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| author | Tony Lindgren <tony@atomide.com> | 2018-08-29 08:00:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-02 13:52:13 -0700 |
| commit | 10d7fac4c52618d94a42d701d28f114147291ecc (patch) | |
| tree | 5d4dab7256511bb35a582fcdd2e172a585d3620f /Documentation | |
| parent | c60e06c3e056f88d5c9bfffcb29dc8aee0b3827b (diff) | |
| download | lwn-10d7fac4c52618d94a42d701d28f114147291ecc.tar.gz lwn-10d7fac4c52618d94a42d701d28f114147291ecc.zip | |
dt-bindings: net: cpsw: Document cpsw-phy-sel usage but prefer phandle
The current cpsw usage for cpsw-phy-sel is undocumented but is used for
all the boards using cpsw. And cpsw-phy-sel is not really a child of
the cpsw device, it lives in the system control module instead.
Let's document the existing usage, and improve it a bit where we prefer
to use a phandle instead of a child device for it. That way we can
properly describe the hardware in dts files for things like genpd.
Cc: devicetree@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/cpsw.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 41089369f891..b3acebe08eb0 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -19,6 +19,10 @@ Required properties: - slaves : Specifies number for slaves - active_slave : Specifies the slave to use for time stamping, ethtool and SIOCGMIIPHY +- cpsw-phy-sel : Specifies the phandle to the CPSW phy mode selection + device. See also cpsw-phy-sel.txt for it's binding. + Note that in legacy cases cpsw-phy-sel may be + a child device instead of a phandle. Optional properties: - ti,hwmods : Must be "cpgmac0" @@ -75,6 +79,7 @@ Examples: cpts_clock_mult = <0x80000000>; cpts_clock_shift = <29>; syscon = <&cm>; + cpsw-phy-sel = <&phy_sel>; cpsw_emac0: slave@0 { phy_id = <&davinci_mdio>, <0>; phy-mode = "rgmii-txid"; @@ -103,6 +108,7 @@ Examples: cpts_clock_mult = <0x80000000>; cpts_clock_shift = <29>; syscon = <&cm>; + cpsw-phy-sel = <&phy_sel>; cpsw_emac0: slave@0 { phy_id = <&davinci_mdio>, <0>; phy-mode = "rgmii-txid"; |