projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| be4e119f JB |
1 | SMSC/MicroChip LAN9303 three port ethernet switch |
| 2 | ------------------------------------------------- | |
| 3 | ||
| 4 | Required properties: | |
| 5 | ||
| dc700583 JB |
6 | - compatible: should be |
| 7 | - "smsc,lan9303-i2c" for I2C managed mode | |
| 8 | or | |
| 9 | - "smsc,lan9303-mdio" for mdio managed mode | |
| be4e119f JB |
10 | |
| 11 | Optional properties: | |
| 12 | ||
| 13 | - reset-gpios: GPIO to be used to reset the whole device | |
| 14 | - reset-duration: reset duration in milliseconds, defaults to 200 ms | |
| 15 | ||
| 16 | Subnodes: | |
| 17 | ||
| 18 | The integrated switch subnode should be specified according to the binding | |
| 19 | described in dsa/dsa.txt. The CPU port of this switch is always port 0. | |
| 20 | ||
| 21 | Note: always use 'reg = <0/1/2>;' for the three DSA ports, even if the device is | |
| 22 | configured to use 1/2/3 instead. This hardware configuration will be | |
| 23 | auto-detected and mapped accordingly. | |
| 24 | ||
| 25 | Example: | |
| 26 | ||
| 27 | I2C managed mode: | |
| 28 | ||
| 29 | master: masterdevice@X { | |
| be4e119f JB |
30 | |
| 31 | fixed-link { /* RMII fixed link to LAN9303 */ | |
| 32 | speed = <100>; | |
| 33 | full-duplex; | |
| 34 | }; | |
| 35 | }; | |
| 36 | ||
| 37 | switch: switch@a { | |
| 38 | compatible = "smsc,lan9303-i2c"; | |
| 39 | reg = <0xa>; | |
| be4e119f JB |
40 | reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>; |
| 41 | reset-duration = <200>; | |
| 42 | ||
| 43 | ports { | |
| 44 | #address-cells = <1>; | |
| 45 | #size-cells = <0>; | |
| 46 | ||
| 47 | port@0 { /* RMII fixed link to master */ | |
| 48 | reg = <0>; | |
| 49 | label = "cpu"; | |
| 50 | ethernet = <&master>; | |
| 51 | }; | |
| 52 | ||
| 53 | port@1 { /* external port 1 */ | |
| 54 | reg = <1>; | |
| 55 | label = "lan1; | |
| 56 | }; | |
| 57 | ||
| 58 | port@2 { /* external port 2 */ | |
| 59 | reg = <2>; | |
| 60 | label = "lan2"; | |
| 61 | }; | |
| 62 | }; | |
| 63 | }; | |
| dc700583 JB |
64 | |
| 65 | MDIO managed mode: | |
| 66 | ||
| 67 | master: masterdevice@X { | |
| dc700583 JB |
68 | phy-handle = <&switch>; |
| 69 | ||
| 70 | mdio { | |
| 71 | #address-cells = <1>; | |
| 72 | #size-cells = <0>; | |
| 73 | ||
| 74 | switch: switch-phy@0 { | |
| 75 | compatible = "smsc,lan9303-mdio"; | |
| 76 | reg = <0>; | |
| 77 | reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>; | |
| 78 | reset-duration = <100>; | |
| 79 | ||
| 80 | ports { | |
| 81 | #address-cells = <1>; | |
| 82 | #size-cells = <0>; | |
| 83 | ||
| 84 | port@0 { | |
| 85 | reg = <0>; | |
| 86 | label = "cpu"; | |
| 87 | ethernet = <&master>; | |
| 88 | }; | |
| 89 | ||
| 90 | port@1 { /* external port 1 */ | |
| 91 | reg = <1>; | |
| 92 | label = "lan1; | |
| 93 | }; | |
| 94 | ||
| 95 | port@2 { /* external port 2 */ | |
| 96 | reg = <2>; | |
| 97 | label = "lan2"; | |
| 98 | }; | |
| 99 | }; | |
| 100 | }; | |
| 101 | }; | |
| 102 | }; |