STM32 Ethernet driver: Add DP83848C support

Signed-off-by: xiaofan <xfan1024@live.com>

bsp/stm32/libraries/HAL_Drivers/drv_eth.h

@@ -71,4 +71,22 @@
 
 #endif /* PHY_USING_DM9161CEP */
 
+#ifdef PHY_USING_DP83848C
+#define PHY_Status_REG              0x10U
+#define PHY_10M_MASK                (1<<1)
+#define PHY_FULL_DUPLEX_MASK        (1<<2)
+#define PHY_Status_SPEED_10M(sr)    ((sr) & PHY_10M_MASK)
+#define PHY_Status_SPEED_100M(sr)   (!PHY_Status_SPEED_10M(sr))
+#define PHY_Status_FULL_DUPLEX(sr)  ((sr) & PHY_FULL_DUPLEX_MASK)
+/*  The PHY interrupt source flag register. */
+#define PHY_INTERRUPT_FLAG_REG      0x12U
+#define PHY_LINK_CHANGE_FLAG        (1<<13)
+/*  The PHY interrupt control register. */
+#define PHY_INTERRUPT_CTRL_REG      0x11U
+#define PHY_INTERRUPT_EN            ((1<<0)|(1<<1))
+/*  The PHY interrupt mask register. */
+#define PHY_INTERRUPT_MASK_REG      0x12U
+#define PHY_INT_MASK                (1<<5)
+#endif /* PHY_USING_DP83848C */
+
 #endif /* __DRV_ETH_H__ */