blob: f58e10b27b2fe28ddb47524adf1bb09d69ba63fe [file] [log] [blame]
/*
* Copyright (c) 2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <limits.h>
#include <platform_def.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <drivers/st/stm32mp1_rcc.h>
#include <drivers/st/stm32mp1_reset.h>
#include <lib/mmio.h>
#include <lib/utils_def.h>
#define RST_CLR_OFFSET 4U
void stm32mp1_reset_assert(uint32_t id)
{
uint32_t offset = (id / (uint32_t)__LONG_BIT) * sizeof(uintptr_t);
uint32_t bit = id % (uint32_t)__LONG_BIT;
mmio_write_32(RCC_BASE + offset, BIT(bit));
while ((mmio_read_32(RCC_BASE + offset) & BIT(bit)) == 0U) {
;
}
}
void stm32mp1_reset_deassert(uint32_t id)
{
uint32_t offset = ((id / (uint32_t)__LONG_BIT) * sizeof(uintptr_t)) +
RST_CLR_OFFSET;
uint32_t bit = id % (uint32_t)__LONG_BIT;
mmio_write_32(RCC_BASE + offset, BIT(bit));
while ((mmio_read_32(RCC_BASE + offset) & BIT(bit)) != 0U) {
;
}
}