[U-Boot] [PATCH 4/4] arm: pxa: update LP-8x4x to boot DTS kernel

[Marek Vasut]

On Sunday, December 15, 2013 at 07:56:35 PM, Sergei Ianovich wrote:
> On Sun, 2013-12-15 at 16:06 +0100, Marek Vasut wrote:
> > On Sunday, December 15, 2013 at 10:57:55 AM, Sergei Ianovich wrote:
> > > After a clean rebuild, U-Boot with both OF_LIBFDT and CMD_USB, but
> > > without SYS_LONGHELP is under 256 kiB. I won't disable USB. Instead,
> > > I'll try to make it actually work.
> 
> While testing, I've run into an issue with USB support. If I do
> 
> 	$ usb start
> 
> in U-Boot, not only it doesn't see an attached flash storage, but also
> it break USB in the kernel. If I just boot the kernel from flash or
> tftp, USB works in the kernel.

The OHCI controller is not properly shut down before booting kernel, that's what 
I'd check first.

> I've verified that my usb_board_init() is exactly the same sequence of
> commands, that the kernel uses to initialize the stack up to
> usb_add_hcd() at linux/drivers/usb/host/ohci-pxa27x.c:445
> 
> I suspect the issue is in U-Boot OHCI PXA driver. Are you aware of any?

No, not really. I didn't use the OHCI stuff for a while.

> It probably makes sense to disable USB at LP-8x4 for now.

Can you maybe try debugging it please ?

Best regards,
Marek Vasut