[U-Boot] USB only works in Linux if started in UBoot

[U-Boot] USB only works in Linux if started in UBoot

[Einar Már Björgvinsson]

hi

I was wondering what I was doing wrong here !

The USB functionality in Linux only works if I run 'usb start' in UBoot before starting the kernel.

Not sure what will resolve this, of course I can make automatic start command during starting of the bootloader but I think that's not optimal.

Any thoughts on this ?

Regards
Einar M. Bjorgvinsson

[U-Boot] USB only works in Linux if started in UBoot

[Mike Frysinger]

On Thursday, May 12, 2011 11:36:19 Einar M?r Bj?rgvinsson wrote:
> The USB functionality in Linux only works if I run 'usb start' in UBoot
> before starting the kernel.

file a bug with the Linux maintainers
-mike
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[U-Boot] USB only works in Linux if started in UBoot

[Peter Tyser]

On Thu, 2011-05-12 at 15:36 +0000, Einar M?r Bj?rgvinsson wrote:
> hi
> 
> I was wondering what I was doing wrong here !
> 
> The USB functionality in Linux only works if I run 'usb start' in UBoot before starting the kernel.
> 
> Not sure what will resolve this, of course I can make automatic start command during starting of the bootloader but I think that's not optimal.
> 
> Any thoughts on this ?

What hardware are you running on?  What kernel version are you using?
What U-Boot version are you using?

This issue was present on some Freescale CPUs, but has been fixed in the
mainline kernel by the following commit in case you're running on one of
their CPUs:
http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commitdiff;h=cc604ddd118cf4a699c12bc41a5fa2d2f225f702;hp=ad84e4a9efb7c8ed322bafb6ebdb9c3a49a3d3a8

Best,
Peter

[U-Boot] USB only works in Linux if started in UBoot

[Einar Már Björgvinsson]

hi

of course I forgot to mention my platform, sorry about that

CPU: MPC5200b
Kernel: 2.6.33-rc6
Uboot: U-Boot 2009.03

regards
Einar

________________________________________
From: u-boot-bounces@lists.denx.de [u-boot-bounces at lists.denx.de] on behalf of Peter Tyser [ptyser at xes-inc.com]
Sent: Thursday, May 12, 2011 4:28 PM
To: Einar M?r Bj?rgvinsson
Cc: U-Boot at lists.denx.de
Subject: Re: [U-Boot] USB only works in Linux if started in UBoot

On Thu, 2011-05-12 at 15:36 +0000, Einar M?r Bj?rgvinsson wrote:
> hi
>
> I was wondering what I was doing wrong here !
>
> The USB functionality in Linux only works if I run 'usb start' in UBoot before starting the kernel.
>
> Not sure what will resolve this, of course I can make automatic start command during starting of the bootloader but I think that's not optimal.
>
> Any thoughts on this ?

What hardware are you running on?  What kernel version are you using?
What U-Boot version are you using?

This issue was present on some Freescale CPUs, but has been fixed in the
mainline kernel by the following commit in case you're running on one of
their CPUs:
http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commitdiff;h=cc604ddd118cf4a699c12bc41a5fa2d2f225f702;hp=ad84e4a9efb7c8ed322bafb6ebdb9c3a49a3d3a8

Best,
Peter

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[U-Boot] USB only works in Linux if started in UBoot

[Mehresh Ramneek-B31383]

Hi Einar

On which platform you faced this issue ?

Regards,
Ramneek.