56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/**
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* io.h - DesignWare USB3 DRD IO Header
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*
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* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
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*
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* Authors: Felipe Balbi <balbi@ti.com>,
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* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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* Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/io.h) and ported
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* to uboot.
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*
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* commit 2c4cbe6e5a : usb: dwc3: add tracepoints to aid debugging
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*
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* SPDX-License-Identifier: GPL-2.0
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*
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*/
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#ifndef __DRIVERS_USB_DWC3_IO_H
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#define __DRIVERS_USB_DWC3_IO_H
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#include <asm/io.h>
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#define CACHELINE_SIZE CONFIG_SYS_CACHELINE_SIZE
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static inline u32 dwc3_readl(void __iomem *base, u32 offset)
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{
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unsigned long offs = offset - DWC3_GLOBALS_REGS_START;
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u32 value;
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/*
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* We requested the mem region starting from the Globals address
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* space, see dwc3_probe in core.c.
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* However, the offsets are given starting from xHCI address space.
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*/
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value = readl(base + offs);
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return value;
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}
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static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
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{
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unsigned long offs = offset - DWC3_GLOBALS_REGS_START;
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/*
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* We requested the mem region starting from the Globals address
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* space, see dwc3_probe in core.c.
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* However, the offsets are given starting from xHCI address space.
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*/
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writel(value, base + offs);
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}
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static inline void dwc3_flush_cache(uintptr_t addr, int length)
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{
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flush_dcache_range(addr, addr + ROUND(length, CACHELINE_SIZE));
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}
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#endif /* __DRIVERS_USB_DWC3_IO_H */
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