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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2015-05-06 12:31:58 -0700 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-05-07 09:49:38 +0200 |
| commit | 7aca256facf543162e2718091d69e1a61b62bc61 (patch) | |
| tree | f0c30c917f8d5e67bffbfaaef8d9e71fdff5f29c /include/serial | |
| parent | 18a5a9b969cf9af5d3668bd6e5918554369439d3 (diff) | |
| download | barebox-7aca256facf543162e2718091d69e1a61b62bc61.tar.gz barebox-7aca256facf543162e2718091d69e1a61b62bc61.tar.xz | |
i.MX: serial: Add baud rate calculation convenience functions
Add two functions to calculate values for UBMR and UBIR
registers. This way both early serial initalization code and
serial_imx.c can use them and not duplicate the code.
Singed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/serial')
| -rw-r--r-- | include/serial/imx-uart.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/serial/imx-uart.h b/include/serial/imx-uart.h index 0a0178882a..7275e6ac38 100644 --- a/include/serial/imx-uart.h +++ b/include/serial/imx-uart.h @@ -115,5 +115,14 @@ #define UTS_RXFULL (1<<3) /* RxFIFO full */ #define UTS_SOFTRST (1<<0) /* Software reset */ +static inline int baudrate_to_ubir(int baudrate) +{ + return baudrate / 100 - 1; +} + +static inline int refclock_to_ubmr(int clock_hz) +{ + return clock_hz / 1600 - 1; +} #endif /* __IMX_UART_H__ */ |