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| author | Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2015-01-16 12:47:21 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-16 22:24:21 -0500 |
| commit | 8fdb1a09e1568062f6c434e3e828630950b7e16a (patch) | |
| tree | 3f96c0132ba381392ad55f6385a36e71567c0061 /Documentation | |
| parent | 82a19035d000c8b4fd7d6f61b614f63dec75d389 (diff) | |
| download | linux-8fdb1a09e1568062f6c434e3e828630950b7e16a.tar.bz2 | |
amd-xgbe-phy: Allow certain PHY settings to be set by UEFI
Certain PHY settings need to be configurable by UEFI depending on the
platform being used. Add new device tree / ACPI properties that, if
present, will override the pre-determined values currently used.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/amd-xgbe-phy.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt index d54fe1af0325..33df3932168e 100644 --- a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt +++ b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt @@ -16,6 +16,18 @@ Optional properties: 0 - 1GbE and 10GbE (default) 1 - 2.5GbE and 10GbE +The following optional properties are represented by an array with each +value corresponding to a particular speed. The first array value represents +the setting for the 1GbE speed, the second value for the 2.5GbE speed and +the third value for the 10GbE speed. All three values are required if the +property is used. +- amd,serdes-blwc: Baseline wandering correction enablement + 0 - Off + 1 - On +- amd,serdes-cdr-rate: CDR rate speed selection +- amd,serdes-pq-skew: PQ (data sampling) skew +- amd,serdes-tx-amp: TX amplitude boost + Example: xgbe_phy@e1240800 { compatible = "amd,xgbe-phy-seattle-v1a", "ethernet-phy-ieee802.3-c45"; @@ -25,4 +37,8 @@ Example: interrupt-parent = <&gic>; interrupts = <0 323 4>; amd,speed-set = <0>; + amd,serdes-blwc = <1>, <1>, <0>; + amd,serdes-cdr-rate = <2>, <2>, <7>; + amd,serdes-pq-skew = <10>, <10>, <30>; + amd,serdes-tx-amp = <15>, <15>, <10>; }; |