2 * [origin: Linux kernel include/asm-arm/arch-at91/at91_rstc.h]
4 * Copyright (C) 2007 Andrew Victor
5 * Copyright (C) 2007 Atmel Corporation.
7 * Reset Controller (RSTC) - System peripherals regsters.
8 * Based on AT91SAM9261 datasheet revision D.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
19 #define AT91_ASM_RSTC_MR (AT91_RSTC_BASE + 0x08)
23 typedef struct at91_rstc {
24 u32 cr; /* Reset Controller Control Register */
25 u32 sr; /* Reset Controller Status Register */
26 u32 mr; /* Reset Controller Mode Register */
29 #endif /* __ASSEMBLY__ */
31 #define AT91_RSTC_KEY 0xA5000000
33 #define AT91_RSTC_CR_PROCRST 0x00000001
34 #define AT91_RSTC_CR_PERRST 0x00000004
35 #define AT91_RSTC_CR_EXTRST 0x00000008
37 #define AT91_RSTC_MR_URSTEN 0x00000001
38 #define AT91_RSTC_MR_URSTIEN 0x00000010
39 #define AT91_RSTC_MR_ERSTL(x) ((x & 0xf) << 8)
40 #define AT91_RSTC_MR_ERSTL_MASK 0x0000FF00
42 #define AT91_RSTC_SR_NRSTL 0x00010000
44 #ifdef CONFIG_AT91_LEGACY
46 #define AT91_RSTC_CR (AT91_RSTC + 0x00) /* Reset Controller Control Register */
47 #define AT91_RSTC_PROCRST (1 << 0) /* Processor Reset */
48 #define AT91_RSTC_PERRST (1 << 2) /* Peripheral Reset */
49 #define AT91_RSTC_EXTRST (1 << 3) /* External Reset */
51 #define AT91_RSTC_SR (AT91_RSTC + 0x04) /* Reset Controller Status Register */
52 #define AT91_RSTC_URSTS (1 << 0) /* User Reset Status */
53 #define AT91_RSTC_RSTTYP (7 << 8) /* Reset Type */
54 #define AT91_RSTC_RSTTYP_GENERAL (0 << 8)
55 #define AT91_RSTC_RSTTYP_WAKEUP (1 << 8)
56 #define AT91_RSTC_RSTTYP_WATCHDOG (2 << 8)
57 #define AT91_RSTC_RSTTYP_SOFTWARE (3 << 8)
58 #define AT91_RSTC_RSTTYP_USER (4 << 8)
59 #define AT91_RSTC_NRSTL (1 << 16) /* NRST Pin Level */
60 #define AT91_RSTC_SRCMP (1 << 17) /* Software Reset Command in Progress */
62 #define AT91_RSTC_MR (AT91_RSTC + 0x08) /* Reset Controller Mode Register */
63 #define AT91_RSTC_URSTEN (1 << 0) /* User Reset Enable */
64 #define AT91_RSTC_URSTIEN (1 << 4) /* User Reset Interrupt Enable */
65 #define AT91_RSTC_ERSTL (0xf << 8) /* External Reset Length */
67 #endif /* CONFIG_AT91_LEGACY */