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Issue with Bluetooth-WiFi coex on Wilink8

Sharafuddeen Nalakath
Prodigy 100 points
Other Parts Discussed in Thread: WL1837

Hi,

We use Wilink8 module (WL1837) for WiFi and BT connectivity on a device that uses i.MX6 Solo processor from Freescale.  We use Bluetopia as the BT stack. The BT firmware used is TIInit_11.8.32.bts.  The OS is Ubuntu 12.04.2 LTS and Linux kernel version is 3.10.17.  

We observe an issue with BT-WiFi coexistence.  The use cases are listed below:

  • Simultaneous data transfer via WiFi and BT
  • Connect and disconnect BT while data transfer via WiFi is in progress
  • Connect and disconnect WiFi when BT is connected
  • Up and down WiFi interface when BT is connected

In all these cases, WiFi is in client mode, and SPP is used for data transfer over BT.

After executing these steps,  BT and WiFi work fine; however, after rebooting the device, BT stops working.  This is indicated by "hciconfig" not showing any BT interfaces.  After a couple of days, WiFi also stops working.  This is indicated by wlan0 interface not listed upon executing "ifconfig -a".

BT and WiFi never work again in the device, even after reflashing it.  

Has anyone observed this issue?

Thanks,

Sharafuddeen Nalakath

  • 0
    TI__Mastermind 32615 points
    Hi,

    NO, we have not see this issue previously, anyway I will check it internally and conform it to you.

    In mean while you can check if every thing is fine from the host side (like BT_EN (nSHUTDOWN) is toggling properly)
  • 0 in reply to Sundeep Javvaji
    Prodigy 100 points
    Thanks Sundeep for your quick reply.

    I have verified that everything is fine from the host side.

    Awaiting your feedback,
    Sharafuddeen Nalakath
  • 0 in reply to Sharafuddeen Nalakath
    TI__Mastermind 32615 points
    Hi,

    See the response i have received internally:

    It is probably not a TI’s device issue, but rather Stack/OS. But to confirm this, we would need FW logs (WLAN + BT).
    You have mentioned that : “BT and WiFi never work again in the device, even after reflashing it." , this pretty much says it’s not a controller issue, as after power off/on, everything should go back to normal.
  • 0 in reply to Sundeep Javvaji
    Prodigy 100 points

    Hi Sundeep,

    Please find below the dmesg logs upon bootup of the device in which BT and WiFi were working previously but not working since testing Coex:

    Booting Linux on physical CPU 0x0
    Linux version 3.10.17 (root@ubuntu) (gcc version 4.8.2 20130603 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2013.06 - Linaro GCC 2013.06) ) #1 SMP Thu Jan 29 01:43:04 IST 2015
    CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
    CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
    Machine: Freescale i.MX6 Quad/DualLite (Device Tree), model: Freescale i.MX6 DualLite SABRE Smart Device Board
    Truncating RAM at 10000000-8fffffff to -7f7fffff (vmalloc region overlap).
    cma: CMA: reserved 256 MiB at 6e000000
    Memory policy: ECC disabled, Data cache writealloc
    On node 0 totalpages: 456704
    free_area_init_node: node 0, pgdat 80c51f40, node_mem_map 80ccb000
    DMA zone: 3568 pages used for memmap
    DMA zone: 0 pages reserved
    DMA zone: 456704 pages, LIFO batch:31
    PERCPU: Embedded 8 pages/cpu @81ae7000 s8576 r8192 d16000 u32768
    pcpu-alloc: s8576 r8192 d16000 u32768 alloc=8*4096
    pcpu-alloc: [0] 0
    Built 1 zonelists in Zone order, mobility grouping on. Total pages: 453136
    Kernel command line: console=ttymxc4,115200 nosmp root=/dev/mmcblk2p3 rootwait rw
    PID hash table entries: 4096 (order: 2, 16384 bytes)
    Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
    Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
    Memory: 1784MB = 1784MB total
    Memory: 1534944k/1534944k available, 291872k reserved, 0K highmem
    Virtual kernel memory layout:
    vector : 0xffff0000 - 0xffff1000 ( 4 kB)
    fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
    vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
    lowmem : 0x80000000 - 0xef800000 (1784 MB)
    modules : 0x7f000000 - 0x80000000 ( 16 MB)
    .text : 0x80008000 - 0x80bb8d60 (11972 kB)
    .init : 0x80bb9000 - 0x80c07180 ( 313 kB)
    .data : 0x80c08000 - 0x80c67ab0 ( 383 kB)
    .bss : 0x80c67ab0 - 0x80cca1c0 ( 394 kB)
    SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
    Hierarchical RCU implementation.
    RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
    NR_IRQS:16 nr_irqs:16 16
    L310 cache controller enabled
    l2x0: 16 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x32050000, Cache size: 524288 B
    sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655ms
    CPU identified as i.MX6DL, silicon rev 1.2
    Console: colour dummy device 80x30
    Calibrating delay loop... 1581.05 BogoMIPS (lpj=7905280)
    pid_max: default: 32768 minimum: 301
    Security Framework initialized
    Mount-cache hash table entries: 512
    CPU: Testing write buffer coherency: ok
    CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
    Setting up static identity map for 0x805ea488 - 0x805ea4e0
    Brought up 1 CPUs
    SMP: Total of 1 processors activated (1581.05 BogoMIPS).
    CPU: All CPU(s) started in SVC mode.
    devtmpfs: initialized
    pinctrl core: initialized pinctrl subsystem
    regulator-dummy: no parameters
    NET: Registered protocol family 16
    DMA: preallocated 256 KiB pool for atomic coherent allocations
    Use WDOG2 as reset source
    syscon 20c8000.anatop: regmap [mem 0x020c8000-0x020c8fff] registered
    vdd1p1: 800 <--> 1375 mV at 1125 mV
    vdd3p0: 2800 <--> 3150 mV at 3000 mV
    vdd2p5: 2000 <--> 2750 mV at 2425 mV
    cpu: 725 <--> 1450 mV at 1150 mV
    vddpu: 725 <--> 1450 mV
    vddsoc: 725 <--> 1450 mV at 1200 mV
    syscon 20e0000.iomuxc-gpr: regmap [mem 0x020e0000-0x020e0037] registered
    syscon 21bc000.ocotp-ctrl: regmap [mem 0x021bc000-0x021bffff] registered
    wlan_irq = 324
    HBOX-DEBUG:: KIM platform device Registered
    hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
    hw-breakpoint: maximum watchpoint size is 4 bytes.
    imx6dl-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
    bio: create slab <bio-0> at 0
    mxs-dma 110000.dma-apbh: initialized
    usb_otg_vbus: 5000 mV
    usb_h1_vbus: 5000 mV
    sensor-supply: 3300 mV
    wl18xx_supply: 1800 mV
    i2c-core: driver [max17135] using legacy suspend method
    i2c-core: driver [max17135] using legacy resume method
    SCSI subsystem initialized
    libata version 3.00 loaded.
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    i2c i2c-0: IMX I2C adapter registered
    Linux video capture interface: v2.00
    pps_core: LinuxPPS API ver. 1 registered
    pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
    PTP clock support registered
    imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
    MIPI CSI2 driver module loaded
    Advanced Linux Sound Architecture Driver Initialized.
    Bluetooth: Core ver 2.16
    NET: Registered protocol family 31
    Bluetooth: HCI device and connection manager initialized
    Bluetooth: HCI socket layer initialized
    Bluetooth: L2CAP socket layer initialized
    Bluetooth: SCO socket layer initialized
    nfc: nfc_init: NFC Core ver 0.1
    NET: Registered protocol family 39
    Switching to clocksource mxc_timer1
    NET: Registered protocol family 2
    TCP established hash table entries: 16384 (order: 5, 131072 bytes)
    TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
    TCP: Hash tables configured (established 16384 bind 16384)
    TCP: reno registered
    UDP hash table entries: 1024 (order: 3, 32768 bytes)
    UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
    NET: Registered protocol family 1
    RPC: Registered named UNIX socket transport module.
    RPC: Registered udp transport module.
    RPC: Registered tcp transport module.
    RPC: Registered tcp NFSv4.1 backchannel transport module.
    hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
    pureg-dummy: no parameters
    Bus freq driver module loaded
    VFS: Disk quotas dquot_6.5.2
    Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
    NFS: Registering the id_resolver key type
    Key type id_resolver registered
    Key type id_legacy registered
    jffs2: version 2.2. (NAND) \xffffffc2\xffffffa9 2001-2006 Red Hat, Inc.
    fuse init (API version 7.22)
    msgmni has been set to 3509
    io scheduler noop registered
    io scheduler deadline registered
    io scheduler cfq registered (default)
    imx-weim 21b8000.weim: WEIM driver registered.
    MIPI DSI driver module loaded
    mxc_sdc_fb fb.24: register mxc display driver ldb
    mxc_sdc_fb fb.24: NO mxc display driver found!
    mxc_sdc_fb fb.25: register mxc display driver hdmi
    mxc_sdc_fb fb.25: NO mxc display driver found!
    imx-sdma 20ec000.sdma: no iram assigned, using external mem
    imx-sdma 20ec000.sdma: initialized
    imx-sdma 20ec000.sdma: loaded firmware 1.1
    pfuze100-regulator 0-0008: Full lay: 1, Metal lay: 1
    pfuze100-regulator 0-0008: FAB: 0, FIN: 1
    SW1AB: 300 <--> 1875 mV at 1375 mV
    SW1C: 300 <--> 1875 mV at 1375 mV
    SW2: 800 <--> 3300 mV at 3300 mV
    SW3A: 400 <--> 1975 mV at 1500 mV
    SW3B: 400 <--> 1975 mV at 1500 mV
    SW4: 800 <--> 3300 mV at 3150 mV
    SWBST: 5000 <--> 5150 mV at 5000 mV
    VSNVS: 1000 <--> 3000 mV at 3000 mV
    VREFDDR: 750 mV
    VGEN1: 800 <--> 1550 mV at 1500 mV
    VGEN2: 800 <--> 1550 mV at 1500 mV
    VGEN3: 1800 <--> 3300 mV at 2800 mV
    VGEN4: 1800 <--> 3300 mV at 1800 mV
    VGEN5: 1800 <--> 3300 mV at 3000 mV
    VGEN6: 1800 <--> 3300 mV at 3300 mV
    Serial: IMX driver
    2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX
    21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 59) is a IMX
    21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX
    21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 62) is a IMX
    console [ttymxc4] enabled
    serial: Freescale lpuart driver
    [drm] Initialized drm 1.1.0 20060810
    [drm] Initialized vivante 1.0.0 20120216 on minor 0
    brd: module loaded
    loop: module loaded
    cr95hf nfc device registered ..
    spi_imx 2008000.ecspi: probed
    at25 spi3.0: 32 KByte at25 eeprom, pagesize 64 ee_csn 121
    spi_imx 2010000.ecspi: probed
    spi_imx 2014000.ecspi: probed
    libphy: fec_enet_mii_bus: probed
    fec 2188000.ethernet eth0: registered PHC device 0
    ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    usbcore: registered new interface driver usbserial
    usbcore: registered new interface driver ftdi_sio
    usbserial: USB Serial support registered for FTDI USB Serial Device
    mousedev: PS/2 mouse device common for all mice
    i2c-core: driver [isl29023] using legacy suspend method
    i2c-core: driver [isl29023] using legacy resume method
    snvs_rtc 20cc034.snvs-rtc-lp: rtc core: registered 20cc034.snvs-rtc-lp as rtc0
    i2c /dev entries driver
    i2c-core: driver [mag3110] using legacy suspend method
    i2c-core: driver [mag3110] using legacy resume method
    imx2-wdt 20bc000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=1)
    cpuidle: using governor ladder
    cpuidle: using governor menu
    sdhci: Secure Digital Host Controller Interface driver
    sdhci: Copyright(c) Pierre Ossman
    sdhci-pltfm: SDHCI platform and OF driver helper
    mmc0: no vqmmc regulator found
    mmc0: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
    mmc1: no vqmmc regulator found
    mmc1: no vmmc regulator found
    mmc1: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
    mmc2: no vqmmc regulator found
    mmc2: no vmmc regulator found
    mmc2: SDHCI controller on 219c000.usdhc [219c000.usdhc] using ADMA
    mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
    mxc_asrc 2034000.asrc: mxc_asrc registered
    mxc_vpu 2040000.vpu: VPU initialized
    leds-gpio gpio-leds.22: pins are not configured from the driver
    ledtrig-cpu: registered to indicate activity on CPUs
    caam 2100000.caam: device ID = 0x0a16010000000100 (Era -524)
    caam 2100000.caam: job rings = 2, qi = 0
    caam 2100000.caam: authenc-hmac-md5-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-md5-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-md5-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-des-caam
    caam 2100000.caam: ecb-des-caam
    caam 2100000.caam: ecb-arc4-caam
    caam 2100000.caam: ecb-aes-caam
    caam 2100000.caam: ctr-aes-caam
    caam 2100000.caam: cbc-aes-caam
    caam 2100000.caam: ecb-des3-caam
    caam 2100000.caam: cbc-3des-caam
    caam 2100000.caam: cbc-des-caam
    caam 2100000.caam: fsl,sec-v4.0 algorithms registered in /proc/crypto
    platform 2101000.jr0: registering rng-caam
    platform caam_sm: caam_sm_test: 8-byte key test match OK
    platform caam_sm: caam_sm_test: 16-byte key test match OK
    platform caam_sm: caam_sm_test: 32-byte key test match OK
    platform caam_secvio.29: security violation service handlers armed
    usbcore: registered new interface driver usbhid
    usbhid: USB HID core driver
    i2c-core: driver [cs42888] using legacy suspend method
    i2c-core: driver [cs42888] using legacy resume method
    TCP: cubic registered
    NET: Registered protocol family 10
    sit: IPv6 over IPv4 tunneling driver
    NET: Registered protocol family 17
    Bluetooth: RFCOMM TTY layer initialized
    Bluetooth: RFCOMM socket layer initialized
    Bluetooth: RFCOMM ver 1.11
    Bluetooth: HIDP (Human Interface Emulation) ver 1.2
    Bluetooth: HIDP socket layer initialized
    Key type dns_resolver registered
    VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
    VGEN3: disabling
    VGEN2: disabling
    VGEN1: disabling
    input: gpio-keys.21 as /devices/soc0/gpio-keys.21/input/input0
    snvs_rtc 20cc034.snvs-rtc-lp: setting system clock to 2015-02-04 10:55:19 UTC (1423047319)
    ALSA device list:
    No soundcards found.
    kjournald starting. Commit interval 5 seconds
    EXT3-fs (mmcblk2p3): using internal journal
    EXT3-fs (mmcblk2p3): mounted filesystem with ordered data mode
    VFS: Mounted root (ext3 filesystem) on device 179:3.
    devtmpfs: mounted
    Freeing unused kernel memory: 312K (80bb9000 - 80c07000)
    init: mounted-proc main process (123) terminated with status 1
    udevd[230]: starting version 175
    (stk) :sysfs entries created
    (stk) : debugfs entries created
    hdev dc37a000
    HCI device registered (hdev dc37a000)
    hci0 dc37a000
    (stc): chnl_id list empty :4
    (stk) : st_kim_startinit: cups pre-start process (249) terminated with status 1
    (stk) :ldisc_install = 1
    (stk) :ldisc installation timeout<6>rl_audio module initialization in progress
    imx_usb 2184000.usb: pinctrl_hsic_idle lookup failed, err=-19
    imx_usb 2184000.usb: pinctrl_hsic_active lookup failed, err=-19
    ci_hdrc ci_hdrc.0: ChipIdea HDRC found, lpm: 0; cap: f0176100 op: f0176140
    ci_hdrc ci_hdrc.0: It is OTG capable controller
    ci_hdrc ci_hdrc.0: doesn't support gadget
    ci_hdrc ci_hdrc.0: EHCI Host Controller
    ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
    ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
    usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
    usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    usb usb1: Product: EHCI Host Controller
    usb usb1: Manufacturer: Linux 3.10.17 ehci_hcd
    usb usb1: SerialNumber: ci_hdrc.0
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 1 port detected
    imx_usb 2184200.usb: pinctrl_hsic_idle lookup failed, err=-19
    imx_usb 2184200.usb: pinctrl_hsic_active lookup failed, err=-19
    ci_hdrc ci_hdrc.1: ChipIdea HDRC found, lpm: 0; cap: f017e300 op: f017e340
    ci_hdrc ci_hdrc.1: doesn't support gadget
    ci_hdrc ci_hdrc.1: EHCI Host Controller
    ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2
    ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
    usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
    usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    usb usb2: Product: EHCI Host Controller
    usb usb2: Manufacturer: Linux 3.10.17 ehci_hcd
    usb usb2: SerialNumber: ci_hdrc.1
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 1 port detected
    init: fix-perms main process (217) terminated with status 1
    usb 1-1: new high-speed USB device number 2 using ci_hdrc
    usb 1-1: New USB device found, idVendor=0424, idProduct=2412
    usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
    hub 1-1:1.0: USB hub found
    hub 1-1:1.0: 2 ports detected
    (stk) :ldisc_install = 0
    (stk) : timed out waiting for ldisc to be un-installed<6>usb 2-1: new full-speed USB device number 2 using ci_hdrc
    Adding 1048572k swap on /dev/mmcblk2p2. Priority:-1 extents:1 across:1048572k SS
    (stk) :ldisc_install = 1
    (stk) :ldisc installation timeoutinit: udev-fallback-graphics main process (540) terminated with status 1
    fec 2188000.ethernet eth0: Freescale FEC PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=2188000.ethernet:01, irq=-1)
    (stk) :ldisc_install = 0
    (stk) : timed out waiting for ldisc to be un-installed<6>IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    (stk) :ldisc_install = 1
    (stc): st_tty_open (stk) :line discipline installed
    (stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) :ldisc_install = 0
    (stc): st_tty_close (stk) :ldisc_install = 1
    (stc): st_tty_open (stk) :line discipline installed
    (stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) :ldisc_install = 0
    (stc): st_tty_close (stk) :ldisc_install = 1
    (stc): st_tty_open <6>libphy: 2188000.ethernet:01 - Link is Up - 100/Full
    IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
    (stk) :line discipline installed
    (stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) :ldisc_install = 0
    (stc): st_tty_close (stk) :ldisc_install = 1
    (stc): st_tty_open (stk) :line discipline installed
    (stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) :ldisc_install = 0
    (stc): st_tty_close <3>Bluetooth: st_register failed -22
    init: failsafe main process (519) killed by TERM signal

    The dmesg logs upon bootup of the device in which BT and WiFi are working fine:

    Booting Linux on physical CPU 0x0
    Linux version 3.10.17 (root@ubuntu) (gcc version 4.8.2 20130603 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2013.06 - Linaro GCC 2013.06) ) #1 SMP Thu Jan 29 01:43:04 IST 2015
    CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
    CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
    Machine: Freescale i.MX6 Quad/DualLite (Device Tree), model: Freescale i.MX6 DualLite SABRE Smart Device Board
    Truncating RAM at 10000000-8fffffff to -7f7fffff (vmalloc region overlap).
    cma: CMA: reserved 256 MiB at 6e000000
    Memory policy: ECC disabled, Data cache writealloc
    On node 0 totalpages: 456704
    free_area_init_node: node 0, pgdat 80c51f40, node_mem_map 80ccb000
    DMA zone: 3568 pages used for memmap
    DMA zone: 0 pages reserved
    DMA zone: 456704 pages, LIFO batch:31
    PERCPU: Embedded 8 pages/cpu @81ae7000 s8576 r8192 d16000 u32768
    pcpu-alloc: s8576 r8192 d16000 u32768 alloc=8*4096
    pcpu-alloc: [0] 0
    Built 1 zonelists in Zone order, mobility grouping on. Total pages: 453136
    Kernel command line: console=ttymxc4,115200 nosmp root=/dev/mmcblk2p3 rootwait rw
    PID hash table entries: 4096 (order: 2, 16384 bytes)
    Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
    Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
    Memory: 1784MB = 1784MB total
    Memory: 1534944k/1534944k available, 291872k reserved, 0K highmem
    Virtual kernel memory layout:
    vector : 0xffff0000 - 0xffff1000 ( 4 kB)
    fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
    vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
    lowmem : 0x80000000 - 0xef800000 (1784 MB)
    modules : 0x7f000000 - 0x80000000 ( 16 MB)
    .text : 0x80008000 - 0x80bb8d60 (11972 kB)
    .init : 0x80bb9000 - 0x80c07180 ( 313 kB)
    .data : 0x80c08000 - 0x80c67ab0 ( 383 kB)
    .bss : 0x80c67ab0 - 0x80cca1c0 ( 394 kB)
    SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
    Hierarchical RCU implementation.
    RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
    NR_IRQS:16 nr_irqs:16 16
    L310 cache controller enabled
    l2x0: 16 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x32050000, Cache size: 524288 B
    sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655ms
    CPU identified as i.MX6DL, silicon rev 1.2
    Console: colour dummy device 80x30
    Calibrating delay loop... 1581.05 BogoMIPS (lpj=7905280)
    pid_max: default: 32768 minimum: 301
    Security Framework initialized
    Mount-cache hash table entries: 512
    CPU: Testing write buffer coherency: ok
    CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
    Setting up static identity map for 0x805ea488 - 0x805ea4e0
    Brought up 1 CPUs
    SMP: Total of 1 processors activated (1581.05 BogoMIPS).
    CPU: All CPU(s) started in SVC mode.
    devtmpfs: initialized
    pinctrl core: initialized pinctrl subsystem
    regulator-dummy: no parameters
    NET: Registered protocol family 16
    DMA: preallocated 256 KiB pool for atomic coherent allocations
    Use WDOG2 as reset source
    syscon 20c8000.anatop: regmap [mem 0x020c8000-0x020c8fff] registered
    vdd1p1: 800 <--> 1375 mV at 1125 mV
    vdd3p0: 2800 <--> 3150 mV at 3000 mV
    vdd2p5: 2000 <--> 2750 mV at 2425 mV
    cpu: 725 <--> 1450 mV at 1150 mV
    vddpu: 725 <--> 1450 mV
    vddsoc: 725 <--> 1450 mV at 1200 mV
    syscon 20e0000.iomuxc-gpr: regmap [mem 0x020e0000-0x020e0037] registered
    syscon 21bc000.ocotp-ctrl: regmap [mem 0x021bc000-0x021bffff] registered
    wlan_irq = 324
    HBOX-DEBUG:: KIM platform device Registered
    hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
    hw-breakpoint: maximum watchpoint size is 4 bytes.
    imx6dl-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
    bio: create slab <bio-0> at 0
    mxs-dma 110000.dma-apbh: initialized
    usb_otg_vbus: 5000 mV
    usb_h1_vbus: 5000 mV
    sensor-supply: 3300 mV
    wl18xx_supply: 1800 mV
    i2c-core: driver [max17135] using legacy suspend method
    i2c-core: driver [max17135] using legacy resume method
    SCSI subsystem initialized
    libata version 3.00 loaded.
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    i2c i2c-0: IMX I2C adapter registered
    Linux video capture interface: v2.00
    pps_core: LinuxPPS API ver. 1 registered
    pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
    PTP clock support registered
    imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
    MIPI CSI2 driver module loaded
    Advanced Linux Sound Architecture Driver Initialized.
    Bluetooth: Core ver 2.16
    NET: Registered protocol family 31
    Bluetooth: HCI device and connection manager initialized
    Bluetooth: HCI socket layer initialized
    Bluetooth: L2CAP socket layer initialized
    Bluetooth: SCO socket layer initialized
    nfc: nfc_init: NFC Core ver 0.1
    NET: Registered protocol family 39
    Switching to clocksource mxc_timer1
    NET: Registered protocol family 2
    TCP established hash table entries: 16384 (order: 5, 131072 bytes)
    TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
    TCP: Hash tables configured (established 16384 bind 16384)
    TCP: reno registered
    UDP hash table entries: 1024 (order: 3, 32768 bytes)
    UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
    NET: Registered protocol family 1
    RPC: Registered named UNIX socket transport module.
    RPC: Registered udp transport module.
    RPC: Registered tcp transport module.
    RPC: Registered tcp NFSv4.1 backchannel transport module.
    hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
    pureg-dummy: no parameters
    Bus freq driver module loaded
    VFS: Disk quotas dquot_6.5.2
    Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
    NFS: Registering the id_resolver key type
    Key type id_resolver registered
    Key type id_legacy registered
    jffs2: version 2.2. (NAND) \xffffffc2\xffffffa9 2001-2006 Red Hat, Inc.
    fuse init (API version 7.22)
    msgmni has been set to 3509
    io scheduler noop registered
    io scheduler deadline registered
    io scheduler cfq registered (default)
    imx-weim 21b8000.weim: WEIM driver registered.
    MIPI DSI driver module loaded
    mxc_sdc_fb fb.24: register mxc display driver ldb
    mxc_sdc_fb fb.24: NO mxc display driver found!
    mxc_sdc_fb fb.25: register mxc display driver hdmi
    mxc_sdc_fb fb.25: NO mxc display driver found!
    imx-sdma 20ec000.sdma: no iram assigned, using external mem
    imx-sdma 20ec000.sdma: initialized
    imx-sdma 20ec000.sdma: loaded firmware 1.1
    pfuze100-regulator 0-0008: Full lay: 1, Metal lay: 1
    pfuze100-regulator 0-0008: FAB: 0, FIN: 1
    SW1AB: 300 <--> 1875 mV at 1375 mV
    SW1C: 300 <--> 1875 mV at 1375 mV
    SW2: 800 <--> 3300 mV at 3300 mV
    SW3A: 400 <--> 1975 mV at 1500 mV
    SW3B: 400 <--> 1975 mV at 1500 mV
    SW4: 800 <--> 3300 mV at 3150 mV
    SWBST: 5000 <--> 5150 mV at 5000 mV
    VSNVS: 1000 <--> 3000 mV at 3000 mV
    VREFDDR: 750 mV
    VGEN1: 800 <--> 1550 mV at 1500 mV
    VGEN2: 800 <--> 1550 mV at 1500 mV
    VGEN3: 1800 <--> 3300 mV at 2800 mV
    VGEN4: 1800 <--> 3300 mV at 1800 mV
    VGEN5: 1800 <--> 3300 mV at 3000 mV
    VGEN6: 1800 <--> 3300 mV at 3300 mV
    Serial: IMX driver
    2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58) is a IMX
    21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 59) is a IMX
    21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX
    21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 62) is a IMX
    console [ttymxc4] enabled
    serial: Freescale lpuart driver
    [drm] Initialized drm 1.1.0 20060810
    [drm] Initialized vivante 1.0.0 20120216 on minor 0
    brd: module loaded
    loop: module loaded
    cr95hf nfc device registered ..
    spi_imx 2008000.ecspi: probed
    at25 spi3.0: 32 KByte at25 eeprom, pagesize 64 ee_csn 121
    spi_imx 2010000.ecspi: probed
    spi_imx 2014000.ecspi: probed
    libphy: fec_enet_mii_bus: probed
    fec 2188000.ethernet eth0: registered PHC device 0
    ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    usbcore: registered new interface driver usbserial
    usbcore: registered new interface driver ftdi_sio
    usbserial: USB Serial support registered for FTDI USB Serial Device
    mousedev: PS/2 mouse device common for all mice
    i2c-core: driver [isl29023] using legacy suspend method
    i2c-core: driver [isl29023] using legacy resume method
    snvs_rtc 20cc034.snvs-rtc-lp: rtc core: registered 20cc034.snvs-rtc-lp as rtc0
    i2c /dev entries driver
    i2c-core: driver [mag3110] using legacy suspend method
    i2c-core: driver [mag3110] using legacy resume method
    imx2-wdt 20bc000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=1)
    cpuidle: using governor ladder
    cpuidle: using governor menu
    sdhci: Secure Digital Host Controller Interface driver
    sdhci: Copyright(c) Pierre Ossman
    sdhci-pltfm: SDHCI platform and OF driver helper
    mmc0: no vqmmc regulator found
    mmc0: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
    mmc1: no vqmmc regulator found
    mmc1: no vmmc regulator found
    mmc1: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
    mmc2: no vqmmc regulator found
    mmc2: no vmmc regulator found
    mmc2: SDHCI controller on 219c000.usdhc [219c000.usdhc] using ADMA
    mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
    mxc_asrc 2034000.asrc: mxc_asrc registered
    mxc_vpu 2040000.vpu: VPU initialized
    leds-gpio gpio-leds.22: pins are not configured from the driver
    ledtrig-cpu: registered to indicate activity on CPUs
    caam 2100000.caam: device ID = 0x0a16010000000100 (Era -524)
    caam 2100000.caam: job rings = 2, qi = 0
    caam 2100000.caam: authenc-hmac-md5-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-aes-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-aes-caam
    caam 2100000.caam: authenc-hmac-md5-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-des3_ede-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-des3_ede-caam
    caam 2100000.caam: authenc-hmac-md5-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-md5-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha1-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha1-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha224-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha224-cbc-des-caam
    caam 2100000.caam: authenc-hmac-sha256-cbc-des-caam
    caam 2100000.caam: authencesn-hmac-sha256-cbc-des-caam
    caam 2100000.caam: ecb-des-caam
    caam 2100000.caam: ecb-arc4-caam
    caam 2100000.caam: ecb-aes-caam
    caam 2100000.caam: ctr-aes-caam
    caam 2100000.caam: cbc-aes-caam
    caam 2100000.caam: ecb-des3-caam
    caam 2100000.caam: cbc-3des-caam
    caam 2100000.caam: cbc-des-caam
    caam 2100000.caam: fsl,sec-v4.0 algorithms registered in /proc/crypto
    platform 2101000.jr0: registering rng-caam
    platform caam_sm: caam_sm_test: 8-byte key test match OK
    platform caam_sm: caam_sm_test: 16-byte key test match OK
    platform caam_sm: caam_sm_test: 32-byte key test match OK
    platform caam_secvio.29: security violation service handlers armed
    usbcore: registered new interface driver usbhid
    usbhid: USB HID core driver
    i2c-core: driver [cs42888] using legacy suspend method
    i2c-core: driver [cs42888] using legacy resume method
    TCP: cubic registered
    NET: Registered protocol family 10
    sit: IPv6 over IPv4 tunneling driver
    NET: Registered protocol family 17
    Bluetooth: RFCOMM TTY layer initialized
    Bluetooth: RFCOMM socket layer initialized
    Bluetooth: RFCOMM ver 1.11
    Bluetooth: HIDP (Human Interface Emulation) ver 1.2
    Bluetooth: HIDP socket layer initialized
    Key type dns_resolver registered
    VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
    VGEN3: disabling
    VGEN2: disabling
    VGEN1: disabling
    input: gpio-keys.21 as /devices/soc0/gpio-keys.21/input/input0
    snvs_rtc 20cc034.snvs-rtc-lp: setting system clock to 1970-01-01 02:52:01 UTC (10321)
    ALSA device list:
    No soundcards found.
    kjournald starting. Commit interval 5 seconds
    EXT3-fs (mmcblk2p3): using internal journal
    EXT3-fs (mmcblk2p3): mounted filesystem with ordered data mode
    VFS: Mounted root (ext3 filesystem) on device 179:3.
    devtmpfs: mounted
    Freeing unused kernel memory: 312K (80bb9000 - 80c07000)
    init: mounted-proc main process (122) terminated with status 1
    udevd[234]: starting version 175
    init: cups pre-start process (246) terminated with status 1
    imx_usb 2184000.usb: pinctrl_hsic_idle lookup failed, err=-19
    imx_usb 2184000.usb: pinctrl_hsic_active lookup failed, err=-19
    ci_hdrc ci_hdrc.0: ChipIdea HDRC found, lpm: 0; cap: f0176100 op: f0176140
    ci_hdrc ci_hdrc.0: It is OTG capable controller
    ci_hdrc ci_hdrc.0: doesn't support gadget
    ci_hdrc ci_hdrc.0: EHCI Host Controller
    ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
    ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
    usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
    usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    usb usb1: Product: EHCI Host Controller
    usb usb1: Manufacturer: Linux 3.10.17 ehci_hcd
    usb usb1: SerialNumber: ci_hdrc.0
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 1 port detected
    imx_usb 2184200.usb: pinctrl_hsic_idle lookup failed, err=-19
    imx_usb 2184200.usb: pinctrl_hsic_active lookup failed, err=-19
    ci_hdrc ci_hdrc.1: ChipIdea HDRC found, lpm: 0; cap: f017e300 op: f017e340
    ci_hdrc ci_hdrc.1: doesn't support gadget
    ci_hdrc ci_hdrc.1: EHCI Host Controller
    ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2
    ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
    usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
    usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    usb usb2: Product: EHCI Host Controller
    usb usb2: Manufacturer: Linux 3.10.17 ehci_hcd
    usb usb2: SerialNumber: ci_hdrc.1
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 1 port detected
    compat-drivers backport release: ol_r8.a8.04_32
    Backport based on wl18xx.git ol_r8.a8.10
    compat.git: wl18xx.git
    usb 1-1: new high-speed USB device number 2 using ci_hdrc
    usb 1-1: New USB device found, idVendor=0424, idProduct=2412
    usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
    hub 1-1:1.0: USB hub found
    hub 1-1:1.0: 2 ports detected
    cfg80211: Calling CRDA to update world regulatory domain
    Adding 1048572k swap on /dev/mmcblk2p2. Priority:-1 extents:1 across:1048572k SS
    wlcore: wl18xx driver version: ol_r8.a8.04_32-dirty
    cfg80211: World regulatory domain updated:
    cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
    cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm)
    cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
    cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm)
    cfg80211: (5170000 KHz - 5250000 KHz @ 160000 KHz), (N/A, 2000 mBm)
    cfg80211: (5250000 KHz - 5330000 KHz @ 160000 KHz), (N/A, 2000 mBm)
    cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm)
    cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
    cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)
    cfg80211: Calling CRDA for country: US
    cfg80211: Regulatory domain changed to country: US
    cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
    cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm)
    cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 1700 mBm)
    cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm)
    cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
    fec 2188000.ethernet eth0: Freescale FEC PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=2188000.ethernet:01, irq=-1)
    init: udev-fallback-graphics main process (486) terminated with status 1
    IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    wlcore: wl18xx HW: 183x or 180x, PG 2.1 (ROM 0xe)
    wlcore: loaded
    wlcore: driver version: ol_r8.a8.04_32-dirty
    wlcore: compilation time: Thu Jan 29 01:28:49 2015
    libphy: 2188000.ethernet:01 - Link is Up - 100/Full
    IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
    init: failsafe main process (547) killed by TERM signal

    Please note that we use same u-boot and kernel images in both the devices.

    If it is an OS/stack issue, things should work fine after reboot/reflash. That is why we doubt whether the wl1837 chip gets damaged after testing coex.

    Thanks,

    Sharaf

  • 0 in reply to Sharafuddeen Nalakath
    Prodigy 100 points
    Hi Sundeep,

    Below is the log when hciconfig hci0 up is done on device in which BT and WiFi are not working:

    root@HBOX-01114f:~# hciconfig
    hci0: Type: BR/EDR Bus: UART
    BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
    DOWN
    RX bytes:0 acl:0 sco:0 events:0 errors:0
    TX bytes:0 acl:0 sco:0 commands:0 errors:0

    root@HBOX-01114f:~# hciconfig hci0 up
    (stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failed(stk) : waiting for ver info- timed out (stk) :kim: failed to read local ver
    (stk) :download firmware failedBluetooth: st_register failed -22
    Can't init device hci0: Input/output error (5)
    root@HBOX-01114f:~#

    Please note that in order to generate more meaningful logs, I used the images that have BluZ stack instead of Bluetopia. The issue is observed irrespective of whether the stack is BlueZ or Bluetopia.

    Thanks,
    Sharaf
  • 0 in reply to Sharafuddeen Nalakath
    TI__Mastermind 32615 points
    Hi,

    Hope you have followed the steps the steps mentioned here processors.wiki.ti.com/.../WL18xx_BlueZ_Bringing_Up_on_AM335x

    a similar discussion has happened on the below E2E post I hope it helps
    e2e.ti.com/.../1277254