USB: ehci-orion: Call ehci_reset before ehci_halt
I noticed that USB initialization didn't setup correctly on my kirkwood based board (OpenRD base) if I hadn't initialized USB in U-boot first. The error message looks like this: ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver orion-ehci orion-ehci.0: Marvell Orion EHCI orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1 orion-ehci orion-ehci.0: can't setup orion-ehci orion-ehci.0: USB bus 1 deregistered orion-ehci orion-ehci.0: init orion-ehci.0 fail, -110 orion-ehci: probe of orion-ehci.0 failed with error -110 which is caused by ehci_halt() timing out in the handshake() call. I noticed that U-boot does a reset before calling handshake(), so this patch does the same thing for Linux. USB now works for me. Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net> Acked-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -105,6 +105,7 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
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struct ehci_hcd *ehci = hcd_to_ehci(hcd);
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int retval;
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ehci_reset(ehci);
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retval = ehci_halt(ehci);
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if (retval)
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return retval;
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@ -118,7 +119,6 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
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hcd->has_tt = 1;
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ehci_reset(ehci);
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ehci_port_power(ehci, 0);
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return retval;
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