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88d4f51d | 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 <Library/ArmCpuLib.h>\r | |
16 | #include <Library/ArmGicLib.h>\r | |
17 | #include <Library/PcdLib.h>\r | |
18 | #include <Chipset/ArmV7.h>\r | |
19 | \r | |
20 | INCLUDE AsmMacroIoLib.inc\r | |
21 | \r | |
22 | EXPORT ArmCpuSynchronizeWait\r | |
23 | IMPORT CArmCpuSynchronizeWait\r | |
24 | // Dirty hack to get the Fixed value of GicDistributorBase\r | |
25 | IMPORT _gPcd_FixedAtBuild_PcdGicDistributorBase\r | |
26 | \r | |
27 | PRESERVE8\r | |
28 | AREA ArmCortexA15Helper, CODE, READONLY\r | |
29 | \r | |
30 | // VOID\r | |
31 | // ArmCpuSynchronizeWait (\r | |
32 | // IN ARM_CPU_SYNCHRONIZE_EVENT Event\r | |
33 | // );\r | |
34 | ArmCpuSynchronizeWait\r | |
35 | cmp r0, #ARM_CPU_EVENT_BOOT_MEM_INIT\r | |
36 | // The SCU enabled is the event to tell us the Init Boot Memory is initialized\r | |
37 | beq ArmWaitGicDistributorEnabled\r | |
81be6e07 | 38 | // Case when the stack has been set up\r |
39 | push {r1,lr}\r | |
40 | LoadConstantToReg (CArmCpuSynchronizeWait, r1)\r | |
41 | blx r1\r | |
42 | pop {r1,lr}\r | |
43 | bx lr\r | |
44 | \r | |
88d4f51d | 45 | \r |
46 | // IN None\r | |
47 | ArmWaitGicDistributorEnabled\r | |
48 | LoadConstantToReg (_gPcd_FixedAtBuild_PcdGicDistributorBase, r0)\r | |
49 | ldr r0, [r0]\r | |
50 | _WaitGicDistributor\r | |
51 | ldr r1, [r0, #ARM_GIC_ICDDCR]\r | |
52 | cmp r1, #1\r | |
53 | bne _WaitGicDistributor\r | |
54 | bx lr\r | |
55 | \r | |
56 | END\r |