1 files changed, 15 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp4xx/cpu.h b/include/asm-arm/arch-ixp4xx/cpu.h
index d2523b326c6c..2fa3d6b8dbb8 100644
--- a/include/asm-arm/arch-ixp4xx/cpu.h
+++ b/include/asm-arm/arch-ixp4xx/cpu.h
@@ -28,4 +28,19 @@ extern unsigned int processor_id;
 #define cpu_is_ixp46x() ((processor_id & IXP4XX_PROCESSOR_ID_MASK) == \
                           IXP465_PROCESSOR_ID_VALUE)
 
+static inline u32 ixp4xx_read_feature_bits(void)
+{
+        unsigned int val = ~*IXP4XX_EXP_CFG2;
+        val &= ~IXP4XX_FEATURE_RESERVED;
+        if (!cpu_is_ixp46x())
+                val &= ~IXP4XX_FEATURE_IXP46X_ONLY;
+
+        return val;
+}
+
+static inline void ixp4xx_write_feature_bits(u32 value)
+{
+        *IXP4XX_EXP_CFG2 = ~value;
+}
+
 #endif  /* _ASM_ARCH_CPU_H */