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| author | Dan Williams <dan.j.williams@intel.com> | 2009-12-22 17:21:47 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-12-22 17:21:47 -0700 |
| commit | f80ca163d65903276bec7045a484a79c0897eb2d (patch) | |
| tree | 97c7d61d43248b9db0757a76af80ff58b98b5599 /arch/arm/kernel/smp_scu.c | |
| parent | 0794ec8ce327ec74416b569b8fb1951274693700 (diff) | |
| parent | a6d52d70677e99bdb89b6921c265d0a58c22e597 (diff) | |
Merge branch 'ioat' into fixes
Diffstat (limited to 'arch/arm/kernel/smp_scu.c')
| -rw-r--r-- | arch/arm/kernel/smp_scu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c index d3831f616ee..9ab4149bd98 100644 --- a/arch/arm/kernel/smp_scu.c +++ b/arch/arm/kernel/smp_scu.c @@ -37,6 +37,10 @@ void __init scu_enable(void __iomem *scu_base) u32 scu_ctrl; scu_ctrl = __raw_readl(scu_base + SCU_CTRL); + /* already enabled? */ + if (scu_ctrl & 1) + return; + scu_ctrl |= 1; __raw_writel(scu_ctrl, scu_base + SCU_CTRL); |