summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/serial_ns16550.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index 056ef2a..49e2c1f 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -130,13 +130,9 @@ static int calc_divisor (NS16550_t port)
#endif
#define MODE_X_DIV 16
- /* Compute divisor value. Normally, we should simply return:
- * CONFIG_SYS_NS16550_CLK) / MODE_X_DIV / gd->baudrate
- * but we need to round that value by adding 0.5.
- * Rounding is especially important at high baud rates.
- */
- return (CONFIG_SYS_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) /
- (MODE_X_DIV * gd->baudrate);
+
+ return DIV_ROUND_CLOSEST(CONFIG_SYS_NS16550_CLK,
+ MODE_X_DIV * gd->baudrate);
}
void