arm64: dts: renesas: Add initial device tree for RZ SMARC Carrier-II Board

Add the initial device tree for the RZ SMARC Carrier-II.  At the moment
it contains only the serial interface.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230929053915.1530607-26-claudiu.beznea@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
new file mode 100644 (file)
index 0000000..e7073a0
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the RZ SMARC Carrier-II Board.
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+/ {
+       aliases {
+               serial0 = &scif0;
+       };
+};
+
+&pinctrl {
+       scif0_pins: scif0 {
+               pinmux = <RZG2L_PORT_PINMUX(6, 3, 1)>, /* RXD */
+                        <RZG2L_PORT_PINMUX(6, 4, 1)>; /* TXD */
+       };
+};
+
+&scif0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&scif0_pins>;
+       status = "okay";
+};