2 * io.h - DesignWare USB3 DRD IO Header
4 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
9 * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/io.h) and ported
12 * commit 2c4cbe6e5a : usb: dwc3: add tracepoints to aid debugging
14 * SPDX-License-Identifier: GPL-2.0
18 #ifndef __DRIVERS_USB_DWC3_IO_H
19 #define __DRIVERS_USB_DWC3_IO_H
23 static inline u32 dwc3_readl(void __iomem *base, u32 offset)
25 u32 offs = offset - DWC3_GLOBALS_REGS_START;
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.
33 value = readl(base + offs);
38 static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
40 u32 offs = offset - DWC3_GLOBALS_REGS_START;
43 * We requested the mem region starting from the Globals address
44 * space, see dwc3_probe in core.c.
45 * However, the offsets are given starting from xHCI address space.
47 writel(value, base + offs);
50 #endif /* __DRIVERS_USB_DWC3_IO_H */