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Groups > linux.kernel > #1502919
| From | Mugunthan V N <mugunthanvnm@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v4 1/4] net: phy: dp83867: Add documentation for optional impedance control |
| Date | 2016-10-18 13:30 +0200 |
| Message-ID | <stAKL-WC-47@gated-at.bofh.it> (permalink) |
| References | <stAKK-WC-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Add documention of ti,min-output-impedance and ti,max-output-impedance which can be used to correct MAC impedance mismatch using phy extended registers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> --- Documentation/devicetree/bindings/net/ti,dp83867.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt index 5d21141..85bf945 100644 --- a/Documentation/devicetree/bindings/net/ti,dp83867.txt +++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt @@ -9,6 +9,18 @@ Required properties: - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h for applicable values +Optional property: + - ti,min-output-impedance - MAC Interface Impedance control to set + the programmable output impedance to + minimum value (35 ohms). + - ti,max-output-impedance - MAC Interface Impedance control to set + the programmable output impedance to + maximum value (70 ohms). + +Note: ti,min-output-impedance and ti,max-output-impedance are mutually + exclusive. When both properties are present ti,max-output-impedance + takes precedence. + Default child nodes are standard Ethernet PHY device nodes as described in Documentation/devicetree/bindings/net/phy.txt -- 2.10.1.445.g3cdd5d1
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[PATCH v4 0/4] add support for impedance control for TI dp83867 phy and fix 2nd ethernet on dra72 rev C evm Mugunthan V N <mugunthanvnm@ti.com> - 2016-10-18 13:30 +0200 [PATCH v4 3/4] ARM: dts: dra72-evm-revc: add phy impedance settings Mugunthan V N <mugunthanvnm@ti.com> - 2016-10-18 13:30 +0200 [PATCH v4 1/4] net: phy: dp83867: Add documentation for optional impedance control Mugunthan V N <mugunthanvnm@ti.com> - 2016-10-18 13:30 +0200 Re: [PATCH v4 0/4] add support for impedance control for TI dp83867 phy and fix 2nd ethernet on dra72 rev C evm David Miller <davem@davemloft.net> - 2016-10-18 16:50 +0200
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