From 4265c35fbcb248e58179007621d61d32d0b3b82a Mon Sep 17 00:00:00 2001
From: Sergei Poselenov <sposelenov@emcraft.com>
Date: Thu, 14 Aug 2008 14:08:28 +0200
Subject: [PATCH] ARM: Use do_div() instead of division for "long long".
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
---
board/integratorcp/integratorcp.c | 7 ++++++-
board/trab/tsc2000.c | 10 ++++++----
cpu/arm1176/s3c64xx/interrupts.c | 5 ++++-
3 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/board/integratorcp/integratorcp.c b/board/integratorcp/integratorcp.c
index d6d6e13d5a..220513f329 100644
--- a/board/integratorcp/integratorcp.c
+++ b/board/integratorcp/integratorcp.c
@@ -34,6 +34,7 @@
*/
#include <common.h>
+#include <div64.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -244,7 +245,11 @@ ulong get_timer_masked (void)
total_count += lastdec - now;
}
lastdec = now;
- timestamp = (ulong)(total_count/div_timer);
+
+ /* Reuse "now" */
+ now = total_count;
+ do_div(now, div_timer);
+ timestamp = now;
return timestamp;
}
diff --git a/board/trab/tsc2000.c b/board/trab/tsc2000.c
index 382a85b359..f13a5a9dc0 100644
--- a/board/trab/tsc2000.c
+++ b/board/trab/tsc2000.c
@@ -27,6 +27,7 @@
#include <common.h>
#include <s3c2400.h>
+#include <div64.h>
#include "tsc2000.h"
#include "Pt1000_temp_data.h"
@@ -332,6 +333,7 @@ void tsc2000_reg_init (void)
int tsc2000_interpolate(long value, long data[][2], long *result)
{
int i;
+ unsigned long long val;
/* the data is sorted and the first element is upper
* limit so we can easily check for out-of-band values
@@ -347,10 +349,10 @@ int tsc2000_interpolate(long value, long data[][2], long *result)
result in 'long long'.
*/
- *result = data[i-1][1] +
- ((unsigned long long)(data[i][1] - data[i-1][1])
- * (unsigned long long)(value - data[i-1][0]))
- / (data[i][0] - data[i-1][0]);
+ val = ((unsigned long long)(data[i][1] - data[i-1][1])
+ * (unsigned long long)(value - data[i-1][0]));
+ do_div(val, (data[i][0] - data[i-1][0]));
+ *result = data[i-1][1] + val;
return 0;
}
diff --git a/cpu/arm1176/s3c64xx/interrupts.c b/cpu/arm1176/s3c64xx/interrupts.c
index 8356ae49e4..e34369f890 100644
--- a/cpu/arm1176/s3c64xx/interrupts.c
+++ b/cpu/arm1176/s3c64xx/interrupts.c
@@ -41,6 +41,7 @@
#include <common.h>
#include <asm/proc-armv/ptrace.h>
#include <s3c6400.h>
+#include <div64.h>
static ulong timer_load_val;
@@ -148,7 +149,9 @@ void reset_timer(void)
ulong get_timer_masked(void)
{
- return get_ticks() / (timer_load_val / (100 * CFG_HZ));
+ unsigned long long res = get_ticks();
+ do_div (res, (timer_load_val / (100 * CFG_HZ)));
+ return res;
}
ulong get_timer(ulong base)
--
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