powerpc: time-of-day fixes for 32-bit CHRP systems

This makes 32-bit CHRP systems use the RTAS time-of-day routines if
available.  It fixes a bug in the RTAS time-of-day routines where they
were storing a 64-bit timebase value in an unsigned long by making
those variables u64.  Also, the direct-access time-of-day routines
had the wrong convention for the month and year in the struct rtc_time.

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/rtas-rtc.c b/arch/powerpc/kernel/rtas-rtc.c
index 7b94866..635d3b9 100644
--- a/arch/powerpc/kernel/rtas-rtc.c
+++ b/arch/powerpc/kernel/rtas-rtc.c
@@ -15,7 +15,7 @@
 {
 	int ret[8];
 	int error, wait_time;
-	unsigned long max_wait_tb;
+	u64 max_wait_tb;
 
 	max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
 	do {
@@ -45,7 +45,7 @@
 {
         int ret[8];
 	int error, wait_time;
-	unsigned long max_wait_tb;
+	u64 max_wait_tb;
 
 	max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
 	do {
@@ -80,7 +80,7 @@
 int rtas_set_rtc_time(struct rtc_time *tm)
 {
 	int error, wait_time;
-	unsigned long max_wait_tb;
+	u64 max_wait_tb;
 
 	max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
 	do {