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1bfda055 | 1 | #\r |
2 | # Copyright (c) 2011, ARM Limited. All rights reserved.\r | |
3 | # \r | |
4 | # This program and the accompanying materials \r | |
5 | # are licensed and made available under the terms and conditions of the BSD License \r | |
6 | # which accompanies this distribution. The full text of the license may be found at \r | |
7 | # http:#opensource.org/licenses/bsd-license.php \r | |
8 | #\r | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | #\r | |
12 | #\r | |
13 | \r | |
14 | #include <AsmMacroIoLib.h>\r | |
15 | #include <Base.h>\r | |
16 | #include <Library/PcdLib.h>\r | |
17 | #include <Chipset/ArmV7.h>\r | |
18 | #include <AutoGen.h>\r | |
19 | #.include AsmMacroIoLib.inc\r | |
20 | \r | |
21 | .text\r | |
22 | .align 2\r | |
23 | \r | |
24 | GCC_ASM_EXPORT(ArmIsScuEnable)\r | |
25 | GCC_ASM_EXPORT(ArmGetScuBaseAddress)\r | |
26 | \r | |
27 | # IN None\r | |
28 | # OUT r0 = SCU Base Address\r | |
29 | ASM_PFX(ArmGetScuBaseAddress):\r | |
30 | # Read Configuration Base Address Register. ArmCBar cannot be called to get\r | |
31 | # the Configuration BAR as a stack is not necessary setup. The SCU is at the\r | |
32 | # offset 0x0000 from the Private Memory Region.\r | |
33 | mrc p15, 4, r0, c15, c0, 0\r | |
34 | bx lr\r | |
35 | \r | |
36 | # IN None\r | |
37 | # OUT r1 = SCU enabled (boolean)\r | |
38 | ASM_PFX(ArmIsScuEnable):\r | |
39 | # Read Configuration Base Address Register. ArmCBar cannot be called to get\r | |
40 | # the Configuration BAR as a stack is not necessary setup. The SCU is at the\r | |
41 | # offset 0x0000 from the Private Memory Region.\r | |
42 | mrc p15, 4, r0, c15, c0, 0\r | |
43 | add r1, r0, #SCU_CONTROL_OFFSET\r | |
44 | ldr r1, [r1]\r | |
45 | and r1, r1, #1\r | |
46 | bx lr\r | |
47 | \r | |
48 | ASM_FUNCTION_REMOVE_IF_UNREFERENCED \r |