include/linux/phy/omap_usb.h

   1 /*
   2  * omap_usb.h -- omap usb2 phy header file
   3  *
   4  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Author: Kishon Vijay Abraham I <kishon@ti.com>
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #ifndef __DRIVERS_OMAP_USB2_H
  20 #define __DRIVERS_OMAP_USB2_H
  21
  22 #include <linux/io.h>
  23 #include <linux/usb/otg.h>
  24
  25 struct usb_dpll_params {
  26         u16     m;
  27         u8      n;
  28         u8      freq:3;
  29         u8      sd;
  30         u32     mf;
  31 };
  32
  33 struct omap_usb {
  34         struct usb_phy          phy;
  35         struct phy_companion    *comparator;
  36         void __iomem            *pll_ctrl_base;
  37         void __iomem            *phy_base;
  38         struct device           *dev;
  39         struct device           *control_dev;
  40         struct clk              *wkupclk;
  41         struct clk              *optclk;
  42         u8                      flags;
  43 };
  44
  45 struct usb_phy_data {
  46         const char *label;
  47         u8 flags;
  48 };
  49
  50 /* Driver Flags */
  51 #define OMAP_USB2_HAS_START_SRP (1 << 0)
  52 #define OMAP_USB2_HAS_SET_VBUS (1 << 1)
  53 #define OMAP_USB2_CALIBRATE_FALSE_DISCONNECT (1 << 2)
  54
  55 #define phy_to_omapusb(x)       container_of((x), struct omap_usb, phy)
  56
  57 #if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
  58 extern int omap_usb2_set_comparator(struct phy_companion *comparator);
  59 #else
  60 static inline int omap_usb2_set_comparator(struct phy_companion *comparator)
  61 {
  62         return -ENODEV;
  63 }
  64 #endif
  65
  66 static inline u32 omap_usb_readl(void __iomem *addr, unsigned offset)
  67 {
  68         return __raw_readl(addr + offset);
  69 }
  70
  71 static inline void omap_usb_writel(void __iomem *addr, unsigned offset,
  72         u32 data)
  73 {
  74         __raw_writel(data, addr + offset);
  75 }
  76
  77 #endif /* __DRIVERS_OMAP_USB_H */