Commit 6050d181 authored by Shawn Guo's avatar Shawn Guo

ARM: imx: reset core along with enable/disable operation

From hotplug stress test result, resetting core during enable/disable
operation can improve cpu hotplug stability.  So let's set
SRC reset bit in imx_enable_cpu() for the core when its enable bit is
accessed.
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent fcd75f92
...@@ -91,6 +91,7 @@ void imx_enable_cpu(int cpu, bool enable) ...@@ -91,6 +91,7 @@ void imx_enable_cpu(int cpu, bool enable)
spin_lock(&scr_lock); spin_lock(&scr_lock);
val = readl_relaxed(src_base + SRC_SCR); val = readl_relaxed(src_base + SRC_SCR);
val = enable ? val | mask : val & ~mask; val = enable ? val | mask : val & ~mask;
val |= 1 << (BP_SRC_SCR_CORE1_RST + cpu - 1);
writel_relaxed(val, src_base + SRC_SCR); writel_relaxed(val, src_base + SRC_SCR);
spin_unlock(&scr_lock); spin_unlock(&scr_lock);
} }
......
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