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/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 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.
*
* Neither the name of ARM 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 <arch_helpers.h>
#include <mcucfg.h>
#include <mmio.h>
#include <mt8173_def.h>
#include <mt_cpuxgpt.h>
static void write_cpuxgpt(unsigned int reg_index, unsigned int value)
{
mmio_write_32((uintptr_t)&mt8173_mcucfg->xgpt_idx, reg_index);
mmio_write_32((uintptr_t)&mt8173_mcucfg->xgpt_ctl, value);
}
static void cpuxgpt_set_init_cnt(unsigned int countH, unsigned int countL)
{
write_cpuxgpt(INDEX_CNT_H_INIT, countH);
/* update count when countL programmed */
write_cpuxgpt(INDEX_CNT_L_INIT, countL);
}
void generic_timer_backup(void)
{
uint64_t cval;
cval = read_cntpct_el0();
cpuxgpt_set_init_cnt((uint32_t)(cval >> 32),
(uint32_t)(cval & 0xffffffff));
}
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