summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/ufs/cdns,ufshc.txt')
-rw-r--r--Documentation/devicetree/bindings/ufs/cdns,ufshc.txt32
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt b/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt
new file mode 100644
index 000000000..02347b017
--- /dev/null
+++ b/Documentation/devicetree/bindings/ufs/cdns,ufshc.txt
@@ -0,0 +1,32 @@
+* Cadence Universal Flash Storage (UFS) Controller
+
+UFS nodes are defined to describe on-chip UFS host controllers.
+Each UFS controller instance should have its own node.
+Please see the ufshcd-pltfrm.txt for a list of all available properties.
+
+Required properties:
+- compatible : Compatible list, contains one of the following controllers:
+ "cdns,ufshc" - Generic CDNS HCI,
+ "cdns,ufshc-m31-16nm" - CDNS UFS HC + M31 16nm PHY
+ complemented with the JEDEC version:
+ "jedec,ufs-2.0"
+
+- reg : Address and length of the UFS register set.
+- interrupts : One interrupt mapping.
+- freq-table-hz : Clock frequency table.
+ See the ufshcd-pltfrm.txt for details.
+- clocks : List of phandle and clock specifier pairs.
+- clock-names : List of clock input name strings sorted in the same
+ order as the clocks property. "core_clk" is mandatory.
+ Depending on a type of a PHY,
+ the "phy_clk" clock can also be added, if needed.
+
+Example:
+ ufs@fd030000 {
+ compatible = "cdns,ufshc", "jedec,ufs-2.0";
+ reg = <0xfd030000 0x10000>;
+ interrupts = <0 1 IRQ_TYPE_LEVEL_HIGH>;
+ freq-table-hz = <0 0>, <0 0>;
+ clocks = <&ufs_core_clk>, <&ufs_phy_clk>;
+ clock-names = "core_clk", "phy_clk";
+ };