Babble interrupt occured in musb

lyf sci

Hi Experts,

I am using Linux kernel 3.2 version in the AM335x EVMSK. I tried connecting USB modem with the EVM kit and started operating it.

I tried disabling the Run Time power management configuration in the kernel but it still fails.

Regards,

Lyf

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi,
Please try the following patch.

github.com/.../0008-usb-musb-update-babble-workaround-fix.patch

0 lyf sci over 10 years ago in reply to Titusrathinaraj Stalin

Genius 3720 points

Hi Titus,

The device keeps on re-enumerating.

Still the issue persist.

Regards,
Lyf

0 lyf sci over 10 years ago in reply to Titusrathinaraj Stalin

Genius 3720 points

Hi ,

My code already contains the patch.. The devices keeps on re-enumerating.

Any other possiblity on debugging it ?

Regards,
Lyf

0 Titusrathinaraj Stalin over 10 years ago in reply to lyf sci

TI__Guru** 116100 points

Hi,
Could you disable the USB DMA (CPPI) and use PIO mode.
You can configure this through make menuconfig option.

Device Drivers --->
[*] USB support --->
[*] Disable DMA (always use PIO)

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Babble interrupt occured in musb