diff options
Diffstat (limited to 'Platforms/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Mem.c')
| -rw-r--r-- | Platforms/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Mem.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/Platforms/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Mem.c b/Platforms/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Mem.c new file mode 100644 index 0000000..174bac2 --- /dev/null +++ b/Platforms/Hisilicon/HiKey960/Library/HiKey960Lib/HiKey960Mem.c @@ -0,0 +1,173 @@ +/** @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;
+}
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