soc/arm/renesas_smartbond/da1469x/soc.c

/*
 * Copyright (c) 2022 Renesas Electronics Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/init.h>
#include <zephyr/arch/arm/aarch32/cortex_m/cmsis.h>
#include <zephyr/arch/arm/aarch32/nmi.h>

void sys_arch_reboot(int type)
{
	ARG_UNUSED(type);

	NVIC_SystemReset();
}

static int renesas_da14699_init(const struct device *dev)
{
	ARG_UNUSED(dev);

	NMI_INIT();

	/* Freeze watchdog until configured */
	GPREG->SET_FREEZE_REG = GPREG_SET_FREEZE_REG_FRZ_SYS_WDOG_Msk;
	/* Reset clock dividers to 0 */
	CRG_TOP->CLK_AMBA_REG &= ~(CRG_TOP_CLK_AMBA_REG_HCLK_DIV_Msk |
				   CRG_TOP_CLK_AMBA_REG_PCLK_DIV_Msk);
	/* Enable all power domains except for radio */
	CRG_TOP->PMU_CTRL_REG = 0x02;

	return 0;
}

SYS_INIT(renesas_da14699_init, PRE_KERNEL_1, 0);