| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 1 | /** |
| 2 | * io.h - DesignWare USB3 DRD IO Header |
| 3 | * |
| 4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com |
| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 5 | * |
| 6 | * Authors: Felipe Balbi <balbi@ti.com>, |
| 7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions, and the following disclaimer, |
| 14 | * without modification. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. The names of the above-listed copyright holders may not be used |
| 19 | * to endorse or promote products derived from this software without |
| 20 | * specific prior written permission. |
| 21 | * |
| 22 | * ALTERNATIVELY, this software may be distributed under the terms of the |
| 23 | * GNU General Public License ("GPL") version 2, as published by the Free |
| 24 | * Software Foundation. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| 27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 28 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 30 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 37 | */ |
| 38 | |
| 39 | #ifndef __DRIVERS_USB_DWC3_IO_H |
| 40 | #define __DRIVERS_USB_DWC3_IO_H |
| 41 | |
| Felipe Balbi | 25b8ff6 | 2011-11-04 12:32:47 +0200 | [diff] [blame] | 42 | #include <linux/io.h> |
| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 43 | |
| Ido Shayevitz | 51249dc | 2012-04-24 14:18:39 +0300 | [diff] [blame] | 44 | #include "core.h" |
| 45 | |
| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 46 | static inline u32 dwc3_readl(void __iomem *base, u32 offset) |
| 47 | { |
| Ido Shayevitz | 51249dc | 2012-04-24 14:18:39 +0300 | [diff] [blame] | 48 | /* |
| 49 | * We requested the mem region starting from the Globals address |
| 50 | * space, see dwc3_probe in core.c. |
| 51 | * However, the offsets are given starting from xHCI address space. |
| 52 | */ |
| 53 | return readl(base + (offset - DWC3_GLOBALS_REGS_START)); |
| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value) |
| 57 | { |
| Ido Shayevitz | 51249dc | 2012-04-24 14:18:39 +0300 | [diff] [blame] | 58 | /* |
| 59 | * We requested the mem region starting from the Globals address |
| 60 | * space, see dwc3_probe in core.c. |
| 61 | * However, the offsets are given starting from xHCI address space. |
| 62 | */ |
| 63 | writel(value, base + (offset - DWC3_GLOBALS_REGS_START)); |
| Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | #endif /* __DRIVERS_USB_DWC3_IO_H */ |