omap-wd-timer.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * OMAP2+ WDTIMER-specific function prototypes
 4 *
 5 * Copyright (C) 2012 Texas Instruments, Inc.
 6 * Paul Walmsley
 7 */
 8
 9#ifndef __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
10#define __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
11
12#include <linux/types.h>
13
14/*
15 * Standardized OMAP reset source bits
16 *
17 * This is a subset of the ones listed in arch/arm/mach-omap2/prm.h
18 * and are the only ones needed in the watchdog driver.
19 */
20#define OMAP_MPU_WD_RST_SRC_ID_SHIFT				3
21
22/**
23 * struct omap_wd_timer_platform_data - WDTIMER integration to the host SoC
24 * @read_reset_sources - fn ptr for the SoC to indicate the last reset cause
25 *
26 * The function pointed to by @read_reset_sources must return its data
27 * in a standard format - search for RST_SRC_ID_SHIFT in
28 * arch/arm/mach-omap2
29 */
30struct omap_wd_timer_platform_data {
31	u32 (*read_reset_sources)(void);
32};
33
34#endif