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I am tring to connect the TCAN4550 tothe Raspberry Pi 3B+ and I can't seem to figure out the process to get the linux driver working. I have updated the kernel to 5.4.42 so as far as I can tell the driver should be built in but I cannot figure out how to actually communicate with the TCAN4550. Any help would be greatly appreciated.
Hi Nathan,
Have you setup the device tree bindings for the TCAN4x5x interface for your board?
Regards,
Jonathan
I have not setup the device tree bindings. I am attempting to follow the instructions at https://www.raspberrypi.org/documentation/configuration/device-tree.md for implementing a new device tree binding but when I try to use the dtc command on the .dts file I created containing the example tcan4x5x that you posted I get an error that dtc is unable to parse the input tree. Thanks for your help,
Nathan
The device tree bindings in the example are specific to the processor used and the GPIO lines that will be used. You will need to adjust these for your specific application and hardware. I would suggest following another Raspberry Pi example of a device tree binging for GPIO lines and SPI to help determine what modifications may be necessary. The TCAN4x5x device tree bindings were based on a TI Processor and not a Raspberry Pi.
Also, could you post specific error messages you receive to help us better understand the specific problems you are facing and help us provide more specific suggestions on a possible solution.
Regards,
Jonathan
Okay, I think I'm moving closer to having a fix but I'm not there yet. I have adapted https://github.com/Ysurac/raspberry_kernel_mptcp/blob/master/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts to fit with the tcan4x5x device tree bindings resulting in this dts file.
/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
/* disable spi-dev for spi0.0 */
fragment@0 {
target = <&spi0>;
__overlay__ {
status = "okay";
};
};
fragment@1 {
target = <&spidev0>;
__overlay__ {
status = "disabled";
};
};
/* the interrupt pin of the can-controller */
fragment@2 {
target = <&gpio>;
__overlay__ {
tcan4x5x_pins: tcan4x5x_pins {
brcm,pins = <25>;
brcm,function = <0>; /* input */
};
};
};
/* the spi config of the can-controller itself binding everything together */
fragment@4 {
target = <&spi0>;
__overlay__ {
/* needed to avoid dtc warning */
#address-cells = <1>;
#size-cells = <1>;
tcan4x5x: tcan4x5x@0 {
compatible = "ti,tcan4x5x";
reg = <0>;
pinctrl-names = "default";
pinctrl-0 = <&tcan4x5x_pins>;
spi-max-frequency = <10000000>;
bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
interrupt-parent = <&gpio>;
interrupts = <25 0x2>;
};
};
};
__overrides__ {
oscillator = <&tcan4x5x_osc>,"clock-frequency:0";
spimaxfrequency = <&tcan4x5x>,"spi-max-frequency:0";
interrupt = <&tcan4x5x_pins>,"brcm,pins:0",<&tcan4x5x>,"interrupts:0";
};
};
I then compiled this dts file into a dtbo file and placed it into /boot/overlays on the raspberry pi. Is there anything else I need to do? I don't get any errors as far as I can tell but I cant find how to access the tcan4450 even with the device tree binding hopefully working.
Thanks,
Nathan
Can anyone verify my dts file is setup correctly, Any help would be greatly appreciated.
Thanks,
Nathan
Hi Nathan,
I'm sorry for the delay and overlooking your previous post. I will review the file you provided and follow up shortly.
Regards,
Jonathan
Hi Nathan,
I didn't see anything that I thought was a problem with your DTS file and I checked with our developer as well. If it doesn't give any compile errors, there isn't much more we can say about it without boot logs that might show something different.
In order to to access the TCAN4550, you will need to download and build the Linux CAN Utils https://github.com/linux-can/can-utils. This provides the interface to the CAN device and to send and receive packets. This was how the driver was developed and tested and you can view the CAN interfaces through this IP.
Here is a wiki you can use as a general reference for this. https://developer.ridgerun.com/wiki/index.php/How_to_configure_and_use_CAN_bus
Once you have the can-utils IP loaded, our developer provided me with a list of some commands he used during the development and verification that you can use a reference to get started:
Sends a message non FD message
./ip link set can0 up type can bitrate 500000
./cansend can0 123#DEADBEEF
Receives messages
./candump -a can0
Sets up CAN FD and generates numerous packets
./ip link set can0 up type can bitrate 500000 dbitrate 2000000 fd on
./cangen can0 -g 0 -p 3 -i -f -e &
Below stops cangen from sending packets
kill $(ps ax | grep -m 1 cangen | awk '{print$1}')
shows CAN interface
./ip -d link show can0
Regards,
Jonathan
I don't get any errors when I comple the device tree overlay but I also cant find any references to can being started in the boot logs. Would I get errors if my device tree overlay was setup incorrectly or would it just fail silently? I have attached both my boot log and my config.txt to see if there is anything going obvously wrong.
Thanks for your help,
Nathan
# For more options and information see # http://rpf.io/configtxt # Some settings may impact device functionality. See link above for details # uncomment if you get no picture on HDMI for a default "safe" mode #hdmi_safe=1 # uncomment this if your display has a black border of unused pixels visible # and your display can output without overscan disable_overscan=1 # uncomment the following to adjust overscan. Use positive numbers if console # goes off screen, and negative if there is too much border #overscan_left=16 #overscan_right=16 #overscan_top=16 #overscan_bottom=16 # uncomment to force a console size. By default it will be display's size minus # overscan. #framebuffer_width=1280 #framebuffer_height=720 # uncomment if hdmi display is not detected and composite is being output #hdmi_force_hotplug=1 # uncomment to force a specific HDMI mode (this will force VGA) #hdmi_group=1 #hdmi_mode=1 # uncomment to force a HDMI mode rather than DVI. This can make audio work in # DMT (computer monitor) modes #hdmi_drive=2 # uncomment to increase signal to HDMI, if you have interference, blanking, or # no display #config_hdmi_boost=4 # uncomment for composite PAL #sdtv_mode=2 #uncomment to overclock the arm. 700 MHz is the default. #arm_freq=800 # Uncomment some or all of these to enable the optional hardware interfaces dtparam=i2c_arm=on,i2c_arm_baudrate=400000 #dtparam=i2s=on #dtparam=spi=on # Uncomment this to enable infrared communication. #dtoverlay=gpio-ir,gpio_pin=17 #dtoverlay=gpio-ir-tx,gpio_pin=18 # Additional overlays and parameters are documented /boot/overlays/README # Enable audio (loads snd_bcm2835) dtparam=audio=on [pi4] # Enable DRM VC4 V3D driver on top of the dispmanx display stack dtoverlay=vc4-fkms-v3d max_framebuffers=2 [all] #dtoverlay=vc4-fkms-v3d dtparam=spi=on dtoverlay=tcan4x5x-can0 dtoverlay=spi-bcm2835
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.4.42-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1319 SMP Wed May 20 14:06:11 BST 2020
[ 0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B Plus Rev 1.3
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Reserved memory: created CMA memory pool at 0x37400000, size 64 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] On node 0 totalpages: 242688
[ 0.000000] Normal zone: 1896 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 242688 pages, LIFO batch:63
[ 0.000000] percpu: Embedded 20 pages/cpu s49792 r8192 d23936 u81920
[ 0.000000] pcpu-alloc: s49792 r8192 d23936 u81920 alloc=20*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 240792
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 bcm2708_fb.fbwidth=1920 bcm2708_fb.fbheight=1080 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=ea7d04d6-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 882468K/970752K available (8192K kernel code, 679K rwdata, 2524K rodata, 1024K init, 824K bss, 22748K reserved, 65536K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 27876 entries in 55 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] random: get_random_bytes called from start_kernel+0x328/0x4e8 with crng_init=0
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[ 0.000022] Switching to timer-based delay loop, resolution 52ns
[ 0.000294] Console: colour dummy device 80x30
[ 0.000878] printk: console [tty1] enabled
[ 0.000944] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
[ 0.000992] pid_max: default: 32768 minimum: 301
[ 0.001340] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.001386] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.002575] CPU: Testing write buffer coherency: ok
[ 0.003144] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.004086] Setting up static identity map for 0x100000 - 0x10003c
[ 0.004304] rcu: Hierarchical SRCU implementation.
[ 0.004992] smp: Bringing up secondary CPUs ...
[ 0.006117] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.007367] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.008509] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.008663] smp: Brought up 1 node, 4 CPUs
[ 0.008750] SMP: Total of 4 processors activated (153.60 BogoMIPS).
[ 0.008778] CPU: All CPU(s) started in HYP mode.
[ 0.008802] CPU: Virtualization extensions available.
[ 0.009753] devtmpfs: initialized
[ 0.026229] VFP support v0.3: implementor 41 architecture 3 part 40 variant 3 rev 4
[ 0.026532] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.026588] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.029628] pinctrl core: initialized pinctrl subsystem
[ 0.030838] NET: Registered protocol family 16
[ 0.035014] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.041306] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.041346] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.041584] Serial: AMBA PL011 UART driver
[ 0.043538] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[ 0.060118] raspberrypi-firmware soc:firmware: Attached to firmware from 2020-05-21 11:52, variant start
[ 0.070131] raspberrypi-firmware soc:firmware: Firmware hash is 2550bfc9d3e30e49382d22435da0c1ca23937b54
[ 0.124849] bcm2835-dma 3f007000.dma: DMA legacy API manager, dmachans=0x1
[ 0.127025] SCSI subsystem initialized
[ 0.127308] usbcore: registered new interface driver usbfs
[ 0.127389] usbcore: registered new interface driver hub
[ 0.127540] usbcore: registered new device driver usb
[ 0.129509] clocksource: Switched to clocksource arch_sys_counter
[ 1.284707] VFS: Disk quotas dquot_6.6.0
[ 1.284853] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 1.285059] FS-Cache: Loaded
[ 1.285324] CacheFiles: Loaded
[ 1.296652] thermal_sys: Registered thermal governor 'step_wise'
[ 1.297045] NET: Registered protocol family 2
[ 1.297989] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 1.298058] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 1.298199] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 1.298408] TCP: Hash tables configured (established 8192 bind 8192)
[ 1.298589] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.298661] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.298969] NET: Registered protocol family 1
[ 1.299808] RPC: Registered named UNIX socket transport module.
[ 1.299840] RPC: Registered udp transport module.
[ 1.299866] RPC: Registered tcp transport module.
[ 1.299891] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.301592] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 7 counters available
[ 1.304878] Initialise system trusted keyrings
[ 1.305135] workingset: timestamp_bits=30 max_order=18 bucket_order=0
[ 1.315649] FS-Cache: Netfs 'nfs' registered for caching
[ 1.316328] NFS: Registering the id_resolver key type
[ 1.316388] Key type id_resolver registered
[ 1.316414] Key type id_legacy registered
[ 1.316449] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.317683] Key type asymmetric registered
[ 1.317713] Asymmetric key parser 'x509' registered
[ 1.317780] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 1.317817] io scheduler mq-deadline registered
[ 1.317844] io scheduler kyber registered
[ 1.321398] bcm2708_fb soc:fb: FB found 1 display(s)
[ 1.395997] Console: switching to colour frame buffer device 240x67
[ 1.429600] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 1920x1080
[ 1.431635] raspberrypi-clk firmware-clocks: CPU frequency range: min 600000000, max 1400000000
[ 1.435595] bcm2835-rng 3f104000.rng: hwrng registered
[ 1.436247] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 1.437202] vc-sm: Videocore shared memory driver
[ 1.437803] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[ 1.449916] brd: module loaded
[ 1.462343] loop: module loaded
[ 1.463868] Loading iSCSI transport class v2.0-870.
[ 1.464913] libphy: Fixed MDIO Bus: probed
[ 1.465172] usbcore: registered new interface driver lan78xx
[ 1.465404] usbcore: registered new interface driver smsc95xx
[ 1.465593] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 2.193994] Core Release: 2.80a
[ 2.194109] Setting default values for core params
[ 2.194287] Finished setting default values for core params
[ 2.394843] Using Buffer DMA mode
[ 2.394958] Periodic Transfer Interrupt Enhancement - disabled
[ 2.395134] Multiprocessor Interrupt Enhancement - disabled
[ 2.395304] OTG VER PARAM: 0, OTG VER FLAG: 0
[ 2.395459] Dedicated Tx FIFOs mode
[ 2.396279] WARN::dwc_otg_hcd_init:1074: FIQ DMA bounce buffers: virt = b7514000 dma = 0xf7514000 len=9024
[ 2.396581] FIQ FSM acceleration enabled for :
Non-periodic Split Transactions
Periodic Split Transactions
High-Speed Isochronous Endpoints
Interrupt/Control Split Transaction hack enabled
[ 2.397190] dwc_otg: Microframe scheduler enabled
[ 2.397265] WARN::hcd_init_fiq:457: FIQ on core 1
[ 2.397416] WARN::hcd_init_fiq:458: FIQ ASM at 806bc564 length 36
[ 2.397601] WARN::hcd_init_fiq:497: MPHI regs_base at bb810000
[ 2.397789] dwc_otg 3f980000.usb: DWC OTG Controller
[ 2.397996] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[ 2.406378] dwc_otg 3f980000.usb: irq 56, io mem 0x00000000
[ 2.414628] Init: Port Power? op_state=1
[ 2.422700] Init: Power Port (0)
[ 2.431051] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 2.439147] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.447235] usb usb1: Product: DWC OTG Controller
[ 2.455243] usb usb1: Manufacturer: Linux 5.4.42-v7+ dwc_otg_hcd
[ 2.463260] usb usb1: SerialNumber: 3f980000.usb
[ 2.471905] hub 1-0:1.0: USB hub found
[ 2.479879] hub 1-0:1.0: 1 port detected
[ 2.488483] dwc_otg: FIQ enabled
[ 2.488493] dwc_otg: NAK holdoff enabled
[ 2.488502] dwc_otg: FIQ split-transaction FSM enabled
[ 2.488517] Module dwc_common_port init
[ 2.488892] usbcore: registered new interface driver usb-storage
[ 2.497155] mousedev: PS/2 mouse device common for all mice
[ 2.506684] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[ 2.516094] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 600000 KHz
[ 2.528041] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 700000 KHz
[ 2.537139] sdhci: Secure Digital Host Controller Interface driver
[ 2.544158] sdhci: Copyright(c) Pierre Ossman
[ 2.551676] mmc-bcm2835 3f300000.mmcnr: could not get clk, deferring probe
[ 2.559253] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe
[ 2.566558] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.575418] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.582745] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.590191] usbcore: registered new interface driver usbhid
[ 2.597336] usbhid: USB HID core driver
[ 2.605315] vchiq: vchiq_init_state: slot_zero = (ptrval)
[ 2.614236] [vc_sm_connected_init]: start
[ 2.624268] [vc_sm_connected_init]: end - returning 0
[ 2.633260] Initializing XFRM netlink socket
[ 2.640341] NET: Registered protocol family 17
[ 2.647472] Key type dns_resolver registered
[ 2.654974] Registering SWP/SWPB emulation handler
[ 2.662212] registered taskstats version 1
[ 2.668984] Loading compiled-in X.509 certificates
[ 2.676117] Key type ._fscrypt registered
[ 2.682768] Key type .fscrypt registered
[ 2.700030] uart-pl011 3f201000.serial: cts_event_workaround enabled
[ 2.706735] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2
[ 2.713853] Indeed it is in host mode hprt0 = 00021501
[ 2.782099] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 2.790220] mmc-bcm2835 3f300000.mmcnr: mmc_debug:0 mmc_debug2:0
[ 2.797062] mmc-bcm2835 3f300000.mmcnr: DMA channel allocated
[ 2.805657] random: fast init done
[ 2.830385] sdhost: log_buf @ (ptrval) (f7513000)
[ 2.874199] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 2.882735] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 2.891126] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 2.897867] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[ 2.906858] of_cfs_init
[ 2.913837] of_cfs_init: OK
[ 2.921876] Waiting for root device PARTUUID=ea7d04d6-02...
[ 2.927099] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[ 2.949551] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 2.956204] Indeed it is in host mode hprt0 = 00001101
[ 3.074397] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.081534] mmc1: new high speed SDIO card at address 0001
[ 3.089705] mmc0: new high speed SDXC card at address aaaa
[ 3.097180] mmcblk0: mmc0:aaaa SL64G 59.5 GiB
[ 3.111268] mmcblk0: p1 p2
[ 3.148666] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.155735] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 3.167282] devtmpfs: mounted
[ 3.180161] Freeing unused kernel memory: 1024K
[ 3.187396] Run /sbin/init as init process
[ 3.199887] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 3.206929] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.214661] hub 1-1:1.0: USB hub found
[ 3.221694] hub 1-1:1.0: 4 ports detected
[ 3.549579] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 3.679942] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[ 3.687079] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.694938] hub 1-1.1:1.0: USB hub found
[ 3.702178] hub 1-1.1:1.0: 3 ports detected
[ 3.873660] systemd[1]: System time before build time, advancing clock.
[ 4.029853] usb 1-1.1.2: new low-speed USB device number 4 using dwc_otg
[ 4.040459] NET: Registered protocol family 10
[ 4.048817] Segment Routing with IPv6
[ 4.097012] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[ 4.113200] systemd[1]: Detected architecture arm.
[ 4.200002] usb 1-1.1.2: New USB device found, idVendor=413c, idProduct=2003, bcdDevice= 3.06
[ 4.200055] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.200104] usb 1-1.1.2: Product: Dell USB Keyboard
[ 4.200148] usb 1-1.1.2: Manufacturer: Dell
[ 4.244678] input: Dell Dell USB Keyboard as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/0003:413C:2003.0001/input/input0
[ 4.265837] systemd[1]: Set hostname to <raspberrypi>.
[ 4.310250] hid-generic 0003:413C:2003.0001: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-3f980000.usb-1.1.2/input0
[ 4.419633] usb 1-1.1.3: new low-speed USB device number 5 using dwc_otg
[ 4.563982] usb 1-1.1.3: New USB device found, idVendor=045e, idProduct=0797, bcdDevice= 2.00
[ 4.572580] usb 1-1.1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 4.581484] usb 1-1.1.3: Product: USB Optical Mouse
[ 4.594476] input: USB Optical Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.3/1-1.1.3:1.0/0003:045E:0797.0002/input/input1
[ 4.603689] hid-generic 0003:045E:0797.0002: input,hidraw1: USB HID v1.11 Mouse [USB Optical Mouse] on usb-3f980000.usb-1.1.3/input0
[ 4.909575] usb 1-1.1.1: new high-speed USB device number 6 using dwc_otg
[ 5.050035] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800, bcdDevice= 3.00
[ 5.058952] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.248434] random: systemd: uninitialized urandom read (16 bytes read)
[ 5.275673] random: systemd: uninitialized urandom read (16 bytes read)
[ 5.285353] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 5.306497] random: systemd: uninitialized urandom read (16 bytes read)
[ 5.316176] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 5.335404] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): No External EEPROM. Setting MAC Speed
[ 5.336559] libphy: lan78xx-mdiobus: probed
[ 5.358549] systemd[1]: Listening on udev Control Socket.
[ 5.382831] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[ 5.399469] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): int urb period 64
[ 5.421788] systemd[1]: Reached target Swap.
[ 5.450613] systemd[1]: Created slice system-getty.slice.
[ 5.482243] systemd[1]: Created slice User and Session Slice.
[ 5.836747] i2c /dev entries driver
[ 6.550480] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 6.673805] systemd-journald[124]: Received request to flush runtime journal from PID 1
[ 7.347818] mc: Linux media interface: v0.10
[ 7.377568] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.380023] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[ 7.380046] [vc_sm_connected_init]: start
[ 7.386975] videodev: Linux video capture interface: v2.00
[ 7.387953] [vc_sm_connected_init]: installed successfully
[ 7.447395] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.447399] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.452590] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.456353] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.464446] bcm2835_audio bcm2835_audio: card created with 4 channels
[ 7.466312] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.473074] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.478998] bcm2835_audio bcm2835_audio: card created with 4 channels
[ 7.480536] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[ 7.482973] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[ 7.483528] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[ 7.483946] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[ 7.484263] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[ 7.484297] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[ 7.484332] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[ 7.484350] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[ 7.484365] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[ 7.484545] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[ 7.499454] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[ 7.499582] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[ 7.535281] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[ 7.535435] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[ 7.557254] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[ 7.557466] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[ 7.968805] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 8.171943] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 8.299969] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 8.307847] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 8.309002] usbcore: registered new interface driver brcmfmac
[ 8.348838] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt failed with error -2
[ 8.579893] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 8.592048] random: crng init done
[ 8.592068] random: 7 urandom warning(s) missed due to ratelimiting
[ 8.595965] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Mar 2 2020 23:30:41 version 7.45.202 (r724630 CY) FWID 01-72f6ece2
[ 10.729375] uart-pl011 3f201000.serial: no DMA platform data
[ 10.873649] 8021q: 802.1Q VLAN Support v1.8
[ 11.169677] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFS
[ 11.348012] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[ 11.729130] 8021q: adding VLAN 0 to HW filter on device eth0
[ 16.288878] fuse: init (API version 7.31)
[ 17.392233] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 17.479470] Bluetooth: Core ver 2.22
[ 17.479612] NET: Registered protocol family 31
[ 17.479617] Bluetooth: HCI device and connection manager initialized
[ 17.479635] Bluetooth: HCI socket layer initialized
[ 17.479644] Bluetooth: L2CAP socket layer initialized
[ 17.479661] Bluetooth: SCO socket layer initialized
[ 17.530765] Bluetooth: HCI UART driver ver 2.3
[ 17.530783] Bluetooth: HCI UART protocol H4 registered
[ 17.530846] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 17.531031] Bluetooth: HCI UART protocol Broadcom registered
[ 17.895669] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 17.895678] Bluetooth: BNEP filters: protocol multicast
[ 17.895697] Bluetooth: BNEP socket layer initialized
[ 17.949990] Bluetooth: RFCOMM TTY layer initialized
[ 17.950024] Bluetooth: RFCOMM socket layer initialized
[ 17.950044] Bluetooth: RFCOMM ver 1.11
[ 19.751254] ICMPv6: process `dhcpcd' is using deprecated sysctl (syscall) net.ipv6.neigh.wlan0.retrans_time - use net.ipv6.neigh.wlan0.retrans_time_ms instead
Hi Nathan,
It appears we would need the .config built from the defconfig from the kernel build instead of the config.txt because it has nothing for the TCAN device. If you can provide that, we can review it.
Regards,
Jonathan
Hi Nathan,
Also, make sure you have this in your defconfig when you build. This will tell the compiler to compile the driver. Our developer was not seeing any messages associated with either.
CONFIG_CAN_M_CAN=y
CONFIG_CAN_M_CAN_TCAN4X5X=y
Or if you want them as modules:
CONFIG_CAN_M_CAN=m
CONFIG_CAN_M_CAN_TCAN4X5X=m
Regards,
Jonathan
This is the .config file from building the kernel. I added those lines that you gave me but I still cannot seem to find any reference to where m_can or the tcan4x5x driver are being started by the system.
Hi Nathan,
The only thing our developer can think of is that maybe you did not copy the modules to the device and you could try to use them built-in as opposed to modules. He suggested to try the following:
CONFIG_CAN_M_CAN=y
CONFIG_CAN_M_CAN_TCAN4X5X=y
Regards
Jonathan