linux-sg2042/arch/arm/mach-davinci/include/mach/usb.h

60 lines
2.0 KiB
C

/*
* 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 */