ArmPlatformPkg/ArmVExpressPkg/ArmVExpressDxe/ArmFvpDxe.c

   1 /** @file
   2
   3   Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
   4
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include <Library/UefiLib.h>
  16 #include <Library/VirtioMmioDeviceLib.h>
  17 #include <Library/DebugLib.h>
  18 #include <Library/UefiBootServicesTableLib.h>
  19
  20 #define ARM_FVP_BASE_VIRTIO_BLOCK_BASE    0x1c130000
  21
  22 #pragma pack(1)
  23 typedef struct {
  24   VENDOR_DEVICE_PATH                  Vendor;
  25   EFI_DEVICE_PATH_PROTOCOL            End;
  26 } VIRTIO_BLK_DEVICE_PATH;
  27 #pragma pack()
  28
  29 VIRTIO_BLK_DEVICE_PATH mVirtioBlockDevicePath =
  30 {
  31   {
  32     {
  33       HARDWARE_DEVICE_PATH,
  34       HW_VENDOR_DP,
  35       {
  36         (UINT8)( sizeof(VENDOR_DEVICE_PATH) ),
  37         (UINT8)((sizeof(VENDOR_DEVICE_PATH)) >> 8)
  38       }
  39     },
  40     EFI_CALLER_ID_GUID,
  41   },
  42   {
  43     END_DEVICE_PATH_TYPE,
  44     END_ENTIRE_DEVICE_PATH_SUBTYPE,
  45     {
  46       sizeof (EFI_DEVICE_PATH_PROTOCOL),
  47       0
  48     }
  49   }
  50 };
  51
  52 EFI_STATUS
  53 EFIAPI
  54 ArmFvpInitialise (
  55   IN EFI_HANDLE         ImageHandle,
  56   IN EFI_SYSTEM_TABLE   *SystemTable
  57   )
  58 {
  59   EFI_STATUS              Status;
  60
  61   Status = gBS->InstallProtocolInterface (&ImageHandle,
  62                  &gEfiDevicePathProtocolGuid, EFI_NATIVE_INTERFACE,
  63                  &mVirtioBlockDevicePath);
  64   if (EFI_ERROR (Status)) {
  65     return Status;
  66   }
  67
  68   // Declare the Virtio BlockIo device
  69   Status = VirtioMmioInstallDevice (ARM_FVP_BASE_VIRTIO_BLOCK_BASE, ImageHandle);
  70   if (EFI_ERROR (Status)) {
  71     DEBUG ((EFI_D_ERROR, "ArmFvpDxe: Failed to install Virtio block device\n"));
  72   }
  73
  74   return Status;
  75 }