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1 /*
2  * Copyright (C) 2010
3  * Reinhard Meyer, reinhard.meyer@emk-elektronik.de
4  *
5  * Real-time Timer
6  * Based on AT91SAM9XE datasheet
7  *
8  * SPDX-License-Identifier:     GPL-2.0+
9  */
10
11 #ifndef AT91_RTT_H
12 #define AT91_RTT_H
13
14 #ifndef __ASSEMBLY__
15
16 typedef struct at91_rtt {
17         u32     mr;     /* Mode Register   RW 0x00008000 */
18         u32     ar;     /* Alarm Register  RW 0xFFFFFFFF */
19         u32     vr;     /* Value Register  RO 0x00000000 */
20         u32     sr;     /* Status Register RO 0x00000000 */
21 } at91_rtt_t;
22
23 #endif /* __ASSEMBLY__ */
24
25 #define AT91_RTT_MR_RTPRES      0x0000ffff
26 #define AT91_RTT_MR_ALMIEN      0x00010000
27 #define AT91_RTT_RTTINCIEN      0x00020000
28 #define AT91_RTT_RTTRST 0x00040000
29
30 #define AT91_RTT_SR_ALMS        0x00000001
31 #define AT91_RTT_SR_RTTINC      0x00000002
32
33 #endif