diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-12-06 16:32:11 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-12-06 16:32:11 +0000 |
| commit | 8234441688bbdc987d9514a785724270d2739b33 (patch) | |
| tree | 02e7988946878655f3e360af19c444c2bf88b53c | |
| parent | a62da87e953202951577a246e59a95be39428707 (diff) | |
| download | edk2-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
| -rw-r--r-- | ArmPlatformPkg/Sec/Sec.c | 9 |
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 |