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usb.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 */
00043 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 */

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