Hi:
I download the linux-rt-4.18.38 kenrel src from IT and switch on can0 device node in dts.
when I enable can0 of am4376 board and do like following:
#ip link set can0 type can bitrate 250000
#ip link set can0 up
net can0: c_can_hw_raminit_wait_syscon:time out
c_can_platform 481d000.can can0：setting BTR=1c5 BRPE=0000
It sometime tells "time out", but if I do "ip link set can0 up" again, and it will tell nothing.
and what's wrong with it?
Thanks!
Hi, thanks for your reply.
1: The board is made by myself ,but it's mostly the similar with TI evm board.
2: The boot log is in attchment.
3: It always tells "time out" no matter whether connect a can slave device or not.
4: It's strange that the can driver works well although it tells "time out" when I up it. The warning message "time out" seems to have no effection .
I test it using a can socket with can slave device, It works ok and it sends and receives data packages correctly.
SD/MMC found on device 0
3658240 bytes read in 185 ms (18.9 MiB/s)
44278 bytes read in 3 ms (14.1 MiB/s)
## Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Device Tree to 8fff2000, end 8ffffcf5 ... OK
## Transferring control to Linux (at address 82000000)...
>>>Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.19.381-rt19-g1224cd679e (root@ubuntu) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel- 8.36))) #87 PREEMPT RT Sat Feb 29 17:57:52 PST 2020
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: TI AM437x Industrial Development Kit
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 48 MiB at 0x9d000000
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM437x ES1.2 (neon)
[ 0.000000] random: get_random_bytes called from start_kernel+0xa4/0x43c with crng_init=0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129920
[ 0.000000] Kernel command line: console=ttyO0,115200n8 video=HDMI-A-1:800x600 root=PARTUUID=3b4f13de-02 rw rootfstype=ext4 rootwait
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 457992K/524288K available (7168K kernel code, 297K rwdata, 2300K rodata, 1024K init, 248K bss, 17144K reserved, 49152K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (8160 kB)
[ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
[ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 298 kB)
[ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 249 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU priority boosting: priority 1 delay 500 ms.
[ 0.000000] No expedited grace period (rcu_normal_after_boot).
[ 0.000000] Tasks RCU enabled.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000013] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000024] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000029] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000414] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000419] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000768] Console: colour dummy device 80x30
[ 0.000893] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.000896] This ensures that you still see kernel messages. Please
[ 0.000898] update your kernel commandline.
[ 0.000925] Calibrating delay loop... 1987.37 BogoMIPS (lpj=9936896)
[ 0.060176] pid_max: default: 32768 minimum: 301
[ 0.060345] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.060357] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.061271] CPU: Testing write buffer coherency: ok
[ 0.061335] CPU0: Spectre v2: using BPIALL workaround
[ 0.062347] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.062631] rcu: Hierarchical SRCU implementation.
[ 0.063354] EFI services will not be available.
[ 0.064225] devtmpfs: initialized
[ 0.073687] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.074130] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.074155] futex hash table entries: 256 (order: 1, 8192 bytes)
[ 0.077546] pinctrl core: initialized pinctrl subsystem
[ 0.078294] DMI not present or invalid.
[ 0.078840] NET: Registered protocol family 16
[ 0.080758] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.153536] omap_l3_noc 44000000.ocp: L3 debug error: target 8 mod:0 (unclearable)
[ 0.153779] omap_l3_noc 44000000.ocp: L3 application error: target 8 mod:0 (unclearable)
[ 0.159275] OMAP GPIO hardware version 0.1
[ 0.171607] No ATAGs?
[ 0.171634] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.171649] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.186376] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.187378] V3_3D: supplied by V24_0D
[ 0.187694] VDD_COREREG: supplied by V24_0D
[ 0.188067] VDD_CORE: supplied by VDD_COREREG
[ 0.188344] V1_8DREG: supplied by V24_0D
[ 0.188678] V1_8D: supplied by V1_8DREG
[ 0.188957] V1_5DREG: supplied by V24_0D
[ 0.189283] V1_5D: supplied by V1_5DREG
[ 0.192406] pps_core: LinuxPPS API ver. 1 registered
[ 0.192421] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.192462] PTP clock support registered
[ 0.192501] EDAC MC: Ver: 3.0.0
[ 0.193370] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.194805] clocksource: Switched to clocksource timer1
[ 0.198834] NET: Registered protocol family 2
[ 0.199720] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 7168 bytes)
[ 0.199775] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.199828] TCP bind hash table entries: 4096 (order: 4, 98304 bytes)
[ 0.200110] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.200531] UDP hash table entries: 256 (order: 2, 16384 bytes)
[ 0.200611] UDP-Lite hash table entries: 256 (order: 2, 16384 bytes)
[ 0.200922] NET: Registered protocol family 1
[ 0.201610] RPC: Registered named UNIX socket transport module.
[ 0.201627] RPC: Registered udp transport module.
[ 0.201633] RPC: Registered tcp transport module.
[ 0.201639] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.203401] Initialise system trusted keyrings
[ 0.203735] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[ 0.209774] NFS: Registering the id_resolver key type
[ 0.209819] Key type id_resolver registered
[ 0.209826] Key type id_legacy registered
[ 0.212156] Key type asymmetric registered
[ 0.212174] Asymmetric key parser 'x509' registered
[ 0.212267] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 0.212281] io scheduler noop registered
[ 0.212288] io scheduler deadline registered
[ 0.212539] io scheduler cfq registered (default)
[ 0.212550] io scheduler mq-deadline registered
[ 0.212557] io scheduler kyber registered
[ 0.214989] pinctrl-single 44e10800.pinmux: 199 pins, size 796
[ 0.228788] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[ 0.231839] omap8250 44e09000.serial: No clock speed specified: using default: 48000000
[ 0.232164] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 31, base_baud = 3000000) is a 8250
[ 0.921725] console [ttyS0] enabled
[ 0.925909] omap8250 481a8000.serial: No clock speed specified: using default: 48000000
[ 0.934303] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 32, base_baud = 3000000) is a 8250
[ 0.945458] omap_rng 48310000.rng: Random Number Generator ver. 20
[ 0.967465] brd: module loaded
[ 0.981444] loop: module loaded
[ 0.988396] m25p80 spi0.0: n25q032 (4096 Kbytes)
[ 0.993074] 1 fixed-partitions partitions found on MTD device spi0.0
[ 0.999498] Creating 1 MTD partitions on "spi0.0":
[ 1.004320] 0x000000000000-0x000000100000 : "MLO"
[ 1.011231] libphy: Fixed MDIO Bus: probed
[ 1.016384] CAN device driver interface
[ 1.021327] c_can_platform 481d0000.can: c_can_platform device registered (regs=(ptrval), irq=56)
[ 1.104862] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 1.112566] davinci_mdio 4a101000.mdio: detected phy mask fffffffc
[ 1.120847] libphy: 4a101000.mdio: probed
[ 1.124937] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver NS DP83848C 10/100 Mbps PHY
[ 1.134724] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver NS DP83848C 10/100 Mbps PHY
[ 1.145540] cpsw 4a100000.ethernet: Missing dual_emac_res_vlan in DT.
[ 1.152022] cpsw 4a100000.ethernet: Using 1 as Reserved VLAN for 0 slave
[ 1.158827] cpsw 4a100000.ethernet: Missing dual_emac_res_vlan in DT.
[ 1.165303] cpsw 4a100000.ethernet: Using 2 as Reserved VLAN for 1 slave
[ 1.172037] cpsw 4a100000.ethernet: Detected MACID = 04:79:b7:d5:78:07
[ 1.178693] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[ 1.185082] cpsw 4a100000.ethernet: ALE Table size 1024
[ 1.190366] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
[ 1.198391] cpsw 4a100000.ethernet: cpsw: Detected MACID = 04:79:b7:d5:78:09
[ 1.207308] i2c /dev entries driver
[ 1.212165] sdhci: Secure Digital Host Controller Interface driver
[ 1.218376] sdhci: Copyright(c) Pierre Ossman
[ 1.223551] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[ 1.232319] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 1.237585] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.2
[ 1.271409] omap_hsmmc 481d8000.mmc: Linked as a consumer to regulator.2
[ 1.304080] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.311758] remoteproc remoteproc0: 54434000.pru is available
[ 1.317624] pru-rproc 54434000.pru: PRU rproc node pru@54434000 probed successfully
[ 1.325619] remoteproc remoteproc1: 54438000.pru is available
[ 1.329799] mmc0: host does not support reading read-only switch, assuming write-enable
[ 1.332560] mmc0: new high speed SDHC card at address aaaa
[ 1.335730] mmcblk0: mmc0:aaaa SL16G 14.8 GiB
[ 1.349459] mmcblk0: p1 p2
[ 1.356064] pru-rproc 54438000.pru: PRU rproc node pru@54438000 probed successfully
[ 1.364153] remoteproc remoteproc2: 54474000.pru is available
[ 1.370007] pru-rproc 54474000.pru: PRU rproc node pru@54474000 probed successfully
[ 1.372840] mmc1: new high speed MMC card at address 0001
[ 1.383842] remoteproc remoteproc3: 54478000.pru is available
[ 1.385808] mmcblk1: mmc1:0001 004GA0 3.69 GiB
[ 1.386614] mmcblk1boot0: mmc1:0001 004GA0 partition 1 2.00 MiB
[ 1.387426] mmcblk1boot1: mmc1:0001 004GA0 partition 2 2.00 MiB
[ 1.387722] mmcblk1rpmb: mmc1:0001 004GA0 partition 3 512 KiB, chardev (245:0)
[ 1.394965] mmcblk1: p1 p2
[ 1.422708] pru-rproc 54478000.pru: PRU rproc node pru@54478000 probed successfully
[ 1.433204] NET: Registered protocol family 10
[ 1.439282] Segment Routing with IPv6
[ 1.443057] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.449769] NET: Registered protocol family 17
[ 1.454259] can: controller area network core (rev 20170425 abi 9)
[ 1.460702] NET: Registered protocol family 29
[ 1.465210] can: raw protocol (rev 20170425)
[ 1.469502] can: broadcast manager protocol (rev 20170425 t)
[ 1.475196] can: netlink gateway (rev 20170425) max_hops=1
[ 1.480951] Key type dns_resolver registered
[ 1.485462] omap_voltage_late_init: Voltage driver support not added
[ 1.492750] Loading compiled-in X.509 certificates
[ 1.536655] rtc-rx8010 1-0032: Frequency stop was detected
[ 1.542978] rtc-rx8010 1-0032: Frequency stop detected
[ 1.548425] rtc-rx8010 1-0032: rtc core: registered rx8010 as rtc0
[ 1.554739] omap_i2c 4802a000.i2c: bus 1 rev0.12 at 100 kHz
[ 1.561194] rtc-rx8010 1-0032: Frequency stop detected
[ 1.566380] rtc-rx8010 1-0032: hctosys: unable to read the hardware clock
[ 1.574070] set led <7> !!!!
[ 1.577972] init spi2
[ 1.580257] init spi2-d0 8040007
[ 1.583495] init spi2-cs0 8060007
[ 1.586823] init spi2-sclk 8040007
[ 1.590236] init spi2-d1 8040007
[ 1.652313] random: fast init done
[ 2.230882] EXT4-fs (mmcblk0p2): recovery complete
[ 2.242232] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 2.250435] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 2.268460] devtmpfs: mounted
[ 2.273367] Freeing unused kernel memory: 1024K
[ 2.278047] Run /sbin/init as init process
[ 2.592916] systemd[1]: System time before build time, advancing clock.
[ 2.628292] systemd[1]: systemd 239 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)
[ 2.650314] systemd[1]: Detected architecture arm.
Welcome to Arago 2019.05!
[ 2.698749] systemd[1]: Set hostname to <dc-plc>.
[ 3.025672] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does no t support BPF/cgroup based firewalling.
[ 3.042885] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[ 3.383954] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.390783] systemd[1]: Reached target Remote File Systems.
[ OK ] Reached target Remote File Systems.
[ 3.445110] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.452833] systemd[1]: Listening on Journal Socket.
[ OK ] Listening on Journal Socket.
[ 3.485778] random: systemd: uninitialized urandom read (16 bytes read)
[ 3.500313] systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
[ OK ] Started Hardware RNG Entropy Gatherer Daemon.
[ 3.529464] random: crng init done
[ 3.545406] systemd[1]: Reached target Swap.
[ OK ] Reached target Swap.
[ 3.591430] systemd[1]: Mounting Temporary Directory (/tmp)...
Mounting Temporary Directory (/tmp)...
[ OK ] Listening on udev Control Socket.
[ OK ] Listening on Network Service Netlink Socket.
[ OK ] Listening on initctl Compatibility Named Pipe.
Mounting POSIX Message Queue File System...
[ OK ] Started Dispatch Password Requests to Console Directory Watch.
[ OK ] Created slice User and Session Slice.
[ OK ] Listening on Process Core Dump Socket.
[ OK ] Listening on Journal Socket (/dev/log).
[ OK ] Created slice system-getty.slice.
Starting Apply Kernel Variables...
Mounting Kernel Configuration File System...
[ OK ] Listening on udev Kernel Socket.
Starting udev Coldplug all Devices...
[ OK ] Reached target Slices.
[ OK ] Created slice system-serial\x2dgetty.slice.
[ OK ] Started Forward Password Requests to Wall Directory Watch.
[ OK ] Reached target Paths.
Starting Journal Service...
Starting Remount Root and Kernel File Systems...
Mounting Kernel Debug File System...
[ OK ] Mounted Temporary Directory (/tmp).
[ 4.344293] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ OK ] Mounted POSIX Message Queue File System.
[ OK ] Started Apply Kernel Variables.
[ OK ] Started Journal Service.
[ OK ] Mounted Kernel Configuration File System.
[ OK ] Started Remount Root and Kernel File Systems.
[ OK ] Mounted Kernel Debug File System.
Starting Create Static Device Nodes in /dev...
Starting Flush Journal to Persistent Storage...
[ 4.794293] systemd-journald[97]: Received request to flush runtime journal from PID 1
[ OK ] Started Create Static Device Nodes in /dev.
[ OK ] Started Flush Journal to Persistent Storage.
[ OK ] Reached target Local File Systems (Pre).
Mounting /media/ram...
[ OK ] Reached target Containers.
Mounting /var/volatile...
Starting udev Kernel Device Manager...
[ OK ] Started udev Coldplug all Devices.
[ OK ] Mounted /media/ram.
[ OK ] Mounted /var/volatile.
[ OK ] Started udev Kernel Device Manager.
Starting Load/Save Random Seed...
[ OK ] Reached target Local File Systems.
Starting Create Volatile Files and Directories...
[ OK ] Started Load/Save Random Seed.
[ OK ] Started Create Volatile Files and Directories.
Starting Update UTMP about System Boot/Shutdown...
Starting Network Time Synchronization...
Starting Network Service...
[ OK ] Started Update UTMP about System Boot/Shutdown.
[ OK ] Started Network Service.
Starting Network Name Resolution...
[ OK ] Found device /dev/ttyS0.
[ OK ] Started Network Time Synchronization.
[ OK ] Reached target System Time Synchronized.
[ OK ] Reached target System Initialization.
[ OK ] Listening on RPCbind Server Activation Socket.
[ OK ] Listening on D-Bus System Message Bus Socket.
[ OK ] Reached target Sockets.
[ OK ] Reached target Basic System.
[ OK ] Started Job spooling tools.
[ OK ] Started Periodic Command Scheduler.
Starting RPC Bind Service...
Starting Print notice about GPLv3 packages...
Starting rng-tools.service...
Starting Login Service...
[ OK ] Started Daily Cleanup of Temporary Directories.
[ OK ] Started Daily rotation of log files.
[ OK ] Reached target Timers.
grep: /var/lib/opkg/info/*.control: No such file or directory
[ OK ] Started D-Bus System Message Bus.
[ OK ] Started RPC Bind Service.
[ OK ] Started Print notice about GPLv3 packages.
[ OK ] Started rng-tools.service.
[ OK ] Started Network Name Resolution.
[ 10.095092] net eth1: initializing cpsw version 1.15 (0)
[ 10.255841] NS DP83848C 10/100 Mbps PHY 4a101000.mdio:01: attached PHY driver [NS DP83848C 10/100 Mbps PHY] (mii_bus:phy_addr=4a101000.mdio:01, irq=POLL )
[ 10.408711] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 10.755214] net eth0: initializing cpsw version 1.15 (0)
[ 10.948248] NS DP83848C 10/100 Mbps PHY 4a101000.mdio:00: attached PHY driver [NS DP83848C 10/100 Mbps PHY] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL )
[ 11.150584] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ OK ] Created slice system-systemd\x2dfsck.slice.
Starting File System Check on /dev/mmcblk0p1...
Starting File System Check on /dev/mmcblk1p2...
Starting File System Check on /dev/mmcblk1p1...
[ OK ] Reached target Host and Network Name Lookups.
[ OK ] Reached target Network.
Starting Permit User Sessions...
Starting telnetd.service...
[ OK ] Started NFS status monitor for NFSv2/3 locking..
[ OK ] Started Permit User Sessions.
[ OK ] Started Serial Getty on ttyS0.
[ OK ] Started Getty on tty1.
[ OK ] Reached target Login Prompts.
Starting Synchronize System and HW clocks...
[ OK ] Started File System Check on /dev/mmcblk0p1.
[ OK ] Started telnetd.service.
[ OK ] Started File System Check on /dev/mmcblk1p1.
[ OK ] Started Synchronize System and HW clocks.
[ OK ] Started File System Check on /dev/mmcblk1p2.
Mounting /run/media/mmcblk1p2...
Mounting /run/media/mmcblk1p1...
Starting thttpd.service...
Mounting /run/media/mmcblk0p1...
[ 17.414131] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
[ OK ] Mounted /run/media/mmcblk1p2.
[ OK ] Mounted /run/media/mmcblk1p1.
[ OK ] Started thttpd.service.
[ OK ] Mounted /run/media/mmcblk0p1.
Starting thermal-zone-init.service...
[ OK ] Started Login Service.
[ OK ] Started thermal-zone-init.service.
[ OK ] Reached target Multi-User System.
Starting Update UTMP about System Runlevel Changes...
[ OK ] Started Update UTMP about System Runlevel Changes.
_____ _____ _ _
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_|
|___| |___|
Arago Project http://arago-project.org dc-plc ttyS0
Arago 2019.05 dc-plc ttyS0
dc-plc login: root (automatic login)
root@dc-plc:~# ip -d -s link show can0
2: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN mode DEFAULT group default qlen 10
link/can promiscuity 0 minmtu 0 maxmtu 0
can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0
c_can: tseg1 2..16 tseg2 1..8 sjw 1..4 brp 1..1024 brp-inc 1
clock 24000000
re-started bus-errors arbit-lost error-warn error-pass bus-off
0 0 0 0 0 0 numtxqueues 1 gso_max_size 65536 gso_max_segs 65535
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
root@dc-plc:~# ip link set can0 type can bitrate 50000
root@dc-plc:~# ip link set can0 up
[ 301.674477] net can0: c_can_hw_raminit_wait_syscon: time out
[ 301.680503] c_can_platform 481d0000.can can0: setting BTR=1c1d BRPE=0000
root@dc-plc:~# ip link set can0 up
root@dc-plc:~# ip -d -s link show can0
2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN 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 50000 sample-point 0.875
tq 1250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
c_can: tseg1 2..16 tseg2 1..8 sjw 1..4 brp 1..1024 brp-inc 1
clock 24000000
re-started bus-errors arbit-lost error-warn error-pass bus-off
0 0 0 0 0 0 numtxqueues 1 gso_max_size 65536 gso_max_segs 65535
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
root@dc-plc:~# ip link set can0 down
root@dc-plc:~# ip link set can0 up
[ 539.694470] net can0: c_can_hw_raminit_wait_syscon: time out
[ 539.700492] c_can_platform 481d0000.can can0: setting BTR=1c1d BRPE=0000
root@dc-plc:~#