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strmhz(): Round numbers when printing clock frequencies 

Round clock frequencies for printing.

Many boards printed off clock frequencies like 399 MHz instead of the
exact 400 MHz because numberes were not rounded. This is fixed now.

Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Wolfgang Denk 2008-10-19 02:35:48 +02:00
parent 681c02d05b
commit d50c7d4be1
2 changed files with 7 additions and 4 deletions
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5
include/common.h
View File

@ -692,8 +692,9 @@ void __attribute__((weak)) show_boot_progress (int val);
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define DIV_ROUND(n,d) (((n) + ((d)/2)) / (d))
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define ALIGN(x,a) __ALIGN_MASK((x),(typeof(x))(a)-1)
#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))

6
lib_generic/strmhz.c
View File

@ -27,9 +27,11 @@ char *strmhz (char *buf, long hz)
long l, n;
long m;
n = hz / 1000000L;
n = DIV_ROUND(hz, 1000000L);
l = sprintf (buf, "%ld", n);
m = (hz % 1000000L) / 1000L;
hz -= n * 1000000L;
m = DIV_ROUND(hz, 1000L);
if (m != 0)
sprintf (buf + l, ".%03ld", m);
return (buf);