linux-kernel - [PATCH v3 2/5] Documentation: devicetree: add Broadcom SATA PHY binding

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Message-Id: <1431473303-18873-3-git-send-email-computersforpeace@gmail.com>
Date:	Tue, 12 May 2015 16:28:20 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Tejun Heo <tj@...nel.org>, Kishon Vijay Abraham I <kishon@...com>
Cc:	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>,
	Brian Norris <computersforpeace@...il.com>,
	Gregory Fong <gregory.0xf0@...il.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Hans de Goede <hdegoede@...hat.com>,
	<bcm-kernel-feedback-list@...adcom.com>,
	Kevin Cernekee <cernekee@...il.com>
Subject: [PATCH v3 2/5] Documentation: devicetree: add Broadcom SATA PHY binding

For 28nm STB chips, based on BCM7445.

Signed-off-by: Brian Norris <computersforpeace@...il.com>
---
v3: no change

v2:
  - make each subnode into a provider, so we can use direct phandle references
    to them
  - drop the 'port-ctrl' register range, since this was shared with the SATA
    node 

 .../bindings/phy/brcm,brcmstb-sata-phy.txt         | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-sata-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm,brcmstb-sata-phy.txt
new file mode 100644
index 000000000000..7f81ef90146a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-sata-phy.txt
@@ -0,0 +1,40 @@
+* Broadcom SATA3 PHY for STB
+
+Required properties:
+- compatible: should be one or more of
+     "brcm,bcm7445-sata-phy"
+     "brcm,phy-sata3"
+- address-cells: should be 1
+- size-cells: should be 0
+- reg: register range for the PHY PCB interface
+- reg-names: should be "phy"
+
+Sub-nodes:
+  Each port's PHY should be represented as a sub-node.
+
+Sub-nodes required properties:
+- reg: the PHY number
+- phy-cells: generic PHY binding; must be 0
+Optional:
+- brcm,enable-ssc: use spread spectrum clocking (SSC) on this port
+
+
+Example:
+
+	sata-phy@...58100 {
+		compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
+		reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
+		reg-names = "phy";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		sata-phy@0 {
+			reg = <0>;
+			#phy-cells = <0>;
+		};
+
+		sata-phy@1 {
+			reg = <1>;
+			#phy-cells = <0>;
+		};
+	};
-- 
1.9.1

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