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990e25aa | 1 | ;------------------------------------------------------------------------------ \r |
2 | ;\r | |
3 | ; CpuSleep() for ARM\r | |
4 | ;\r | |
de2d3419 HT |
5 | ; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r |
6 | ; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
7 | ; This program and the accompanying materials\r | |
990e25aa | 8 | ; are licensed and made available under the terms and conditions of the BSD License\r |
9 | ; which accompanies this distribution. The full text of the license may be found at\r | |
2fc59a00 | 10 | ; http://opensource.org/licenses/bsd-license.php.\r |
990e25aa | 11 | ;\r |
12 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | ;\r | |
15 | ;------------------------------------------------------------------------------\r | |
16 | \r | |
17 | EXPORT CpuSleep\r | |
18 | AREA cpu_sleep, CODE, READONLY\r | |
19 | \r | |
20 | ;/**\r | |
21 | ; Places the CPU in a sleep state until an interrupt is received.\r | |
22 | ;\r | |
23 | ; Places the CPU in a sleep state until an interrupt is received. If interrupts\r | |
24 | ; are disabled prior to calling this function, then the CPU will be placed in a\r | |
25 | ; sleep state indefinitely.\r | |
26 | ;\r | |
27 | ;**/\r | |
28 | ;VOID\r | |
29 | ;EFIAPI\r | |
30 | ;CpuSleep (\r | |
31 | ; VOID\r | |
32 | ; );\r | |
33 | ;\r | |
34 | CpuSleep\r | |
35 | MOV r0,#0\r | |
36 | MCR p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction\r | |
37 | BX LR\r | |
38 | \r | |
39 | END\r |