[PATCH 3/3] arm64: dts: add support for A9 based Amlogic BY401

Martin Blumenstingl martin.blumenstingl at googlemail.com
Mon Feb 9 14:19:06 PST 2026


On Thu, Feb 5, 2026 at 7:04 AM Xianwei Zhao via B4 Relay
<devnull+xianwei.zhao.amlogic.com at kernel.org> wrote:
[...]
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts b/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts
> new file mode 100644
> index 000000000000..ad35a3292d49
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts
> @@ -0,0 +1,41 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2026 Amlogic, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include "amlogic-a9.dtsi"
> +/ {
> +       model = "Amlogic A311DY3 BY401 Development Board";
> +       compatible = "amlogic,by401", "amlogic,a9";
> +       interrupt-parent = <&gic>;
Shouldn't this go into amlogic-a9.dtsi (I can't see why different
boards may choose a different default interrupt-parent)?



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