1 files changed, 0 insertions, 97 deletions
diff --git a/include/asm-i386/mc146818rtc.h b/include/asm-i386/mc146818rtc.h
deleted file mode 100644
index 1613b42eaf58..000000000000
--- a/include/asm-i386/mc146818rtc.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <linux/mc146818rtc.h>
-
-#ifndef RTC_PORT
-#define RTC_PORT(x)	(0x70 + (x))
-#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
-#endif
-
-#ifdef __HAVE_ARCH_CMPXCHG
-/*
- * This lock provides nmi access to the CMOS/RTC registers.  It has some
- * special properties.  It is owned by a CPU and stores the index register
- * currently being accessed (if owned).  The idea here is that it works
- * like a normal lock (normally).  However, in an NMI, the NMI code will
- * first check to see if its CPU owns the lock, meaning that the NMI
- * interrupted during the read/write of the device.  If it does, it goes ahead
- * and performs the access and then restores the index register.  If it does
- * not, it locks normally.
- *
- * Note that since we are working with NMIs, we need this lock even in
- * a non-SMP machine just to mark that the lock is owned.
- *
- * This only works with compare-and-swap.  There is no other way to
- * atomically claim the lock and set the owner.
- */
-#include <linux/smp.h>
-extern volatile unsigned long cmos_lock;
-
-/*
- * All of these below must be called with interrupts off, preempt
- * disabled, etc.
- */
-
-static inline void lock_cmos(unsigned char reg)
-{
-	unsigned long new;
-	new = ((smp_processor_id()+1) << 8) | reg;
-	for (;;) {
-		if (cmos_lock) {
-			cpu_relax();
-			continue;
-		}
-		if (__cmpxchg(&cmos_lock, 0, new, sizeof(cmos_lock)) == 0)
-			return;
-	}
-}
-
-static inline void unlock_cmos(void)
-{
-	cmos_lock = 0;
-}
-static inline int do_i_have_lock_cmos(void)
-{
-	return (cmos_lock >> 8) == (smp_processor_id()+1);
-}
-static inline unsigned char current_lock_cmos_reg(void)
-{
-	return cmos_lock & 0xff;
-}
-#define lock_cmos_prefix(reg) \
-	do {					\
-		unsigned long cmos_flags;	\
-		local_irq_save(cmos_flags);	\
-		lock_cmos(reg)
-#define lock_cmos_suffix(reg) \
-		unlock_cmos();			\
-		local_irq_restore(cmos_flags);	\
-	} while (0)
-#else
-#define lock_cmos_prefix(reg) do {} while (0)
-#define lock_cmos_suffix(reg) do {} while (0)
-#define lock_cmos(reg)
-#define unlock_cmos()
-#define do_i_have_lock_cmos() 0
-#define current_lock_cmos_reg() 0
-#endif
-
-/*
- * The yet supported machines all access the RTC index register via
- * an ISA port access but the way to access the date register differs ...
- */
-#define CMOS_READ(addr) rtc_cmos_read(addr)
-#define CMOS_WRITE(val, addr) rtc_cmos_write(val, addr)
-unsigned char rtc_cmos_read(unsigned char addr);
-void rtc_cmos_write(unsigned char val, unsigned char addr);
-
-#define RTC_IRQ 8
-
-#endif /* _ASM_MC146818RTC_H */