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