summaryrefslogtreecommitdiff
path: root/BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S
diff options
context:
space:
mode:
Diffstat (limited to 'BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S')
-rw-r--r--BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S85
1 files changed, 0 insertions, 85 deletions
diff --git a/BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S b/BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S
deleted file mode 100644
index b656c1e040..0000000000
--- a/BeagleBoardPkg/Sec/Arm/ModuleEntryPoint.S
+++ /dev/null
@@ -1,85 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
-#
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-#------------------------------------------------------------------------------
-
-#include <AsmMacroIoLib.h>
-#include <Library/PcdLib.h>
-
-.text
-.align 3
-
-.globl ASM_PFX(CEntryPoint)
-GCC_ASM_EXPORT(_ModuleEntryPoint)
-
-ASM_PFX(_ModuleEntryPoint):
-
- //Disable L2 cache
- mrc p15, 0, r0, c1, c0, 1 // read Auxiliary Control Register
- bic r0, r0, #0x00000002 // disable L2 cache
- mcr p15, 0, r0, c1, c0, 1 // store Auxiliary Control Register
-
- //Enable Strict alignment checking & Instruction cache
- mrc p15, 0, r0, c1, c0, 0
- bic r0, r0, #0x00002300 /* clear bits 13, 9:8 (--V- --RS) */
- bic r0, r0, #0x00000005 /* clear bits 0, 2 (---- -C-M) */
- orr r0, r0, #0x00000002 /* set bit 1 (A) Align */
- orr r0, r0, #0x00001000 /* set bit 12 (I) enable I-Cache */
- mcr p15, 0, r0, c1, c0, 0
-
- // Enable NEON register in case folks want to use them for optimizations (CopyMem)
- mrc p15, 0, r0, c1, c0, 2
- orr r0, r0, #0x00f00000 // Enable VPF access (V* instructions)
- mcr p15, 0, r0, c1, c0, 2
- mov r0, #0x40000000 // Set EN bit in FPEXC
- mcr p10,#0x7,r0,c8,c0,#0 // msr FPEXC,r0 in ARM assembly
-
-
- // Set CPU vectors to start of DRAM
- LoadConstantToReg (FixedPcdGet32(PcdCpuVectorBaseAddress) ,r0) // Get vector base
- mcr p15, 0, r0, c12, c0, 0
- isb // Sync changes to control registers
-
- // Fill vector table with branchs to current pc (jmp $)
- ldr r1, ShouldNeverGetHere
- movs r2, #0
-FillVectors:
- str r1, [r0, r2]
- adds r2, r2, #4
- cmp r2, #32
- bne FillVectors
-
- /* before we call C code, lets setup the stack pointer in internal RAM */
-stack_pointer_setup:
-
- //
- // Set stack based on PCD values. Need to do it this way to make C code work
- // when it runs from FLASH.
- //
- LoadConstantToReg (FixedPcdGet32(PcdPrePiStackBase) ,r2) /* stack base arg2 */
- LoadConstantToReg (FixedPcdGet32(PcdPrePiStackSize) ,r3) /* stack size arg3 */
- add r4, r2, r3
-
- //Enter SVC mode and set up SVC stack pointer
- mov r0,#0x13|0x80|0x40
- msr CPSR_c,r0
- mov r13,r4
-
- // Call C entry point
- LoadConstantToReg (FixedPcdGet32(PcdMemorySize) ,r1) /* memory size arg1 */
- LoadConstantToReg (FixedPcdGet32(PcdMemoryBase) ,r0) /* memory size arg0 */
- blx ASM_PFX(CEntryPoint) /* Assume C code is thumb */
-
-ShouldNeverGetHere:
- /* _CEntryPoint should never return */
- b ShouldNeverGetHere
-