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authorSergey Temerkhanov <s.temerkhanov@gmail.com>2015-10-14 09:55:44 -0700
committerTom Rini <trini@konsulko.com>2016-01-19 22:25:35 +0000
commitba5648cd91b010a9288798472a6d51b137fff89d (patch)
treefb1390a6333660a17f6d3bc0c448a8a7636986d1 /arch
parent19de81502be9e4dd1132b4b9641f66a587b8b0e2 (diff)
armv8: Add read_mpidr() function
This patch adds the read_mpidr() function which returns the MPIDR_EL1 register value Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/system.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 71b31085b4..5d66fa00b6 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -72,6 +72,17 @@ static inline void set_sctlr(unsigned int val)
asm volatile("isb");
}
+static inline unsigned long read_mpidr(void)
+{
+ unsigned long val;
+
+ asm volatile("mrs %0, mpidr_el1" : "=r" (val));
+
+ return val;
+}
+
+#define BSP_COREID 0
+
void __asm_flush_dcache_all(void);
void __asm_invalidate_dcache_all(void);
void __asm_flush_dcache_range(u64 start, u64 end);