2009-03-19 02:18:43     USB OTG problem

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2009-03-19 02:18:43     USB OTG problem

jacqueline liu (CHINA)

Message: 71230   

 

hi

 

i'm using the BF52-ezkit . recently i tried to use the usb flash disk

 

but i find that after the usb flash dist insert , not any information appeared .

 

i've set the kernel setting as below:

 

[Linux Kernel Configuration] -→ [Device Drivers] -→ [USB support]

<*> Support for Host-side USB

[*]   USB device filesystem

[*]   USB device class-devices (DEPRECATED)

<*> Inventra Highspeed Dual Role Controller (TI, ADI, ...)

---   Blackfin BF54x high speed USB support

       Driver Mode (USB Peripheral (gadget stack))  --->

[ ]   Disable DMA (always use PIO)

(0)   Logging Level (0 - none / 3 - annoying / ... )

 

 

USB support  --->

    <*> USB Mass Storage support

SCSI device support --->

     --- SCSI device support

     <*> SCSI disk support

     [*] Probe all LUNs on each SCSI device

File systems --->

   DOS/FAT/NT Filesystems --->

     <*> MSDOS fs support

       <*> VFAT (Windows-95) fs support

          (437) Default codepage for FAT

          (iso8859-1) Default iocharset for FAT

   Native Language Support --->

     --- Base native language support

     (iso8859-1) Default NLS Option

     <*>   Codepage 437 (United States, Canada)

     <*>   NLS ISO 8859-1  (Latin 1; Western European Languages)After booting the kernel, plug the

 

 

it should be ok as the doc said .

 

is there something missing ?

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2009-03-19 03:34:58     Re: USB OTG problem

Mike Frysinger (UNITED STATES)

Message: 71231   

 

try disabling DMA and force PIO mode

 

also try searching the forum as there have been some posts in the past ... perhaps you're running into the same gotchas they were ...

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2009-03-19 04:35:16     Re: USB OTG problem

jacqueline liu (CHINA)

Message: 71259   

 

hi Mike

 

doesn't the setting of

 

[ ]   Disable DMA (always use PIO)

(0)   Logging Level (0 - none / 3 - annoying / ... )

 

 

disablling or force PIO?

 

i've already some forums before about the USB OTG ,but it seems that my problem's a little different.

 

almost all of them could get some words from the uart such as "usb1.1 ......."

 

but i got nothing .

 

the hardware on board of SW13.2 and SW13.6 that i have set as OFF ON to enable the usb .

 

so i wonder why it seems that the usb otg interface does not seem to be working at all?

 

 

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2009-03-19 04:44:22     Re: USB OTG problem

Mike Frysinger (UNITED STATES)

Message: 71260   

 

post your entire kernel boot up output

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