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Diffstat (limited to 'arch/arm/kernel/smp_scu.c')
-rw-r--r--arch/arm/kernel/smp_scu.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c
index 7f24ee9d7330..d3831f616ee9 100644
--- a/arch/arm/kernel/smp_scu.c
+++ b/arch/arm/kernel/smp_scu.c
@@ -12,6 +12,7 @@
#include <linux/io.h>
#include <asm/smp_scu.h>
+#include <asm/cacheflush.h>
#define SCU_CTRL 0x00
#define SCU_CONFIG 0x04
@@ -38,4 +39,10 @@ void __init scu_enable(void __iomem *scu_base)
scu_ctrl = __raw_readl(scu_base + SCU_CTRL);
scu_ctrl |= 1;
__raw_writel(scu_ctrl, scu_base + SCU_CTRL);
+
+ /*
+ * Ensure that the data accessed by CPU0 before the SCU was
+ * initialised is visible to the other CPUs.
+ */
+ flush_cache_all();
}