Kamil Debski | 06fb013 | 2014-03-06 12:16:48 +0100 | [diff] [blame] | 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 | |
| 24 | struct samsung_usb2_phy_driver; |
| 25 | struct samsung_usb2_phy_instance; |
| 26 | struct samsung_usb2_phy_config; |
| 27 | |
| 28 | struct samsung_usb2_phy_instance { |
| 29 | const struct samsung_usb2_common_phy *cfg; |
| 30 | struct phy *phy; |
| 31 | struct samsung_usb2_phy_driver *drv; |
| 32 | bool enabled; |
| 33 | }; |
| 34 | |
| 35 | struct samsung_usb2_phy_driver { |
| 36 | const struct samsung_usb2_phy_config *cfg; |
| 37 | struct clk *clk; |
| 38 | struct clk *ref_clk; |
| 39 | unsigned long ref_rate; |
| 40 | u32 ref_reg_val; |
| 41 | struct device *dev; |
| 42 | void __iomem *reg_phy; |
| 43 | struct regmap *reg_pmu; |
| 44 | struct regmap *reg_sys; |
| 45 | spinlock_t lock; |
| 46 | struct samsung_usb2_phy_instance instances[0]; |
| 47 | }; |
| 48 | |
| 49 | struct samsung_usb2_common_phy { |
| 50 | int (*power_on)(struct samsung_usb2_phy_instance *); |
| 51 | int (*power_off)(struct samsung_usb2_phy_instance *); |
| 52 | unsigned int id; |
| 53 | char *label; |
| 54 | }; |
| 55 | |
| 56 | |
| 57 | struct samsung_usb2_phy_config { |
| 58 | const struct samsung_usb2_common_phy *phys; |
| 59 | int (*rate_to_clk)(unsigned long, u32 *); |
| 60 | unsigned int num_phys; |
| 61 | bool has_mode_switch; |
| 62 | }; |
| 63 | |
| 64 | extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config; |
| 65 | extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config; |
Kamil Debski | 64bf2b2 | 2014-03-06 12:16:49 +0100 | [diff] [blame] | 66 | extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config; |
Kamil Debski | 06fb013 | 2014-03-06 12:16:48 +0100 | [diff] [blame] | 67 | #endif |