185d5e707SKishon Vijay Abraham I /** 285d5e707SKishon Vijay Abraham I * io.h - DesignWare USB3 DRD IO Header 385d5e707SKishon Vijay Abraham I * 430c31d58SKishon Vijay Abraham I * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com 585d5e707SKishon Vijay Abraham I * 685d5e707SKishon Vijay Abraham I * Authors: Felipe Balbi <balbi@ti.com>, 785d5e707SKishon Vijay Abraham I * Sebastian Andrzej Siewior <bigeasy@linutronix.de> 885d5e707SKishon Vijay Abraham I * 930c31d58SKishon Vijay Abraham I * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/io.h) and ported 1030c31d58SKishon Vijay Abraham I * to uboot. 1185d5e707SKishon Vijay Abraham I * 1230c31d58SKishon Vijay Abraham I * commit 2c4cbe6e5a : usb: dwc3: add tracepoints to aid debugging 1330c31d58SKishon Vijay Abraham I * 1430c31d58SKishon Vijay Abraham I * SPDX-License-Identifier: GPL-2.0 1530c31d58SKishon Vijay Abraham I * 1685d5e707SKishon Vijay Abraham I */ 1785d5e707SKishon Vijay Abraham I 1885d5e707SKishon Vijay Abraham I #ifndef __DRIVERS_USB_DWC3_IO_H 1985d5e707SKishon Vijay Abraham I #define __DRIVERS_USB_DWC3_IO_H 2085d5e707SKishon Vijay Abraham I 21*9848e574SKishon Vijay Abraham I #include <asm/io.h> 2285d5e707SKishon Vijay Abraham I 2385d5e707SKishon Vijay Abraham I static inline u32 dwc3_readl(void __iomem *base, u32 offset) 2485d5e707SKishon Vijay Abraham I { 2585d5e707SKishon Vijay Abraham I u32 offs = offset - DWC3_GLOBALS_REGS_START; 2685d5e707SKishon Vijay Abraham I u32 value; 2785d5e707SKishon Vijay Abraham I 2885d5e707SKishon Vijay Abraham I /* 2985d5e707SKishon Vijay Abraham I * We requested the mem region starting from the Globals address 3085d5e707SKishon Vijay Abraham I * space, see dwc3_probe in core.c. 3185d5e707SKishon Vijay Abraham I * However, the offsets are given starting from xHCI address space. 3285d5e707SKishon Vijay Abraham I */ 3385d5e707SKishon Vijay Abraham I value = readl(base + offs); 3485d5e707SKishon Vijay Abraham I 3585d5e707SKishon Vijay Abraham I return value; 3685d5e707SKishon Vijay Abraham I } 3785d5e707SKishon Vijay Abraham I 3885d5e707SKishon Vijay Abraham I static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value) 3985d5e707SKishon Vijay Abraham I { 4085d5e707SKishon Vijay Abraham I u32 offs = offset - DWC3_GLOBALS_REGS_START; 4185d5e707SKishon Vijay Abraham I 4285d5e707SKishon Vijay Abraham I /* 4385d5e707SKishon Vijay Abraham I * We requested the mem region starting from the Globals address 4485d5e707SKishon Vijay Abraham I * space, see dwc3_probe in core.c. 4585d5e707SKishon Vijay Abraham I * However, the offsets are given starting from xHCI address space. 4685d5e707SKishon Vijay Abraham I */ 4785d5e707SKishon Vijay Abraham I writel(value, base + offs); 4885d5e707SKishon Vijay Abraham I } 4985d5e707SKishon Vijay Abraham I 5085d5e707SKishon Vijay Abraham I #endif /* __DRIVERS_USB_DWC3_IO_H */ 51