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1 /*
2  * omap_control_usb.h - Header file for the USB part of control module.
3  *
4  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * Author: Kishon Vijay Abraham I <kishon@ti.com>
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  */
18
19 #ifndef __OMAP_CONTROL_USB_H__
20 #define __OMAP_CONTROL_USB_H__
21
22 enum omap_control_usb_type {
23         OMAP_CTRL_TYPE_OTGHS = 1,       /* Mailbox OTGHS_CONTROL */
24         OMAP_CTRL_TYPE_USB2,    /* USB2_PHY, power down in CONTROL_DEV_CONF */
25         OMAP_CTRL_TYPE_PIPE3,   /* PIPE3 PHY, DPLL & seperate Rx/Tx power */
26         OMAP_CTRL_TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
27 };
28
29 struct omap_control_usb {
30         struct device *dev;
31
32         u32 __iomem *otghs_control;
33         u32 __iomem *power;
34         u32 __iomem *power_aux;
35
36         struct clk *sys_clk;
37
38         enum omap_control_usb_type type;
39 };
40
41 enum omap_control_usb_mode {
42         USB_MODE_UNDEFINED = 0,
43         USB_MODE_HOST,
44         USB_MODE_DEVICE,
45         USB_MODE_DISCONNECT,
46 };
47
48 #define OMAP_CTRL_DEV_PHY_PD            BIT(0)
49
50 #define OMAP_CTRL_DEV_AVALID            BIT(0)
51 #define OMAP_CTRL_DEV_BVALID            BIT(1)
52 #define OMAP_CTRL_DEV_VBUSVALID         BIT(2)
53 #define OMAP_CTRL_DEV_SESSEND           BIT(3)
54 #define OMAP_CTRL_DEV_IDDIG             BIT(4)
55
56 #define OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK       0x003FC000
57 #define OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT      0xE
58
59 #define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK      0xFFC00000
60 #define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT     0x16
61
62 #define OMAP_CTRL_USB3_PHY_TX_RX_POWERON        0x3
63 #define OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF       0x0
64
65 #define OMAP_CTRL_USB2_PHY_PD           BIT(28)
66
67 #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB)
68 extern void omap_control_usb_phy_power(struct device *dev, int on);
69 extern void omap_control_usb_set_mode(struct device *dev,
70         enum omap_control_usb_mode mode);
71 #else
72
73 static inline void omap_control_usb_phy_power(struct device *dev, int on)
74 {
75 }
76
77 static inline void omap_control_usb_set_mode(struct device *dev,
78         enum omap_control_usb_mode mode)
79 {
80 }
81 #endif
82
83 #endif  /* __OMAP_CONTROL_USB_H__ */