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--- a/drivers/usb/host/ehci-q.c
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+++ b/drivers/usb/host/ehci-q.c
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@@ -1127,6 +1127,9 @@ static void end_unlink_async (struct ehc
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ehci->reclaim = NULL;
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start_unlink_async (ehci, next);
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}
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+
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+ if (ehci->has_synopsys_hc_bug)
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+ writel((u32)ehci->async->qh_dma, &ehci->regs->async_next);
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}
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/* makes sure the async qh will become idle */
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--- a/drivers/usb/host/ehci.h
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+++ b/drivers/usb/host/ehci.h
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@@ -125,6 +125,7 @@ struct ehci_hcd { /* one per controlle
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unsigned big_endian_mmio:1;
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unsigned big_endian_desc:1;
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unsigned has_amcc_usb23:1;
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+ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
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/* required for usb32 quirk */
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#define OHCI_CTRL_HCFS (3 << 6)
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