Bug Report: Rock 5B CAN enable

[vzhikh]

What happened?

Hi, Failed to enable CAN1 with overlay: U_BOOT_FDT_OVERLAYS="device-tree/rockchip/overlay/rk3588-can1-m1.dtbo"

U-boot successfully updated:

ubuntu@ubunturock5b:~$ cat /boot/extlinux/extlinux.conf | grep "can1"
	fdtoverlays  /lib/firmware/6.1.0-1021-rockchip/device-tree/rockchip/overlay/rk3588-can1-m1.dtbo 

File successfully loaded on boot:

Retrieving file: /lib/firmware/6.1.0-1021-rockchip/device-tree/rockchip/overlay/rk3588-can1-m1.dtbo
343 bytes read in 241 ms (1000 Bytes/s)

But there is no can device in system:

ubuntu@ubunturock5b:~$ sudo ifconfig -a
enP4p65s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.10.0.176  netmask 255.255.252.0  broadcast 10.10.3.255
        inet6 fe80::2e0:4cff:fe03:2b0b  prefixlen 64  scopeid 0x20<link>
        ether 00:e0:4c:03:2b:0b  txqueuelen 1000  (Ethernet)
        RX packets 30897  bytes 2189841 (2.1 MB)
        RX errors 0  dropped 192  overruns 0  frame 0
        TX packets 495  bytes 102416 (102.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 92  bytes 7159 (7.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 92  bytes 7159 (7.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Kernel version

6.1.0-1021-rockchip

SBC model

Rock 5B

What operating system are you seeing this problem on?

Ubuntu 24.04 LTS (Noble Nombat)

Relevant logs

No response

[vzhikh]

On 22.04 it works

[Joshua-Riek]

The Rockchip CAN driver was not fully ported to Linux 6.1. I added a few changes and it should work as expected.

https://github.com/Joshua-Riek/linux-rockchip/commit/acf81a30451ddf8df672da41d60ed5917d98a0c8 https://github.com/Joshua-Riek/linux-rockchip/commit/685cba94b3618660b2a56de0b2cb9d0f6250cc13

[github-actions[bot]]

This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 14 days. Thank you for your contribution!

[github-actions[bot]]

This issue has been closed due to inactivity. If you feel this is in error, please reopen the issue or file a new issue with the relevant details.