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authoroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2011-12-06 16:32:11 +0000
committeroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2011-12-06 16:32:11 +0000
commit8234441688bbdc987d9514a785724270d2739b33 (patch)
tree02e7988946878655f3e360af19c444c2bf88b53c /ArmPlatformPkg
parenta62da87e953202951577a246e59a95be39428707 (diff)
downloadedk2-platforms-8234441688bbdc987d9514a785724270d2739b33.tar.xz
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
Diffstat (limited to 'ArmPlatformPkg')
-rw-r--r--ArmPlatformPkg/Sec/Sec.c9
1 files changed, 5 insertions, 4 deletions
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