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

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Message-ID: <e8e4e5fe-5fa6-4098-97fc-7c6a48da9c4e@linux.ibm.com>
Date: Thu, 14 Dec 2023 09:06:54 -0600
From: Ninad Palsule <ninad@...ux.ibm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 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

Hello Krzysztof,


On 12/12/23 14:20, Krzysztof Kozlowski wrote:
> 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.
Fixed as per your suggestion.
>
>> +	};
>> +
>> +	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.

Fixed.

Thanks for the review.

Regards,

Ninad

>
>
> Best regards,
> Krzysztof
>