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/*
* Copyright (c) 2018-2020, Renesas Electronics Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <arch_helpers.h>
#include "micro_delay.h"
#define RCAR_CONV_MICROSEC 1000000U
void
#if IMAGE_BL31
__attribute__ ((section(".system_ram")))
#endif
rcar_micro_delay(uint64_t micro_sec)
{
uint64_t freq;
uint64_t base_count;
uint64_t get_count;
uint64_t wait_time = 0U;
freq = read_cntfrq_el0();
base_count = read_cntpct_el0();
while (micro_sec > wait_time) {
get_count = read_cntpct_el0();
wait_time = ((get_count - base_count) * RCAR_CONV_MICROSEC) / freq;
}
}
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