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";
+        };