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diff --git a/lib/chibios-contrib/ext/mcux-sdk/components/phy/device/phyar8031/fsl_phyar8031.h b/lib/chibios-contrib/ext/mcux-sdk/components/phy/device/phyar8031/fsl_phyar8031.h
new file mode 100644
index 000000000..1c37a8cd8
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/components/phy/device/phyar8031/fsl_phyar8031.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2020 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*****************************************************************************
+ * PHY AR8031 driver change log
+ *****************************************************************************/
+
+/*!
+@page driver_log Driver Change Log
+
+@section phyar8031 PHYAR8031
+  The current PHYAR8031 driver version is 2.0.0.
+
+  - 2.0.0
+    - Initial version.
+*/
+
+#ifndef _FSL_PHYAR8031_H_
+#define _FSL_PHYAR8031_H_
+
+#include "fsl_phy.h"
+
+/*!
+ * @addtogroup phy_driver
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @brief PHY driver version */
+#define FSL_PHY_DRIVER_VERSION (MAKE_VERSION(2, 0, 0))
+
+/*! @brief PHY operations structure. */
+extern const phy_operations_t phyar8031_ops;
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @name PHY Driver
+ * @{
+ */
+
+/*!
+ * @brief Initializes PHY.
+ *
+ *  This function initialize PHY.
+ *
+ * @param handle       PHY device handle.
+ * @param config       Pointer to structure of phy_config_t.
+ * @retval kStatus_Success  PHY initialization succeeds
+ * @retval kStatus_Fail  PHY initialization fails
+ * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
+ */
+status_t PHY_AR8031_Init(phy_handle_t *handle, const phy_config_t *config);
+
+/*!
+ * @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 handle  PHY device handle.
+ * @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_AR8031_Write(phy_handle_t *handle, 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 handle   PHY device handle.
+ * @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_AR8031_Read(phy_handle_t *handle, uint32_t phyReg, uint32_t *dataPtr);
+
+/*!
+ * @brief Gets the PHY auto-negotiation status.
+ *
+ * @param handle   PHY device handle.
+ * @param status   The auto-negotiation status of the PHY.
+ *         - true the auto-negotiation is over.
+ *         - false the auto-negotiation is on-going or not started.
+ * @retval kStatus_Success   PHY gets status success
+ * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
+ */
+status_t PHY_AR8031_GetAutoNegotiationStatus(phy_handle_t *handle, bool *status);
+
+/*!
+ * @brief Gets the PHY link status.
+ *
+ * @param handle   PHY device handle.
+ * @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 gets link status success
+ * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
+ */
+status_t PHY_AR8031_GetLinkStatus(phy_handle_t *handle, bool *status);
+
+/*!
+ * @brief Gets the PHY link speed and duplex.
+ *
+ * @brief This function gets the speed and duplex mode of PHY. User can give one of speed
+ * and duplex address paramter and set the other as NULL if only wants to get one of them.
+ *
+ * @param handle   PHY device handle.
+ * @param speed    The address of PHY link speed.
+ * @param duplex   The link duplex of PHY.
+ * @retval kStatus_Success   PHY gets link speed and duplex success
+ * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
+ */
+status_t PHY_AR8031_GetLinkSpeedDuplex(phy_handle_t *handle, phy_speed_t *speed, phy_duplex_t *duplex);
+
+/*!
+ * @brief Sets the PHY link speed and duplex.
+ *
+ * @param handle   PHY device handle.
+ * @param speed    Specified PHY link speed.
+ * @param duplex   Specified PHY link duplex.
+ * @retval kStatus_Success   PHY gets status success
+ * @retval kStatus_PHY_SMIVisitTimeout  PHY SMI visit time out
+ */
+status_t PHY_AR8031_SetLinkSpeedDuplex(phy_handle_t *handle, phy_speed_t speed, phy_duplex_t duplex);
+
+/*!
+ * @brief Enables/disables PHY loopback.
+ *
+ * @param handle   PHY device handle.
+ * @param mode     The loopback mode to be enabled, please see "phy_loop_t".
+ * All loopback modes should not be set together, when one loopback mode is set
+ * another 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_AR8031_EnableLoopback(phy_handle_t *handle, phy_loop_t mode, phy_speed_t speed, bool enable);
+
+/* @} */
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*! @}*/
+
+#endif /* _FSL_PHYAR8031_H_ */