board: freescale: t4240rdb: implement get_serial_clock
The serial clock is provided by the get_serial_clock() callback on PPC
under DM_SERIAL. Use the same method to compute the clock as for
non-DM_SERIAL use cases.
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/include/configs/T4240RDB.h b/include/configs/T4240RDB.h
index 506f1b7..78e1362 100644
--- a/include/configs/T4240RDB.h
+++ b/include/configs/T4240RDB.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2014 Freescale Semiconductor, Inc.
- * Copyright 2020-2021 NXP
+ * Copyright 2020-2023 NXP
*/
/*
@@ -77,7 +77,9 @@
* open - index 2
* shorted - index 1
*/
+#if !CONFIG_IS_ENABLED(DM_SERIAL)
#define CFG_SYS_NS16550_CLK (get_bus_freq(0)/2)
+#endif
#define CFG_SYS_BAUDRATE_TABLE \
{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200}