Re: [PATCH v4 2/2] arm64: dts: freescale: add NXP FRDM-IMX91S board support

[Yanan Yang]

On Fri, Jan 23, 2026 at 10:29:16AM -0500, Frank Li wrote:
> On Fri, Jan 23, 2026 at 03:42:00PM +0900, Yanan Yang 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)
> >
> > Co-developed-by: Lei Xu <lei.xu@xxxxxxx>
> > Signed-off-by: Lei Xu <lei.xu@xxxxxxx>
> > Co-developed-by: Xiaofeng Wei <xiaofeng.wei@xxxxxxx>
> > Signed-off-by: Xiaofeng Wei <xiaofeng.wei@xxxxxxx>
> > Signed-off-by: Yanan Yang <yanan.yang@xxxxxxx>
> >
> > ---
> ...
> > +
> > +&iomuxc {
> > +	bootph-pre-ram;
> > +	bootph-some-ram;
> > +
> > +	pinctrl_eqos: eqosgrp {
> > +		fsl,pins = <
> > +			MX91_PAD_ENET1_MDC__ENET1_MDC                           0x57e
> > +			MX91_PAD_ENET1_MDIO__ENET_QOS_MDIO                      0x57e
> > +			MX91_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0                  0x57e
> > +			MX91_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1                  0x57e
> > +			MX91_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2                  0x57e
> > +			MX91_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3                  0x57e
> > +			MX91_PAD_ENET1_RXC__ENET_QOS_RGMII_RXC                  0x5fe
> > +			MX91_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL            0x57e
> > +			MX91_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0                  0x57e
> > +			MX91_PAD_ENET1_TD1__ENET1_RGMII_TD1                     0x57e
> > +			MX91_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2                  0x57e
> > +			MX91_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3                  0x57e
> > +			MX91_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK  0x5fe
> > +			MX91_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL            0x57e
> > +		>;
> > +	};
> 
> Plese usb tab before number.
> 
> Frank

Will fix it in v5, thanks

> > +
> ...
> > +&wdog3 {
> > +	pinctrl-0 = <&pinctrl_wdog>;
> > +	pinctrl-names = "default";
> > +	fsl,ext-reset-output;
> > +	status = "okay";
> > +};
> >
> > --
> > 2.43.0
> >