1 files changed, 77 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/LynxPoint/Usb/Pei/PchUsb.c b/ReferenceCode/Chipset/LynxPoint/Usb/Pei/PchUsb.c
new file mode 100644
index 0000000..493f5e6
--- /dev/null
+++ b/ReferenceCode/Chipset/LynxPoint/Usb/Pei/PchUsb.c
@@ -0,0 +1,77 @@
+/** @file
+  Pch Usb Pei Init
+
+@copyright
+  Copyright (c) 2009 - 2012 Intel Corporation. All rights reserved
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and uniquely
+  identified as "Intel Reference Module" and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+**/
+#include "PchUsb.h"
+
+/**
+  Initialize PCH USB PEIM
+
+  @param[in] FfsHeader            Not used.
+  @param[in] PeiServices          General purpose services available to every PEIM.
+
+  @retval EFI_SUCCESS             The PCH USB PEIM is initialized successfully
+  @retval Others                  All other error conditions encountered result in an ASSERT.
+**/
+EFI_STATUS
+InitializePchUsb (
+  IN EFI_FFS_FILE_HEADER       *FfsHeader,
+  IN EFI_PEI_SERVICES          **PeiServices
+  )
+{
+  EFI_STATUS          Status;
+  PCH_USB_POLICY_PPI  *UsbPolicyPpi;
+
+  DEBUG ((EFI_D_INFO, "InitializePchUsb() Start\n"));
+
+  ///
+  /// Locate UsbPolicy PPI
+  ///
+  Status = (**PeiServices).LocatePpi (
+                            PeiServices,
+                            &gPchUsbPolicyPpiGuid,
+                            0,
+                            NULL,
+                            (VOID **) &UsbPolicyPpi
+                            );
+  ASSERT_EFI_ERROR (Status);
+
+  if (Status == EFI_SUCCESS) {
+    ///
+    /// Enable USB controller and install PeiUsbControllerPpi for USB recovery function
+    ///
+    switch (UsbPolicyPpi->Mode) {
+    case EHCI_MODE:
+      DEBUG ((EFI_D_ERROR, "Usb Recovery Mode : EHCI !\n"));
+      DEBUG ((EFI_D_ERROR, "EhciMemBaseAddr:%0x!\n", UsbPolicyPpi->EhciMemBaseAddr));
+      DEBUG ((EFI_D_ERROR, "EhciMemLength:%0x!\n", UsbPolicyPpi->EhciMemLength));
+      InitForEHCI (PeiServices, UsbPolicyPpi);
+      break;
+
+    default:
+      ASSERT_EFI_ERROR (EFI_INVALID_PARAMETER);
+      break;
+    }
+  }
+
+  DEBUG ((EFI_D_INFO, "InitializePchUsb() End\n"));
+
+  return Status;
+
+}
+\ No newline at end of file