/** @file | |
* | |
* Copyright (c) 2016-2017, Linaro 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> | |
// 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 | |
#define HIKEY960_RESERVED_MEMORY | |
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; | |
#ifdef HIKEY960_RESERVED_MEMORY | |
UINTN Index = 0, Count, ReservedTop; | |
EFI_PEI_HOB_POINTERS NextHob; | |
UINT64 ResourceLength; | |
EFI_PHYSICAL_ADDRESS ResourceTop; | |
#endif | |
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) | |
); | |
#ifdef HIKEY960_RESERVED_MEMORY | |
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); | |
} | |
#endif | |
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; | |
} | |
if (FeaturePcdGet (PcdCacheEnable) == TRUE) { | |
CacheAttributes = DDR_ATTRIBUTES_CACHED; | |
} else { | |
CacheAttributes = DDR_ATTRIBUTES_UNCACHED; | |
} | |
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; | |
} |