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| author | Mugunthan V N <mugunthanvnm@ti.com> | 2013-02-11 13:52:20 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-13 01:15:10 +0400 |
| commit | d9ba8f9e6298af71ec1c1fd3d88c3ef68abd0ec3 (patch) | |
| tree | 933b4cdcb097e37e8eaea6970f791e862040bd0b /Documentation/devicetree | |
| parent | 9232b16df2167c8afcb89de39ee85f5091ebacff (diff) | |
| download | linux-d9ba8f9e6298af71ec1c1fd3d88c3ef68abd0ec3.tar.xz | |
driver: net: ethernet: cpsw: dual emac interface implementation
The CPSW switch can act as Dual EMAC by segregating the switch ports
using VLAN and port VLAN as per the TRM description in
14.3.2.10.2 Dual Mac Mode
Following CPSW components will be common for both the interfaces.
* Interrupt source is common for both eth interfaces
* Interrupt pacing is common for both interfaces
* Hardware statistics is common for all the ports
* CPDMA is common for both eth interface
* CPTS is common for both the interface and it should not be enabled on
both the interface as timestamping information doesn't contain port
information.
Constrains
* Reserved VID of One port should not be used in other interface which will
enable switching functionality
* Same VID must not be used in both the interface which will enable switching
functionality
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/cpsw.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 6ddd0286a9b7..ecfdf756d10f 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -24,6 +24,8 @@ Required properties: Optional properties: - ti,hwmods : Must be "cpgmac0" - no_bd_ram : Must be 0 or 1 +- dual_emac : Specifies Switch to act as Dual EMAC +- dual_emac_res_vlan : Specifies VID to be used to segregate the ports Note: "ti,hwmods" field is used to fetch the base address and irq resources from TI, omap hwmod data base during device registration. |