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kernel/linux-rt-4.4.41/include/linux/phy/omap_usb.h 2.51 KB
5113f6f70   김현기   kernel add
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  /*
   * omap_usb.h -- omap usb2 phy header file
   *
   * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * Author: Kishon Vijay Abraham I <kishon@ti.com>
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   */
  
  #ifndef __DRIVERS_OMAP_USB2_H
  #define __DRIVERS_OMAP_USB2_H
  
  #include <linux/io.h>
  #include <linux/usb/otg.h>
  
  struct usb_dpll_params {
  	u16	m;
  	u8	n;
  	u8	freq:3;
  	u8	sd;
  	u32	mf;
  };
  
  enum omap_usb_phy_type {
  	TYPE_USB2,    /* USB2_PHY, power down in CONTROL_DEV_CONF */
  	TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
  	TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */
  };
  
  struct omap_usb {
  	struct usb_phy		phy;
  	struct phy_companion	*comparator;
  	void __iomem		*pll_ctrl_base;
  	void __iomem		*phy_base;
  	struct device		*dev;
  	struct device		*control_dev;
  	struct clk		*wkupclk;
  	struct clk		*optclk;
  	u8			flags;
  	enum omap_usb_phy_type	type;
  	struct regmap		*syscon_phy_power; /* ctrl. reg. acces */
  	unsigned int		power_reg; /* power reg. index within syscon */
  	u32			mask;
  	u32			power_on;
  	u32			power_off;
  };
  
  struct usb_phy_data {
  	const char *label;
  	u8 flags;
  	u32 mask;
  	u32 power_on;
  	u32 power_off;
  };
  
  /* Driver Flags */
  #define OMAP_USB2_HAS_START_SRP (1 << 0)
  #define OMAP_USB2_HAS_SET_VBUS (1 << 1)
  #define OMAP_USB2_CALIBRATE_FALSE_DISCONNECT (1 << 2)
  
  #define OMAP_DEV_PHY_PD		BIT(0)
  #define OMAP_USB2_PHY_PD	BIT(28)
  
  #define AM437X_USB2_PHY_PD		BIT(0)
  #define AM437X_USB2_OTG_PD		BIT(1)
  #define AM437X_USB2_OTGVDET_EN		BIT(19)
  #define AM437X_USB2_OTGSESSEND_EN	BIT(20)
  
  #define	phy_to_omapusb(x)	container_of((x), struct omap_usb, phy)
  
  #if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
  extern int omap_usb2_set_comparator(struct phy_companion *comparator);
  #else
  static inline int omap_usb2_set_comparator(struct phy_companion *comparator)
  {
  	return -ENODEV;
  }
  #endif
  
  static inline u32 omap_usb_readl(void __iomem *addr, unsigned offset)
  {
  	return __raw_readl(addr + offset);
  }
  
  static inline void omap_usb_writel(void __iomem *addr, unsigned offset,
  	u32 data)
  {
  	__raw_writel(data, addr + offset);
  }
  
  #endif /* __DRIVERS_OMAP_USB_H */