| // | |
| // Copyright (c) 2011-2012, 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 | |
| // 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/ArmCpuLib.h> | |
| #include <Chipset/ArmCortexA9.h> | |
| .text | |
| .align 3 | |
| GCC_ASM_EXPORT(ArmGetScuBaseAddress) | |
| // IN None | |
| // OUT r0 = SCU Base Address | |
| ASM_PFX(ArmGetScuBaseAddress): | |
| // Read Configuration Base Address Register. ArmCBar cannot be called to get | |
| // the Configuration BAR as a stack is not necessary setup. The SCU is at the | |
| // offset 0x0000 from the Private Memory Region. | |
| mrc p15, 4, r0, c15, c0, 0 | |
| bx lr |