drivers/usb/phy/phy-samsung-usb.h - kernel/lockdown - Git at Google

 /* linux/drivers/usb/phy/phy-samsung-usb.h
  *
  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
  *              http://www.samsung.com
  *
  * Samsung USB-PHY transceiver; talks to S3C HS OTG controller, EHCI-S5P and
  * OHCI-EXYNOS controllers.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #include <linux/usb/phy.h>

 /* Register definitions */

 #define SAMSUNG_PHYPWR				(0x00)

 #define PHYPWR_NORMAL_MASK			(0x19 << 0)
 #define PHYPWR_OTG_DISABLE			(0x1 << 4)
 #define PHYPWR_ANALOG_POWERDOWN			(0x1 << 3)
 #define PHYPWR_FORCE_SUSPEND			(0x1 << 1)
 /* For Exynos4 */
 #define PHYPWR_NORMAL_MASK_PHY0			(0x39 << 0)
 #define PHYPWR_SLEEP_PHY0			(0x1 << 5)

 #define SAMSUNG_PHYCLK				(0x04)

 #define PHYCLK_MODE_USB11			(0x1 << 6)
 #define PHYCLK_EXT_OSC				(0x1 << 5)
 #define PHYCLK_COMMON_ON_N			(0x1 << 4)
 #define PHYCLK_ID_PULL				(0x1 << 2)
 #define PHYCLK_CLKSEL_MASK			(0x3 << 0)
 #define PHYCLK_CLKSEL_48M			(0x0 << 0)
 #define PHYCLK_CLKSEL_12M			(0x2 << 0)
 #define PHYCLK_CLKSEL_24M			(0x3 << 0)

 #define SAMSUNG_RSTCON				(0x08)

 #define RSTCON_PHYLINK_SWRST			(0x1 << 2)
 #define RSTCON_HLINK_SWRST			(0x1 << 1)
 #define RSTCON_SWRST				(0x1 << 0)

 /* EXYNOS4X12 */
 #define EXYNOS4X12_PHY_HSIC_CTRL0		(0x04)
 #define EXYNOS4X12_PHY_HSIC_CTRL1		(0x08)

 #define PHYPWR_NORMAL_MASK_HSIC1		(0x7 << 12)
 #define PHYPWR_NORMAL_MASK_HSIC0		(0x7 << 9)
 #define PHYPWR_NORMAL_MASK_PHY1			(0x7 << 6)

 #define RSTCON_HOSTPHY_SWRST			(0xf << 3)

 /* EXYNOS5 */
 #define EXYNOS5_PHY_HOST_CTRL0			(0x00)

 #define HOST_CTRL0_PHYSWRSTALL			(0x1 << 31)

 #define HOST_CTRL0_REFCLKSEL_MASK		(0x3 << 19)
 #define HOST_CTRL0_REFCLKSEL_XTAL		(0x0 << 19)
 #define HOST_CTRL0_REFCLKSEL_EXTL		(0x1 << 19)
 #define HOST_CTRL0_REFCLKSEL_CLKCORE		(0x2 << 19)

 #define HOST_CTRL0_FSEL_MASK			(0x7 << 16)
 #define HOST_CTRL0_FSEL(_x)			((_x) << 16)

 #define FSEL_CLKSEL_50M				(0x7)
 #define FSEL_CLKSEL_24M				(0x5)
 #define FSEL_CLKSEL_20M				(0x4)
 #define FSEL_CLKSEL_19200K			(0x3)
 #define FSEL_CLKSEL_12M				(0x2)
 #define FSEL_CLKSEL_10M				(0x1)
 #define FSEL_CLKSEL_9600K			(0x0)

 #define HOST_CTRL0_TESTBURNIN			(0x1 << 11)
 #define HOST_CTRL0_RETENABLE			(0x1 << 10)
 #define HOST_CTRL0_COMMONON_N			(0x1 << 9)
 #define HOST_CTRL0_SIDDQ			(0x1 << 6)
 #define HOST_CTRL0_FORCESLEEP			(0x1 << 5)
 #define HOST_CTRL0_FORCESUSPEND			(0x1 << 4)
 #define HOST_CTRL0_WORDINTERFACE		(0x1 << 3)
 #define HOST_CTRL0_UTMISWRST			(0x1 << 2)
 #define HOST_CTRL0_LINKSWRST			(0x1 << 1)
 #define HOST_CTRL0_PHYSWRST			(0x1 << 0)

 #define EXYNOS5_PHY_HOST_TUNE0			(0x04)

 #define EXYNOS5_PHY_HSIC_CTRL1			(0x10)

 #define EXYNOS5_PHY_HSIC_TUNE1			(0x14)

 #define EXYNOS5_PHY_HSIC_CTRL2			(0x20)

 #define EXYNOS5_PHY_HSIC_TUNE2			(0x24)

 #define HSIC_CTRL_REFCLKSEL_MASK		(0x3 << 23)
 #define HSIC_CTRL_REFCLKSEL			(0x2 << 23)

 #define HSIC_CTRL_REFCLKDIV_MASK		(0x7f << 16)
 #define HSIC_CTRL_REFCLKDIV(_x)			((_x) << 16)
 #define HSIC_CTRL_REFCLKDIV_12			(0x24 << 16)
 #define HSIC_CTRL_REFCLKDIV_15			(0x1c << 16)
 #define HSIC_CTRL_REFCLKDIV_16			(0x1a << 16)
 #define HSIC_CTRL_REFCLKDIV_19_2		(0x15 << 16)
 #define HSIC_CTRL_REFCLKDIV_20			(0x14 << 16)

 #define HSIC_CTRL_SIDDQ				(0x1 << 6)
 #define HSIC_CTRL_FORCESLEEP			(0x1 << 5)
 #define HSIC_CTRL_FORCESUSPEND			(0x1 << 4)
 #define HSIC_CTRL_WORDINTERFACE			(0x1 << 3)
 #define HSIC_CTRL_UTMISWRST			(0x1 << 2)
 #define HSIC_CTRL_PHYSWRST			(0x1 << 0)

 #define EXYNOS5_PHY_HOST_EHCICTRL		(0x30)

 #define HOST_EHCICTRL_ENAINCRXALIGN		(0x1 << 29)
 #define HOST_EHCICTRL_ENAINCR4			(0x1 << 28)
 #define HOST_EHCICTRL_ENAINCR8			(0x1 << 27)
 #define HOST_EHCICTRL_ENAINCR16			(0x1 << 26)

 #define EXYNOS5_PHY_HOST_OHCICTRL		(0x34)

 #define HOST_OHCICTRL_SUSPLGCY			(0x1 << 3)
 #define HOST_OHCICTRL_APPSTARTCLK		(0x1 << 2)
 #define HOST_OHCICTRL_CNTSEL			(0x1 << 1)
 #define HOST_OHCICTRL_CLKCKTRST			(0x1 << 0)

 #define EXYNOS5_PHY_OTG_SYS			(0x38)

 #define OTG_SYS_PHYLINK_SWRESET			(0x1 << 14)
 #define OTG_SYS_LINKSWRST_UOTG			(0x1 << 13)
 #define OTG_SYS_PHY0_SWRST			(0x1 << 12)

 #define OTG_SYS_REFCLKSEL_MASK			(0x3 << 9)
 #define OTG_SYS_REFCLKSEL_XTAL			(0x0 << 9)
 #define OTG_SYS_REFCLKSEL_EXTL			(0x1 << 9)
 #define OTG_SYS_REFCLKSEL_CLKCORE		(0x2 << 9)

 #define OTG_SYS_IDPULLUP_UOTG			(0x1 << 8)
 #define OTG_SYS_COMMON_ON			(0x1 << 7)

 #define OTG_SYS_FSEL_MASK			(0x7 << 4)
 #define OTG_SYS_FSEL(_x)			((_x) << 4)

 #define OTG_SYS_FORCESLEEP			(0x1 << 3)
 #define OTG_SYS_OTGDISABLE			(0x1 << 2)
 #define OTG_SYS_SIDDQ_UOTG			(0x1 << 1)
 #define OTG_SYS_FORCESUSPEND			(0x1 << 0)

 #define EXYNOS5_PHY_OTG_TUNE			(0x40)

 /* EXYNOS5: USB 3.0 DRD */
 #define EXYNOS5_DRD_LINKSYSTEM			(0x04)

 #define LINKSYSTEM_FLADJ_MASK			(0x3f << 1)
 #define LINKSYSTEM_FLADJ(_x)			((_x) << 1)
 #define LINKSYSTEM_XHCI_VERSION_CONTROL		(0x1 << 27)

 #define EXYNOS5_DRD_PHYUTMI			(0x08)

 #define PHYUTMI_OTGDISABLE			(0x1 << 6)
 #define PHYUTMI_FORCESUSPEND			(0x1 << 1)
 #define PHYUTMI_FORCESLEEP			(0x1 << 0)

 #define EXYNOS5_DRD_PHYPIPE			(0x0c)

 #define EXYNOS5_DRD_PHYCLKRST			(0x10)

 #define PHYCLKRST_SSC_REFCLKSEL_MASK		(0xff << 23)
 #define PHYCLKRST_SSC_REFCLKSEL(_x)		((_x) << 23)

 #define PHYCLKRST_SSC_RANGE_MASK		(0x03 << 21)
 #define PHYCLKRST_SSC_RANGE(_x)			((_x) << 21)

 #define PHYCLKRST_SSC_EN			(0x1 << 20)
 #define PHYCLKRST_REF_SSP_EN			(0x1 << 19)
 #define PHYCLKRST_REF_CLKDIV2			(0x1 << 18)

 #define PHYCLKRST_MPLL_MULTIPLIER_MASK		(0x7f << 11)
 #define PHYCLKRST_MPLL_MULTIPLIER_100MHZ_REF	(0x19 << 11)
 #define PHYCLKRST_MPLL_MULTIPLIER_50M_REF	(0x02 << 11)
 #define PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF	(0x68 << 11)
 #define PHYCLKRST_MPLL_MULTIPLIER_20MHZ_REF	(0x7d << 11)
 #define PHYCLKRST_MPLL_MULTIPLIER_19200KHZ_REF	(0x02 << 11)

 #define PHYCLKRST_FSEL_MASK			(0x3f << 5)
 #define PHYCLKRST_FSEL(_x)			((_x) << 5)
 #define PHYCLKRST_FSEL_PAD_100MHZ		(0x27 << 5)
 #define PHYCLKRST_FSEL_PAD_24MHZ		(0x2a << 5)
 #define PHYCLKRST_FSEL_PAD_20MHZ		(0x31 << 5)
 #define PHYCLKRST_FSEL_PAD_19_2MHZ		(0x38 << 5)

 #define PHYCLKRST_RETENABLEN			(0x1 << 4)

 #define PHYCLKRST_REFCLKSEL_MASK		(0x03 << 2)
 #define PHYCLKRST_REFCLKSEL_PAD_REFCLK		(0x2 << 2)
 #define PHYCLKRST_REFCLKSEL_EXT_REFCLK		(0x3 << 2)

 #define PHYCLKRST_PORTRESET			(0x1 << 1)
 #define PHYCLKRST_COMMONONN			(0x1 << 0)

 #define EXYNOS5_DRD_PHYREG0			(0x14)
 #define EXYNOS5_DRD_PHYREG1			(0x18)

 #define EXYNOS5_DRD_PHYPARAM0			(0x1c)

 #define PHYPARAM0_REF_USE_PAD			(0x1 << 31)
 #define PHYPARAM0_REF_LOSLEVEL_MASK		(0x1f << 26)
 #define PHYPARAM0_REF_LOSLEVEL			(0x9 << 26)

 #define EXYNOS5_DRD_PHYPARAM1			(0x20)

 #define PHYPARAM1_PCS_TXDEEMPH_MASK		(0x1f << 0)
 #define PHYPARAM1_PCS_TXDEEMPH			(0x1c)

 #define EXYNOS5_DRD_PHYTERM			(0x24)

 #define EXYNOS5_DRD_PHYTEST			(0x28)

 #define PHYTEST_POWERDOWN_SSP			(0x1 << 3)
 #define PHYTEST_POWERDOWN_HSP			(0x1 << 2)

 #define EXYNOS5_DRD_PHYADP			(0x2c)

 #define EXYNOS5_DRD_PHYBATCHG			(0x30)

 #define PHYBATCHG_UTMI_CLKSEL			(0x1 << 2)

 #define EXYNOS5_DRD_PHYRESUME			(0x34)
 #define EXYNOS5_DRD_LINKPORT			(0x44)

 #ifndef MHZ
 #define MHZ (1000*1000)
 #endif

 #ifndef KHZ
 #define KHZ (1000)
 #endif

 #define EXYNOS_USBHOST_PHY_CTRL_OFFSET		(0x4)
 #define S3C64XX_USBPHY_ENABLE			(0x1 << 16)
 #define EXYNOS_USBPHY_ENABLE			(0x1 << 0)
 #define EXYNOS_USB20PHY_CFG_HOST_LINK		(0x1 << 0)

 enum samsung_cpu_type {
 	TYPE_S3C64XX,
 	TYPE_EXYNOS4210,
 	TYPE_EXYNOS4X12,
 	TYPE_EXYNOS5250,
 };

 struct samsung_usbphy;

 /*
  * struct samsung_usbphy_drvdata - driver data for various SoC variants
  * @cpu_type: machine identifier
  * @devphy_en_mask: device phy enable mask for PHY CONTROL register
  * @hostphy_en_mask: host phy enable mask for PHY CONTROL register
  * @devphy_reg_offset: offset to DEVICE PHY CONTROL register from
  *		       mapped address of system controller.
  * @hostphy_reg_offset: offset to HOST PHY CONTROL register from
  *		       mapped address of system controller.
  *
  *	Here we have a separate mask for device type phy.
  *	Having different masks for host and device type phy helps
  *	in setting independent masks in case of SoCs like S5PV210,
  *	in which PHY0 and PHY1 enable bits belong to same register
  *	placed at position 0 and 1 respectively.
  *	Although for newer SoCs like exynos these bits belong to
  *	different registers altogether placed at position 0.
  */
 struct samsung_usbphy_drvdata {
 	int cpu_type;
 	int devphy_en_mask;
 	int hostphy_en_mask;
 	u32 devphy_reg_offset;
 	u32 hostphy_reg_offset;
 	int (*rate_to_clksel)(struct samsung_usbphy *, unsigned long);
 	void (*set_isolation)(struct samsung_usbphy *, bool);
 	void (*phy_enable)(struct samsung_usbphy *);
 	void (*phy_disable)(struct samsung_usbphy *);
 };

 /*
  * struct samsung_usbphy - transceiver driver state
  * @phy: transceiver structure
  * @plat: platform data
  * @dev: The parent device supplied to the probe function
  * @clk: usb phy clock
  * @regs: usb phy controller registers memory base
  * @pmuregs: USB device PHY_CONTROL register memory base
  * @sysreg: USB2.0 PHY_CFG register memory base
  * @ref_clk_freq: reference clock frequency selection
  * @drv_data: driver data available for different SoCs
  * @phy_type: Samsung SoCs specific phy types:	#HOST
  *						#DEVICE
  * @phy_usage: usage count for phy
  * @lock: lock for phy operations
  */
 struct samsung_usbphy {
 	struct usb_phy	phy;
 	struct samsung_usbphy_data *plat;
 	struct device	*dev;
 	struct clk	*clk;
 	void __iomem	*regs;
 	void __iomem	*pmuregs;
 	void __iomem	*sysreg;
 	int		ref_clk_freq;
 	const struct samsung_usbphy_drvdata *drv_data;
 	enum samsung_usb_phy_type phy_type;
 	atomic_t	phy_usage;
 	spinlock_t	lock;
 };

 #define phy_to_sphy(x)		container_of((x), struct samsung_usbphy, phy)

 static const struct of_device_id samsung_usbphy_dt_match[];

 static inline const struct samsung_usbphy_drvdata
 *samsung_usbphy_get_driver_data(struct platform_device *pdev)
 {
 	if (pdev->dev.of_node) {
 		const struct of_device_id *match;
 		match = of_match_node(samsung_usbphy_dt_match,
 							pdev->dev.of_node);
 		return match->data;
 	}

 	return (struct samsung_usbphy_drvdata *)
 				platform_get_device_id(pdev)->driver_data;
 }

 extern int samsung_usbphy_parse_dt(struct samsung_usbphy *sphy);
 extern void samsung_usbphy_set_isolation_4210(struct samsung_usbphy *sphy,
 								bool on);
 extern void samsung_usbphy_cfg_sel(struct samsung_usbphy *sphy);
 extern int samsung_usbphy_set_type(struct usb_phy *phy,
 					enum samsung_usb_phy_type phy_type);
 extern int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy);
 extern int samsung_usbphy_rate_to_clksel_64xx(struct samsung_usbphy *sphy,
 							unsigned long rate);
 extern int samsung_usbphy_rate_to_clksel_4x12(struct samsung_usbphy *sphy,
 							unsigned long rate);
	/* linux/drivers/usb/phy/phy-samsung-usb.h
	*
	* Copyright (c) 2012 Samsung Electronics Co., Ltd.
	* http://www.samsung.com
	*
	* Samsung USB-PHY transceiver; talks to S3C HS OTG controller, EHCI-S5P and
	* OHCI-EXYNOS controllers.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#include <linux/usb/phy.h>

	/* Register definitions */

	#define SAMSUNG_PHYPWR (0x00)

	#define PHYPWR_NORMAL_MASK (0x19 << 0)
	#define PHYPWR_OTG_DISABLE (0x1 << 4)
	#define PHYPWR_ANALOG_POWERDOWN (0x1 << 3)
	#define PHYPWR_FORCE_SUSPEND (0x1 << 1)
	/* For Exynos4 */
	#define PHYPWR_NORMAL_MASK_PHY0 (0x39 << 0)
	#define PHYPWR_SLEEP_PHY0 (0x1 << 5)

	#define SAMSUNG_PHYCLK (0x04)

	#define PHYCLK_MODE_USB11 (0x1 << 6)
	#define PHYCLK_EXT_OSC (0x1 << 5)
	#define PHYCLK_COMMON_ON_N (0x1 << 4)
	#define PHYCLK_ID_PULL (0x1 << 2)
	#define PHYCLK_CLKSEL_MASK (0x3 << 0)
	#define PHYCLK_CLKSEL_48M (0x0 << 0)
	#define PHYCLK_CLKSEL_12M (0x2 << 0)
	#define PHYCLK_CLKSEL_24M (0x3 << 0)

	#define SAMSUNG_RSTCON (0x08)

	#define RSTCON_PHYLINK_SWRST (0x1 << 2)
	#define RSTCON_HLINK_SWRST (0x1 << 1)
	#define RSTCON_SWRST (0x1 << 0)

	/* EXYNOS4X12 */
	#define EXYNOS4X12_PHY_HSIC_CTRL0 (0x04)
	#define EXYNOS4X12_PHY_HSIC_CTRL1 (0x08)

	#define PHYPWR_NORMAL_MASK_HSIC1 (0x7 << 12)
	#define PHYPWR_NORMAL_MASK_HSIC0 (0x7 << 9)
	#define PHYPWR_NORMAL_MASK_PHY1 (0x7 << 6)

	#define RSTCON_HOSTPHY_SWRST (0xf << 3)

	/* EXYNOS5 */
	#define EXYNOS5_PHY_HOST_CTRL0 (0x00)

	#define HOST_CTRL0_PHYSWRSTALL (0x1 << 31)

	#define HOST_CTRL0_REFCLKSEL_MASK (0x3 << 19)
	#define HOST_CTRL0_REFCLKSEL_XTAL (0x0 << 19)
	#define HOST_CTRL0_REFCLKSEL_EXTL (0x1 << 19)
	#define HOST_CTRL0_REFCLKSEL_CLKCORE (0x2 << 19)

	#define HOST_CTRL0_FSEL_MASK (0x7 << 16)
	#define HOST_CTRL0_FSEL(_x) ((_x) << 16)

	#define FSEL_CLKSEL_50M (0x7)
	#define FSEL_CLKSEL_24M (0x5)
	#define FSEL_CLKSEL_20M (0x4)
	#define FSEL_CLKSEL_19200K (0x3)
	#define FSEL_CLKSEL_12M (0x2)
	#define FSEL_CLKSEL_10M (0x1)
	#define FSEL_CLKSEL_9600K (0x0)

	#define HOST_CTRL0_TESTBURNIN (0x1 << 11)
	#define HOST_CTRL0_RETENABLE (0x1 << 10)
	#define HOST_CTRL0_COMMONON_N (0x1 << 9)
	#define HOST_CTRL0_SIDDQ (0x1 << 6)
	#define HOST_CTRL0_FORCESLEEP (0x1 << 5)
	#define HOST_CTRL0_FORCESUSPEND (0x1 << 4)
	#define HOST_CTRL0_WORDINTERFACE (0x1 << 3)
	#define HOST_CTRL0_UTMISWRST (0x1 << 2)
	#define HOST_CTRL0_LINKSWRST (0x1 << 1)
	#define HOST_CTRL0_PHYSWRST (0x1 << 0)

	#define EXYNOS5_PHY_HOST_TUNE0 (0x04)

	#define EXYNOS5_PHY_HSIC_CTRL1 (0x10)

	#define EXYNOS5_PHY_HSIC_TUNE1 (0x14)

	#define EXYNOS5_PHY_HSIC_CTRL2 (0x20)

	#define EXYNOS5_PHY_HSIC_TUNE2 (0x24)

	#define HSIC_CTRL_REFCLKSEL_MASK (0x3 << 23)
	#define HSIC_CTRL_REFCLKSEL (0x2 << 23)

	#define HSIC_CTRL_REFCLKDIV_MASK (0x7f << 16)
	#define HSIC_CTRL_REFCLKDIV(_x) ((_x) << 16)
	#define HSIC_CTRL_REFCLKDIV_12 (0x24 << 16)
	#define HSIC_CTRL_REFCLKDIV_15 (0x1c << 16)
	#define HSIC_CTRL_REFCLKDIV_16 (0x1a << 16)
	#define HSIC_CTRL_REFCLKDIV_19_2 (0x15 << 16)
	#define HSIC_CTRL_REFCLKDIV_20 (0x14 << 16)

	#define HSIC_CTRL_SIDDQ (0x1 << 6)
	#define HSIC_CTRL_FORCESLEEP (0x1 << 5)
	#define HSIC_CTRL_FORCESUSPEND (0x1 << 4)
	#define HSIC_CTRL_WORDINTERFACE (0x1 << 3)
	#define HSIC_CTRL_UTMISWRST (0x1 << 2)
	#define HSIC_CTRL_PHYSWRST (0x1 << 0)

	#define EXYNOS5_PHY_HOST_EHCICTRL (0x30)

	#define HOST_EHCICTRL_ENAINCRXALIGN (0x1 << 29)
	#define HOST_EHCICTRL_ENAINCR4 (0x1 << 28)
	#define HOST_EHCICTRL_ENAINCR8 (0x1 << 27)
	#define HOST_EHCICTRL_ENAINCR16 (0x1 << 26)

	#define EXYNOS5_PHY_HOST_OHCICTRL (0x34)

	#define HOST_OHCICTRL_SUSPLGCY (0x1 << 3)
	#define HOST_OHCICTRL_APPSTARTCLK (0x1 << 2)
	#define HOST_OHCICTRL_CNTSEL (0x1 << 1)
	#define HOST_OHCICTRL_CLKCKTRST (0x1 << 0)

	#define EXYNOS5_PHY_OTG_SYS (0x38)

	#define OTG_SYS_PHYLINK_SWRESET (0x1 << 14)
	#define OTG_SYS_LINKSWRST_UOTG (0x1 << 13)
	#define OTG_SYS_PHY0_SWRST (0x1 << 12)

	#define OTG_SYS_REFCLKSEL_MASK (0x3 << 9)
	#define OTG_SYS_REFCLKSEL_XTAL (0x0 << 9)
	#define OTG_SYS_REFCLKSEL_EXTL (0x1 << 9)
	#define OTG_SYS_REFCLKSEL_CLKCORE (0x2 << 9)

	#define OTG_SYS_IDPULLUP_UOTG (0x1 << 8)
	#define OTG_SYS_COMMON_ON (0x1 << 7)

	#define OTG_SYS_FSEL_MASK (0x7 << 4)
	#define OTG_SYS_FSEL(_x) ((_x) << 4)

	#define OTG_SYS_FORCESLEEP (0x1 << 3)
	#define OTG_SYS_OTGDISABLE (0x1 << 2)
	#define OTG_SYS_SIDDQ_UOTG (0x1 << 1)
	#define OTG_SYS_FORCESUSPEND (0x1 << 0)

	#define EXYNOS5_PHY_OTG_TUNE (0x40)

	/* EXYNOS5: USB 3.0 DRD */
	#define EXYNOS5_DRD_LINKSYSTEM (0x04)

	#define LINKSYSTEM_FLADJ_MASK (0x3f << 1)
	#define LINKSYSTEM_FLADJ(_x) ((_x) << 1)
	#define LINKSYSTEM_XHCI_VERSION_CONTROL (0x1 << 27)

	#define EXYNOS5_DRD_PHYUTMI (0x08)

	#define PHYUTMI_OTGDISABLE (0x1 << 6)
	#define PHYUTMI_FORCESUSPEND (0x1 << 1)
	#define PHYUTMI_FORCESLEEP (0x1 << 0)

	#define EXYNOS5_DRD_PHYPIPE (0x0c)

	#define EXYNOS5_DRD_PHYCLKRST (0x10)

	#define PHYCLKRST_SSC_REFCLKSEL_MASK (0xff << 23)
	#define PHYCLKRST_SSC_REFCLKSEL(_x) ((_x) << 23)

	#define PHYCLKRST_SSC_RANGE_MASK (0x03 << 21)
	#define PHYCLKRST_SSC_RANGE(_x) ((_x) << 21)

	#define PHYCLKRST_SSC_EN (0x1 << 20)
	#define PHYCLKRST_REF_SSP_EN (0x1 << 19)
	#define PHYCLKRST_REF_CLKDIV2 (0x1 << 18)

	#define PHYCLKRST_MPLL_MULTIPLIER_MASK (0x7f << 11)
	#define PHYCLKRST_MPLL_MULTIPLIER_100MHZ_REF (0x19 << 11)
	#define PHYCLKRST_MPLL_MULTIPLIER_50M_REF (0x02 << 11)
	#define PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF (0x68 << 11)
	#define PHYCLKRST_MPLL_MULTIPLIER_20MHZ_REF (0x7d << 11)
	#define PHYCLKRST_MPLL_MULTIPLIER_19200KHZ_REF (0x02 << 11)

	#define PHYCLKRST_FSEL_MASK (0x3f << 5)
	#define PHYCLKRST_FSEL(_x) ((_x) << 5)
	#define PHYCLKRST_FSEL_PAD_100MHZ (0x27 << 5)
	#define PHYCLKRST_FSEL_PAD_24MHZ (0x2a << 5)
	#define PHYCLKRST_FSEL_PAD_20MHZ (0x31 << 5)
	#define PHYCLKRST_FSEL_PAD_19_2MHZ (0x38 << 5)

	#define PHYCLKRST_RETENABLEN (0x1 << 4)

	#define PHYCLKRST_REFCLKSEL_MASK (0x03 << 2)
	#define PHYCLKRST_REFCLKSEL_PAD_REFCLK (0x2 << 2)
	#define PHYCLKRST_REFCLKSEL_EXT_REFCLK (0x3 << 2)

	#define PHYCLKRST_PORTRESET (0x1 << 1)
	#define PHYCLKRST_COMMONONN (0x1 << 0)

	#define EXYNOS5_DRD_PHYREG0 (0x14)
	#define EXYNOS5_DRD_PHYREG1 (0x18)

	#define EXYNOS5_DRD_PHYPARAM0 (0x1c)

	#define PHYPARAM0_REF_USE_PAD (0x1 << 31)
	#define PHYPARAM0_REF_LOSLEVEL_MASK (0x1f << 26)
	#define PHYPARAM0_REF_LOSLEVEL (0x9 << 26)

	#define EXYNOS5_DRD_PHYPARAM1 (0x20)

	#define PHYPARAM1_PCS_TXDEEMPH_MASK (0x1f << 0)
	#define PHYPARAM1_PCS_TXDEEMPH (0x1c)

	#define EXYNOS5_DRD_PHYTERM (0x24)

	#define EXYNOS5_DRD_PHYTEST (0x28)

	#define PHYTEST_POWERDOWN_SSP (0x1 << 3)
	#define PHYTEST_POWERDOWN_HSP (0x1 << 2)

	#define EXYNOS5_DRD_PHYADP (0x2c)

	#define EXYNOS5_DRD_PHYBATCHG (0x30)

	#define PHYBATCHG_UTMI_CLKSEL (0x1 << 2)

	#define EXYNOS5_DRD_PHYRESUME (0x34)
	#define EXYNOS5_DRD_LINKPORT (0x44)

	#ifndef MHZ
	#define MHZ (1000*1000)
	#endif

	#ifndef KHZ
	#define KHZ (1000)
	#endif

	#define EXYNOS_USBHOST_PHY_CTRL_OFFSET (0x4)
	#define S3C64XX_USBPHY_ENABLE (0x1 << 16)
	#define EXYNOS_USBPHY_ENABLE (0x1 << 0)
	#define EXYNOS_USB20PHY_CFG_HOST_LINK (0x1 << 0)

	enum samsung_cpu_type {
	TYPE_S3C64XX,
	TYPE_EXYNOS4210,
	TYPE_EXYNOS4X12,
	TYPE_EXYNOS5250,
	};

	struct samsung_usbphy;

	/*
	* struct samsung_usbphy_drvdata - driver data for various SoC variants
	* @cpu_type: machine identifier
	* @devphy_en_mask: device phy enable mask for PHY CONTROL register
	* @hostphy_en_mask: host phy enable mask for PHY CONTROL register
	* @devphy_reg_offset: offset to DEVICE PHY CONTROL register from
	* mapped address of system controller.
	* @hostphy_reg_offset: offset to HOST PHY CONTROL register from
	* mapped address of system controller.
	*
	* Here we have a separate mask for device type phy.
	* Having different masks for host and device type phy helps
	* in setting independent masks in case of SoCs like S5PV210,
	* in which PHY0 and PHY1 enable bits belong to same register
	* placed at position 0 and 1 respectively.
	* Although for newer SoCs like exynos these bits belong to
	* different registers altogether placed at position 0.
	*/
	struct samsung_usbphy_drvdata {
	int cpu_type;
	int devphy_en_mask;
	int hostphy_en_mask;
	u32 devphy_reg_offset;
	u32 hostphy_reg_offset;
	int (rate_to_clksel)(struct samsung_usbphy , unsigned long);
	void (set_isolation)(struct samsung_usbphy , bool);
	void (phy_enable)(struct samsung_usbphy );
	void (phy_disable)(struct samsung_usbphy );
	};

	/*
	* struct samsung_usbphy - transceiver driver state
	* @phy: transceiver structure
	* @plat: platform data
	* @dev: The parent device supplied to the probe function
	* @clk: usb phy clock
	* @regs: usb phy controller registers memory base
	* @pmuregs: USB device PHY_CONTROL register memory base
	* @sysreg: USB2.0 PHY_CFG register memory base
	* @ref_clk_freq: reference clock frequency selection
	* @drv_data: driver data available for different SoCs
	* @phy_type: Samsung SoCs specific phy types: #HOST
	* #DEVICE
	* @phy_usage: usage count for phy
	* @lock: lock for phy operations
	*/
	struct samsung_usbphy {
	struct usb_phy phy;
	struct samsung_usbphy_data *plat;
	struct device *dev;
	struct clk *clk;
	void __iomem *regs;
	void __iomem *pmuregs;
	void __iomem *sysreg;
	int ref_clk_freq;
	const struct samsung_usbphy_drvdata *drv_data;
	enum samsung_usb_phy_type phy_type;
	atomic_t phy_usage;
	spinlock_t lock;
	};

	#define phy_to_sphy(x) container_of((x), struct samsung_usbphy, phy)

	static const struct of_device_id samsung_usbphy_dt_match[];

	static inline const struct samsung_usbphy_drvdata
	samsung_usbphy_get_driver_data(struct platform_device pdev)
	{
	if (pdev->dev.of_node) {
	const struct of_device_id *match;
	match = of_match_node(samsung_usbphy_dt_match,
	pdev->dev.of_node);
	return match->data;
	}

	return (struct samsung_usbphy_drvdata *)
	platform_get_device_id(pdev)->driver_data;
	}

	extern int samsung_usbphy_parse_dt(struct samsung_usbphy *sphy);
	extern void samsung_usbphy_set_isolation_4210(struct samsung_usbphy *sphy,
	bool on);
	extern void samsung_usbphy_cfg_sel(struct samsung_usbphy *sphy);
	extern int samsung_usbphy_set_type(struct usb_phy *phy,
	enum samsung_usb_phy_type phy_type);
	extern int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy);
	extern int samsung_usbphy_rate_to_clksel_64xx(struct samsung_usbphy *sphy,
	unsigned long rate);
	extern int samsung_usbphy_rate_to_clksel_4x12(struct samsung_usbphy *sphy,
	unsigned long rate);