i.MX ProcessorsのトピックRe: i.MX6 Fuse writing from Kernel

i.MX6 Fuse writing from Kernel

colinwernham — Fri, 13 May 2016 07:36:10 GMT

I want to read and blow fuses from the Linux 4.1+ kernel, but there is no driver for this. These was one for the 3.14.14 kernel called fsl_otp, but a simple transfer of this driver does not work.

Has anyone got a driver for 4.1+? It must be able to blow fuses.

Note that I want to do this from the kernel, not the u-boot.

Thanks.

Re: i.MX6 Fuse writing from Kernel

Yuri — Fri, 13 May 2016 08:26:47 GMT

Hello,

Have You tried the recent NXP Linux BSP (4.1.15_1.1.0 [Current Release])?

i.MX 6 Series Software and Development Tool|NXP

Have a great day,
Yuri

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Re: i.MX6 Fuse writing from Kernel

lmhdoms — Tue, 28 Jun 2016 10:41:51 GMT

Yuri, thanks for the hint, I had the same need and I was able to pick the fsl_otp driver for use in linux-fslc 4.1.7.

Here are the relevant patches:

http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/log/?h=imx_4.1.15_1.0.0_ga&qt=grep&q=MLK-11371

Regards,

Lars