linux-kernel - [PATCH v4 3/3] ata: qcom: Add device tree bindings information

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Message-Id: <1410194390-29007-3-git-send-email-galak@codeaurora.org>
Date:	Mon,  8 Sep 2014 11:39:50 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	Tejun Heo <tj@...nel.org>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>
Cc:	Kumar Gala <galak@...eaurora.org>, linux-ide@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 3/3] ata: qcom: Add device tree bindings information

Add device tree binding for Qualcomm AHCI SATA controller and specifically
the sata controller on the IPQ806x family of SoCs.

Signed-off-by: Kumar Gala <galak@...eaurora.org>
---
 .../devicetree/bindings/ata/qcom-sata.txt          | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/ata/qcom-sata.txt

diff --git a/Documentation/devicetree/bindings/ata/qcom-sata.txt b/Documentation/devicetree/bindings/ata/qcom-sata.txt
new file mode 100644
index 0000000..5e74e41
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/qcom-sata.txt
@@ -0,0 +1,40 @@
+* Qualcomm AHCI SATA Controller
+
+SATA nodes are defined to describe on-chip Serial ATA controllers.
+Each SATA controller should have its own node.
+
+Required properties:
+- compatible		: compatible list, contains "qcom,msm-ahci"
+- interrupts		: <interrupt mapping for SATA IRQ>
+- reg			: <registers mapping>
+- phys			: Must contain exactly one entry as specified
+			  in phy-bindings.txt
+- phy-names		: Must be "sata-phy"
+
+Required properties for "qcom,ipq806x-ahci" compatible:
+- clocks		: Must contain an entry for each entry in clock-names.
+- clock-names		: Shall be:
+				"slave_iface" - Fabric port AHB clock for SATA
+				"iface" - AHB clock
+				"core" - core clock
+				"rxoob" - RX out-of-band clock
+				"pmalive" - Power Module Alive clock
+
+Example:
+	sata@...00000 {
+		compatible = "qcom,ipq806x-ahci", "qcom,msm-ahci";
+		reg = <0x29000000 0x180>;
+
+		interrupts = <0 209 0x0>;
+
+		clocks = <&gcc SFAB_SATA_S_H_CLK>,
+			 <&gcc SATA_H_CLK>,
+			 <&gcc SATA_A_CLK>,
+			 <&gcc SATA_RXOOB_CLK>,
+			 <&gcc SATA_PMALIVE_CLK>;
+		clock-names = "slave_iface", "iface", "core",
+				"rxoob", "pmalive";
+
+		phys = <&sata_phy>;
+		phy-names = "sata-phy";
+	};
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

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