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ArmPlatformPkg/PrePi: Removed magic values 

Introduced CPSR (Coprocessor Status Register) definitions

Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14097 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2013-01-25 12:05:17 +00:00
parent c3adcc9755
commit 063ad84e20
3 changed files with 24 additions and 7 deletions
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17
ArmPkg/Include/Chipset/ArmV7.h
View File

@ -1,7 +1,7 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2013, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -26,6 +26,21 @@
#define DOMAIN_ACCESS_CONTROL_RESERVED(a) (2UL << (2 * (a)))
#define DOMAIN_ACCESS_CONTROL_MANAGER(a) (3UL << (2 * (a)))
// CPSR - Coprocessor Status Register definitions
#define CPSR_MODE_USER 0x10
#define CPSR_MODE_FIQ 0x11
#define CPSR_MODE_IRQ 0x12
#define CPSR_MODE_SVC 0x13
#define CPSR_MODE_ABORT 0x17
#define CPSR_MODE_HYP 0x1A
#define CPSR_MODE_UNDEFINED 0x1B
#define CPSR_MODE_SYSTEM 0x1F
#define CPSR_MODE_MASK 0x1F
#define CPSR_ASYNC_ABORT (1 << 8)
#define CPSR_IRQ (1 << 7)
#define CPSR_FIQ (1 << 6)
// CPACR - Coprocessor Access Control Register definitions
#define CPACR_CP_DENIED(cp) 0x00
#define CPACR_CP_PRIV(cp) ((0x1 << ((cp) << 1)) & 0x0FFFFFFF)

7
ArmPlatformPkg/PrePi/ModuleEntryPoint.S
View File

@ -1,5 +1,5 @@
//
// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@ -16,6 +16,8 @@
#include <Library/PcdLib.h>
#include <AutoGen.h>
#include <Chipset/ArmV7.h>
.text
.align 3
@ -35,8 +37,7 @@ ASM_PFX(_ModuleEntryPoint):
_SetSVCMode:
// Enter SVC mode, Disable FIQ and IRQ
//TODO: remove hardcoded values
mov r1, #0x13|0x80|0x40
mov r1, #(CPSR_MODE_SVC | CPSR_IRQ | CPSR_FIQ)
msr CPSR_c, r1
// Check if we can install the stack at the top of the System Memory or if we need

7
ArmPlatformPkg/PrePi/ModuleEntryPoint.asm
View File

@ -1,5 +1,5 @@
//
// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@ -16,6 +16,8 @@
#include <Library/PcdLib.h>
#include <AutoGen.h>
#include <Chipset/ArmV7.h>
INCLUDE AsmMacroIoLib.inc
IMPORT CEntryPoint
@ -37,8 +39,7 @@ _ModuleEntryPoint
_SetSVCMode
// Enter SVC mode, Disable FIQ and IRQ
//TODO: remove hardcoded values
mov r1, #0x13 :OR: 0x80 :OR: 0x40
mov r1, #(CPSR_MODE_SVC :OR: CPSR_IRQ :OR: CPSR_FIQ)
msr CPSR_c, r1
// Check if we can install the stack at the top of the System Memory or if we need