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