From 9b46213b4f63578be2fbcf6b0532a0a8d4b5edb0 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Fri, 28 Oct 2016 14:23:30 +0800 Subject: [PATCH] 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 [YS: Reformat commit message] Reviewed-by: York Sun --- drivers/serial/serial_lpuart.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 042e9a26d1..beb4243124 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));