Support and boot from SPI-NOR

I have a SPI NOR on my custom board.
I want to be able to add support for it both from the cboot to enable booting from it and from the user-space to access it as a device.
How can thia be done?
I know I should add a node for it in the dts for the cboot and enable some kernel module for access after booting.

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Are you trying on TX2?
SPI NOR support are already there for Nano and NX. Connected to SPI controller or QSPI controller of tegra.
Which SPI tegra controller you are going to use?

Yes, tx2i
The spi nor is NQ25Q00AA