Merge git://git.infradead.org/iommu-2.6

[karo-tx-linux.git] / arch / arm / mach-kirkwood / pcie.c

diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 513ad3102d7c192d2fdc00229b6cdb527b002d87..ca294ff6d5be02a4d6103a16db7e4666fa80c83c 100644 (file)
--- 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);
 }