Enable the SMC instruction so that the kernel can use the psci code
Signed-off-by: Arnab Basu <arnab_b...@rocketmail.com>
Cc: Bhupesh Sharma <bhupesh.sha...@freescale.com>
Cc: Marc Zyngier <marc.zyng...@arm.com>
---
arch/arm/include/asm/macro.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h
index 1c8c425..e36f043 100644
--- a/arch/arm/include/asm/macro.h
+++ b/arch/arm/include/asm/macro.h
@@ -106,8 +106,13 @@ lr .req x30
.endm
.macro armv8_switch_to_el2_m, xreg1
+#ifdef CONFIG_ARMV8_PSCI
+ /* 64bit EL2 | HCE | RES1 (Bits[5:4]) | Non-secure EL0/EL1 */
+ mov \xreg1, #0x531
+#else
/* 64bit EL2 | HCE | SMD | RES1 (Bits[5:4]) | Non-secure EL0/EL1 */
mov \xreg1, #0x5b1
+#endif
msr scr_el3, \xreg1
msr cptr_el3, xzr /* Disable coprocessor traps to EL3 */
mov \xreg1, #0x33ff
--
1.9.1
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