From: oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 6 Dec 2011 16:32:11 +0000 (+0000)
Subject: ArmPlatformPkg/Sec: Enabled VFP (if supported by platform) prior to any library invoc... 
X-Git-Tag: edk2-stable201903~13793
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=8234441688bbdc987d9514a785724270d2739b33

ArmPlatformPkg/Sec: Enabled VFP (if supported by platform) prior to any library invocation

Some compilers uses VFP for some 64bit operation. If the VFP coprocessor is not enabled at
this stage the processor raises an undefined exception.
To prevent this case, the VFP enabling has been moved at the beginning of the platform
initialization phase.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12823 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/ArmPlatformPkg/Sec/Sec.c b/ArmPlatformPkg/Sec/Sec.c
index f6b89648f9..b32f4ffb55 100644
--- a/ArmPlatformPkg/Sec/Sec.c
+++ b/ArmPlatformPkg/Sec/Sec.c
@@ -47,6 +47,11 @@ CEntryPoint (
   // CPU specific settings
   ArmCpuSetup (MpId);
 
+  // Enable Floating Point Coprocessor if supported by the platform
+  if (FixedPcdGet32 (PcdVFPEnabled)) {
+    ArmEnableVFP();
+  }
+	
   // Primary CPU clears out the SCU tag RAMs, secondaries wait
   if (IS_PRIMARY_CORE(MpId)) {
     if (ArmIsMpCore()) {
@@ -82,10 +87,6 @@ CEntryPoint (
   // Enable Full Access to CoProcessors
   ArmWriteCPACR (CPACR_CP_FULL_ACCESS);
 
-  if (FixedPcdGet32 (PcdVFPEnabled)) {
-    ArmEnableVFP();
-  }
-
   if (IS_PRIMARY_CORE(MpId)) {
     // Initialize peripherals that must be done at the early stage
     // Example: Some L2x0 controllers must be initialized in Secure World