1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef _PHY_EXYNOS_USB2_H
13#define _PHY_EXYNOS_USB2_H
14
15#include <linux/clk.h>
16#include <linux/phy/phy.h>
17#include <linux/device.h>
18#include <linux/regmap.h>
19#include <linux/spinlock.h>
20
21#define KHZ 1000
22#define MHZ (KHZ * KHZ)
23
24struct samsung_usb2_phy_driver;
25struct samsung_usb2_phy_instance;
26struct samsung_usb2_phy_config;
27
28struct samsung_usb2_phy_instance {
29	const struct samsung_usb2_common_phy *cfg;
30	struct phy *phy;
31	struct samsung_usb2_phy_driver *drv;
32	int int_cnt;
33	int ext_cnt;
34};
35
36struct samsung_usb2_phy_driver {
37	const struct samsung_usb2_phy_config *cfg;
38	struct clk *clk;
39	struct clk *ref_clk;
40	unsigned long ref_rate;
41	u32 ref_reg_val;
42	struct device *dev;
43	void __iomem *reg_phy;
44	struct regmap *reg_pmu;
45	struct regmap *reg_sys;
46	spinlock_t lock;
47	struct samsung_usb2_phy_instance instances[0];
48};
49
50struct samsung_usb2_common_phy {
51	int (*power_on)(struct samsung_usb2_phy_instance *);
52	int (*power_off)(struct samsung_usb2_phy_instance *);
53	unsigned int id;
54	char *label;
55};
56
57
58struct samsung_usb2_phy_config {
59	const struct samsung_usb2_common_phy *phys;
60	int (*rate_to_clk)(unsigned long, u32 *);
61	unsigned int num_phys;
62	bool has_mode_switch;
63	bool has_refclk_sel;
64};
65
66extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
67extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
68extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
69extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
70extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
71#endif
72