linux-kernel - [PATCH 6/6] ce4100: Add support for CE4100 EHCI IP block to EHCI driver

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Message-Id: <3b35daeb1bbc42f758e3407a8b28d21dd999c5d9.1289331834.git.dirk.brandewie@gmail.com>
Date:	Tue,  9 Nov 2010 12:08:09 -0800
From:	dirk.brandewie@...il.com
To:	linux-kernel@...r.kernel.org
Cc:	Dirk Brandewie <dirk.brandewie@...il.com>, x86@...nel.org,
	linux-usb@...r.kernel.org,
	David Brownell <dbrownell@...rs.sourceforge.net>
Subject: [PATCH 6/6] ce4100: Add support for CE4100 EHCI IP block to EHCI driver

From: Dirk Brandewie <dirk.brandewie@...il.com>

This patch adds support for the EHCI IP block present on the Intel
CE4100.

Signed-off-by: Dirk Brandewie <dirk.brandewie@...il.com>
CC: linux-usb@...r.kernel.org
CC: David Brownell <dbrownell@...rs.sourceforge.net>
---
 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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