> -----Original Message----- > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org] > Sent: Wednesday, February 15, 2012 10:31 AM > To: Liu Shengzhou-B36685 > Cc: Pavan Kondeti; linux-...@vger.kernel.org; linuxppc- > d...@lists.ozlabs.org > Subject: RE: [PATCH] powerpc/usb: fix issue of CPU halt when missing > USB PHY clock > > > > > > + if (!(in_be32(non_ehci + FSL_SOC_USB_CTRL) & > > > > +CTRL_PHY_CLK_VALID)) > > > { > > > > + printk(KERN_WARNING "fsl-ehci: USB PHY clock > invalid\n"); > > > > + return -1; > > > > > > Please return a proper error code. -ENODEV ? > > > > [Shengzhou] Ok, updated in v2, thanks. > > > > > Note that I just got a p5020ds from FSL, and with it's default > configuration, when I build & boot current upstream with FSL USB > support (64-bit kernel) it hangs when initializing USB. > > With or without this patch. > > It complains about invalid dr-mode (there's two USB nodes in the .dts > coming from uboot, an "mph" and "dr", the former has no dr-mode > property in the device-tree. > > Is the current kernel incompatible with old device-tree's ? (that would > be a shame...) > > Cheers, > Ben. > > Looks like there is a bug, please try to add the patch http://patchwork.ozlabs.org/patch/141558 -Shengzhou
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