linux-kernel - Re: [PATCH] RISC-V: add Star64 board devicetree

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Date: Thu, 23 May 2024 22:27:30 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: H Bell <dmoo_dv@...tonmail.com>, Emil Renner Berthing <kernel@...il.dk>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Paul Walmsley
 <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
 Albert Ou <aou@...s.berkeley.edu>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] RISC-V: add Star64 board devicetree

On 23/05/2024 21:06, H Bell wrote:
> The Pine64 Star64 is a development board based on the Starfive JH7110 SoC.
> The board features:
> 
> - JH7110 SoC
> - 4/8 GiB LPDDR4 DRAM
> - AXP15060 PMIC
> - 40 pin GPIO header
> - 1x USB 3.0 host port
> - 3x USB 2.0 host port
> - 1x eMMC slot
> - 1x MicroSD slot
> - 1x QSPI Flash
> - 2x 1Gbps Ethernet port
> - 1x HDMI port
> - 1x 4-lane DSI
> - 1x 2-lane CSI
> - 1x PCIe 2.0 x1 lane
> 
> Signed-off-by: Henry Bell <dmoo_dv@...tonmail.com>
> Cc: Conor Dooley <conor.dooley@...rochip.com>
> ---
>  arch/riscv/boot/dts/starfive/Makefile         |  1 +
>  .../dts/starfive/jh7110-pine64-star64.dts     | 62 +++++++++++++++++++
>  2 files changed, 63 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
> 
> diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
> index 2fa0cd7f31c3..7a163a7d6ba3 100644
> --- a/arch/riscv/boot/dts/starfive/Makefile
> +++ b/arch/riscv/boot/dts/starfive/Makefile
> @@ -9,5 +9,6 @@ dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-beaglev-starlight.dtb
>  dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
>  
>  dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-milkv-mars.dtb
> +dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-pine64-star64.dtb
>  dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
>  dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
> new file mode 100644
> index 000000000000..c70fffd51181
> --- /dev/null
> +++ b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
> @@ -0,0 +1,62 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> +* Copyright (C) 2022 StarFive Technology Co., Ltd.
> +* Copyright (C) 2022 Emil Renner Berthing <kernel@...il.dk>
> +*/
> +
> +/dts-v1/;
> +#include "jh7110-common.dtsi"
> +
> +/ {
> +	model = "Pine64 Star64";
> +	compatible = "pine64,star64", "starfive,jh7110";

Please run scripts/checkpatch.pl and fix reported warnings. Then please
run `scripts/checkpatch.pl --strict` and (probably) fix more warnings.
Some warnings can be ignored, especially from --strict run, but the code
here looks like it needs a fix. Feel free to get in touch if the warning
is not clear.

It does not look like you tested the DTS against bindings. Please run
`make dtbs_check W=1` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

> +		aliases {
> +				ethernet1 = &gmac1;
> +		};

Messed indentation.


> +};
> +
> +&gmac0 {
> +	starfive,tx-use-rgmii-clk;
> +	assigned-clocks = <&aoncrg JH7110_AONCLK_GMAC0_TX>;
> +	assigned-clock-parents = <&aoncrg JH7110_AONCLK_GMAC0_RMII_RTX>;
> +};
> +
> +&gmac1 {
> +	phy-handle = <&phy1>;
> +	phy-mode = "rgmii-id";
> +	status = "okay";

Status is the last property. Please read DTS coding style.


Best regards,
Krzysztof