include/linux/usb/omap_control_usb.h

   1 /*
   2  * omap_control_usb.h - Header file for the USB part of control module.
   3  *
   4  * Copyright (C) 2013 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 __OMAP_CONTROL_USB_H__
  20 #define __OMAP_CONTROL_USB_H__
  21
  22 enum omap_control_usb_type {
  23         OMAP_CTRL_TYPE_OTGHS = 1,       /* Mailbox OTGHS_CONTROL */
  24         OMAP_CTRL_TYPE_USB2,    /* USB2_PHY, power down in CONTROL_DEV_CONF */
  25         OMAP_CTRL_TYPE_PIPE3,   /* PIPE3 PHY, DPLL & seperate Rx/Tx power */
  26         OMAP_CTRL_TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
  27 };
  28
  29 struct omap_control_usb {
  30         struct device *dev;
  31
  32         u32 __iomem *otghs_control;
  33         u32 __iomem *power;
  34         u32 __iomem *power_aux;
  35
  36         struct clk *sys_clk;
  37
  38         enum omap_control_usb_type type;
  39 };
  40
  41 enum omap_control_usb_mode {
  42         USB_MODE_UNDEFINED = 0,
  43         USB_MODE_HOST,
  44         USB_MODE_DEVICE,
  45         USB_MODE_DISCONNECT,
  46 };
  47
  48 #define OMAP_CTRL_DEV_PHY_PD            BIT(0)
  49
  50 #define OMAP_CTRL_DEV_AVALID            BIT(0)
  51 #define OMAP_CTRL_DEV_BVALID            BIT(1)
  52 #define OMAP_CTRL_DEV_VBUSVALID         BIT(2)
  53 #define OMAP_CTRL_DEV_SESSEND           BIT(3)
  54 #define OMAP_CTRL_DEV_IDDIG             BIT(4)
  55
  56 #define OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK       0x003FC000
  57 #define OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT      0xE
  58
  59 #define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK      0xFFC00000
  60 #define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT     0x16
  61
  62 #define OMAP_CTRL_USB3_PHY_TX_RX_POWERON        0x3
  63 #define OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF       0x0
  64
  65 #define OMAP_CTRL_USB2_PHY_PD           BIT(28)
  66
  67 #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB)
  68 extern void omap_control_usb_phy_power(struct device *dev, int on);
  69 extern void omap_control_usb_set_mode(struct device *dev,
  70         enum omap_control_usb_mode mode);
  71 #else
  72
  73 static inline void omap_control_usb_phy_power(struct device *dev, int on)
  74 {
  75 }
  76
  77 static inline void omap_control_usb_set_mode(struct device *dev,
  78         enum omap_control_usb_mode mode)
  79 {
  80 }
  81 #endif
  82
  83 #endif  /* __OMAP_CONTROL_USB_H__ */