[U-Boot] [PATCH 1/2] exynos: Correct use of 64-bit division
Simon Glass
sjg at chromium.org
Sat Apr 13 16:26:41 CEST 2013
The current code is causing errors like this on my toolchains:
/usr/x86_64-pc-linux-gnu/armv7a-cros-linux-gnueabi/binutils-bin/2.22/
ld.bfd.real: failed to merge target specific data of file /usr/lib/gcc/
armv7a-cros-linux-gnueabi/4.7.x-google/libgcc.a(_divdi3.o)
Use do_div() to avoid this.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
arch/arm/cpu/armv7/s5p-common/timer.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/s5p-common/timer.c b/arch/arm/cpu/armv7/s5p-common/timer.c
index 6a0fa58..4adfaae 100644
--- a/arch/arm/cpu/armv7/s5p-common/timer.c
+++ b/arch/arm/cpu/armv7/s5p-common/timer.c
@@ -24,6 +24,7 @@
*/
#include <common.h>
+#include <div64.h>
#include <asm/io.h>
#include <asm/arch/pwm.h>
#include <asm/arch/clk.h>
@@ -76,6 +77,8 @@ int timer_init(void)
*/
unsigned long get_timer(unsigned long base)
{
+ unsigned long long time_ms;
+
ulong now = timer_get_us_down();
/*
@@ -87,7 +90,9 @@ unsigned long get_timer(unsigned long base)
gd->arch.lastinc = now;
/* Divide by 1000 to convert from us to ms */
- return gd->arch.timer_reset_value / 1000 - base;
+ time_ms = gd->arch.timer_reset_value;
+ do_div(time_ms, 1000);
+ return time_ms - base;
}
unsigned long timer_get_us(void)
--
1.8.1.3
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