[PATCH] arm: berlin: remove non-necessary flush_cache_all()

Jisheng Zhang
2018-05-07T07:44:54Z

I believe the flush_cache_all() after scu_enable() is to "Ensure that
the data accessed by CPU0 before the SCU was initialised is visible
to the other CPUs." as commented in scu_enable(). So flush_cache_all()
here is a duplication of the one in scu_enable(), remove it.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
arch/arm/mach-berlin/platsmp.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c
index 7586b7aec272..a8ae4a566d99 100644
--- a/arch/arm/mach-berlin/platsmp.c
+++ b/arch/arm/mach-berlin/platsmp.c
@@ -81,7 +81,6 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
goto unmap_scu;

scu_enable(scu_base);
- flush_cache_all();

/*
* Write the first instruction the CPU will execute after being reset
--
2.17.0