commit c80aba803a9aa131f997f62a71ab453e456d08a8
author Suzuki K Poulose <suzuki.poulose@arm.com> Mon Apr 18 10:28:34 2016 +0100
committer Will Deacon <will.deacon@arm.com> Wed Apr 20 12:22:42 2016 +0100
tree f308b668d7718f4c18f5c964362b0fa571461b42
parent 752835019c15f720a51433e6bc1c5c515c01d1a2

arm64: Add helpers for detecting AArch32 support at EL0

Adds a helper to extract the support for AArch32 at EL0

Tested-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

arch/arm64/include/asm/sysreg.h

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 19182ef..d39d434 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -115,6 +115,7 @@
 #define ID_AA64PFR0_ASIMD_SUPPORTED	0x0
 #define ID_AA64PFR0_EL1_64BIT_ONLY	0x1
 #define ID_AA64PFR0_EL0_64BIT_ONLY	0x1
+#define ID_AA64PFR0_EL0_32BIT_64BIT	0x2
 
 /* id_aa64mmfr0 */
 #define ID_AA64MMFR0_TGRAN4_SHIFT	28