Feb 2015 13:32:19 GMT

I have a i.mx6 sabrelite board and developing it.

I followed the command but the board does not working now.

7 After verify all the HAB function, blow SEC_CONFIG fuse to close mode.

$ echo 0x2 > /sys/fsl_otp/HW_OCOTP_CFG5

I think it was now verified all and then I did the command. so the SEC_CONFIG is closed state now.

I thought that I can solve this problem on recovery mode using sb_loader(sb_loader.exe -f u-boot.imx).

But it is still not working.

Therefore, is there any good guide for this situation?

Re: SEC_CONFIG mode

igorpadykov — Tue, 17 Feb 2015 01:48:23 GMT

Hi MyungJin

you can try to run it with jtag.

Best regards

igor

Re: SEC_CONFIG mode

Yuri — Tue, 17 Feb 2015 06:30:01 GMT

Have You provided correct CSF file, as mentioned in Mx6 HAB (High Assurance Boot) ?

8 If there is no HAB event in open mode, but your board cannot bootup after program SEC_CONFIG to close mode, please check if you have unlocked RNG in CSF script.

[Unlock]

Engine = CAAM

Features = RNG

Have a great day,
Yuri

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