ARM: at91: remove useless include

Both drivers using the system timer are now converted to an MFD. mach/at91_st.h
is now useless.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/include/mach/at91_st.h

-/*
- * arch/arm/mach-at91/include/mach/at91_st.h
- *
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) SAN People
- *
- * System Timer (ST) - System peripherals registers.
- * Based on AT91RM9200 datasheet revision E.
- *
- * 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_ST_H
-#define AT91_ST_H
-
-#ifndef __ASSEMBLY__
-extern void __iomem *at91_st_base;
-
-#define at91_st_read(field) \
-	__raw_readl(at91_st_base + field)
-
-#define at91_st_write(field, value) \
-	__raw_writel(value, at91_st_base + field)
-#else
-.extern at91_st_base
-#endif
-
-#define	AT91_ST_CR		0x00			/* Control Register */
-#define 	AT91_ST_WDRST		(1 << 0)		/* Watchdog Timer Restart */
-
-#define	AT91_ST_PIMR		0x04			/* Period Interval Mode Register */
-#define		AT91_ST_PIV		(0xffff <<  0)		/* Period Interval Value */
-
-#define	AT91_ST_WDMR		0x08			/* Watchdog Mode Register */
-#define		AT91_ST_WDV		(0xffff <<  0)		/* Watchdog Counter Value */
-#define		AT91_ST_RSTEN		(1	<< 16)		/* Reset Enable */
-#define		AT91_ST_EXTEN		(1	<< 17)		/* External Signal Assertion Enable */
-
-#define	AT91_ST_RTMR		0x0c			/* Real-time Mode Register */
-#define		AT91_ST_RTPRES		(0xffff <<  0)		/* Real-time Prescalar Value */
-
-#define	AT91_ST_SR		0x10			/* Status Register */
-#define		AT91_ST_PITS		(1 << 0)		/* Period Interval Timer Status */
-#define		AT91_ST_WDOVF		(1 << 1) 		/* Watchdog Overflow */
-#define		AT91_ST_RTTINC		(1 << 2) 		/* Real-time Timer Increment */
-#define		AT91_ST_ALMS		(1 << 3) 		/* Alarm Status */
-
-#define	AT91_ST_IER		0x14			/* Interrupt Enable Register */
-#define	AT91_ST_IDR		0x18			/* Interrupt Disable Register */
-#define	AT91_ST_IMR		0x1c			/* Interrupt Mask Register */
-
-#define	AT91_ST_RTAR		0x20			/* Real-time Alarm Register */
-#define		AT91_ST_ALMV		(0xfffff << 0)		/* Alarm Value */
-
-#define	AT91_ST_CRTR		0x24			/* Current Real-time Register */
-#define		AT91_ST_CRTV		(0xfffff << 0)		/* Current Real-Time Value */
-
-#endif