| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * drivers/watchdog/at91sam9_wdt.h |
| 4 | * |
| 5 | * Copyright (C) 2007 Andrew Victor |
| 6 | * Copyright (C) 2007 Atmel Corporation. |
| 7 | * |
| 8 | * Watchdog Timer (WDT) - System peripherals regsters. |
| 9 | * Based on AT91SAM9261 datasheet revision D. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #ifndef AT91_WDT_H |
| 14 | #define AT91_WDT_H |
| 15 | |
| 16 | #define AT91_WDT_CR 0x00 /* Watchdog Control Register */ |
| 17 | #define AT91_WDT_WDRSTT (1 << 0) /* Restart */ |
| 18 | #define AT91_WDT_KEY (0xa5 << 24) /* KEY Password */ |
| 19 | |
| 20 | #define AT91_WDT_MR 0x04 /* Watchdog Mode Register */ |
| 21 | #define AT91_WDT_WDV (0xfff << 0) /* Counter Value */ |
| 22 | #define AT91_WDT_SET_WDV(x) ((x) & AT91_WDT_WDV) |
| 23 | #define AT91_WDT_WDFIEN (1 << 12) /* Fault Interrupt Enable */ |
| 24 | #define AT91_WDT_WDRSTEN (1 << 13) /* Reset Processor */ |
| 25 | #define AT91_WDT_WDRPROC (1 << 14) /* Timer Restart */ |
| 26 | #define AT91_WDT_WDDIS (1 << 15) /* Watchdog Disable */ |
| 27 | #define AT91_WDT_WDD (0xfff << 16) /* Delta Value */ |
| 28 | #define AT91_WDT_SET_WDD(x) (((x) << 16) & AT91_WDT_WDD) |
| 29 | #define AT91_WDT_WDDBGHLT (1 << 28) /* Debug Halt */ |
| 30 | #define AT91_WDT_WDIDLEHLT (1 << 29) /* Idle Halt */ |
| 31 | |
| 32 | #define AT91_WDT_SR 0x08 /* Watchdog Status Register */ |
| 33 | #define AT91_WDT_WDUNF (1 << 0) /* Watchdog Underflow */ |
| 34 | #define AT91_WDT_WDERR (1 << 1) /* Watchdog Error */ |
| 35 | |
| 36 | #endif |