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Re-burning a fuse register on iMX6

Question asked by colinhelliwell on Jan 29, 2018
Latest reply on Jan 29, 2018 by gusarambula

I assume (though I'm not certain) that if a fuse register - e.g. one of the secure boot ones - is written to then 1s cannot be subsequently changed back to 0s.

But if you write 1's in two operations, does it result in an OR of the values?

In other words, does

    fuse prog -y 3 0 0x00000001; fuse prog -y 3 0 0x00000010

give the same result as

    fuse prog -y 3 0 0x00000011

 

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