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Message-Id: <1402600404-19214-3-git-send-email-galak@codeaurora.org>
Date: Thu, 12 Jun 2014 14:13:24 -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 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";
+ };
--
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