usb-davinci.h

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/*
 * USB related definitions
 *
 * Copyright (C) 2009 MontaVista Software, Inc. <[email protected]>
 *
 * 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 */