68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* Samsung SoC USB 1.1/2.0 PHY driver
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* Author: Kamil Debski <k.debski@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _PHY_EXYNOS_USB2_H
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#define _PHY_EXYNOS_USB2_H
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#include <linux/clk.h>
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#include <linux/phy/phy.h>
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#include <linux/device.h>
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#include <linux/regmap.h>
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#include <linux/spinlock.h>
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#define KHZ 1000
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#define MHZ (KHZ * KHZ)
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struct samsung_usb2_phy_driver;
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struct samsung_usb2_phy_instance;
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struct samsung_usb2_phy_config;
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struct samsung_usb2_phy_instance {
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const struct samsung_usb2_common_phy *cfg;
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struct phy *phy;
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struct samsung_usb2_phy_driver *drv;
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bool enabled;
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};
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struct samsung_usb2_phy_driver {
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const struct samsung_usb2_phy_config *cfg;
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struct clk *clk;
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struct clk *ref_clk;
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unsigned long ref_rate;
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u32 ref_reg_val;
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struct device *dev;
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void __iomem *reg_phy;
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struct regmap *reg_pmu;
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struct regmap *reg_sys;
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spinlock_t lock;
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struct samsung_usb2_phy_instance instances[0];
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};
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struct samsung_usb2_common_phy {
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int (*power_on)(struct samsung_usb2_phy_instance *);
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int (*power_off)(struct samsung_usb2_phy_instance *);
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unsigned int id;
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char *label;
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};
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struct samsung_usb2_phy_config {
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const struct samsung_usb2_common_phy *phys;
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int (*rate_to_clk)(unsigned long, u32 *);
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unsigned int num_phys;
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bool has_mode_switch;
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};
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extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
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extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
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extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
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#endif
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