[U-Boot] USB serial console under Uboot

[U-Boot] USB serial console under Uboot

[mike zheng]

Hello,

I have one system with USB connector only, no RS232 port. How can I do
the interaction with Uboot?

Thanks for your help,

Mike

[U-Boot] USB serial console under Uboot

[Ben Warren]

mike zheng wrote:
> Hello,
>
> I have one system with USB connector only, no RS232 port. How can I do
> the interaction with Uboot?
>   
You can start by providing much more detail.  I don't know if there's 
USB console support in U-boot, but if so I'm sure it's hardware dependent.

regards,
Ben

[U-Boot] USB serial console under Uboot

[Hunter, Jon]

> > Hello,
> >
> > I have one system with USB connector only, no RS232 port. How can I do
> > the interaction with Uboot?
> >
> You can start by providing much more detail.  I don't know if there's
> USB console support in U-boot, but if so I'm sure it's hardware dependent.

There is usbtty support in u-boot but only for some OMAP1 devices (although it is broken in the current release) and for some MPC devices. Unfortunately, I don't believe that this is currently supported for OMAP3. Therefore, I think that you are going to need an RS232-to-USB dongle for your PC in order to interact with u-boot.

Cheers
Jon

[U-Boot] USB serial console under Uboot

[Hunter, Jon]

> There is usbtty support in u-boot but only for some OMAP1 devices
> (although it is broken in the current release) and for some MPC devices.
> Unfortunately, I don't believe that this is currently supported for OMAP3.
> Therefore, I think that you are going to need an RS232-to-USB dongle for
> your PC in order to interact with u-boot.

Sorry...I thought this on an OMAP3 list and not u-boot. Looking at the wrong mailing list!

Cheers
Jon

[U-Boot] USB serial console under Uboot

[mike zheng]

I do have a USB-RS232 cable. I am using MPC8549 as processor. Would
you please let me know more details on the usbtty?

On 8/20/08, Hunter, Jon <jon-hunter@ti.com> wrote:
> > > Hello,
> > >
> > > I have one system with USB connector only, no RS232 port. How can I do
> > > the interaction with Uboot?
> > >
> > You can start by providing much more detail.  I don't know if there's
> > USB console support in U-boot, but if so I'm sure it's hardware dependent.
>
> There is usbtty support in u-boot but only for some OMAP1 devices (although it is broken in the current release) and for some MPC devices. Unfortunately, I don't believe that this is currently supported for OMAP3. Therefore, I think that you are going to need an RS232-to-USB dongle for your PC in order to interact with u-boot.
>
> Cheers
> Jon
>

[U-Boot] USB serial console under Uboot

[Menon, Nishanth]

Mike,
> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de] On Behalf Of mike zheng
> Sent: Wednesday, August 20, 2008 3:44 PM
> To: Hunter, Jon
> Cc: u-boot at lists.denx.de; Ben Warren
> Subject: Re: [U-Boot] USB serial console under Uboot
> 
> I do have a USB-RS232 cable. I am using MPC8549 as processor. Would
> you please let me know more details on the usbtty?
> 
See:
http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/usbtty.c;h=2f89e2b7411c307cf27a5876ed6fb49b786e3d86;hb=232c150a250bb2fcb894b15d67c65df2458e271f

used to have it, but I don't see it in http://git.denx.de/?p=u-boot.git;a=tree;f=drivers/usb;hb=HEAD

Regards,
Nishanth Menon

[U-Boot] USB serial console under Uboot

[Wolfgang Denk]

Dear "Menon, Nishanth",

In message <7A436F7769CA33409C6B44B358BFFF0CD9C6F16D@dlee02.ent.ti.com> you wrote:
>
> > I do have a USB-RS232 cable. I am using MPC8549 as processor. Would
> > you please let me know more details on the usbtty?
> > 
> See:
> http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/usbtty.c;h=2f89e2b7411c307cf27a5876ed6fb49b786e3d86;hb=232c150a250bb2fcb894b15d67c65df2458e271f
> 
> used to have it, but I don't see it in http://git.denx.de/?p=u-boot.git;a=tree;f=drivers/usb;hb=HEAD

That's because the driver is in drivers/serial/usbtty.c now.

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 at denx.de
How does a project get to be a year late?      ... One day at a time.

[U-Boot] USB serial console under Uboot

[mike zheng]

I found it in U-boot-1.3.4 under /drivers/serial directory.  Anyone
has document on the setup?

Thanks,

On 8/20/08, Menon, Nishanth <x0nishan@ti.com> wrote:
> Mike,
> > -----Original Message-----
> > From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de] On Behalf Of mike zheng
> > Sent: Wednesday, August 20, 2008 3:44 PM
> > To: Hunter, Jon
> > Cc: u-boot at lists.denx.de; Ben Warren
> > Subject: Re: [U-Boot] USB serial console under Uboot
> >
> > I do have a USB-RS232 cable. I am using MPC8549 as processor. Would
> > you please let me know more details on the usbtty?
> >
> See:
> http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/usbtty.c;h=2f89e2b7411c307cf27a5876ed6fb49b786e3d86;hb=232c150a250bb2fcb894b15d67c65df2458e271f
>
> used to have it, but I don't see it in http://git.denx.de/?p=u-boot.git;a=tree;f=drivers/usb;hb=HEAD
>
> Regards,
> Nishanth Menon
>