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From 08861b67c94a28e3a1bbcfb04a141ab0eafa5dac Mon Sep 17 00:00:00 2001
From: Calvin Johnson <calvin.johnson@nxp.com>
Date: Sat, 16 Sep 2017 07:05:49 +0530
Subject: [PATCH] net: fsl_ppfe: dts binding for ppfe
Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
---
.../devicetree/bindings/net/fsl_ppfe/pfe.txt | 173 +++++++++++++++++++++
1 file changed, 173 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/fsl_ppfe/pfe.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/fsl_ppfe/pfe.txt
@@ -0,0 +1,173 @@
+=============================================================================
+NXP Programmable Packet Forwarding Engine Device Bindings
+
+CONTENTS
+ - PFE Node
+ - Ethernet Node
+
+=============================================================================
+PFE Node
+
+DESCRIPTION
+
+PFE Node has all the properties associated with Packet Forwarding Engine block.
+
+PROPERTIES
+
+- compatible
+ Usage: required
+ Value type: <stringlist>
+ Definition: Must include "fsl,pfe"
+
+- reg
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A standard property.
+ Specifies the offset of the following registers:
+ - PFE configuration registers
+ - DDR memory used by PFE
+
+- fsl,pfe-num-interfaces
+ Usage: required
+ Value type: <u32>
+ Definition: Must be present. Value can be either one or two.
+
+- interrupts
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Three interrupts are specified in this property.
+ - HIF interrupt
+ - HIF NO COPY interrupt
+ - Wake On LAN interrupt
+
+- interrupt-names
+ Usage: required
+ Value type: <stringlist>
+ Definition: Following strings are defined for the 3 interrupts.
+ "pfe_hif" - HIF interrupt
+ "pfe_hif_nocpy" - HIF NO COPY interrupt
+ "pfe_wol" - Wake On LAN interrupt
+
+- memory-region
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle to a node describing reserved memory used by pfe.
+ Refer:- Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+
+- fsl,pfe-scfg
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle for scfg.
+
+- fsl,rcpm-wakeup
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle for rcpm.
+
+- clocks
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle for clockgen.
+
+- clock-names
+ Usage: required
+ Value type: <string>
+ Definition: phandle for clock name.
+
+EXAMPLE
+
+pfe: pfe@04000000 {
+ compatible = "fsl,pfe";
+ reg = <0x0 0x04000000 0x0 0xc00000>, /* AXI 16M */
+ <0x0 0x83400000 0x0 0xc00000>; /* PFE DDR 12M */
+ reg-names = "pfe", "pfe-ddr";
+ fsl,pfe-num-interfaces = <0x2>;
+ interrupts = <0 172 0x4>, /* HIF interrupt */
+ <0 173 0x4>, /*HIF_NOCPY interrupt */
+ <0 174 0x4>; /* WoL interrupt */
+ interrupt-names = "pfe_hif", "pfe_hif_nocpy", "pfe_wol";
+ memory-region = <&pfe_reserved>;
+ fsl,pfe-scfg = <&scfg 0>;
+ fsl,rcpm-wakeup = <&rcpm 0xf0000020>;
+ clocks = <&clockgen 4 0>;
+ clock-names = "pfe";
+
+ status = "okay";
+ pfe_mac0: ethernet@0 {
+ };
+
+ pfe_mac1: ethernet@1 {
+ };
+};
+
+=============================================================================
+Ethernet Node
+
+DESCRIPTION
+
+Ethernet Node has all the properties associated with PFE used by platforms to
+connect to PHY:
+
+PROPERTIES
+
+- compatible
+ Usage: required
+ Value type: <stringlist>
+ Definition: Must include "fsl,pfe-gemac-port"
+
+- reg
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A standard property.
+ Specifies the gemacid of the interface.
+
+- fsl,gemac-bus-id
+ Usage: required
+ Value type: <u32>
+ Definition: Must be present. Value should be the id of the bus
+ connected to gemac.
+
+- fsl,gemac-phy-id
+ Usage: required
+ Value type: <u32>
+ Definition: Must be present. Value should be the id of the phy
+ connected to gemac.
+
+- fsl,mdio-mux-val
+ Usage: required
+ Value type: <u32>
+ Definition: Must be present. Value can be either 0 or 2 or 3.
+ This value is used to configure the mux to enable mdio.
+
+- phy-mode
+ Usage: required
+ Value type: <string>
+ Definition: Must include "sgmii"
+
+- fsl,pfe-phy-if-flags
+ Usage: required
+ Value type: <u32>
+ Definition: Must be present. Value should be 0 by default.
+ If there is not phy connected, this need to be 1.
+
+- mdio
+ optional subnode that specifies the mdio bus. This has reg
+ property which is used to enable/disable the mdio bus.
+
+EXAMPLE
+
+ethernet@0 {
+ compatible = "fsl,pfe-gemac-port";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>; /* GEM_ID */
+ fsl,gemac-bus-id = <0x0>; /* BUS_ID */
+ fsl,gemac-phy-id = <0x2>; /* PHY_ID */
+ fsl,mdio-mux-val = <0x0>;
+ phy-mode = "sgmii";
+ fsl,pfe-phy-if-flags = <0x0>;
+
+ mdio@0 {
+ reg = <0x1>; /* enabled/disabled */
+ };
+};
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