linux-kernel - Re: [PATCH v5 2/2] arm64: dts: freescale: add NXP FRDM-IMX91S board support

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Message-ID: <CAEnQRZCXwJUz5rw0dWP_rVbjw=ianqADbjXaX=fPvmMY+C6KRg@mail.gmail.com>
Date: Tue, 10 Feb 2026 16:22:51 +0200
From: Daniel Baluta <daniel.baluta@...il.com>
To: Yanan Yang <yanan.yang@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, qijian.guo@....com, 
	justin.jiang@....com, Lei Xu <lei.xu@....com>, Xiaofeng Wei <xiaofeng.wei@....com>
Subject: Re: [PATCH v5 2/2] arm64: dts: freescale: add NXP FRDM-IMX91S board support

On Tue, Feb 10, 2026 at 12:49 PM Yanan Yang <yanan.yang@....com> wrote:
>
> Add DeviceTree support for the NXP FRDM-IMX91S development board based
> on the i.MX91 SoC. FRDM-IMX91S is a cost-optimized variant of FRDM-IMX91
> and differs in memory, storage, Ethernet, and PMIC configuration:
>
> - 512MB LPDDR4 (FRDM-IMX91 uses 1GB)
> - 256MB FlexSPI-NAND (FRDM-IMX91 uses 8GB eMMC)
> - Single GbE port (FRDM-IMX91 has dual GbE)
> - PMIC PF9453 (FRDM-IMX91 uses PCA9451A)
>
> This DT enables:
> - ADC1
> - UART1 and UART5
> - I2C bus and children nodes
> - USB and related nodes
> - uSDHC1 and uSDHC2
> - FlexSPI NAND flash
> - Watchdog3
> - Ethernet (eqos)
> - FlexCAN
> - MQS
>
> Link: https://www.nxp.com/design/design-center/development-boards-and-designs/FRDM-IMX91S
> (FRDM-IMX91S board page)
> Link: https://www.nxp.com/design/design-center/development-boards-and-designs/FRDM-IMX91
> (FRDM-IMX91 board page)


Tested-by: Daniel Baluta <daniel.baluta@....com>

Used your patches on top of linux-next 20260209 and managed to boot the board
using serial downloader and rootfs via nfs.