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→SPI NOR / SD option
Selection of primary boot device is determined by the BOOT_MODE_SEL signal as follows:
* BOOT_MODE_SEL = 0
** primary boot device is SD1 (see section TBD for more details)** in case no valid image is found in SD card, boot ROM shall enable USB serial download mode automatically
* BOOT_MODE_SEL = 1 or floating
** primary boot device is SPI NOR flash connected to eCSPI1 (see section TBD for more details)** in case no valid image is found in NOR flash, boot ROM shall enable USB serial download mode automatically
=== NAND / SD option ===
Selection of primary boot device is determined by the BOOT_MODE_SEL signal as follows:
