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 26 static 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 36 static 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 */ 47