tegra_usb_phy.h

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2010 Google, Inc.
 4 */
 5
 6#ifndef __TEGRA_USB_PHY_H
 7#define __TEGRA_USB_PHY_H
 8
 9#include <linux/clk.h>
10#include <linux/regmap.h>
11#include <linux/reset.h>
12#include <linux/usb/otg.h>
13
14struct gpio_desc;
15
16/*
17 * utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers
18 *     should be set up by clk-tegra, false if by the PHY code
19 * has_hostpc: true if the USB controller has the HOSTPC extension, which
20 *     changes the location of the PHCD and PTS fields
21 * requires_usbmode_setup: true if the USBMODE register needs to be set to
22 *      enter host mode
23 * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level
24 *      and hsdiscon_level should be set for adequate signal quality
25 * requires_pmc_ao_power_up: true if USB AO is powered down by default
26 */
27
28struct tegra_phy_soc_config {
29	bool utmi_pll_config_in_car_module;
30	bool has_hostpc;
31	bool requires_usbmode_setup;
32	bool requires_extra_tuning_parameters;
33	bool requires_pmc_ao_power_up;
34};
35
36struct tegra_utmip_config {
37	u8 hssync_start_delay;
38	u8 elastic_limit;
39	u8 idle_wait_delay;
40	u8 term_range_adj;
41	bool xcvr_setup_use_fuses;
42	u8 xcvr_setup;
43	u8 xcvr_lsfslew;
44	u8 xcvr_lsrslew;
45	u8 xcvr_hsslew;
46	u8 hssquelch_level;
47	u8 hsdiscon_level;
48};
49
50enum tegra_usb_phy_port_speed {
51	TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
52	TEGRA_USB_PHY_PORT_SPEED_LOW,
53	TEGRA_USB_PHY_PORT_SPEED_HIGH,
54};
55
56struct tegra_xtal_freq;
57
58struct tegra_usb_phy {
59	int irq;
60	int instance;
61	const struct tegra_xtal_freq *freq;
62	void __iomem *regs;
63	void __iomem *pad_regs;
64	struct clk *clk;
65	struct clk *pll_u;
66	struct clk *pad_clk;
67	struct regulator *vbus;
68	struct regmap *pmc_regmap;
69	enum usb_dr_mode mode;
70	void *config;
71	const struct tegra_phy_soc_config *soc_config;
72	struct usb_phy *ulpi;
73	struct usb_phy u_phy;
74	bool is_legacy_phy;
75	bool is_ulpi_phy;
76	struct gpio_desc *reset_gpio;
77	struct reset_control *pad_rst;
78	bool wakeup_enabled;
79	bool pad_wakeup;
80	bool powered_on;
81};
82
83#endif /* __TEGRA_USB_PHY_H */