arm64: dts: marvell: mcbin: add support for i2c mux

The MACCHIATOBin board has a PCA9548 I2C mux for the SFP ports on
CP100 master I2C bus 1.  Add the DT description for it.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
index da13ab2..77f62e2 100644 (file)
--- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
@@ -121,6 +121,36 @@
        status = "okay";
 };
 
+&cpm_i2c1 {
+       clock-frequency = <100000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&cpm_i2c1_pins>;
+       status = "okay";
+
+       i2c-switch@70 {
+               compatible = "nxp,pca9548";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x70>;
+
+               sfpp0_i2c: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+               sfpp1_i2c: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+               };
+               sfp_1g_i2c: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+       };
+};
+
 &cpm_mdio {
        pinctrl-names = "default";
        pinctrl-0 = <&cpm_ge_mdio_pins>;
@@ -136,6 +166,10 @@
                marvell,pins = "mpp32", "mpp34";
                marvell,function = "ge";
        };
+       cpm_i2c1_pins: i2c1-pins {
+               marvell,pins = "mpp35", "mpp36";
+               marvell,function = "i2c1";
+       };
        cpm_i2c0_pins: i2c0-pins {
                marvell,pins = "mpp37", "mpp38";
                marvell,function = "i2c0";