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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> | |
23792dea | 19 | |
1d5d0ae9 | 20 | #include <Drivers/PL341Dmc.h> |
23792dea | 21 | #include <Drivers/SP804Timer.h> |
1d5d0ae9 | 22 | |
5cc45b70 | 23 | #include <ArmPlatform.h> |
24 | ||
1d5d0ae9 | 25 | /** |
26 | Return if Trustzone is supported by your platform | |
27 | ||
28 | A non-zero value must be returned if you want to support a Secure World on your platform. | |
29 | ArmPlatformTrustzoneInit() will later set up the secure regions. | |
30 | This function can return 0 even if Trustzone is supported by your processor. In this case, | |
31 | the platform will continue to run in Secure World. | |
32 | ||
33 | @return A non-zero value if Trustzone supported. | |
34 | ||
35 | **/ | |
aa01abaa | 36 | UINTN |
37 | ArmPlatformTrustzoneSupported ( | |
38 | VOID | |
39 | ) | |
40 | { | |
1d5d0ae9 | 41 | // There is no Trustzone controllers (TZPC & TZASC) and no Secure Memory on RTSM |
aa01abaa | 42 | return FALSE; |
1d5d0ae9 | 43 | } |
44 | ||
45 | /** | |
46 | Initialize the Secure peripherals and memory regions | |
47 | ||
48 | If Trustzone is supported by your platform then this function makes the required initialization | |
49 | of the secure peripherals and memory regions. | |
50 | ||
51 | **/ | |
aa01abaa | 52 | VOID |
53 | ArmPlatformTrustzoneInit ( | |
54 | VOID | |
55 | ) | |
56 | { | |
57 | ASSERT(FALSE); | |
1d5d0ae9 | 58 | } |
59 | ||
60 | /** | |
61 | Remap the memory at 0x0 | |
62 | ||
63 | Some platform requires or gives the ability to remap the memory at the address 0x0. | |
64 | This function can do nothing if this feature is not relevant to your platform. | |
65 | ||
66 | **/ | |
aa01abaa | 67 | VOID |
68 | ArmPlatformBootRemapping ( | |
69 | VOID | |
70 | ) | |
71 | { | |
1d5d0ae9 | 72 | // Disable memory remapping and return to normal mapping |
aa01abaa | 73 | MmioOr32 (ARM_EB_SYSCTRL, BIT8); //EB_SP810_CTRL_BASE |
1d5d0ae9 | 74 | } |
75 | ||
a534d714 | 76 | /** |
77 | Return the current Boot Mode | |
78 | ||
79 | This function returns the boot reason on the platform | |
80 | ||
81 | **/ | |
82 | EFI_BOOT_MODE | |
83 | ArmPlatformGetBootMode ( | |
84 | VOID | |
85 | ) | |
86 | { | |
87 | return BOOT_WITH_FULL_CONFIGURATION; | |
88 | } | |
89 | ||
8e06b586 | 90 | /** |
91 | Initialize controllers that must setup at the early stage | |
92 | ||
93 | Some peripherals must be initialized in Secure World. | |
94 | For example, some L2x0 requires to be initialized in Secure World | |
95 | ||
96 | **/ | |
97 | VOID | |
aa01abaa | 98 | ArmPlatformSecInitialize ( |
8e06b586 | 99 | VOID |
100 | ) { | |
101 | // Do nothing yet | |
102 | } | |
103 | ||
aa01abaa | 104 | /** |
105 | Initialize controllers that must setup in the normal world | |
106 | ||
5cc45b70 | 107 | This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei |
aa01abaa | 108 | in the PEI phase. |
109 | ||
110 | **/ | |
111 | VOID | |
112 | ArmPlatformNormalInitialize ( | |
113 | VOID | |
114 | ) | |
115 | { | |
23792dea | 116 | // Configure periodic timer (TIMER0) for 1MHz operation |
117 | MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER0_TIMCLK); | |
118 | // Configure 1MHz clock | |
119 | MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER1_TIMCLK); | |
120 | // configure SP810 to use 1MHz clock and disable | |
121 | MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER2_EN, SP810_SYS_CTRL_TIMER2_TIMCLK); | |
122 | // Configure SP810 to use 1MHz clock and disable | |
123 | MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER3_EN, SP810_SYS_CTRL_TIMER3_TIMCLK); | |
aa01abaa | 124 | } |
125 | ||
1d5d0ae9 | 126 | /** |
127 | Initialize the system (or sometimes called permanent) memory | |
128 | ||
129 | This memory is generally represented by the DRAM. | |
130 | ||
131 | **/ | |
aa01abaa | 132 | VOID |
133 | ArmPlatformInitializeSystemMemory ( | |
134 | VOID | |
135 | ) | |
136 | { | |
137 | // We do not need to initialize the System Memory on RTSM | |
1d5d0ae9 | 138 | } |