diff options
| -rw-r--r-- | arch/arm/mach-imx/system.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index 93d4a9a39353..105d1ce4ed9d 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -106,6 +106,9 @@ void __init imx_init_l2cache(void) goto out; } + if (readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN) + goto skip_if_enabled; + /* Configure the L2 PREFETCH and POWER registers */ val = readl_relaxed(l2x0_base + L310_PREFETCH_CTRL); val |= 0x70800000; @@ -122,6 +125,7 @@ void __init imx_init_l2cache(void) val &= ~(1 << 30 | 1 << 23); writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); +skip_if_enabled: iounmap(l2x0_base); of_node_put(np); |