ArmPkg: Introduce ArmCpuLib to abstract ARM Cpu specific initialization (2)

Missed new files.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12450 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Drivers/ArmCpuLib/ArmCortexA9Lib/ArmCortexA9Helper.S

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+//
+//  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.
+//
+//
+
+#include <Library/ArmCpuLib.h>
+#include <Chipset/ArmCortexA9.h>
+
+.text
+.align 3
+
+GCC_ASM_EXPORT(ArmCpuSynchronizeWait)
+GCC_ASM_EXPORT(ArmGetScuBaseAddress)
+GCC_ASM_IMPORT(CArmCpuSynchronizeWait)
+
+// VOID
+// ArmCpuSynchronizeWait (
+//   IN ARM_CPU_SYNCHRONIZE_EVENT   Event
+//   );
+ASM_PFX(ArmCpuSynchronizeWait):
+  cmp   r0, #ARM_CPU_EVENT_BOOT_MEM_INIT
+  // The SCU enabled is the event to tell us the Init Boot Memory is initialized
+  beq   ArmWaitScuEnabled
+  b     CArmCpuSynchronizeWait
+
+// IN None
+// OUT r0 = SCU Base Address
+ASM_PFX(ArmGetScuBaseAddress):
+  // Read Configuration Base Address Register. ArmCBar cannot be called to get
+  // the Configuration BAR as a stack is not necessary setup. The SCU is at the
+  // offset 0x0000 from the Private Memory Region.
+  mrc   p15, 4, r0, c15, c0, 0
+  bx  lr
+
+ASM_PFX(ArmWaitScuEnabled):
+  // Read Configuration Base Address Register. ArmCBar cannot be called to get
+  // the Configuration BAR as a stack is not necessary setup. The SCU is at the
+  // offset 0x0000 from the Private Memory Region.
+  mrc   p15, 4, r0, c15, c0, 0
+  add   r0, r0, #A9_SCU_CONTROL_OFFSET
+  ldr   r0, [r0]
+  cmp   r0, #1
+  bne   ArmWaitScuEnabled
+  bx    lr

ArmPkg/Drivers/ArmCpuLib/ArmCortexA9Lib/ArmCortexA9Helper.asm

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+//
+//  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.
+//
+//
+
+#include <Library/ArmCpuLib.h>
+#include <Chipset/ArmCortexA9.h>
+
+  EXPORT  ArmCpuSynchronizeWait
+  EXPORT  ArmGetScuBaseAddress
+  IMPORT  CArmCpuSynchronizeWait
+
+  PRESERVE8
+  AREA    ArmCortexA9Helper, CODE, READONLY
+
+// VOID
+// ArmCpuSynchronizeWait (
+//   IN ARM_CPU_SYNCHRONIZE_EVENT   Event
+//   );
+ArmCpuSynchronizeWait
+  cmp   r0, #ARM_CPU_EVENT_BOOT_MEM_INIT
+  // The SCU enabled is the event to tell us the Init Boot Memory is initialized
+  beq   ArmWaitScuEnabled
+  b     CArmCpuSynchronizeWait
+
+// IN None
+// OUT r0 = SCU Base Address
+ArmGetScuBaseAddress
+  // Read Configuration Base Address Register. ArmCBar cannot be called to get
+  // the Configuration BAR as a stack is not necessary setup. The SCU is at the
+  // offset 0x0000 from the Private Memory Region.
+  mrc   p15, 4, r0, c15, c0, 0
+  bx  lr
+
+ArmWaitScuEnabled
+  // Read Configuration Base Address Register. ArmCBar cannot be called to get
+  // the Configuration BAR as a stack is not necessary setup. The SCU is at the
+  // offset 0x0000 from the Private Memory Region.
+  mrc   p15, 4, r0, c15, c0, 0
+  add   r0, r0, #A9_SCU_CONTROL_OFFSET
+  ldr   r0, [r0]
+  cmp   r0, #1
+  bne   ArmWaitScuEnabled
+  bx    lr
+
+  END

ArmPkg/Drivers/ArmCpuLib/ArmCortexA9Lib/ArmCortexA9Lib.c

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+/** @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.
+
+**/
+
+#include <Base.h>
+#include <Library/ArmLib.h>
+#include <Library/ArmCpuLib.h>
+#include <Library/ArmGicLib.h>
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+
+#include <Chipset/ArmCortexA9.h>
+
+VOID
+ArmCpuSynchronizeSignal (
+  IN ARM_CPU_SYNCHRONIZE_EVENT   Event
+  )
+{
+  if (Event == ARM_CPU_EVENT_BOOT_MEM_INIT) {
+    // Do nothing, Cortex A9 secondary cores are waiting for the SCU to be
+    // enabled (done by ArmCpuSetup()) as a way to know when the Init Boot
+    // Mem as been initialized
+  } else {
+    // Send SGI to all Secondary core to wake them up from WFI state.
+    ArmGicSendSgiTo (PcdGet32(PcdGicDistributorBase), ARM_GIC_ICDSGIR_FILTER_EVERYONEELSE, 0x0E);
+  }
+}
+
+VOID
+CArmCpuSynchronizeWait (
+  IN ARM_CPU_SYNCHRONIZE_EVENT   Event
+  )
+{
+  // Waiting for the SGI from the primary core
+  ArmCallWFI ();
+
+  // Acknowledge the interrupt and send End of Interrupt signal.
+  ArmGicAcknowledgeSgiFrom (PcdGet32(PcdGicInterruptInterfaceBase), PRIMARY_CORE_ID);
+}
+
+VOID
+ArmEnableScu (
+  VOID
+  )
+{
+  INTN          ScuBase;
+
+  ScuBase = ArmGetScuBaseAddress();
+
+  // Invalidate all: write -1 to SCU Invalidate All register
+  MmioWrite32(ScuBase + A9_SCU_INVALL_OFFSET, 0xffffffff);
+  // Enable SCU
+  MmioWrite32(ScuBase + A9_SCU_CONTROL_OFFSET, 0x1);
+}
+
+VOID
+ArmCpuSetup (
+  IN  UINTN         MpId
+  )
+{
+  // Enable SWP instructions
+  ArmEnableSWPInstruction ();
+
+  // Enable program flow prediction, if supported.
+  ArmEnableBranchPrediction ();
+
+  // If MPCore then Enable the SCU
+  if (ArmIsMpCore()) {
+    ArmEnableScu ();
+  }
+}
+
+
+VOID
+ArmCpuSetupSmpNonSecure (
+  IN  UINTN         MpId
+  )
+{
+  INTN          ScuBase;
+
+  ArmSetAuxCrBit (A9_FEATURE_SMP);
+
+  // Make the SCU accessible in Non Secure world
+  if (IS_PRIMARY_CORE(MpId)) {
+    ScuBase = ArmGetScuBaseAddress();
+
+    // Allow NS access to SCU register
+    MmioOr32 (ScuBase + A9_SCU_SACR_OFFSET, 0xf);
+    // Allow NS access to Private Peripherals
+    MmioOr32 (ScuBase + A9_SCU_SSACR_OFFSET, 0xfff);
+  }
+}

ArmPkg/Drivers/ArmCpuLib/ArmCortexA9Lib/ArmCortexA9Lib.inf

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+#/* @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.             
+#
+#*/
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ArmCortexA9Lib
+  FILE_GUID                      = c9709ea3-1beb-4806-889a-8a1d5e5e1697
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ArmCpuLib
+
+[Packages]
+  MdePkg/MdePkg.dec
+  ArmPkg/ArmPkg.dec
+
+[LibraryClasses]
+  ArmLib
+  ArmGicSecLib
+  IoLib
+  PcdLib
+
+[Sources.common]
+  ArmCortexA9Lib.c
+  ArmCortexA9Helper.asm     | RVCT
+  ArmCortexA9Helper.S       | GCC
+
+[FeaturePcd]
+
+[FixedPcd]
+  gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
+  gArmTokenSpaceGuid.PcdArmPrimaryCore
+
+  gArmTokenSpaceGuid.PcdGicDistributorBase
+  gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase