TCAN4550: whether the my dts entry is right to enable CANFD in imx6ull processor?

Hi Pooja,

Which driver are you using, and from where did you download it?

Max

This driver i written using tcan4x5x.txt file

using the requirements.

Pooja,

Is this a Linux application?  The latest driver is found here and is part of the 5.4 kernel:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/can/m_can

Is this what you are using?

Note that generally this forum is for device-specific questions rather than questions on software implementation.  I will try my best to help you, but our expertise is much more on the device side rather than the processor configuration.

Max

yes,this driver only i loopbacked from linux kernal 5.4 to linux 4.19.21 kernal.

for this i m getting vesion not supported.

That may be the problem.  Some driver modifications may be needed to properly back-port to this previous kernel version.  As an example, I believe you can find a version that was back-ported to 4.14 here:

Regards,
Max

thank you for this file.i got to where i am going wrong.

but now i am getting error as given below

[    3.998244] ERROR: could not get clock /soc/aips-bus@2000000/spba-bus@2000000/ecspi@2008000/tcan4x5x@0:hclk(0)
[    4.009033] ERROR: could not get clock /soc/aips-bus@2000000/spba-bus@2000000/ecspi@2008000/tcan4x5x@0:cclk(1)
[    4.019671] tcan4x5x spi0.0: no clock found
[    4.024170] tcan4x5x spi0.0: no CAN clock source defined
[    4.031298] REL_VALUE:0
[    4.035969] crel_reg = 0
[    4.038644] rel : 0
[    4.041080] step : 0
[    4.043409] tcan4x5x spi0.0: Unsupported version number:  0
[    4.049091] status:-22
[    4.049200] tcan4x5x spi0.0: Probe failed, err=-22
[    4.058439] tcan4x5x: probe of spi0.0 failed with error -22

where do i define this clock?and hclk and cclk both clocks  are mandatory for this driver?let me know this.

and it is giving unsupported version again, how do i solve it?

below is my dts entry

&ecspi1 {
        fsl,spi-num-chipselects = <1>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_ecspi1>;
        status = "okay";

 tcan4x5x: tcan4x5x@0 {
               compatible = "ti,tcan4x5x";
               reg = <0>;
               #address-cells = <1>;
               #size-cells = <1>;
               spi-max-frequency = <18000000>;
               clock-names = "hclk", "cclk";
               bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
               data-ready-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
               device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
               device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;

      };
};

hello, i solved with the clock error,but i am not getting about the version number

still it is giving with the "Unsupported version"

please help me out,