diff --git a/sys/arch/arm/allwinner/sdxcreg.h b/sys/arch/arm/allwinner/sdxcreg.h
deleted file mode 100644
index 8c36f250cfd4..000000000000
--- a/sys/arch/arm/allwinner/sdxcreg.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* $NetBSD: sdxcreg.h,v 1.1 2013/09/07 19:48:57 matt Exp $ */
-/*-
- * Copyright (c) 2013 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Matt Thomas of 3am Software Foundry.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _ARM_ALLWINNER_SDXCREG_H_
-#define _ARM_ALLWINNER_SDXCREG_H_
-
-/* SDXC definitions */
-#define SDXC_GCTRL_REG			0x0000
-#define SDXC_CLKCR_REG			0x0004
-#define SDXC_TIMEOUT_REG		0x0008
-#define SDXC_WIDTH_REG			0x000c
-#define SDXC_BLKSZ_REG			0x0010
-#define SDXC_BYTECNT_REG		0x0014
-#define SDXC_CMD_REG			0x0018
-#define SDXC_ARG_REG			0x001c
-#define SDXC_RESP0_REG			0x0020
-#define SDXC_RESP1_REG			0x0024
-#define SDXC_RESP2_REG			0x0028
-#define SDXC_RESP3_REG			0x002c
-#define SDXC_IMASK_REG			0x0030
-#define SDXC_MINT_REG			0x0034
-#define SDXC_RINT_REG			0x0038
-#define SDXC_STATUS_REG			0x003c
-#define SDXC_FTRGLVL_REG		0x0040
-#define SDXC_FUNCSEL_REG		0x0044
-#define SDXC_CBCR_REG			0x0048
-#define SDXC_BBCR_REG			0x004c
-#define SDXC_DMAC_REG			0x0080
-#define SDXC_DLBA_REG			0x0084
-#define SDXC_IDST_REG			0x0088
-#define SDXC_IDIE_REG			0x008c
-#define SDXC_CHDA_REG			0x0090
-#define SDXC_CBDA_REG			0x0094
-#define SDXC_FIFO_REG			0x0100
-
-#define	SDXC_GCTRL_AHB_ACCESS		__BIT(31)
-#define	SDXC_GCTRL_DDR_MODE		__BIT(10)
-#define	SDXC_GCTRL_POS_EDGE_LATCH_DATA	__BIT(9)
-#define	SDXC_GCTRL_DEBOUNCE_ENABLE	__BIT(8)
-#define	SDXC_GCTRL_DMA_ENABLE		__BIT(5)
-#define	SDXC_GCTRL_INT_ENABLE		__BIT(4)
-#define	SDXC_GCTRL_DMA_RESET		__BIT(2)
-#define	SDXC_GCTRL_FIFO_RESET		__BIT(1)
-#define	SDXC_GCTRL_SOFT_RESET		__BIT(0)
-
-#define	SDXC_CARD_LOW_POWER_ON		__BIT(17)
-#define	SDXC_CARD_CLK_ON		__BIT(16)
-
-#define SDXC_BUS_WIDTH_1		(0)
-#define SDXC_BUS_WIDTH_4		(1)
-#define SDXC_BUS_WIDTH_8		(2)
-
-#define SDXC_CMD_START			__BIT(31)
-#define SDXC_CMD_VOL_SWITCH		__BIT(27)
-#define SDXC_CMD_DISBALE_BOOT		__BIT(26)
-#define SDXC_CMD_BOOT_ACK_EXP		__BIT(25)
-#define SDXC_CMD_ALT_BOOT_OP		__BIT(24)
-#define SDXC_CMD_END_BOOT		__BIT(24)
-#define SDXC_CMD_CCS_EXP		__BIT(23)
-#define SDXC_CMD_RD_CE_ATA_DEV		__BIT(22)
-#define SDXC_CMD_UP_CLK_ONLY		__BIT(21)
-#define SDXC_CMD_SEND_INIT_SEQ		__BIT(15)
-#define SDXC_CMD_STOP_ABORT_CMD		__BIT(11)
-#define SDXC_CMD_WAIT_PRE_OVER		__BIT(11)
-#define SDXC_CMD_SEND_AUTO_STOP		__BIT(11)
-#define SDXC_CMD_SEQ_MODE		__BIT(11)
-#define SDXC_CMD_WRITE			__BIT(10)
-#define SDXC_CMD_DATA_EXP		__BIT(9)
-#define SDXC_CMD_CHECK_RESP_CRC		__BIT(8)
-#define SDXC_CMD_LONG_RESP		__BIT(7)
-#define SDXC_CMD_RESP_EXP		__BIT(6)
-
-#define SDXC_INT_ERR_SUM		( SDXC_INT_END_BIT_ERR \
-					| SDXC_INT_START_BIT_ERR \
-					| SDXC_INT_HARDWARE_LOCKED \
-					| SDXC_INT_FIFO_RUN_ERR \
-					| SDXC_INT_DATA_TIMEOUT \
-					| SDXC_INT_RESP_TIMEOUT \
-					| SDXC_INT_RESP_CRC_ERR \
-					| SDXC_INT_DATA_CRC_ERR \
-					| SDXC_INT_RESP_ERR )
-#define SDXC_INT_CARD_REMOVE		__BIT(31)
-#define SDXC_INT_CARD_INSERT		__BIT(30)
-#define SDXC_INT_SDIO_INT		__BIT(16)
-#define SDXC_INT_END_BIT_ERR		__BIT(15)
-#define SDXC_INT_AUTO_CMD_DONE		__BIT(14)
-#define SDXC_INT_START_BIT_ERR		__BIT(13)
-#define SDXC_INT_HARDWARE_LOCKED	__BIT(12)
-#define SDXC_INT_FIFO_RUN_ERR		__BIT(11)
-#define SDXC_INT_VOL_CHG_DONE		__BIT(10)
-#define SDXC_INT_DATA_STARVE		__BIT(10)
-#define SDXC_INT_BOOT_START		__BIT(9)
-#define SDXC_INT_DATA_TIMEOUT		__BIT(9)
-#define SDXC_INT_ACK_RCV		__BIT(8)
-#define SDXC_INT_RESP_TIMEOUT		__BIT(8)
-#define SDXC_INT_DATA_CRC_ERR		__BIT(7)
-#define SDXC_INT_RESP_CRC_ERR		__BIT(6)
-#define SDXC_INT_RX_DATA_REQ		__BIT(5)
-#define SDXC_INT_TX_DATA_REQ		__BIT(4)
-#define SDXC_INT_DATA_OVER		__BIT(3)
-#define SDXC_INT_CMD_DONE		__BIT(2)
-#define SDXC_INT_RESP_ERR		__BIT(1)
-
-#endif /* _ARM_ALLWINNER_SDXCREG_H_ */