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authorWill Deacon <will.deacon@arm.com>2012-12-18 17:53:14 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2013-01-29 16:56:37 +0000
commite790f1deb26a2e23f05dee0b9a5d4f764c3d7ea7 (patch)
treea562c97caa8662497320ef03930d37cde1395d97 /arch/arm64/kernel/setup.c
parentd329de3f2ada413c7cd16e1dc1d70d4abc7309e9 (diff)
arm64: psci: add support for PSCI invocations from the kernel
This patch adds support for the Power State Coordination Interface defined by ARM, allowing Linux to request CPU-centric power-management operations from firmware implementing the PSCI protocol. Signed-off-by: Will Deacon <will.deacon@arm.com> [Marc: s/u32/u64/ in the relevant spots, and switch from an initcall to an simpler init function] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/setup.c')
-rw-r--r--arch/arm64/kernel/setup.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 894c1e5ed609..113db863f832 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -50,6 +50,7 @@
#include <asm/tlbflush.h>
#include <asm/traps.h>
#include <asm/memblock.h>
+#include <asm/psci.h>
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
@@ -261,6 +262,8 @@ void __init setup_arch(char **cmdline_p)
unflatten_device_tree();
+ psci_init();
+
#ifdef CONFIG_SMP
smp_init_cpus();
#endif