diff options
author | Florian Fainelli <f.fainelli@gmail.com> | 2014-08-27 20:04:47 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2014-08-28 01:59:39 -0400 |
commit | 2ba1b163c9d5d716fb1061f3fb76832cc6eea37f (patch) | |
tree | 86192c8cc81e03f368265af36553b31cb4cd24de /Documentation/devicetree/bindings/net | |
parent | 3e8a72d1dae374cf6fc1dba97cec663585845ff9 (diff) |
net: phy: add generic UniMAC MDIO bus driver
Add a generic UniMAC MDIO bus driver and its Device Tree binding, which
can be used by the BCMGENET driver as-is, and the upcoming Starfighter 2
Ethernet switch MDIO bus controller.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r-- | Documentation/devicetree/bindings/net/broadcom-mdio-unimac.txt | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/broadcom-mdio-unimac.txt b/Documentation/devicetree/bindings/net/broadcom-mdio-unimac.txt new file mode 100644 index 000000000000..ab0bb4247d14 --- /dev/null +++ b/Documentation/devicetree/bindings/net/broadcom-mdio-unimac.txt | |||
@@ -0,0 +1,39 @@ | |||
1 | * Broadcom UniMAC MDIO bus controller | ||
2 | |||
3 | Required properties: | ||
4 | - compatible: should one from "brcm,genet-mdio-v1", "brcm,genet-mdio-v2", | ||
5 | "brcm,genet-mdio-v3", "brcm,genet-mdio-v4" or "brcm,unimac-mdio" | ||
6 | - reg: address and length of the regsiter set for the device, first one is the | ||
7 | base register, and the second one is optional and for indirect accesses to | ||
8 | larger than 16-bits MDIO transactions | ||
9 | - reg-names: name(s) of the register must be "mdio" and optional "mdio_indir_rw" | ||
10 | - #size-cells: must be 1 | ||
11 | - #address-cells: must be 0 | ||
12 | |||
13 | Optional properties: | ||
14 | - interrupts: must be one if the interrupt is shared with the Ethernet MAC or | ||
15 | Ethernet switch this MDIO block is integrated from, or must be two, if there | ||
16 | are two separate interrupts, first one must be "mdio done" and second must be | ||
17 | for "mdio error" | ||
18 | - interrupt-names: must be "mdio_done_error" when there is a share interrupt fed | ||
19 | to this hardware block, or must be "mdio_done" for the first interrupt and | ||
20 | "mdio_error" for the second when there are separate interrupts | ||
21 | |||
22 | Child nodes of this MDIO bus controller node are standard Ethernet PHY device | ||
23 | nodes as described in Documentation/devicetree/bindings/net/phy.txt | ||
24 | |||
25 | Example: | ||
26 | |||
27 | mdio@403c0 { | ||
28 | compatible = "brcm,unimac-mdio"; | ||
29 | reg = <0x403c0 0x8 0x40300 0x18>; | ||
30 | reg-names = "mdio", "mdio_indir_rw"; | ||
31 | #size-cells = <1>; | ||
32 | #address-cells = <0>; | ||
33 | |||
34 | ... | ||
35 | phy@0 { | ||
36 | compatible = "ethernet-phy-ieee802.3-c22"; | ||
37 | reg = <0>; | ||
38 | }; | ||
39 | }; | ||