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This nor chip support OCT DTR mode. For the reset pin, since the nor chip side need 1.8v IO voltage for reset pin, but the IO expander side use 3.3v IO voltage, so to make circuit safe, need to config the pad as OPEN DRAIN. Signed-off-by: Haibo Chen --- arch/arm64/boot/dts/freescale/imx943-evk.dts | 34 ++++++++++++++++++++++++= ++++ 1 file changed, 34 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot= /dts/freescale/imx943-evk.dts index c8c3eff9df1a23c52e74bf2bc5d4ba543bb5a65b..19c02bd49cf5b0410b5d9f513ee= 279446ff79616 100644 --- a/arch/arm64/boot/dts/freescale/imx943-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts @@ -594,6 +594,22 @@ pinctrl_reg_usdhc2_vmmc: usdhc2regvmmcgrp { IMX94_PAD_SD2_RESET_B__GPIO4_IO27 0x31e >; }; + + pinctrl_xspi1: xspi1grp { + fsl,pins =3D < + IMX94_PAD_XSPI1_SCLK__XSPI1_A_SCLK 0x3fe + IMX94_PAD_XSPI1_SS0_B__XSPI1_A_SS0_B 0x3fe + IMX94_PAD_XSPI1_DATA0__XSPI1_A_DATA0 0x3fe + IMX94_PAD_XSPI1_DATA1__XSPI1_A_DATA1 0x3fe + IMX94_PAD_XSPI1_DATA2__XSPI1_A_DATA2 0x3fe + IMX94_PAD_XSPI1_DATA3__XSPI1_A_DATA3 0x3fe + IMX94_PAD_XSPI1_DATA4__XSPI1_A_DATA4 0x3fe + IMX94_PAD_XSPI1_DATA5__XSPI1_A_DATA5 0x3fe + IMX94_PAD_XSPI1_DATA6__XSPI1_A_DATA6 0x3fe + IMX94_PAD_XSPI1_DATA7__XSPI1_A_DATA7 0x3fe + IMX94_PAD_XSPI1_DQS__XSPI1_A_DQS 0x3fe + >; + }; }; =20 &usdhc1 { @@ -625,3 +641,21 @@ &wdog3 { fsl,ext-reset-output; status =3D "okay"; }; + +&xspi1 { + pinctrl-0 =3D <&pinctrl_xspi1>; + pinctrl-1 =3D <&pinctrl_xspi1>; + pinctrl-names =3D "default", "sleep"; + status =3D "okay"; + + mt35xu512aba: flash@0 { + compatible =3D "jedec,spi-nor"; + reg =3D <0>; + #address-cells =3D <1>; + #size-cells =3D <1>; + reset-gpios =3D <&pcal6416_i2c6_u50 15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAI= N)>; + spi-max-frequency =3D <200000000>; + spi-rx-bus-width =3D <8>; + spi-tx-bus-width =3D <8>; + }; +}; --=20 2.34.1