i.mx8 Fuse map

mobrien — Thu, 14 May 2020 23:05:30 GMT

Thanks Shivani and Yuri,

Is there a unique ID in the fusemap that we can read?

Also - can we use the _GP registers listed on page 850 of the RM: HCOTP_HW_OCOTP_GP10 etc to store some data specificaly for our software?

Also - I'm finding that the addressing from the blog link above is not working with the version of uboot that I have.

=> fuse prog 0 708 0xa295fc11

Best Regards,

-Mike

Re: i.mx8 Fuse map

Yuri — Fri, 15 May 2020 06:08:10 GMT

mobrien@uaudio.com

Hello,

i.MX8M RM contains fusemap chapter, in particular in Table 6-43 (Fusemap Descriptions)
of i.MX 8M Dual/8M QuadLite/8M Quad Reference Manual, Rev. 2, 08/2019, UNIQUE_ID
fuse is located in Fuse Address offsets (0x410 and) 0x420. To get the values -
read the bank 0, words 1 and 2.

fuse read 0 1
fuse read 0 2

As for the General Purpose fuse registers - some of them are reserved, in any case we cannot

not guarantee them for free using.

Regards,

Yuri.

topic Re: i.mx8 Fuse map in i.MX Processors

i.mx8 Fuse map

Re: i.mx8 Fuse map