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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * omap_usb.h -- omap usb2 phy header file
4 *
5 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
6 * Author: Kishon Vijay Abraham I <kishon@ti.com>
7 */
8
9#ifndef __DRIVERS_OMAP_USB2_H
10#define __DRIVERS_OMAP_USB2_H
11
12#include <linux/io.h>
13#include <linux/usb/otg.h>
14
15struct usb_dpll_params {
16 u16 m;
17 u8 n;
18 u8 freq:3;
19 u8 sd;
20 u32 mf;
21};
22
23enum omap_usb_phy_type {
24 TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */
25 TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
26 TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */
27};
28
29struct omap_usb {
30 struct usb_phy phy;
31 struct phy_companion *comparator;
32 void __iomem *pll_ctrl_base;
33 void __iomem *phy_base;
34 struct device *dev;
35 struct device *control_dev;
36 struct clk *wkupclk;
37 struct clk *optclk;
38 u8 flags;
39 enum omap_usb_phy_type type;
40 struct regmap *syscon_phy_power; /* ctrl. reg. acces */
41 unsigned int power_reg; /* power reg. index within syscon */
42 u32 mask;
43 u32 power_on;
44 u32 power_off;
45};
46
47struct usb_phy_data {
48 const char *label;
49 u8 flags;
50 u32 mask;
51 u32 power_on;
52 u32 power_off;
53};
54
55/* Driver Flags */
56#define OMAP_USB2_HAS_START_SRP (1 << 0)
57#define OMAP_USB2_HAS_SET_VBUS (1 << 1)
58#define OMAP_USB2_CALIBRATE_FALSE_DISCONNECT (1 << 2)
59
60#define OMAP_DEV_PHY_PD BIT(0)
61#define OMAP_USB2_PHY_PD BIT(28)
62
63#define AM437X_USB2_PHY_PD BIT(0)
64#define AM437X_USB2_OTG_PD BIT(1)
65#define AM437X_USB2_OTGVDET_EN BIT(19)
66#define AM437X_USB2_OTGSESSEND_EN BIT(20)
67
68#define phy_to_omapusb(x) container_of((x), struct omap_usb, phy)
69
70#if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
71extern int omap_usb2_set_comparator(struct phy_companion *comparator);
72#else
73static inline int omap_usb2_set_comparator(struct phy_companion *comparator)
74{
75 return -ENODEV;
76}
77#endif
78
79static inline u32 omap_usb_readl(void __iomem *addr, unsigned offset)
80{
81 return __raw_readl(addr + offset);
82}
83
84static inline void omap_usb_writel(void __iomem *addr, unsigned offset,
85 u32 data)
86{
87 __raw_writel(data, addr + offset);
88}
89
90#endif /* __DRIVERS_OMAP_USB_H */