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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2018-03-30 01:00:34 +0200
committerDavid S. Miller <davem@davemloft.net>2018-03-31 22:17:23 -0400
commita5af1fb94ffcad1aff3bc7f8a78dae7ee266f31c (patch)
tree87473740dcff2faa60afd7c4a1d449247eb0e42e /Documentation/devicetree
parentc0b6edef0bf0e33c12eaf80c676ff09def011518 (diff)
dt-bindings: net: meson-dwmac: add support for the Meson8m2 SoC
The Meson8m2 SoC uses a similar (potentially even identical) register layout for the dwmac glue as Meson8b and GXBB. Unfortunately there is no documentation available. Testing shows that both, RMII and RGMII PHYs are working if they are configured as on Meson8b. Add a new compatible string to the documentation so differences (if there are any) between Meson8m2 and the other SoCs can be taken care of within the driver. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/net/meson-dwmac.txt5
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/net/meson-dwmac.txt b/Documentation/devicetree/bindings/net/meson-dwmac.txt
index 354dd9896bb5..61cada22ae6c 100644
--- a/Documentation/devicetree/bindings/net/meson-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/meson-dwmac.txt
@@ -9,6 +9,7 @@ Required properties on all platforms:
- compatible: Depending on the platform this should be one of:
- "amlogic,meson6-dwmac"
- "amlogic,meson8b-dwmac"
+ - "amlogic,meson8m2-dwmac"
- "amlogic,meson-gxbb-dwmac"
Additionally "snps,dwmac" and any applicable more
detailed version number described in net/stmmac.txt
@@ -19,13 +20,13 @@ Required properties on all platforms:
configuration (for example the PRG_ETHERNET register range
on Meson8b and newer)
-Required properties on Meson8b and newer:
+Required properties on Meson8b, Meson8m2, GXBB and newer:
- clock-names: Should contain the following:
- "stmmaceth" - see stmmac.txt
- "clkin0" - first parent clock of the internal mux
- "clkin1" - second parent clock of the internal mux
-Optional properties on Meson8b and newer:
+Optional properties on Meson8b, Meson8m2, GXBB and newer:
- amlogic,tx-delay-ns: The internal RGMII TX clock delay (provided
by this driver) in nanoseconds. Allowed values
are: 0ns, 2ns, 4ns, 6ns.