From: Shaohui Xie <shaohui....@nxp.com>
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
ovreride on a specific board which uses different clock for LPUART.
Signed-off-by: Shaohui Xie <shaohui....@nxp.com>
---
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 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));
--
2.1.0.27.g96db324
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