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 | 4 ++++
include/linux/pci_ids.h | 1 +
2 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index a1e8d27..724da36 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -124,6 +124,10 @@ 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) {
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 84f7130..7790f40 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2631,6 +2631,7 @@
#define PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_RANK_REV2 0x2db2
#define PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_TC_REV2 0x2db3
#define PCI_DEVICE_ID_INTEL_CE4100_UART 0x2e66
+#define PCI_DEVICE_ID_INTEL_CE4100_USB 0x2e70
#define PCI_DEVICE_ID_INTEL_82855PM_HB 0x3340
#define PCI_DEVICE_ID_INTEL_IOAT_TBG4 0x3429
#define PCI_DEVICE_ID_INTEL_IOAT_TBG5 0x342a
--
1.7.2.3
--
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