/** @file * * Copyright (c) 2018, Linaro Limited. All rights reserved. * * SPDX-License-Identifier: BSD-2-Clause-Patent * **/ #include #include #include #include #include #include // 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; }