diff --git a/Makefile b/Makefile
index a6d51a9..087734f 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,6 @@ CONFIG_RTL8723D = y
 CONFIG_RTL8821C = n
 ######################### Interface ###########################
 CONFIG_USB_HCI = n
-CONFIG_PCI_HCI = n
 CONFIG_SDIO_HCI = y
 CONFIG_GSPI_HCI = n
 ########################## Features ###########################
@@ -163,11 +162,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 HCI_NAME = usb
 endif
 
-ifeq ($(CONFIG_PCI_HCI), y)
-HCI_NAME = pci
-endif
-
-
 _OS_INTFS_FILES :=	os_dep/osdep_service.o \
 			os_dep/linux/os_intfs.o \
 			os_dep/linux/$(HCI_NAME)_intf.o \
@@ -275,9 +269,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8188eu
 endif
 
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8188ee
-endif
 EXTRA_CFLAGS += -DCONFIG_RTL8188E
 
 _HAL_INTFS_FILES +=	hal/HalPwrSeqCmd.o \
@@ -311,9 +302,6 @@ endif
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8188E_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8188E_PCIE.o
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8188E_SDIO.o
 endif
@@ -343,9 +331,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8192eu
 endif
 
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8192ee
-endif
 EXTRA_CFLAGS += -DCONFIG_RTL8192E
 _HAL_INTFS_FILES += hal/HalPwrSeqCmd.o \
 					hal/$(RTL871X)/Hal8192EPwrSeq.o\
@@ -377,9 +362,6 @@ endif
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8192E_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8192E_PCIE.o
-endif
 
 #hal/OUTSRC/$(RTL871X)/HalHWImg8188E_FW.o
 _OUTSRC_FILES += hal/phydm/$(RTL871X)/halhwimg8192e_mac.o\
@@ -400,9 +382,6 @@ RTL871X = rtl8812a
 ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8812au
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8812ae
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8812as
 endif
@@ -438,17 +417,11 @@ ifeq ($(CONFIG_RTL8812A), y)
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8812A_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8812A_PCIE.o
-endif
 endif
 ifeq ($(CONFIG_RTL8821A), y)
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8821A_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8821A_PCIE.o
-endif
 endif
 
 ifeq ($(CONFIG_RTL8812A), y)
@@ -477,9 +450,6 @@ else
 MODULE_NAME := 8811au
 endif
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME := 8821ae
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME := 8821as
 endif
@@ -511,9 +481,6 @@ RTL871X = rtl8723b
 ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8723bu
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8723be
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8723bs
 endif
@@ -538,18 +505,11 @@ _HAL_INTFS_FILES +=	\
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_NAME)_xmit.o \
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_NAME)_recv.o
 
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops_linux.o
-else
 _HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops.o
-endif
 
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8723B_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8723B_PCIE.o
-endif
 
 _OUTSRC_FILES += hal/phydm/$(RTL871X)/halhwimg8723b_bb.o\
 								hal/phydm/$(RTL871X)/halhwimg8723b_mac.o\
@@ -572,9 +532,6 @@ RTL871X = rtl8814a
 ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8814au
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8814ae
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8814as
 endif
@@ -614,9 +571,6 @@ endif
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8814A_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8814A_PCIE.o
-endif
 
 _OUTSRC_FILES += hal/phydm/$(RTL871X)/halhwimg8814a_bb.o\
 								hal/phydm/$(RTL871X)/halhwimg8814a_mac.o\
@@ -638,10 +592,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8723cu
 MODULE_SUB_NAME = 8703bu
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8723ce
-MODULE_SUB_NAME = 8703be
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8723cs
 MODULE_SUB_NAME = 8703bs
@@ -667,18 +617,11 @@ _HAL_INTFS_FILES +=	\
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_SUB_NAME)_xmit.o \
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_SUB_NAME)_recv.o
 
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops_linux.o
-else
 _HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops.o
-endif
 
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8703B_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8703B_PCIE.o
-endif
 
 _OUTSRC_FILES += hal/phydm/$(RTL871X)/halhwimg8703b_bb.o\
 								hal/phydm/$(RTL871X)/halhwimg8703b_mac.o\
@@ -696,10 +639,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8723du
 MODULE_SUB_NAME = 8723du
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8723de
-MODULE_SUB_NAME = 8723de
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8723ds
 MODULE_SUB_NAME = 8723ds
@@ -727,18 +666,11 @@ _HAL_INTFS_FILES +=	\
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_SUB_NAME)_xmit.o \
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_SUB_NAME)_recv.o
 
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops_linux.o
-else
 _HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops.o
-endif
 
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8723D_USB.o
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8723D_PCIE.o
-endif
 
 _OUTSRC_FILES += hal/phydm/$(RTL871X)/halhwimg8723d_bb.o\
 								hal/phydm/$(RTL871X)/halhwimg8723d_mac.o\
@@ -756,9 +688,6 @@ RTL871X = rtl8188f
 ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME = 8188fu
 endif
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME = 8188fe
-endif
 ifeq ($(CONFIG_SDIO_HCI), y)
 MODULE_NAME = 8189fs
 endif
@@ -783,11 +712,7 @@ _HAL_INTFS_FILES +=	\
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_NAME)_xmit.o \
 			hal/$(RTL871X)/$(HCI_NAME)/rtl$(MODULE_NAME)_recv.o
 
-ifeq ($(CONFIG_PCI_HCI), y)
-_HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops_linux.o
-else
 _HAL_INTFS_FILES += hal/$(RTL871X)/$(HCI_NAME)/$(HCI_NAME)_ops.o
-endif
 
 ifeq ($(CONFIG_USB_HCI), y)
 _HAL_INTFS_FILES +=hal/efuse/$(RTL871X)/HalEfuseMask8188F_USB.o
@@ -1805,11 +1730,6 @@ ifeq ($(CONFIG_USB_HCI), y)
 MODULE_NAME := rtw_usb
 endif
 
-ifeq ($(CONFIG_PCI_HCI), y)
-MODULE_NAME := rtw_pci
-endif
-
-
 endif
 
 USER_MODULE_NAME ?=
diff --git a/include/Hal8703BPhyCfg.h b/include/Hal8703BPhyCfg.h
index e9d422f..3217c08 100644
--- a/include/Hal8703BPhyCfg.h
+++ b/include/Hal8703BPhyCfg.h
@@ -27,11 +27,7 @@
 #define MAX_TXPWR_IDX_NMODE_92S	63
 #define Reset_Cnt_Limit			3
 
-#ifdef CONFIG_PCI_HCI
-	#define MAX_AGGR_NUM	0x0B
-#else
-	#define MAX_AGGR_NUM	0x07
-#endif /* CONFIG_PCI_HCI */
+#define MAX_AGGR_NUM	0x07
 
 
 /*--------------------------Define Parameters End-------------------------------*/
diff --git a/include/Hal8723DPhyCfg.h b/include/Hal8723DPhyCfg.h
index 09afeb1..ed6ca2c 100644
--- a/include/Hal8723DPhyCfg.h
+++ b/include/Hal8723DPhyCfg.h
@@ -27,11 +27,7 @@
 #define MAX_TXPWR_IDX_NMODE_92S	63
 #define Reset_Cnt_Limit			3
 
-#ifdef CONFIG_PCI_HCI
-	#define MAX_AGGR_NUM	0x0B
-#else
-	#define MAX_AGGR_NUM	0x07
-#endif /* CONFIG_PCI_HCI */
+#define MAX_AGGR_NUM	0x07
 
 
 /*--------------------------Define Parameters End-------------------------------*/
diff --git a/include/hal_intf.h b/include/hal_intf.h
index a05b680..2faf2dd 100644
--- a/include/hal_intf.h
+++ b/include/hal_intf.h
@@ -280,7 +280,7 @@ struct hal_ops {
 	/*** recv section ***/
 	s32(*init_recv_priv)(_adapter *padapter);
 	void	(*free_recv_priv)(_adapter *padapter);
-#if defined(CONFIG_USB_HCI) || defined(CONFIG_PCI_HCI)
+#if defined(CONFIG_USB_HCI)
 	u32(*inirp_init)(_adapter *padapter);
 	u32(*inirp_deinit)(_adapter *padapter);
 #endif
@@ -288,18 +288,11 @@ struct hal_ops {
 	void	(*enable_interrupt)(_adapter *padapter);
 	void	(*disable_interrupt)(_adapter *padapter);
 	u8(*check_ips_status)(_adapter *padapter);
-#if defined(CONFIG_PCI_HCI)
-	s32(*interrupt_handler)(_adapter *padapter);
-#endif
 
 #if defined(CONFIG_USB_HCI) && defined(CONFIG_SUPPORT_USB_INT)
 	void	(*interrupt_handler)(_adapter *padapter, u16 pkt_len, u8 *pbuf);
 #endif
 
-#if defined(CONFIG_PCI_HCI)
-	void	(*irp_reset)(_adapter *padapter);
-#endif
-
 	/*** DM section ***/
 
 	void	(*InitSwLeds)(_adapter *padapter);
@@ -376,7 +369,7 @@ struct hal_ops {
 				 u8 IsPsPoll, u8 IsBTQosNull, u8 bDataFrame);
 	s32(*fw_dl)(_adapter *adapter, u8 wowlan);
 
-#if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN) || defined(CONFIG_PCI_HCI)
+#if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
 	void (*clear_interrupt)(_adapter *padapter);
 #endif
 	u8(*hal_get_tx_buff_rsvd_page_num)(_adapter *adapter, bool wowlan);
@@ -602,15 +595,11 @@ void rtw_hal_disable_interrupt(_adapter *padapter);
 
 u8 rtw_hal_check_ips_status(_adapter *padapter);
 
-#if defined(CONFIG_USB_HCI) || defined(CONFIG_PCI_HCI)
+#if defined(CONFIG_USB_HCI)
 	u32	rtw_hal_inirp_init(_adapter *padapter);
 	u32	rtw_hal_inirp_deinit(_adapter *padapter);
 #endif
 
-#if defined(CONFIG_PCI_HCI)
-	void	rtw_hal_irp_reset(_adapter *padapter);
-#endif
-
 u8	rtw_hal_intf_ps_func(_adapter *padapter, HAL_INTF_PS_FUNC efunc_id, u8 *val);
 
 s32	rtw_hal_xmitframe_enqueue(_adapter *padapter, struct xmit_frame *pxmitframe);
@@ -644,9 +633,6 @@ void	rtw_hal_write_rfreg(_adapter *padapter, u32 eRFPath, u32 RegAddr, u32 BitMa
 #define PHY_SetMacReg	PHY_SetBBReg
 #define PHY_QueryMacReg PHY_QueryBBReg
 
-#if defined(CONFIG_PCI_HCI)
-	s32	rtw_hal_interrupt_handler(_adapter *padapter);
-#endif
 #if  defined(CONFIG_USB_HCI) && defined(CONFIG_SUPPORT_USB_INT)
 	void	rtw_hal_interrupt_handler(_adapter *padapter, u16 pkt_len, u8 *pbuf);
 #endif
diff --git a/include/rtl8188e_recv.h b/include/rtl8188e_recv.h
index d1ccb7b..bf0d7f7 100644
--- a/include/rtl8188e_recv.h
+++ b/include/rtl8188e_recv.h
@@ -42,14 +42,6 @@
 		#endif
 	#endif /* !MAX_RECVBUF_SZ */
 
-#elif defined(CONFIG_PCI_HCI)
-	/* #ifndef CONFIG_MINIMAL_MEMORY_USAGE */
-	/*	#define MAX_RECVBUF_SZ (9100) */
-	/* #else */
-	#define MAX_RECVBUF_SZ (4000) /* about 4K
-	* #endif */
-
-
 #elif defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
 
 	#define MAX_RECVBUF_SZ (10240)
@@ -156,11 +148,6 @@ typedef struct rxreport_8188e {
 	void rtl8188eu_free_recv_priv(PADAPTER padapter);
 #endif
 
-#ifdef CONFIG_PCI_HCI
-	s32 rtl8188ee_init_recv_priv(PADAPTER padapter);
-	void rtl8188ee_free_recv_priv(PADAPTER padapter);
-#endif
-
 void rtl8188e_query_rx_desc_status(union recv_frame *precvframe, struct recv_stat *prxstat);
 
 #endif /* __RTL8188E_RECV_H__ */
diff --git a/include/rtl8192e_xmit.h b/include/rtl8192e_xmit.h
index 23deb8d..069b5d4 100644
--- a/include/rtl8192e_xmit.h
+++ b/include/rtl8192e_xmit.h
@@ -368,17 +368,6 @@ void rtl8192e_cal_txdesc_chksum(u8 *ptxdesc);
 	s32 rtl8192eu_xmitframe_complete(_adapter *padapter, struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf);
 #endif
 
-#ifdef CONFIG_PCI_HCI
-	s32 rtl8192ee_init_xmit_priv(PADAPTER padapter);
-	void rtl8192ee_free_xmit_priv(PADAPTER padapter);
-	struct xmit_buf *rtl8192ee_dequeue_xmitbuf(struct rtw_tx_ring *ring);
-	s32	rtl8192ee_hal_xmitframe_enqueue(_adapter *padapter, struct xmit_frame *pxmitframe);
-	void	rtl8192ee_xmitframe_resume(_adapter *padapter);
-	s32 rtl8192ee_hal_xmit(PADAPTER padapter, struct xmit_frame *pxmitframe);
-	s32 rtl8192ee_mgnt_xmit(PADAPTER padapter, struct xmit_frame *pmgntframe);
-	void rtl8192ee_xmit_tasklet(void *priv);
-#endif
-
 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
 	s32 rtl8192es_init_xmit_priv(PADAPTER padapter);
 	void rtl8192es_free_xmit_priv(PADAPTER padapter);
diff --git a/include/rtl8814a_recv.h b/include/rtl8814a_recv.h
index 710b1b2..5a50d5e 100644
--- a/include/rtl8814a_recv.h
+++ b/include/rtl8814a_recv.h
@@ -39,14 +39,6 @@
 		#endif
 	#endif /* !MAX_RECVBUF_SZ */
 
-#elif defined(CONFIG_PCI_HCI)
-	/* #ifndef CONFIG_MINIMAL_MEMORY_USAGE */
-	/*	#define MAX_RECVBUF_SZ (9100) */
-	/* #else */
-	#define MAX_RECVBUF_SZ (4000) /* about 4K
-	* #endif */
-
-
 #elif defined(CONFIG_SDIO_HCI)
 	#if 0
 		/* temp solution */
@@ -169,11 +161,6 @@
 	void rtl8814au_free_recv_priv(PADAPTER padapter);
 #endif
 
-#ifdef CONFIG_PCI_HCI
-	s32 rtl8814ae_init_recv_priv(PADAPTER padapter);
-	void rtl8814ae_free_recv_priv(PADAPTER padapter);
-#endif
-
 #if 0
 	/* temp solution */
 	#ifdef CONFIG_SDIO_HCI
diff --git a/include/rtl8821a_xmit.h b/include/rtl8821a_xmit.h
index d7a97e3..21d79a6 100644
--- a/include/rtl8821a_xmit.h
+++ b/include/rtl8821a_xmit.h
@@ -164,15 +164,6 @@ void rtl8821au_xmit_tasklet(void *priv);
 s32 rtl8821au_xmitframe_complete(PADAPTER padapter, struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf);
 #endif /* CONFIG_USB_HCI */
 
-#ifdef CONFIG_PCI_HCI
-s32 rtl8821e_init_xmit_priv(PADAPTER padapter);
-void rtl8821e_free_xmit_priv(PADAPTER padapter);
-struct xmit_buf *rtl8821e_dequeue_xmitbuf(struct rtw_tx_ring *ring);
-void rtl8821e_xmitframe_resume(PADAPTER padapter);
-s32 rtl8821e_hal_xmit(PADAPTER padapter, struct xmit_frame *pxmitframe);
-s32 rtl8821e_mgnt_xmit(PADAPTER padapter, struct xmit_frame *pmgntframe);
-void rtl8821e_xmit_tasklet(void *priv);
-#endif /* CONFIG_PCI_HCI */
 #endif
 
 #endif /* __RTL8821_XMIT_H__ */
diff --git a/include/rtl8821c_hal.h b/include/rtl8821c_hal.h
index d99d9d3..6bf85b7 100644
--- a/include/rtl8821c_hal.h
+++ b/include/rtl8821c_hal.h
@@ -44,13 +44,6 @@
 		#endif
 	#endif/* !MAX_RECVBUF_SZ*/
 
-#elif defined(CONFIG_PCI_HCI)
-	/*#ifndef CONFIG_MINIMAL_MEMORY_USAGE
-	#define MAX_RECVBUF_SZ (9100)
-	#else*/
-	#define MAX_RECVBUF_SZ (4096) /* about 4K */
-	/*#endif*/
-
 #elif defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
 
 	#define MAX_RECVBUF_SZ	HALMAC_RX_FIFO_SIZE_8821C
diff --git a/include/rtw_io.h b/include/rtw_io.h
index abe0c14..61a282c 100644
--- a/include/rtw_io.h
+++ b/include/rtw_io.h
@@ -282,9 +282,6 @@ struct reg_protocol_wt {
 #endif
 
 };
-#ifdef CONFIG_PCI_HCI
-#define MAX_CONTINUAL_IO_ERR 4
-#endif
 
 #ifdef CONFIG_USB_HCI
 #define MAX_CONTINUAL_IO_ERR 4
diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
index 2b17c6f..f986a02 100644
--- a/os_dep/linux/ioctl_linux.c
+++ b/os_dep/linux/ioctl_linux.c
@@ -9238,18 +9238,12 @@ static int rtw_mp_efuse_get(struct net_device *dev,
 #ifdef CONFIG_USB_HCI
 		addr = EEPROM_VID_88EU;
 #endif
-#ifdef CONFIG_PCI_HCI
-		addr = EEPROM_VID_88EE;
-#endif
 #endif /* CONFIG_RTL8188E */
 
 #ifdef CONFIG_RTL8192E
 #ifdef CONFIG_USB_HCI
 		addr = EEPROM_VID_8192EU;
 #endif
-#ifdef CONFIG_PCI_HCI
-		addr = EEPROM_VID_8192EE;
-#endif
 #endif /* CONFIG_RTL8192E */
 #ifdef CONFIG_RTL8723B
 		addr = EEPROM_VID_8723BU;
@@ -9847,18 +9841,12 @@ static int rtw_mp_efuse_set(struct net_device *dev,
 #ifdef CONFIG_USB_HCI
 		addr = EEPROM_VID_88EU;
 #endif
-#ifdef CONFIG_PCI_HCI
-		addr = EEPROM_VID_88EE;
-#endif
 #endif /* CONFIG_RTL8188E */
 
 #ifdef CONFIG_RTL8192E
 #ifdef CONFIG_USB_HCI
 		addr = EEPROM_VID_8192EU;
 #endif
-#ifdef CONFIG_PCI_HCI
-		addr = EEPROM_VID_8192EE;
-#endif
 #endif /* CONFIG_RTL8188E */
 
 #ifdef CONFIG_RTL8723B
@@ -12012,16 +12000,6 @@ static struct xmit_frame *createloopbackpkt(PADAPTER padapter, u32 size)
 	desc->txdw5 = cpu_to_le32(desc->txdw5);
 	desc->txdw6 = cpu_to_le32(desc->txdw6);
 	desc->txdw7 = cpu_to_le32(desc->txdw7);
-#ifdef CONFIG_PCI_HCI
-	desc->txdw8 = cpu_to_le32(desc->txdw8);
-	desc->txdw9 = cpu_to_le32(desc->txdw9);
-	desc->txdw10 = cpu_to_le32(desc->txdw10);
-	desc->txdw11 = cpu_to_le32(desc->txdw11);
-	desc->txdw12 = cpu_to_le32(desc->txdw12);
-	desc->txdw13 = cpu_to_le32(desc->txdw13);
-	desc->txdw14 = cpu_to_le32(desc->txdw14);
-	desc->txdw15 = cpu_to_le32(desc->txdw15);
-#endif
 
 	cal_txdesc_chksum(desc);
 
diff --git a/os_dep/linux/os_intfs.c b/os_dep/linux/os_intfs.c
index e11d462..90b73c8 100644
--- a/os_dep/linux/os_intfs.c
+++ b/os_dep/linux/os_intfs.c
@@ -1333,12 +1333,6 @@ int rtw_os_ndev_alloc(_adapter *adapter)
 	SET_NETDEV_DEV(ndev, dvobj_to_dev(adapter_to_dvobj(adapter)));
 #endif
 
-#ifdef CONFIG_PCI_HCI
-	if (adapter_to_dvobj(adapter)->bdma64)
-		ndev->features |= NETIF_F_HIGHDMA;
-	ndev->irq = adapter_to_dvobj(adapter)->irq;
-#endif
-
 #if defined(CONFIG_IOCTL_CFG80211)
 	if (rtw_cfg80211_ndev_res_alloc(adapter) != _SUCCESS) {
 		rtw_warn_on(1);
@@ -1775,9 +1769,6 @@ struct dvobj_priv *devobj_init(void)
 	rtw_macid_ctl_init(&pdvobj->macid_ctl);
 	_rtw_spinlock_init(&pdvobj->cam_ctl.lock);
 	_rtw_mutex_init(&pdvobj->cam_ctl.sec_cam_access_mutex);
-#if defined(RTK_129X_PLATFORM) && defined(CONFIG_PCI_HCI)
-	_rtw_spinlock_init(&pdvobj->io_reg_lock);
-#endif
 #ifdef CONFIG_MBSSID_CAM
 	rtw_mbid_cam_init(pdvobj);
 #endif
@@ -1835,9 +1826,6 @@ void devobj_deinit(struct dvobj_priv *pdvobj)
 	_rtw_spinlock_free(&pdvobj->cam_ctl.lock);
 	_rtw_mutex_free(&pdvobj->cam_ctl.sec_cam_access_mutex);
 
-#if defined(RTK_129X_PLATFORM) && defined(CONFIG_PCI_HCI)
-	_rtw_spinlock_free(&pdvobj->io_reg_lock);
-#endif
 #ifdef CONFIG_MBSSID_CAM
 	rtw_mbid_cam_deinit(pdvobj);
 #endif
diff --git a/os_dep/linux/rtw_proc.c b/os_dep/linux/rtw_proc.c
index 01cbc18..74c4e19 100644
--- a/os_dep/linux/rtw_proc.c
+++ b/os_dep/linux/rtw_proc.c
@@ -2213,11 +2213,6 @@ const struct rtw_proc_hdl adapter_proc_hdls[] = {
 	RTW_PROC_HDL_SSEQ("int_logs", proc_get_int_logs, NULL),
 #endif
 
-#ifdef CONFIG_PCI_HCI
-	RTW_PROC_HDL_SSEQ("rx_ring", proc_get_rx_ring, NULL),
-	RTW_PROC_HDL_SSEQ("tx_ring", proc_get_tx_ring, NULL),
-#endif
-
 #ifdef CONFIG_WOWLAN
 	RTW_PROC_HDL_SSEQ("wow_pattern_info", proc_get_pattern_info, proc_set_pattern_info),
 	RTW_PROC_HDL_SSEQ("wowlan_last_wake_reason", proc_get_wakeup_reason, NULL),