LXR linux/include/linux/usb/tegra_usb

   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
  21struct 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
  31struct tegra_ulpi_config {
  32        int reset_gpio;
  33        const char *clk;
  34};
  35
  36enum 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
  42enum tegra_usb_phy_mode {
  43        TEGRA_USB_PHY_MODE_DEVICE,
  44        TEGRA_USB_PHY_MODE_HOST,
  45        TEGRA_USB_PHY_MODE_OTG,
  46};
  47
  48struct tegra_xtal_freq;
  49
  50struct tegra_usb_phy {
  51        int instance;
  52        const struct tegra_xtal_freq *freq;
  53        void __iomem *regs;
  54        void __iomem *pad_regs;
  55        struct clk *clk;
  56        struct clk *pll_u;
  57        struct clk *pad_clk;
  58        enum tegra_usb_phy_mode mode;
  59        void *config;
  60        struct usb_phy *ulpi;
  61        struct usb_phy u_phy;
  62        struct device *dev;
  63        bool is_legacy_phy;
  64        bool is_ulpi_phy;
  65        int reset_gpio;
  66};
  67
  68struct usb_phy *tegra_usb_get_phy(struct device_node *dn);
  69
  70void tegra_usb_phy_preresume(struct usb_phy *phy);
  71
  72void tegra_usb_phy_postresume(struct usb_phy *phy);
  73
  74void tegra_ehci_phy_restore_start(struct usb_phy *phy,
  75                                 enum tegra_usb_phy_port_speed port_speed);
  76
  77void tegra_ehci_phy_restore_end(struct usb_phy *phy);
  78
  79#endif /* __TEGRA_USB_PHY_H */
  80