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

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Message-ID: <aCGPMvP6F6r-57KF@pengutronix.de>
Date: Mon, 12 May 2025 08:03:30 +0200
From: Sascha Hauer <s.hauer@...gutronix.de>
To: Denis Benato <benato.denis96@...il.com>
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

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.

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
> 
> 

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