kasunvj
commented
1 day ago can0: can@fe570000 { compatible = "rockchip,canfd-1.0"; reg = <0x0 0xfe570000 0x0 0x1000>; interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru CLK_CAN0>, <&cru PCLK_CAN0>; clock-names = "baudclk", "apb_pclk"; resets = <&cru SRST_CAN0>, <&cru SRST_P_CAN0>; reset-names = "can", "can-apb"; tx-fifo-depth = <1>; rx-fifo-depth = <6>; status = "disabled"; };
can1: can@fe580000 {
compatible = "rockchip,canfd-1.0";❌️
compatible = "rockchip,can-1.0";✅️
reg = <0x0 0xfe580000 0x0 0x1000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru CLK_CAN1>, <&cru PCLK_CAN1>;
clock-names = "baudclk", "apb_pclk";
resets = <&cru SRST_CAN1>, <&cru SRST_P_CAN1>;
reset-names = "can", "can-apb";
tx-fifo-depth = <1>;
rx-fifo-depth = <6>;
status = "disabled";
};
can2: can@fe590000 {
compatible = "rockchip,canfd-1.0";
reg = <0x0 0xfe590000 0x0 0x1000>;
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru CLK_CAN2>, <&cru PCLK_CAN2>;
clock-names = "baudclk", "apb_pclk";
resets = <&cru SRST_CAN2>, <&cru SRST_P_CAN2>;
reset-names = "can", "can-apb";
tx-fifo-depth = <1>;
rx-fifo-depth = <6>;
status = "disabled";
}; what is canfd-1.0 and can-1.0
------- CAN0 (as reading from userspace) is connected to can1 in evb ; this is a working no issue log---------------------------------- root@linaro-alip:~# sudo ip link set can0 down root@linaro-alip:~# sudo ip link set can0 type can bitrate 500000[ 353.196969] [dhd][wlan0] wl_run_escan : LEGACY_SCAN sync ID: 8, bssidx: 0 root@linaro-alip:~# sudo ip link set can0 up [ 363.276312] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing [ 363.277339] IPv6: ADDRCONF(NETDEV_UP): can0: link is not ready [ 363.277397] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing [ 363.277485] IPv6: ADDRCONF(NETDEV_CHANGE): can0: link becomes ready [ 363.277502] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
root@linaro-alip:~# sudo ip -details link show can0 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 bitrate 125000 sample-point 0.772 tq 363 prop-seg 8 phase-seg1 8 phase-seg2 5 sjw 1 rockchip_can: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..128 brp-inc 2 clock 297000000numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
can0: flags=193<UP,RUNNING,NOARP> mtu 16 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 10 (UNSPEC) RX packets 1758 bytes 14064 (13.7 KiB) RX errors 60 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 63
--- issue---
root@linaro-alip:~# sudo ip link set can0 down root@linaro-alip:~# sudo ip link set can0 type can bitrate 125000 root@linaro-alip:~# sudo ip link set can0 up [ 4319.582868] rockchip_canfd fe580000.can can0: incorrect/missing data bit-timing
root@linaro-alip:~# sudo ip link set can0 down root@linaro-alip:~# sudo ip link set can0 type can bitrate 500000 [ 4524.860242] rockchip_canfd fe580000.can can0: bitrate error 0.3% root@linaro-alip:~# sudo ip link set can0 up [ 4529.717675] rockchip_canfd fe580000.can can0: incorrect/missing data bit-timing
2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 bitrate 500000 sample-point 0.818 tq 181 prop-seg 4 phase-seg1 4 phase-seg2 2 sjw 1 rockchip_can: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..128 brp-inc 2 clock 297000000numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535