From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Add DT overlay for SCIF1 (of the Renesas RZ/G3S SoC) routed through the
PMOD1_3A interface available on the Renesas RZ SMARC Carrier II board.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/Makefile          |  3 ++
 .../dts/renesas/r9a08g045s33-smarc-pmod.dtso  | 48 +++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod.dtso

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 97228a3cb99c..7ad52630d350 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -137,6 +137,9 @@ r9a07g054l2-smarc-cru-csi-ov5645-dtbs := r9a07g054l2-smarc.dtb r9a07g054l2-smarc
 dtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc-cru-csi-ov5645.dtb
 
 dtb-$(CONFIG_ARCH_R9A08G045) += r9a08g045s33-smarc.dtb
+dtb-$(CONFIG_ARCH_R9A07G043) += r9a08g045s33-smarc-pmod.dtbo
+r9a08g045s33-smarc-pmod-dtbs := r9a08g045s33-smarc.dtb r9a08g045s33-smarc-pmod.dtbo
+dtb-$(CONFIG_ARCH_R9A07G043) += r9a08g045s33-smarc-pmod.dtb
 
 dtb-$(CONFIG_ARCH_R9A09G011) += r9a09g011-v2mevk2.dtb
 
diff --git a/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod.dtso b/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod.dtso
new file mode 100644
index 000000000000..7d637ab110e1
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod.dtso
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the RZ/G3S SMARC Carrier II EVK PMOD parts
+ *
+ * Copyright (C) 2024 Renesas Electronics Corp.
+ *
+ *
+ * [Connection]
+ *
+ * SMARC Carrier II EVK
+ * +--------------------------------------------+
+ * |PMOD1_3A (PMOD1 PIN HEADER)			|
+ * |	SCIF1_CTS# (pin1)  (pin7)  PMOD1_GPIO10	|
+ * |	SCIF1_TXD  (pin2)  (pin8)  PMOD1_GPIO11	|
+ * |	SCIF1_RXD  (pin3)  (pin9)  PMOD1_GPIO12	|
+ * |	SCIF1_RTS# (pin4)  (pin10) PMOD1_GPIO13	|
+ * |	GND	   (pin5)  (pin11) GND		|
+ * |	PWR_PMOD1  (pin6)  (pin12) GND		|
+ * +--------------------------------------------+
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+&{/} {
+	aliases {
+		serial0 = "/soc/serial@1004bc00";
+	};
+};
+
+&pinctrl {
+	scif1_pins: scif1-pins {
+		pinmux = <RZG2L_PORT_PINMUX(14, 0, 1)>, /* TXD */
+			 <RZG2L_PORT_PINMUX(14, 1, 1)>, /* RXD */
+			 <RZG2L_PORT_PINMUX(16, 0, 1)>, /* CTS */
+			 <RZG2L_PORT_PINMUX(16, 1, 1)>; /* RTS */
+	};
+};
+
+&scif1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&scif1_pins>;
+	uart-has-rtscts;
+	status = "okay";
+};
-- 
2.39.2