topic Re: u-boot otp in i.MX Processors

u-boot otp

niklasmolin — Fri, 29 Aug 2014 16:16:55 GMT

Hi.

I'm running the u-boot generated from the Yocto project (2014).

I'm trying to see what values the OTPs have (check the speed grade etc.) and I saw a another post that mentioned imxotp command.

But it seems like it's not in this u-boot version.

Is there a config settings (when compiling) I need to do to enable this or is there another way in this u-boot version?

Thanks,

Niklas

fabio_estevam — Sat, 30 Aug 2014 12:27:28 GMT

If you use the latest boot you can activate the fuse API by adding the following options in your config file:

#define CONFIG_CMD_FUSE

#ifdef CONFIG_CMD_FUSE

#define CONFIG_MXC_OCOTP

#endif

You can look at mx6sabre_common.h as reference.

These following docs are also helpful to understand how the fuse api works:

doc/README.mxc_ocotp

doc/README.imx6