diff --git a/ETH/Kconfig b/ETH/Kconfig
index bf48dca9e2038cc1447c243fe51abb6952799970..d495b5d574d0b453455b40c7e7241e9276db9660 100644
--- a/ETH/Kconfig
+++ b/ETH/Kconfig
@@ -20,3 +20,9 @@ config MAC_E3XX
 	default n
 	---help---
 		choose MAC_E3XX mac driver
+
+config MAC_RH850
+	bool "RH850 MAC"
+	default n
+	---help---
+		choose MAC_RH850 mac driver
diff --git a/ETH/MAC/rh850/CMakeLists.txt b/ETH/MAC/rh850/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0621b717851b696e099a59a061e8b49a3bf83b2
--- /dev/null
+++ b/ETH/MAC/rh850/CMakeLists.txt
@@ -0,0 +1,26 @@
+set(ETH_STACK_RH850_GETHMAC_DIR "${CMAKE_CURRENT_SOURCE_DIR}" CACHE PATH "Path from drivers/Eth_GethMac")
+
+set(ETHGETHMAC_RH850_INC)
+set(ETHGETHMAC_RH850_SRCS)
+
+if(CONFIG_MAC_RH850)
+    nuttx_add_library(eth_gethmac STATIC)
+    list(APPEND ETHGETHMAC_RH850_INC
+        ${ETH_STACK_RH850_GETHMAC_DIR}/u2bx
+        ${NUTTX_DIR}/../../components/rt_framework/inc/
+        ${NUTTX_DIR}/../../components/include/
+        ${NUTTX_DIR}/../../components/include/autosar/
+    )
+
+    file(GLOB_RECURSE ETHGETHMACSRCS
+        ${ETH_STACK_RH850_GETHMAC_DIR}/u2bx/*.c
+    )
+
+    list(APPEND ETHGETHMAC_RH850_SRCS
+        ${ETHGETHMACSRCS}
+    )
+
+    target_include_directories(eth_gethmac PRIVATE ${ETHGETHMAC_RH850_INC})
+    target_sources(eth_gethmac PRIVATE ${ETHGETHMAC_RH850_SRCS})
+
+endif()
diff --git a/ETH/MAC/rh850/u2bx/EthTrcv_GeneralTypes.h b/ETH/MAC/rh850/u2bx/EthTrcv_GeneralTypes.h
new file mode 100644
index 0000000000000000000000000000000000000000..e5d915a9abb2160c970af66121b46c021393d61c
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/EthTrcv_GeneralTypes.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Platform_Types.h"
+
+#if !defined(ETHTRCV_GENERAL_TYPES_H)
+#define ETHTRCV_GENERAL_TYPES_H
+
+/**********************************************************************************************************************
+ *  GLOBAL CONSTANT MACROS
+ *********************************************************************************************************************/
+/* ETHTRCV modes */
+#define ETHTRCV_MODE_DOWN (0x00U)
+#define ETHTRCV_MODE_ACTIVE (0x01U)
+
+/* ETHTRCV link states */
+#define ETHTRCV_LINK_STATE_DOWN (0x00U)
+#define ETHTRCV_LINK_STATE_ACTIVE (0x01U)
+
+/* ETHTRCV baud rates */
+#define ETHTRCV_BAUD_RATE_10MBIT (0x00U)
+#define ETHTRCV_BAUD_RATE_100MBIT (0x01U)
+#define ETHTRCV_BAUD_RATE_1000MBIT (0x02U)
+
+/* ETHTRCV duplex modes */
+#define ETHTRCV_DUPLEX_MODE_HALF (0x00U)
+#define ETHTRCV_DUPLEX_MODE_FULL (0x01U)
+
+/* ETHTRCV state */
+#define ETHTRCV_STATE_UNINIT (0x00U)
+#define ETHTRCV_STATE_INIT (0x01U)
+#define ETHTRCV_STATE_ACTIVE (0x02U)
+#define ETHTRCV_STATE_DOWN (0x03U)
+
+/* ETHTRCV wakeup types */
+#define ETHTRCV_WAKEUP_NOT_SUPPORTED (0x00U)
+#define ETHTRCV_WAKEUP_BY_INTERRUPT (0x01U)
+#define ETHTRCV_WAKEUP_BY_POLLING (0x02U)
+
+/* ETHTRCV wakeup modes */
+#define ETHTRCV_WUM_DISABLE (0x00U)
+#define ETHTRCV_WUM_ENABLE (0x01U)
+#define ETHTRCV_WUM_CLEAR (0x02U)
+
+/* ETHTRCV wakeup reasons */
+#define ETHTRCV_WUR_NONE (0x00U)
+#define ETHTRCV_WUR_GENERAL (0x01U)
+#define ETHTRCV_WUR_BUS (0x02U)
+#define ETHTRCV_WUR_INTERNAL (0x03U)
+#define ETHTRCV_WUR_RESET (0x04U)
+#define ETHTRCV_WUR_POWER_ON (0x05U)
+#define ETHTRCV_WUR_PIN (0x06U)
+#define ETHTRCV_WUR_SYSERR (0x07U)
+/* count of AUTOSAR wakeup reasons defined for the transceiver */
+#define ETHTRCV_WUR_NUM (0x07U)
+
+/* Masks defining the bitpositions of the AUTOSAR wakeup reasons for type EthTrcv_WakeupReasonFlagsType. */
+#define ETHTRCV_WUR_GENERAL_FLAGS_MASK (0x01U)
+#define ETHTRCV_WUR_BUS_FLAGS_MASK (0x02U)
+#define ETHTRCV_WUR_INTERNAL_FLAGS_MASK (0x04U)
+#define ETHTRCV_WUR_RESET_FLAGS_MASK (0x08U)
+#define ETHTRCV_WUR_POWER_ON_FLAGS_MASK (0x10U)
+#define ETHTRCV_WUR_PIN_FLAGS_MASK (0x20U)
+#define ETHTRCV_WUR_SYSERR_FLAGS_MASK (0x40U)
+#define ETHTRCV_WUR_CLEAR_MASK (0x00U)
+
+/* EthTrcv wakeup inspection types */
+#define ETHTRCV_ICU_CHANNEL (0x01U)
+#define ETHTRCV_TRCV_REGISTERS (0x02U)
+#define ETHTRCV_USER_CODE (0x03U)
+
+/* ETHTRCV MII modes */
+#define ETHTRCV_MII_MODE (0x00U)
+#define ETHTRCV_LIGHT_MII_MODE (0x01U)
+#define ETHTRCV_RMII_MODE (0x02U)
+#define ETHTRCV_RMII_XTAL_MODE (0x03U)
+#define ETHTRCV_GMII_MODE (0x04U)
+#define ETHTRCV_RGMII_MODE (0x05U)
+#define ETHTRCV_RGMII_XTAL_MODE (0x06U)
+#define ETHTRCV_STRAPPING_CONFIG_ONLY (0x07U)
+#define ETHTRCV_DONT_CARE (0xFFU)
+
+/* ETHTRCV CONN NEG modes*/
+#define ETHTRCV_CONN_NEG_AUTO (0x00U)
+#define ETHTRCV_CONN_NEG_MASTER (0x01U)
+#define ETHTRCV_CONN_NEG_SLAVE (0x02U)
+#define ETHTRCV_CONN_NEG_MANUAL (0x03U)
+
+#define ETHTRCV_PHYS_ADDR_LEN_BYTE (0x06U)
+
+typedef uint8 eth_trcv_linkstate_type;
+typedef uint8 EthTrcv_WakeupReasonFlagsType;
+typedef uint8 EthTrcv_WakeupInspectionType;
+typedef uint8 EthTrcv_PhysAddrType[ETHTRCV_PHYS_ADDR_LEN_BYTE];
+typedef uint16 eth_frame_type;
+
+typedef uint16 eth_frame_type;
+typedef uint8 eth_data_type;
+typedef uint32 eth_buf_idx_type;
+
+#endif /* ETHTRCV_GENERAL_TYPES_H */
diff --git a/ETH/MAC/rh850/u2bx/Eth_GEthMac.c b/ETH/MAC/rh850/u2bx/Eth_GEthMac.c
new file mode 100644
index 0000000000000000000000000000000000000000..791f3184499558c1bb1a0941bbbe37824021eb6f
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/Eth_GEthMac.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Eth_GEthMac.h"
+#include "Eth_GEthMac_Cfg.h"
diff --git a/ETH/MAC/rh850/u2bx/Eth_GEthMac.h b/ETH/MAC/rh850/u2bx/Eth_GEthMac.h
new file mode 100644
index 0000000000000000000000000000000000000000..d59734aaf325291ade907fab5a4db012bc4b2d4e
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/Eth_GEthMac.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ETH_GETHMAC_H
+#define ETH_GETHMAC_H
+#include "Platform_Types.h"
+#include "Eth_GeneralTypes.h"
+#include "comstack_types.h"
+#define ETHMCAL_AUTOSAR_VERSION_440
+typedef uint32 Eth_BufIdxType;
+typedef uint16 Eth_FrameType;
+typedef eth_timestamp_qual_type Eth_TimeStampQualType;
+typedef uint8 Std_ReturnType;
+// typedef enum {
+// 	BUFREQ_OK,
+// 	BUFREQ_E_NOT_OK,
+// 	BUFREQ_E_BUSY,
+// 	BUFREQ_E_OVFL
+// } BufReq_ReturnType;
+typedef eth_timestamp_type Eth_TimeStampType;
+void Eth_GetPhysAddr
+(
+    uint8 CtrlIdx,
+    uint8 *AddrPtr
+);
+BufReq_ReturnType Eth_ProvideTxBuffer
+(
+    uint8 CtrlIdx,
+    uint8 Priority,
+    Eth_BufIdxType *BufIdxPtr,
+    uint8 **BufPtr,
+    uint16 *LenBytePtr
+);
+
+Std_ReturnType Eth_Transmit(
+    uint8 CtrlIdx,
+    Eth_BufIdxType BufIdx,
+    Eth_FrameType FrameType,
+    boolean TxConfirmation,
+    uint16 LenByte,
+    const uint8 *PhysAddrPtr
+);
+#endif
+Std_ReturnType Eth_GetCurrentTime(
+    uint8 CtrlIdx,
+    Eth_TimeStampQualType *TimeQualPtr,
+    Eth_TimeStampType *TimeStampPtr
+);
+
+
diff --git a/ETH/MAC/rh850/u2bx/Eth_GEthMac_Cfg.h b/ETH/MAC/rh850/u2bx/Eth_GEthMac_Cfg.h
new file mode 100644
index 0000000000000000000000000000000000000000..3fda163e0cc6dfd2c656dd815130812568cae339
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/Eth_GEthMac_Cfg.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Eth Driver Configuration File
+ */
+#ifndef ETH_GETHMAC_CFG_H
+#define ETH_GETHMAC_CFG_H
+
+
+
+
+
+#endif
diff --git a/ETH/MAC/rh850/u2bx/Eth_GeneralTypes.h b/ETH/MAC/rh850/u2bx/Eth_GeneralTypes.h
new file mode 100644
index 0000000000000000000000000000000000000000..30ecb31cee9302b0574b833d96d007a70ce850cc
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/Eth_GeneralTypes.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ETH_GENERALTYPES_H
+#define ETH_GENERALTYPES_H
+
+#include "Platform_Types.h"
+typedef uint16 eth_frame_type;
+typedef uint8 eth_data_type;
+
+typedef enum {
+	ETH_MODE_DOWN = 0x0U,
+	ETH_MODE_ACTIVE = 0x1U
+} eth_mode_type;
+
+typedef enum {
+	ETH_STATE_UNINIT = 0x0U,
+	ETH_STATE_INIT = 0x1U
+} eth_state_type;
+
+typedef enum {
+	ETH_RECEIVED = 0x0U,
+	ETH_NOT_RECEIVED,
+	ETH_RECEIVED_MORE_DATA_AVAILABLE
+} eth_rx_status_type;
+
+typedef enum {
+	ETH_ADD_TO_FILTER = 0x0U,
+	ETH_REMOVE_FROM_FILTER
+} eth_filter_action_type;
+
+typedef enum {
+	ETH_OK = 0x0U,
+	ETH_E_NOT_OK,
+	ETH_E_NO_ACCESS
+} eth_return_type;
+
+typedef enum {
+	ETH_VALID = 0x0U,
+	ETH_INVALID,
+	ETH_UNCERTAIN
+} eth_timestamp_qual_type;
+
+typedef struct {
+	uint32 nanoseconds;
+	uint32 seconds;
+	uint16 secondsHi;
+} eth_timestamp_type;
+
+typedef struct {
+	eth_timestamp_type diff;
+	boolean sign;
+} eth_time_int_diff_type;
+
+typedef struct {
+	eth_time_int_diff_type IngressTimeStampDelta;
+	eth_time_int_diff_type OriginTimeStampDelta;
+} eth_rateratio_type;
+
+typedef uint32 eth_buf_idx_type;
+
+#endif /* ETH_GENERALTYPES_H */
diff --git a/ETH/MAC/rh850/u2bx/Platform_Types.h b/ETH/MAC/rh850/u2bx/Platform_Types.h
new file mode 100644
index 0000000000000000000000000000000000000000..3b50abbd89b99ef6ffdc9ab908d2b9f32ad04ac5
--- /dev/null
+++ b/ETH/MAC/rh850/u2bx/Platform_Types.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2025 Li Auto Inc. and its affiliates
+ * Licensed under the Apache License, Version 2.0(the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PLATFORM_TYPES_H
+#define PLATFORM_TYPES_H
+#if !defined(ASSEMBLY)
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PLATFORM_TYPES_H_VENDOR_ID    0x8C
+#define PLATFORM_TYPES_H_AR_RELEASE_MAJOR_VERSION    4
+#define PLATFORM_TYPES_H_AR_RELEASE_MINOR_VERSION    3
+#define PLATFORM_TYPES_H_AR_RELEASE_REVISION_VERSION 1
+#define PLATFORM_TYPES_H_SW_MAJOR_VERSION    1
+#define PLATFORM_TYPES_H_SW_MINOR_VERSION    0
+#define PLATFORM_TYPES_H_SW_PATCH_VERSION    0
+#if defined(__ghs__)
+#include <stdint.h>
+#endif
+
+#define CPU_TYPE_8 8u
+#define CPU_TYPE_16 16u
+#define CPU_TYPE_32 32u
+#define CPU_TYPE_64 64u
+
+#define MSB_FIRST (0u) /* Big Endian bit ordering     */
+#define LSB_FIRST (1u) /* Little Endian bit ordering  */
+#define CPU_BIT_ORDER (LSB_FIRST)
+
+#define HIGH_BYTE_FIRST (0u) /* Big Endian byte ordering    */
+#define LOW_BYTE_FIRST (1u) /* Little Endian byte ordering */
+#define CPU_BYTE_ORDER LOW_BYTE_FIRST /* Little Endian */
+
+/**
+  * @brief          Processor type
+  */
+#define CPU_TYPE (CPU_TYPE_32) /* 32 bit  */
+
+#ifndef TRUE
+#define TRUE (1u)
+#endif
+#ifndef FALSE
+#define FALSE (0u)
+#endif
+
+#if (CPU_TYPE == CPU_TYPE_64)
+typedef unsigned char boolean;
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned int uint32;
+typedef unsigned long long uint64;
+typedef signed char sint8;
+typedef signed short sint16;
+typedef signed int sint32;
+typedef signed long long sint64;
+
+/* Unsigned integer at least 8 bit long. Range of at least 0 ..+255 (0x00..0xFF) - 8 bit */
+typedef unsigned int uint8_least;
+typedef unsigned int uint16_least;
+typedef unsigned int uint32_least;
+
+/**
+ * Signed integer at least 8 bit long. Range - at least -128 ..+127.
+ * At least 7 bit + 1 bit sign
+ */
+typedef signed int sint8_least;
+typedef signed int sint16_least;
+typedef signed int sint32_least;
+
+typedef float float32;
+typedef double float64;
+
+#elif (CPU_TYPE == CPU_TYPE_32)
+typedef unsigned char boolean;
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned long uint32;
+typedef unsigned long long uint64;
+typedef signed char sint8;
+typedef signed short sint16;
+typedef signed long sint32;
+typedef signed long long sint64;
+typedef unsigned long uint8_least;
+typedef unsigned long uint16_least;
+typedef unsigned long uint32_least;
+typedef signed long sint8_least;
+typedef signed long sint16_least;
+typedef signed long sint32_least;
+typedef float float32;
+typedef double float64;
+
+#elif (CPU_TYPE == CPU_TYPE_16)
+#error "This MCAL release has no CPU_TYPE_16 support."
+#endif
+
+typedef volatile uint32 addr_t;
+typedef volatile uint32 vaddr_t;
+typedef volatile uint32 paddr_t;
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+#endif /* #ifndef PLATFORM_TYPES_H */