On Fri, Feb 20, 2009 at 11:50:44AM -0700, Gary Thomas wrote:
> Felipe Balbi wrote:
> > On Fri, Feb 20, 2009 at 11:15:36AM -0700, Gary Thomas wrote:
> >> I have a 3530 board (similar to the OMAP3EVM) and I'm trying
> >> to get the USB host working. Sadly, this is failing, but I
> >> don't quite see why. From drivers/usb/host/echi-omap.c:
> >> /* Wait for TLL to be Active */
> >> timeout = 1000;
> >> while ((cm_read_mod_reg(CORE_MOD, OMAP2430_CM_IDLEST3)
> >> & (1 << OMAP3430ES2_ST_USBTLL_SHIFT)))
> >> {
> >> if (--timeout <= 0) {
> >> printk(KERN_ERR "USB TLL is unavailable\n");
> >> return -ENODEV;
> >> }
> >> cpu_relax();
> >> }
> >>
> >> Any clues on why this might be? How do I solve it?
> >
> > could you enable CONFIG_DEBUG_LL and post the seria console output ?
> >
> > do you really use TLL ?? I don't really know omap3evm, but I guess it
> > uses PHY mode (correct me if I'm wrong).
> >
>
> It's not that I _need_ TLL, the driver function omap_start_ehci()
> tries to reset the part of the USB controller and fails. I'm just
> trying to understand why this part of the code falls over.
you have OMAP_EHCI_TLL_MODE set, you should probably use
OMAP_EHCI_PHY_MODE instead.
You can fix it via "make menuconfig"
--
balbi
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