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path: root/drivers/serial/serial_sh.c
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Diffstat (limited to 'drivers/serial/serial_sh.c')
-rw-r--r--drivers/serial/serial_sh.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 0826d59ab2..144a925394 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -49,9 +49,15 @@ static struct uart_port sh_sci = {
static void sh_serial_setbrg(void)
{
DECLARE_GLOBAL_DATA_PTR;
-
+#ifdef CONFIG_SCIF_USE_EXT_CLK
+ unsigned short dl = DL_VALUE(gd->baudrate, CONFIG_SH_SCIF_CLK_FREQ);
+ sci_out(&sh_sci, DL, dl);
+ /* Need wait: Clock * 1/dl × 1/16 */
+ udelay((1000000 * dl * 16 / CONFIG_SYS_CLK_FREQ) * 1000 + 1);
+#else
sci_out(&sh_sci, SCBRR,
SCBRR_VALUE(gd->baudrate, CONFIG_SH_SCIF_CLK_FREQ));
+#endif
}
static int sh_serial_init(void)