include/linux/usb/tegra_usb_phy.h

   1 /*
   2  * Copyright (C) 2010 Google, Inc.
   3  *
   4  * This software is licensed under the terms of the GNU General Public
   5  * License version 2, as published by the Free Software Foundation, and
   6  * may be copied, distributed, and modified under those terms.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  */
  14
  15 #ifndef __TEGRA_USB_PHY_H
  16 #define __TEGRA_USB_PHY_H
  17
  18 #include <linux/clk.h>
  19 #include <linux/usb/otg.h>
  20
  21 struct tegra_utmip_config {
  22         u8 hssync_start_delay;
  23         u8 elastic_limit;
  24         u8 idle_wait_delay;
  25         u8 term_range_adj;
  26         u8 xcvr_setup;
  27         u8 xcvr_lsfslew;
  28         u8 xcvr_lsrslew;
  29 };
  30
  31 struct tegra_ulpi_config {
  32         int reset_gpio;
  33         const char *clk;
  34 };
  35
  36 enum tegra_usb_phy_port_speed {
  37         TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
  38         TEGRA_USB_PHY_PORT_SPEED_LOW,
  39         TEGRA_USB_PHY_PORT_SPEED_HIGH,
  40 };
  41
  42 enum tegra_usb_phy_mode {
  43         TEGRA_USB_PHY_MODE_DEVICE,
  44         TEGRA_USB_PHY_MODE_HOST,
  45 };
  46
  47 struct tegra_xtal_freq;
  48
  49 struct tegra_usb_phy {
  50         int instance;
  51         const struct tegra_xtal_freq *freq;
  52         void __iomem *regs;
  53         void __iomem *pad_regs;
  54         struct clk *clk;
  55         struct clk *pll_u;
  56         struct clk *pad_clk;
  57         enum tegra_usb_phy_mode mode;
  58         void *config;
  59         struct usb_phy *ulpi;
  60         struct usb_phy u_phy;
  61         struct device *dev;
  62         bool is_legacy_phy;
  63         bool is_ulpi_phy;
  64 };
  65
  66 struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
  67         void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode);
  68
  69 void tegra_usb_phy_preresume(struct usb_phy *phy);
  70
  71 void tegra_usb_phy_postresume(struct usb_phy *phy);
  72
  73 void tegra_ehci_phy_restore_start(struct usb_phy *phy,
  74                                  enum tegra_usb_phy_port_speed port_speed);
  75
  76 void tegra_ehci_phy_restore_end(struct usb_phy *phy);
  77
  78 void tegra_ehci_set_pts(struct usb_phy *x, u8 pts_val);
  79
  80 void tegra_ehci_set_phcd(struct usb_phy *x, bool enable);
  81
  82 #endif /* __TEGRA_USB_PHY_H */