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-rw-r--r--arch/arm/mach-highbank/highbank.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index dc5d6becd8c7..88815795fe26 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -115,6 +115,7 @@ static int highbank_platform_notifier(struct notifier_block *nb,
{
struct resource *res;
int reg = -1;
+ u32 val;
struct device *dev = __dev;
if (event != BUS_NOTIFY_ADD_DEVICE)
@@ -141,10 +142,10 @@ static int highbank_platform_notifier(struct notifier_block *nb,
return NOTIFY_DONE;
if (of_property_read_bool(dev->of_node, "dma-coherent")) {
- writel(0xff31, sregs_base + reg);
+ val = readl(sregs_base + reg);
+ writel(val | 0xff01, sregs_base + reg);
set_dma_ops(dev, &arm_coherent_dma_ops);
- } else
- writel(0, sregs_base + reg);
+ }
return NOTIFY_OK;
}