This patch adds device tree binding documentation for
Xgene QMTM UIO driver.
Signed-off-by: Ankit Jindal <ankit.jin...@linaro.org>
Signed-off-by: Tushar Jagad <tushar.ja...@linaro.org>
---
.../devicetree/bindings/uio/uio_xgene_qmtm.txt | 45 ++++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt
diff --git a/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt
b/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt
new file mode 100644
index 0000000..b71831b
--- /dev/null
+++ b/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt
@@ -0,0 +1,45 @@
+APM X-Gene QMTM UIO nodes
+
+QMTM UIO nodes are defined for user space access to on-chip QMTM device
+on APM X-Gene SOC using UIO framework.
+
+Required properties:
+- compatible: Should be "apm,xgene-qmtm-uio"
+- reg: Address and length of the register set for the device. It contains the
+ information of registers in the same order as described by reg-names.
+- reg-names: Should contain the register set names
+ - "csr": QMTM control and status register address space.
+ - "fabric": QMTM memory mapped access to queue states.
+ - "qpool": Memory location for creating QMTM queues. This could be some
+ SRAM or reserved portion of RAM. It is expected that size and location
+ of qpool memory will be configurable via bootloader.
+- clocks: Reference to the clock entry.
+- num_queues: Number of queues under this QMTM device.
+- devid: QMTM identification number for the system having multiple QMTM devices
+
+Optional properties:
+- status: Should be "ok" or "disabled" for enabled/disabled. Default is "ok".
+
+Example:
+ qmtm1clk: qmtmclk@1f20c000 {
+ compatible = "apm,xgene-device-clock";
+ clock-output-names = "qmtm1clk";
+ status = "ok";
+ };
+
+ qmtm1_uio: qmtm_uio@1f200000 {
+ compatible = "apm,xgene-qmtm-uio";
+ status = "disabled";
+ reg = <0x0 0x1f200000 0x0 0x10000
+ 0x0 0x1b000000 0x0 0x400000
+ 0x0 0x00000000 0x0 0x0>;/* filled by bootloader */
+ reg-names = "csr", "fabric", "qpool";
+ clocks = <&qmtm1clk 0>;
+ num_queues = <0x400>;
+ devid = <1>;
+ };
+
+ /* Board-specific peripheral configurations */
+ &qmtm1_uio {
+ status = "ok";
+ };
--
1.7.9.5
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