I'm trying to make a RPI3 buildroot image with CAN interface. So far I don't see any device in /sys/bus/spi/devices Please help
What I did are below
At the buildroot terminal "make raspberrypi3_defconfig" then enabled those below via "make xconfig" and "make linux-xconfig"
- BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV
- BR2_PACKAGE_IPROUTE2
- NET
- CAN
- CAN_DEV
- SPI
- CAN_MCP251X
After that I flashed sdcard.img to an SD card then I add those two lines below to config.txt dtparam=spi=on dtoverlay=mcp2515-can0,oscillator=12000000,interrupt=25
I expected to see spi0.0 but I don't see any device in /sys/bus/spi/devices
Can you please help? Thank you