public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
* [U-Boot] Loading kernel from usb
@ 2012-03-24  0:30 Calvin Boyd
  2012-03-25  0:41 ` Marek Vasut
  0 siblings, 1 reply; 3+ messages in thread
From: Calvin Boyd @ 2012-03-24  0:30 UTC (permalink / raw)
  To: u-boot





I am currently working on a project and I am trying to load the kernel from usb instead of an sd card.  How do you configure u-boot to support usb commands? 		 	   		  

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [U-Boot] Loading kernel from usb
  2012-03-24  0:30 [U-Boot] Loading kernel from usb Calvin Boyd
@ 2012-03-25  0:41 ` Marek Vasut
       [not found]   ` <SNT112-W2847057EE6B19254BFBC479F450@phx.gbl>
  0 siblings, 1 reply; 3+ messages in thread
From: Marek Vasut @ 2012-03-25  0:41 UTC (permalink / raw)
  To: u-boot

Dear Calvin Boyd,

> I am currently working on a project and I am trying to load the kernel from
> usb instead of an sd card.  How do you configure u-boot to support usb
> commands?

Why don't you attempt to please read the documentation first? Try 
"CONFIG_CMD_USB" for starters.

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [U-Boot] Loading kernel from usb
       [not found]   ` <SNT112-W2847057EE6B19254BFBC479F450@phx.gbl>
@ 2012-03-26  2:04     ` Marek Vasut
  0 siblings, 0 replies; 3+ messages in thread
From: Marek Vasut @ 2012-03-26  2:04 UTC (permalink / raw)
  To: u-boot

Dear Calvin Boyd,

* please always CC the mailing list!
* please avoid top-posting!

> Dear Marek Vasut,
> 
> I tried using the CONFIG_CMD_USB to enable the use of the usb commands from
> the u-boot command prompt. However, I am getting compilation errors:
> 
> drivers/usb/host/libusb_host.a(ehci-hcd.o): In function
> `usb_lowlevel_init': ehci-hcd.c:(.text+0x5d4): undefined reference to
> `ehci_hcd_init'
> drivers/usb/host/libusb_host.a(ehci-hcd.o): In function
> `usb_lowlevel_stop': ehci-hcd.c:(.text+0x850): undefined reference to
> `ehci_hcd_stop'
> make: *** [u-boot] Error 1

You also need to enable driver for your USB host controller.

> 
> Regards,
> Calvin Boyd
> 
> > From: marek.vasut at gmail.com
> > To: u-boot at lists.denx.de
> > Subject: Re: [U-Boot] Loading kernel from usb
> > Date: Sun, 25 Mar 2012 01:41:30 +0100
> > CC: calvin_boyd at hotmail.com
> > 
> > Dear Calvin Boyd,
> > 
> > > I am currently working on a project and I am trying to load the kernel
> > > from usb instead of an sd card.  How do you configure u-boot to
> > > support usb commands?
> > 
> > Why don't you attempt to please read the documentation first? Try
> > "CONFIG_CMD_USB" for starters.
> > 
> > Best regards,
> > Marek Vasut

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-03-26  2:04 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-03-24  0:30 [U-Boot] Loading kernel from usb Calvin Boyd
2012-03-25  0:41 ` Marek Vasut
     [not found]   ` <SNT112-W2847057EE6B19254BFBC479F450@phx.gbl>
2012-03-26  2:04     ` Marek Vasut

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox