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. This patch adds the DT structure describing the MUX in board dts.
Signed-off-by: Alex Marginean alexm.osslist@gmail.com --- arch/arm/dts/fsl-ls1028a-qds.dts | 55 ++++++++++++++++++++++++++++++-- 1 file changed, 52 insertions(+), 3 deletions(-)
diff --git a/arch/arm/dts/fsl-ls1028a-qds.dts b/arch/arm/dts/fsl-ls1028a-qds.dts index 94d0aa0f95..605a80456a 100644 --- a/arch/arm/dts/fsl-ls1028a-qds.dts +++ b/arch/arm/dts/fsl-ls1028a-qds.dts @@ -37,6 +37,58 @@
&i2c0 { status = "okay"; + + 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>; + }; + }; + }; };
&i2c1 { @@ -95,7 +147,4 @@
&mdio0 { status = "okay"; - qds_phy0: phy@5 { - reg = <5>; - }; };