diff options
Diffstat (limited to 'ArmPlatformPkg/ArmJunoPkg/Library/ArmJunoLib/ArmJunoMem.c')
| -rw-r--r-- | ArmPlatformPkg/ArmJunoPkg/Library/ArmJunoLib/ArmJunoMem.c | 144 |
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 100644 index 0000000000..bc725df165 --- /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;
+}
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