Enable RSPI0 on RZ/G3E SMARC EVK.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../boot/dts/renesas/r9a09g047e57-smarc.dts      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
index 696903dc7a63..78dcbac8f4e8 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
@@ -167,6 +167,13 @@ rsci9_pins: rsci9 {
 		bias-pull-up;
 	};
 
+	rspi0_pins: rspi0 {
+		pinmux = <RZG3E_PORT_PINMUX(M, 4, 2)>, /* MISOA */
+			 <RZG3E_PORT_PINMUX(M, 5, 2)>, /* MOSIA */
+			 <RZG3E_PORT_PINMUX(M, 7, 2)>, /* SSLA0 */
+			 <RZG3E_PORT_PINMUX(M, 6, 2)>; /* RSPCKA */
+	};
+
 	scif_pins: scif {
 		pins = "SCIF_TXD", "SCIF_RXD";
 		renesas,output-impedance = <1>;
@@ -234,6 +241,15 @@ &rsci9 {
 };
 #endif
 
+&rspi0 {
+	pinctrl-0 = <&rspi0_pins>;
+	pinctrl-names = "default";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	status = "okay";
+};
+
 &scif0 {
 	pinctrl-0 = <&scif_pins>;
 	pinctrl-names = "default";
-- 
2.43.0

Hi Tommaso,

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v7.1.

On Tue, 17 Feb 2026 at 17:25, Tommaso Merciai
<tommaso.merciai.xr@bp.renesas.com> wrote:
> Enable RSPI0 on RZ/G3E SMARC EVK.

which is available on the PMOD0 connector.

> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>

> --- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
> +++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
> @@ -167,6 +167,13 @@ rsci9_pins: rsci9 {
>                 bias-pull-up;
>         };
>
> +       rspi0_pins: rspi0 {
> +               pinmux = <RZG3E_PORT_PINMUX(M, 4, 2)>, /* MISOA */
> +                        <RZG3E_PORT_PINMUX(M, 5, 2)>, /* MOSIA */
> +                        <RZG3E_PORT_PINMUX(M, 7, 2)>, /* SSLA0 */
> +                        <RZG3E_PORT_PINMUX(M, 6, 2)>; /* RSPCKA */

I will exchange the last two lines while applying because of sort order.

> +       };
> +
>         scif_pins: scif {
>                 pins = "SCIF_TXD", "SCIF_RXD";
>                 renesas,output-impedance = <1>;

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v7.1.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds