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/*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef IMX_WDOG_H
#define IMX_WDOG_H
#include <stdint.h>
#include <arch.h>
struct wdog_regs {
uint16_t wcr;
uint16_t wsr;
uint16_t wrsr;
uint16_t wicr;
uint16_t wmcr;
};
/* WCR bits */
#define WCR_WDZST BIT(0)
#define WCR_WDBG BIT(1)
#define WCR_WDE BIT(2)
#define WCR_WDT BIT(3)
#define WCR_SRS BIT(4)
#define WCR_WDA BIT(5)
#define WCR_SRE BIT(6)
#define WCR_WDW BIT(7)
#define WCR_WT(x) ((x) << 8)
/* WSR bits */
#define WSR_FIRST 0x5555
#define WSR_SECOND 0xAAAA
/* WRSR bits */
#define WRSR_SFTW BIT(0)
#define WRSR_TOUT BIT(1)
#define WRSR_POR BIT(4)
/* WICR bits */
static inline int wicr_calc_wict(int sec, int half_sec)
{
int wict_bits;
/* Represents WICR bits 7 - 0 */
wict_bits = ((sec << 1) | (half_sec ? 1 : 0));
return wict_bits;
}
#define WICR_WTIS BIT(14)
#define WICR_WIE BIT(15)
/* WMCR bits */
#define WMCR_PDE BIT(0)
/* External facing API */
void imx_wdog_init(void);
#endif /* IMX_WDOG_H */
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