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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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.
*/
#include "ccm_analog_imx7d.h"
/*******************************************************************************
* Code
******************************************************************************/
/*FUNCTION**********************************************************************
*
* Function Name : CCM_ANALOG_GetSysPllFreq
* Description : Get system PLL frequency
*
*END**************************************************************************/
uint32_t CCM_ANALOG_GetSysPllFreq(CCM_ANALOG_Type * base)
{
if (CCM_ANALOG_IsPllBypassed(base, ccmAnalogPll480Control))
return 24000000;
if (CCM_ANALOG_PLL_480 & CCM_ANALOG_PLL_480_DIV_SELECT_MASK)
return 528000000;
else
return 480000000;
}
/*FUNCTION**********************************************************************
*
* Function Name : CCM_ANALOG_GetPfdFreq
* Description : Get PFD frequency
*
*END**************************************************************************/
uint32_t CCM_ANALOG_GetPfdFreq(CCM_ANALOG_Type * base, uint32_t pfdFrac)
{
uint32_t main, frac;
/* PFD should work with system PLL without bypass */
assert(!CCM_ANALOG_IsPllBypassed(base, ccmAnalogPll480Control));
main = CCM_ANALOG_GetSysPllFreq(base);
frac = CCM_ANALOG_GetPfdFrac(base, pfdFrac);
return main / frac * 18;
}
/*******************************************************************************
* EOF
******************************************************************************/
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