diff options
| author | Sergei Poselenov <sposelenov@emcraft.com> | 2008-08-14 14:08:28 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-09-09 02:14:41 +0200 |
| commit | 4265c35fbcb248e58179007621d61d32d0b3b82a (patch) | |
| tree | 4a97e0570b7b11a9ae895bf9fd0be14d51461b0f | |
| parent | 1055171ed05b7c4885737463d52b8d6c013bcb5d (diff) | |
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>
| -rw-r--r-- | board/integratorcp/integratorcp.c | 7 | ||||
| -rw-r--r-- | board/trab/tsc2000.c | 10 | ||||
| -rw-r--r-- | 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) |