This isn’t exactly working out of the box, the second SPI interface, spi1.0 doesn’t come up, i’m thinking to disable CRC check in the driver,
I’m running the RPI 3B+, the build shows
>make bcm2711_defconfig in the instructions @Baozhu , but lsmods shows spi_bcm2835 as that any relevance?
more details below
pi@raspberrypi:~ $ dmesg | grep spi
[ 6.618121] mcp25xxfd spi0.0: MCP2517 successfully initialized.
[ 6.684243] mcp25xxfd spi1.0: CRC read error: computed: ec03 received: 0000 - data: be 00 04 00 00 00 00
[ 6.684264] mcp25xxfd spi1.0: CRC read of clock register resulted in a bad CRC mismatch - hw not found
[ 6.684285] mcp25xxfd spi1.0: Probe failed, err=84
[ 6.684424] mcp25xxfd: probe of spi1.0 failed with error -84
pi@raspberrypi:~ $ lsmod | grep spi
spi_bcm2835aux 16384 0
spi_bcm2835 20480 0
pi@raspberrypi:~ $ uname -an
Linux raspberrypi 5.4.51-v7+ #1327 SMP Thu Jul 23 10:58:46 BST 2020 armv7l GNU/Linux
I read that on the original driver here
one can remove the CRC check and it should come up the second CAN channel over SPI
what do you think?