[PATCH 08/13] ARM: imx: remove nommu support

Fabio Estevam festevam at gmail.com
Wed Sep 9 13:21:24 PDT 2026


On Tue, Sep 8, 2026 at 12:29 PM Arnd Bergmann <arnd at kernel.org> wrote:
>
> From: Arnd Bergmann <arnd at arndb.de>
>
> The i.MX platform has grown support for three separate product
> lines using Cortex-M based microcontrollers over the years:
>
>  - i.MX RT1050, a high-end microcontroller
>  - Vybrid vf610 suppors running Linux on either the Cortex-A5
>    CPU or the Cortex-M4 MCU
>  - i.MX7D similarly can run Linux on the Cortex-A7 or the
>    Cortex-M4
>
> There are no known upstream users of any of those three, so
> drop support and simplify the platform to assume that an MMU
> is present.
>
> Cc: Frank Li <Frank.Li at nxp.com>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
> Cc: Fabio Estevam <festevam at gmail.com>
> Cc: Stefan Agner <stefan at agner.ch>
> Cc: Rob Herring <robh at kernel.org>
> Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
> Cc: Conor Dooley <conor+dt at kernel.org>
> Cc: Vladimir Zapolskiy <vz at mleia.com>
> Cc: Giulio Benetti <giulio.benetti at benettiengineering.com>
> Cc: devicetree at vger.kernel.org
> Cc: imx at lists.linux.dev
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> ---
>  arch/arm/boot/dts/nxp/imx/Makefile            |    2 -
>  arch/arm/boot/dts/nxp/imx/imxrt1050-evk.dts   |   72 -
>  arch/arm/boot/dts/nxp/imx/imxrt1050-pinfunc.h |  993 -----------
>  arch/arm/boot/dts/nxp/imx/imxrt1050.dtsi      |  160 --
>  arch/arm/boot/dts/nxp/imx/imxrt1170-pinfunc.h | 1561 -----------------
>  arch/arm/boot/dts/nxp/vf/Makefile             |    2 -
>  arch/arm/boot/dts/nxp/vf/vf610m4-colibri.dts  |   61 -
>  arch/arm/boot/dts/nxp/vf/vf610m4-cosmic.dts   |   88 -
>  arch/arm/boot/dts/nxp/vf/vf610m4.dtsi         |   61 -
>  arch/arm/configs/imxrt_defconfig              |   35 -
>  arch/arm/configs/vf610m4_defconfig            |   39 -
>  arch/arm/mach-imx/Kconfig                     |   27 +-
>  arch/arm/mach-imx/Makefile                    |    3 -
>  arch/arm/mach-imx/mach-imx7d-cm4.c            |   18 -
>  arch/arm/mach-imx/mach-imxrt.c                |   19 -

The imxrt1050-evk dts is used in U-Boot.

Adding Jesse and Giulio, who use this platform in U-Boot.



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