1 files changed, 144 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmJunoPkg/Library/ArmJunoLib/ArmJunoMem.c b/ArmPlatformPkg/ArmJunoPkg/Library/ArmJunoLib/ArmJunoMem.c
new file mode 100755
index 000000000..bc725df16
--- /dev/null
+++ b/ArmPlatformPkg/ArmJunoPkg/Library/ArmJunoLib/ArmJunoMem.c
@@ -0,0 +1,144 @@
+/** @file
+*
+*  Copyright (c) 2013-2014, 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/ArmPlatformLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include <ArmPlatform.h>
+
+// The total number of descriptors, including the final "end-of-table" descriptor.
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 12
+
+// DDR attributes
+#define DDR_ATTRIBUTES_CACHED           ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
+#define DDR_ATTRIBUTES_UNCACHED         ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
+
+/**
+  Return the Virtual Memory Map of your platform
+
+  This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
+
+  @param[out]   VirtualMemoryMap    Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
+                                    Virtual Memory mapping. This array must be ended by a zero-filled
+                                    entry
+
+**/
+VOID
+ArmPlatformGetVirtualMemoryMap (
+  IN ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap
+  )
+{
+  ARM_MEMORY_REGION_ATTRIBUTES  CacheAttributes;
+  UINTN                         Index = 0;
+  ARM_MEMORY_REGION_DESCRIPTOR  *VirtualMemoryTable;
+  EFI_RESOURCE_ATTRIBUTE_TYPE   ResourceAttributes;
+
+  ASSERT (VirtualMemoryMap != NULL);
+
+  //
+  // Declared the additional 6GB of memory
+  //
+  ResourceAttributes =
+      EFI_RESOURCE_ATTRIBUTE_PRESENT |
+      EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+      EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+      EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+      EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+      EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
+      EFI_RESOURCE_ATTRIBUTE_TESTED;
+
+  BuildResourceDescriptorHob (
+    EFI_RESOURCE_SYSTEM_MEMORY,
+    ResourceAttributes,
+    ARM_JUNO_EXTRA_SYSTEM_MEMORY_BASE,
+    ARM_JUNO_EXTRA_SYSTEM_MEMORY_SZ);
+
+  VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS));
+  if (VirtualMemoryTable == NULL) {
+      return;
+  }
+
+  if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
+      CacheAttributes = DDR_ATTRIBUTES_CACHED;
+  } else {
+      CacheAttributes = DDR_ATTRIBUTES_UNCACHED;
+  }
+
+  // SMB CS0 - NOR0 Flash
+  VirtualMemoryTable[Index].PhysicalBase    = ARM_VE_SMB_NOR0_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_VE_SMB_NOR0_BASE;
+  VirtualMemoryTable[Index].Length          = SIZE_256KB * 255;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+  // Environment Variables region
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_VE_SMB_NOR0_BASE + (SIZE_256KB * 255);
+  VirtualMemoryTable[Index].VirtualBase     = ARM_VE_SMB_NOR0_BASE + (SIZE_256KB * 255);
+  VirtualMemoryTable[Index].Length          = SIZE_64KB * 4;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+
+  // SMB CS2 & CS3 - Off-chip (motherboard) peripherals
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_VE_SMB_PERIPH_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_VE_SMB_PERIPH_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_VE_SMB_PERIPH_SZ;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+
+  // Juno OnChip non-secure ROM
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_JUNO_NON_SECURE_ROM_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_JUNO_NON_SECURE_ROM_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_JUNO_NON_SECURE_ROM_SZ;
+  VirtualMemoryTable[Index].Attributes      = CacheAttributes;
+
+  // Juno OnChip peripherals
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_JUNO_PERIPHERALS_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_JUNO_PERIPHERALS_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_JUNO_PERIPHERALS_SZ;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+
+  // Juno OnChip non-secure SRAM
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_JUNO_NON_SECURE_SRAM_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_JUNO_NON_SECURE_SRAM_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_JUNO_NON_SECURE_SRAM_SZ;
+  VirtualMemoryTable[Index].Attributes      = CacheAttributes;
+
+  // Juno SOC peripherals
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_JUNO_SOC_PERIPHERALS_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_JUNO_SOC_PERIPHERALS_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_JUNO_SOC_PERIPHERALS_SZ;
+  VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+
+  // DDR - 2GB
+  VirtualMemoryTable[++Index].PhysicalBase  = PcdGet64 (PcdSystemMemoryBase);
+  VirtualMemoryTable[Index].VirtualBase     = PcdGet64 (PcdSystemMemoryBase);
+  VirtualMemoryTable[Index].Length          = PcdGet64 (PcdSystemMemorySize);
+  VirtualMemoryTable[Index].Attributes      = CacheAttributes;
+
+  // DDR - 6GB
+  VirtualMemoryTable[++Index].PhysicalBase  = ARM_JUNO_EXTRA_SYSTEM_MEMORY_BASE;
+  VirtualMemoryTable[Index].VirtualBase     = ARM_JUNO_EXTRA_SYSTEM_MEMORY_BASE;
+  VirtualMemoryTable[Index].Length          = ARM_JUNO_EXTRA_SYSTEM_MEMORY_SZ;
+  VirtualMemoryTable[Index].Attributes      = CacheAttributes;
+
+  // End of Table
+  VirtualMemoryTable[++Index].PhysicalBase  = 0;
+  VirtualMemoryTable[Index].VirtualBase     = 0;
+  VirtualMemoryTable[Index].Length          = 0;
+  VirtualMemoryTable[Index].Attributes      = (ARM_MEMORY_REGION_ATTRIBUTES)0;
+
+  ASSERT((Index + 1) <= MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);
+
+  *VirtualMemoryMap = VirtualMemoryTable;
+}