[U-Boot] musb: usb storage: USB device not accepting new address error

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Alper YILDIRIM

26 Mar 2011 26 Mar '11

2:15 p.m.

I am working on a custom OMAPL138 (DA8XX) based board. On 2010.12 release USB host mode is successfully working. But it is broken on 2011.03-rc1.

I am taking "USB device not accepting new address (errror=2)" error when i issue "usb start" cmd.

I analysed the problem but can not come up with a solution.

Regards.

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Remy Bohmer

26 Mar 26 Mar

7:01 p.m.

New subject: [U-Boot] musb: usb storage: USB device not accepting new address error

Hi,

2011/3/26 Alper YILDIRIM yildirimalper@gmail.com:

...

I am working on a custom OMAPL138 (DA8XX) based board. On 2010.12 release USB host mode is successfully working. But it is broken on 2011.03-rc1.

I am taking "USB device not accepting new address (errror=2)" error when i issue "usb start" cmd.

I analysed the problem but can not come up with a solution.

Have you tried 'git bisect' to find the offending patch already?

Kind regards,

Remy

Alper YILDIRIM

8:19 p.m.

New subject: [U-Boot] musb: usb storage: USB device not accepting new address error

Remy Bohmer-5 wrote:

...

Hi,

Have you tried 'git bisect' to find the offending patch already?

I am not familiar with "git bisect" cmd. I will study the usage of it and inform you afterwards. Thanks Remy

-- View this message in context: http://old.nabble.com/musb%3A-usb-storage%3A-USB-device-not-accepting-new-ad... Sent from the Uboot - Users mailing list archive at Nabble.com.

Alper YILDIRIM

29 Mar 29 Mar

3:38 p.m.

New subject: [U-Boot] musb: usb storage: USB device not accepting new address error

Hi,

Remy Bohmer-5 wrote:

...

Have you tried 'git bisect' to find the offending patch already?

I found the offending patch, it is the following commit that makes usb broken on OMAPL138. When i revert the patch the problem no more occurs.

3c0659b535b075be124c3d2a0714e55e65c46737 ARM: Avoid compiler optimization for readb, writeb and friends.

I am working on a proper solution. Any help will be appreciated

-- View this message in context: http://old.nabble.com/musb%3A-usb-storage%3A-USB-device-not-accepting-new-ad... Sent from the Uboot - Users mailing list archive at Nabble.com.

Wolfgang Denk

29 Apr 29 Apr

10:53 p.m.

New subject: [U-Boot] musb: usb storage: USB device not accepting new address error

Dear Alper YILDIRIM,

In message 31267662.post@talk.nabble.com you wrote:

...

I found the offending patch, it is the following commit that makes usb broken on OMAPL138. When i revert the patch the problem no more occurs.

3c0659b535b075be124c3d2a0714e55e65c46737 ARM: Avoid compiler optimization for readb, writeb and friends.

I am working on a proper solution. Any help will be appreciated

This problem was fixed in a later commit. See

commit 495df3bad9f250a36470cce15f14c36c616172b6 Author: Wolfgang Denk wd@denx.de Date: Fri Feb 11 12:25:48 2011 +0000

ARM: fix write*() I/O accessors

And if you read the comments in the related posting (http://article.gmane.org/gmane.comp.boot-loaders.u-boot/94502) you will also see that this explicitly mentions fixing problems in drivers/usb/musb/musb_core.c, and why.

You could have found this by searching the archives.

Best regards,

Wolfgang Denk

-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de PUBLIC NOTICE AS REQUIRED BY LAW: Any Use of This Product, in Any Manner Whatsoever, Will Increase the Amount of Disorder in the Universe. Although No Liability Is Implied Herein, the Consumer Is Warned That This Process Will Ultimately Lead to the Heat Death of the Universe.

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Alper YILDIRIM
Remy Bohmer
Wolfgang Denk