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→Boot from eFUSEs
The term eFUSEs refer to an one-time-programmable (OTP) memory integrated in iMX6UL processor. This memory is organized in several 32-bit words. Three of these words - named BOOT_CFG - are used to store configuration bits that affect boot process, when ''Boot from eFUSEs'' mode is selected. In this case, Boot ROM reads BOOT_CFG words and acts consequently.
BOOT_CFG includes many configuration settings. Two Some of them are particularly important for the boot strategy:
*BT_FUSE_SEL
*SDMMC_MFG_DISABLE*.
The use of these settings will be more clear soon.
