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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2016-09-06 23:38:43 +0200
committerKevin Hilman <khilman@baylibre.com>2016-09-07 14:12:47 -0700
commit6aee159712acf9585b3647bd5404a1db542bc518 (patch)
tree134fb9f92debad97f711d21b2d5afdca3face920 /Documentation/devicetree/bindings/net
parentad855eae6caf0d1dd17bce5bcd8e07759adc9903 (diff)
net: dt-bindings: Document the new Meson8b and GXBB DWMAC bindings
This patch adds the documentation for the DWMAC ethernet controller found in Amlogic Meson 8b (S805) and GXBB (S905) SoCs. The main difference between the Meson6 glue is that different registers (with different layout) are used. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/meson-dwmac.txt45
1 files changed, 37 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/net/meson-dwmac.txt b/Documentation/devicetree/bindings/net/meson-dwmac.txt
index ec633d74a8a8..89e62ddc69ca 100644
--- a/Documentation/devicetree/bindings/net/meson-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/meson-dwmac.txt
@@ -1,18 +1,32 @@
* Amlogic Meson DWMAC Ethernet controller
The device inherits all the properties of the dwmac/stmmac devices
-described in the file net/stmmac.txt with the following changes.
+described in the file stmmac.txt in the current directory with the
+following changes.
-Required properties:
+Required properties on all platforms:
-- compatible: should be "amlogic,meson6-dwmac" along with "snps,dwmac"
- and any applicable more detailed version number
- described in net/stmmac.txt
+- compatible: Depending on the platform this should be one of:
+ - "amlogic,meson6-dwmac"
+ - "amlogic,meson8b-dwmac"
+ - "amlogic,meson-gxbb-dwmac"
+ Additionally "snps,dwmac" and any applicable more
+ detailed version number described in net/stmmac.txt
+ should be used.
-- reg: should contain a register range for the dwmac controller and
- another one for the Amlogic specific configuration
+- reg: The first register range should be the one of the DWMAC
+ controller. The second range is is for the Amlogic specific
+ configuration (for example the PRG_ETHERNET register range
+ on Meson8b and newer)
-Example:
+Required properties on Meson8b 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
+
+
+Example for Meson6:
ethmac: ethernet@c9410000 {
compatible = "amlogic,meson6-dwmac", "snps,dwmac";
@@ -23,3 +37,18 @@ Example:
clocks = <&clk81>;
clock-names = "stmmaceth";
}
+
+Example for GXBB:
+ ethmac: ethernet@c9410000 {
+ compatible = "amlogic,meson-gxbb-dwmac", "snps,dwmac";
+ reg = <0x0 0xc9410000 0x0 0x10000>,
+ <0x0 0xc8834540 0x0 0x8>;
+ interrupts = <0 8 1>;
+ interrupt-names = "macirq";
+ clocks = <&clkc CLKID_ETH>,
+ <&clkc CLKID_FCLK_DIV2>,
+ <&clkc CLKID_MPLL2>;
+ clock-names = "stmmaceth", "clkin0", "clkin1";
+ phy-mode = "rgmii";
+ status = "disabled";
+ };