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[edk2-devel] [PATCH edk2-platforms v2 5/7] Platform/RaspberryPi4: Register GENET platform device protocol

Ard Biesheuvel posted 7 patches 5 years, 9 months ago
There is a newer version of this series
[edk2-devel] [PATCH edk2-platforms v2 5/7] Platform/RaspberryPi4: Register GENET platform device protocol
Posted by Ard Biesheuvel 5 years, 9 months ago 
Register an event at EndOfDxe to instantiate the EFI device path protocol
with the GENET MAC address on a new handle, and install the
BcmGenetPlatformDeviceProtocol on that handle. This protocol is used to
pass platform information (GENET MAC address and register base address)
to the GENET driver, which will consume this in its implementation of the
UEFI driver model Supported/Start/Stop methods.

Co-authored-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
Co-authored-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Co-authored-by: Andrei Warkentin <awarkentin@vmware.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
---
 Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf |  29 ++++--
 Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c   | 108 ++++++++++++++++++--
 2 files changed, 117 insertions(+), 20 deletions(-)

diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
index e47f3af69199..f20f3bcc1243 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
@@ -1,6 +1,8 @@
 #/** @file
 #
-#  Copyright (c) 2019, ARM Limited. All rights reserved.
+#  Component description file for the RasbperryPi DXE platform config driver.
+#
+#  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
 #  Copyright (c) 2018, Andrei Warkentin <andrey.warkentin@gmail.com>
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -21,7 +23,6 @@ [Defines]
 #
 #  VALID_ARCHITECTURES           = AARCH64
 #
-
 [Sources]
   ConfigDxe.c
   ConfigDxeFormSetGuid.h
@@ -31,31 +32,36 @@ [Sources]
 [Packages]
   ArmPkg/ArmPkg.dec
   ArmPlatformPkg/ArmPlatformPkg.dec
-  MdePkg/MdePkg.dec
+  EmbeddedPkg/EmbeddedPkg.dec
   MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+  NetworkPkg/NetworkPkg.dec
+  Platform/RaspberryPi/RaspberryPi.dec
   Silicon/Broadcom/Bcm27xx/Bcm27xx.dec
   Silicon/Broadcom/Bcm283x/Bcm283x.dec
-  Platform/RaspberryPi/RaspberryPi.dec
-  EmbeddedPkg/EmbeddedPkg.dec
+  Silicon/Broadcom/Drivers/Net/BcmNet.dec
 
 [LibraryClasses]
+  AcpiLib
   BaseLib
   DebugLib
   DxeServicesTableLib
+  GpioLib
+  HiiLib
+  NetLib
   PcdLib
   UefiBootServicesTableLib
-  UefiRuntimeServicesTableLib
   UefiDriverEntryPoint
-  HiiLib
-  GpioLib
-  AcpiLib
+  UefiRuntimeServicesTableLib
 
 [Guids]
   gConfigDxeFormSetGuid
+  gEfiEndOfDxeEventGroupGuid
 
 [Protocols]
-  gRaspberryPiFirmwareProtocolGuid      ## CONSUMES
-  gRaspberryPiConfigAppliedProtocolGuid ## PRODUCES
+  gBcmGenetPlatformDeviceProtocolGuid             ## PRODUCES
+  gRaspberryPiFirmwareProtocolGuid                ## CONSUMES
+  gRaspberryPiConfigAppliedProtocolGuid           ## PRODUCES
 
 [FixedPcd]
   gRaspberryPiTokenSpaceGuid.PcdCpuLowSpeedMHz
@@ -64,6 +70,7 @@ [FixedPcd]
 
 [Pcd]
   gBcm27xxTokenSpaceGuid.PcdBcm27xxRegistersAddress
+  gBcm27xxTokenSpaceGuid.PcdBcmGenetRegistersAddress
   gBcm283xTokenSpaceGuid.PcdBcm283xRegistersAddress
   gRaspberryPiTokenSpaceGuid.PcdCpuClock
   gRaspberryPiTokenSpaceGuid.PcdCustomCpuClock
diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
index 00867879da20..47ca0a89a3d8 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
@@ -1,6 +1,6 @@
 /** @file
  *
- *  Copyright (c) 2019, ARM Limited. All rights reserved.
+ *  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
  *  Copyright (c) 2018 - 2019, Andrei Warkentin <andrey.warkentin@gmail.com>
  *
  *  SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -8,19 +8,21 @@
  **/
 
 #include <Uefi.h>
+#include <IndustryStandard/Bcm2711.h>
+#include <IndustryStandard/Bcm2836.h>
+#include <IndustryStandard/Bcm2836Gpio.h>
+#include <IndustryStandard/RpiMbox.h>
 #include <Library/AcpiLib.h>
-#include <Library/HiiLib.h>
 #include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
 #include <Library/DxeServicesTableLib.h>
+#include <Library/GpioLib.h>
+#include <Library/HiiLib.h>
 #include <Library/IoLib.h>
+#include <Library/NetLib.h>
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/DevicePathLib.h>
-#include <IndustryStandard/RpiMbox.h>
-#include <IndustryStandard/Bcm2711.h>
-#include <IndustryStandard/Bcm2836.h>
-#include <IndustryStandard/Bcm2836Gpio.h>
-#include <Library/GpioLib.h>
+#include <Protocol/BcmGenetPlatformDevice.h>
 #include <Protocol/RpiFirmware.h>
 #include <ConfigVars.h>
 #include "ConfigDxeFormSetGuid.h"
@@ -34,6 +36,8 @@ STATIC RASPBERRY_PI_FIRMWARE_PROTOCOL *mFwProtocol;
 STATIC UINT32 mModelFamily = 0;
 STATIC UINT32 mModelInstalledMB = 0;
 
+STATIC EFI_MAC_ADDRESS  MacAddress;
+
 /*
  * The GUID inside Platform/RaspberryPi/RPi3/AcpiTables/AcpiTables.inf and
  * Platform/RaspberryPi/RPi4/AcpiTables/AcpiTables.inf _must_ match below.
@@ -47,6 +51,18 @@ typedef struct {
   EFI_DEVICE_PATH_PROTOCOL End;
 } HII_VENDOR_DEVICE_PATH;
 
+#pragma pack (1)
+typedef struct {
+  MAC_ADDR_DEVICE_PATH            MacAddrDP;
+  EFI_DEVICE_PATH_PROTOCOL        End;
+} GENET_DEVICE_PATH;
+
+typedef struct {
+  GENET_DEVICE_PATH                   DevicePath;
+  BCM_GENET_PLATFORM_DEVICE_PROTOCOL  PlatformDevice;
+} GENET_DEVICE;
+#pragma pack ()
+
 STATIC HII_VENDOR_DEVICE_PATH mVendorDevicePath = {
   {
     {
@@ -69,6 +85,65 @@ STATIC HII_VENDOR_DEVICE_PATH mVendorDevicePath = {
   }
 };
 
+STATIC GENET_DEVICE mGenetDevice = {
+  {
+    {
+      {
+        MESSAGING_DEVICE_PATH,
+        MSG_MAC_ADDR_DP,
+        {
+          (UINT8)(sizeof (MAC_ADDR_DEVICE_PATH)),
+          (UINT8)((sizeof (MAC_ADDR_DEVICE_PATH)) >> 8)
+        }
+      },
+      {{ 0 }},
+      NET_IFTYPE_ETHERNET
+    },
+    {
+      END_DEVICE_PATH_TYPE,
+      END_ENTIRE_DEVICE_PATH_SUBTYPE,
+      {
+        sizeof (EFI_DEVICE_PATH_PROTOCOL),
+        0
+      }
+    }
+  },
+  {
+    GENET_BASE_ADDRESS,
+    {{ 0 }}
+  }
+};
+
+
+STATIC
+VOID
+EFIAPI
+RegisterDevices (
+  EFI_EVENT           Event,
+  VOID                *Context
+  )
+{
+  EFI_HANDLE  Handle;
+  EFI_STATUS  Status;
+
+  if (mModelFamily == 4) {
+    DEBUG ((DEBUG_INFO, "GENET: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
+            MacAddress.Addr[0], MacAddress.Addr[1], MacAddress.Addr[2],
+            MacAddress.Addr[3], MacAddress.Addr[4], MacAddress.Addr[5]));
+
+    CopyMem (&mGenetDevice.DevicePath.MacAddrDP.MacAddress, MacAddress.Addr,
+      NET_ETHER_ADDR_LEN);
+    CopyMem (&mGenetDevice.PlatformDevice.MacAddress, MacAddress.Addr,
+      NET_ETHER_ADDR_LEN);
+
+    Handle = NULL;
+    Status = gBS->InstallMultipleProtocolInterfaces (&Handle,
+                    &gEfiDevicePathProtocolGuid,          &mGenetDevice.DevicePath,
+                    &gBcmGenetPlatformDeviceProtocolGuid, &mGenetDevice.PlatformDevice,
+                    NULL);
+    ASSERT_EFI_ERROR (Status);
+  }
+}
 
 STATIC EFI_STATUS
 InstallHiiPages (
@@ -242,6 +317,16 @@ SetupVariables (
     PcdSet32 (PcdDisplayEnableSShot, PcdGet32 (PcdDisplayEnableSShot));
   }
 
+  if (mModelFamily == 4) {
+    //
+    // Get the MAC address from the firmware.
+    //
+    Status = mFwProtocol->GetMacAddress (MacAddress.Addr);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_WARN, "%a: failed to retrieve MAC address\n", __FUNCTION__));
+    }
+  }
+
   return EFI_SUCCESS;
 }
 
@@ -448,7 +533,8 @@ ConfigInitialize (
   IN EFI_SYSTEM_TABLE *SystemTable
   )
 {
-  EFI_STATUS Status;
+  EFI_STATUS                      Status;
+  EFI_EVENT                       EndOfDxeEvent;
 
   Status = gBS->LocateProtocol (&gRaspberryPiFirmwareProtocolGuid,
                   NULL, (VOID**)&mFwProtocol);
@@ -494,5 +580,9 @@ ConfigInitialize (
      ASSERT_EFI_ERROR (Status);
   }
 
+  Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_NOTIFY, RegisterDevices,
+                  NULL, &gEfiEndOfDxeEventGroupGuid, &EndOfDxeEvent);
+  ASSERT_EFI_ERROR (Status);
+
   return EFI_SUCCESS;
 }
-- 
2.17.1


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Re: [edk2-devel] [PATCH edk2-platforms v2 5/7] Platform/RaspberryPi4: Register GENET platform device protocol
Posted by Leif Lindholm 5 years, 9 months ago 
On Tue, May 12, 2020 at 09:55:10 +0200, Ard Biesheuvel wrote:
> Register an event at EndOfDxe to instantiate the EFI device path protocol
> with the GENET MAC address on a new handle, and install the
> BcmGenetPlatformDeviceProtocol on that handle. This protocol is used to
> pass platform information (GENET MAC address and register base address)
> to the GENET driver, which will consume this in its implementation of the
> UEFI driver model Supported/Start/Stop methods.
> 
> Co-authored-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
> Co-authored-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
> Co-authored-by: Andrei Warkentin <awarkentin@vmware.com>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
> ---
>  Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf |  29 ++++--
>  Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c   | 108 ++++++++++++++++++--
>  2 files changed, 117 insertions(+), 20 deletions(-)
> 
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> index e47f3af69199..f20f3bcc1243 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf
> @@ -1,6 +1,8 @@
>  #/** @file
>  #
> -#  Copyright (c) 2019, ARM Limited. All rights reserved.
> +#  Component description file for the RasbperryPi DXE platform config driver.
> +#
> +#  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
>  #  Copyright (c) 2018, Andrei Warkentin <andrey.warkentin@gmail.com>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
> @@ -21,7 +23,6 @@ [Defines]
>  #
>  #  VALID_ARCHITECTURES           = AARCH64
>  #
> -
>  [Sources]
>    ConfigDxe.c
>    ConfigDxeFormSetGuid.h
> @@ -31,31 +32,36 @@ [Sources]
>  [Packages]
>    ArmPkg/ArmPkg.dec
>    ArmPlatformPkg/ArmPlatformPkg.dec
> -  MdePkg/MdePkg.dec
> +  EmbeddedPkg/EmbeddedPkg.dec
>    MdeModulePkg/MdeModulePkg.dec
> +  MdePkg/MdePkg.dec
> +  NetworkPkg/NetworkPkg.dec
> +  Platform/RaspberryPi/RaspberryPi.dec
>    Silicon/Broadcom/Bcm27xx/Bcm27xx.dec
>    Silicon/Broadcom/Bcm283x/Bcm283x.dec
> -  Platform/RaspberryPi/RaspberryPi.dec
> -  EmbeddedPkg/EmbeddedPkg.dec
> +  Silicon/Broadcom/Drivers/Net/BcmNet.dec
>  
>  [LibraryClasses]
> +  AcpiLib
>    BaseLib
>    DebugLib
>    DxeServicesTableLib
> +  GpioLib
> +  HiiLib
> +  NetLib
>    PcdLib
>    UefiBootServicesTableLib
> -  UefiRuntimeServicesTableLib
>    UefiDriverEntryPoint
> -  HiiLib
> -  GpioLib
> -  AcpiLib
> +  UefiRuntimeServicesTableLib

The cleanup is good, but could we separate functional and
non-functional changes into separate patches?

>  
>  [Guids]
>    gConfigDxeFormSetGuid
> +  gEfiEndOfDxeEventGroupGuid
>  
>  [Protocols]
> -  gRaspberryPiFirmwareProtocolGuid      ## CONSUMES
> -  gRaspberryPiConfigAppliedProtocolGuid ## PRODUCES
> +  gBcmGenetPlatformDeviceProtocolGuid             ## PRODUCES
> +  gRaspberryPiFirmwareProtocolGuid                ## CONSUMES
> +  gRaspberryPiConfigAppliedProtocolGuid           ## PRODUCES
>  
>  [FixedPcd]
>    gRaspberryPiTokenSpaceGuid.PcdCpuLowSpeedMHz
> @@ -64,6 +70,7 @@ [FixedPcd]
>  
>  [Pcd]
>    gBcm27xxTokenSpaceGuid.PcdBcm27xxRegistersAddress
> +  gBcm27xxTokenSpaceGuid.PcdBcmGenetRegistersAddress
>    gBcm283xTokenSpaceGuid.PcdBcm283xRegistersAddress
>    gRaspberryPiTokenSpaceGuid.PcdCpuClock
>    gRaspberryPiTokenSpaceGuid.PcdCustomCpuClock
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> index 00867879da20..47ca0a89a3d8 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> @@ -1,6 +1,6 @@
>  /** @file
>   *
> - *  Copyright (c) 2019, ARM Limited. All rights reserved.
> + *  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
>   *  Copyright (c) 2018 - 2019, Andrei Warkentin <andrey.warkentin@gmail.com>
>   *
>   *  SPDX-License-Identifier: BSD-2-Clause-Patent
> @@ -8,19 +8,21 @@
>   **/
>  
>  #include <Uefi.h>
> +#include <IndustryStandard/Bcm2711.h>
> +#include <IndustryStandard/Bcm2836.h>
> +#include <IndustryStandard/Bcm2836Gpio.h>
> +#include <IndustryStandard/RpiMbox.h>
>  #include <Library/AcpiLib.h>
> -#include <Library/HiiLib.h>
>  #include <Library/DebugLib.h>
> +#include <Library/DevicePathLib.h>
>  #include <Library/DxeServicesTableLib.h>
> +#include <Library/GpioLib.h>
> +#include <Library/HiiLib.h>
>  #include <Library/IoLib.h>
> +#include <Library/NetLib.h>
>  #include <Library/UefiBootServicesTableLib.h>
>  #include <Library/UefiRuntimeServicesTableLib.h>
> -#include <Library/DevicePathLib.h>
> -#include <IndustryStandard/RpiMbox.h>
> -#include <IndustryStandard/Bcm2711.h>
> -#include <IndustryStandard/Bcm2836.h>
> -#include <IndustryStandard/Bcm2836Gpio.h>
> -#include <Library/GpioLib.h>
> +#include <Protocol/BcmGenetPlatformDevice.h>
>  #include <Protocol/RpiFirmware.h>
>  #include <ConfigVars.h>
>  #include "ConfigDxeFormSetGuid.h"
> @@ -34,6 +36,8 @@ STATIC RASPBERRY_PI_FIRMWARE_PROTOCOL *mFwProtocol;
>  STATIC UINT32 mModelFamily = 0;
>  STATIC UINT32 mModelInstalledMB = 0;
>  
> +STATIC EFI_MAC_ADDRESS  MacAddress;

m-prefix on global variable?

/
    Leif

> +
>  /*
>   * The GUID inside Platform/RaspberryPi/RPi3/AcpiTables/AcpiTables.inf and
>   * Platform/RaspberryPi/RPi4/AcpiTables/AcpiTables.inf _must_ match below.
> @@ -47,6 +51,18 @@ typedef struct {
>    EFI_DEVICE_PATH_PROTOCOL End;
>  } HII_VENDOR_DEVICE_PATH;
>  
> +#pragma pack (1)
> +typedef struct {
> +  MAC_ADDR_DEVICE_PATH            MacAddrDP;
> +  EFI_DEVICE_PATH_PROTOCOL        End;
> +} GENET_DEVICE_PATH;
> +
> +typedef struct {
> +  GENET_DEVICE_PATH                   DevicePath;
> +  BCM_GENET_PLATFORM_DEVICE_PROTOCOL  PlatformDevice;
> +} GENET_DEVICE;
> +#pragma pack ()
> +
>  STATIC HII_VENDOR_DEVICE_PATH mVendorDevicePath = {
>    {
>      {
> @@ -69,6 +85,65 @@ STATIC HII_VENDOR_DEVICE_PATH mVendorDevicePath = {
>    }
>  };
>  
> +STATIC GENET_DEVICE mGenetDevice = {
> +  {
> +    {
> +      {
> +        MESSAGING_DEVICE_PATH,
> +        MSG_MAC_ADDR_DP,
> +        {
> +          (UINT8)(sizeof (MAC_ADDR_DEVICE_PATH)),
> +          (UINT8)((sizeof (MAC_ADDR_DEVICE_PATH)) >> 8)
> +        }
> +      },
> +      {{ 0 }},
> +      NET_IFTYPE_ETHERNET
> +    },
> +    {
> +      END_DEVICE_PATH_TYPE,
> +      END_ENTIRE_DEVICE_PATH_SUBTYPE,
> +      {
> +        sizeof (EFI_DEVICE_PATH_PROTOCOL),
> +        0
> +      }
> +    }
> +  },
> +  {
> +    GENET_BASE_ADDRESS,
> +    {{ 0 }}
> +  }
> +};
> +
> +
> +STATIC
> +VOID
> +EFIAPI
> +RegisterDevices (
> +  EFI_EVENT           Event,
> +  VOID                *Context
> +  )
> +{
> +  EFI_HANDLE  Handle;
> +  EFI_STATUS  Status;
> +
> +  if (mModelFamily == 4) {
> +    DEBUG ((DEBUG_INFO, "GENET: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
> +            MacAddress.Addr[0], MacAddress.Addr[1], MacAddress.Addr[2],
> +            MacAddress.Addr[3], MacAddress.Addr[4], MacAddress.Addr[5]));
> +
> +    CopyMem (&mGenetDevice.DevicePath.MacAddrDP.MacAddress, MacAddress.Addr,
> +      NET_ETHER_ADDR_LEN);
> +    CopyMem (&mGenetDevice.PlatformDevice.MacAddress, MacAddress.Addr,
> +      NET_ETHER_ADDR_LEN);
> +
> +    Handle = NULL;
> +    Status = gBS->InstallMultipleProtocolInterfaces (&Handle,
> +                    &gEfiDevicePathProtocolGuid,          &mGenetDevice.DevicePath,
> +                    &gBcmGenetPlatformDeviceProtocolGuid, &mGenetDevice.PlatformDevice,
> +                    NULL);
> +    ASSERT_EFI_ERROR (Status);
> +  }
> +}
>  
>  STATIC EFI_STATUS
>  InstallHiiPages (
> @@ -242,6 +317,16 @@ SetupVariables (
>      PcdSet32 (PcdDisplayEnableSShot, PcdGet32 (PcdDisplayEnableSShot));
>    }
>  
> +  if (mModelFamily == 4) {
> +    //
> +    // Get the MAC address from the firmware.
> +    //
> +    Status = mFwProtocol->GetMacAddress (MacAddress.Addr);
> +    if (EFI_ERROR (Status)) {
> +      DEBUG ((DEBUG_WARN, "%a: failed to retrieve MAC address\n", __FUNCTION__));
> +    }
> +  }
> +
>    return EFI_SUCCESS;
>  }
>  
> @@ -448,7 +533,8 @@ ConfigInitialize (
>    IN EFI_SYSTEM_TABLE *SystemTable
>    )
>  {
> -  EFI_STATUS Status;
> +  EFI_STATUS                      Status;
> +  EFI_EVENT                       EndOfDxeEvent;
>  
>    Status = gBS->LocateProtocol (&gRaspberryPiFirmwareProtocolGuid,
>                    NULL, (VOID**)&mFwProtocol);
> @@ -494,5 +580,9 @@ ConfigInitialize (
>       ASSERT_EFI_ERROR (Status);
>    }
>  
> +  Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_NOTIFY, RegisterDevices,
> +                  NULL, &gEfiEndOfDxeEventGroupGuid, &EndOfDxeEvent);
> +  ASSERT_EFI_ERROR (Status);
> +
>    return EFI_SUCCESS;
>  }
> -- 
> 2.17.1
> 

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