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Re: USB detection in DM8148

debasish saha1
Intellectual 920 points

Hi,


I am using a DM8148 custom board. In the hardware design the USB ID pin is not properly connected. I have the following question

a) With  the USB ID pin not properly connected is it possible to detect the USB as Host Controller? If yes can you tell me how to do so?

Thanks,

Debasish

  • 0
    Guru 31670 points

    Debasish,

    You can force one of the modes in software. 

  • 0 in reply to Renjith Thomas
    Intellectual 920 points

    Hi Renjith,


    I have forced USB ID pin selection from software as shown:

              TI816X usb connector's ID pin control (from software setting) ---> 
                                    (X) from software setting                    
                                    ( ) from usb connector                       

    But after booting up, when I am connecting some USB device it is not detecting.
    I have attached the logs. 



    
    
    
        Fullscreen
        4571.log_usb.txt
        Download
    
    
    
    ## Booting kernel from Legacy Image at 84000000 ...
   Image Name:   Linux-2.6.37+
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1685012 Bytes = 1.6 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 81000000 ...
   Image Name:   initrd image
   Image Type:   ARM Linux RAMDisk Image (uncompressed)
   Data Size:    25600000 Bytes = 24.4 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.37+ (root@ubuntu) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #59 Tue Dec 31 14:02:34 IST 2013
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: ti8148evm
bootconsole [earlycon0] enabled
reserved size = 0 at 0x0
Memory policy: ECC disabled, Data cache writeback
OMAP chip is TI8148 2.0
SRAM: Mapped pa 0x40300000 to va 0xfe400000 size: 0x20000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 44660
Kernel command line: console=ttyO0,115200n8 mem=176M earlyprintk root=/dev/ram0 rw initrd=0x81000000
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 176MB = 176MB total
Memory: 149660k/149660k available, 30564k reserved, 0K highmem
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    DMA     : 0xffc00000 - 0xffe00000   (   2 MB)
    vmalloc : 0xcb800000 - 0xf8000000   ( 712 MB)
    lowmem  : 0xc0000000 - 0xcb000000   ( 176 MB)
    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
    modules : 0xbf000000 - 0xbfe00000   (  14 MB)
      .init : 0xc0008000 - 0xc0037000   ( 188 kB)
      .text : 0xc0037000 - 0xc0331000   (3048 kB)
      .data : 0xc0332000 - 0xc036c380   ( 233 kB)
SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:375
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
OMAP clockevent source: GPTIMER1 at 20000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 399.76 BogoMIPS (lpj=1998848)
pid_max: default: 32768 minimum: 301
Security Framework initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
regulator: core version 0.5
regulator: dummy:
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
evm_init 1
omap_mux_init: Add partition: #1: core, flags: 4
evm_init 2
evm_init 4
evm_init 5
evm_init 6 evm_init 7 Executing the Pincntrl


Executed the pincntrl--done
Executing the Pincntrl


Executed the pincntrl--done
evm_init 8 evm_init 9 evm_init 10 evm_init 11
evm_init 12 evm_init done
Debugfs: Only enabling/disabling deep sleep and wakeup timer is supported now
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
registerd cppi-dma Intr @ IRQ 17
Cppi41 Init Done
omap_i2c omap_i2c.1: bus 1 rev4.0 at 100 kHz
Switching to clocksource gp timer
musb-hdrc: version 6.0, host, debug=0
musb-hdrc musb-hdrc.0: dma type: dma-cppi41
musb-hdrc musb-hdrc.0: MUSB HDRC host driver
musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
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: MUSB HDRC host driver
usb usb1: Manufacturer: Linux 2.6.37+ musb-hcd
usb usb1: SerialNumber: musb-hdrc.0
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
musb-hdrc musb-hdrc.0: USB Host mode controller at cb81a000 using DMA, IRQ 18
musb-hdrc musb-hdrc.1: dma type: dma-cppi41
musb-hdrc musb-hdrc.1: MUSB HDRC host driver
musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 2
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: MUSB HDRC host driver
usb usb2: Manufacturer: Linux 2.6.37+ musb-hcd
usb usb2: SerialNumber: musb-hdrc.1
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
musb-hdrc musb-hdrc.1: USB Host mode controller at cb81e800 using DMA, IRQ 19
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (junk in compressed archive); looks like an initrd
Freeing initrd memory: 25000K
NetWinder Floating Point Emulator V0.97 (double precision)
PMU: registered new PMU device of type 0
omap-iommu omap-iommu.0: ducati registered
omap-iommu omap-iommu.1: sys registered
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 341
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
omap_uart.0: ttyO0 at MMIO 0x48020000 (irq = 72) is a OMAP UART0
console [ttyO0] enabled, bootconsole disabled
console [ttyO0] enabled, bootconsole disabled
omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
brd: module loaded
loop: module loaded
lkdtm: No crash points registered, enable through debugfs
omap2-nand driver initializing
usbcore: registered new interface driver cdc_acm
cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mice: PS/2 mouse device common for all mice
omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
Linux video capture interface: v2.00 SUCCESS
adv7180 1-0021: chip found @ 0x42 (OMAP I2C adapter)
v4l2 i2c subdev init
gspca: v2.10.0 registered
OMAP Watchdog Timer Rev 0x00: initial timeout 60 sec

Inside omap_hsmmc_probe
Enabling clocks for TI8148

omap_hsmmc_probe compleated

Inside omap_hsmmc_probe
Enabling clocks for TI8148

omap_hsmmc_probe compleated
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
mpu.0 supply mpu not found, using dummy regulator
Power Management for TI81XX.
omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 25000KiB [1 disk] into ram disk...
Starting MMC Rescan
mmc0: mmc_rescan: trying to init card at 400000 Hz
MMC_RESCAN - Sending OP COND ffor MMC ...
The argument is 0x00000000
The changed argument is 0x40ff8080
 MMC Rescan Failed
MMC Rescan Success
Starting MMC Rescan
mmc1: mmc_rescan: trying to init card at 400000 Hz
MMC_RESCAN - Sending OP COND ffor MMC ...
The argument is 0x00000000
The changed argument is 0x40ff8080

The argument is 0x40800000
The changed argument is 0x40ff8080
mmc1: new high speed MMC card at address 0001
mmcblk0: mmc1:0001 MMC16G 14.5 GiB
 mmcblk0: p1 p2 < >
MMC Rescan Success
done.
VFS: Mounted root (ext2 filesystem) on device 1:0.
devtmpfs: mounted
Freeing init memory: 188K
INIT: version 2.86 booting
INIT: Entering runlevel: 5
Starting telnet daemon.
Starting syslogd/klogd: done
 _____                    _____           _         _
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|
              |___|                    |___|

Arago Project http://arago-project.org (none) ttyO0

Arago 2011.09 (none) ttyO0

(none) login: root
root@(none):~# lsusb
lsusb: cannot open "/usr/share/usb.ids", No such file or directory
Bus 002 Device 001: ID 1d6b:0002
Bus 001 Device 001: ID 1d6b:0002
root@(none):~#
root@(none):~#
  • 0 in reply to debasish saha1
    Guru 31670 points

    Debashish,

    Its difficult to say whats wrong from the logs. I need to see exactly what you are doing. Can you share more details of your hardware including the schematics. Which device have you tried connecting? Please share a snapshot of your setup.

  • 0 in reply to Renjith Thomas
    Intellectual 920 points

    Hi Renjith,

    As you asked, I have attached a zip file of the schematics of the USB which I am using.

    And regarding the device which I connected, I have used two devices, not simultaneously , but one after another. These are as:

    1) A Pendrive of 8gb in the first time                                               

    2) A USB-HUB which draws external power-supply, and connected a pen-drive to one of its port, in the second run.

    But in both the cases the USB was not detected.

    7178.USB_INTERFACE.rar

  • 0 in reply to debasish saha1
    Guru 31670 points

    Hi Debashish,

    Have you tried to connect the device to PC in peripheral mode? Are you using the DM8148 EVM? If so, what is the revision of the board?

  • 0 in reply to Renjith Thomas
    Intellectual 920 points

    Hi Renjith,

    My requirement is to use the USB in host mode. Can you please suggest how to make the USB controller of DM8148 in host mode from the software side, when the USB ID pin is not properly connected?

    And I am not using the DM8148 EVM, it is a custom board.

    Regards,

    Debasish

  • 0 in reply to debasish saha1
    Guru 31670 points

    Debasish,

    Can you try first on an DM8148 EVM and see whether host works properly or not. Then let's try to debug your board's issue.