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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
This commit is contained in:
oliviermartin 2011-12-06 16:32:11 +00:00
parent a62da87e95
commit 8234441688
1 changed files with 5 additions and 4 deletions
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9
ArmPlatformPkg/Sec/Sec.c
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@ -47,6 +47,11 @@ CEntryPoint (
// CPU specific settings // CPU specific settings
ArmCpuSetup (MpId); 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 // Primary CPU clears out the SCU tag RAMs, secondaries wait
if (IS_PRIMARY_CORE(MpId)) { if (IS_PRIMARY_CORE(MpId)) {
if (ArmIsMpCore()) { if (ArmIsMpCore()) {
@ -82,10 +87,6 @@ CEntryPoint (
// Enable Full Access to CoProcessors // Enable Full Access to CoProcessors
ArmWriteCPACR (CPACR_CP_FULL_ACCESS); ArmWriteCPACR (CPACR_CP_FULL_ACCESS);
if (FixedPcdGet32 (PcdVFPEnabled)) {
ArmEnableVFP();
}
if (IS_PRIMARY_CORE(MpId)) { if (IS_PRIMARY_CORE(MpId)) {
// Initialize peripherals that must be done at the early stage // Initialize peripherals that must be done at the early stage
// Example: Some L2x0 controllers must be initialized in Secure World // Example: Some L2x0 controllers must be initialized in Secure World