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Message-Id: <1464969786-22742-4-git-send-email-pramod.kumar@broadcom.com>
Date: Fri, 3 Jun 2016 21:33:02 +0530
From: Pramod Kumar <pramod.kumar@...adcom.com>
To: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Kishon Vijay Abraham I <kishon@...com>,
"David S. Miller" <davem@...emloft.net>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
bcm-kernel-feedback-list@...adcom.com,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
Pramod Kumar <pramod.kumar@...adcom.com>
Subject: [PATCH v3 RESEND 3/7] binding: mdio-mux: Add DT binding doc for Broadcom MDIO bus mutiplexer
Add DT binding doc for Broadcom MDIO bus mutiplexer driver.
Signed-off-by: Pramod Kumar <pramod.kumar@...adcom.com>
---
.../bindings/net/brcm,mdio-mux-iproc.txt | 59 ++++++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
diff --git a/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
new file mode 100644
index 0000000..7c53278
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/brcm,mdio-mux-iproc.txt
@@ -0,0 +1,59 @@
+Properties for an MDIO bus mutiplexer found in Broadcom iProc based SoCs.
+
+This MDIO bus multiplexer defines buses that could be internal as well as
+external to SoCs and could accept MDIO transaction compatible to C-22 or
+C-45 Clause. When child bus is selected, one needs to select these two
+properties as well to generate desired MDIO trascation on appropriate bus.
+
+Required properties in addition to the generic multiplexer properties:
+
+MDIO multiplexer node:
+- compatible: brcm,mdio-mux-iproc.
+
+Every non-ethernet PHY requires a compatible so that it could be probed based
+on this compatible string.
+
+Additional information regarding generic multiplexer properties can be found
+at- Documentation/devicetree/bindings/net/mdio-mux.txt
+
+
+for example:
+ mdio_mux_iproc: mdio-mux@...2023c {
+ compatible = "brcm,mdio-mux-iproc";
+ reg = <0x6602023c 0x14>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mdio@0 {
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pci_phy0: pci-phy@0 {
+ compatible = "brcm,ns2-pcie-phy";
+ reg = <0x0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ mdio@7 {
+ reg = <0x7>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pci_phy1: pci-phy@0 {
+ compatible = "brcm,ns2-pcie-phy";
+ reg = <0x0>;
+ #phy-cells = <0>;
+ };
+ };
+ mdio@10 {
+ reg = <0x10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gphy0: eth-phy@10 {
+ reg = <0x10>;
+ };
+ };
+ };
--
1.9.1
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