| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * omap_wdt.h |
| * |
| * OMAP Watchdog header file |
| * |
| * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ |
| */ |
| |
| #ifndef __OMAP_WDT_H__ |
| #define __OMAP_WDT_H__ |
| |
| /* |
| * Watchdog: |
| * Using the prescaler, the OMAP watchdog could go for many |
| * months before firing. These limits work without scaling, |
| * with the 60 second default assumed by most tools and docs. |
| */ |
| #define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */ |
| #define TIMER_MARGIN_DEFAULT 60 /* 60 secs */ |
| #define TIMER_MARGIN_MIN 1 |
| |
| #define PTV 0 /* prescale */ |
| #define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1) |
| #define WDT_WWPS_PEND_WCLR BIT(0) |
| #define WDT_WWPS_PEND_WLDR BIT(2) |
| #define WDT_WWPS_PEND_WTGR BIT(3) |
| #define WDT_WWPS_PEND_WSPR BIT(4) |
| |
| #define WDT_WCLR_PRE BIT(5) |
| #define WDT_WCLR_PTV_OFF 2 |
| |
| /* Watchdog timer registers */ |
| struct wd_timer { |
| unsigned int resv1[4]; |
| unsigned int wdtwdsc; /* offset 0x010 */ |
| unsigned int wdtwdst; /* offset 0x014 */ |
| unsigned int wdtwisr; /* offset 0x018 */ |
| unsigned int wdtwier; /* offset 0x01C */ |
| unsigned int wdtwwer; /* offset 0x020 */ |
| unsigned int wdtwclr; /* offset 0x024 */ |
| unsigned int wdtwcrr; /* offset 0x028 */ |
| unsigned int wdtwldr; /* offset 0x02C */ |
| unsigned int wdtwtgr; /* offset 0x030 */ |
| unsigned int wdtwwps; /* offset 0x034 */ |
| unsigned int resv2[3]; |
| unsigned int wdtwdly; /* offset 0x044 */ |
| unsigned int wdtwspr; /* offset 0x048 */ |
| unsigned int resv3[1]; |
| unsigned int wdtwqeoi; /* offset 0x050 */ |
| unsigned int wdtwqstar; /* offset 0x054 */ |
| unsigned int wdtwqsta; /* offset 0x058 */ |
| unsigned int wdtwqens; /* offset 0x05C */ |
| unsigned int wdtwqenc; /* offset 0x060 */ |
| unsigned int resv4[39]; |
| unsigned int wdt_unfr; /* offset 0x100 */ |
| }; |
| |
| #endif /* __OMAP_WDT_H__ */ |
