diff options
| author | Stefan Roese <sr@denx.de> | 2008-07-17 10:41:06 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-07-17 10:41:06 +0200 |
| commit | 42246dacf60d5028d3a48a220ce94efcf56faec4 (patch) | |
| tree | 52613a7ee19d68700426c8e7d7504346daa0f7f3 /drivers/serial/serial.c | |
| parent | 11188d55bc16dd907451c00282e00a038f73dd62 (diff) | |
| parent | 699f05125509249072a0b865c8d35520d97cd501 (diff) | |
Merge branch 'master' of /home/stefan/git/u-boot/u-boot into next
Diffstat (limited to 'drivers/serial/serial.c')
| -rw-r--r-- | drivers/serial/serial.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c index 4ccaee28b05..8bbfcf9c0cb 100644 --- a/drivers/serial/serial.c +++ b/drivers/serial/serial.c @@ -124,8 +124,6 @@ static NS16550_t serial_ports[4] = { static int calc_divisor (NS16550_t port) { - uint32_t clk_divisor; - #ifdef CONFIG_OMAP1510 /* If can't cleanly clock 115200 set div to 1 */ if ((CFG_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) { @@ -149,15 +147,11 @@ static int calc_divisor (NS16550_t port) /* Compute divisor value. Normally, we should simply return: * CFG_NS16550_CLK) / MODE_X_DIV / gd->baudrate - * but we need to round that value by adding 0.5 (2/4). + * but we need to round that value by adding 0.5. * Rounding is especially important at high baud rates. */ - clk_divisor = (((4 * CFG_NS16550_CLK) / - (MODE_X_DIV * gd->baudrate)) + 2) / 4; - - debug("NS16550 clock divisor = %d\n", clk_divisor); - - return clk_divisor; + return (CFG_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) / + (MODE_X_DIV * gd->baudrate); } #if !defined(CONFIG_SERIAL_MULTI) |