HI NXP :
I have a MCIMX6Q-SDB,I want to burn uboot in SPI flash，let uboot to boot from SPI flash,but I do not know how to achieve.I reviewed the document SPF-27392_C5.pdf and i.MX_Linux_User's_Guide.pdf and i.MX_6_SABRE-SD_Linux_User's_Guide.pdf ,but did not mention how burn uboot in SPI flash and start uboot from QSPI FLASH.
please help me ，thank you very much！！！
since imx6q AI board supports spi boot, you can refer to the schematic of imx6 AI board,
I attached the schematic
for IOMUX, you should refer to the imx6q reference manual, focus on table 8-25