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-rw-r--r--arch/arm/plat-orion/pcie.c6
-rw-r--r--include/asm-arm/plat-orion/pcie.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/plat-orion/pcie.c b/arch/arm/plat-orion/pcie.c
index abfda53f1800..ca32c60e14d7 100644
--- a/arch/arm/plat-orion/pcie.c
+++ b/arch/arm/plat-orion/pcie.c
@@ -39,6 +39,7 @@
#define PCIE_CONF_DATA_OFF 0x18fc
#define PCIE_MASK_OFF 0x1910
#define PCIE_CTRL_OFF 0x1a00
+#define PCIE_CTRL_X1_MODE 0x0001
#define PCIE_STAT_OFF 0x1a04
#define PCIE_STAT_DEV_OFFS 20
#define PCIE_STAT_DEV_MASK 0x1f
@@ -62,6 +63,11 @@ int orion_pcie_link_up(void __iomem *base)
return !(readl(base + PCIE_STAT_OFF) & PCIE_STAT_LINK_DOWN);
}
+int __init orion_pcie_x4_mode(void __iomem *base)
+{
+ return !(readl(base + PCIE_CTRL_OFF) & PCIE_CTRL_X1_MODE);
+}
+
int orion_pcie_get_local_bus_nr(void __iomem *base)
{
u32 stat = readl(base + PCIE_STAT_OFF);
diff --git a/include/asm-arm/plat-orion/pcie.h b/include/asm-arm/plat-orion/pcie.h
index 6434ac685d21..e61b7bd97af5 100644
--- a/include/asm-arm/plat-orion/pcie.h
+++ b/include/asm-arm/plat-orion/pcie.h
@@ -14,6 +14,7 @@
u32 orion_pcie_dev_id(void __iomem *base);
u32 orion_pcie_rev(void __iomem *base);
int orion_pcie_link_up(void __iomem *base);
+int orion_pcie_x4_mode(void __iomem *base);
int orion_pcie_get_local_bus_nr(void __iomem *base);
void orion_pcie_set_local_bus_nr(void __iomem *base, int nr);
void orion_pcie_setup(void __iomem *base,