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

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 f6b89648f9a5e841d4476c831a17bdd4b036801a..b32f4ffb55375b07de49f74926e551156b8dd33b 100644 (file)
--- 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