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  */
30 struct omap_wd_timer_platform_data {
31 	u32 (*read_reset_sources)(void);
32 };
33 
34 #endif
35