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| author | Andrew Victor <andrew@sanpeople.com> | 2007-05-03 12:26:24 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-05-03 14:12:45 +0100 |
| commit | 03abeac0a222060ae8f02e8359c285df0971437e (patch) | |
| tree | 96fd9e6f11740a098ffa0958d218ff1f41e4b216 /drivers/serial/atmel_serial.h | |
| parent | 7c73628f24ea73479232d1b608359aa7d8d2c95d (diff) | |
| download | lwn-03abeac0a222060ae8f02e8359c285df0971437e.tar.gz lwn-03abeac0a222060ae8f02e8359c285df0971437e.zip | |
[ARM] 4357/1: AT91: Support slower serial baud-rates
Allow slower serial baud-rates by switching the UART clock from MCK to
MCK/8.
Based on patches by Mike Wolfram and Russell King.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/atmel_serial.h')
| -rw-r--r-- | drivers/serial/atmel_serial.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/serial/atmel_serial.h b/drivers/serial/atmel_serial.h index 11b44360e108..e0141776517c 100644 --- a/drivers/serial/atmel_serial.h +++ b/drivers/serial/atmel_serial.h @@ -46,6 +46,9 @@ #define ATMEL_US_USMODE_ISO7816_T1 6 #define ATMEL_US_USMODE_IRDA 8 #define ATMEL_US_USCLKS (3 << 4) /* Clock Selection */ +#define ATMEL_US_USCLKS_MCK (0 << 4) +#define ATMEL_US_USCLKS_MCK_DIV8 (1 << 4) +#define ATMEL_US_USCLKS_SCK (3 << 4) #define ATMEL_US_CHRL (3 << 6) /* Character Length */ #define ATMEL_US_CHRL_5 (0 << 6) #define ATMEL_US_CHRL_6 (1 << 6) |