From: TsiChung Liew <[EMAIL PROTECTED]>
If bus frequency is larger than 133MHz, the UART cannot
output baudrate at 115200 correctly.
Signed-off-by: TsiChung Liew <[EMAIL PROTECTED]>
---
drivers/serial/mcfuart.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/mcfuart.c b/drivers/serial/mcfuart.c
index 88f3eb1..fca76bd 100644
--- a/drivers/serial/mcfuart.c
+++ b/drivers/serial/mcfuart.c
@@ -64,7 +64,10 @@ int serial_init(void)
/* Setting up BaudRate */
counter = (u32) (gd->bus_clk / (gd->baudrate));
- counter >>= 5;
+ counter = (counter + 31) >> 5;
+
+ if ((gd->bus_clk > 133333333) && (gd->baudrate >= 115200))
+ counter++;
/* write to CTUR: divide counter upper byte */
uart->ubg1 = (u8) ((counter & 0xff00) >> 8);
--
1.5.4.1
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