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Diffstat (limited to 'arch/arm/mach-kirkwood/pcie.c')
-rw-r--r--arch/arm/mach-kirkwood/pcie.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 513ad3102d7c..ca294ff6d5be 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -18,8 +18,16 @@
#include <mach/bridge-regs.h>
#include "common.h"
+void kirkwood_enable_pcie(void)
+{
+ u32 curr = readl(CLOCK_GATING_CTRL);
+ if (!(curr & CGC_PEX0))
+ writel(curr | CGC_PEX0, CLOCK_GATING_CTRL);
+}
+
void __init kirkwood_pcie_id(u32 *dev, u32 *rev)
{
+ kirkwood_enable_pcie();
*dev = orion_pcie_dev_id((void __iomem *)PCIE_VIRT_BASE);
*rev = orion_pcie_rev((void __iomem *)PCIE_VIRT_BASE);
}