FAQ: [#6436] Linux crashes with SL811 and interrupt on PH2 on BF537(2011)

Document created by Aaronwu Employee on Sep 11, 2013
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[#6436] Linux crashes with SL811 and interrupt on PH2 on BF537

Submitted By: Jay Ku

Open Date

2011-01-06 11:54:06     Close Date

2011-10-20 01:08:07

Priority:

Medium     Assignee:

Nobody

Status:

Closed     Fixed In Release:

N/A

Found In Release:

2010R1-RC5     Release:

Category:

Drivers     Board:

N/A

Processor:

BF537     Silicon Revision:

0.3

Is this bug repeatable?:

Yes     Resolution:

Fixed

Uboot version or rev.:

    Toolchain version or rev.:

2010

App binary format:

N/A     

Summary: Linux crashes with SL811 and interrupt on PH2 on BF537

Details:

 

See https://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?_forum_action=ForumMessageBrowse&thread_id=44236&action=ForumBrowse&forum_id=39.  I have a custom BF537 board with an SL811 USB controller.  I have the IRQ from the SL811 coming into the BF537 on PH2.  The driver initializes correctly, but when I insert any device it causes Linux to crash.  If I change the interrupt to PF4 there is no crash and the USB seems to work correctly. 

 

I am using the RMII interface on Port H.  RMII doesn't use PH2, but maybe this is contributing to the problem.

 

Follow-ups

 

--- Mike Frysinger                                           2011-01-06 13:30:59

please post your actually config files you're using (use `make bugreport`).  and

post your board config file.

 

--- Sonic Zhang                                              2011-10-20 01:13:42

If you use RMII PHY on BF537 and use PH2 in SL811, make sure you disconnect PH2

to your PHY on your board.

 

--- Mike Frysinger                                           2011-10-20 08:02:01

GPIO/IRQ support was added to trunk after this report for PH pins in RMII mode.

so this probably is a legit, but it's now fixed in trunk.

 

 

 

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File Name     File Type     File Size     Posted By

bugreport.tar.gz    application/gzip    21026    Jay Ku

js10000_2.c    application/octet-stream    20360    Jay Ku

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