Not Able to Detect CAN Bus on my system - Not Able to Detect CAN Bus on my system Hello support. I am not able to detect my CAN bus on my custom board, this is Cyclone 5 soc device. Please help. Replies: Re: Not Able to Detect CAN Bus on my system Hello. We have manged to make CAN0 and CAN1 working but we have a problem with the bus speed. We are getting 3 around 39 kbit/s when configuring 125 kbit/s. Although we have 100Mhz clock configured in Preloader and registers in the clock manager, system reports 40Mhz when listing driver configuration ( ip -d -s link show can0 ). If we force driver to read 100Mhz clock, we get 15.625 kbit/s, this is, 8 times slower than expected. If we force driver to read 12.5Mhz clock, we get correct bus speed. The same is hapening with CAN1. Replies: Re: Not Able to Detect CAN Bus on my system Hello FJumaah, Wow amazing.... Thanks for your help. I was able to solve my problem by following item 1. Replies: Re: Not Able to Detect CAN Bus on my system hello AJuba, This might fall within 2 reasons: 1- the CAN bus is not enabled in device tree. to enable this, you need to modify the dts file, it might be something like this: can0: can@ffc00000 { compatible = "bosch,d_can"; reg = <0xffc00000 0x1000>; interrupts = <0 131 4>, <0 132 4>, <0 133 4>, <0 134 4>; clocks = <&can0_clk>; status = "disabled"; }; can1: can@ffc01000 { compatible = "bosch,d_can"; reg = <0xffc01000 0x1000>; interrupts = <0 135 4>, <0 136 4>, <0 137 4>, <0 138 4>; clocks = <&can1_clk>; status = "disabled"; }; both status="disabled" should be enabled if you have 2 CAN buses. 2- Make sure to enable CAN bus driver in Linux Kernel menuconfig. -> Networking Support -> <*> CAN Bus Subsystem Support -> <*> Raw CAN Protocol -> <*> Broadcast Manager CAN Protocol -> <*> CAN Gateway/Router CAN Device Drivers -> <*> Platform CAN drivers with Netlink support -> [*] CAN bit-timing calculation -> <*> Bosch C_CAN/D_CAN Devices -> <*> Generic Platform Bus based C_CAN/D_CAN Driver -> [*] CAN devices debugging messages Hope this might help. Thanks Replies: Re: Not Able to Detect CAN Bus on my system Anyone can help me on this?