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/************************************************************************************
* arch/arm/src/sam34/sam_clockconfig.h
*
* Copyright (C) 2009-2011, 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_SAM34_SAM_CLOCKCONFIG_H
#define __ARCH_ARM_SRC_SAM34_SAM_CLOCKCONFIG_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* SAM4L helper functions */
#ifdef CONFIG_ARCH_CHIP_SAM4L
# define sam_enableperipheral(a,s) sam_modifyperipheral(a,0,s)
# define sam_disableperipheral(a,s) sam_modifyperipheral(a,s,0)
# define sam_cpu_enableperipheral(s) sam_enableperipheral(SAM_PM_CPUMASK,s)
# define sam_hsb_enableperipheral(s) sam_enableperipheral(SAM_PM_HSBMASK,s)
# define sam_pbc_enableperipheral(s) sam_enableperipheral(SAM_PM_PBCMASK,s)
# define sam_pbd_enableperipheral(s) sam_enableperipheral(SAM_PM_PBDMASK,s)
# define sam_cpu_disableperipheral(s) sam_disableperipheral(SAM_PM_CPUMASK,s)
# define sam_hsb_disableperipheral(s) sam_disableperipheral(SAM_PM_HSBMASK,s)
# define sam_pbc_enableperipheral(s) sam_enableperipheral(SAM_PM_PBCMASK,s)
# define sam_pbd_enableperipheral(s) sam_enableperipheral(SAM_PM_PBDMASK,s)
#endif
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Inline Functions
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Public Data
************************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: sam_clockconfig
*
* Description:
* Called to initialize the SAM3/4. This does whatever setup is needed to put the
* SoC in a usable state. This includes the initialization of clocking using the
* settings in board.h.
*
************************************************************************************/
void sam_clockconfig(void);
/****************************************************************************
* Name: sam_modifyperipheral
*
* Description:
* This is a convenience function that is intended to be used to enable
* or disable module clocking.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_SAM4L
void sam_modifyperipheral(uintptr_t regaddr, uint32_t clrbits, uint32_t setbits);
#endif
/****************************************************************************
* Name: sam_pba_enableperipheral
*
* Description:
* This is a convenience function to enable a peripheral on the APBA
* bridge.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_SAM4L
void sam_pba_enableperipheral(uint32_t bitset);
#endif
/****************************************************************************
* Name: sam_pba_disableperipheral
*
* Description:
* This is a convenience function to disable a peripheral on the APBA
* bridge.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_SAM4L
void sam_pba_disableperipheral(uint32_t bitset);
#endif
/****************************************************************************
* Name: sam_pbb_enableperipheral
*
* Description:
* This is a convenience function to enable a peripheral on the APBB
* bridge.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_SAM4L
void sam_pbb_enableperipheral(uint32_t bitset);
#endif
/****************************************************************************
* Name: sam_pbb_disableperipheral
*
* Description:
* This is a convenience function to disable a peripheral on the APBA
* bridge.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_SAM4L
void sam_pbb_disableperipheral(uint32_t bitset);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_SAM34_SAM_CLOCKCONFIG_H */
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