AM335x-PSP

Michi Yamamoto

Hi,

I have questions regarding AM335x PSP 04.06.0.00.03 version.

Our customer is using the above version of PSP.

According to the release note, the following issues are written in it as known issues.

１）SDOCM0008576[30] : USB: devices connected through a full speed(USB1.1)hub fail to wrok in DMA mode.

2) SDOCM00087342[60] : USB : CPPI4.1 DMA locks up when CPU mode transfer is done in parallel to DMA transfer.

On customer's application, the above both cases may be happened.

So customer would like to know that these issues are caused by hardware issue of device or software issue of the kernel.

Of course, it is preferable the cause is sofware issue. If it is software issue, when is it fixed?

Please advise me.

Best regards,

Michi

0 Ajay over 13 years ago

Michi,

1) SDOCM0008576: This has already been fixed at patch is merged in linus's mainline tree and available at,

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ccc080c77cd47fde5eb097058fae930b956096eb

2) SDOCM00087342: This is currently being debugged and a workaround is also being tested. will keep you updated on this.

Ajay

0 Michi Yamamoto over 13 years ago in reply to Ajay

Dear Steve-san,

Thank you for your reply.

I have one questions.

Do you know next PSP release schedule included both issues fixed?

Best regards,

Michi

0 Michi Yamamoto over 13 years ago in reply to Michi Yamamoto

Dear Steve-san,

I have one more question.

Have the following the known issue already fixed? or not?

SDOCM00086520[35] USB Host port stops enumerating devices after one disconnect / connect cycle.

Please check it.

Best regards,

Michi

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