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author | Andrew Turner <andrew@FreeBSD.org> | 2016-01-28 20:21:15 +0000 |
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committer | Andrew Turner <andrew@FreeBSD.org> | 2016-01-28 20:21:15 +0000 |
commit | 235ad806ee815395bce54dc1b0ce1c06cd29b44a (patch) | |
tree | 41cbd9055ad0d6dfa04377df1bb51f3c3f3948e2 /Bindings/net/dsa/dsa.txt | |
parent | da75c2cc5808a45edc76752ba495dcc5dcd4346c (diff) | |
download | src-235ad806ee815395bce54dc1b0ce1c06cd29b44a.tar.gz src-235ad806ee815395bce54dc1b0ce1c06cd29b44a.zip |
Import updated device-tree files from:vendor/device-tree/ianc-afaecb70
git://xenbits.xen.org/people/ianc/device-tree-rebasing.git
@afaecb70e7ebb983c86d5eb45ff952e9af79c462
Notes
Notes:
svn path=/vendor/device-tree/dist/; revision=295011
svn path=/vendor/device-tree/ianc-afaecb70/; revision=295013; tag=vendor/device-tree/ianc-afaecb70
Diffstat (limited to 'Bindings/net/dsa/dsa.txt')
-rw-r--r-- | Bindings/net/dsa/dsa.txt | 45 |
1 files changed, 38 insertions, 7 deletions
diff --git a/Bindings/net/dsa/dsa.txt b/Bindings/net/dsa/dsa.txt index e124847443f8..5fdbbcdf8c4b 100644 --- a/Bindings/net/dsa/dsa.txt +++ b/Bindings/net/dsa/dsa.txt @@ -19,7 +19,9 @@ the parent DSA node. The maximum number of allowed child nodes is 4 (DSA_MAX_SWITCHES). Each of these switch child nodes should have the following required properties: -- reg : Describes the switch address on the MII bus +- reg : Contains two fields. The first one describes the + address on the MII bus. The second is the switch + number that must be unique in cascaded configurations - #address-cells : Must be 1 - #size-cells : Must be 0 @@ -29,6 +31,8 @@ A switch child node has the following optional property: switch. Must be set if the switch can not detect the presence and/or size of a connected EEPROM, otherwise optional. +- reset-gpios : phandle and specifier to a gpio line connected to + reset pin of the switch chip. A switch may have multiple "port" children nodes @@ -42,9 +46,10 @@ Note that a port labelled "dsa" will imply checking for the uplink phandle described below. Optionnal property: -- link : Should be a phandle to another switch's DSA port. +- link : Should be a list of phandles to another switch's DSA port. This property is only used when switches are being - chained/cascaded together. + chained/cascaded together. This port is used as outgoing port + towards the phandle port, which can be more than one hop away. - phy-handle : Phandle to a PHY on an external MDIO bus, not the switch internal one. See @@ -56,6 +61,10 @@ Optionnal property: Documentation/devicetree/bindings/net/ethernet.txt for details. +- mii-bus : Should be a phandle to a valid MDIO bus device node. + This mii-bus will be used in preference to the + global dsa,mii-bus defined above, for this switch. + Optional subnodes: - fixed-link : Fixed-link subnode describing a link to a non-MDIO managed entity. See @@ -94,10 +103,11 @@ Example: label = "cpu"; }; - switch0uplink: port@6 { + switch0port6: port@6 { reg = <6>; label = "dsa"; - link = <&switch1uplink>; + link = <&switch1port0 + &switch2port0>; }; }; @@ -105,11 +115,32 @@ Example: #address-cells = <1>; #size-cells = <0>; reg = <17 1>; /* MDIO address 17, switch 1 in tree */ + mii-bus = <&mii_bus1>; + reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>; + + switch1port0: port@0 { + reg = <0>; + label = "dsa"; + link = <&switch0port6>; + }; + switch1port1: port@1 { + reg = <1>; + label = "dsa"; + link = <&switch2port1>; + }; + }; + + switch@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <18 2>; /* MDIO address 18, switch 2 in tree */ + mii-bus = <&mii_bus1>; - switch1uplink: port@0 { + switch2port0: port@0 { reg = <0>; label = "dsa"; - link = <&switch0uplink>; + link = <&switch1port1 + &switch0port6>; }; }; }; |