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57f6ce072e
Added a driver for usb3 phy that handles the interaction between usb phy device and dwc3 controller. This also includes device tree support for usb3 phy driver and the documentation with device tree binding information is updated. Currently writing to control module register is taken care in this driver which will be removed once the control module driver is in place. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
67 lines
1.7 KiB
C
67 lines
1.7 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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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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struct device *dev;
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struct device *control_dev;
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struct clk *wkupclk;
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struct clk *sys_clk;
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struct clk *optclk;
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u8 is_suspended:1;
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};
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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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