USB: fix PS3 EHCI systems

After commit aaa0ef289afe9186f81e2340114ea413eef0492a "PS3 EHCI QH
read work-around", Terratec Grabby (em28xx) stopped working with AMD
Geode LX 800 (USB controller AMD CS5536). Since this is a PS3 only
fix, the following patch adds a conditional block around it.

Signed-off-by: Ricardo Martins <rasm@fe.up.pt>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b100f5f9f4b63a3b9ad75f2cb39341109a14cf28..800be38c78b47f5d7990243bc71bd8fb14c2bdc6 100644 (file)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -671,7 +671,9 @@ static int ehci_init(struct usb_hcd *hcd)
        hw = ehci->async->hw;
        hw->hw_next = QH_NEXT(ehci, ehci->async->qh_dma);
        hw->hw_info1 = cpu_to_hc32(ehci, QH_HEAD);
+#if defined(CONFIG_PPC_PS3)
        hw->hw_info1 |= cpu_to_hc32(ehci, (1 << 7));    /* I = 1 */
+#endif
        hw->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT);
        hw->hw_qtd_next = EHCI_LIST_END(ehci);
        ehci->async->qh_state = QH_STATE_LINKED;