linux-kernel - Re: [PATCH v8 3/4] riscv: dts: thead: Enable BeagleV Ahead eMMC and microSD

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Date:   Thu, 7 Dec 2023 16:27:40 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Drew Fustini <dfustini@...libre.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Jisheng Zhang <jszhang@...nel.org>, Fu Wei <wefu@...hat.com>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jason Kridner <jkridner@...gleboard.org>,
        Robert Nelson <robertcnelson@...gleboard.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v8 3/4] riscv: dts: thead: Enable BeagleV Ahead eMMC and microSD

On Wed, Dec 6, 2023 at 4:09 PM Drew Fustini <dfustini@...libre.com> wrote:
>
> Add emmc node properties for the eMMC device and add sdio0 node
> properties for the microSD slot. Set the frequency for the sdhci
> reference clock.
>
> Signed-off-by: Drew Fustini <dfustini@...libre.com>
> ---
>  arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> index 70e8042c8304..d9b4de9e4757 100644
> --- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
> @@ -48,6 +48,10 @@ &apb_clk {
>         clock-frequency = <62500000>;
>  };
>
> +&sdhci_clk {
> +       clock-frequency = <198000000>;
> +};
> +
>  &uart_sclk {
>         clock-frequency = <100000000>;
>  };
> @@ -56,6 +60,22 @@ &dmac0 {
>         status = "okay";
>  };
>
> +&emmc {
> +       bus-width = <8>;
> +       max-frequency = <198000000>;
> +       mmc-hs400-1_8v;
> +       non-removable;
> +       no-sdio;
> +       no-sd;
> +       status = "okay";
> +};
> +
> +&sdio0 {
> +       bus-width = <4>;
> +       max-frequency = <198000000>;
> +       status = "okay";
> +};
> +
>  &uart0 {
>         status = "okay";
>  };
>
> --
> 2.34.1
>
Maybe, we could share some parts with th1520-lichee-module-4a.dtsi.
Others, LGTM.|

Reviewed-by: Guo Ren <guoren@...nel.org>

-- 
Best Regards
 Guo Ren