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author | Shaohui Xie <Shaohui.Xie@nxp.com> | 2016-10-28 06:23:30 (GMT) |
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committer | York Sun <york.sun@nxp.com> | 2016-11-21 17:20:32 (GMT) |
commit | 9b46213b4f63578be2fbcf6b0532a0a8d4b5edb0 (patch) | |
tree | 0cbe53a4bb7fbb1534dde0c951ff75b88bbd798f | |
parent | 20c700f8daee0b3995c5a6d2c5f69eef1c7acd4e (diff) | |
download | u-boot-9b46213b4f63578be2fbcf6b0532a0a8d4b5edb0.tar.xz |
lpuart: add a get_lpuart_clk function
It's not always true that LPUART clock is CONFIG_SYS_CLK_FREQ. This
patch provides a weak function get_lpuart_clk(), so that the clock
can be ovreridden on a specific board which uses different clock
for LPUART.
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
[YS: Reformat commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
-rw-r--r-- | drivers/serial/serial_lpuart.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 042e9a2..beb4243 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -170,9 +170,14 @@ static int lpuart_serial_probe(struct udevice *dev) } #else +u32 __weak get_lpuart_clk(void) +{ + return CONFIG_SYS_CLK_FREQ; +} + static void _lpuart32_serial_setbrg(struct lpuart_fsl *base, int baudrate) { - u32 clk = CONFIG_SYS_CLK_FREQ; + u32 clk = get_lpuart_clk(); u32 sbr; sbr = (clk / (16 * baudrate)); |