-#define ZYNQ_GEM_NWCFG_SPEED100 0x000000001 /* 100 Mbps operation */
-#define ZYNQ_GEM_NWCFG_SPEED1000 0x000000400 /* 1Gbps operation */
-#define ZYNQ_GEM_NWCFG_FDEN 0x000000002 /* Full Duplex mode */
-#define ZYNQ_GEM_NWCFG_FSREM 0x000020000 /* FCS removal */
-#define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x0000c0000 /* Div pclk by 48, max 120MHz */
+#define ZYNQ_GEM_NWCFG_SPEED100 0x00000001 /* 100 Mbps operation */
+#define ZYNQ_GEM_NWCFG_SPEED1000 0x00000400 /* 1Gbps operation */
+#define ZYNQ_GEM_NWCFG_FDEN 0x00000002 /* Full Duplex mode */
+#define ZYNQ_GEM_NWCFG_FSREM 0x00020000 /* FCS removal */
+#define ZYNQ_GEM_NWCFG_SGMII_ENBL 0x08000000 /* SGMII Enable */
+#define ZYNQ_GEM_NWCFG_PCS_SEL 0x00000800 /* PCS select */
+#ifdef CONFIG_ARM64
+#define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x00100000 /* Div pclk by 64, max 160MHz */
+#else
+#define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x000c0000 /* Div pclk by 48, max 120MHz */
+#endif