From: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
This patch adds support for the EHCI IP block present on the Intel
CE4100.
Signed-off-by: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
CC: linux-usb@xxxxxxxxxxxxxxx
CC: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ehci-pci.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index a1e8d27..56c78e9 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -22,6 +22,9 @@
#error "This file is PCI bus glue. CONFIG_PCI must be defined."
#endif
+/* defined here to avoid adding to pci_ids.h for single instance use */
+#define PCI_DEVICE_ID_INTEL_CE4100_USB 0x2e70
+
/*-------------------------------------------------------------------------*/
/* called after powerup, by probe or system-pm "wakeup" */
@@ -124,6 +127,10 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
ehci_info(ehci, "disable lpm for langwell/penwell\n");
ehci->has_lpm = 0;
}
+ if (pdev->device == PCI_DEVICE_ID_INTEL_CE4100_USB) {
+ hcd->has_tt = 1;
+ tdi_reset(ehci);
+ }
break;
case PCI_VENDOR_ID_TDI:
if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
--
1.7.2.3
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