summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/ata/exynos-sata.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/ata/exynos-sata.txt')
-rw-r--r--Documentation/devicetree/bindings/ata/exynos-sata.txt30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/exynos-sata.txt b/Documentation/devicetree/bindings/ata/exynos-sata.txt
new file mode 100644
index 000000000..cb4844824
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/exynos-sata.txt
@@ -0,0 +1,30 @@
+* Samsung 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 "samsung,exynos5-sata"
+- interrupts : <interrupt mapping for SATA IRQ>
+- reg : <registers mapping>
+- samsung,sata-freq : <frequency in MHz>
+- phys : Must contain exactly one entry as specified
+ in phy-bindings.txt
+- phy-names : Must be "sata-phy"
+
+Optional properties:
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : Shall be "sata" for the external SATA bus clock,
+ and "sclk_sata" for the internal controller clock.
+
+Example:
+ sata@122f0000 {
+ compatible = "snps,dwc-ahci";
+ samsung,sata-freq = <66>;
+ reg = <0x122f0000 0x1ff>;
+ interrupts = <0 115 0>;
+ clocks = <&clock 277>, <&clock 143>;
+ clock-names = "sata", "sclk_sata";
+ phys = <&sata_phy>;
+ phy-names = "sata-phy";
+ };