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      1 /** @file
      2 *
      3 *  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
      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 <Uefi.h>
     16 #include <Library/IoLib.h>
     17 #include <Library/ArmGicLib.h>
     18 
     19 
     20 VOID
     21 EFIAPI
     22 ArmGicV2EnableInterruptInterface (
     23   IN  INTN          GicInterruptInterfaceBase
     24   )
     25 {
     26   /*
     27   * Enable the CPU interface in Non-Secure world
     28   * Note: The ICCICR register is banked when Security extensions are implemented
     29   */
     30   MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR, 0x1);
     31 }
     32 
     33 VOID
     34 EFIAPI
     35 ArmGicV2DisableInterruptInterface (
     36   IN  INTN          GicInterruptInterfaceBase
     37   )
     38 {
     39   // Disable Gic Interface
     40   MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR, 0x0);
     41   MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCPMR, 0x0);
     42 }
     43