arm64: dts: imx8mm-evk: Add flexspi support

imx8mm-evk has a quad SPI-NOR flash on the flexspi bus.

Add support for it.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index 7c652b8..d85206f 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -12,6 +12,10 @@
        model = "FSL i.MX8MM EVK board";
        compatible = "fsl,imx8mm-evk", "fsl,imx8mm";
 
+       aliases {
+               spi0 = &flexspi;
+       };
+
        chosen {
                stdout-path = &uart2;
        };
@@ -135,6 +139,22 @@
        };
 };
 
+&flexspi {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_flexspi>;
+       status = "okay";
+
+       flash@0 {
+               reg = <0>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               spi-max-frequency = <80000000>;
+               spi-tx-bus-width = <4>;
+               spi-rx-bus-width = <4>;
+       };
+};
+
 &i2c1 {
        clock-frequency = <400000>;
        pinctrl-names = "default";
@@ -423,6 +443,17 @@
                >;
        };
 
+       pinctrl_flexspi: flexspigrp {
+               fsl,pins = <
+                       MX8MM_IOMUXC_NAND_ALE_QSPI_A_SCLK               0x1c2
+                       MX8MM_IOMUXC_NAND_CE0_B_QSPI_A_SS0_B            0x82
+                       MX8MM_IOMUXC_NAND_DATA00_QSPI_A_DATA0           0x82
+                       MX8MM_IOMUXC_NAND_DATA01_QSPI_A_DATA1           0x82
+                       MX8MM_IOMUXC_NAND_DATA02_QSPI_A_DATA2           0x82
+                       MX8MM_IOMUXC_NAND_DATA03_QSPI_A_DATA3           0x82
+               >;
+       };
+
        pinctrl_pmic: pmicirq {
                fsl,pins = <
                        MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3               0x41