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

From: Daniel Baluta

Date: Tue Feb 10 2026 - 09:20:15 EST


On Tue, Feb 10, 2026 at 12:49 PM Yanan Yang <yanan.yang@xxxxxxx> 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@xxxxxxx>

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