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-rw-r--r--Documentation/devicetree/bindings/phy/samsung-phy.txt40
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 28f9edb8f19c..b422e38946d7 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -74,3 +74,43 @@ phy-consumer@12340000 {
Refer to DT bindings documentation of particular PHY consumer devices for more
information about required PHYs and the way of specification.
+
+Samsung SATA PHY Controller
+---------------------------
+
+SATA PHY nodes are defined to describe on-chip SATA Physical layer controllers.
+Each SATA PHY controller should have its own node.
+
+Required properties:
+- compatible : compatible list, contains "samsung,exynos5250-sata-phy"
+- reg : offset and length of the SATA PHY register set;
+- #phy-cells : must be zero
+- clocks : must be exactly one entry
+- clock-names : must be "sata_phyctrl"
+- samsung,exynos-sataphy-i2c-phandle : a phandle to the I2C device, no arguments
+- samsung,syscon-phandle : a phandle to the PMU system controller, no arguments
+
+Example:
+ sata_phy: sata-phy@12170000 {
+ compatible = "samsung,exynos5250-sata-phy";
+ reg = <0x12170000 0x1ff>;
+ clocks = <&clock 287>;
+ clock-names = "sata_phyctrl";
+ #phy-cells = <0>;
+ samsung,exynos-sataphy-i2c-phandle = <&sata_phy_i2c>;
+ samsung,syscon-phandle = <&pmu_syscon>;
+ };
+
+Device-Tree bindings for sataphy i2c client driver
+--------------------------------------------------
+
+Required properties:
+compatible: Should be "samsung,exynos-sataphy-i2c"
+- reg: I2C address of the sataphy i2c device.
+
+Example:
+
+ sata_phy_i2c:sata-phy@38 {
+ compatible = "samsung,exynos-sataphy-i2c";
+ reg = <0x38>;
+ };

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