diff --git a/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.c b/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.c
index f28df43989..be9e6afd2d 100644
--- a/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.c
+++ b/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.c
@@ -246,7 +246,7 @@ mvswitch_config_init(struct phy_device *pdev)
 	w16(pdev, MV_SWITCHREG(ATU_CTRL),
 		MV_ATUCTL_RESET |
 		MV_ATUCTL_ATU_1K |
-		MV_ATUCTL_AGETIME(4080) /* maximum */
+		MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */
 	);
 
 	i = 100; /* timeout */
diff --git a/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.h b/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.h
index 81516b708b..a172e37265 100644
--- a/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.h
+++ b/target/linux/generic-2.6/files-2.6.25/drivers/net/phy/mvswitch.h
@@ -114,6 +114,8 @@ enum {
 };
 
 enum {
+#define MV_ATUCTL_AGETIME_MIN	16
+#define MV_ATUCTL_AGETIME_MAX	4080
 #define MV_ATUCTL_AGETIME(_n)	((((_n) / 16) & 0xff) << 4)
 	MV_ATUCTL_ATU_256   = (0 << 12),
 	MV_ATUCTL_ATU_512   = (1 << 12),
diff --git a/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.c b/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.c
index f28df43989..be9e6afd2d 100644
--- a/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.c
+++ b/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.c
@@ -246,7 +246,7 @@ mvswitch_config_init(struct phy_device *pdev)
 	w16(pdev, MV_SWITCHREG(ATU_CTRL),
 		MV_ATUCTL_RESET |
 		MV_ATUCTL_ATU_1K |
-		MV_ATUCTL_AGETIME(4080) /* maximum */
+		MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */
 	);
 
 	i = 100; /* timeout */
diff --git a/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.h b/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.h
index 81516b708b..a172e37265 100644
--- a/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.h
+++ b/target/linux/generic-2.6/files-2.6.26/drivers/net/phy/mvswitch.h
@@ -114,6 +114,8 @@ enum {
 };
 
 enum {
+#define MV_ATUCTL_AGETIME_MIN	16
+#define MV_ATUCTL_AGETIME_MAX	4080
 #define MV_ATUCTL_AGETIME(_n)	((((_n) / 16) & 0xff) << 4)
 	MV_ATUCTL_ATU_256   = (0 << 12),
 	MV_ATUCTL_ATU_512   = (1 << 12),
diff --git a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
index f28df43989..be9e6afd2d 100644
--- a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
+++ b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.c
@@ -246,7 +246,7 @@ mvswitch_config_init(struct phy_device *pdev)
 	w16(pdev, MV_SWITCHREG(ATU_CTRL),
 		MV_ATUCTL_RESET |
 		MV_ATUCTL_ATU_1K |
-		MV_ATUCTL_AGETIME(4080) /* maximum */
+		MV_ATUCTL_AGETIME(MV_ATUCTL_AGETIME_MIN) /* minimum without disabling ageing */
 	);
 
 	i = 100; /* timeout */
diff --git a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.h b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.h
index 81516b708b..a172e37265 100644
--- a/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.h
+++ b/target/linux/generic-2.6/files/drivers/net/phy/mvswitch.h
@@ -114,6 +114,8 @@ enum {
 };
 
 enum {
+#define MV_ATUCTL_AGETIME_MIN	16
+#define MV_ATUCTL_AGETIME_MAX	4080
 #define MV_ATUCTL_AGETIME(_n)	((((_n) / 16) & 0xff) << 4)
 	MV_ATUCTL_ATU_256   = (0 << 12),
 	MV_ATUCTL_ATU_512   = (1 << 12),