linux-kernel - Re: [PATCH 0/3] arm: fix imx

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Message-ID: <fdab2ea2-824b-4b52-b880-0b097fd29086@gmail.com>
Date: Mon, 12 May 2025 20:09:01 +0200
From: Denis Benato <benato.denis96@...il.com>
To: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Russell King <linux@...linux.org.uk>, Shawn Guo <shawnguo@...nel.org>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, linux-arm-kernel@...ts.infradead.org,
 imx@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] arm: fix imx_* defconfig


On 5/12/25 08:03, Sascha Hauer wrote:
> Hi Denis,
>
> On Sat, May 10, 2025 at 03:18:03AM +0200, Denis Benato wrote:
>> Compiling the kernel using affected imx defconfigs lead
>> to a hard CPU crash that reaches a state where each register,
>> including PC ends up in 0xDEADBEEF.
>>
>> That is because the SoC support depending on CONFIG_ARCH_MXC
>> gets disabled since CONFIG_ARCH_NXP is not defined while
>> said feature depends on it.
>>
>> The default arm defconfig is unaffected as it defines
>> CONFIG_ARCH_NXP=y correctly as excepted.
>>
>> These patches solve the crash causing my confusion:
>> https://lore.kernel.org/all/c84e8246-8104-4409-8d95-389d61bc07af@gmail.com
> In this mail you say you want to start a ARMv8 i.MX8MM board. The
> configs you are changing are for old 32bit ARMv4-7 SoCs.
> arch/arm64/configs/defconfig is for you.

Hello and thanks for both of your answers.


Yes, I have made the mistake of using that defconfig for arm while building an arm64 kernel.


I am sorry and thank you both for correcting me.

Please, ignore these patches.

Denis B.

> Sascha
>
>> Denis Benato (3):
>>   ARM: imx_v4_v5_defconfig: define CONFIG_ARCH_NXP
>>   ARM: imx_v6_v7_defconfig: define CONFIG_ARCH_NXP
>>   ARM: imxrt_defconfig: define CONFIG_ARCH_NXP
>>
>>  arch/arm/configs/imx_v4_v5_defconfig | 1 +
>>  arch/arm/configs/imx_v6_v7_defconfig | 1 +
>>  arch/arm/configs/imxrt_defconfig     | 1 +
>>  3 files changed, 3 insertions(+)
>>
>> -- 
>> 2.49.0
>>
>>