target/linux/ar71xx/patches-2.6.30/110-usb-ehci-add-war-for-synopsys-hc-bug.patch

   1 --- a/drivers/usb/host/ehci-q.c
   2 +++ b/drivers/usb/host/ehci-q.c
   3 @@ -1082,6 +1082,9 @@ static void end_unlink_async (struct ehc
   4                 ehci->reclaim = NULL;
   5                 start_unlink_async (ehci, next);
   6         }
   7 +
   8 +       if (ehci->has_synopsys_hc_bug)
   9 +               writel((u32)ehci->async->qh_dma, &ehci->regs->async_next);
  10  }
  11
  12  /* makes sure the async qh will become idle */
  13 --- a/drivers/usb/host/ehci.h
  14 +++ b/drivers/usb/host/ehci.h
  15 @@ -125,6 +125,7 @@ struct ehci_hcd {                   /* one per controlle
  16         unsigned                big_endian_mmio:1;
  17         unsigned                big_endian_desc:1;
  18         unsigned                has_amcc_usb23:1;
  19 +       unsigned                has_synopsys_hc_bug:1; /* Synopsys HC */
  20
  21         /* required for usb32 quirk */
  22         #define OHCI_CTRL_HCFS          (3 << 6)