arch/arm/mach-davinci/include/mach/usb.h

   1 /*
   2  * USB related definitions
   3  *
   4  * Copyright (C) 2009 MontaVista Software, Inc. <source@mvista.com>
   5  *
   6  * This file is licensed under the terms of the GNU General Public License
   7  * version 2. This program is licensed "as is" without any warranty of any
   8  * kind, whether express or implied.
   9  */
  10
  11 #ifndef __ASM_ARCH_USB_H
  12 #define __ASM_ARCH_USB_H
  13
  14 /* DA8xx CFGCHIP2 (USB 2.0 PHY Control) register bits */
  15 #define CFGCHIP2_PHYCLKGD       (1 << 17)
  16 #define CFGCHIP2_VBUSSENSE      (1 << 16)
  17 #define CFGCHIP2_RESET          (1 << 15)
  18 #define CFGCHIP2_OTGMODE        (3 << 13)
  19 #define CFGCHIP2_NO_OVERRIDE    (0 << 13)
  20 #define CFGCHIP2_FORCE_HOST     (1 << 13)
  21 #define CFGCHIP2_FORCE_DEVICE   (2 << 13)
  22 #define CFGCHIP2_FORCE_HOST_VBUS_LOW (3 << 13)
  23 #define CFGCHIP2_USB1PHYCLKMUX  (1 << 12)
  24 #define CFGCHIP2_USB2PHYCLKMUX  (1 << 11)
  25 #define CFGCHIP2_PHYPWRDN       (1 << 10)
  26 #define CFGCHIP2_OTGPWRDN       (1 << 9)
  27 #define CFGCHIP2_DATPOL         (1 << 8)
  28 #define CFGCHIP2_USB1SUSPENDM   (1 << 7)
  29 #define CFGCHIP2_PHY_PLLON      (1 << 6)        /* override PLL suspend */
  30 #define CFGCHIP2_SESENDEN       (1 << 5)        /* Vsess_end comparator */
  31 #define CFGCHIP2_VBDTCTEN       (1 << 4)        /* Vbus comparator */
  32 #define CFGCHIP2_REFFREQ        (0xf << 0)
  33 #define CFGCHIP2_REFFREQ_12MHZ  (1 << 0)
  34 #define CFGCHIP2_REFFREQ_24MHZ  (2 << 0)
  35 #define CFGCHIP2_REFFREQ_48MHZ  (3 << 0)
  36
  37 struct  da8xx_ohci_root_hub;
  38
  39 typedef void (*da8xx_ocic_handler_t)(struct da8xx_ohci_root_hub *hub,
  40                                      unsigned port);
  41
  42 /* Passed as the platform data to the OHCI driver */
  43 struct  da8xx_ohci_root_hub {
  44         /* Switch the port power on/off */
  45         int     (*set_power)(unsigned port, int on);
  46         /* Read the port power status */
  47         int     (*get_power)(unsigned port);
  48         /* Read the port over-current indicator */
  49         int     (*get_oci)(unsigned port);
  50         /* Over-current indicator change notification (pass NULL to disable) */
  51         int     (*ocic_notify)(da8xx_ocic_handler_t handler);
  52
  53         /* Time from power on to power good (in 2 ms units) */
  54         u8      potpgt;
  55 };
  56
  57 void davinci_setup_usb(unsigned mA, unsigned potpgt_ms);
  58
  59 #endif  /* ifndef __ASM_ARCH_USB_H */