ArmPlatformPkg: Minor code changes (comments, misspellings, coding stylei, line endings)
[mirror_edk2.git] / ArmPlatformPkg / ArmVExpressPkg / Library / ArmVExpressLibRTSM / RTSMSec.c
1 /** @file
2 *
3 * Copyright (c) 2011-2012, 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
20 #include <Drivers/PL310L2Cache.h>
21 #include <Drivers/SP804Timer.h>
22
23 #include <ArmPlatform.h>
24
25 /**
26 Initialize the Secure peripherals and memory regions
27
28 If Trustzone is supported by your platform then this function makes the required initialization
29 of the secure peripherals and memory regions.
30
31 **/
32 VOID
33 ArmPlatformTrustzoneInit (
34 VOID
35 )
36 {
37 // No TZPC or TZASC on RTSM to initialize
38 }
39
40 /**
41 Initialize controllers that must setup at the early stage
42
43 Some peripherals must be initialized in Secure World.
44 For example, some L2x0 requires to be initialized in Secure World
45
46 **/
47 VOID
48 ArmPlatformSecInitialize (
49 VOID
50 )
51 {
52 // Configure periodic timer (TIMER0) for 1MHz operation
53 MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER0_TIMCLK);
54 // Configure 1MHz clock
55 MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER1_TIMCLK);
56 // Configure SP810 to use 1MHz clock and disable
57 MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER2_EN, SP810_SYS_CTRL_TIMER2_TIMCLK);
58 // Configure SP810 to use 1MHz clock and disable
59 MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER3_EN, SP810_SYS_CTRL_TIMER3_TIMCLK);
60 }
61
62 /**
63 Call before jumping to Normal World
64
65 This function allows the firmware platform to do extra actions before
66 jumping to the Normal World
67
68 **/
69 VOID
70 ArmPlatformSecExtraAction (
71 IN UINTN MpId,
72 OUT UINTN* JumpAddress
73 )
74 {
75 *JumpAddress = PcdGet32(PcdFvBaseAddress);
76 }