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

On 2/10/2026 11:51 PM, Frank Li wrote:

On Tue, Feb 10, 2026 at 07:47:55PM +0900, Yanan Yang wrote:

quoted

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)

Look like it is very similar with imx91-11x11-frdm boards.

Can you create common dtsi for both boards

imx91-11x11-fdrm-common.dtsi

then imx91-11x11-fdrm-s.dts and imx91-11x11-frdm.dts included
imx91-11x11-fdrm-common.dtsi.

You can refer below method
https://lore.kernel.org/imx/20260204083551.2867263-1-sherry.sun@nxp.com/ (local)

Frank

Hi Frank,

I think the two boards are totally different.
They have different PMIC, no EMMC for FRDM-IMX91S and totally different pin assignment.
So if we create a common dtsi, there will be not much duplicate code can put in.

Regards,
Joseph