1/**
 2 * io.h - DesignWare USB3 DRD IO Header
 3 *
 4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
 5 *
 6 * Authors: Felipe Balbi <balbi@ti.com>,
 7 *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
 8 *
 9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2  of
11 * the License as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 */
18
19#ifndef __DRIVERS_USB_DWC3_IO_H
20#define __DRIVERS_USB_DWC3_IO_H
21
22#include <linux/io.h>
23
24#include "core.h"
25
26static inline u32 dwc3_readl(void __iomem *base, u32 offset)
27{
28	/*
29	 * We requested the mem region starting from the Globals address
30	 * space, see dwc3_probe in core.c.
31	 * However, the offsets are given starting from xHCI address space.
32	 */
33	return readl(base + (offset - DWC3_GLOBALS_REGS_START));
34}
35
36static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
37{
38	/*
39	 * We requested the mem region starting from the Globals address
40	 * space, see dwc3_probe in core.c.
41	 * However, the offsets are given starting from xHCI address space.
42	 */
43	writel(value, base + (offset - DWC3_GLOBALS_REGS_START));
44}
45
46#endif /* __DRIVERS_USB_DWC3_IO_H */