linux-hardening - Re: [PATCH v1 3/8] ARM: dts: aspeed: System1: IBM system1 BMC board

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Message-ID: <81d90c0d-9d7e-43a9-ade8-16b85a242b48@linaro.org>
Date: Tue, 12 Dec 2023 21:20:14 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Ninad Palsule <ninad@...ux.ibm.com>, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, joel@....id.au,
 andrew@...econstruct.com.au, peterhuewe@....de, jarkko@...nel.org,
 jgg@...pe.ca, keescook@...omium.org, tony.luck@...el.com,
 gpiccoli@...lia.com, johannes.holland@...ineon.com, linux@...ck-us.net,
 broonie@...nel.org
Cc: Andrew Geissler <geissonator@...oo.com>, patrick.rudolph@...ements.com,
 vincent@...emblay.dev, peteryin.openbmc@...il.com, lakshmiy@...ibm.com,
 bhelgaas@...gle.com, naresh.solanki@...ements.com,
 alexander.stein@...tq-group.com, festevam@...x.de,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
 linux-integrity@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v1 3/8] ARM: dts: aspeed: System1: IBM system1 BMC board

On 12/12/2023 17:39, Ninad Palsule wrote:
> From: Andrew Geissler <geissonator@...oo.com>
> 
> Add a device tree for IBM system1 BMC board. It uses AST2600 SOC.
> 
> Tested:
>     This board is tested using the simics simulator.
> 
> Signed-off-by: Andrew Geissler <geissonator@...oo.com>
> Signed-off-by: Ninad Palsule <ninad@...ux.ibm.com>
> ---
>  arch/arm/boot/dts/aspeed/Makefile             |   1 +
>  .../dts/aspeed/aspeed-bmc-ibm-system1.dts     | 188 ++++++++++++++++++
>  2 files changed, 189 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
> 
> diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
> index 3e3e6b96cb79..6f7ed11978ff 100644
> --- a/arch/arm/boot/dts/aspeed/Makefile
> +++ b/arch/arm/boot/dts/aspeed/Makefile
> @@ -35,6 +35,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
>  	aspeed-bmc-ibm-rainier.dtb \
>  	aspeed-bmc-ibm-rainier-1s4u.dtb \
>  	aspeed-bmc-ibm-rainier-4u.dtb \
> +	aspeed-bmc-ibm-system1.dtb \
>  	aspeed-bmc-intel-s2600wf.dtb \
>  	aspeed-bmc-inspur-fp5280g2.dtb \
>  	aspeed-bmc-inspur-nf5280m6.dtb \
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
> new file mode 100644
> index 000000000000..01291b407f59
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
> @@ -0,0 +1,188 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +// Copyright 2023 IBM Corp.
> +/dts-v1/;
> +
> +#include "aspeed-g6.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h>
> +#include <dt-bindings/i2c/i2c.h>
> +#include <dt-bindings/leds/leds-pca955x.h>
> +
> +/ {
> +	model = "System1";
> +	compatible = "ibm,system1-bmc", "aspeed,ast2600";
> +
> +	chosen {
> +		stdout-path = &uart5;
> +		bootargs = "console=ttyS4,115200n8 earlycon";

Drop early con, debugging feature not release. Then use stdout path
alone, so drop console as well.


> +	};
> +
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x80000000 0x40000000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		event_log: tcg_event_log@...00000 {

No underscores in node names.


Best regards,
Krzysztof