Hi lille
please look at fuse Unique ID in Table 5-9. Fusemap Descriptions
i.MX6UL Reference Manual
http://www.nxp.com/docs/en/reference-manual/IMX6ULRM.pdf
fuses operations
Q&A: How to program i.MX6 eFUSE?
uboot/arch/arm/cpu/armv7/mx6/module_fuse.c
uboot-imx.git - Freescale i.MX u-boot Tree
Best regards
igor
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