forked from mirrors/linux
9955a7835b
Deprecate using phy-omap-control driver to power on/off the PHY, and use *syscon* framework to do the same. This handles powering on/off the PHY for the USB2 PHYs used in various TI SoCs. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* omap_usb.h -- omap usb2 phy header file
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*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Author: Kishon Vijay Abraham I <kishon@ti.com>
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __DRIVERS_OMAP_USB2_H
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#define __DRIVERS_OMAP_USB2_H
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#include <linux/io.h>
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#include <linux/usb/otg.h>
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struct usb_dpll_params {
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u16 m;
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u8 n;
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u8 freq:3;
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u8 sd;
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u32 mf;
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};
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enum omap_usb_phy_type {
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TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */
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TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
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TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */
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};
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struct omap_usb {
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struct usb_phy phy;
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struct phy_companion *comparator;
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void __iomem *pll_ctrl_base;
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void __iomem *phy_base;
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struct device *dev;
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struct device *control_dev;
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struct clk *wkupclk;
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struct clk *optclk;
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u8 flags;
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enum omap_usb_phy_type type;
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struct regmap *syscon_phy_power; /* ctrl. reg. acces */
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unsigned int power_reg; /* power reg. index within syscon */
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u32 mask;
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u32 power_on;
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u32 power_off;
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};
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struct usb_phy_data {
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const char *label;
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u8 flags;
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u32 mask;
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u32 power_on;
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u32 power_off;
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};
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/* Driver Flags */
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#define OMAP_USB2_HAS_START_SRP (1 << 0)
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#define OMAP_USB2_HAS_SET_VBUS (1 << 1)
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#define OMAP_USB2_CALIBRATE_FALSE_DISCONNECT (1 << 2)
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#define OMAP_DEV_PHY_PD BIT(0)
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#define OMAP_USB2_PHY_PD BIT(28)
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#define AM437X_USB2_PHY_PD BIT(0)
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#define AM437X_USB2_OTG_PD BIT(1)
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#define AM437X_USB2_OTGVDET_EN BIT(19)
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#define AM437X_USB2_OTGSESSEND_EN BIT(20)
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#define phy_to_omapusb(x) container_of((x), struct omap_usb, phy)
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#if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
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extern int omap_usb2_set_comparator(struct phy_companion *comparator);
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#else
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static inline int omap_usb2_set_comparator(struct phy_companion *comparator)
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{
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return -ENODEV;
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}
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#endif
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static inline u32 omap_usb_readl(void __iomem *addr, unsigned offset)
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{
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return __raw_readl(addr + offset);
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}
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static inline void omap_usb_writel(void __iomem *addr, unsigned offset,
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u32 data)
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{
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__raw_writel(data, addr + offset);
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}
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#endif /* __DRIVERS_OMAP_USB_H */
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