linux-kernel - Re: [PATCH 08/12] riscv: dts: sophgo: add Milk-V Pioneer board device tree

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Date:   Fri, 15 Sep 2023 09:34:54 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Wang Chen <unicornxw@...il.com>, linux-riscv@...ts.infradead.org,
        conor@...nel.org, aou@...s.berkeley.edu,
        krzysztof.kozlowski+dt@...aro.org, palmer@...belt.com,
        paul.walmsley@...ive.com, robh+dt@...nel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        jszhang@...nel.org, guoren@...nel.org, chao.wei@...hgo.com,
        xiaoguang.xing@...hgo.com, Wang Chen <wangchen20@...as.ac.cn>,
        Inochi Amaoto <inochiama@...look.com>
Subject: Re: [PATCH 08/12] riscv: dts: sophgo: add Milk-V Pioneer board device
 tree

On 15/09/2023 09:24, Wang Chen wrote:
> Milk-V Pioneer [1] is a developer motherboard based on SOPHON
> SG2042 in a standard mATX form factor. It is a good
> choice for RISC-V developers and hardware pioneers to
> experience the cutting edge technology of RISC-V.
> 
> Currently only support booting into console with only uart
> enabled, other features will be added soon later.
> 
> [1]: https://milkv.io/pioneer
> 
> Signed-off-by: Xiaoguang Xing <xiaoguang.xing@...hgo.com>
> Signed-off-by: Inochi Amaoto <inochiama@...look.com>
> Signed-off-by: Wang Chen <wangchen20@...as.ac.cn>
> ---
>  arch/riscv/boot/dts/Makefile                     |  1 +
>  arch/riscv/boot/dts/sophgo/Makefile              |  3 +++
>  .../boot/dts/sophgo/sg2042-milkv-pioneer.dts     | 16 ++++++++++++++++
>  3 files changed, 20 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/sophgo/Makefile
>  create mode 100644 arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> 
> diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
> index f60a280abb15..94788486f13e 100644
> --- a/arch/riscv/boot/dts/Makefile
> +++ b/arch/riscv/boot/dts/Makefile
> @@ -6,5 +6,6 @@ subdir-y += renesas
>  subdir-y += sifive
>  subdir-y += starfive
>  subdir-y += thead
> +subdir-y += sophgo
>  
>  obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix /, $(subdir-y))
> diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile
> new file mode 100644
> index 000000000000..5a471b19df22
> --- /dev/null
> +++ b/arch/riscv/boot/dts/sophgo/Makefile
> @@ -0,0 +1,3 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb
> +
> diff --git a/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> new file mode 100644
> index 000000000000..4f480ff88fbd
> --- /dev/null
> +++ b/arch/riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts
> @@ -0,0 +1,16 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> + * Copyright (C) 2022 Sophgo Technology Inc. All rights reserved.
> + */
> +
> +#include "sg2042.dtsi"
> +
> +/ {
> +	model = "Milk-V Pioneer";
> +	compatible = "milkv,pioneer", "sophgo,sg2042";
> +
> +	info {

Drop, there is no such node. Otherwise, please point me where are the
bindings for it?

Anyway your submissions is incomplete. Your DTS should enable some
peripherals, like serials etc.

Best regards,
Krzysztof