dt-bindings: net: Add Qualcomm ethqos binding

Add support for Qualcomm ethqos found in some SoCs like QCS404.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/qcom,ethqos.txt b/Documentation/devicetree/bindings/net/qcom,ethqos.txt
new file mode 100644 (file)
index 0000000..fcf5035
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/qcom,ethqos.txt
@@ -0,0 +1,64 @@
+Qualcomm Ethernet ETHQOS device
+
+This documents dwmmac based ethernet device which supports Gigabit
+ethernet for version v2.3.0 onwards.
+
+This device has following properties:
+
+Required properties:
+
+- compatible: Should be qcom,qcs404-ethqos"
+
+- reg: Address and length of the register set for the device
+
+- reg-names: Should contain register names "stmmaceth", "rgmii"
+
+- clocks: Should contain phandle to clocks
+
+- clock-names: Should contain clock names "stmmaceth", "pclk",
+               "ptp_ref", "rgmii"
+
+- interrupts: Should contain phandle to interrupts
+
+- interrupt-names: Should contain interrupt names "macirq", "eth_lpi"
+
+Rest of the properties are defined in stmmac.txt file in same directory
+
+
+Example:
+
+ethernet: ethernet@7a80000 {
+       compatible = "qcom,qcs404-ethqos";
+       reg = <0x07a80000 0x10000>,
+               <0x07a96000 0x100>;
+       reg-names = "stmmaceth", "rgmii";
+       clock-names = "stmmaceth", "pclk", "ptp_ref", "rgmii";
+       clocks = <&gcc GCC_ETH_AXI_CLK>,
+               <&gcc GCC_ETH_SLAVE_AHB_CLK>,
+               <&gcc GCC_ETH_PTP_CLK>,
+               <&gcc GCC_ETH_RGMII_CLK>;
+       interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+                       <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+       interrupt-names = "macirq", "eth_lpi";
+       snps,reset-gpio = <&tlmm 60 GPIO_ACTIVE_LOW>;
+       snps,reset-active-low;
+
+       snps,txpbl = <8>;
+       snps,rxpbl = <2>;
+       snps,aal;
+       snps,tso;
+
+       phy-handle = <&phy1>;
+       phy-mode = "rgmii";
+
+       mdio {
+               #address-cells = <0x1>;
+               #size-cells = <0x0>;
+               compatible = "snps,dwmac-mdio";
+               phy1: phy@4 {
+                       device_type = "ethernet-phy";
+                       reg = <0x4>;
+               };
+       };
+
+};