Update to support a single stack. GCC update will follow.

[mirror_edk2.git] / BeagleBoardPkg / Sec / Cache.c

/** @file\r
\r
  Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r
  \r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include <PiPei.h>\r
\r
#include <Library/ArmLib.h>\r
#include <Library/PrePiLib.h>\r
#include <Library/PcdLib.h>\r
\r
// DDR attributes\r
#define DDR_ATTRIBUTES_CACHED                ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK\r
#define DDR_ATTRIBUTES_UNCACHED              ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED\r
\r
// SoC registers. L3 interconnects\r
#define SOC_REGISTERS_L3_PHYSICAL_BASE       0x68000000\r
#define SOC_REGISTERS_L3_PHYSICAL_LENGTH     0x08000000\r
#define SOC_REGISTERS_L3_ATTRIBUTES          ARM_MEMORY_REGION_ATTRIBUTE_DEVICE\r
\r
// SoC registers. L4 interconnects\r
#define SOC_REGISTERS_L4_PHYSICAL_BASE       0x48000000\r
#define SOC_REGISTERS_L4_PHYSICAL_LENGTH     0x08000000\r
#define SOC_REGISTERS_L4_ATTRIBUTES          ARM_MEMORY_REGION_ATTRIBUTE_DEVICE\r
\r
VOID\r
InitCache (\r
  IN  UINT32  MemoryBase,\r
  IN  UINT32  MemoryLength\r
  )\r
{\r
  UINTN                         UncachedMemoryMask;\r
  UINT32                        CacheAttributes;\r
  ARM_MEMORY_REGION_DESCRIPTOR  MemoryTable[5];\r
  VOID                          *TranslationTableBase;\r
  UINTN                         TranslationTableSize;\r
\r
  UncachedMemoryMask = PcdGet64(PcdArmUncachedMemoryMask);\r
\r
  if (FeaturePcdGet(PcdCacheEnable) == TRUE) {\r
    CacheAttributes = DDR_ATTRIBUTES_CACHED;\r
  } else {\r
    CacheAttributes = DDR_ATTRIBUTES_UNCACHED;\r
  }\r
\r
  // DDR\r
  MemoryTable[0].PhysicalBase = MemoryBase;\r
  MemoryTable[0].VirtualBase  = MemoryBase;\r
  MemoryTable[0].Length       = MemoryLength;\r
  MemoryTable[0].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;\r
\r
  // Uncached DDR Mirror\r
  MemoryTable[1].PhysicalBase = MemoryBase;\r
  MemoryTable[1].VirtualBase  = MemoryBase | UncachedMemoryMask;\r
  MemoryTable[1].Length       = MemoryLength;\r
  MemoryTable[1].Attributes   = DDR_ATTRIBUTES_UNCACHED;\r
\r
  // SOC Registers. L3 interconnects\r
  MemoryTable[2].PhysicalBase = SOC_REGISTERS_L3_PHYSICAL_BASE;\r
  MemoryTable[2].VirtualBase  = SOC_REGISTERS_L3_PHYSICAL_BASE;\r
  MemoryTable[2].Length       = SOC_REGISTERS_L3_PHYSICAL_LENGTH;\r
  MemoryTable[2].Attributes   = SOC_REGISTERS_L3_ATTRIBUTES;\r
  \r
  // SOC Registers. L4 interconnects\r
  MemoryTable[3].PhysicalBase = SOC_REGISTERS_L4_PHYSICAL_BASE;\r
  MemoryTable[3].VirtualBase  = SOC_REGISTERS_L4_PHYSICAL_BASE;\r
  MemoryTable[3].Length       = SOC_REGISTERS_L4_PHYSICAL_LENGTH;\r
  MemoryTable[3].Attributes   = SOC_REGISTERS_L4_ATTRIBUTES;\r
\r
  // End of Table\r
  MemoryTable[4].PhysicalBase = 0;\r
  MemoryTable[4].VirtualBase  = 0;\r
  MemoryTable[4].Length       = 0;\r
  MemoryTable[4].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)0;\r
  \r
  ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);\r
  \r
  BuildMemoryAllocationHob((EFI_PHYSICAL_ADDRESS)(UINTN)TranslationTableBase, TranslationTableSize, EfiBootServicesData);\r
}\r