AnsweredAssumed Answered

steps for going to efuses?

Question asked by David Luberger on Nov 29, 2018
Latest reply on Nov 30, 2018 by Victor Linnik

I want to enable the low power boot mode on my imx6sx processor, but it can only be done through fuses. I've only ever used gpio override mode and i'm worried i'm going to brick my eval board.  The reference manual gives a table of settings that can be enabled via fuses, and my understanding is that going from a "0" to a "1" is non-reversible, so I only want to set the fuses that I absolutely need. I'm using the SoloX SABRE SD eval board, so I would want to duplicate the boot device settings and then only add the low power boot mode (i'm looking to use the absolutely lowest frequency settings in low power boot mode).

I know u-boot comes with the "fuse" command, but I'm worried I'll screw something up if I jump in blindly.  Is there a guide with explicit steps and fuse register values to use?