-/** @file
-
- Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
-
- 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 <Chipset/ARM1176JZ-S.h>
-#include <Library/ArmLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-
-VOID
-FillTranslationTable (
- IN UINT32 *TranslationTable,
- IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion
- )
-{
- UINT32 *Entry;
- UINTN Sections;
- UINTN Index;
- UINT32 Attributes;
- UINT32 PhysicalBase = MemoryRegion->PhysicalBase;
-
- switch (MemoryRegion->Attributes) {
- case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_BACK(0);
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_THROUGH:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_THROUGH(0);
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED:
- Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(0);
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_BACK:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_BACK(1);
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_THROUGH:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_THROUGH(1);
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_UNCACHED_UNBUFFERED:
- Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(1);
- break;
- default:
- Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(0);
- break;
- }
-
- Entry = TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS(TranslationTable, MemoryRegion->VirtualBase);
- Sections = ((( MemoryRegion->Length - 1 ) / TT_DESCRIPTOR_SECTION_SIZE ) + 1 );
-
- for (Index = 0; Index < Sections; Index++)
- {
- *Entry++ = TT_DESCRIPTOR_SECTION_BASE_ADDRESS(PhysicalBase) | Attributes;
- PhysicalBase += TT_DESCRIPTOR_SECTION_SIZE;
- }
-}
-
-VOID
-EFIAPI
-ArmConfigureMmu (
- IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable,
- OUT VOID **TranslationTableBase OPTIONAL,
- OUT UINTN *TranslationTableSize OPTIONAL
- )
-{
- VOID *TranslationTable;
-
- // Allocate pages for translation table.
- TranslationTable = AllocatePages(EFI_SIZE_TO_PAGES(TRANSLATION_TABLE_SIZE + TRANSLATION_TABLE_ALIGNMENT));
- TranslationTable = (VOID *)(((UINTN)TranslationTable + TRANSLATION_TABLE_ALIGNMENT_MASK) & ~TRANSLATION_TABLE_ALIGNMENT_MASK);
-
- if (TranslationTableBase != NULL) {
- *TranslationTableBase = TranslationTable;
- }
-
- if (TranslationTableBase != NULL) {
- *TranslationTableSize = TRANSLATION_TABLE_SIZE;
- }
-
- ZeroMem(TranslationTable, TRANSLATION_TABLE_SIZE);
-
- ArmCleanInvalidateDataCache();
- ArmInvalidateInstructionCache();
- ArmInvalidateTlb();
-
- ArmDisableDataCache();
- ArmDisableInstructionCache();
- ArmDisableMmu();
-
- // Make sure nothing sneaked into the cache
- ArmCleanInvalidateDataCache();
- ArmInvalidateInstructionCache();
-
- while (MemoryTable->Length != 0) {
- FillTranslationTable(TranslationTable, MemoryTable);
- MemoryTable++;
- }
-
- ArmSetTTBR0(TranslationTable);
-
- ArmSetDomainAccessControl(DOMAIN_ACCESS_CONTROL_NONE(15) |
- DOMAIN_ACCESS_CONTROL_NONE(14) |
- DOMAIN_ACCESS_CONTROL_NONE(13) |
- DOMAIN_ACCESS_CONTROL_NONE(12) |
- DOMAIN_ACCESS_CONTROL_NONE(11) |
- DOMAIN_ACCESS_CONTROL_NONE(10) |
- DOMAIN_ACCESS_CONTROL_NONE( 9) |
- DOMAIN_ACCESS_CONTROL_NONE( 8) |
- DOMAIN_ACCESS_CONTROL_NONE( 7) |
- DOMAIN_ACCESS_CONTROL_NONE( 6) |
- DOMAIN_ACCESS_CONTROL_NONE( 5) |
- DOMAIN_ACCESS_CONTROL_NONE( 4) |
- DOMAIN_ACCESS_CONTROL_NONE( 3) |
- DOMAIN_ACCESS_CONTROL_NONE( 2) |
- DOMAIN_ACCESS_CONTROL_NONE( 1) |
- DOMAIN_ACCESS_CONTROL_MANAGER(0));
-
- ArmEnableInstructionCache();
- ArmEnableDataCache();
- ArmEnableMmu();
-}
-
-
-
-
+/** @file\r
+\r
+ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\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 <Chipset/ARM1176JZ-S.h>\r
+#include <Library/ArmLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+\r
+VOID\r
+FillTranslationTable (\r
+ IN UINT32 *TranslationTable,\r
+ IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion\r
+ )\r
+{\r
+ UINT32 *Entry;\r
+ UINTN Sections;\r
+ UINTN Index;\r
+ UINT32 Attributes;\r
+ UINT32 PhysicalBase = MemoryRegion->PhysicalBase;\r
+ \r
+ switch (MemoryRegion->Attributes) {\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK:\r
+ Attributes = TT_DESCRIPTOR_SECTION_WRITE_BACK(0);\r
+ break;\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_THROUGH:\r
+ Attributes = TT_DESCRIPTOR_SECTION_WRITE_THROUGH(0);\r
+ break;\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED:\r
+ Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(0);\r
+ break;\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_BACK:\r
+ Attributes = TT_DESCRIPTOR_SECTION_WRITE_BACK(1);\r
+ break;\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_THROUGH:\r
+ Attributes = TT_DESCRIPTOR_SECTION_WRITE_THROUGH(1);\r
+ break;\r
+ case ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_UNCACHED_UNBUFFERED:\r
+ Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(1);\r
+ break;\r
+ default:\r
+ Attributes = TT_DESCRIPTOR_SECTION_UNCACHED(0);\r
+ break;\r
+ }\r
+ \r
+ Entry = TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS(TranslationTable, MemoryRegion->VirtualBase);\r
+ Sections = ((( MemoryRegion->Length - 1 ) / TT_DESCRIPTOR_SECTION_SIZE ) + 1 );\r
+ \r
+ for (Index = 0; Index < Sections; Index++)\r
+ {\r
+ *Entry++ = TT_DESCRIPTOR_SECTION_BASE_ADDRESS(PhysicalBase) | Attributes;\r
+ PhysicalBase += TT_DESCRIPTOR_SECTION_SIZE;\r
+ }\r
+}\r
+\r
+VOID\r
+EFIAPI\r
+ArmConfigureMmu (\r
+ IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable,\r
+ OUT VOID **TranslationTableBase OPTIONAL,\r
+ OUT UINTN *TranslationTableSize OPTIONAL\r
+ )\r
+{\r
+ VOID *TranslationTable;\r
+\r
+ // Allocate pages for translation table.\r
+ TranslationTable = AllocatePages(EFI_SIZE_TO_PAGES(TRANSLATION_TABLE_SIZE + TRANSLATION_TABLE_ALIGNMENT));\r
+ TranslationTable = (VOID *)(((UINTN)TranslationTable + TRANSLATION_TABLE_ALIGNMENT_MASK) & ~TRANSLATION_TABLE_ALIGNMENT_MASK);\r
+\r
+ if (TranslationTableBase != NULL) {\r
+ *TranslationTableBase = TranslationTable;\r
+ }\r
+ \r
+ if (TranslationTableBase != NULL) {\r
+ *TranslationTableSize = TRANSLATION_TABLE_SIZE;\r
+ }\r
+\r
+ ZeroMem(TranslationTable, TRANSLATION_TABLE_SIZE);\r
+\r
+ ArmCleanInvalidateDataCache();\r
+ ArmInvalidateInstructionCache();\r
+ ArmInvalidateTlb();\r
+\r
+ ArmDisableDataCache();\r
+ ArmDisableInstructionCache();\r
+ ArmDisableMmu();\r
+\r
+ // Make sure nothing sneaked into the cache\r
+ ArmCleanInvalidateDataCache();\r
+ ArmInvalidateInstructionCache();\r
+\r
+ while (MemoryTable->Length != 0) {\r
+ FillTranslationTable(TranslationTable, MemoryTable);\r
+ MemoryTable++;\r
+ }\r
+\r
+ ArmSetTTBR0(TranslationTable);\r
+ \r
+ ArmSetDomainAccessControl(DOMAIN_ACCESS_CONTROL_NONE(15) |\r
+ DOMAIN_ACCESS_CONTROL_NONE(14) |\r
+ DOMAIN_ACCESS_CONTROL_NONE(13) |\r
+ DOMAIN_ACCESS_CONTROL_NONE(12) |\r
+ DOMAIN_ACCESS_CONTROL_NONE(11) |\r
+ DOMAIN_ACCESS_CONTROL_NONE(10) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 9) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 8) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 7) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 6) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 5) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 4) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 3) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 2) |\r
+ DOMAIN_ACCESS_CONTROL_NONE( 1) |\r
+ DOMAIN_ACCESS_CONTROL_MANAGER(0));\r
+ \r
+ ArmEnableInstructionCache();\r
+ ArmEnableDataCache();\r
+ ArmEnableMmu(); \r
+}\r
+\r
+\r
+\r
+\r
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