Messages in this thread Patch in this message | | | From | Haavard Skinnemoen <> | Subject | [PATCH] atmel_serial: Filter out FP during baud rate detection | Date | Tue, 27 May 2008 15:24:43 +0200 |
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I made a change to u-boot that used the FP (Fractional Part) field of BRGR to achieve more accurate baud rate generation. Unfortunately, the atmel_serial driver looks at the whole BRGR register when trying to detect the baud rate that the port is currently running at, so setting FP to a nonzero value breaks the baud rate detection.
I'll sit on the u-boot patch for a while longer, but this is clearly a bug in the atmel_serial driver which should be fixed.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> --- drivers/serial/atmel_serial.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index c065a70..42be8b0 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -1318,7 +1318,7 @@ static void __init atmel_console_get_options(struct uart_port *port, int *baud, * If the baud rate generator isn't running, the port wasn't * initialized by the boot loader. */ - quot = UART_GET_BRGR(port); + quot = UART_GET_BRGR(port) & ATMEL_US_CD; if (!quot) return; -- 1.5.5.1
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