mirror of
https://github.com/AsahiLinux/u-boot
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30c31d5897
Modified the file header to the format that is used in u-boot. Also included in the header, the commit in linux kernel from which each of these files are added. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
69 lines
1.9 KiB
C
69 lines
1.9 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 <linux/io.h>
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#include "trace.h"
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#include "debug.h"
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#include "core.h"
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static inline u32 dwc3_readl(void __iomem *base, u32 offset)
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{
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u32 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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/*
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* When tracing we want to make it easy to find the correct address on
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* documentation, so we revert it back to the proper addresses, the
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* same way they are described on SNPS documentation
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*/
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dwc3_trace(trace_dwc3_readl, "addr %p value %08x",
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base - DWC3_GLOBALS_REGS_START + offset, value);
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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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u32 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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* When tracing we want to make it easy to find the correct address on
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* documentation, so we revert it back to the proper addresses, the
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* same way they are described on SNPS documentation
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*/
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dwc3_trace(trace_dwc3_writel, "addr %p value %08x",
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base - DWC3_GLOBALS_REGS_START + offset, value);
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}
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#endif /* __DRIVERS_USB_DWC3_IO_H */
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