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arm: dts: ls1028a-qds: define the MDIO MUX

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Add the device-tree structure describing the MUX in board dts.

QDS board has an on-board RGMII PHY and 4 slots for extension cards.
All these can be accessed over MDIO through a MDIO MUX controlled
over I2C.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Alex Marginean 2019-08-07 19:30:03 +03:00 committed by Priyanka Jain
parent f002b3fa8d
commit a3ce94b602
1 changed files with 53 additions and 3 deletions
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56
arch/arm/dts/fsl-ls1028a-qds.dts
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@ -33,12 +33,65 @@
&esdhc1 {
status = "okay";
};
&i2c0 {
status = "okay";
u-boot,dm-pre-reloc;
fpga@66 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "simple-mfd";
reg = <0x66>;
mux-mdio@54 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "mdio-mux-i2creg";
reg = <0x54>;
#mux-control-cells = <1>;
mux-reg-masks = <0x54 0xf0>;
mdio-parent-bus = <&mdio0>;
/* on-board MDIO with a single RGMII PHY */
mdio@00 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x00>;
qds_phy0: phy@5 {
reg = <5>;
};
};
/* slot 1 */
slot1: mdio@40 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40>;
};
/* slot 2 */
slot2: mdio@50 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x50>;
};
/* slot 3 */
slot3: mdio@60 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x60>;
};
/* slot 4 */
slot4: mdio@70 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x70>;
};
};
};
i2c-mux@77 {
compatible = "nxp,pca9547";
reg = <0x77>;
@ -108,7 +161,4 @@
&mdio0 {
status = "okay";
qds_phy0: phy@5 {
reg = <5>;
};
};