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From:   Guo Ren <guoren@kernel.org>
Date:   Sun, 23 Jul 2023 07:04:01 +0800
Message-ID: <CAJF2gTTTJM8o+rTciXE2W29OaCTi+CPrSWx0+4XFA8yQBEGm9w@mail.gmail.com>
Subject: Re: [PATCH 1/3] riscv: dts: thead: add BeagleV Ahead board device tree
To:     Drew Fustini <dfustini@baylibre.com>
Cc:     Jisheng Zhang <jszhang@kernel.org>, Fu Wei <wefu@redhat.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Conor Dooley <conor@kernel.org>,
        linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Robert Nelson <robertcnelson@beagleboard.org>,
        Jason Kridner <jkridner@beagleboard.org>
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Reviewed-by: Guo Ren <guoren@kernel.org>

On Sun, Jul 23, 2023 at 5:56=E2=80=AFAM Drew Fustini <dfustini@baylibre.com=
> wrote:
>
> The BeagleV Ahead single board computer uses the T-Head TH1520 SoC.
> Add a minimal device tree to support basic uart/gpio/dmac drivers so
> that a user can boot to a basic shell.
>
> Link: https://beagleboard.org/beaglev-ahead
> Signed-off-by: Drew Fustini <dfustini@baylibre.com>
> ---
>  arch/riscv/boot/dts/thead/Makefile                 |  2 +-
>  arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 61 ++++++++++++++++=
++++++
>  2 files changed, 62 insertions(+), 1 deletion(-)
>
> diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/the=
ad/Makefile
> index e311fc9a5939..b55a17127c2b 100644
> --- a/arch/riscv/boot/dts/thead/Makefile
> +++ b/arch/riscv/boot/dts/thead/Makefile
> @@ -1,2 +1,2 @@
>  # SPDX-License-Identifier: GPL-2.0
> -dtb-$(CONFIG_ARCH_THEAD) +=3D th1520-lichee-pi-4a.dtb
> +dtb-$(CONFIG_ARCH_THEAD) +=3D th1520-lichee-pi-4a.dtb th1520-beaglev-ahe=
ad.dtb
> diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/ri=
scv/boot/dts/thead/th1520-beaglev-ahead.dts
> new file mode 100644
> index 000000000000..c315e5bd3d2d
> --- /dev/null
> +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> @@ -0,0 +1,61 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
> + * Copyright (C) 2023 Drew Fustini <dfustini@baylibre.com>
> + */
> +
> +/dts-v1/;
> +
> +#include "th1520.dtsi"
> +
> +/ {
> +       model =3D "BeagleV Ahead";
> +       compatible =3D "beagle,beaglev-ahead", "thead,th1520";
> +
> +       aliases {
> +               gpio0 =3D &gpio0;
> +               gpio1 =3D &gpio1;
> +               gpio2 =3D &gpio2;
> +               gpio3 =3D &gpio3;
> +               serial0 =3D &uart0;
> +               serial1 =3D &uart1;
> +               serial2 =3D &uart2;
> +               serial3 =3D &uart3;
> +               serial4 =3D &uart4;
> +               serial5 =3D &uart5;
> +       };
> +
> +       chosen {
> +               stdout-path =3D "serial0:115200n8";
> +       };
> +
> +       memory@0 {
> +               device_type =3D "memory";
> +               reg =3D <0x0  0x00000000  0x1 0x00000000>;
> +
> +       };
> +};
> +
> +&osc {
> +       clock-frequency =3D <24000000>;
> +};
> +
> +&osc_32k {
> +       clock-frequency =3D <32768>;
> +};
> +
> +&apb_clk {
> +       clock-frequency =3D <62500000>;
> +};
> +
> +&uart_sclk {
> +       clock-frequency =3D <100000000>;
> +};
> +
> +&dmac0 {
> +       status =3D "okay";
> +};
> +
> +&uart0 {
> +       status =3D "okay";
> +};
>
> --
> 2.34.1
>


--=20
Best Regards
 Guo Ren