3 * Copyright (c) 2011, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include <Library/IoLib.h>
16 #include <Library/ArmPlatformLib.h>
17 #include <Library/DebugLib.h>
18 #include <Library/PcdLib.h>
20 #include <Drivers/SP804Timer.h>
22 #include <Ppi/ArmMpCoreInfo.h>
24 #include <ArmPlatform.h>
27 ArmGetCpuCountPerCluster (
31 ARM_CORE_INFO mVersatileExpressMpCoreInfoTable
[] = {
36 // MP Core MailBox Set/Get/Clear Addresses and Clear Value
37 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_REG
,
38 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_SET_REG
,
39 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_CLR_REG
,
46 // MP Core MailBox Set/Get/Clear Addresses and Clear Value
47 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_REG
,
48 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_SET_REG
,
49 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_CLR_REG
,
56 // MP Core MailBox Set/Get/Clear Addresses and Clear Value
57 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_REG
,
58 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_SET_REG
,
59 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_CLR_REG
,
66 // MP Core MailBox Set/Get/Clear Addresses and Clear Value
67 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_REG
,
68 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_SET_REG
,
69 (EFI_PHYSICAL_ADDRESS
)ARM_VE_SYS_FLAGS_CLR_REG
,
75 Return the current Boot Mode
77 This function returns the boot reason on the platform
79 @return Return the current Boot Mode of the platform
83 ArmPlatformGetBootMode (
87 return BOOT_WITH_FULL_CONFIGURATION
;
91 Remap the memory at 0x0
93 Some platform requires or gives the ability to remap the memory at the address 0x0.
94 This function can do nothing if this feature is not relevant to your platform.
98 ArmPlatformBootRemapping (
102 // Disable memory remapping and return to normal mapping
103 MmioOr32 (SP810_CTRL_BASE
, BIT8
);
107 Initialize controllers that must setup in the normal world
109 This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim
114 ArmPlatformNormalInitialize (
118 // Nothing to do here
122 Initialize the system (or sometimes called permanent) memory
124 This memory is generally represented by the DRAM.
128 ArmPlatformInitializeSystemMemory (
132 // Configure periodic timer (TIMER0) for 1MHz operation
133 MmioOr32 (SP810_CTRL_BASE
+ SP810_SYS_CTRL_REG
, SP810_SYS_CTRL_TIMER0_TIMCLK
);
134 // Configure 1MHz clock
135 MmioOr32 (SP810_CTRL_BASE
+ SP810_SYS_CTRL_REG
, SP810_SYS_CTRL_TIMER1_TIMCLK
);
136 // configure SP810 to use 1MHz clock and disable
137 MmioAndThenOr32 (SP810_CTRL_BASE
+ SP810_SYS_CTRL_REG
, ~SP810_SYS_CTRL_TIMER2_EN
, SP810_SYS_CTRL_TIMER2_TIMCLK
);
138 // Configure SP810 to use 1MHz clock and disable
139 MmioAndThenOr32 (SP810_CTRL_BASE
+ SP810_SYS_CTRL_REG
, ~SP810_SYS_CTRL_TIMER3_EN
, SP810_SYS_CTRL_TIMER3_TIMCLK
);
143 PrePeiCoreGetMpCoreInfo (
144 OUT UINTN
*CoreCount
,
145 OUT ARM_CORE_INFO
**ArmCoreTable
150 ProcType
= MmioRead32 (ARM_VE_SYS_PROCID0_REG
) & ARM_VE_SYS_PROC_ID_MASK
;
151 if ((ProcType
== ARM_VE_SYS_PROC_ID_CORTEX_A9
) || (ProcType
== ARM_VE_SYS_PROC_ID_CORTEX_A15
)) {
152 // Only support one cluster
153 *CoreCount
= ArmGetCpuCountPerCluster ();
154 *ArmCoreTable
= mVersatileExpressMpCoreInfoTable
;
157 return EFI_UNSUPPORTED
;
161 // Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the contect of PrePeiCore
162 EFI_GUID mArmMpCoreInfoPpiGuid
= ARM_MP_CORE_INFO_PPI_GUID
;
163 ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi
= { PrePeiCoreGetMpCoreInfo
};
165 EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable
[] = {
167 EFI_PEI_PPI_DESCRIPTOR_PPI
,
168 &mArmMpCoreInfoPpiGuid
,
174 ArmPlatformGetPlatformPpiList (
175 OUT UINTN
*PpiListSize
,
176 OUT EFI_PEI_PPI_DESCRIPTOR
**PpiList
179 *PpiListSize
= sizeof(gPlatformPpiTable
);
180 *PpiList
= gPlatformPpiTable
;