| 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 | .text\r |
| 21 | .align 3\r |
| 22 | \r |
| 23 | GCC_ASM_EXPORT(ArmCpuSynchronizeWait)\r |
| 24 | GCC_ASM_IMPORT(CArmCpuSynchronizeWait)\r |
| 25 | // Dirty hack to get the Fixed value of GicDistributorBase\r |
| 26 | GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdGicDistributorBase)\r |
| 27 | \r |
| 28 | \r |
| 29 | // VOID\r |
| 30 | // ArmCpuSynchronizeWait (\r |
| 31 | // IN ARM_CPU_SYNCHRONIZE_EVENT Event\r |
| 32 | // );\r |
| 33 | ASM_PFX(ArmCpuSynchronizeWait):\r |
| 34 | cmp r0, #ARM_CPU_EVENT_BOOT_MEM_INIT\r |
| 35 | // The SCU enabled is the event to tell us the Init Boot Memory is initialized\r |
| 36 | beq ArmWaitGicDistributorEnabled\r |
| 89bbce11 |
37 | bx ASM_PFX(CArmCpuSynchronizeWait)\r |
| 88d4f51d |
38 | \r |
| 39 | // IN None\r |
| 40 | ArmWaitGicDistributorEnabled:\r |
| 89bbce11 |
41 | LoadConstantToReg (ASM_PFX(_gPcd_FixedAtBuild_PcdGicDistributorBase), r0)\r |
| 88d4f51d |
42 | ldr r0, [r0]\r |
| 43 | _WaitGicDistributor:\r |
| 44 | ldr r1, [r0, #ARM_GIC_ICDDCR]\r |
| 45 | cmp r1, #1\r |
| 46 | bne _WaitGicDistributor\r |
| 47 | bx lr\r |
projects / mirror_edk2.git / blame