2 * io.h - DesignWare USB3 DRD IO Header
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The names of the above-listed copyright holders may not be used
19 * to endorse or promote products derived from this software without
20 * specific prior written permission.
22 * ALTERNATIVELY, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2, as published by the Free
24 * Software Foundation.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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39 #ifndef __DRIVERS_USB_DWC3_IO_H
40 #define __DRIVERS_USB_DWC3_IO_H
46 static inline u32 dwc3_readl(void __iomem *base, u32 offset)
49 * We requested the mem region starting from the Globals address
50 * space, see dwc3_probe in core.c.
51 * However, the offsets are given starting from xHCI address space.
53 return readl(base + (offset - DWC3_GLOBALS_REGS_START));
56 static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
59 * We requested the mem region starting from the Globals address
60 * space, see dwc3_probe in core.c.
61 * However, the offsets are given starting from xHCI address space.
63 writel(value, base + (offset - DWC3_GLOBALS_REGS_START));
66 #endif /* __DRIVERS_USB_DWC3_IO_H */