ArmPkg: Add ARM Architectural Timer support

ARM Architectural Timer support is defined by the ARM Generic Timer Specification.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12455 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Include/Chipset/ArmV7.h

@@ -17,6 +17,7 @@
 #define __ARM_V7_H__
 
 #include <Chipset/ArmV7Mmu.h>
+#include <Chipset/ArmV7ArchTimer.h>
 
 // Domain Access Control Register
 #define DOMAIN_ACCESS_CONTROL_MASK(a)     (3UL << (2 * (a)))
@@ -80,6 +81,12 @@ ArmWriteTpidrurw (
   UINTN Value
   );
 
+UINTN
+EFIAPI
+ArmIsArchTimerImplemented (
+  VOID
+  );
+
 UINTN
 EFIAPI
 ArmReadIdPfr1 (

ArmPkg/Include/Chipset/ArmV7ArchTimer.h

@@ -0,0 +1,138 @@
+/** @file
+*
+*  Copyright (c) 2011, ARM Limited. All rights reserved.
+*  
+*  This program and the accompanying materials                          
+*  are licensed and made available under the terms and conditions of the BSD License         
+*  which accompanies this distribution.  The full text of the license may be found at        
+*  http://opensource.org/licenses/bsd-license.php                                            
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+*
+**/
+
+#ifndef __ARMV7_ARCH_TIMER_H_
+#define __ARMV7_ARCH_TIMER_H_
+
+UINTN
+EFIAPI
+ArmReadCntFrq (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntFrq (
+  UINTN   FreqInHz
+  );
+
+UINT64
+EFIAPI
+ArmReadCntPct (
+  VOID
+  );
+
+UINTN
+EFIAPI
+ArmReadCntkCtl (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntkCtl (
+  UINTN   Val
+  );
+
+UINTN
+EFIAPI
+ArmReadCntpTval (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntpTval (
+  UINTN   Val
+  );
+
+UINTN
+EFIAPI
+ArmReadCntpCtl (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntpCtl (
+  UINTN   Val
+  );
+
+UINTN
+EFIAPI
+ArmReadCntvTval (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntvTval (
+  UINTN   Val
+  );
+
+UINTN
+EFIAPI
+ArmReadCntvCtl (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntvCtl (
+  UINTN   Val
+  );
+
+UINT64
+EFIAPI
+ArmReadCntvCt (
+  VOID
+  );
+
+UINT64
+EFIAPI
+ArmReadCntpCval (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntpCval (
+  UINT64   Val
+  );
+
+UINT64
+EFIAPI
+ArmReadCntvCval (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntvCval (
+  UINT64   Val
+  );
+
+UINT64
+EFIAPI
+ArmReadCntvOff (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCntvOff (
+  UINT64   Val
+  );
+
+#endif

ArmPkg/Include/Library/ArmLib.h

@@ -167,7 +167,7 @@ Cp15CacheInfo (
 
 BOOLEAN
 EFIAPI
-ArmIsMPCore (
+ArmIsMpCore (
   VOID
   );
 

ArmPkg/Include/Library/ArmV7ArchTimerLib.h

@@ -0,0 +1,115 @@
+/** @file
+
+  Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __ARM_V7_ARCH_TIMER_LIB_H__
+#define __ARM_V7_ARCH_TIMER_LIB_H__
+
+#define ARM_ARCH_TIMER_ENABLE           (1 << 0)
+#define ARM_ARCH_TIMER_IMASK            (1 << 1)
+#define ARM_ARCH_TIMER_ISTATUS          (1 << 2)
+
+typedef enum {
+  CntFrq = 0,
+  CntPct,
+  CntkCtl,
+  CntpTval,
+  CntpCtl,
+  CntvTval,
+  CntvCtl,
+  CntvCt,
+  CntpCval,
+  CntvCval,
+  CntvOff,
+  CnthCtl,
+  CnthpTval,
+  CnthpCtl,
+  CnthpCval,
+  RegMaximum
+}ARM_ARCH_TIMER_REGS;
+
+VOID
+EFIAPI
+ArmArchTimerReadReg (
+  IN   ARM_ARCH_TIMER_REGS   Reg,
+  OUT  VOID                  *DstBuf
+  );
+
+VOID
+EFIAPI
+ArmArchTimerWriteReg (
+  IN   ARM_ARCH_TIMER_REGS   Reg,
+  IN   VOID                  *SrcBuf
+  );
+
+VOID
+EFIAPI
+ArmArchTimerEnableTimer (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmArchTimerDisableTimer (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmArchTimerSetTimerFreq (
+  IN   UINTN  FreqInHz
+  );
+
+UINTN
+EFIAPI
+ArmArchTimerGetTimerFreq (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmArchTimerSetTimerVal (
+  IN   UINTN   Val
+  );
+
+UINTN
+EFIAPI
+ArmArchTimerGetTimerVal (
+  VOID
+  );
+
+UINT64
+EFIAPI
+ArmArchTimerGetSystemCount (
+  VOID
+  );
+
+UINTN
+EFIAPI
+ArmArchTimerGetTimerCtrlReg (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmArchTimerSetTimerCtrlReg (
+  UINTN Val
+  );
+
+VOID
+EFIAPI
+ArmArchTimerSetCompareVal (
+  IN   UINT64   Val
+  );
+
+#endif // __ARM_V7_ARCH_TIMER_LIB_H__