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no encoder/connectors found

Ankur Tank
Expert 2985 points
Other Parts Discussed in Thread: TFP410

Hi,

I am using BBB and chipsee lcd with build system Yocto project,

I am using yocto daisy and i could boot the BBB successfully.

But i am not able to see anything on the LCD.

I am getting following errors,

tilcdc 4830e000.lcdc: no encoders/connectors found
mmc0: new high speed SDHC card at address e624
tilcdc 4830e000.lcdc: failed to initialize mode setting
mmcblk0: mmc0:e624 SU04G 3.69 GiB
tilcdc 4830e000.fb: no encoders/connectors found
 mmcblk0: p1 p2
tilcdc 4830e000.fb: failed to initialize mode setting

I have attached the full bootlog and the dts file with this.

Any pointers/suggestions for the same?

Thank you,

Regards,

Ankur

0844.bbb_chipsee_linux3.14_log.txt

1680.am335x-boneblack_dts.txt

  • 0 in reply to Titusrathinaraj Stalin
    Expert 2985 points

    Hi Titus,

    Thank you for reply,
    I will have to check TFP410 support in Linux,

    I am very new to this LCD interfacing,
    Meanwhile do you see anything wrong in device tree ?
    I am getting devicetree samples for hdmi lcd but not for DVI.

    Regards,
    Ankur

  • 0 in reply to Ankur Tank
    TI__Guru** 116100 points

    Hi Ankur,

    Your dts files seems to ok but you have to enable the TFP410 driver and its dts support.

    Ex:

    http://www.spinics.net/lists/linux-omap/msg89038.html

  • 0 in reply to Titusrathinaraj Stalin
    Expert 2985 points

    Hi Titus,

    Sorry for late reply, I was on vacation,
    Before going on vacation, I had tried mentioned dts changes but without any success.
    With my limited knowledge i think Changes mentioned in the link is for beagleboard and not for beaglebone.
    I think TFP410 is NOT part of beaglebone black,

    Any suggestions/corrections ?

    Thank you,

    Regards,
    Ankur

  • 0 in reply to Ankur Tank
    Expert 2985 points

    Hi Titus,

    After some modification i could remove at least "no encoder/connector found" error.
    Here is the boot log for the same,
    Booting Linux on physical CPU 0x0
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Initializing cgroup subsys cpuacct
Linux version 3.14.0-yocto-standard (ankur@Ankur-VirtualBox) (gcc version 4.8.2 (GCC) ) #2 PREEMPT Sun Oct 19 20:17:18 IST 2014
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: TI AM335x BeagleBone
cma: CMA: reserved 16 MiB at 9e800000
Memory policy: Data cache writeback
CPU: All CPU(s) started in SVC mode.
AM335X ES2.0 (sgx neon )
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 129792
Kernel command line: console=ttyO1,115200n8 root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait;
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
allocated 1048576 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 489424K/523264K available (7499K kernel code, 520K rwdata, 2460K rodata, 488K init, 757K bss, 33840K reserved, 0K highmem)
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    vmalloc : 0xe0800000 - 0xff000000   ( 488 MB)
    lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
    modules : 0xbf000000 - 0xbfe00000   (  14 MB)
      .text : 0xc0008000 - 0xc09c2080   (9961 kB)
      .init : 0xc09c3000 - 0xc0a3d074   ( 489 kB)
      .data : 0xc0a3e000 - 0xc0ac00d4   ( 521 kB)
       .bss : 0xc0ac00d4 - 0xc0b7d678   ( 758 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
NR_IRQS:16 nr_irqs:16 16
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
OMAP clockevent source: timer2 at 24000000 Hz
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
OMAP clocksource: timer1 at 24000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 548.86 BogoMIPS (lpj=2744320)
pid_max: default: 32768 minimum: 301
Security Framework initialized
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Initializing cgroup subsys debug
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
CPU: Testing write buffer coherency: ok
ftrace: allocating 25110 entries in 74 pages
Setting up static identity map for 0x806c5640 - 0x806c5698
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
omap_hwmod: tptc0 using broken dt data from edma
omap_hwmod: tptc1 using broken dt data from edma
omap_hwmod: tptc2 using broken dt data from edma
omap_hwmod: debugss: _wait_target_disable failed
xor: measuring software checksum speed
   arm4regs  :   685.200 MB/sec
   8regs     :   504.800 MB/sec
   32regs    :   658.800 MB/sec
xor: using function: arm4regs (685.200 MB/sec)
pinctrl core: initialized pinctrl subsystem
regulator-dummy: no parameters
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
platform 49000000.edma: alias fck already exists
platform 49000000.edma: alias fck already exists
platform 49000000.edma: alias fck already exists
OMAP GPIO hardware version 0.1
platform 481cc000.d_can: alias fck already exists
hw-breakpoint: debug architecture 0x4 unsupported.
bio: create slab <bio-0> at 0
raid6: int32x1     89 MB/s
raid6: int32x2    107 MB/s
raid6: int32x4     90 MB/s
raid6: int32x8     92 MB/s
raid6: using algorithm int32x2 (107 MB/s)
raid6: using intx1 recovery algorithm
edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
vmmcsd_fixed: 3300 mV
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
omap_i2c 44e0b000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c0_pins, deferring probe
platform 44e0b000.i2c: Driver omap_i2c requests probe deferral
omap_i2c 4802a000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c1_pins, deferring probe
platform 4802a000.i2c: Driver omap_i2c requests probe deferral
cfg80211: Calling CRDA to update world regulatory domain
Switched to clocksource timer1
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 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-A8 PMU driver, 5 counters available
futex hash table entries: 256 (order: -1, 3072 bytes)
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
msgmni has been set to 987
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
omap_uart 44e09000.serial: no wakeirq for uart0
44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88, base_baud = 3000000) is a OMAP UART0
omap_uart 48022000.serial: no wakeirq for uart0
48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 89, base_baud = 3000000) is a OMAP UART1
console [ttyO1] enabled
omap_uart 48024000.serial: no wakeirq for uart0
48024000.serial: ttyO2 at MMIO 0x48024000 (irq = 90, base_baud = 3000000) is a OMAP UART2
omap_uart 481a8000.serial: no wakeirq for uart0
481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 61, base_baud = 3000000) is a OMAP UART4
[drm] Initialized drm 1.1.0 20060810
brd: module loaded
mtdoops: mtd device (mtddev=name/number) must be supplied
usbcore: registered new interface driver kaweth
pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver
usbcore: registered new interface driver pegasus
usbcore: registered new interface driver rtl8150
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver dm9601
usbcore: registered new interface driver smsc75xx
usbcore: registered new interface driver smsc95xx
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver zaurus
usbcore: registered new interface driver MOSCHIP usb-ethernet driver
usbcore: registered new interface driver int51x1
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-omap: OMAP-EHCI Host Controller driver
usbcore: registered new interface driver usb-storage
mousedev: PS/2 mouse device common for all mice
omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
i2c /dev entries driver
omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
48060000.mmc supply vmmc_aux not found, using dummy regulator
481d8000.mmc supply vmmc_aux not found, using dummy regulator
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using arm/armv7
u32 classifier
    Actions configured
TCP: cubic registered
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Key type dns_resolver registered
ThumbEE CPU extension supported.
bio: create slab <bio-1> at 1
Btrfs loaded
mmc0: host does not support reading read-only switch. assuming write-enable.
regulator-dummy: disabling
mmc0: new high speed SDHC card at address e624
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
mmcblk0: mmc0:e624 SU04G 3.69 GiB
[drm] No driver support for vblank timestamp query.
 mmcblk0: p1 p2
Console: switching to colour frame buffer device 128x37
tilcdc 4830e000.lcdc: fb0:  frame buffer device
tilcdc 4830e000.lcdc: registered panic notifier
[drm] Initialized tilcdc 1.0.0 20121205 on minor 0
DCDC1: at 1500 mV
vdd_mpu: 925 <--> 1325 mV at 1100 mV
vdd_core: 925 <--> 1150 mV at 1100 mV
LDO1: at 1800 mV
LDO2: at 3300 mV
LDO3: 1800 mV
LDO4: at 3300 mV
tps65217 0-0024: TPS65217 ID 0xe version 1.2
omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz
console [netcon0] enabled
netconsole: network logging started
davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
davinci_mdio 4a101000.mdio: detected phy mask fffffffe
libphy: 4a101000.mdio: probed
davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
Detected MACID = 90:59:af:5b:ec:e5
input: gpio_keys.5 as /devices/ocp.3/gpio_keys.5/input/input0
omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
EXT4-fs (mmcblk0p2): recovery complete
EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 179:2.
devtmpfs: mounted
Freeing unused kernel memory: 488K (c09c3000 - c0a3d000)
mmc1: BKOPS_EN bit is not set
mmc1: new high speed MMC card at address 0001
mmcblk1: mmc1:0001 MMC02G 1.78 GiB
mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
 mmcblk1: unknown partition table
 mmcblk1boot1: unknown partition table
 mmcblk1boot0: unknown partition table
INIT: version 2.88 booting
Starting udev
udevd[88]: starting version 182
EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
random: nonblocking pool is initialized
Sun Nov  9 18:12:29 UTC 2014
INIT: Entering runlevel: 5
Configuring network interfaces... net eth0: initializing cpsw version 1.12 (0)
net eth0: phy found : id is : 0x7c0f1
libphy: PHY 4a101000.mdio:01 not found
net eth0: phy 4a101000.mdio:01 not found on slave 1
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
udhcpc (v1.22.1) started
Sending discover...
Sending discover...
Sending discover...
No lease, forking to background
done.
Starting syslogd/klogd: done

Poky (Yocto Project Reference Distro) 1.7 beaglebone /dev/ttyO1

beaglebone login: root
root@beaglebone:~# export DISPLAY=0.0
root@beaglebone:~# cat /dev/urandom > /dev/fb0
cat: write error: No space left on device
root@beaglebone:~#

    But problem is there is not activity on the display :(

    even "cat  /dev/urandom > /dev/fb0" gives error as "cat : Write error : No space left on device" error.

    Updated device-tree is available at below location

    https://github.com/AnkurTank/chipsee_kernel3.14_support/blob/master/am335x-boneblack.dts

    Thank you,

    Regards,

    Ankur