diff options
Diffstat (limited to 'arch/arm/include/asm/arch-at91/at91_rstc.h')
| -rw-r--r-- | arch/arm/include/asm/arch-at91/at91_rstc.h | 69 | 
1 files changed, 69 insertions, 0 deletions
| diff --git a/arch/arm/include/asm/arch-at91/at91_rstc.h b/arch/arm/include/asm/arch-at91/at91_rstc.h new file mode 100644 index 000000000..9ff2c5b7a --- /dev/null +++ b/arch/arm/include/asm/arch-at91/at91_rstc.h @@ -0,0 +1,69 @@ +/* + * [origin: Linux kernel include/asm-arm/arch-at91/at91_rstc.h] + * + * Copyright (C) 2007 Andrew Victor + * Copyright (C) 2007 Atmel Corporation. + * + * Reset Controller (RSTC) - System peripherals regsters. + * Based on AT91SAM9261 datasheet revision D. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef AT91_RSTC_H +#define AT91_RSTC_H + +#define AT91_ASM_RSTC_MR	(AT91_RSTC_BASE + 0x08) + +#ifndef __ASSEMBLY__ + +typedef struct at91_rstc { +	u32	cr;	/* Reset Controller Control Register */ +	u32	sr;	/* Reset Controller Status Register */ +	u32	mr;	/* Reset Controller Mode Register */ +} at91_rstc_t; + +#endif /* __ASSEMBLY__ */ + +#define AT91_RSTC_KEY		0xA5000000 + +#define AT91_RSTC_CR_PROCRST	0x00000001 +#define AT91_RSTC_CR_PERRST	0x00000004 +#define AT91_RSTC_CR_EXTRST	0x00000008 + +#define AT91_RSTC_MR_URSTEN	0x00000001 +#define AT91_RSTC_MR_URSTIEN	0x00000010 +#define AT91_RSTC_MR_ERSTL(x)	((x & 0xf) << 8) +#define AT91_RSTC_MR_ERSTL_MASK	0x0000FF00 + +#define AT91_RSTC_SR_NRSTL	0x00010000 + +#ifdef CONFIG_AT91_LEGACY + +#define AT91_RSTC_CR		(AT91_RSTC + 0x00)	/* Reset Controller Control Register */ +#define		AT91_RSTC_PROCRST	(1 << 0)		/* Processor Reset */ +#define		AT91_RSTC_PERRST	(1 << 2)		/* Peripheral Reset */ +#define		AT91_RSTC_EXTRST	(1 << 3)		/* External Reset */ + +#define AT91_RSTC_SR		(AT91_RSTC + 0x04)	/* Reset Controller Status Register */ +#define		AT91_RSTC_URSTS		(1 << 0)		/* User Reset Status */ +#define		AT91_RSTC_RSTTYP	(7 << 8)		/* Reset Type */ +#define			AT91_RSTC_RSTTYP_GENERAL	(0 << 8) +#define			AT91_RSTC_RSTTYP_WAKEUP		(1 << 8) +#define			AT91_RSTC_RSTTYP_WATCHDOG	(2 << 8) +#define			AT91_RSTC_RSTTYP_SOFTWARE	(3 << 8) +#define			AT91_RSTC_RSTTYP_USER	(4 << 8) +#define		AT91_RSTC_NRSTL		(1 << 16)		/* NRST Pin Level */ +#define		AT91_RSTC_SRCMP		(1 << 17)		/* Software Reset Command in Progress */ + +#define AT91_RSTC_MR		(AT91_RSTC + 0x08)	/* Reset Controller Mode Register */ +#define		AT91_RSTC_URSTEN	(1 << 0)		/* User Reset Enable */ +#define		AT91_RSTC_URSTIEN	(1 << 4)		/* User Reset Interrupt Enable */ +#define		AT91_RSTC_ERSTL		(0xf << 8)		/* External Reset Length */ + +#endif /* CONFIG_AT91_LEGACY */ + +#endif |