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- /** @file
- *
- * Copyright (c) 2018, Linaro Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-2-Clause-Patent
- *
- **/
- #include <Library/ArmPlatformLib.h>
- #include <Library/DebugLib.h>
- #include <Library/HobLib.h>
- #include <Library/PcdLib.h>
- #include <Library/IoLib.h>
- #include <Library/MemoryAllocationLib.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
- #define HI3660_PERIPH_BASE 0xE0000000
- #define HI3660_PERIPH_SZ 0x20000000
- #define HIKEY960_EXTRA_SYSTEM_MEMORY_BASE 0x0000000100000000
- #define HIKEY960_EXTRA_SYSTEM_MEMORY_SIZE 0x0000000020000000
- #define HIKEY960_MEMORY_SIZE 0x0000000100000000
- STATIC struct HiKey960ReservedMemory {
- EFI_PHYSICAL_ADDRESS Offset;
- EFI_PHYSICAL_ADDRESS Size;
- } HiKey960ReservedMemoryBuffer [] = {
- { 0x1AC00000, 0x00098000 }, // ARM-TF reserved
- { 0x32000000, 0x00100000 }, // PSTORE/RAMOOPS
- { 0x32100000, 0x00001000 }, // ADB REBOOT "REASON"
- { 0x3E000000, 0x02000000 }, // TEE OS
- { 0x89B80000, 0x00100000 }, // MCU Code reserved
- { 0x89C80000, 0x00040000 } // MCU reserved
- };
- /**
- 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;
- ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
- EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;
- UINTN Index = 0, Count, ReservedTop;
- EFI_PEI_HOB_POINTERS NextHob;
- UINT64 ResourceLength;
- EFI_PHYSICAL_ADDRESS ResourceTop;
- ResourceAttributes = (
- EFI_RESOURCE_ATTRIBUTE_PRESENT |
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
- EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
- EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
- EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
- EFI_RESOURCE_ATTRIBUTE_TESTED
- );
- // Create initial Base Hob for system memory.
- BuildResourceDescriptorHob (
- EFI_RESOURCE_SYSTEM_MEMORY,
- ResourceAttributes,
- PcdGet64 (PcdSystemMemoryBase),
- PcdGet64 (PcdSystemMemorySize)
- );
- NextHob.Raw = GetHobList ();
- Count = sizeof (HiKey960ReservedMemoryBuffer) / sizeof (struct HiKey960ReservedMemory);
- while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL)
- {
- if (Index >= Count)
- break;
- if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
- (HiKey960ReservedMemoryBuffer[Index].Offset >= NextHob.ResourceDescriptor->PhysicalStart) &&
- ((HiKey960ReservedMemoryBuffer[Index].Offset + HiKey960ReservedMemoryBuffer[Index].Size) <=
- NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength))
- {
- ResourceAttributes = NextHob.ResourceDescriptor->ResourceAttribute;
- ResourceLength = NextHob.ResourceDescriptor->ResourceLength;
- ResourceTop = NextHob.ResourceDescriptor->PhysicalStart + ResourceLength;
- ReservedTop = HiKey960ReservedMemoryBuffer[Index].Offset + HiKey960ReservedMemoryBuffer[Index].Size;
- // Create the System Memory HOB for the reserved buffer
- BuildResourceDescriptorHob (
- EFI_RESOURCE_MEMORY_RESERVED,
- EFI_RESOURCE_ATTRIBUTE_PRESENT,
- HiKey960ReservedMemoryBuffer[Index].Offset,
- HiKey960ReservedMemoryBuffer[Index].Size
- );
- // Update the HOB
- NextHob.ResourceDescriptor->ResourceLength = HiKey960ReservedMemoryBuffer[Index].Offset -
- NextHob.ResourceDescriptor->PhysicalStart;
- // If there is some memory available on the top of the reserved memory then create a HOB
- if (ReservedTop < ResourceTop)
- {
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,
- ResourceAttributes,
- ReservedTop,
- ResourceTop - ReservedTop);
- }
- Index++;
- }
- NextHob.Raw = GET_NEXT_HOB (NextHob);
- }
- ASSERT (VirtualMemoryMap != NULL);
- VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages (
- EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS)
- );
- if (VirtualMemoryTable == NULL) {
- return;
- }
- CacheAttributes = DDR_ATTRIBUTES_CACHED;
- Index = 0;
- // DDR - 3.0GB section
- VirtualMemoryTable[Index].PhysicalBase = PcdGet64 (PcdSystemMemoryBase);
- VirtualMemoryTable[Index].VirtualBase = PcdGet64 (PcdSystemMemoryBase);
- VirtualMemoryTable[Index].Length = PcdGet64 (PcdSystemMemorySize);
- VirtualMemoryTable[Index].Attributes = CacheAttributes;
- // Hi3660 SOC peripherals
- VirtualMemoryTable[++Index].PhysicalBase = HI3660_PERIPH_BASE;
- VirtualMemoryTable[Index].VirtualBase = HI3660_PERIPH_BASE;
- VirtualMemoryTable[Index].Length = HI3660_PERIPH_SZ;
- VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
- // 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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