diff options
Diffstat (limited to 'doc/device-tree-bindings')
| -rw-r--r-- | doc/device-tree-bindings/net/fsl-tsec-phy.txt | 4 | ||||
| -rw-r--r-- | doc/device-tree-bindings/net/mdio-mux-reg.txt | 82 | ||||
| -rw-r--r-- | doc/device-tree-bindings/power/ti,sci-pm-domain.txt | 11 |
3 files changed, 93 insertions, 4 deletions
diff --git a/doc/device-tree-bindings/net/fsl-tsec-phy.txt b/doc/device-tree-bindings/net/fsl-tsec-phy.txt index c5bf48c3cb..59989e3b09 100644 --- a/doc/device-tree-bindings/net/fsl-tsec-phy.txt +++ b/doc/device-tree-bindings/net/fsl-tsec-phy.txt @@ -28,13 +28,13 @@ device that exists on this bus, a PHY node should be created. Required properties: - compatible : Should define the compatible device type for the - mdio. Currently supported string/device is "fsl,tsec-mdio". + mdio. Currently supported string/device is "fsl,etsec2-mdio". - reg : Offset and length of the register set for the device Example: mdio@24520 { - compatible = "fsl,tsec-mdio"; + compatible = "fsl,etsec2-mdio"; reg = <0x24520 0x20>; ethernet-phy@0 { diff --git a/doc/device-tree-bindings/net/mdio-mux-reg.txt b/doc/device-tree-bindings/net/mdio-mux-reg.txt new file mode 100644 index 0000000000..0ac34dc423 --- /dev/null +++ b/doc/device-tree-bindings/net/mdio-mux-reg.txt @@ -0,0 +1,82 @@ +Device tree structures used by register based MDIO muxes is described here. +This binding is based on reg-mux.txt binding in Linux and is currently used by +mdio-mux-i2creg driver in U-Boot. + +Required properties: +#mux-control-cells = <1> indicates how many registers are used for mux + selection. mux-reg-mask property described below must + include this number of pairs. +mux-reg-masks = <reg mask> describes pairs of register offset and register mask. + Register bits enabled in mask are set to the selection + value defined in reg property of child MDIOs to control + selection. +Properties described in mdio-mux.txt also apply. + +Example structure, used on Freescale LS1028A QDS board: + +&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>; + + /* on-board 1G RGMII PHY */ + qds_phy0: phy@5 { + reg = <5>; + }; + }; + /* card slot 1 */ + mdio@40 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x40>; + /* VSC8234 1G SGMII card */ + sgmii_port0: phy@1c { + reg = <0x1c>; + }; + }; + /* card slot 2 */ + mdio@50 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x50>; + }; + /* card slot 3 */ + mdio@60 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x60>; + }; + /* card slot 4 */ + mdio@70 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x70>; + }; + }; + }; +}; + +/* Parent MDIO, defined in SoC .dtsi file, just enabled here */ +&mdio0 { + status = "okay"; +}; diff --git a/doc/device-tree-bindings/power/ti,sci-pm-domain.txt b/doc/device-tree-bindings/power/ti,sci-pm-domain.txt index 0e190e20fe..72d9fbc833 100644 --- a/doc/device-tree-bindings/power/ti,sci-pm-domain.txt +++ b/doc/device-tree-bindings/power/ti,sci-pm-domain.txt @@ -17,8 +17,15 @@ child of the sysfw node. Required Properties: -------------------- - compatible: Must be "ti,sci-pm-domain" -- #power-domain-cells: Must be 1 so that an id can be provided in each - device node. +- #power-domain-cells: Can be one of the following: + 1: Containing the device id of each node + 2: First entry should be device id + Second entry should be one of the floowing: + TI_SCI_PD_EXCLUSIVE: To allow device to be + exclusively controlled by + the requesting hosts. + TI_SCI_PD_SHARED: To allow device to be shared + by multiple hosts. Example (AM65x): ---------------- |