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1d5d0ae9 | 1 | /** @file |
2 | * | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved. | |
4 | * | |
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 | |
9 | * | |
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. | |
12 | * | |
13 | **/ | |
14 | ||
15 | #include <Library/IoLib.h> | |
16 | #include <Library/ArmPlatformLib.h> | |
17 | #include <Library/DebugLib.h> | |
18 | #include <Library/PcdLib.h> | |
19 | #include <Drivers/PL341Dmc.h> | |
20 | ||
21 | /** | |
22 | Return if Trustzone is supported by your platform | |
23 | ||
24 | A non-zero value must be returned if you want to support a Secure World on your platform. | |
25 | ArmPlatformTrustzoneInit() will later set up the secure regions. | |
26 | This function can return 0 even if Trustzone is supported by your processor. In this case, | |
27 | the platform will continue to run in Secure World. | |
28 | ||
29 | @return A non-zero value if Trustzone supported. | |
30 | ||
31 | **/ | |
aa01abaa | 32 | UINTN |
33 | ArmPlatformTrustzoneSupported ( | |
34 | VOID | |
35 | ) | |
36 | { | |
1d5d0ae9 | 37 | // There is no Trustzone controllers (TZPC & TZASC) and no Secure Memory on RTSM |
aa01abaa | 38 | return FALSE; |
1d5d0ae9 | 39 | } |
40 | ||
41 | /** | |
42 | Initialize the Secure peripherals and memory regions | |
43 | ||
44 | If Trustzone is supported by your platform then this function makes the required initialization | |
45 | of the secure peripherals and memory regions. | |
46 | ||
47 | **/ | |
aa01abaa | 48 | VOID |
49 | ArmPlatformTrustzoneInit ( | |
50 | VOID | |
51 | ) | |
52 | { | |
53 | ASSERT(FALSE); | |
1d5d0ae9 | 54 | } |
55 | ||
56 | /** | |
57 | Remap the memory at 0x0 | |
58 | ||
59 | Some platform requires or gives the ability to remap the memory at the address 0x0. | |
60 | This function can do nothing if this feature is not relevant to your platform. | |
61 | ||
62 | **/ | |
aa01abaa | 63 | VOID |
64 | ArmPlatformBootRemapping ( | |
65 | VOID | |
66 | ) | |
67 | { | |
1d5d0ae9 | 68 | // Disable memory remapping and return to normal mapping |
aa01abaa | 69 | MmioOr32 (ARM_EB_SYSCTRL, BIT8); //EB_SP810_CTRL_BASE |
1d5d0ae9 | 70 | } |
71 | ||
a534d714 | 72 | /** |
73 | Return the current Boot Mode | |
74 | ||
75 | This function returns the boot reason on the platform | |
76 | ||
77 | **/ | |
78 | EFI_BOOT_MODE | |
79 | ArmPlatformGetBootMode ( | |
80 | VOID | |
81 | ) | |
82 | { | |
83 | return BOOT_WITH_FULL_CONFIGURATION; | |
84 | } | |
85 | ||
8e06b586 | 86 | /** |
87 | Initialize controllers that must setup at the early stage | |
88 | ||
89 | Some peripherals must be initialized in Secure World. | |
90 | For example, some L2x0 requires to be initialized in Secure World | |
91 | ||
92 | **/ | |
93 | VOID | |
aa01abaa | 94 | ArmPlatformSecInitialize ( |
8e06b586 | 95 | VOID |
96 | ) { | |
97 | // Do nothing yet | |
98 | } | |
99 | ||
aa01abaa | 100 | /** |
101 | Initialize controllers that must setup in the normal world | |
102 | ||
103 | This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim | |
104 | in the PEI phase. | |
105 | ||
106 | **/ | |
107 | VOID | |
108 | ArmPlatformNormalInitialize ( | |
109 | VOID | |
110 | ) | |
111 | { | |
112 | // Nothing to do here | |
113 | } | |
114 | ||
1d5d0ae9 | 115 | /** |
116 | Initialize the system (or sometimes called permanent) memory | |
117 | ||
118 | This memory is generally represented by the DRAM. | |
119 | ||
120 | **/ | |
aa01abaa | 121 | VOID |
122 | ArmPlatformInitializeSystemMemory ( | |
123 | VOID | |
124 | ) | |
125 | { | |
126 | // We do not need to initialize the System Memory on RTSM | |
1d5d0ae9 | 127 | } |