net: phy: micrel: Use defines for PHY_IDs and MASK

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
diff --git a/drivers/net/phy/micrel_ksz90x1.c b/drivers/net/phy/micrel_ksz90x1.c
index 0105fc5..f83650b 100644
--- a/drivers/net/phy/micrel_ksz90x1.c
+++ b/drivers/net/phy/micrel_ksz90x1.c
@@ -383,8 +383,8 @@
 
 static struct phy_driver ksz9031_driver = {
 	.name = "Micrel ksz9031",
-	.uid  = 0x221620,
-	.mask = 0xfffff0,
+	.uid  = PHY_ID_KSZ9031,
+	.mask = MII_KSZ9x31_SILICON_REV_MASK,
 	.features = PHY_GBIT_FEATURES,
 	.config   = &ksz9031_config,
 	.startup  = &ksz90xx_startup,
diff --git a/include/micrel.h b/include/micrel.h
index 3e6b531..1d121c2 100644
--- a/include/micrel.h
+++ b/include/micrel.h
@@ -23,6 +23,11 @@
 #define MII_KSZ9031_FLP_BURST_TX_LO		0x3
 #define MII_KSZ9031_FLP_BURST_TX_HI		0x4
 
+#define MII_KSZ9x31_SILICON_REV_MASK		0xfffff0
+
+#define PHY_ID_KSZ9031				0x00221620
+
+
 /* Registers */
 #define MMD_ACCESS_CONTROL	0xd
 #define MMD_ACCESS_REG_DATA	0xe