[PATCH v3] arm64: dts: renesas: r8a779md: Add support for R-Car M3Le R8A779MD Geist

[Geert Uytterhoeven]

On Fri, 22 May 2026 at 19:20, Marek Vasut
<marek.vasut+renesas at mailbox.org> wrote:
> From: Nguyen Tran <nguyen.tran.pz at bp.renesas.com>
>
> Add support for the Geist board based on the Renesas R-Car R8A779MD (M3Le)
> SoC, a register-compatible variant of the R8A77965 (M3-N) with reduced set
> of peripherals.
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
> Signed-off-by: Nguyen Tran <nguyen.tran.pz at bp.renesas.com>
> Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>

> V3: - Drop pwm2 and pwm2_pins
>     - Follow KSZ9031RNX tSR for reset assert time,
>       FIGURE 7-5 Note 2 for reset post-deassert time
>     - Add RB from Geert

Thanks, will queue in renesas-devel for v7.2...

> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/r8a779md-geist.dts
> @@ -0,0 +1,720 @@
> +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +/*
> + * Device Tree Source for the Geist board with R-Car M3Le
> + *
> + * Copyright (C) 2025-2026 Renesas Electronics Corp.
> + */
> +
> +/dts-v1/;
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include "r8a779md.dtsi"
> +
> +/ {
> +       model = "Renesas Geist board based on r8a779md";
> +       compatible = "renesas,geist", "renesas,r8a779md", "renesas,r8a77965";
> +
> +       aliases {
> +               serial0 = &scif2;
> +               serial1 = &hscif1;
> +               ethernet0 = &avb;
> +               mmc0 = &sdhi2;
> +               mmc1 = &sdhi0;
> +       };
> +
> +       chosen {
> +               bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
> +               stdout-path = "serial0:115200n8";
> +       };

... with the chosen node moved to its final alphabetical sorting position.

> +
> +       audio_clkout: audio-clkout {

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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