BeagleBoardPkg: Implement ArmPlatformLib and the ARM PCDs to reuse ARM common compone...

[mirror_edk2.git] / BeagleBoardPkg / Library / BeagleBoardLib / BeagleBoardMem.c

diff --git a/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardMem.c b/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardMem.c
new file mode 100755 (executable)
index 0000000..6af3073
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+++ b/BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardMem.c
@@ -0,0 +1,102 @@
+/** @file\r
+*\r
+*  Copyright (c) 2011, ARM Limited. All rights reserved.\r
+*  \r
+*  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 <Library/ArmPlatformLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/PcdLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/IoLib.h>\r
+\r
+#include <BeagleBoard.h>\r
+\r
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS          4\r
+\r
+/**\r
+  Return the Virtual Memory Map of your platform\r
+\r
+  This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.\r
+\r
+  @param[out]   VirtualMemoryMap    Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-\r
+                                    Virtual Memory mapping. This array must be ended by a zero-filled\r
+                                    entry\r
+\r
+**/\r
+VOID\r
+ArmPlatformGetVirtualMemoryMap (\r
+  IN ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap\r
+  )\r
+{\r
+  ARM_MEMORY_REGION_ATTRIBUTES  CacheAttributes;\r
+  UINTN                         Index = 0;\r
+  ARM_MEMORY_REGION_DESCRIPTOR  *VirtualMemoryTable;\r
+\r
+  ASSERT(VirtualMemoryMap != NULL);\r
+\r
+  VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS));\r
+  if (VirtualMemoryTable == NULL) {\r
+    return;\r
+  }\r
+\r
+  if (FeaturePcdGet(PcdCacheEnable) == TRUE) {\r
+    CacheAttributes = DDR_ATTRIBUTES_CACHED;\r
+  } else {\r
+    CacheAttributes = DDR_ATTRIBUTES_UNCACHED;\r
+  }\r
+\r
+  // ReMap (Either NOR Flash or DRAM)\r
+  VirtualMemoryTable[Index].PhysicalBase = PcdGet32(PcdSystemMemoryBase);\r
+  VirtualMemoryTable[Index].VirtualBase  = PcdGet32(PcdSystemMemoryBase);\r
+  VirtualMemoryTable[Index].Length       = PcdGet32(PcdSystemMemorySize);\r
+  VirtualMemoryTable[Index].Attributes   = CacheAttributes;\r
+\r
+  // SOC Registers. L3 interconnects\r
+  VirtualMemoryTable[++Index].PhysicalBase = SOC_REGISTERS_L3_PHYSICAL_BASE;\r
+  VirtualMemoryTable[Index].VirtualBase  = SOC_REGISTERS_L3_PHYSICAL_BASE;\r
+  VirtualMemoryTable[Index].Length       = SOC_REGISTERS_L3_PHYSICAL_LENGTH;\r
+  VirtualMemoryTable[Index].Attributes   = SOC_REGISTERS_L3_ATTRIBUTES;\r
+\r
+  // SOC Registers. L4 interconnects\r
+  VirtualMemoryTable[++Index].PhysicalBase = SOC_REGISTERS_L4_PHYSICAL_BASE;\r
+  VirtualMemoryTable[Index].VirtualBase  = SOC_REGISTERS_L4_PHYSICAL_BASE;\r
+  VirtualMemoryTable[Index].Length       = SOC_REGISTERS_L4_PHYSICAL_LENGTH;\r
+  VirtualMemoryTable[Index].Attributes   = SOC_REGISTERS_L4_ATTRIBUTES;\r
+\r
+  // End of Table\r
+  VirtualMemoryTable[++Index].PhysicalBase = 0;\r
+  VirtualMemoryTable[Index].VirtualBase  = 0;\r
+  VirtualMemoryTable[Index].Length       = 0;\r
+  VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)0;\r
+\r
+  ASSERT((Index + 1) == MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);\r
+\r
+  *VirtualMemoryMap = VirtualMemoryTable;\r
+}\r
+\r
+/**\r
+  Return the EFI Memory Map of your platform\r
+\r
+  This EFI Memory Map of the System Memory is used by MemoryInitPei module to create the Resource\r
+  Descriptor HOBs used by DXE core.\r
+\r
+  @param[out]   EfiMemoryMap        Array of ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR describing an\r
+                                    EFI Memory region. This array must be ended by a zero-filled entry\r
+\r
+**/\r
+EFI_STATUS\r
+ArmPlatformGetAdditionalSystemMemory (\r
+  OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap\r
+  )\r
+{\r
+  return EFI_UNSUPPORTED;\r
+}\r