[PATCH] powerpc, time: printk time stamp init not correct

[PATCH] powerpc, time: printk time stamp init not correct

[Heiko Schocher]

problem:

I see sometimes on my mpc5200 based board such printk timing
information:

[    0.000000] NR_IRQS:512 nr_irqs:512 16
[    0.000000] MPC52xx PIC is up and running!
[    0.000000] clocksource: timebase mult[79364d9] shift[22] registered
[    0.000000] console [ttyPSC0] enabled
[  130.300633] pid_max: default: 32768 minimum: 301
[  130.305647] Mount-cache hash table entries: 512
[  130.315818] NET: Registered protocol family 16

reason:
if the tbu not starts from 0 when linux boots, boot_tb
maybe could not store the real 64 bit tbu value, because
boot_tp is only a 32 bit unsigned long.

solution:
change boot_tb to unsigned long long

Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
---
 arch/powerpc/kernel/time.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index fa91732..a66df7d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -155,7 +155,7 @@ EXPORT_SYMBOL_GPL(rtc_lock);
 
 static u64 tb_to_ns_scale __read_mostly;
 static unsigned tb_to_ns_shift __read_mostly;
-static unsigned long boot_tb __read_mostly;
+static unsigned long long boot_tb __read_mostly;
 
 extern struct timezone sys_tz;
 static long timezone_offset;
-- 
1.7.2.3