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| author |   David S. Miller <davem@davemloft.net> | 2017-12-15 13:23:22 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-15 13:23:22 -0500 |
| commit | f3ac01534613e91d89b4cfcea5b3dde268121ae2 (patch) | |
| tree | 5a9e78ff7b6afd08433d7affa62740e5b88ec84e /Documentation | |
| parent | Merge branch 'nfp-fix-rtsym-and-XPB-register-handling-in-debug-dump' (diff) | |
| parent | sfp: add sff module support (diff) | |
Merge branch 'sfp-SFF-module-support'
Russell King says:
====================
Add SFF module support
Add support for SFF modules. SFF modules are similar to SFP modules,
but they have fewer control signals, and are soldered down rather than
pluggable.
They also have different IDs in the EEPROM to identify as soldered down
SFF modules.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/sff,sfp.txt | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.txt b/Documentation/devicetree/bindings/net/sff,sfp.txt index 60e970ce10ee..f1c441bedf68 100644 --- a/Documentation/devicetree/bindings/net/sff,sfp.txt +++ b/Documentation/devicetree/bindings/net/sff,sfp.txt @@ -3,7 +3,9 @@ Transceiver Required properties: -- compatible : must be "sff,sfp" +- compatible : must be one of + "sff,sfp" for SFP modules + "sff,sff" for soldered down SFF modules Optional Properties: @@ -11,7 +13,8 @@ Optional Properties: interface - mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) - module presence input gpio signal, active (module absent) high + module presence input gpio signal, active (module absent) high. Must + not be present for SFF modules - los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal Indication input gpio signal, active (signal lost) high @@ -24,10 +27,11 @@ Optional Properties: - rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate + Must not be present for SFF modules - rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high: - high Tx rate + high Tx rate. Must not be present for SFF modules Example #1: Direct serdes to SFP connection |