[ARM] Merge current 2.6 into experimental tree.

5 files changed, 52 insertions, 15 deletions

diff --git a/include/asm-arm/arch-ebsa285/time.h b/include/asm-arm/arch-ebsa285/time.h
index a3b012a73887..f651eeb655be 100644
--- a/include/asm-arm/arch-ebsa285/time.h
+++ b/include/asm-arm/arch-ebsa285/time.h
@@ -243,6 +243,7 @@ void __init time_init(void)
 
 		if ((CMOS_READ(RTC_REG_A) & 0x7f) == RTC_REF_CLCK_32KHZ &&
 		    CMOS_READ(RTC_REG_B) == reg_b) {
+			struct timespec tv;
 
 			/*
 			 * We have a RTC.  Check the battery
@@ -250,7 +251,9 @@ void __init time_init(void)
 			if ((reg_d & 0x80) == 0)
 				printk(KERN_WARNING "RTC: *** warning: CMOS battery bad\n");
 
-			xtime.tv_sec = get_isa_cmos_time();
+			tv.tv_nsec = 0;
+			tv.tv_sec = get_isa_cmos_time();
+			do_settimeofday(&tv);
 			set_rtc = set_isa_cmos_time;
 		} else
 			rtc_base = 0;
diff --git a/include/asm-arm/arch-pxa/time.h b/include/asm-arm/arch-pxa/time.h
index 91865bd8fce8..dc46484fe0c7 100644
--- a/include/asm-arm/arch-pxa/time.h
+++ b/include/asm-arm/arch-pxa/time.h
@@ -73,9 +73,15 @@ pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 
 void __init time_init(void)
 {
+	struct timespec tv;
+
 	gettimeoffset = pxa_gettimeoffset;
 	set_rtc = pxa_set_rtc;
-	xtime.tv_sec = pxa_get_rtc_time();
+
+	tv.tv_nsec = 0;
+	tv.tv_sec = pxa_get_rtc_time();
+	do_settimeofday(&tv);
+
 	timer_irq.handler = pxa_timer_interrupt;
 	OSMR0 = 0;		/* set initial match at 0 */
 	OSSR = 0xf;		/* clear status on all timers */
diff --git a/include/asm-arm/arch-sa1100/time.h b/include/asm-arm/arch-sa1100/time.h
index a7c984968819..bd93a2feb9a3 100644
--- a/include/asm-arm/arch-sa1100/time.h
+++ b/include/asm-arm/arch-sa1100/time.h
@@ -92,9 +92,15 @@ sa1100_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 
 void __init time_init(void)
 {
+	struct timespec tv;
+
 	gettimeoffset = sa1100_gettimeoffset;
 	set_rtc = sa1100_set_rtc;
-	xtime.tv_sec = sa1100_get_rtc_time();
+
+	tv.tv.nsec = 0;
+	tv.tv_sec = sa1100_get_rtc_time();
+	do_settimeofday(&tv);
+
 	timer_irq.handler = sa1100_timer_interrupt;
 	OSMR0 = 0;		/* set initial match at 0 */
 	OSSR = 0xf;		/* clear status on all timers */
diff --git a/include/asm-arm/arch-shark/time.h b/include/asm-arm/arch-shark/time.h
index 86a9bdebae23..66e45254a628 100644
--- a/include/asm-arm/arch-shark/time.h
+++ b/include/asm-arm/arch-shark/time.h
@@ -34,8 +34,6 @@ void __init time_init(void)
 	outb(HZ_TIME & 0xff, 0x40);     /* LSB of count */
 	outb(HZ_TIME >> 8, 0x40);
 
-	xtime.tv_sec = 0;
-
 	timer_irq.handler = timer_interrupt;
 	setup_irq(IRQ_TIMER, &timer_irq);
 }
diff --git a/include/asm-arm/div64.h b/include/asm-arm/div64.h
index 3e3bdb7e7b79..4957da3df270 100644
--- a/include/asm-arm/div64.h
+++ b/include/asm-arm/div64.h
@@ -1,18 +1,42 @@
 #ifndef __ASM_ARM_DIV64
 #define __ASM_ARM_DIV64
 
-/* We're not 64-bit, but... */
+/*
+ * The semantics of do_div() are:
+ *
+ * uint32_t do_div(uint64_t *n, uint32_t base)
+ * {
+ * 	uint32_t remainder = *n % base;
+ * 	*n = *n / base;
+ * 	return remainder;
+ * }
+ *
+ * In other words, a 64-bit dividend with a 32-bit divisor producing
+ * a 64-bit result and a 32-bit remainder.  To accomplish this optimally
+ * we call a special __do_div64 helper with completely non standard
+ * calling convention for arguments and results (beware).
+ */
+
+#ifdef __ARMEB__
+#define __xh "r0"
+#define __xl "r1"
+#else
+#define __xl "r0"
+#define __xh "r1"
+#endif
+
 #define do_div(n,base)						\
 ({								\
-	register int __res asm("r2") = base;			\
-	register unsigned long long __n asm("r0") = n;		\
-	asm("bl do_div64"					\
-		: "=r" (__n), "=r" (__res)			\
-		: "0" (__n), "1" (__res)			\
-		: "r3", "ip", "lr", "cc");			\
-	n = __n;						\
-	__res;							\
+	register unsigned int __base      asm("r4") = base;	\
+	register unsigned long long __n   asm("r0") = n;	\
+	register unsigned long long __res asm("r2");		\
+	register unsigned int __rem       asm(__xh);		\
+	asm("bl	__do_div64"					\
+		: "=r" (__rem), "=r" (__res)			\
+		: "r" (__n), "r" (__base)			\
+		: "ip", "lr", "cc");				\
+	n = __res;						\
+	__rem;							\
 })
 
 #endif
-