1. 抽象了PHY的设备模型，在components中增加了PHY设备的相关代码以及KCONFIG配置和SConscript脚本

2. 在IMXRT的Libraries中增加了peripherals目录，用于具体型号的设备驱动相关的代码的实现，不应与MCU的平台相关，实现PHY的设备对象中的相关接口。
3. 修改了BSP中的Sconstruct文件，增加了peripherals目录的构建
4. 修改了KEIL环境的SCT文件，用于实现以太网功能

23 files changed, 903 insertions, 565 deletions

diff --git a/bsp/imxrt/imxrt1064-nxp-evk/SConstruct b/bsp/imxrt/imxrt1064-nxp-evk/SConstruct
index 01c823f118..92ab729ed1 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/SConstruct
+++ b/bsp/imxrt/imxrt1064-nxp-evk/SConstruct
@@ -66,5 +66,8 @@ objs.extend(SConscript(os.path.join(libraries_path_prefix, imxrt_library, 'SCons
 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'drivers', 'SConscript')))
 
+# include peripherals
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'peripherals', 'SConscript')))
+
 # make a building
 DoBuilding(TARGET, objs)
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/Kconfig b/bsp/imxrt/imxrt1064-nxp-evk/board/Kconfig
index 4c7caa2d53..5c660b91c7 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/Kconfig
+++ b/bsp/imxrt/imxrt1064-nxp-evk/board/Kconfig
@@ -44,20 +44,41 @@ menu "Onboard Peripheral Drivers"
 
     menuconfig BSP_USING_ETH
 	bool "Enable Ethernet"
-	select PHY_USING_KSZ8081
 	select RT_USING_NETDEV
 	default n
     
 
 	if BSP_USING_ETH
-		config PHY_USING_KSZ8081
-			bool "i.MX RT1064EVK uses ksz8081 phy"
+		config BSP_USING_PHY
+            select RT_USING_PHY
+			bool "Enable ethernet phy"
 			default y
 
-        config FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE
-            bool "Enable the PHY ksz8081 RMII50M mode"
-            depends on PHY_USING_KSZ8081
-            default y
+	    if BSP_USING_PHY
+            config PHY_DEVICE_ADDRESS
+                int "Specify address of phy device"
+                default 2
+
+            config PHY_USING_KSZ8081
+                bool "i.MX RT1064EVK uses ksz8081 phy"
+                default y
+
+            if PHY_USING_KSZ8081
+                config PHY_RESET_PORT
+                    int "indicate port of reset"
+                    default 1
+
+                config PHY_RESET_PIN
+                    int "indicate pin of reset"
+                    default 9
+                
+                config FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE
+                    bool "Enable the PHY ksz8081 RMII50M mode"
+                    depends on PHY_USING_KSZ8081
+                    default y
+            endif
+
+        endif
 	endif
 endmenu
 
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/SConscript b/bsp/imxrt/imxrt1064-nxp-evk/board/SConscript
index 6afc7c3ae4..050a6c10bc 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/SConscript
+++ b/bsp/imxrt/imxrt1064-nxp-evk/board/SConscript
@@ -15,10 +15,6 @@ CPPPATH = [cwd,cwd + '/MCUX_Config',cwd + '/ports']
 
 CPPDEFINES = ['CPU_MIMXRT1064DVL6A', 'SKIP_SYSCLK_INIT', 'EVK_MCIMXRM', 'FSL_SDK_ENABLE_DRIVER_CACHE_CONTROL=1','XIP_EXTERNAL_FLASH=1', 'XIP_BOOT_HEADER_ENABLE=1', 'XIP_BOOT_HEADER_DCD_ENABLE=1']
 
-if GetDepend(['PHY_USING_KSZ8081']):
-    src += Glob('ports/phyksz8081/fsl_phy.c')
-    CPPPATH += [cwd + '/ports/phyksz8081']
-
 if rtconfig.CROSS_TOOL == 'keil':
     CPPDEFINES.append('__FPU_PRESENT=1')
     
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/board.c b/bsp/imxrt/imxrt1064-nxp-evk/board/board.c
index 0ef8769e0e..603cd856c5 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/board.c
+++ b/bsp/imxrt/imxrt1064-nxp-evk/board/board.c
@@ -416,6 +416,7 @@ void imxrt_enet_pins_init(void)
                                                  Hyst. Enable Field: Hysteresis Disabled */
 }
 
+#ifndef BSP_USING_PHY
 void imxrt_enet_phy_reset_by_gpio(void)
 {
     gpio_pin_config_t gpio_config = {kGPIO_DigitalOutput, 0, kGPIO_NoIntmode};
@@ -428,8 +429,29 @@ void imxrt_enet_phy_reset_by_gpio(void)
     rt_thread_delay(100);
     GPIO_WritePinOutput(GPIO1, 9, 1);
 }
+#endif /* BSP_USING_PHY */
+
 #endif /* BSP_USING_ETH */
 
+#ifdef BSP_USING_PHY
+void imxrt_phy_pins_init( void )
+{
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_AD_B0_09_GPIO1_IO09, /* GPIO_AD_B0_09 is configured as GPIO1_IO09 */
+        0U);                             /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinConfig(
+        IOMUXC_GPIO_AD_B0_09_GPIO1_IO09, /* GPIO_B0_00 PAD functional properties : */
+        0x10B0u);                        /* Slew Rate Field: Slow Slew Rate
+                                                 Drive Strength Field: R0/6
+                                                 Speed Field: medium(100MHz)
+                                                 Open Drain Enable Field: Open Drain Disabled
+                                                 Pull / Keep Enable Field: Pull/Keeper Enabled
+                                                 Pull / Keep Select Field: Keeper
+                                                 Pull Up / Down Config. Field: 100K Ohm Pull Down
+                                                 Hyst. Enable Field: Hysteresis Disabled */
+}
+#endif /* BSP_USING_PHY */
+
 /**
  * This function will initial rt1050 board.
  */
@@ -450,6 +472,10 @@ void rt_hw_board_init()
     imxrt_enet_pins_init();
 #endif
 
+#ifdef BSP_USING_PHY
+    imxrt_phy_pins_init();
+#endif
+
 #ifdef BSP_USING_DMA
     imxrt_dma_init();
 #endif
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/board.h b/bsp/imxrt/imxrt1064-nxp-evk/board/board.h
index 500cc62450..dd7b7d3e56 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/board.h
+++ b/bsp/imxrt/imxrt1064-nxp-evk/board/board.h
@@ -48,7 +48,7 @@ void rt_hw_board_init(void);
 #ifdef BSP_USING_ETH
 void imxrt_enet_pins_init(void);
 void imxrt_enet_phy_reset_by_gpio(void);
-#define PHY_ADDRESS 0x02u
+
 #endif
 
 #endif
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/linker_scripts/link.sct b/bsp/imxrt/imxrt1064-nxp-evk/board/linker_scripts/link.sct
index 7b7bf4fbba..f36201c200 100644
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/linker_scripts/link.sct
+++ b/bsp/imxrt/imxrt1064-nxp-evk/board/linker_scripts/link.sct
@@ -66,6 +66,8 @@
 #define m_data3_start                  0x00000000       ; ITCM 128KB

 #define m_data3_size                   0x00020000

 

+#define m_ncache_start                 0x81E00000

+#define m_ncache_size                  0x00200000

 

 /* Sizes */

 #if (defined(__stack_size__))

@@ -124,7 +126,7 @@ LR_IROM1 m_text_start m_text_size
     RTT_HEAP +0 EMPTY RTT_HEAP_SIZE{}

 

     ; ncache RW data

-    RW_m_ncache m_data2_start m_data2_size 

+    RW_m_ncache m_ncache_start m_ncache_size

     { 

         * (NonCacheable.init)

         * (NonCacheable)

diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.c b/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.c
deleted file mode 100644
index 4197514aa5..0000000000
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.c
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * Copyright 2016-2017 NXP
- * All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include "fsl_phy.h"
-#include <rtthread.h>
-/*******************************************************************************
- * Definitions
- ******************************************************************************/
-
-/*! @brief Defines the timeout macro. */
-#define PHY_TIMEOUT_COUNT 0x3FFFFFFU
-
-/*******************************************************************************
- * Prototypes
- ******************************************************************************/
-
-/*!
- * @brief Get the ENET instance from peripheral base address.
- *
- * @param base ENET peripheral base address.
- * @return ENET instance.
- */
-extern uint32_t ENET_GetInstance(ENET_Type *base);
-
-/*******************************************************************************
- * Variables
- ******************************************************************************/
-
-#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
-/*! @brief Pointers to enet clocks for each instance. */
-extern clock_ip_name_t s_enetClock[FSL_FEATURE_SOC_ENET_COUNT];
-#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
-
-/*******************************************************************************
- * Code
- ******************************************************************************/
-
-status_t PHY_Init(ENET_Type *base, uint32_t phyAddr, uint32_t srcClock_Hz)
-{
-    uint32_t bssReg;
-    uint32_t counter = PHY_TIMEOUT_COUNT;
-    uint32_t idReg = 0;
-    status_t result = kStatus_Success;
-    uint32_t instance = ENET_GetInstance(base);
-    uint32_t timeDelay;
-    uint32_t ctlReg = 0;
-
-#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
-    /* Set SMI first. */
-    CLOCK_EnableClock(s_enetClock[instance]);
-#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
-    ENET_SetSMI(base, srcClock_Hz, false);
-
-    /* Initialization after PHY stars to work. */
-    while ((idReg != PHY_CONTROL_ID1) && (counter != 0))
-    {
-        PHY_Read(base, phyAddr, PHY_ID1_REG, &idReg);
-        counter --;
-    }
-
-    if (!counter)
-    {
-        return kStatus_Fail;
-    }
-
-    /* Reset PHY. */
-    counter = PHY_TIMEOUT_COUNT;
-    result = PHY_Write(base, phyAddr, PHY_BASICCONTROL_REG, PHY_BCTL_RESET_MASK);
-    if (result == kStatus_Success)
-    {
-
-#if defined(FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE)
-        uint32_t data = 0;
-        result = PHY_Read(base, phyAddr, PHY_CONTROL2_REG, &data);
-        if ( result != kStatus_Success)
-        {
-            return result;
-        }
-        result = PHY_Write(base, phyAddr, PHY_CONTROL2_REG, (data | PHY_CTL2_REFCLK_SELECT_MASK));
-        if (result != kStatus_Success)
-        {
-            return result;
-        }
-#endif  /* FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE */
-
-        /* Set the negotiation. */
-        result = PHY_Write(base, phyAddr, PHY_AUTONEG_ADVERTISE_REG,
-                           (PHY_100BASETX_FULLDUPLEX_MASK | PHY_100BASETX_HALFDUPLEX_MASK |
-                            PHY_10BASETX_FULLDUPLEX_MASK | PHY_10BASETX_HALFDUPLEX_MASK | 0x1U));
-        if (result == kStatus_Success)
-        {
-            result = PHY_Write(base, phyAddr, PHY_BASICCONTROL_REG,
-                               (PHY_BCTL_AUTONEG_MASK | PHY_BCTL_RESTART_AUTONEG_MASK));
-            if (result == kStatus_Success)
-            {
-                /* Check auto negotiation complete. */
-                while (counter --)
-                {
-                    result = PHY_Read(base, phyAddr, PHY_BASICSTATUS_REG, &bssReg);
-                    if ( result == kStatus_Success)
-                    {
-                        PHY_Read(base, phyAddr, PHY_CONTROL1_REG, &ctlReg);
-                        if (((bssReg & PHY_BSTATUS_AUTONEGCOMP_MASK) != 0) && (ctlReg & PHY_LINK_READY_MASK))
-                        {
-                            /* Wait a moment for Phy status stable. */
-                            for (timeDelay = 0; timeDelay < PHY_TIMEOUT_COUNT; timeDelay ++)
-                            {
-                                __ASM("nop");
-                            }
-                            break;
-                        }
-                    }
-
-                    if (!counter)
-                    {
-                        return kStatus_PHY_AutoNegotiateFail;
-                    }
-                }
-            }
-        }
-    }
-
-    return result;
-}
-
-status_t PHY_Write(ENET_Type *base, uint32_t phyAddr, uint32_t phyReg, uint32_t data)
-{
-    uint32_t counter;
-
-    /* Clear the SMI interrupt event. */
-    ENET_ClearInterruptStatus(base, ENET_EIR_MII_MASK);
-
-    /* Starts a SMI write command. */
-    ENET_StartSMIWrite(base, phyAddr, phyReg, kENET_MiiWriteValidFrame, data);
-
-    /* Wait for SMI complete. */
-    for (counter = PHY_TIMEOUT_COUNT; counter > 0; counter--)
-    {
-        if (ENET_GetInterruptStatus(base) & ENET_EIR_MII_MASK)
-        {
-            break;
-        }
-    }
-
-    /* Check for timeout. */
-    if (!counter)
-    {
-        return kStatus_PHY_SMIVisitTimeout;
-    }
-
-    /* Clear MII interrupt event. */
-    ENET_ClearInterruptStatus(base, ENET_EIR_MII_MASK);
-
-    return kStatus_Success;
-}
-
-status_t PHY_Read(ENET_Type *base, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr)
-{
-    assert(dataPtr);
-
-    uint32_t counter;
-
-    /* Clear the MII interrupt event. */
-    ENET_ClearInterruptStatus(base, ENET_EIR_MII_MASK);
-
-    /* Starts a SMI read command operation. */
-    ENET_StartSMIRead(base, phyAddr, phyReg, kENET_MiiReadValidFrame);
-
-    /* Wait for MII complete. */
-    for (counter = PHY_TIMEOUT_COUNT; counter > 0; counter--)
-    {
-        if (ENET_GetInterruptStatus(base) & ENET_EIR_MII_MASK)
-        {
-            break;
-        }
-    }
-
-    /* Check for timeout. */
-    if (!counter)
-    {
-        return kStatus_PHY_SMIVisitTimeout;
-    }
-
-    /* Get data from MII register. */
-    *dataPtr = ENET_ReadSMIData(base);
-
-    /* Clear MII interrupt event. */
-    ENET_ClearInterruptStatus(base, ENET_EIR_MII_MASK);
-
-    return kStatus_Success;
-}
-
-status_t PHY_EnableLoopback(ENET_Type *base, uint32_t phyAddr, phy_loop_t mode, phy_speed_t speed, bool enable)
-{
-    status_t result;
-    uint32_t data = 0;
-
-    /* Set the loop mode. */
-    if (enable)
-    {
-        if (mode == kPHY_LocalLoop)
-        {
-            if (speed == kPHY_Speed100M)
-            {
-                data = PHY_BCTL_SPEED_100M_MASK | PHY_BCTL_DUPLEX_MASK | PHY_BCTL_LOOP_MASK;
-            }
-            else
-            {
-                data = PHY_BCTL_DUPLEX_MASK | PHY_BCTL_LOOP_MASK;                
-            }
-           return PHY_Write(base, phyAddr, PHY_BASICCONTROL_REG, data);
-        }
-        else
-        {
-            /* First read the current status in control register. */
-            result = PHY_Read(base, phyAddr, PHY_CONTROL2_REG, &data);
-            if (result == kStatus_Success)
-            {
-                return PHY_Write(base, phyAddr, PHY_CONTROL2_REG, (data | PHY_CTL2_REMOTELOOP_MASK));
-            }
-        }
-    }
-    else
-    {
-        /* Disable the loop mode. */
-        if (mode == kPHY_LocalLoop)
-        {
-            /* First read the current status in control register. */
-            result = PHY_Read(base, phyAddr, PHY_BASICCONTROL_REG, &data);
-            if (result == kStatus_Success)
-            {
-                data &= ~PHY_BCTL_LOOP_MASK;
-                return PHY_Write(base, phyAddr, PHY_BASICCONTROL_REG, (data | PHY_BCTL_RESTART_AUTONEG_MASK));
-            }
-        }
-        else
-        {
-            /* First read the current status in control one register. */
-            result = PHY_Read(base, phyAddr, PHY_CONTROL2_REG, &data);
-            if (result == kStatus_Success)
-            {
-                return PHY_Write(base, phyAddr, PHY_CONTROL2_REG, (data & ~PHY_CTL2_REMOTELOOP_MASK));
-            }
-        }
-    }
-    return result;
-}
-
-status_t PHY_GetLinkStatus(ENET_Type *base, uint32_t phyAddr, bool *status)
-{
-    assert(status);
-
-    status_t result = kStatus_Success;
-    uint32_t data;
-
-    /* Read the basic status register. */
-    result = PHY_Read(base, phyAddr, PHY_BASICSTATUS_REG, &data);
-    if (result == kStatus_Success)
-    {
-        if (!(PHY_BSTATUS_LINKSTATUS_MASK & data))
-        {
-            /* link down. */
-            *status = false;
-        }
-        else
-        {
-            /* link up. */
-            *status = true;
-        }
-    }
-    return result;
-}
-
-status_t PHY_GetLinkSpeedDuplex(ENET_Type *base, uint32_t phyAddr, phy_speed_t *speed, phy_duplex_t *duplex)
-{
-    assert(duplex);
-
-    status_t result = kStatus_Success;
-    uint32_t data, ctlReg;
-
-    /* Read the control two register. */
-    result = PHY_Read(base, phyAddr, PHY_CONTROL1_REG, &ctlReg);
-    if (result == kStatus_Success)
-    {
-        data = ctlReg & PHY_CTL1_SPEEDUPLX_MASK;
-        if ((PHY_CTL1_10FULLDUPLEX_MASK == data) || (PHY_CTL1_100FULLDUPLEX_MASK == data))
-        {
-            /* Full duplex. */
-            *duplex = kPHY_FullDuplex;
-        }
-        else
-        {
-            /* Half duplex. */
-            *duplex = kPHY_HalfDuplex;
-        }
-
-        data = ctlReg & PHY_CTL1_SPEEDUPLX_MASK;
-        if ((PHY_CTL1_100HALFDUPLEX_MASK == data) || (PHY_CTL1_100FULLDUPLEX_MASK == data))
-        {
-            /* 100M speed. */
-            *speed = kPHY_Speed100M;
-        }
-        else
-        { /* 10M speed. */
-            *speed = kPHY_Speed10M;
-        }
-    }
-
-    return result;
-}
diff --git a/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.h b/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.h
deleted file mode 100644
index a1eff6d723..0000000000
--- a/bsp/imxrt/imxrt1064-nxp-evk/board/ports/phyksz8081/fsl_phy.h
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * Copyright 2016-2017 NXP
- * All rights reserved.
- * 
- * SPDX-License-Identifier: BSD-3-Clause
- */
-#ifndef _FSL_PHY_H_
-#define _FSL_PHY_H_
-
-#include "fsl_enet.h"
-
-/*!
- * @addtogroup phy_driver
- * @{
- */
-
-/*******************************************************************************
- * Definitions
- ******************************************************************************/
-
-/*! @brief PHY driver version */
-#define FSL_PHY_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) /*!< Version 2.0.0. */
-
-/*! @brief Defines the PHY registers. */
-#define PHY_BASICCONTROL_REG 0x00U      /*!< The PHY basic control register. */
-#define PHY_BASICSTATUS_REG 0x01U       /*!< The PHY basic status register. */
-#define PHY_ID1_REG 0x02U               /*!< The PHY ID one register. */
-#define PHY_ID2_REG 0x03U               /*!< The PHY ID two register. */
-#define PHY_AUTONEG_ADVERTISE_REG 0x04U /*!< The PHY auto-negotiate advertise register. */
-#define PHY_CONTROL1_REG 0x1EU          /*!< The PHY control one register. */
-#define PHY_CONTROL2_REG 0x1FU          /*!< The PHY control two register. */
-
-#define PHY_CONTROL_ID1 0x22U /*!< The PHY ID1*/
-
-/*! @brief Defines the mask flag in basic control register. */
-#define PHY_BCTL_DUPLEX_MASK 0x0100U          /*!< The PHY duplex bit mask. */
-#define PHY_BCTL_RESTART_AUTONEG_MASK 0x0200U /*!< The PHY restart auto negotiation mask. */
-#define PHY_BCTL_AUTONEG_MASK 0x1000U         /*!< The PHY auto negotiation bit mask. */
-#define PHY_BCTL_SPEED_MASK 0x2000U           /*!< The PHY speed bit mask. */
-#define PHY_BCTL_LOOP_MASK 0x4000U            /*!< The PHY loop bit mask. */
-#define PHY_BCTL_RESET_MASK 0x8000U           /*!< The PHY reset bit mask. */
-#define PHY_BCTL_SPEED_100M_MASK  0x2000U     /*!< The PHY 100M speed mask. */
-
-/*!@brief Defines the mask flag of operation mode in control two register*/
-#define PHY_CTL2_REMOTELOOP_MASK 0x0004U    /*!< The PHY remote loopback mask. */
-#define PHY_CTL2_REFCLK_SELECT_MASK 0x0080U /*!< The PHY RMII reference clock select. */ 
-#define PHY_CTL1_10HALFDUPLEX_MASK 0x0001U  /*!< The PHY 10M half duplex mask. */
-#define PHY_CTL1_100HALFDUPLEX_MASK 0x0002U /*!< The PHY 100M half duplex mask. */
-#define PHY_CTL1_10FULLDUPLEX_MASK 0x0005U  /*!< The PHY 10M full duplex mask. */
-#define PHY_CTL1_100FULLDUPLEX_MASK 0x0006U /*!< The PHY 100M full duplex mask. */
-#define PHY_CTL1_SPEEDUPLX_MASK 0x0007U     /*!< The PHY speed and duplex mask. */
-#define PHY_CTL1_ENERGYDETECT_MASK 0x10U    /*!< The PHY signal present on rx differential pair. */
-#define PHY_CTL1_LINKUP_MASK 0x100U         /*!< The PHY link up. */        
-#define PHY_LINK_READY_MASK (PHY_CTL1_ENERGYDETECT_MASK | PHY_CTL1_LINKUP_MASK)
-   
-/*! @brief Defines the mask flag in basic status register. */
-#define PHY_BSTATUS_LINKSTATUS_MASK 0x0004U  /*!< The PHY link status mask. */
-#define PHY_BSTATUS_AUTONEGABLE_MASK 0x0008U /*!< The PHY auto-negotiation ability mask. */
-#define PHY_BSTATUS_AUTONEGCOMP_MASK 0x0020U /*!< The PHY auto-negotiation complete mask. */
-
-/*! @brief Defines the mask flag in PHY auto-negotiation advertise register. */
-#define PHY_100BaseT4_ABILITY_MASK 0x200U    /*!< The PHY have the T4 ability. */
-#define PHY_100BASETX_FULLDUPLEX_MASK 0x100U /*!< The PHY has the 100M full duplex ability.*/
-#define PHY_100BASETX_HALFDUPLEX_MASK 0x080U /*!< The PHY has the 100M full duplex ability.*/
-#define PHY_10BASETX_FULLDUPLEX_MASK 0x040U  /*!< The PHY has the 10M full duplex ability.*/
-#define PHY_10BASETX_HALFDUPLEX_MASK 0x020U  /*!< The PHY has the 10M full duplex ability.*/
-
-/*! @brief Defines the PHY status. */
-enum _phy_status
-{
-    kStatus_PHY_SMIVisitTimeout = MAKE_STATUS(kStatusGroup_PHY, 1),  /*!< ENET PHY SMI visit timeout. */
-    kStatus_PHY_AutoNegotiateFail = MAKE_STATUS(kStatusGroup_PHY, 2) /*!< ENET PHY AutoNegotiate Fail. */
-};
-
-/*! @brief Defines the PHY link speed. This is align with the speed for ENET MAC. */
-typedef enum _phy_speed
-{
-    kPHY_Speed10M = 0U, /*!< ENET PHY 10M speed. */
-    kPHY_Speed100M      /*!< ENET PHY 100M speed. */
-} phy_speed_t;
-
-/*! @brief Defines the PHY link duplex. */
-typedef enum _phy_duplex
-{
-    kPHY_HalfDuplex = 0U, /*!< ENET PHY half duplex. */
-    kPHY_FullDuplex       /*!< ENET PHY full duplex. */
-} phy_duplex_t;
-
-/*! @brief Defines the PHY loopback mode. */
-typedef enum _phy_loop
-{
-    kPHY_LocalLoop = 0U, /*!< ENET PHY local loopback. */
-    kPHY_RemoteLoop      /*!< ENET PHY remote loopback. */
-} phy_loop_t;
-
-/*******************************************************************************
- * API
- ******************************************************************************/
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-/*!
-  * @name PHY Driver
-  * @{
-  */
-
-/*!
- * @brief Initializes PHY.
- *
- *  This function initialize the SMI interface and initialize PHY.
- *  The SMI is the MII management interface between PHY and MAC, which should be
- *  firstly initialized before any other operation for PHY. The PHY initialize with auto-negotiation. 
- *
- * @param base       ENET peripheral base address.
- * @param phyAddr    The PHY address.
- * @param srcClock_Hz  The module clock frequency - system clock for MII management interface - SMI.
- * @retval kStatus_Success  PHY initialize success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- * @retval kStatus_PHY_AutoNegotiateFail  PHY auto negotiate fail
- */
-status_t PHY_Init(ENET_Type *base, uint32_t phyAddr, uint32_t srcClock_Hz);
-
-/*!
- * @brief PHY Write function. This function write data over the SMI to
- * the specified PHY register. This function is called by all PHY interfaces.
- *
- * @param base    ENET peripheral base address.
- * @param phyAddr The PHY address.
- * @param phyReg  The PHY register.
- * @param data    The data written to the PHY register.
- * @retval kStatus_Success     PHY write success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- */
-status_t PHY_Write(ENET_Type *base, uint32_t phyAddr, uint32_t phyReg, uint32_t data);
-
-/*!
- * @brief PHY Read function. This interface read data over the SMI from the
- * specified PHY register. This function is called by all PHY interfaces.
- *
- * @param base     ENET peripheral base address.
- * @param phyAddr  The PHY address.
- * @param phyReg   The PHY register.
- * @param dataPtr  The address to store the data read from the PHY register.
- * @retval kStatus_Success  PHY read success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- */
-status_t PHY_Read(ENET_Type *base, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr);
-
-/*!
- * @brief Enables/disables PHY loopback.
- *
- * @param base     ENET peripheral base address.
- * @param phyAddr  The PHY address.
- * @param mode     The loopback mode to be enabled, please see "phy_loop_t".
- * the two loopback mode should not be both set. when one loopback mode is set
- * the other one should be disabled.
- * @param speed    PHY speed for loopback mode.
- * @param enable   True to enable, false to disable.
- * @retval kStatus_Success  PHY loopback success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- */
-status_t PHY_EnableLoopback(ENET_Type *base, uint32_t phyAddr, phy_loop_t mode, phy_speed_t speed, bool enable);
-
-/*!
- * @brief Gets the PHY link status.
- *
- * @param base     ENET peripheral base address.
- * @param phyAddr  The PHY address.
- * @param status   The link up or down status of the PHY.
- *         - true the link is up.
- *         - false the link is down.
- * @retval kStatus_Success   PHY get link status success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- */
-status_t PHY_GetLinkStatus(ENET_Type *base, uint32_t phyAddr, bool *status);
-
-/*!
- * @brief Gets the PHY link speed and duplex.
- *
- * @param base     ENET peripheral base address.
- * @param phyAddr  The PHY address.
- * @param speed    The address of PHY link speed.
- * @param duplex   The link duplex of PHY.
- * @retval kStatus_Success   PHY get link speed and duplex success
- * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
- */
-status_t PHY_GetLinkSpeedDuplex(ENET_Type *base, uint32_t phyAddr, phy_speed_t *speed, phy_duplex_t *duplex);
-
-/* @} */
-
-#if defined(__cplusplus)
-}
-#endif
-
-/*! @}*/
-
-#endif /* _FSL_PHY_H_ */
diff --git a/bsp/imxrt/libraries/drivers/SConscript b/bsp/imxrt/libraries/drivers/SConscript
index c806dada25..c610fcd082 100644
--- a/bsp/imxrt/libraries/drivers/SConscript
+++ b/bsp/imxrt/libraries/drivers/SConscript
@@ -44,6 +44,9 @@ if GetDepend('BSP_USING_LCD'):
 
 if GetDepend('BSP_USING_ETH'):
     src += ['drv_eth.c']
+    
+if GetDepend('BSP_USING_PHY'):
+    src += ['drv_mdio.c']
 
 if GetDepend('BSP_USING_USB_DEVICE'):
     src += ['drv_usbd.c']
diff --git a/bsp/imxrt/libraries/drivers/drv_eth.c b/bsp/imxrt/libraries/drivers/drv_eth.c
index 4558312be8..665886f936 100644
--- a/bsp/imxrt/libraries/drivers/drv_eth.c
+++ b/bsp/imxrt/libraries/drivers/drv_eth.c
@@ -19,7 +19,6 @@
 
 #include "fsl_enet.h"
 #include "fsl_gpio.h"
-#include "fsl_phy.h"
 #include "fsl_cache.h"
 #include "fsl_iomuxc.h"
 #include "fsl_common.h"
@@ -537,31 +536,52 @@ struct pbuf *rt_imxrt_eth_rx(rt_device_t dev)
     return NULL;
 }
 
+#ifdef BSP_USING_PHY
+static struct rt_phy_device *phy_dev = RT_NULL;
 static void phy_monitor_thread_entry(void *parameter)
 {
-    phy_speed_t speed;
-    phy_duplex_t duplex;
-    bool link = false;
+    rt_uint32_t speed;
+    rt_uint32_t duplex;
+    rt_bool_t link = RT_FALSE;
 
-    imxrt_enet_phy_reset_by_gpio();
-
-    PHY_Init(imxrt_eth_device.enet_base, PHY_ADDRESS, CLOCK_GetFreq(kCLOCK_AhbClk));
+    phy_dev = (struct rt_phy_device *)rt_device_find("rtt-phy");
+    if ((RT_NULL == phy_dev) || (RT_NULL == phy_dev->ops))
+    {
+        // TODO print warning information
+        LOG_E("Can not find phy device called \"rtt-phy\"");
+        return ;
+    }
+    LOG_I("start to initialize phy device!");
+    if (RT_NULL == phy_dev->ops->init)
+    {
+        LOG_E("phy driver error!");
+        return ;
+    }
+    rt_phy_status status = phy_dev->ops->init(imxrt_eth_device.enet_base, PHY_DEVICE_ADDRESS, CLOCK_GetFreq(kCLOCK_AhbClk));
+    if (PHY_STATUS_OK != status)
+    {
+        LOG_E("Phy device initialize unsuccessful!\n");
+        return ;
+    }
+    else
+    {
+        LOG_I("Phy device initialize successful!\n");
+    }
 
     while (1)
     {
-        bool new_link = false;
-        status_t status = PHY_GetLinkStatus(imxrt_eth_device.enet_base, PHY_ADDRESS, &new_link);
+        rt_bool_t new_link = RT_FALSE;
+        rt_phy_status status = phy_dev->ops->get_link_status(&new_link);
 
-        if ((status == kStatus_Success) && (link != new_link))
+        if ((PHY_STATUS_OK == status) && (link != new_link))
         {
             link = new_link;
 
-            if (link)   // link up
+            if (link) // link up
             {
-                PHY_GetLinkSpeedDuplex(imxrt_eth_device.enet_base,
-                                       PHY_ADDRESS, &speed, &duplex);
+                phy_dev->ops->get_link_speed_duplex(&speed, &duplex);
 
-                if (kPHY_Speed10M == speed)
+                if (PHY_SPEED_10M == speed)
                 {
                     dbg_log(DBG_LOG, "10M\n");
                 }
@@ -570,7 +590,7 @@ static void phy_monitor_thread_entry(void *parameter)
                     dbg_log(DBG_LOG, "100M\n");
                 }
 
-                if (kPHY_HalfDuplex == duplex)
+                if (PHY_HALF_DUPLEX == duplex)
                 {
                     dbg_log(DBG_LOG, "half dumplex\n");
                 }
@@ -579,8 +599,7 @@ static void phy_monitor_thread_entry(void *parameter)
                     dbg_log(DBG_LOG, "full dumplex\n");
                 }
 
-                if ((imxrt_eth_device.speed != (enet_mii_speed_t)speed)
-                        || (imxrt_eth_device.duplex != (enet_mii_duplex_t)duplex))
+                if ((imxrt_eth_device.speed != (enet_mii_speed_t)speed) || (imxrt_eth_device.duplex != (enet_mii_duplex_t)duplex))
                 {
                     imxrt_eth_device.speed = (enet_mii_speed_t)speed;
                     imxrt_eth_device.duplex = (enet_mii_duplex_t)duplex;
@@ -605,6 +624,7 @@ static void phy_monitor_thread_entry(void *parameter)
         rt_thread_delay(RT_TICK_PER_SECOND * 2);
     }
 }
+#endif
 
 static int rt_hw_imxrt_eth_init(void)
 {
@@ -657,6 +677,7 @@ static int rt_hw_imxrt_eth_init(void)
 
     /* start phy monitor */
     {
+        #ifdef BSP_USING_PHY
         rt_thread_t tid;
         tid = rt_thread_create("phy",
                                phy_monitor_thread_entry,
@@ -666,6 +687,7 @@ static int rt_hw_imxrt_eth_init(void)
                                2);
         if (tid != RT_NULL)
             rt_thread_startup(tid);
+        #endif
     }
 
     return state;
@@ -673,50 +695,47 @@ static int rt_hw_imxrt_eth_init(void)
 INIT_DEVICE_EXPORT(rt_hw_imxrt_eth_init);
 #endif
 
-#ifdef RT_USING_FINSH
+#if defined(RT_USING_FINSH) && defined(RT_USING_PHY)
 #include <finsh.h>
 
-void phy_read(uint32_t phyReg)
+void phy_read(rt_uint32_t phy_reg)
 {
-    uint32_t data;
-    status_t status;
+    rt_uint32_t data;
 
-    status = PHY_Read(imxrt_eth_device.enet_base, PHY_ADDRESS, phyReg, &data);
-    if (kStatus_Success == status)
+    rt_phy_status status = phy_dev->ops->read(phy_reg, &data);
+    if (PHY_STATUS_OK == status)
     {
-        rt_kprintf("PHY_Read: %02X --> %08X", phyReg, data);
+        rt_kprintf("PHY_Read: %02X --> %08X", phy_reg, data);
     }
     else
     {
-        rt_kprintf("PHY_Read: %02X --> faild", phyReg);
+        rt_kprintf("PHY_Read: %02X --> faild", phy_reg);
     }
 }
 
-void phy_write(uint32_t phyReg, uint32_t data)
+void phy_write(rt_uint32_t phy_reg, rt_uint32_t data)
 {
-    status_t status;
-
-    status = PHY_Write(imxrt_eth_device.enet_base, PHY_ADDRESS, phyReg, data);
-    if (kStatus_Success == status)
+    rt_phy_status status = phy_dev->ops->write(phy_reg, data);
+    if (PHY_STATUS_OK == status)
     {
-        rt_kprintf("PHY_Write: %02X --> %08X\n", phyReg, data);
+        rt_kprintf("PHY_Write: %02X --> %08X\n", phy_reg, data);
     }
     else
     {
-        rt_kprintf("PHY_Write: %02X --> faild\n", phyReg);
+        rt_kprintf("PHY_Write: %02X --> faild\n", phy_reg);
     }
 }
 
 void phy_dump(void)
 {
-    uint32_t data;
-    status_t status;
+    rt_uint32_t data;
+    rt_phy_status status;
 
     int i;
     for (i = 0; i < 32; i++)
     {
-        status = PHY_Read(imxrt_eth_device.enet_base, PHY_ADDRESS, i, &data);
-        if (kStatus_Success != status)
+        status = phy_dev->ops->read(i, &data);
+        if (PHY_STATUS_OK != status)
         {
             rt_kprintf("phy_dump: %02X --> faild", i);
             break;
@@ -730,10 +749,11 @@ void phy_dump(void)
         {
             rt_kprintf("%02X --> %08X\n", i, data);
         }
-
     }
 }
+#endif
 
+#if defined(RT_USING_FINSH) && defined(RT_USING_LWIP)
 void enet_reg_dump(void)
 {
     ENET_Type *enet_base = imxrt_eth_device.enet_base;
diff --git a/bsp/imxrt/libraries/drivers/drv_mdio.c b/bsp/imxrt/libraries/drivers/drv_mdio.c
new file mode 100644
index 0000000000..3e98d57f29
--- /dev/null
+++ b/bsp/imxrt/libraries/drivers/drv_mdio.c
@@ -0,0 +1,160 @@
+
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-09-29     WangQiang    the first version
+ *
+ */
+
+#include <rtthread.h>
+
+#ifdef BSP_USING_PHY
+
+#define LOG_TAG "drv.mdio"
+#include <drv_log.h>
+
+#include <rtdevice.h>
+#include "drv_mdio.h"
+
+
+
+/*! @brief Defines the timeout macro. */
+#define PHY_TIMEOUT_COUNT 0x3FFFFFFU
+
+/*!
+ * @brief Get the ENET instance from peripheral base address.
+ *
+ * @param base ENET peripheral base address.
+ * @return ENET instance.
+ */
+extern uint32_t ENET_GetInstance(ENET_Type *base);
+
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+/*! @brief Pointers to enet clocks for each instance. */
+extern clock_ip_name_t s_enetClock[FSL_FEATURE_SOC_ENET_COUNT];
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+
+static rt_bool_t rt_hw_mdio_init(void *bus, rt_uint32_t src_clock_hz)
+{
+    struct rt_mdio_bus *bus_obj = (struct rt_mdio_bus *)bus;
+    uint32_t instance = ENET_GetInstance((ENET_Type *)(bus_obj->hw_obj));
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    /* Set SMI first. */
+    CLOCK_EnableClock(s_enetClock[instance]);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+    ENET_SetSMI((ENET_Type *)(bus_obj->hw_obj), src_clock_hz, RT_FALSE);
+
+    return RT_TRUE;
+}
+
+static rt_size_t rt_hw_mdio_read(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size)
+{
+    RT_ASSERT(data);
+    struct rt_mdio_bus *bus_obj = (struct rt_mdio_bus *)bus;
+
+    rt_uint32_t counter;
+    rt_uint32_t *data_ptr = (rt_uint32_t *)data;
+
+    if (4 != size)
+    {
+        return 0;
+    }
+
+    /* Clear the MII interrupt event. */
+    ENET_ClearInterruptStatus((ENET_Type *)(bus_obj->hw_obj), ENET_EIR_MII_MASK);
+
+    /* Starts a SMI read command operation. */
+    ENET_StartSMIRead((ENET_Type *)(bus_obj->hw_obj), addr, reg, kENET_MiiReadValidFrame);
+
+    /* Wait for MII complete. */
+    for (counter = PHY_TIMEOUT_COUNT; counter > 0; counter--)
+    {
+        if (ENET_GetInterruptStatus((ENET_Type *)(bus_obj->hw_obj)) & ENET_EIR_MII_MASK)
+        {
+            break;
+        }
+    }
+
+    /* Check for timeout. */
+    if (!counter)
+    {
+        // return kStatus_PHY_SMIVisitTimeout;
+        return 0;
+    }
+
+    /* Get data from MII register. */
+    *data_ptr = ENET_ReadSMIData((ENET_Type *)(bus_obj->hw_obj));
+
+    /* Clear MII interrupt event. */
+    ENET_ClearInterruptStatus((ENET_Type *)bus_obj->hw_obj, ENET_EIR_MII_MASK);
+
+    return 4;
+}
+
+
+static rt_size_t rt_hw_mdio_write(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size)
+{
+    struct rt_mdio_bus *bus_obj = (struct rt_mdio_bus *)bus;
+    uint32_t counter;
+    rt_uint32_t *data_ptr = (rt_uint32_t *)data;
+
+    if (4 != size)
+    {
+        return 0;
+    }
+
+    /* Clear the SMI interrupt event. */
+    ENET_ClearInterruptStatus((ENET_Type *)(bus_obj->hw_obj), ENET_EIR_MII_MASK);
+
+    /* Starts a SMI write command. */
+    ENET_StartSMIWrite((ENET_Type *)(bus_obj->hw_obj), addr, reg, kENET_MiiWriteValidFrame, *data_ptr);
+
+    /* Wait for SMI complete. */
+    for (counter = PHY_TIMEOUT_COUNT; counter > 0; counter--)
+    {
+        if (ENET_GetInterruptStatus((ENET_Type *)(bus_obj->hw_obj)) & ENET_EIR_MII_MASK)
+        {
+            break;
+        }
+    }
+
+    /* Check for timeout. */
+    if (!counter)
+    {
+        return 0;
+    }
+
+    /* Clear MII interrupt event. */
+    ENET_ClearInterruptStatus((ENET_Type *)(bus_obj->hw_obj), ENET_EIR_MII_MASK);
+
+    return size;
+}
+
+static struct rt_mdio_bus_ops imxrt_mdio_ops =
+{
+    .init = rt_hw_mdio_init,
+    .read = rt_hw_mdio_read,
+    .write = rt_hw_mdio_write,
+    .uninit = RT_NULL,
+};
+
+static rt_mdio_t mdio_bus;
+
+rt_mdio_t *rt_hw_mdio_register(void *hw_obj, char *name)
+{
+    mdio_bus.hw_obj = hw_obj;
+    mdio_bus.name = name;
+    mdio_bus.ops = &imxrt_mdio_ops;
+    return &mdio_bus;
+}
+
+rt_mdio_t *rt_hw_mdio_get(void)
+{
+    return &mdio_bus;
+}
+
+#endif
diff --git a/bsp/imxrt/libraries/drivers/drv_mdio.h b/bsp/imxrt/libraries/drivers/drv_mdio.h
new file mode 100644
index 0000000000..a1623cfc2c
--- /dev/null
+++ b/bsp/imxrt/libraries/drivers/drv_mdio.h
@@ -0,0 +1,25 @@
+
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-09-29     WangQiang    the first version
+ *
+ */
+
+#ifndef DRV_MDIO_H__
+#define DRV_MDIO_H__
+
+#include <rtdevice.h>
+
+#include "fsl_enet.h"
+
+
+rt_mdio_t *rt_hw_mdio_register(void *hw_obj, char *name);
+
+rt_mdio_t *rt_hw_mdio_get(void);
+
+#endif /*DRV_MDIO_H__*/
diff --git a/bsp/imxrt/libraries/peripherals/SConscript b/bsp/imxrt/libraries/peripherals/SConscript
new file mode 100644
index 0000000000..13d040cf2b
--- /dev/null
+++ b/bsp/imxrt/libraries/peripherals/SConscript
@@ -0,0 +1,16 @@
+from building import *
+
+src = []
+cwd = []
+CPPDEFINES = []
+
+cwd = GetCurrentDir()
+
+if GetDepend('BSP_USING_PHY') and GetDepend('PHY_USING_KSZ8081'):
+    src += ['phyksz8081.c']
+
+path = [cwd]
+
+group = DefineGroup('Peripherals', src, depend = [''], CPPPATH = path, CPPDEFINES=CPPDEFINES)
+
+Return('group')
diff --git a/bsp/imxrt/libraries/peripherals/phyksz8081.c b/bsp/imxrt/libraries/peripherals/phyksz8081.c
new file mode 100644
index 0000000000..88c041f4d1
--- /dev/null
+++ b/bsp/imxrt/libraries/peripherals/phyksz8081.c
@@ -0,0 +1,367 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * Copyright 2016-2017 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <rtthread.h>
+
+#ifdef PHY_USING_KSZ8081
+
+#include <rtdevice.h>
+#include "drv_gpio.h"
+#include "drv_mdio.h"
+
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @brief Defines the PHY registers. */
+#define PHY_BASICCONTROL_REG 0x00U      /*!< The PHY basic control register. */
+#define PHY_BASICSTATUS_REG 0x01U       /*!< The PHY basic status register. */
+#define PHY_ID1_REG 0x02U               /*!< The PHY ID one register. */
+#define PHY_ID2_REG 0x03U               /*!< The PHY ID two register. */
+#define PHY_AUTONEG_ADVERTISE_REG 0x04U /*!< The PHY auto-negotiate advertise register. */
+#define PHY_CONTROL1_REG 0x1EU          /*!< The PHY control one register. */
+#define PHY_CONTROL2_REG 0x1FU          /*!< The PHY control two register. */
+
+#define PHY_CONTROL_ID1 0x22U /*!< The PHY ID1*/
+
+/*! @brief Defines the mask flag in basic control register. */
+#define PHY_BCTL_DUPLEX_MASK 0x0100U          /*!< The PHY duplex bit mask. */
+#define PHY_BCTL_RESTART_AUTONEG_MASK 0x0200U /*!< The PHY restart auto negotiation mask. */
+#define PHY_BCTL_AUTONEG_MASK 0x1000U         /*!< The PHY auto negotiation bit mask. */
+#define PHY_BCTL_SPEED_MASK 0x2000U           /*!< The PHY speed bit mask. */
+#define PHY_BCTL_LOOP_MASK 0x4000U            /*!< The PHY loop bit mask. */
+#define PHY_BCTL_RESET_MASK 0x8000U           /*!< The PHY reset bit mask. */
+#define PHY_BCTL_SPEED_100M_MASK 0x2000U      /*!< The PHY 100M speed mask. */
+
+/*!@brief Defines the mask flag of operation mode in control two register*/
+#define PHY_CTL2_REMOTELOOP_MASK 0x0004U    /*!< The PHY remote loopback mask. */
+#define PHY_CTL2_REFCLK_SELECT_MASK 0x0080U /*!< The PHY RMII reference clock select. */
+#define PHY_CTL1_10HALFDUPLEX_MASK 0x0001U  /*!< The PHY 10M half duplex mask. */
+#define PHY_CTL1_100HALFDUPLEX_MASK 0x0002U /*!< The PHY 100M half duplex mask. */
+#define PHY_CTL1_10FULLDUPLEX_MASK 0x0005U  /*!< The PHY 10M full duplex mask. */
+#define PHY_CTL1_100FULLDUPLEX_MASK 0x0006U /*!< The PHY 100M full duplex mask. */
+#define PHY_CTL1_SPEEDUPLX_MASK 0x0007U     /*!< The PHY speed and duplex mask. */
+#define PHY_CTL1_ENERGYDETECT_MASK 0x10U    /*!< The PHY signal present on rx differential pair. */
+#define PHY_CTL1_LINKUP_MASK 0x100U         /*!< The PHY link up. */
+#define PHY_LINK_READY_MASK (PHY_CTL1_ENERGYDETECT_MASK | PHY_CTL1_LINKUP_MASK)
+
+/*! @brief Defines the mask flag in basic status register. */
+#define PHY_BSTATUS_LINKSTATUS_MASK 0x0004U  /*!< The PHY link status mask. */
+#define PHY_BSTATUS_AUTONEGABLE_MASK 0x0008U /*!< The PHY auto-negotiation ability mask. */
+#define PHY_BSTATUS_AUTONEGCOMP_MASK 0x0020U /*!< The PHY auto-negotiation complete mask. */
+
+/*! @brief Defines the mask flag in PHY auto-negotiation advertise register. */
+#define PHY_100BaseT4_ABILITY_MASK 0x200U    /*!< The PHY have the T4 ability. */
+#define PHY_100BASETX_FULLDUPLEX_MASK 0x100U /*!< The PHY has the 100M full duplex ability.*/
+#define PHY_100BASETX_HALFDUPLEX_MASK 0x080U /*!< The PHY has the 100M full duplex ability.*/
+#define PHY_10BASETX_FULLDUPLEX_MASK 0x040U  /*!< The PHY has the 10M full duplex ability.*/
+#define PHY_10BASETX_HALFDUPLEX_MASK 0x020U  /*!< The PHY has the 10M full duplex ability.*/
+
+
+
+/*! @brief Defines the timeout macro. */
+#define PHY_TIMEOUT_COUNT 0x3FFFFFFU
+
+/* defined the Reset pin, PORT and PIN config by menuconfig */
+#define RESET_PIN GET_PIN(PHY_RESET_PORT, PHY_RESET_PIN)
+
+/*******************************************************************************
+ * Prototypes
+ ******************************************************************************/
+
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+static struct rt_phy_device phy_ksz8081;
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+
+
+static inline rt_bool_t read_reg(rt_mdio_t *bus, rt_uint32_t addr, rt_uint32_t reg_id, rt_uint32_t *value)
+{
+    if (4 != bus->ops->read(bus, addr, reg_id, value, 4))
+    {
+        return RT_FALSE;
+    }
+    return RT_TRUE;
+}
+
+static inline rt_bool_t write_reg(rt_mdio_t *bus, rt_uint32_t addr, rt_uint32_t reg_id, rt_uint32_t value)
+{
+    if (4 != bus->ops->write(bus, addr, reg_id, &value, 4))
+    {
+        return RT_FALSE;
+    }
+    return RT_TRUE;
+}
+
+static rt_phy_status rt_phy_init(void *object, rt_uint32_t phy_addr, rt_uint32_t src_clock_hz)
+{
+    rt_bool_t ret;
+    rt_phy_status result;
+    rt_uint32_t counter = PHY_TIMEOUT_COUNT;
+    rt_uint32_t id_reg = 0;
+    rt_uint32_t time_delay;
+    rt_uint32_t bss_reg;
+    rt_uint32_t ctl_reg = 0;
+
+    // reset phy device by gpio
+    rt_pin_mode(RESET_PIN, PIN_MODE_OUTPUT);
+    rt_pin_write(RESET_PIN, PIN_LOW);
+    rt_thread_mdelay(100);
+    rt_pin_write(RESET_PIN, PIN_HIGH);
+
+    rt_mdio_t *mdio_bus = rt_hw_mdio_register(object, "phy_mdio");
+    if (RT_NULL == mdio_bus)
+    {
+        return PHY_STATUS_FAIL;
+    }
+    phy_ksz8081.bus = mdio_bus;
+    phy_ksz8081.addr = phy_addr;
+    ret = mdio_bus->ops->init(mdio_bus, src_clock_hz);
+    if ( !ret )
+    {
+        return PHY_STATUS_FAIL;
+    }
+
+    /* Initialization after PHY stars to work. */
+    while ((id_reg != PHY_CONTROL_ID1) && (counter != 0))
+    {
+        phy_ksz8081.ops->read(PHY_ID1_REG, &id_reg);
+        counter--;
+    }
+
+    if (!counter)
+    {
+        return PHY_STATUS_FAIL;
+    }
+
+    /* Reset PHY. */
+    counter = PHY_TIMEOUT_COUNT;
+    result = phy_ksz8081.ops->write(PHY_BASICCONTROL_REG, PHY_BCTL_RESET_MASK);
+    if (PHY_STATUS_OK == result)
+    {
+        #if defined(FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE)
+        rt_uint32_t data = 0;
+        result = phy_ksz8081.ops->read(PHY_CONTROL2_REG, &data);
+        if (PHY_STATUS_FAIL == result)
+        {
+            return PHY_STATUS_FAIL;
+        }
+        result = phy_ksz8081.ops->write(PHY_CONTROL2_REG, (data | PHY_CTL2_REFCLK_SELECT_MASK));
+        if (PHY_STATUS_FAIL == result)
+        {
+            return PHY_STATUS_FAIL;
+        }
+        #endif  /* FSL_FEATURE_PHYKSZ8081_USE_RMII50M_MODE */
+
+        /* Set the negotiation. */
+        result = phy_ksz8081.ops->write(PHY_AUTONEG_ADVERTISE_REG, 
+                                        (PHY_100BASETX_FULLDUPLEX_MASK | PHY_100BASETX_HALFDUPLEX_MASK |
+                                        PHY_10BASETX_FULLDUPLEX_MASK | PHY_10BASETX_HALFDUPLEX_MASK | 0x1U));
+        if (PHY_STATUS_OK == result)
+        {
+            result = phy_ksz8081.ops->write(PHY_BASICCONTROL_REG, (PHY_BCTL_AUTONEG_MASK | PHY_BCTL_RESTART_AUTONEG_MASK));
+            if (PHY_STATUS_OK == result)
+            {
+                /* Check auto negotiation complete. */
+                while (counter--)
+                {
+                    result = phy_ksz8081.ops->read(PHY_BASICSTATUS_REG, &bss_reg);
+                    if (PHY_STATUS_OK == result)
+                    {
+                        phy_ksz8081.ops->read(PHY_CONTROL1_REG, &ctl_reg);
+                        if (((bss_reg & PHY_BSTATUS_AUTONEGCOMP_MASK) != 0) && (ctl_reg & PHY_LINK_READY_MASK))
+                        {
+                            /* Wait a moment for Phy status stable. */
+                            for (time_delay = 0; time_delay < PHY_TIMEOUT_COUNT; time_delay++)
+                            {
+                                __ASM("nop");
+                            }
+                            break;
+                        }
+                    }
+
+                    if (!counter)
+                    {
+                        return PHY_STATUS_FAIL;
+                    }
+                }
+            }
+        }
+    }
+
+    return PHY_STATUS_OK;
+}
+
+
+static rt_phy_status rt_phy_read(rt_uint32_t reg, rt_uint32_t *data)
+{
+    rt_mdio_t *mdio_bus = phy_ksz8081.bus;
+    rt_uint32_t device_id = phy_ksz8081.addr;
+
+    if (read_reg(mdio_bus, device_id, reg, data))
+    {
+        return PHY_STATUS_OK;
+    }
+    return PHY_STATUS_FAIL;
+}
+
+static rt_phy_status rt_phy_write(rt_uint32_t reg, rt_uint32_t data)
+{
+    rt_mdio_t *mdio_bus = phy_ksz8081.bus;
+    rt_uint32_t device_id = phy_ksz8081.addr;
+
+    if (write_reg(mdio_bus, device_id, reg, data))
+    {
+        return PHY_STATUS_OK;
+    }
+    return PHY_STATUS_FAIL;
+}
+
+static rt_phy_status rt_phy_loopback(rt_uint32_t mode, rt_uint32_t speed, rt_bool_t enable)
+{
+    rt_uint32_t data = 0;
+    rt_phy_status result;
+
+    /* Set the loop mode. */
+    if (enable)
+    {
+        if (PHY_LOCAL_LOOP == mode)
+        {
+            if (PHY_SPEED_100M == speed)
+            {
+                data = PHY_BCTL_SPEED_100M_MASK | PHY_BCTL_DUPLEX_MASK | PHY_BCTL_LOOP_MASK;
+            }
+            else
+            {
+                data = PHY_BCTL_DUPLEX_MASK | PHY_BCTL_LOOP_MASK;
+            }
+            return phy_ksz8081.ops->write(PHY_BASICCONTROL_REG, data);
+        }
+        else
+        {
+            /* First read the current status in control register. */
+            result = phy_ksz8081.ops->read(PHY_CONTROL2_REG, &data);
+            if (PHY_STATUS_OK == result)
+            {
+                return phy_ksz8081.ops->write(PHY_CONTROL2_REG, (data | PHY_CTL2_REMOTELOOP_MASK));
+            }
+        }
+    }
+    else
+    {
+        /* Disable the loop mode. */
+        if (PHY_LOCAL_LOOP == mode)
+        {
+            /* First read the current status in control register. */
+            result = phy_ksz8081.ops->read(PHY_BASICCONTROL_REG, &data);
+            if (PHY_STATUS_OK == result)
+            {
+                data &= ~PHY_BCTL_LOOP_MASK;
+                return phy_ksz8081.ops->write(PHY_BASICCONTROL_REG, (data | PHY_BCTL_RESTART_AUTONEG_MASK));
+            }
+        }
+        else
+        {
+            /* First read the current status in control one register. */
+            result = phy_ksz8081.ops->read(PHY_CONTROL2_REG, &data);
+            if (PHY_STATUS_OK == result)
+            {
+                return phy_ksz8081.ops->write(PHY_CONTROL2_REG, (data & ~PHY_CTL2_REMOTELOOP_MASK));
+            }
+        }
+    }
+    return result;
+}
+
+static rt_phy_status get_link_status(rt_bool_t *status)
+{
+    rt_phy_status result;
+    rt_uint32_t data;
+
+    /* Read the basic status register. */
+    result = phy_ksz8081.ops->read(PHY_BASICSTATUS_REG, &data);
+    if (PHY_STATUS_OK == result)
+    {
+        if (!(PHY_BSTATUS_LINKSTATUS_MASK & data))
+        {
+            /* link down. */
+            *status = RT_FALSE;
+        }
+        else
+        {
+            /* link up. */
+            *status = RT_TRUE;
+        }
+    }
+    return result;
+}
+static rt_phy_status get_link_speed_duplex(rt_uint32_t *speed, rt_uint32_t *duplex)
+{
+    rt_phy_status result = PHY_STATUS_OK;
+    rt_uint32_t data, ctl_reg;
+
+    /* Read the control two register. */
+    result = phy_ksz8081.ops->read(PHY_CONTROL1_REG, &ctl_reg);
+    if (PHY_STATUS_OK == result)
+    {
+        data = ctl_reg & PHY_CTL1_SPEEDUPLX_MASK;
+        if ((PHY_CTL1_10FULLDUPLEX_MASK == data) || (PHY_CTL1_100FULLDUPLEX_MASK == data))
+        {
+            /* Full duplex. */
+            *duplex = PHY_FULL_DUPLEX;
+        }
+        else
+        {
+            /* Half duplex. */
+            *duplex = PHY_HALF_DUPLEX;
+        }
+
+        data = ctl_reg & PHY_CTL1_SPEEDUPLX_MASK;
+        if ((PHY_CTL1_100HALFDUPLEX_MASK == data) || (PHY_CTL1_100FULLDUPLEX_MASK == data))
+        {
+            /* 100M speed. */
+            *speed = PHY_SPEED_100M;
+        }
+        else
+        { /* 10M speed. */
+            *speed = PHY_SPEED_10M;
+        }
+    }
+
+    return result;
+}
+
+static struct rt_phy_ops phy_ops =
+{
+    .init = rt_phy_init,
+    .read = rt_phy_read,
+    .write = rt_phy_write,
+    .loopback = rt_phy_loopback,
+    .get_link_status = get_link_status,
+    .get_link_speed_duplex = get_link_speed_duplex,
+};
+
+static int rt_phy_ksz8081_register( void )
+{
+    phy_ksz8081.ops = &phy_ops;
+    rt_hw_phy_register(&phy_ksz8081, "rtt-phy");
+    return 1;
+}
+
+INIT_DEVICE_EXPORT(rt_phy_ksz8081_register);
+
+
+
+#endif /* PHY_USING_KSZ8081 */
diff --git a/bsp/imxrt/tools/sdk_dist.py b/bsp/imxrt/tools/sdk_dist.py
index 89b7da4356..b663628504 100644
--- a/bsp/imxrt/tools/sdk_dist.py
+++ b/bsp/imxrt/tools/sdk_dist.py
@@ -21,3 +21,6 @@ def dist_do_building(BSP_ROOT, dist_dir=None):
     print("=> copy bsp drivers")
     bsp_copy_files(os.path.join(library_path, 'drivers'), os.path.join(library_dir, 'drivers'))
     shutil.copyfile(os.path.join(library_path, 'Kconfig'), os.path.join(library_dir, 'Kconfig'))
+
+    print("=> copy bsp peripherals")
+    bsp_copy_files(os.path.join(library_path, 'peripherals'), os.path.join(library_dir, 'peripherals'))
diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 457b8751fe..db4455160e 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -103,6 +103,10 @@ if RT_USING_I2C
     endif
 endif
 
+config RT_USING_PHY
+    bool "Using ethernet phy device drivers"
+    default n
+
 config RT_USING_PIN
     bool "Using generic GPIO device drivers"
     default y
diff --git a/components/drivers/include/drivers/phy.h b/components/drivers/include/drivers/phy.h
new file mode 100644
index 0000000000..9a9eaeb5dd
--- /dev/null
+++ b/components/drivers/include/drivers/phy.h
@@ -0,0 +1,79 @@
+
+
+#ifndef __PHY_H___
+#define __PHY_H___
+
+#include <rtthread.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* Defines the PHY link speed. This is align with the speed for MAC. */
+enum phy_speed
+{
+    PHY_SPEED_10M = 0U, /* PHY 10M speed. */
+    PHY_SPEED_100M      /* PHY 100M speed. */
+};
+
+/* Defines the PHY link duplex. */
+enum phy_duplex
+{
+    PHY_HALF_DUPLEX = 0U, /* PHY half duplex. */
+    PHY_FULL_DUPLEX       /* PHY full duplex. */
+};
+
+/*! @brief Defines the PHY loopback mode. */
+enum phy_loop
+{
+    PHY_LOCAL_LOOP = 0U, /* PHY local loopback. */
+    PHY_REMOTE_LOOP      /* PHY remote loopback. */
+};
+
+
+struct rt_phy_msg
+{
+    rt_uint32_t reg;
+    rt_uint32_t value;
+};
+
+typedef struct rt_phy_msg rt_phy_msg_t;
+
+
+struct rt_phy_device
+{
+    struct rt_device parent;
+    struct rt_mdio_bus *bus;
+    rt_uint32_t addr;
+    struct rt_phy_ops *ops;
+};
+
+typedef struct rt_phy_device rt_phy_t;
+
+
+enum {
+    PHY_STATUS_OK = 0,
+    PHY_STATUS_FAIL,
+    PHY_STATUS_TIMEOUT,
+};
+
+typedef rt_int32_t rt_phy_status;
+
+struct rt_phy_ops
+{
+    rt_phy_status (*init)(void *object, rt_uint32_t phy_addr, rt_uint32_t src_clock_hz);
+    rt_phy_status (*read)(rt_uint32_t reg, rt_uint32_t *data);
+    rt_phy_status (*write)(rt_uint32_t reg, rt_uint32_t data);
+    rt_phy_status (*loopback)(rt_uint32_t mode, rt_uint32_t speed, rt_bool_t enable);
+    rt_phy_status (*get_link_status)(rt_bool_t *status);
+    rt_phy_status (*get_link_speed_duplex)(rt_uint32_t *speed, rt_uint32_t *duplex);
+};
+
+rt_err_t rt_hw_phy_register(struct rt_phy_device *phy, const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __PHY_H__*/
diff --git a/components/drivers/include/drivers/phy_mdio.h b/components/drivers/include/drivers/phy_mdio.h
new file mode 100644
index 0000000000..a4a79f6e7a
--- /dev/null
+++ b/components/drivers/include/drivers/phy_mdio.h
@@ -0,0 +1,35 @@
+
+
+#ifndef __MDIO_H___
+#define __MDIO_H___
+
+#include <rtthread.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+struct rt_mdio_bus_ops
+{
+    rt_bool_t (*init)(void *bus, rt_uint32_t src_clock_hz);
+    rt_size_t (*read)(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size);
+    rt_size_t (*write)(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size);
+    rt_bool_t (*uninit)(void *bus);
+};
+
+struct rt_mdio_bus
+{
+    void *hw_obj;
+    char *name;
+    struct rt_mdio_bus_ops *ops;
+};
+
+typedef struct rt_mdio_bus rt_mdio_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index f54290097c..f0fa2f5b4a 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -69,6 +69,11 @@ extern "C" {
 #endif /* RT_USING_I2C_BITOPS */
 #endif /* RT_USING_I2C */
 
+#ifdef RT_USING_PHY
+#include "drivers/phy.h"
+#include "drivers/phy_mdio.h"
+#endif /* RT_USING_PHY */
+
 #ifdef RT_USING_SDIO
 #include "drivers/mmcsd_core.h"
 #include "drivers/sd.h"
diff --git a/components/drivers/phy/SConscript b/components/drivers/phy/SConscript
new file mode 100644
index 0000000000..ec12ed24c2
--- /dev/null
+++ b/components/drivers/phy/SConscript
@@ -0,0 +1,8 @@
+from building import *
+
+cwd     = GetCurrentDir()
+src	= Glob('*.c')
+CPPPATH = [cwd + '/../include']
+group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_PHY'], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/drivers/phy/phy.c b/components/drivers/phy/phy.c
new file mode 100644
index 0000000000..3ed4a1a265
--- /dev/null
+++ b/components/drivers/phy/phy.c
@@ -0,0 +1,78 @@
+
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2020-09-27     wangqiang     first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#define DBG_TAG "PHY"
+#define DBG_LVL DBG_INFO
+#include <rtdbg.h>
+
+
+static rt_size_t phy_device_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t count)
+{
+    struct rt_phy_device *phy = (struct rt_phy_device *)dev->user_data;
+    struct rt_phy_msg *msg = (struct rt_phy_msg *)buffer;
+    return phy->bus->ops->read(phy->bus, phy->addr, msg->reg, &(msg->value), 4);
+}
+static rt_size_t phy_device_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t count)
+{
+    struct rt_phy_device *phy = (struct rt_phy_device *)dev->user_data;
+    struct rt_phy_msg *msg = (struct rt_phy_msg *)buffer;
+    return phy->bus->ops->write(phy->bus, phy->addr, msg->reg, &(msg->value), 4);
+}
+
+
+
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops phy_ops = 
+{
+    RT_NULL, 
+    RT_NULL,
+    RT_NULL,
+    phy_device_read,
+    phy_device_write,
+    RT_NULL,
+};
+#endif
+
+/*
+* phy device register
+*/
+rt_err_t rt_hw_phy_register(struct rt_phy_device *phy, const char *name)
+{
+    rt_err_t ret;
+    struct rt_device *device;
+
+    device = &(phy->parent);
+
+    device->type = RT_Device_Class_PHY;
+    device->rx_indicate = RT_NULL;
+    device->tx_complete = RT_NULL;
+
+#ifdef RT_USING_DEVICE_OPS
+    device->ops = phy_ops;
+#else
+    device->init = NULL;
+    device->open = NULL;
+    device->close = NULL;
+    device->read = phy_device_read;
+    device->write = phy_device_write;
+    device->control = NULL;
+#endif
+    device->user_data = phy;
+
+    /* register a character device */
+    ret = rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
+
+    return ret;
+}
diff --git a/components/finsh/cmd.c b/components/finsh/cmd.c
index d764ea4231..afbda59e90 100644
--- a/components/finsh/cmd.c
+++ b/components/finsh/cmd.c
@@ -821,6 +821,7 @@ static char *const device_type_str[] =
     "Miscellaneous Device",
     "Sensor Device",
     "Touch Device",
+    "Phy Device",
     "Unknown"
 };
 
diff --git a/include/rtdef.h b/include/rtdef.h
index 5543b80ab7..100cd5c2d6 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -863,6 +863,7 @@ enum rt_device_class_type
     RT_Device_Class_Miscellaneous,                      /**< Miscellaneous device */
     RT_Device_Class_Sensor,                             /**< Sensor device */
     RT_Device_Class_Touch,                              /**< Touch device */
+    RT_Device_Class_PHY,                                /**< PHY device */
     RT_Device_Class_Unknown                             /**< unknown device */
 };