mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.6 KiB
57 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/** |
|
* io.h - DesignWare USB3 DRD IO Header |
|
* |
|
* Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com |
|
* |
|
* Authors: Felipe Balbi <[email protected]>, |
|
* Sebastian Andrzej Siewior <[email protected]> |
|
*/ |
|
|
|
#ifndef __DRIVERS_USB_DWC3_IO_H |
|
#define __DRIVERS_USB_DWC3_IO_H |
|
|
|
#include <linux/io.h> |
|
#include "trace.h" |
|
#include "debug.h" |
|
#include "core.h" |
|
|
|
static inline u32 dwc3_readl(void __iomem *base, u32 offset) |
|
{ |
|
u32 value; |
|
|
|
/* |
|
* We requested the mem region starting from the Globals address |
|
* space, see dwc3_probe in core.c. |
|
* However, the offsets are given starting from xHCI address space. |
|
*/ |
|
value = readl(base + offset - DWC3_GLOBALS_REGS_START); |
|
|
|
/* |
|
* When tracing we want to make it easy to find the correct address on |
|
* documentation, so we revert it back to the proper addresses, the |
|
* same way they are described on SNPS documentation |
|
*/ |
|
trace_dwc3_readl(base - DWC3_GLOBALS_REGS_START, offset, value); |
|
|
|
return value; |
|
} |
|
|
|
static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value) |
|
{ |
|
/* |
|
* We requested the mem region starting from the Globals address |
|
* space, see dwc3_probe in core.c. |
|
* However, the offsets are given starting from xHCI address space. |
|
*/ |
|
writel(value, base + offset - DWC3_GLOBALS_REGS_START); |
|
|
|
/* |
|
* When tracing we want to make it easy to find the correct address on |
|
* documentation, so we revert it back to the proper addresses, the |
|
* same way they are described on SNPS documentation |
|
*/ |
|
trace_dwc3_writel(base - DWC3_GLOBALS_REGS_START, offset, value); |
|
} |
|
|
|
#endif /* __DRIVERS_USB_DWC3_IO_H */
|
|
|