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authorRicardo Martins <rasm@fe.up.pt>2012-05-22 18:02:03 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-06-13 17:24:54 -0700
commit4f7a67e2dd49fbfba002c453bc24bf00e701cc71 (patch)
tree4249a2fa86b43e5a3659c0df26e3fe8fd1e37f63
parent57e04bdb3ea67d9e2e58b412eb21772188467df4 (diff)
downloadblackbird-op-linux-4f7a67e2dd49fbfba002c453bc24bf00e701cc71.tar.gz
blackbird-op-linux-4f7a67e2dd49fbfba002c453bc24bf00e701cc71.zip
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>
-rw-r--r--drivers/usb/host/ehci-hcd.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b100f5f9f4b6..800be38c78b4 100644
--- 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;
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