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/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch_helpers.h>
#include <lib/mmio.h>
#include <mcucfg.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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