Orin SPI2 in jekpack 6.2 can not work

Please share the block diagram of your connection for SPI2 with MCP2518FD module.

Have you applied the following patch for SPI driver?
Jetson orin nano SPI Speed not changing - #9 by KevinFFF

Please also share the full dmesg for further check.

You can also check if the clock settings for spi1 and spi2 are similar.

$ sudo su
# cd /sys/kernel/debug/bpmp/debug/clk
# grep "" spi*/rate