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/* $OpenBSD: sitara_cm.h,v 1.1 2013/09/04 14:38:32 patrick Exp $ */
/* $NetBSD: sitara_cm.h,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */
/*
* Copyright (c) 2010
* Ben Gray <ben.r.gray@gmail.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ben Gray.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* Functions to configure the PIN multiplexing on the chip.
*
* This is different from the GPIO module in that it is used to configure the
* pins between modules not just GPIO input output.
*
*/
#ifndef _OMAP_SCM_H_
#define _OMAP_SCM_H_
struct sitara_cm_padconf {
uint16_t reg_off;
uint16_t gpio_pin;
uint16_t gpio_mode;
const char *ballname;
const char *muxmodes[8];
};
struct sitara_cm_padstate {
const char *state;
uint16_t reg;
};
struct sitara_cm_device {
uint16_t padconf_muxmode_mask;
uint16_t padconf_sate_mask;
struct sitara_cm_padstate *padstate;
struct sitara_cm_padconf *padconf;
};
int sitara_cm_padconf_set(const char *padname, const char *muxmode,
unsigned int state);
int sitara_cm_padconf_get(const char *padname, const char **muxmode,
unsigned int *state);
int sitara_cm_padconf_set_gpiomode(uint32_t gpio, unsigned int state);
int sitara_cm_padconf_get_gpiomode(uint32_t gpio, unsigned int *state);
int sitara_cm_padconf_set_gpioflags(uint32_t gpio, uint32_t flags);
void sitara_cm_padconf_get_gpioflags(uint32_t gpio, uint32_t *flags);
int sitara_cm_reg_read_4(uint32_t reg, uint32_t *val);
int sitara_cm_reg_write_4(uint32_t reg, uint32_t val);
#endif /* _OMAP_SCM_H_ */
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