On Thu, Jun 15, 2017 at 5:14 PM, Piotr C <[email protected]> wrote:
> Yes, it popped accidentally due to copying command from one of the tutorials
> that I have linked.
>
> I have added:
> uboot_overlay_addr4=/lib/firmware/BB-CAN1-00A0.dtbo
> as you suggested.
>
> It changed the output of cat
> /sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins
>
>
> pin 96 (44e10980.0): 481d0000.can (GPIO UNCLAIMED) function
> pinmux_dcan1_pins group pinmux_dcan1_pins
> pin 97 (44e10984.0): 481d0000.can (GPIO UNCLAIMED) function
> pinmux_dcan1_pins group pinmux_dcan1_pins
>
> However, after typing:
> root@beaglebone:/home/debian# cat /sys/devices/platform/bone_capemgr/slots
>  0: ---l--  -1
>  1: ------  -1
>  2: ---l--  -1
>  3: ---l--  -1
>  4: --Ol--  -1
>  5: --O---  -1
>
> In line 5: I was expecting some text like: "Override Board
> Name,00A0,Override (...)"
> // taken from here:
>
> Should I expect a change in slots configuration after adding the lines that
> you have mentioned in /boot/uEnv.txt?
> Is there any other to check whether the CAN Device Tree overlay was properly
> loaded?

With u-boot overlays, the "/sys/devices/platform/bone_capemgr/slots"
is not updated..

you should see the can interface showing up under:

sudo ifconfig -a

Regards,


-- 
Robert Nelson
https://rcn-ee.com/

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