[PATCH 0/2] Add xspi device node and mt35xu512aba spi nor device support on imx943-evk board

[PATCH 0/2] Add xspi device node and mt35xu512aba spi nor device support on imx943-evk board

[Haibo Chen]

xspi is a new flexible SPI host controller in imx94. The driver
already merged into linux-next, refer to the following link:

https://lore.kernel.org/r/20251216-xspi-v7-0-282525220979@nxp.com

The first patch add the xspi device node in imx94.dtsi.
Second patch add mt35xu512aba spi support on imx943-evk board.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
Haibo Chen (2):
      arm64: dts: imx94: add xspi device node
      arm64: dts: imx94: add mt35xu512aba spi nor support

 arch/arm64/boot/dts/freescale/imx94.dtsi     | 34 +++++++++++++++++++++++++++-
 arch/arm64/boot/dts/freescale/imx943-evk.dts | 34 ++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+), 1 deletion(-)
---
base-commit: cc3aa43b44bdb43dfbac0fcb51c56594a11338a8
change-id: 20251223-imx943-xspi-dts-68da1c32534e

Best regards,
-- 
Haibo Chen <haibo.chen@nxp.com>

[PATCH 1/2] arm64: dts: imx94: add xspi device node

[Haibo Chen]

imx94 has two xspi, add these device nodes.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx94.dtsi | 34 +++++++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx94.dtsi b/arch/arm64/boot/dts/freescale/imx94.dtsi
index 73184f03f8a3e134abc03dbd22ea24eff17be79b..96dd87800c8b500f2a885c1c1726e314b839fa8a 100644
--- a/arch/arm64/boot/dts/freescale/imx94.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx94.dtsi
@@ -629,7 +629,7 @@ aips3: bus@42800000 {
 			compatible = "fsl,aips-bus", "simple-bus";
 			reg = <0 0x42800000 0 0x800000>;
 			ranges = <0x42800000 0x0 0x42800000 0x800000>,
-				 <0x28000000 0x0 0x28000000 0x1000000>;
+				 <0x24000000 0x0 0x24000000 0xc000000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 
@@ -785,6 +785,38 @@ mu17: mailbox@42b60000 {
 				#mbox-cells = <2>;
 				status = "disabled";
 			};
+
+			xspi1: spi@42b90000 {
+				compatible = "nxp,imx94-xspi";
+				reg = <0x42b90000 0x50000>, <0x28000000 0x08000000>;
+				reg-names = "base", "mmap";
+				interrupts = <GIC_SPI 390 IRQ_TYPE_LEVEL_HIGH>,		// EENV0
+					     <GIC_SPI 391 IRQ_TYPE_LEVEL_HIGH>,		// EENV1
+					     <GIC_SPI 392 IRQ_TYPE_LEVEL_HIGH>,		// EENV2
+					     <GIC_SPI 393 IRQ_TYPE_LEVEL_HIGH>,		// EENV3
+					     <GIC_SPI 394 IRQ_TYPE_LEVEL_HIGH>;		// EENV4
+				#address-cells = <1>;
+				#size-cells = <0>;
+				clocks = <&scmi_clk IMX94_CLK_XSPI1>;
+				clock-names = "per";
+				status = "disabled";
+			};
+
+			xspi2: spi@42be0000 {
+				compatible = "nxp,imx94-xspi";
+				reg = <0x42be0000 0x50000>, <0x24000000 0x04000000>;
+				reg-names = "base", "mmap";
+				interrupts = <GIC_SPI 395 IRQ_TYPE_LEVEL_HIGH>,		// EENV0
+					     <GIC_SPI 396 IRQ_TYPE_LEVEL_HIGH>,		// EENV1
+					     <GIC_SPI 397 IRQ_TYPE_LEVEL_HIGH>,		// EENV2
+					     <GIC_SPI 398 IRQ_TYPE_LEVEL_HIGH>,		// EENV3
+					     <GIC_SPI 399 IRQ_TYPE_LEVEL_HIGH>;		// EENV4
+				#address-cells = <1>;
+				#size-cells = <0>;
+				clocks = <&scmi_clk IMX94_CLK_XSPI2>;
+				clock-names = "per";
+				status = "disabled";
+			};
 		};
 
 		gpio2: gpio@43810000 {

-- 
2.34.1

[PATCH 2/2] arm64: dts: imx94: add mt35xu512aba spi nor support

[Haibo Chen]

Add mt35xu512aba spi nor support on imx943-evk board.
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 <haibo.chen@nxp.com>
---
 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..19c02bd49cf5b0410b5d9f513ee279446ff79616 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 = <
+			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
+		>;
+	};
 };
 
 &usdhc1 {
@@ -625,3 +641,21 @@ &wdog3 {
 	fsl,ext-reset-output;
 	status = "okay";
 };
+
+&xspi1 {
+	pinctrl-0 = <&pinctrl_xspi1>;
+	pinctrl-1 = <&pinctrl_xspi1>;
+	pinctrl-names = "default", "sleep";
+	status = "okay";
+
+	mt35xu512aba: flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reset-gpios = <&pcal6416_i2c6_u50 15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
+		spi-max-frequency = <200000000>;
+		spi-rx-bus-width = <8>;
+		spi-tx-bus-width = <8>;
+	};
+};

-- 
2.34.1

Re: [PATCH 0/2] Add xspi device node and mt35xu512aba spi nor device support on imx943-evk board

[Shawn Guo]

On Tue, Dec 23, 2025 at 05:05:55PM +0800, Haibo Chen wrote:
> Haibo Chen (2):
>       arm64: dts: imx94: add xspi device node
>       arm64: dts: imx94: add mt35xu512aba spi nor support

Applied both, thanks!