This patch adds the read_mpidr() function which returns the
MPIDR_EL1 register value
Signed-off-by: Sergey Temerkhanov <s.temerkha...@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakun...@cavium.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None
arch/arm/include/asm/system.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 868ea54..323c43e 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -71,6 +71,17 @@ 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);
--
2.2.0
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