1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2010 Google, Inc.
5 * This software is licensed under the terms of the GNU General Public
6 * License version 2, as published by the Free Software Foundation, and
7 * may be copied, distributed, and modified under those terms.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 #ifndef __TEGRA_USB_PHY_H
17 #define __TEGRA_USB_PHY_H
19 #include <linux/clk.h>
20 #include <linux/reset.h>
21 #include <linux/usb/otg.h>
24 * utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers
25 * should be set up by clk-tegra, false if by the PHY code
26 * has_hostpc: true if the USB controller has the HOSTPC extension, which
27 * changes the location of the PHCD and PTS fields
28 * requires_usbmode_setup: true if the USBMODE register needs to be set to
30 * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level
31 * and hsdiscon_level should be set for adequate signal quality
34 struct tegra_phy_soc_config {
35 bool utmi_pll_config_in_car_module;
37 bool requires_usbmode_setup;
38 bool requires_extra_tuning_parameters;
41 struct tegra_utmip_config {
42 u8 hssync_start_delay;
46 bool xcvr_setup_use_fuses;
55 enum tegra_usb_phy_port_speed {
56 TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
57 TEGRA_USB_PHY_PORT_SPEED_LOW,
58 TEGRA_USB_PHY_PORT_SPEED_HIGH,
61 struct tegra_xtal_freq;
63 struct tegra_usb_phy {
65 const struct tegra_xtal_freq *freq;
67 void __iomem *pad_regs;
71 struct regulator *vbus;
72 enum usb_dr_mode mode;
74 const struct tegra_phy_soc_config *soc_config;
80 struct reset_control *pad_rst;
83 void tegra_usb_phy_preresume(struct usb_phy *phy);
85 void tegra_usb_phy_postresume(struct usb_phy *phy);
87 void tegra_ehci_phy_restore_start(struct usb_phy *phy,
88 enum tegra_usb_phy_port_speed port_speed);
90 void tegra_ehci_phy_restore_end(struct usb_phy *phy);
92 #endif /* __TEGRA_USB_PHY_H */