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/*
* Copyright (C) 2010 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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 __TEGRA_USB_PHY_H
#define __TEGRA_USB_PHY_H
#include <linux/clk.h>
#include <linux/usb/otg.h>
/*
* utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers
* should be set up by clk-tegra, false if by the PHY code
* has_hostpc: true if the USB controller has the HOSTPC extension, which
* changes the location of the PHCD and PTS fields
* requires_usbmode_setup: true if the USBMODE register needs to be set to
* enter host mode
* requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level
* and hsdiscon_level should be set for adequate signal quality
*/
struct tegra_phy_soc_config {
bool utmi_pll_config_in_car_module;
bool has_hostpc;
bool requires_usbmode_setup;
bool requires_extra_tuning_parameters;
};
struct tegra_utmip_config {
u8 hssync_start_delay;
u8 elastic_limit;
u8 idle_wait_delay;
u8 term_range_adj;
bool xcvr_setup_use_fuses;
u8 xcvr_setup;
u8 xcvr_lsfslew;
u8 xcvr_lsrslew;
u8 xcvr_hsslew;
u8 hssquelch_level;
u8 hsdiscon_level;
};
enum tegra_usb_phy_port_speed {
TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
TEGRA_USB_PHY_PORT_SPEED_LOW,
TEGRA_USB_PHY_PORT_SPEED_HIGH,
};
struct tegra_xtal_freq;
struct tegra_usb_phy {
int instance;
const struct tegra_xtal_freq *freq;
void __iomem *regs;
void __iomem *pad_regs;
struct clk *clk;
struct clk *pll_u;
struct clk *pad_clk;
struct regulator *vbus;
enum usb_dr_mode mode;
void *config;
const struct tegra_phy_soc_config *soc_config;
struct usb_phy *ulpi;
struct usb_phy u_phy;
bool is_legacy_phy;
bool is_ulpi_phy;
int reset_gpio;
};
void tegra_usb_phy_preresume(struct usb_phy *phy);
void tegra_usb_phy_postresume(struct usb_phy *phy);
void tegra_ehci_phy_restore_start(struct usb_phy *phy,
enum tegra_usb_phy_port_speed port_speed);
void tegra_ehci_phy_restore_end(struct usb_phy *phy);
#endif /* __TEGRA_USB_PHY_H */