MLK-20483 arm64: dts: Add lpspi2 and its slave dts files for imx8qxp

For lpspi test, add these two features, use lpspi2 without cs-gpio.
Still support spi-nor using lpspi0 with cs-gpio mode.

- fsl-imx8dx.dtsi:
	Add node to support lpspi2.
- fsl-imx8qxp-lpddr4-arm2-lpspi.dts:
	Add lpspi2 support for imx8qxp-lpddr4-arm2 board.
- fsl-imx8qxp-lpddr4-arm2-lpspi-slave.dts:
	Enable spi slave mode for lpspi2.

NOTE: lpspi2 of imx8qxp-lpddr4-arm2 uses the same pins with lpspi3 of
imx8qm-lpddr4-arm2 on Base Board.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8dx.dtsi b/arch/arm64/boot/dts/freescale/fsl-imx8dx.dtsi
index fa5a9a037249..1ab4b560f7a9 100644
--- a/arch/arm64/boot/dts/freescale/fsl-imx8dx.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-imx8dx.dtsi
@@ -2673,6 +2673,20 @@
 		status = "disabled";
 	};
 
+	lpspi2: lpspi@5a020000 {
+		compatible = "fsl,imx7ulp-spi";
+		reg = <0x0 0x5a020000 0x0 0x10000>;
+		interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		clocks = <&clk IMX8QXP_SPI2_CLK>,
+			 <&clk IMX8QXP_SPI2_IPG_CLK>;
+		clock-names = "per", "ipg";
+		assigned-clocks = <&clk IMX8QXP_SPI2_CLK>;
+		assigned-clock-rates = <20000000>;
+		power-domains = <&pd_dma_lpspi2>;
+		status = "disabled";
+	};
+
 	lpuart0: serial@5a060000 {
 		compatible = "fsl,imx8qm-lpuart";
 		reg = <0x0 0x5a060000 0x0 0x1000>;