linux-kernel - Re: [PATCH] arm64: dts: intel: add device tree for n6000

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Message-ID: <e549b689-4043-e689-d0b0-f274ed08a665@linaro.org>
Date:   Tue, 3 May 2022 14:23:55 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     matthew.gerlach@...ux.intel.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, dinguyen@...r.kernel.org,
        robh+dt@...r.kernel.org, krzysztof.kozlowski+dt@...aro.org
Subject: Re: [PATCH] arm64: dts: intel: add device tree for n6000

On 02/05/2022 18:58, matthew.gerlach@...ux.intel.com wrote:
> From: Matthew Gerlach <matthew.gerlach@...ux.intel.com>
> 
> Add a device tree for the n6000 instantiation of Agilex
> Hard Processor System (HPS).
> 
> Signed-off-by: Matthew Gerlach <matthew.gerlach@...ux.intel.com>
> ---
>  arch/arm64/boot/dts/intel/Makefile            |  1 +
>  .../boot/dts/intel/socfpga_agilex_n6000.dts   | 77 +++++++++++++++++++
>  2 files changed, 78 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
> 
> diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
> index 0b5477442263..1425853877cc 100644
> --- a/arch/arm64/boot/dts/intel/Makefile
> +++ b/arch/arm64/boot/dts/intel/Makefile
> @@ -1,5 +1,6 @@
>  # SPDX-License-Identifier: GPL-2.0-only
>  dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_socdk.dtb \
>  				socfpga_agilex_socdk_nand.dtb \
> +				socfpga_agilex_n6000.dtb \
>  				socfpga_n5x_socdk.dtb
>  dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb
> diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts b/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
> new file mode 100644
> index 000000000000..07f5a5983e5c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
> @@ -0,0 +1,77 @@
> +// SPDX-License-Identifier:     GPL-2.0

Except what Rob said: remove the indentation before license.

> +/*
> + * Copyright (C) 2021-2022, Intel Corporation
> + */
> +#include "socfpga_agilex.dtsi"
> +
> +/ {
> +	model = "SoCFPGA Agilex n6000";
> +
> +	aliases {
> +		serial0 = &uart1;
> +		serial1 = &uart0;
> +		ethernet0 = &gmac0;
> +		ethernet1 = &gmac1;
> +		ethernet2 = &gmac2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory {
> +		device_type = "memory";
> +		/* We expect the bootloader to fill in the reg */
> +		reg = <0 0 0 0>;
> +	};
> +
> +	soc {
> +		clocks {
> +			osc1 {
> +				clock-frequency = <25000000>;

This does not look like SoC property... If it is part of Soc, why it is
not provided by clock controller? Where compatible?

If you intended to override nodes, override by label, not by path.

Best regards,
Krzysztof