user@machine:~$ dmesg | grep -i can
[ 0.000000] OF: fdt:memory scan node memory, reg size 48,
[ 1.528299] tegra-pwm 3280000.pwm: PWM clk can sleep in ops
[ 1.528728] tegra-pwm c340000.pwm: PWM clk can sleep in ops
[ 1.529294] tegra-pwm 32c0000.pwm: PWM clk can sleep in ops
[ 1.529896] tegra-pwm 32f0000.pwm: PWM clk can sleep in ops
[ 2.009601] FAN: can’t find tach_gpio
[ 46.463066] can: controller area network core (rev 20120528 abi 9)
[ 46.481049] can: raw protocol (rev 20120528)
[ 46.500554] CAN device driver interface
[ 46.512440] net can0: mttcan device registered (regs=ffffff800dc39000, irq=68)
[ 46.526476] net can1: mttcan device registered (regs=ffffff800fd6d000, irq=69)
[ 46.544299] mttcan c310000.mttcan can0: bitrate error 0.2%
[ 46.544443] mttcan c310000.mttcan can0: Bitrate set
[ 46.544456] mttcan c310000.mttcan can0: bitrate error 1.0%
[ 46.562242] mttcan c320000.mttcan can1: bitrate error 0.2%
[ 46.562380] mttcan c320000.mttcan can1: Bitrate set
[ 46.562391] mttcan c320000.mttcan can1: bitrate error 1.0%
[ 46.579542] mttcan_controller_config: ctrlmode 30
[ 46.579577] mttcan c310000.mttcan can0: Bitrate set
[ 46.595333] mttcan_controller_config: ctrlmode 30
[ 46.595367] mttcan c320000.mttcan can1: Bitrate set
[ 72.884007] mttcan c320000.mttcan can1: Bit0 Error Detected
[ 72.884186] mttcan c320000.mttcan can1: IR 0x8010000 PSR 0x71d
[ 72.884321] mttcan c320000.mttcan can1: entered error warning state
[ 72.884431] mttcan c320000.mttcan can1: entered error passive state
[ 72.884539] mttcan c320000.mttcan can1: Bit0 Error Detected
[ 72.884639] mttcan c320000.mttcan can1: IR 0x9800000 PSR 0x76d
[ 72.884759] mttcan c320000.mttcan can1: Bit0 Error Detected
[ 72.884862] mttcan c320000.mttcan can1: IR 0x8000000 PSR 0x77d
[ 72.885001] mttcan c320000.mttcan can1: entered bus off state
[ 72.885102] mttcan c320000.mttcan can1: Bit0 Error Detected
[ 72.885204] mttcan c320000.mttcan can1: IR 0xa000000 PSR 0x7e5