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/** @file
*
* Copyright (c) 2012, Samsung Electronics Co. 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/PcdLib.h>
#include <Library/IoLib.h>
#include <Library/MemoryAllocationLib.h>
#include <ArmPlatform.h>
// Number of Virtual Memory Map Descriptors without a Logic Tile
#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 9
// DDR attributes
#define DDR_ATTRIBUTES_CACHED ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_BACK
#define DDR_ATTRIBUTES_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_UNCACHED_UNBUFFERED
#define DDR_ATTRIBUTES_SECURE_CACHED ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
#define DDR_ATTRIBUTES_SECURE_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
// Logical Region 1
#define SOC_REGISTERS_IROM_PHYSICAL_BASE 0x00000000
#define SOC_REGISTERS_IROM_PHYSICAL_LENGTH 0x02010000
#define SOC_REGISTERS_IROM_ATTRIBUTES ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_DEVICE
#define SOC_REGISTERS_IROM_SECURE_ATTRIBUTES ARM_MEMORY_REGION_ATTRIBUTE_DEVICE
// Logical Region 2
#define SOC_REGISTERS_SFR_PHYSICAL_BASE 0x10000000
#define SOC_REGISTERS_SFR_PHYSICAL_LENGTH 0x08FFFFFF
#define SOC_REGISTERS_SFR_ATTRIBUTES ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_DEVICE
#define SOC_REGISTERS_SFR_SECURE_ATTRIBUTES ARM_MEMORY_REGION_ATTRIBUTE_DEVICE
/**
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;
UINTN Index = 0;
ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
DEBUG ((EFI_D_ERROR, "++%a:%d\n", __FUNCTION__, __LINE__));
UINTN MemoryBase_Pcd = PcdGet32(PcdSystemMemoryBase);
UINTN MemorySize_Pcd = PcdGet32(PcdSystemMemorySize);
UINTN FrameBufferBase_Pcd = PcdGet32(PcdFrameBufferBase);
UINTN FrameBufferSize_Pcd = PcdGet32(PcdFrameBufferSize);
UINTN MpSharedArgsBase_Pcd = PcdGet32(PcdMpSharedArgsBase);
UINTN MpSharedArgsSize_Pcd = PcdGet32(PcdMpSharedArgsSize);
UINTN FdBaseAddress_Pcd = PcdGet32(PcdFdBaseAddress);
UINTN FdSize_Pcd = PcdGet32(PcdFdSize);
UINTN SmemBase_Pcd = PcdGet32(PcdSmemBaseAddress);
UINTN SmemSize_Pcd = PcdGet32(PcdSmemSize);
UINTN iRamBootBase_Pcd = PcdGet32(PcdiRamBootBase);
UINTN iRamBootSize_Pcd = PcdGet32(PcdiRamBootSize);
BOOLEAN TrustzoneSupport_Pcd = PcdGetBool (PcdTrustzoneSupport);
UINT32 Nsacr = ArmReadNsacr();
UINTN EmmcDMABufferBase_Pcd = PcdGet32(PcdEmmcDMABufferBase);
// Checking Secure mode
if(Nsacr == 0x0) // Secure mode
{
TrustzoneSupport_Pcd = FALSE;
}
// Check if SMC TZASC is enabled. If Trustzone not enabled then all the entries remain in Secure World.
// As this value can be changed in the Board Configuration file, the UEFI firmware needs to work for both case
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 = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_CACHED : DDR_ATTRIBUTES_SECURE_CACHED);
} else {
CacheAttributes = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
}
// FD region : 0x40000000 - 0x40200000
// Map in the FD region (includes SEC), the stack, and the exception vector region
VirtualMemoryTable[Index].PhysicalBase = FdBaseAddress_Pcd;
VirtualMemoryTable[Index].VirtualBase = FdBaseAddress_Pcd;
VirtualMemoryTable[Index].Length = FdSize_Pcd; // need to check
VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
DEBUG ((EFI_D_ERROR, "FD region : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// SMEM : 0x40200000 - 0x40300000
// Shared memory 1MB (0x4000_0000 -- 0x4010_0000)
VirtualMemoryTable[++Index].PhysicalBase = SmemBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = SmemBase_Pcd;
VirtualMemoryTable[Index].Length = SmemSize_Pcd;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
DEBUG ((EFI_D_ERROR, "SMEM : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// EMMC : 0x40300000 - 0x40400000
// EMMC (0x4030_0000 - 0x404_0000) (1MB)
VirtualMemoryTable[++Index].PhysicalBase = EmmcDMABufferBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = EmmcDMABufferBase_Pcd;
VirtualMemoryTable[Index].Length = 0x00100000;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
DEBUG ((EFI_D_ERROR, "EMMC : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// DDR : 0x40400000 - 0x4E000000
// DDR (0x4040_0000 - 0x4E00_0000) (511MB)
VirtualMemoryTable[++Index].PhysicalBase = 0x40400000;
VirtualMemoryTable[Index].VirtualBase = 0x40400000;
VirtualMemoryTable[Index].Length = 0x0DC00000;
VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
DEBUG ((EFI_D_ERROR, "DDR : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// MpParkShared: 0x4D00_0000 - 0x4D10_0000
// MpParkSahred (0x4D00_0000 - 0x4D10_0000)
VirtualMemoryTable[++Index].PhysicalBase = MpSharedArgsBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = MpSharedArgsBase_Pcd;
VirtualMemoryTable[Index].Length = MpSharedArgsSize_Pcd;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
DEBUG ((EFI_D_ERROR, "FrameBuffer: 0x%8X - 0x%8X\n", VirtualMemoryTable[Index].PhysicalBase,
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// FrameBuffer: 0x4E000000 - 0x50000000
// Framebuffer (0x4E00_0000 - 0x5000_0000)
VirtualMemoryTable[++Index].PhysicalBase = FrameBufferBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = FrameBufferBase_Pcd;
VirtualMemoryTable[Index].Length = FrameBufferSize_Pcd;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
DEBUG ((EFI_D_ERROR, "FrameBuffer: 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// DDR : 0x50000000 - 0xA0000000
// DDR (0x5000_0000 - 0x8000_0000) (512MB)
VirtualMemoryTable[++Index].PhysicalBase = MemoryBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = MemoryBase_Pcd;
VirtualMemoryTable[Index].Length = MemorySize_Pcd;
VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
DEBUG ((EFI_D_ERROR, "DDR : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// SFR : 0x10000000 - 0x14000000
// SFR
VirtualMemoryTable[++Index].PhysicalBase = SOC_REGISTERS_SFR_PHYSICAL_BASE;
VirtualMemoryTable[Index].VirtualBase = SOC_REGISTERS_SFR_PHYSICAL_BASE;
VirtualMemoryTable[Index].Length = SOC_REGISTERS_SFR_PHYSICAL_LENGTH;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? SOC_REGISTERS_SFR_ATTRIBUTES : SOC_REGISTERS_SFR_SECURE_ATTRIBUTES);
DEBUG ((EFI_D_ERROR, "SFR : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// iRAM : 0x02020000 - 0x02040000
// iRAM
VirtualMemoryTable[++Index].PhysicalBase = iRamBootBase_Pcd;
VirtualMemoryTable[Index].VirtualBase = iRamBootBase_Pcd;
VirtualMemoryTable[Index].Length = iRamBootSize_Pcd;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_DEVICE);
DEBUG ((EFI_D_ERROR, "iRAM : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// iROM : 0x00000000 - 0x02010000
// iROM
VirtualMemoryTable[++Index].PhysicalBase = SOC_REGISTERS_IROM_PHYSICAL_BASE;
VirtualMemoryTable[Index].VirtualBase = SOC_REGISTERS_IROM_PHYSICAL_BASE;
VirtualMemoryTable[Index].Length = SOC_REGISTERS_IROM_PHYSICAL_LENGTH;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport_Pcd ? SOC_REGISTERS_IROM_ATTRIBUTES : SOC_REGISTERS_IROM_SECURE_ATTRIBUTES);
DEBUG ((EFI_D_ERROR, "iROM : 0x%8X - 0x%8X\n", (UINT32)(VirtualMemoryTable[Index].PhysicalBase),
(UINT32)(VirtualMemoryTable[Index].PhysicalBase + VirtualMemoryTable[Index].Length)));
// End of Table
VirtualMemoryTable[++Index].PhysicalBase = 0;
VirtualMemoryTable[Index].VirtualBase = 0;
VirtualMemoryTable[Index].Length = 0;
VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)0;
*VirtualMemoryMap = VirtualMemoryTable;
DEBUG ((EFI_D_ERROR, "--%a:%d\n", __FUNCTION__, __LINE__));
}
/**
Return the EFI Memory Map provided by extension memory on your platform
This EFI Memory Map of the System Memory is used by MemoryInitPei module to create the Resource
Descriptor HOBs used by DXE core.
TODO: CompleteMe .... say this is the memory not covered by the System Memory PCDs
@param[out] EfiMemoryMap Array of ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR describing an
EFI Memory region. This array must be ended by a zero-filled entry
**/
EFI_STATUS
ArmPlatformGetAdditionalSystemMemory (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
)
{
return EFI_UNSUPPORTED;
}
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