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      1 /* SPDX-License-Identifier: GPL-2.0+ */
      2 /*
      3  * [origin: Linux kernel include/asm-arm/arch-at91/at91_rstc.h]
      4  *
      5  * Copyright (C) 2007 Andrew Victor
      6  * Copyright (C) 2007 Atmel Corporation.
      7  *
      8  * Reset Controller (RSTC) - System peripherals regsters.
      9  * Based on AT91SAM9261 datasheet revision D.
     10  */
     11 
     12 #ifndef AT91_RSTC_H
     13 #define AT91_RSTC_H
     14 
     15 /* Reset Controller Status Register */
     16 #define AT91_ASM_RSTC_SR	(ATMEL_BASE_RSTC + 0x04)
     17 #define AT91_ASM_RSTC_MR	(ATMEL_BASE_RSTC + 0x08)
     18 
     19 #ifndef __ASSEMBLY__
     20 
     21 typedef struct at91_rstc {
     22 	u32	cr;	/* Reset Controller Control Register */
     23 	u32	sr;	/* Reset Controller Status Register */
     24 	u32	mr;	/* Reset Controller Mode Register */
     25 } at91_rstc_t;
     26 
     27 #endif /* __ASSEMBLY__ */
     28 
     29 #define AT91_RSTC_KEY		0xA5000000
     30 
     31 #define AT91_RSTC_CR_PROCRST	0x00000001
     32 #define AT91_RSTC_CR_PERRST	0x00000004
     33 #define AT91_RSTC_CR_EXTRST	0x00000008
     34 
     35 #define AT91_RSTC_MR_URSTEN	0x00000001
     36 #define AT91_RSTC_MR_URSTIEN	0x00000010
     37 #define AT91_RSTC_MR_ERSTL(x)	((x & 0xf) << 8)
     38 #define AT91_RSTC_MR_ERSTL_MASK	0x0000FF00
     39 
     40 #define AT91_RSTC_SR_NRSTL	0x00010000
     41 
     42 #define AT91_RSTC_RSTTYP		(7 << 8)	/* Reset Type */
     43 #define AT91_RSTC_RSTTYP_GENERAL	(0 << 8)
     44 #define AT91_RSTC_RSTTYP_WAKEUP	(1 << 8)
     45 #define AT91_RSTC_RSTTYP_WATCHDOG	(2 << 8)
     46 #define AT91_RSTC_RSTTYP_SOFTWARE	(3 << 8)
     47 #define AT91_RSTC_RSTTYP_USER		(4 << 8)
     48 
     49 #endif
     50