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[u-boot] / arch / arm / include / asm / arch-sunxi / watchdog.h
1 /*
2  * (C) Copyright 2014
3  * Chen-Yu Tsai <wens@csie.org>
4  *
5  * Watchdog register definitions
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 #ifndef _SUNXI_WATCHDOG_H_
11 #define _SUNXI_WATCHDOG_H_
12
13 #define WDT_CTRL_RESTART        (0x1 << 0)
14 #define WDT_CTRL_KEY            (0x0a57 << 1)
15
16 #if defined(CONFIG_MACH_SUN4I) || \
17     defined(CONFIG_MACH_SUN5I) || \
18     defined(CONFIG_MACH_SUN7I) || \
19     defined(CONFIG_MACH_SUN8I_R40)
20
21 #define WDT_MODE_EN             (0x1 << 0)
22 #define WDT_MODE_RESET_EN       (0x1 << 1)
23
24 struct sunxi_wdog {
25         u32 ctl;                /* 0x00 */
26         u32 mode;               /* 0x04 */
27         u32 res[2];
28 };
29
30 #else
31
32 #define WDT_CFG_RESET           (0x1)
33 #define WDT_MODE_EN             (0x1)
34
35 struct sunxi_wdog {
36         u32 irq_en;             /* 0x00 */
37         u32 irq_sta;            /* 0x04 */
38         u32 res1[2];
39         u32 ctl;                /* 0x10 */
40         u32 cfg;                /* 0x14 */
41         u32 mode;               /* 0x18 */
42         u32 res2;
43 };
44
45 #endif
46
47 #endif /* _SUNXI_WATCHDOG_H_ */