[#5531] Usb SL811 failed on uclinux2009r1-rc6 on bf532 board.

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[#5531] Usb SL811 failed on uclinux2009r1-rc6 on bf532 board.

Submitted By: Sonic Zhang

Open Date

2009-09-13 23:37:59     Close Date

2009-09-22 03:21:43

Priority:

Medium     Assignee:

Michael Hennerich

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2009R1-RC6     Release:

Category:

N/A     Board:

N/A

Processor:

BF532     Silicon Revision:

Is this bug repeatable?:

Yes     Resolution:

Rejected

Uboot version or rev.:

    Toolchain version or rev.:

2009R1

App binary format:

N/A     

Summary: Usb SL811 failed on uclinux2009r1-rc6 on bf532 board.

Details:

 

An customer reported that Usb SL811 failed on uclinux2009r1-rc6 on bf532 board.

 

http://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?_forum_action=MessageReply&message_id=79759&action=ForumBrowse

 

Follow-ups

 

--- Michael Hennerich                                        2009-09-21 06:54:49

You run SCLK @ 133MHz the SL811 driver won't work at this speed without the

DUMMY_DELAY option enabled!

>CONFIG_NO_DUMMY_DELAY=y

 

Adjust the EBIU timings of the bank the SL811 is connected to.

Then set a proper DUMMY_DELAY bank that fits the additional cycles of delay

needed to talk to the SL811.

 

I'm sure that will fix your problem.

 

-Michael

 

--- Michael Hennerich                                        2009-09-22 03:21:43

http://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?_forum_action=MessageReply&message_id=79759&action=ForumBrowse

 

a bit further down the thread:

 

"Submitted By: roy xue (royxue)

 

Hi, Michael

 

Thanks for help. We slow down the EBIU and the USB work now.

 

Regards,

 

Roy"

 

So close this bug now....

 

-Michael

 

 

 

 

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