3132ae50cb
Add initial memorymap for Vybrid VF6xx module. Also add the clock control module which allows to control system clocks and enable clocks of individual pheripherials.
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/** @defgroup ccm_file CCM
|
|
*
|
|
* @ingroup VF6xx
|
|
*
|
|
* @section vf6xx_ccm_api_ex Clock Controller Module API.
|
|
*
|
|
* @brief <b>VF6xx Clock Controller Module</b>
|
|
*
|
|
* @author @htmlonly © @endhtmlonly 2014 Stefan Agner <stefan@agner.ch>
|
|
*
|
|
* @date 30 Jun 2014
|
|
*
|
|
* This library supports the Clock Controller Module in the VF6xx SoCs
|
|
* by Freescale.
|
|
*
|
|
* LGPL License Terms @ref lgpl_license
|
|
*/
|
|
|
|
/*
|
|
* This file is part of the libopencm3 project.
|
|
*
|
|
* Copyright (C) 2014 Stefan Agner <stefan@agner.ch>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <libopencm3/vf6xx/memorymap.h>
|
|
#include <libopencm3/vf6xx/ccm.h>
|
|
|
|
/**@{*/
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @brief Enable clock of given device
|
|
|
|
This enables (gates) the clock for the given device.
|
|
@param[in] gr enum ccm_clock_gate. Device
|
|
*/
|
|
void ccm_clock_gate_enable(enum ccm_clock_gate gr)
|
|
{
|
|
uint32_t offset = (uint32_t)gr / 16;
|
|
uint32_t gr_mask = 0x3 << ((gr % 16) * 2);
|
|
CCM_CCGR(offset * 4) |= gr_mask;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @brief Disable clock of given device
|
|
|
|
This disables (ungates) the clock for the given device.
|
|
@param[in] gr enum ccm_clock_gate. Device
|
|
*/
|
|
|
|
void ccm_clock_gate_disable(enum ccm_clock_gate gr)
|
|
{
|
|
uint32_t offset = (uint32_t)gr / 16;
|
|
uint32_t gr_mask = 0x3 << ((gr % 16) * 2);
|
|
CCM_CCGR(offset * 4) &= ~gr_mask;
|
|
}
|
|
/**@}*/
|