Jetson nano dev 40 pin expansion header configuration

I want to set up a pin to be able to read spi so I choose to follow this guide.Jetson Nano Developer Kit 40-Pin Expansion Header Configuratio I can fix the sheet here. but not sure how much
jetson-nano-sd.csv (103.9 KB)
And when it comes to the u-boot code, the problem is as follows.

what should i do?

What’s your case need SPI in uboot?

i want to use SPI to read Canbus by using mcp2515

Have reference to below topic.