root/include/linux/platform_data/usb-davinci.h

/*
 * USB related definitions
 *
 * Copyright (C) 2009 MontaVista Software, Inc. <source@mvista.com>
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

#ifndef __ASM_ARCH_USB_H
#define __ASM_ARCH_USB_H

/* DA8xx CFGCHIP2 (USB 2.0 PHY Control) register bits */
#define CFGCHIP2_PHYCLKGD       (1 << 17)
#define CFGCHIP2_VBUSSENSE      (1 << 16)
#define CFGCHIP2_RESET          (1 << 15)
#define CFGCHIP2_OTGMODE        (3 << 13)
#define CFGCHIP2_NO_OVERRIDE    (0 << 13)
#define CFGCHIP2_FORCE_HOST     (1 << 13)
#define CFGCHIP2_FORCE_DEVICE   (2 << 13)
#define CFGCHIP2_FORCE_HOST_VBUS_LOW (3 << 13)
#define CFGCHIP2_USB1PHYCLKMUX  (1 << 12)
#define CFGCHIP2_USB2PHYCLKMUX  (1 << 11)
#define CFGCHIP2_PHYPWRDN       (1 << 10)
#define CFGCHIP2_OTGPWRDN       (1 << 9)
#define CFGCHIP2_DATPOL         (1 << 8)
#define CFGCHIP2_USB1SUSPENDM   (1 << 7)
#define CFGCHIP2_PHY_PLLON      (1 << 6)        /* override PLL suspend */
#define CFGCHIP2_SESENDEN       (1 << 5)        /* Vsess_end comparator */
#define CFGCHIP2_VBDTCTEN       (1 << 4)        /* Vbus comparator */
#define CFGCHIP2_REFFREQ        (0xf << 0)
#define CFGCHIP2_REFFREQ_12MHZ  (1 << 0)
#define CFGCHIP2_REFFREQ_24MHZ  (2 << 0)
#define CFGCHIP2_REFFREQ_48MHZ  (3 << 0)

struct  da8xx_ohci_root_hub;

typedef void (*da8xx_ocic_handler_t)(struct da8xx_ohci_root_hub *hub,
                                     unsigned port);

/* Passed as the platform data to the OHCI driver */
struct  da8xx_ohci_root_hub {
        /* Switch the port power on/off */
        int     (*set_power)(unsigned port, int on);
        /* Read the port power status */
        int     (*get_power)(unsigned port);
        /* Read the port over-current indicator */
        int     (*get_oci)(unsigned port);
        /* Over-current indicator change notification (pass NULL to disable) */
        int     (*ocic_notify)(da8xx_ocic_handler_t handler);

        /* Time from power on to power good (in 2 ms units) */
        u8      potpgt;
};

void davinci_setup_usb(unsigned mA, unsigned potpgt_ms);

#endif  /* ifndef __ASM_ARCH_USB_H */