HiKeyMem.c 7.7 KB

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  1. /** @file
  2. *
  3. * Copyright (c) 2014-2017, Linaro Limited. All rights reserved.
  4. *
  5. * This program and the accompanying materials
  6. * are licensed and made available under the terms and conditions of the BSD License
  7. * which accompanies this distribution. The full text of the license may be found at
  8. * http://opensource.org/licenses/bsd-license.php
  9. *
  10. * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11. * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12. *
  13. **/
  14. #include <Library/ArmPlatformLib.h>
  15. #include <Library/DebugLib.h>
  16. #include <Library/HobLib.h>
  17. #include <Library/IoLib.h>
  18. #include <Library/MemoryAllocationLib.h>
  19. #include <Library/PcdLib.h>
  20. #include <Hi6220.h>
  21. // The total number of descriptors, including the final "end-of-table" descriptor.
  22. #define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 12
  23. // DDR attributes
  24. #define DDR_ATTRIBUTES_CACHED ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
  25. #define DDR_ATTRIBUTES_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
  26. #define HIKEY_EXTRA_SYSTEM_MEMORY_BASE 0x40000000
  27. #define HIKEY_EXTRA_SYSTEM_MEMORY_SIZE 0x40000000
  28. STATIC struct HiKeyReservedMemory {
  29. EFI_PHYSICAL_ADDRESS Offset;
  30. EFI_PHYSICAL_ADDRESS Size;
  31. } HiKeyReservedMemoryBuffer [] = {
  32. { 0x05E00000, 0x00100000 }, // MCU
  33. { 0x05F01000, 0x00001000 }, // ADB REBOOT "REASON"
  34. { 0x06DFF000, 0x00001000 }, // MAILBOX
  35. { 0x0740F000, 0x00001000 }, // MAILBOX
  36. { 0x21F00000, 0x00100000 }, // PSTORE/RAMOOPS
  37. { 0x3E000000, 0x02000000 } // TEE OS
  38. };
  39. STATIC
  40. UINT64
  41. EFIAPI
  42. HiKeyInitMemorySize (
  43. IN VOID
  44. )
  45. {
  46. UINT32 Data;
  47. UINT64 MemorySize;
  48. Data = MmioRead32 (MDDRC_AXI_BASE + AXI_REGION_MAP);
  49. MemorySize = HIKEY_REGION_SIZE(Data);
  50. return MemorySize;
  51. }
  52. /**
  53. Return the Virtual Memory Map of your platform
  54. This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
  55. @param[out] VirtualMemoryMap Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
  56. Virtual Memory mapping. This array must be ended by a zero-filled
  57. entry
  58. **/
  59. VOID
  60. ArmPlatformGetVirtualMemoryMap (
  61. IN ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap
  62. )
  63. {
  64. ARM_MEMORY_REGION_ATTRIBUTES CacheAttributes;
  65. UINTN Index = 0, Count, ReservedTop;
  66. ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
  67. EFI_PEI_HOB_POINTERS NextHob;
  68. EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;
  69. UINT64 ResourceLength;
  70. EFI_PHYSICAL_ADDRESS ResourceTop;
  71. UINT64 MemorySize, AdditionalMemorySize;
  72. MemorySize = HiKeyInitMemorySize ();
  73. if (MemorySize == 0) {
  74. MemorySize = PcdGet64 (PcdSystemMemorySize);
  75. }
  76. ResourceAttributes = (
  77. EFI_RESOURCE_ATTRIBUTE_PRESENT |
  78. EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
  79. EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
  80. EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
  81. EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
  82. EFI_RESOURCE_ATTRIBUTE_TESTED
  83. );
  84. // Create initial Base Hob for system memory.
  85. BuildResourceDescriptorHob (
  86. EFI_RESOURCE_SYSTEM_MEMORY,
  87. ResourceAttributes,
  88. PcdGet64 (PcdSystemMemoryBase),
  89. PcdGet64 (PcdSystemMemorySize)
  90. );
  91. NextHob.Raw = GetHobList ();
  92. Count = sizeof (HiKeyReservedMemoryBuffer) / sizeof (struct HiKeyReservedMemory);
  93. while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {
  94. if (Index >= Count) {
  95. break;
  96. }
  97. if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
  98. (HiKeyReservedMemoryBuffer[Index].Offset >= NextHob.ResourceDescriptor->PhysicalStart) &&
  99. ((HiKeyReservedMemoryBuffer[Index].Offset + HiKeyReservedMemoryBuffer[Index].Size) <=
  100. NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength)) {
  101. ResourceAttributes = NextHob.ResourceDescriptor->ResourceAttribute;
  102. ResourceLength = NextHob.ResourceDescriptor->ResourceLength;
  103. ResourceTop = NextHob.ResourceDescriptor->PhysicalStart + ResourceLength;
  104. ReservedTop = HiKeyReservedMemoryBuffer[Index].Offset + HiKeyReservedMemoryBuffer[Index].Size;
  105. // Create the System Memory HOB for the reserved buffer
  106. BuildResourceDescriptorHob (EFI_RESOURCE_MEMORY_RESERVED,
  107. EFI_RESOURCE_ATTRIBUTE_PRESENT,
  108. HiKeyReservedMemoryBuffer[Index].Offset,
  109. HiKeyReservedMemoryBuffer[Index].Size);
  110. // Update the HOB
  111. NextHob.ResourceDescriptor->ResourceLength = HiKeyReservedMemoryBuffer[Index].Offset - NextHob.ResourceDescriptor->PhysicalStart;
  112. // If there is some memory available on the top of the reserved memory then create a HOB
  113. if (ReservedTop < ResourceTop) {
  114. BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,
  115. ResourceAttributes,
  116. ReservedTop,
  117. ResourceTop - ReservedTop);
  118. }
  119. Index++;
  120. }
  121. NextHob.Raw = GET_NEXT_HOB (NextHob);
  122. }
  123. AdditionalMemorySize = MemorySize - PcdGet64 (PcdSystemMemorySize);
  124. if (AdditionalMemorySize >= SIZE_1GB) {
  125. // Declared the additional memory
  126. ResourceAttributes =
  127. EFI_RESOURCE_ATTRIBUTE_PRESENT |
  128. EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
  129. EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
  130. EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
  131. EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
  132. EFI_RESOURCE_ATTRIBUTE_TESTED;
  133. BuildResourceDescriptorHob (
  134. EFI_RESOURCE_SYSTEM_MEMORY,
  135. ResourceAttributes,
  136. HIKEY_EXTRA_SYSTEM_MEMORY_BASE,
  137. HIKEY_EXTRA_SYSTEM_MEMORY_SIZE);
  138. }
  139. ASSERT (VirtualMemoryMap != NULL);
  140. VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS));
  141. if (VirtualMemoryTable == NULL) {
  142. return;
  143. }
  144. if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
  145. CacheAttributes = DDR_ATTRIBUTES_CACHED;
  146. } else {
  147. CacheAttributes = DDR_ATTRIBUTES_UNCACHED;
  148. }
  149. Index = 0;
  150. // Hi6220 SOC peripherals
  151. VirtualMemoryTable[Index].PhysicalBase = HI6220_PERIPH_BASE;
  152. VirtualMemoryTable[Index].VirtualBase = HI6220_PERIPH_BASE;
  153. VirtualMemoryTable[Index].Length = HI6220_PERIPH_SZ;
  154. VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
  155. // DDR - predefined 1GB size
  156. VirtualMemoryTable[++Index].PhysicalBase = PcdGet64 (PcdSystemMemoryBase);
  157. VirtualMemoryTable[Index].VirtualBase = PcdGet64 (PcdSystemMemoryBase);
  158. VirtualMemoryTable[Index].Length = PcdGet64 (PcdSystemMemorySize);
  159. VirtualMemoryTable[Index].Attributes = CacheAttributes;
  160. // If DDR capacity is 2GB size, append a new entry to fill the gap.
  161. if (AdditionalMemorySize >= SIZE_1GB) {
  162. VirtualMemoryTable[++Index].PhysicalBase = HIKEY_EXTRA_SYSTEM_MEMORY_BASE;
  163. VirtualMemoryTable[Index].VirtualBase = HIKEY_EXTRA_SYSTEM_MEMORY_BASE;
  164. VirtualMemoryTable[Index].Length = HIKEY_EXTRA_SYSTEM_MEMORY_SIZE;
  165. VirtualMemoryTable[Index].Attributes = CacheAttributes;
  166. }
  167. // End of Table
  168. VirtualMemoryTable[++Index].PhysicalBase = 0;
  169. VirtualMemoryTable[Index].VirtualBase = 0;
  170. VirtualMemoryTable[Index].Length = 0;
  171. VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)0;
  172. ASSERT((Index + 1) <= MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);
  173. *VirtualMemoryMap = VirtualMemoryTable;
  174. }