This patch adds documentation for the APM X-Gene SoC SATA host controller DTS
binding.
Signed-off-by: Loc Ho <lho@xxxxxxx>
Signed-off-by: Tuan Phan <tphan@xxxxxxx>
Signed-off-by: Suman Tripathi <stripathi@xxxxxxx>
---
.../devicetree/bindings/ata/apm-xgene.txt | 76 ++++++++++++++++++++
1 files changed, 76 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/ata/apm-xgene.txt
diff --git a/Documentation/devicetree/bindings/ata/apm-xgene.txt b/Documentation/devicetree/bindings/ata/apm-xgene.txt
new file mode 100644
index 0000000..7bcfbf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/apm-xgene.txt
@@ -0,0 +1,76 @@
+* APM X-Gene 6.0 Gb/s SATA host controller nodes
+
+SATA host controller nodes are defined to describe on-chip Serial ATA
+controllers. Each SATA controller (pair of ports) have its own node.
+
+Required properties:
+- compatible : Shall contain:
+ * "apm,xgene-ahci"
+- reg : First memory resource shall be the AHCI memory
+ resource.
+ Second memory resource shall be the host controller
+ core memory resource.
+ Third memory resource shall be the host controller
+ diagnostic memory resource.
+ 4th memory resource shall be the host controller
+ AXI memory resource.
+ 5th optional memory resource shall be the host
+ controller MUX memory resource if required.
+- interrupts : Interrupt-specifier for SATA host controller IRQ.
+- clocks : Reference to the clock entry.
+- phys : A list of phandles + phy-specifiers, one for each
+ entry in phy-names.
+- phy-names : Should contain:
+ * "sata-phy" for the SATA 6.0Gbps PHY
+
+Optional properties:
+- status : Shall be "ok" if enabled or "disabled" if disabled.
+ Default is "ok".
+
+Example:
+ sataclk: sataclk {
+ compatible = "fixed-clock";
+ #clock-cells = <1>;
+ clock-frequency = <100000000>;
+ clock-output-names = "sataclk";
+ };
+
+ phy2: phy@1f22a000 {
+ compatible = "apm,xgene-phy";
+ reg = <0x0 0x1f22a000 0x0 0x100>;
+ #phy-cells = <1>;
+ };
+
+ phy3: phy@1f23a000 {
+ compatible = "apm,xgene-phy";
+ reg = <0x0 0x1f23a000 0x0 0x100>;
+ #phy-cells = <1>;
+ };
+
+ sata2: sata@1a400000 {
+ compatible = "apm,xgene-ahci";
+ reg = <0x0 0x1a400000 0x0 0x1000>,
+ <0x0 0x1f220000 0x0 0x1000>,
+ <0x0 0x1f22d000 0x0 0x1000>,
+ <0x0 0x1f22e000 0x0 0x1000>,
+ <0x0 0x1f227000 0x0 0x1000>;
+ interrupts = <0x0 0x87 0x4>;
+ status = "ok";
+ clocks = <&sataclk 0>;
+ phys = <&phy2 0>;
+ phy-names = "sata-phy";
+ };
+
+ sata3: sata@1a800000 {
+ compatible = "apm,xgene-ahci-pcie";
+ reg = <0x0 0x1a800000 0x0 0x1000>,
+ <0x0 0x1f230000 0x0 0x1000>,
+ <0x0 0x1f23d000 0x0 0x1000>,
+ <0x0 0x1f23e000 0x0 0x1000>,
+ <0x0 0x1f237000 0x0 0x1000>;
+ interrupts = <0x0 0x88 0x4>;
+ status = "ok";
+ clocks = <&sataclk 0>;
+ phys = <&phy3 0>;
+ phy-names = "sata-phy";
+ };
--
1.5.5
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
